AyeCode / invoicing

templates/payment-forms/cart.php

Spacing +14 added lines, -14 removed lines

@@ -7,29 +7,29 @@ 
  * @version 1.0.19
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 // Cart table columns.
 $columns = array(
-    'name'     => __( 'Item', 'invoicing' ),
-    'price'    => __( 'Price', 'invoicing' ),
-    'quantity' => __( 'Quantity', 'invoicing' ),
-    'subtotal' => __( 'Subtotal', 'invoicing' ),
+    'name'     => __('Item', 'invoicing'),
+    'price'    => __('Price', 'invoicing'),
+    'quantity' => __('Quantity', 'invoicing'),
+    'subtotal' => __('Subtotal', 'invoicing'),
 );
 
-if ( ! empty( $form->invoice ) ) {
-    $columns = getpaid_invoice_item_columns( $form->invoice );
+if (!empty($form->invoice)) {
+    $columns = getpaid_invoice_item_columns($form->invoice);
 }
 
-$columns = apply_filters( 'getpaid_payment_form_cart_table_columns', $columns, $form );
+$columns = apply_filters('getpaid_payment_form_cart_table_columns', $columns, $form);
 
 ?>
     <div class="getpaid-payment-form-items-cart border">
         <div class="getpaid-payment-form-items-cart-header">
             <div class="form-row">
-            <?php foreach ( $columns as $key => $label ) : ?>
-                <div class="<?php echo 'name' == $key ? 'col-12 col-sm-6' : 'col-12 col-sm' ?> getpaid-form-cart-item-<?php echo esc_attr( $key ); ?>">
-                    <?php echo sanitize_text_field( $label ); ?>
+            <?php foreach ($columns as $key => $label) : ?>
+                <div class="<?php echo 'name' == $key ? 'col-12 col-sm-6' : 'col-12 col-sm' ?> getpaid-form-cart-item-<?php echo esc_attr($key); ?>">
+                    <?php echo sanitize_text_field($label); ?>
                 </div>
             <?php endforeach; ?>
             </div>
@@ -37,12 +37,12 @@ 
         <?php
 
             // Display the item totals.
-            foreach ( $form->get_items() as $item ) {
-                wpinv_get_template( 'payment-forms/cart-item.php', compact( 'form', 'item', 'columns' ) );
+            foreach ($form->get_items() as $item) {
+                wpinv_get_template('payment-forms/cart-item.php', compact('form', 'item', 'columns'));
             }
 
             // Display the cart totals.
-            wpinv_get_template( 'payment-forms/cart-totals.php', compact( 'form' ) );
+            wpinv_get_template('payment-forms/cart-totals.php', compact('form'));
 
         ?>
     </div>

templates/payment-forms/cart-totals.php

Spacing +28 added lines, -28 removed lines

@@ -7,25 +7,25 @@ 
  * @version 1.0.19
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 // Totals rows.
 $totals = apply_filters(
     'getpaid_payment_form_cart_table_totals',
     array(
-        'subtotal' => __( 'Subtotal', 'invoicing' ),
-        'tax'      => __( 'Tax', 'invoicing' ),
-        'discount' => __( 'Discount', 'invoicing' ),
-        'total'    => __( 'Total', 'invoicing' ),
+        'subtotal' => __('Subtotal', 'invoicing'),
+        'tax'      => __('Tax', 'invoicing'),
+        'discount' => __('Discount', 'invoicing'),
+        'total'    => __('Total', 'invoicing'),
     ),
     $form
 );
 
-if ( ! wpinv_use_taxes() && isset( $totals['tax'] ) ) {
-    unset( $totals['tax'] );
+if (!wpinv_use_taxes() && isset($totals['tax'])) {
+    unset($totals['tax']);
 }
 
-do_action( 'getpaid_before_payment_form_cart_totals', $form, $totals );
+do_action('getpaid_before_payment_form_cart_totals', $form, $totals);
 
 $tax       = 0;
 $sub_total = 0;
@@ -33,15 +33,15 @@ 
 $discount  = 0;
 
 // Calculate totals.
-foreach ( $form->get_items() as $item ) {
+foreach ($form->get_items() as $item) {
     $amount = $item->get_price();
 
     // Include the tax.
-    if ( wpinv_use_taxes() ) {
-        $rate = wpinv_get_tax_rate( wpinv_get_default_country(), false, $item->get_id() );
+    if (wpinv_use_taxes()) {
+        $rate = wpinv_get_tax_rate(wpinv_get_default_country(), false, $item->get_id());
 
-        if ( wpinv_prices_include_tax() ) {
-            $pre_tax  = ( $amount - $amount * $rate * 0.01 );
+        if (wpinv_prices_include_tax()) {
+            $pre_tax  = ($amount - $amount * $rate * 0.01);
             $item_tax = $amount - $pre_tax;
         } else {
             $pre_tax  = $amount;
@@ -53,41 +53,41 @@ 
         $total     = $sub_total + $tax;
 
     } else {
-        $total  = $total + $amount;
+        $total = $total + $amount;
     }
 
 }
 
 ?>
 <div class='border-top getpaid-payment-form-items-cart-totals'>
-    <?php foreach ( $totals as $key => $label ) : ?>
-        <div class="getpaid-form-cart-totals-col getpaid-form-cart-totals-<?php echo esc_attr( $key ); ?>">
+    <?php foreach ($totals as $key => $label) : ?>
+        <div class="getpaid-form-cart-totals-col getpaid-form-cart-totals-<?php echo esc_attr($key); ?>">
             <div class="row">
                 <div class="col-12 offset-sm-6 col-sm-4">
-                    <?php echo sanitize_text_field( $label ); ?>
+                    <?php echo sanitize_text_field($label); ?>
                 </div>
-                <div class="col-12 col-sm-2 getpaid-form-cart-totals-total-<?php echo esc_attr( $key ); ?>">
+                <div class="col-12 col-sm-2 getpaid-form-cart-totals-total-<?php echo esc_attr($key); ?>">
                     <?php
-                        do_action( "getpaid_payment_form_cart_totals_$key", $form );
+                        do_action("getpaid_payment_form_cart_totals_$key", $form);
 
                         // Total tax.
-                        if ( 'tax' == $key ) {
-                            echo wpinv_price( wpinv_format_amount( $tax ) );
+                        if ('tax' == $key) {
+                            echo wpinv_price(wpinv_format_amount($tax));
                         }
 
                         // Total discount.
-                        if ( 'discount' == $key ) {
-                            echo wpinv_price( wpinv_format_amount( $discount ) );
+                        if ('discount' == $key) {
+                            echo wpinv_price(wpinv_format_amount($discount));
                         }
 
                         // Sub total.
-                        if ( 'subtotal' == $key ) {
-                            echo wpinv_price( wpinv_format_amount( $sub_total ) );
+                        if ('subtotal' == $key) {
+                            echo wpinv_price(wpinv_format_amount($sub_total));
                         }
 
                         // Total.
-                        if ( 'total' == $key ) {
-                            echo wpinv_price( wpinv_format_amount( $total ) );
+                        if ('total' == $key) {
+                            echo wpinv_price(wpinv_format_amount($total));
                         }
                     ?>
                 </div>
@@ -97,4 +97,4 @@ 
 </div>
 
 <?php
-do_action(  'getpaid_payment_form_cart_totals', $form, $totals );
+do_action('getpaid_payment_form_cart_totals', $form, $totals);

includes/wpinv-address-functions.php

Spacing +112 added lines, -112 removed lines

@@ -7,15 +7,15 @@ 
  */
  
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
 
 function wpinv_get_default_country() {
-	$country = wpinv_get_option( 'default_country', 'UK' );
+	$country = wpinv_get_option('default_country', 'UK');
 
-	return apply_filters( 'wpinv_default_country', $country );
+	return apply_filters('wpinv_default_country', $country);
 }
 
 /**
@@ -24,59 +24,59 @@ 
  * @param string $country The country code to sanitize
  * @return array
  */
-function wpinv_sanitize_country( $country ) {
+function wpinv_sanitize_country($country) {
 
 	// Enure the country is specified
-    if ( empty( $country ) ) {
+    if (empty($country)) {
         $country = wpinv_get_default_country();
     }
-    return trim( wpinv_utf8_strtoupper( $country ) );
+    return trim(wpinv_utf8_strtoupper($country));
 
 }
 
-function wpinv_is_base_country( $country ) {
+function wpinv_is_base_country($country) {
     $base_country = wpinv_get_default_country();
     
-    if ( $base_country === 'UK' ) {
+    if ($base_country === 'UK') {
         $base_country = 'GB';
     }
-    if ( $country == 'UK' ) {
+    if ($country == 'UK') {
         $country = 'GB';
     }
 
-    return ( $country && $country === $base_country ) ? true : false;
+    return ($country && $country === $base_country) ? true : false;
 }
 
-function wpinv_country_name( $country_code = '' ) { 
+function wpinv_country_name($country_code = '') { 
     $countries = wpinv_get_country_list();
     $country_code = $country_code == 'UK' ? 'GB' : $country_code;
-    $country = isset( $countries[$country_code] ) ? $countries[$country_code] : $country_code;
+    $country = isset($countries[$country_code]) ? $countries[$country_code] : $country_code;
 
-    return apply_filters( 'wpinv_country_name', $country, $country_code );
+    return apply_filters('wpinv_country_name', $country, $country_code);
 }
 
 function wpinv_get_default_state() {
-	$state = wpinv_get_option( 'default_state', false );
+	$state = wpinv_get_option('default_state', false);
 
-	return apply_filters( 'wpinv_default_state', $state );
+	return apply_filters('wpinv_default_state', $state);
 }
 
-function wpinv_state_name( $state_code = '', $country_code = '' ) {
+function wpinv_state_name($state_code = '', $country_code = '') {
     $state = $state_code;
     
-    if ( !empty( $country_code ) ) {
-        $states = wpinv_get_country_states( $country_code );
+    if (!empty($country_code)) {
+        $states = wpinv_get_country_states($country_code);
         
-        $state = !empty( $states ) && isset( $states[$state_code] ) ? $states[$state_code] : $state;
+        $state = !empty($states) && isset($states[$state_code]) ? $states[$state_code] : $state;
     }
 
-    return apply_filters( 'wpinv_state_name', $state, $state_code, $country_code );
+    return apply_filters('wpinv_state_name', $state, $state_code, $country_code);
 }
 
 function wpinv_store_address() {
-    $address = wpinv_get_option( 'store_address', '' );
+    $address = wpinv_get_option('store_address', '');
 
-    return apply_filters( 'wpinv_store_address', $address );
+    return apply_filters('wpinv_store_address', $address);
 }
 
 /**
@@ -84,7 +84,7 @@ 
  * 
  * @param WPInv_Invoice $invoice
  */
-function getpaid_save_invoice_user_address( $invoice ) {
+function getpaid_save_invoice_user_address($invoice) {
 
     $address_fields = array(
         'first_name',
@@ -99,23 +99,23 @@ 
         'zip'
     );
 
-    foreach ( $address_fields as $field ) {
+    foreach ($address_fields as $field) {
         $method = "get_{$field}";
         $value = $invoice->$method();
 
         // Only save if it is not empty.
-        if ( ! empty( $value ) ) {
-            update_user_meta( $invoice->get_user_id(), '_wpinv_' . $field, $value );
+        if (!empty($value)) {
+            update_user_meta($invoice->get_user_id(), '_wpinv_' . $field, $value);
         }
     }
 
 }
 
-function wpinv_get_user_address( $user_id = 0, $with_default = true ) {
+function wpinv_get_user_address($user_id = 0, $with_default = true) {
     global $wpi_userID;
     
-    if( empty( $user_id ) ) {
-        $user_id = !empty( $wpi_userID ) ? $wpi_userID : get_current_user_id();
+    if (empty($user_id)) {
+        $user_id = !empty($wpi_userID) ? $wpi_userID : get_current_user_id();
     }
     
     $address_fields = array(
@@ -132,29 +132,29 @@ 
         'phone',
     );
 
-    $user_info = get_userdata( $user_id );
+    $user_info = get_userdata($user_id);
 
     $address = array();
     $address['user_id'] = $user_id;
-    $address['email'] = !empty( $user_info ) ? $user_info->user_email : '';
-    foreach ( $address_fields as $field ) {
-        $address[$field] = get_user_meta( $user_id, '_wpinv_' . $field, true );
+    $address['email'] = !empty($user_info) ? $user_info->user_email : '';
+    foreach ($address_fields as $field) {
+        $address[$field] = get_user_meta($user_id, '_wpinv_' . $field, true);
     }
 
-    if ( !empty( $user_info ) ) {
-        if( empty( $address['first_name'] ) )
+    if (!empty($user_info)) {
+        if (empty($address['first_name']))
             $address['first_name'] = $user_info->first_name;
         
-        if( empty( $address['last_name'] ) )
+        if (empty($address['last_name']))
             $address['last_name'] = $user_info->last_name;
     }
     
-    $address['name'] = trim( trim( $address['first_name'] . ' ' . $address['last_name'] ), "," );
+    $address['name'] = trim(trim($address['first_name'] . ' ' . $address['last_name']), ",");
     
-    if( empty( $address['state'] ) && $with_default )
+    if (empty($address['state']) && $with_default)
         $address['state'] = wpinv_get_default_state();
 
-    if( empty( $address['country'] ) && $with_default )
+    if (empty($address['country']) && $with_default)
         $address['country'] = wpinv_get_default_country();
 
 
@@ -168,16 +168,16 @@ 
  * @param string $return What to return.
  * @return array
  */
-function wpinv_get_continents( $return = 'all' ) {
+function wpinv_get_continents($return = 'all') {
 
-    $continents = wpinv_get_data( 'continents' );
+    $continents = wpinv_get_data('continents');
 
-    switch( $return ) {
+    switch ($return) {
         case 'name' :
-            return wp_list_pluck( $continents, 'name' );
+            return wp_list_pluck($continents, 'name');
             break;
         case 'countries' :
-            return wp_list_pluck( $continents, 'countries' );
+            return wp_list_pluck($continents, 'countries');
             break;
         default :
             return $continents;
@@ -193,12 +193,12 @@ 
  * @param string $country Country code. If no code is specified, defaults to the default country.
  * @return string
  */
-function wpinv_get_continent_code_for_country( $country = false ) {
+function wpinv_get_continent_code_for_country($country = false) {
 
-    $country = wpinv_sanitize_country( $country );
+    $country = wpinv_sanitize_country($country);
     
-	foreach ( wpinv_get_continents( 'countries' ) as $continent_code => $countries ) {
-		if ( false !== array_search( $country, $countries, true ) ) {
+	foreach (wpinv_get_continents('countries') as $continent_code => $countries) {
+		if (false !== array_search($country, $countries, true)) {
 			return $continent_code;
 		}
 	}
@@ -214,13 +214,13 @@ 
  * @param string $country Country code. If no code is specified, defaults to the default country.
  * @return array
  */
-function wpinv_get_country_calling_code( $country = null) {
+function wpinv_get_country_calling_code($country = null) {
 
-    $country = wpinv_sanitize_country( $country );
-    $codes   = wpinv_get_data( 'phone-codes' );
-    $code    = isset( $codes[ $country ] ) ? $codes[ $country ] : '';
+    $country = wpinv_sanitize_country($country);
+    $codes   = wpinv_get_data('phone-codes');
+    $code    = isset($codes[$country]) ? $codes[$country] : '';
 
-    if ( is_array( $code ) ) {
+    if (is_array($code)) {
         return $code[0];
     }
     return $code;
@@ -233,8 +233,8 @@ 
  * @param bool $first_empty Whether or not the first item in the list should be empty
  * @return array
  */
-function wpinv_get_country_list( $first_empty = false ) {
-    return wpinv_maybe_add_empty_option( apply_filters( 'wpinv_countries', wpinv_get_data( 'countries' ) ), $first_empty );
+function wpinv_get_country_list($first_empty = false) {
+    return wpinv_maybe_add_empty_option(apply_filters('wpinv_countries', wpinv_get_data('countries')), $first_empty);
 }
 
 /**
@@ -244,22 +244,22 @@ 
  * @param bool $first_empty Whether or not the first item in the list should be empty
  * @return array
  */
-function wpinv_get_country_states( $country = null, $first_empty = false ) {
+function wpinv_get_country_states($country = null, $first_empty = false) {
     
     // Prepare the country.
-    $country = wpinv_sanitize_country( $country );
+    $country = wpinv_sanitize_country($country);
 
     // Fetch all states.
-    $all_states = wpinv_get_data( 'states' );
+    $all_states = wpinv_get_data('states');
 
     // Fetch the specified country's states.
-    $states     = isset( $all_states[ $country ] ) ? $all_states[ $country ] : array() ;
-    $states     = apply_filters( "wpinv_{$country}_states", $states );
-    $states     = apply_filters( 'wpinv_country_states', $states, $country );
+    $states     = isset($all_states[$country]) ? $all_states[$country] : array();
+    $states     = apply_filters("wpinv_{$country}_states", $states);
+    $states     = apply_filters('wpinv_country_states', $states, $country);
 
-    asort( $states );
+    asort($states);
      
-    return wpinv_maybe_add_empty_option( $states, $first_empty );
+    return wpinv_maybe_add_empty_option($states, $first_empty);
 }
 
 /**
@@ -269,7 +269,7 @@ 
  * @return array
  */
 function wpinv_get_us_states_list() {
-    return apply_filters( 'wpinv_usa_states', wpinv_get_country_states( 'US' ) );
+    return apply_filters('wpinv_usa_states', wpinv_get_country_states('US'));
 }
 
 /**
@@ -279,7 +279,7 @@ 
  * @return array
  */
 function wpinv_get_canada_states_list() {
-    return apply_filters( 'wpinv_canada_provinces', wpinv_get_country_states( 'CA' ) );
+    return apply_filters('wpinv_canada_provinces', wpinv_get_country_states('CA'));
 }
 
 /**
@@ -289,7 +289,7 @@ 
  * @return array
  */
 function wpinv_get_australia_states_list() {
-    return apply_filters( 'wpinv_australia_states', wpinv_get_country_states( 'AU' ) );
+    return apply_filters('wpinv_australia_states', wpinv_get_country_states('AU'));
 }
 
 /**
@@ -299,7 +299,7 @@ 
  * @return array
  */
 function wpinv_get_bangladesh_states_list() {
-    return apply_filters( 'wpinv_bangladesh_states', wpinv_get_country_states( 'BD' ) );
+    return apply_filters('wpinv_bangladesh_states', wpinv_get_country_states('BD'));
 }
 
 /**
@@ -309,7 +309,7 @@ 
  * @return array
  */
 function wpinv_get_brazil_states_list() {
-    return apply_filters( 'wpinv_brazil_states', wpinv_get_country_states( 'BR' ) );
+    return apply_filters('wpinv_brazil_states', wpinv_get_country_states('BR'));
 }
 
 /**
@@ -319,7 +319,7 @@ 
  * @return array
  */
 function wpinv_get_bulgaria_states_list() {
-    return apply_filters( 'wpinv_bulgaria_states', wpinv_get_country_states( 'BG' ) );
+    return apply_filters('wpinv_bulgaria_states', wpinv_get_country_states('BG'));
 }
 
 /**
@@ -329,7 +329,7 @@ 
  * @return array
  */
 function wpinv_get_hong_kong_states_list() {
-    return apply_filters( 'wpinv_hong_kong_states', wpinv_get_country_states( 'HK' ) );
+    return apply_filters('wpinv_hong_kong_states', wpinv_get_country_states('HK'));
 }
 
 /**
@@ -339,7 +339,7 @@ 
  * @return array
  */
 function wpinv_get_hungary_states_list() {
-    return apply_filters( 'wpinv_hungary_states', wpinv_get_country_states( 'HU' ) );
+    return apply_filters('wpinv_hungary_states', wpinv_get_country_states('HU'));
 }
 
 /**
@@ -349,7 +349,7 @@ 
  * @return array
  */
 function wpinv_get_japan_states_list() {
-    return apply_filters( 'wpinv_japan_states', wpinv_get_country_states( 'JP' ) );
+    return apply_filters('wpinv_japan_states', wpinv_get_country_states('JP'));
 }
 
 /**
@@ -359,7 +359,7 @@ 
  * @return array
  */
 function wpinv_get_china_states_list() {
-    return apply_filters( 'wpinv_china_states', wpinv_get_country_states( 'CN' ) );
+    return apply_filters('wpinv_china_states', wpinv_get_country_states('CN'));
 }
 
 /**
@@ -369,7 +369,7 @@ 
  * @return array
  */
 function wpinv_get_new_zealand_states_list() {
-    return apply_filters( 'wpinv_new_zealand_states', wpinv_get_country_states( 'NZ' ) );
+    return apply_filters('wpinv_new_zealand_states', wpinv_get_country_states('NZ'));
 }
 
 /**
@@ -379,7 +379,7 @@ 
  * @return array
  */
 function wpinv_get_peru_states_list() {
-    return apply_filters( 'wpinv_peru_states', wpinv_get_country_states( 'PE' ) );
+    return apply_filters('wpinv_peru_states', wpinv_get_country_states('PE'));
 }
 
 /**
@@ -389,7 +389,7 @@ 
  * @return array
  */
 function wpinv_get_indonesia_states_list() {
-    return apply_filters( 'wpinv_indonesia_states', wpinv_get_country_states( 'ID' ) );
+    return apply_filters('wpinv_indonesia_states', wpinv_get_country_states('ID'));
 }
 
 /**
@@ -399,7 +399,7 @@ 
  * @return array
  */
 function wpinv_get_india_states_list() {
-    return apply_filters( 'wpinv_india_states', wpinv_get_country_states( 'IN' ) );
+    return apply_filters('wpinv_india_states', wpinv_get_country_states('IN'));
 }
 
 /**
@@ -409,7 +409,7 @@ 
  * @return array
  */
 function wpinv_get_iran_states_list() {
-    return apply_filters( 'wpinv_iran_states', wpinv_get_country_states( 'IR' ) );
+    return apply_filters('wpinv_iran_states', wpinv_get_country_states('IR'));
 }
 
 /**
@@ -419,7 +419,7 @@ 
  * @return array
  */
 function wpinv_get_italy_states_list() {
-    return apply_filters( 'wpinv_italy_states', wpinv_get_country_states( 'IT' ) );
+    return apply_filters('wpinv_italy_states', wpinv_get_country_states('IT'));
 }
 
 /**
@@ -429,7 +429,7 @@ 
  * @return array
  */
 function wpinv_get_malaysia_states_list() {
-    return apply_filters( 'wpinv_malaysia_states', wpinv_get_country_states( 'MY' ) );
+    return apply_filters('wpinv_malaysia_states', wpinv_get_country_states('MY'));
 }
 
 /**
@@ -439,7 +439,7 @@ 
  * @return array
  */
 function wpinv_get_mexico_states_list() {
-    return apply_filters( 'wpinv_mexico_states', wpinv_get_country_states( 'MX' ) );
+    return apply_filters('wpinv_mexico_states', wpinv_get_country_states('MX'));
 }
 
 /**
@@ -449,7 +449,7 @@ 
  * @return array
  */
 function wpinv_get_nepal_states_list() {
-    return apply_filters( 'wpinv_nepal_states', wpinv_get_country_states( 'NP' ) );
+    return apply_filters('wpinv_nepal_states', wpinv_get_country_states('NP'));
 }
 
 /**
@@ -459,7 +459,7 @@ 
  * @return array
  */
 function wpinv_get_south_africa_states_list() {
-    return apply_filters( 'wpinv_south_africa_states', wpinv_get_country_states( 'ZA' ) );
+    return apply_filters('wpinv_south_africa_states', wpinv_get_country_states('ZA'));
 }
 
 /**
@@ -469,7 +469,7 @@ 
  * @return array
  */
 function wpinv_get_thailand_states_list() {
-    return apply_filters( 'wpinv_thailand_states', wpinv_get_country_states( 'TH' ) );
+    return apply_filters('wpinv_thailand_states', wpinv_get_country_states('TH'));
 }
 
 /**
@@ -479,7 +479,7 @@ 
  * @return array
  */
 function wpinv_get_turkey_states_list() {
-    return apply_filters( 'wpinv_turkey_states', wpinv_get_country_states( 'TR' ) );
+    return apply_filters('wpinv_turkey_states', wpinv_get_country_states('TR'));
 }
 
 /**
@@ -489,28 +489,28 @@ 
  * @return array
  */
 function wpinv_get_spain_states_list() {
-    return apply_filters( 'wpinv_spain_states', wpinv_get_country_states( 'ES' ) );
+    return apply_filters('wpinv_spain_states', wpinv_get_country_states('ES'));
 }
 
 function wpinv_get_states_field() {
-	if( empty( $_POST['country'] ) ) {
+	if (empty($_POST['country'])) {
 		$_POST['country'] = wpinv_get_default_country();
 	}
-	$states = wpinv_get_country_states( sanitize_text_field( $_POST['country'] ) );
+	$states = wpinv_get_country_states(sanitize_text_field($_POST['country']));
 
-	if( !empty( $states ) ) {
-		$sanitized_field_name = sanitize_text_field( $_POST['field_name'] );
+	if (!empty($states)) {
+		$sanitized_field_name = sanitize_text_field($_POST['field_name']);
         
         $args = array(
 			'name'    => $sanitized_field_name,
 			'id'      => $sanitized_field_name,
 			'class'   => $sanitized_field_name . 'custom-select wpinv-select wpi_select2',
-			'options' => array_merge( array( '' => '' ), $states ),
+			'options' => array_merge(array('' => ''), $states),
 			'show_option_all'  => false,
 			'show_option_none' => false
 		);
 
-		$response = wpinv_html_select( $args );
+		$response = wpinv_html_select($args);
 
 	} else {
 		$response = 'nostates';
@@ -519,10 +519,10 @@ 
 	return $response;
 }
 
-function wpinv_default_billing_country( $country = '', $user_id = 0 ) {
-    $country = !empty( $country ) ? $country : wpinv_get_default_country();
+function wpinv_default_billing_country($country = '', $user_id = 0) {
+    $country = !empty($country) ? $country : wpinv_get_default_country();
     
-    return apply_filters( 'wpinv_default_billing_country', $country, $user_id );
+    return apply_filters('wpinv_default_billing_country', $country, $user_id);
 }
 
 /**
@@ -534,7 +534,7 @@ 
  */
 function wpinv_get_address_formats() {
 
-		return apply_filters( 'wpinv_localisation_address_formats',
+		return apply_filters('wpinv_localisation_address_formats',
 			array(
 				'default' => "{{name}}\n{{company}}\n{{address}}\n{{city}}\n{{state}}\n{{zip}}\n{{country}}",
 				'AU'      => "{{name}}\n{{company}}\n{{address}}\n{{city}}\n{{state}} {{zip}}\n{{country}}",
@@ -583,9 +583,9 @@ 
  * @see `wpinv_get_invoice_address_replacements`
  * @return string
  */
-function wpinv_get_full_address_format( $country = false) {
+function wpinv_get_full_address_format($country = false) {
 
-    if( empty( $country ) ) {
+    if (empty($country)) {
         $country = wpinv_get_default_country();
     }
 
@@ -593,7 +593,7 @@ 
 	$formats = wpinv_get_address_formats();
 
 	// Get format for the specified country.
-	$format = ( $country && isset( $formats[ $country ] ) ) ? $formats[ $country ] : $formats['default'];
+	$format = ($country && isset($formats[$country])) ? $formats[$country] : $formats['default'];
     
     /**
 	 * Filters the address format to use on Invoices.
@@ -605,7 +605,7 @@ 
 	 * @param string $format  The address format to use.
      * @param string $country The country who's address format is being retrieved.
 	 */
-    return apply_filters( 'wpinv_get_full_address_format', $format, $country );
+    return apply_filters('wpinv_get_full_address_format', $format, $country);
 }
 
 /**
@@ -616,7 +616,7 @@ 
  * @param array $billing_details customer's billing details
  * @return array
  */
-function wpinv_get_invoice_address_replacements( $billing_details ) {
+function wpinv_get_invoice_address_replacements($billing_details) {
 
     $default_args = array(
         'address'           => '',
@@ -629,22 +629,22 @@ 
 		'company'           => '',
     );
 
-    $args    = map_deep( wp_parse_args( $billing_details, $default_args ), 'trim' );
+    $args    = map_deep(wp_parse_args($billing_details, $default_args), 'trim');
     $state   = $args['state'];
     $country = $args['country'];
 
     // Handle full country name.
-    $full_country = empty( $country ) ? $country : wpinv_country_name( $country );
+    $full_country = empty($country) ? $country : wpinv_country_name($country);
 
     // Handle full state name.
-    $full_state   = ( $country && $state ) ?  wpinv_state_name( $state, $country ) : $state;
+    $full_state   = ($country && $state) ?  wpinv_state_name($state, $country) : $state;
 
     $args['postcode']    = $args['zip'];
     $args['name']        = $args['first_name'] . ' ' . $args['last_name'];
     $args['state']       = $full_state;
     $args['state_code']  = $state;
     $args['country']     = $full_country;
-    $args['country_code']= $country;
+    $args['country_code'] = $country;
 
     /**
 	 * Filters the address format replacements to use on Invoices.
@@ -655,14 +655,14 @@ 
 	 * @param array $replacements  The address replacements to use.
      * @param array $billing_details  The billing details to use.
 	 */
-    $replacements = apply_filters( 'wpinv_get_invoice_address_replacements', $args, $billing_details );
+    $replacements = apply_filters('wpinv_get_invoice_address_replacements', $args, $billing_details);
 
     $return = array();
 
-    foreach( $replacements as $key => $value ) {
-        $value  = is_scalar( $value ) ? trim( sanitize_text_field( $value ) ) : '';
+    foreach ($replacements as $key => $value) {
+        $value = is_scalar($value) ? trim(sanitize_text_field($value)) : '';
         $return['{{' . $key . '}}'] = $value;
-        $return['{{' . $key . '_upper}}'] = wpinv_utf8_strtoupper( $value );
+        $return['{{' . $key . '_upper}}'] = wpinv_utf8_strtoupper($value);
     }
 
     return $return;
@@ -676,6 +676,6 @@ 
  * @since 1.0.14
  * @return string
  */
-function wpinv_trim_formatted_address_line( $line ) {
-	return trim( $line, ', ' );
+function wpinv_trim_formatted_address_line($line) {
+	return trim($line, ', ');
 }
\ No newline at end of file

includes/deprecated-functions.php

Indentation +2 added lines, -2 removed lines

@@ -246,7 +246,7 @@ 
  * @deprecated
  */
 function wpinv_get_payment_key( $invoice = 0 ) {
-	$invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice( $invoice );
     return $invoice->get_key();
 }
 
@@ -424,7 +424,7 @@ 
  * @deprecated
  */
 function wpinv_get_checkout_session() {
-	return false;
+    return false;
 }
 
 /**

Spacing +75 added lines, -75 removed lines

@@ -6,7 +6,7 @@ 
  * @package Invoicing
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * @deprecated
@@ -19,48 +19,48 @@ 
  * @deprecated
  */
 function wpinv_get_invoice_cart() {
-    return wpinv_get_invoice( getpaid_get_current_invoice_id() );
+    return wpinv_get_invoice(getpaid_get_current_invoice_id());
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_invoice_description( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_invoice_description($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_description();
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_invoice_currency_code( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_invoice_currency_code($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_currency();
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_payment_user_email( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_payment_user_email($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_email();
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_user_id( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_user_id($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_user_id();
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_invoice_status( $invoice, $return_label = false ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_invoice_status($invoice, $return_label = false) {
+    $invoice = new WPInv_Invoice($invoice);
     
-    if ( $return_label ) {
+    if ($return_label) {
         return $invoice->get_status_nicename();
     }
 
@@ -70,10 +70,10 @@ 
 /**
  * @deprecated
  */
-function wpinv_get_payment_gateway( $invoice, $return_label = false ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_payment_gateway($invoice, $return_label = false) {
+    $invoice = new WPInv_Invoice($invoice);
 
-    if ( $return_label ) {
+    if ($return_label) {
         return $invoice->get_gateway_title();
     }
 
@@ -83,75 +83,75 @@ 
 /**
  * @deprecated
  */
-function wpinv_get_payment_gateway_name( $invoice ) {
-    return wpinv_get_payment_gateway( $invoice, true );
+function wpinv_get_payment_gateway_name($invoice) {
+    return wpinv_get_payment_gateway($invoice, true);
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_payment_transaction_id( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_payment_transaction_id($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_transaction_id();
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_invoice_meta( $invoice_id = 0, $meta_key = '_wpinv_payment_meta', $single = true ) {
-    $invoice = new WPInv_Invoice( $invoice_id );
-    return $invoice->get_meta( $meta_key, $single );
+function wpinv_get_invoice_meta($invoice_id = 0, $meta_key = '_wpinv_payment_meta', $single = true) {
+    $invoice = new WPInv_Invoice($invoice_id);
+    return $invoice->get_meta($meta_key, $single);
 }
 
 /**
  * @deprecated
  */
-function wpinv_update_invoice_meta( $invoice_id = 0, $meta_key = '', $meta_value = '' ) {
-    $invoice = new WPInv_Invoice( $invoice_id );
-    return $invoice->update_meta_data( $meta_key, $meta_value );
+function wpinv_update_invoice_meta($invoice_id = 0, $meta_key = '', $meta_value = '') {
+    $invoice = new WPInv_Invoice($invoice_id);
+    return $invoice->update_meta_data($meta_key, $meta_value);
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_items( $invoice = 0 ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_items($invoice = 0) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_items();
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_fees( $invoice = 0 ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_fees($invoice = 0) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_fees();
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_invoice_ip( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_invoice_ip($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_ip();
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_invoice_user_info( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_invoice_user_info($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_user_info();
 }
 
 /**
  * @deprecated
  */
-function wpinv_subtotal( $invoice = 0, $currency = false ) {
-    $invoice  = new WPInv_Invoice( $invoice );
+function wpinv_subtotal($invoice = 0, $currency = false) {
+    $invoice  = new WPInv_Invoice($invoice);
     $subtotal = $invoice->get_subtotal();
 
-    if ( $currency ) {
-        return wpinv_price( wpinv_format_amount( $subtotal ), $invoice->get_currency() );
+    if ($currency) {
+        return wpinv_price(wpinv_format_amount($subtotal), $invoice->get_currency());
     }
 
     return $subtotal;
@@ -160,12 +160,12 @@ 
 /**
  * @deprecated
  */
-function wpinv_tax( $invoice = 0, $currency = false ) {
-    $invoice  = new WPInv_Invoice( $invoice );
+function wpinv_tax($invoice = 0, $currency = false) {
+    $invoice  = new WPInv_Invoice($invoice);
     $tax      = $invoice->get_total_tax();
 
-    if ( $currency ) {
-        return wpinv_price( wpinv_format_amount( $tax ), $invoice->get_currency() );
+    if ($currency) {
+        return wpinv_price(wpinv_format_amount($tax), $invoice->get_currency());
     }
 
     return $tax;
@@ -174,12 +174,12 @@ 
 /**
  * @deprecated
  */
-function wpinv_discount( $invoice = 0, $currency = false, $deprecated ) {
-    $invoice  = new WPInv_Invoice( $invoice );
+function wpinv_discount($invoice = 0, $currency = false, $deprecated) {
+    $invoice  = new WPInv_Invoice($invoice);
     $discount = $invoice->get_total_discount();
 
-    if ( $currency ) {
-        return wpinv_price( wpinv_format_amount( $discount ), $invoice->get_currency() );
+    if ($currency) {
+        return wpinv_price(wpinv_format_amount($discount), $invoice->get_currency());
     }
 
     return $discount;
@@ -188,20 +188,20 @@ 
 /**
  * @deprecated
  */
-function wpinv_discount_code( $invoice = 0 ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_discount_code($invoice = 0) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_discount_code();
 }
 
 /**
  * @deprecated
  */
-function wpinv_payment_total( $invoice = 0, $currency = false ) {
-    $invoice  = new WPInv_Invoice( $invoice );
+function wpinv_payment_total($invoice = 0, $currency = false) {
+    $invoice = new WPInv_Invoice($invoice);
     $total = $invoice->get_total();
 
-    if ( $currency ) {
-        return wpinv_price( wpinv_format_amount( $total ), $invoice->get_currency() );
+    if ($currency) {
+        return wpinv_price(wpinv_format_amount($total), $invoice->get_currency());
     }
 
     return $total;
@@ -210,51 +210,51 @@ 
 /**
  * @deprecated
  */
-function wpinv_get_date_created( $invoice = 0, $format = '' ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_date_created($invoice = 0, $format = '') {
+    $invoice = new WPInv_Invoice($invoice);
 
-    $format         = ! empty( $format ) ? $format : get_option( 'date_format' );
+    $format         = !empty($format) ? $format : get_option('date_format');
     $date_created   = $invoice->get_created_date();
 
-    return empty( $date_created ) ? date_i18n( $format, strtotime( $date_created ) ) : '';
+    return empty($date_created) ? date_i18n($format, strtotime($date_created)) : '';
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_invoice_date( $invoice = 0, $format = '' ) {
-    wpinv_get_date_created( $invoice, $format );
+function wpinv_get_invoice_date($invoice = 0, $format = '') {
+    wpinv_get_date_created($invoice, $format);
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_invoice_vat_number( $invoice = 0 ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_invoice_vat_number($invoice = 0) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_vat_number();
 }
 
 /**
  * @deprecated
  */
-function wpinv_insert_payment_note( $invoice = 0, $note = '', $user_type = false, $added_by_user = false, $system = false ) {
-    $invoice = new WPInv_Invoice( $invoice );
-    return $invoice->add_note( $note, $user_type, $added_by_user, $system );
+function wpinv_insert_payment_note($invoice = 0, $note = '', $user_type = false, $added_by_user = false, $system = false) {
+    $invoice = new WPInv_Invoice($invoice);
+    return $invoice->add_note($note, $user_type, $added_by_user, $system);
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_payment_key( $invoice = 0 ) {
-	$invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_payment_key($invoice = 0) {
+	$invoice = new WPInv_Invoice($invoice);
     return $invoice->get_key();
 }
 
 /**
  * @deprecated
  */
-function wpinv_get_invoice_number( $invoice = 0 ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_get_invoice_number($invoice = 0) {
+    $invoice = new WPInv_Invoice($invoice);
     return $invoice->get_number();
 }
 
@@ -401,9 +401,9 @@ 
 /**
  * @deprecated
  */
-function wpinv_update_payment_status( $invoice, $new_status = 'publish' ) {    
-    $invoice = new WPInv_Invoice( $invoice );
-    return $invoice->update_status( $new_status );
+function wpinv_update_payment_status($invoice, $new_status = 'publish') {    
+    $invoice = new WPInv_Invoice($invoice);
+    return $invoice->update_status($new_status);
 }
 
 /**
@@ -456,22 +456,22 @@ 
 /**
  * @deprecated
  */
-function wpinv_set_payment_transaction_id( $invoice_id = 0, $transaction_id = '' ) {
+function wpinv_set_payment_transaction_id($invoice_id = 0, $transaction_id = '') {
 
     // Fetch the invoice.
-    $invoice = new WPInv_Invoice( $invoice_id );
+    $invoice = new WPInv_Invoice($invoice_id);
 
-    if ( 0 ==  $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return false;
     }
 
     // Prepare the transaction id.
-    if ( empty( $transaction_id ) ) {
+    if (empty($transaction_id)) {
         $transaction_id = $invoice_id;
     }
 
     // Set the transaction id;
-    $invoice->set_transaction_id( apply_filters( 'wpinv_set_payment_transaction_id', $transaction_id, $invoice ) );
+    $invoice->set_transaction_id(apply_filters('wpinv_set_payment_transaction_id', $transaction_id, $invoice));
 
     // Save the invoice.
     return $invoice->save();

includes/gateways/paypal.php

Spacing +280 added lines, -280 removed lines

@@ -1,15 +1,15 @@ 
 <?php
 // Exit if accessed directly
-if ( ! defined( 'ABSPATH' ) ) exit;
+if (!defined('ABSPATH')) exit;
 
-add_action( 'wpinv_paypal_cc_form', '__return_false' );
-add_filter( 'wpinv_paypal_support_subscription', '__return_true' );
+add_action('wpinv_paypal_cc_form', '__return_false');
+add_filter('wpinv_paypal_support_subscription', '__return_true');
 
 
-function wpinv_paypal_gateway_description_sandbox_notice( $description, $gateway ) {
-    if ( 'paypal' == $gateway && wpinv_is_test_mode( 'paypal' ) ) {
+function wpinv_paypal_gateway_description_sandbox_notice($description, $gateway) {
+    if ('paypal' == $gateway && wpinv_is_test_mode('paypal')) {
         $description .= '<br>' . sprintf(
-            __( 'SANDBOX ENABLED. You can use sandbox testing accounts only. See the %sPayPal Sandbox Testing Guide%s for more details.', 'invoicing' ),
+            __('SANDBOX ENABLED. You can use sandbox testing accounts only. See the %sPayPal Sandbox Testing Guide%s for more details.', 'invoicing'),
             '<a href="https://developer.paypal.com/docs/classic/lifecycle/ug_sandbox/">',
             '</a>'
         );
@@ -17,11 +17,11 @@ 
     return $description;
 
 }
-add_filter( 'wpinv_gateway_description', 'wpinv_paypal_gateway_description_sandbox_notice', 10, 2 );
+add_filter('wpinv_gateway_description', 'wpinv_paypal_gateway_description_sandbox_notice', 10, 2);
 
-function wpinv_process_paypal_payment( $purchase_data ) {
-    if( ! wp_verify_nonce( $purchase_data['gateway_nonce'], 'wpi-gateway' ) ) {
-        wp_die( __( 'Nonce verification has failed', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+function wpinv_process_paypal_payment($purchase_data) {
+    if (!wp_verify_nonce($purchase_data['gateway_nonce'], 'wpi-gateway')) {
+        wp_die(__('Nonce verification has failed', 'invoicing'), __('Error', 'invoicing'), array('response' => 403));
     }
 
     // Collect payment data
@@ -39,24 +39,24 @@ 
     );
 
     // Record the pending payment
-    $invoice = wpinv_get_invoice( $purchase_data['invoice_id'] );
+    $invoice = wpinv_get_invoice($purchase_data['invoice_id']);
 
     // Check payment
-    if ( ! $invoice ) {
+    if (!$invoice) {
         // Record the error
-        wpinv_record_gateway_error( __( 'Payment Error', 'invoicing' ), sprintf( __( 'Payment creation failed before sending buyer to PayPal. Payment data: %s', 'invoicing' ), json_encode( $payment_data ) ), $invoice );
+        wpinv_record_gateway_error(__('Payment Error', 'invoicing'), sprintf(__('Payment creation failed before sending buyer to PayPal. Payment data: %s', 'invoicing'), json_encode($payment_data)), $invoice);
         // Problems? send back
-        wpinv_send_back_to_checkout( '?payment-mode=' . $purchase_data['post_data']['wpi-gateway'] );
+        wpinv_send_back_to_checkout('?payment-mode=' . $purchase_data['post_data']['wpi-gateway']);
     } else {
         // Only send to PayPal if the pending payment is created successfully
-        $listener_url = wpinv_get_ipn_url( 'paypal' );
+        $listener_url = wpinv_get_ipn_url('paypal');
 
         // Get the success url
-        $return_url = add_query_arg( array(
+        $return_url = add_query_arg(array(
                 'payment-confirm' => 'paypal',
                 'invoice-id'      => $invoice->ID,
                 'utm_nooverride'  => 1
-            ), get_permalink( wpinv_get_option( 'success_page', false ) ) );
+            ), get_permalink(wpinv_get_option('success_page', false)));
 
         // Get the PayPal redirect uri
         $paypal_redirect = wpinv_get_paypal_redirect();
@@ -65,7 +65,7 @@ 
         $paypal_args = array(
             'cmd'           => '_cart',
             'upload'        => '1',
-            'business'      => wpinv_get_option( 'paypal_email', false ),
+            'business'      => wpinv_get_option('paypal_email', false),
             'email'         => $invoice->get_email(),
             'first_name'    => $invoice->get_first_name(),
             'last_name'     => $invoice->get_last_name(),
@@ -74,88 +74,88 @@ 
             'shipping'      => '0',
             'no_note'       => '1',
             'currency_code' => $invoice->get_currency(),
-            'charset'       => get_bloginfo( 'charset' ),
+            'charset'       => get_bloginfo('charset'),
             'custom'        => $invoice->ID,
             'rm'            => is_ssl() ? 2 : 1,
-            'return'        => esc_url_raw( $return_url ),
+            'return'        => esc_url_raw($return_url),
             'cancel_return' => $invoice->get_checkout_payment_url(),
             'notify_url'    => $listener_url,
-            'cbt'           => get_bloginfo( 'name' ),
+            'cbt'           => get_bloginfo('name'),
             'bn'            => 'WPInvoicing_SP',
         );
 
         // Add cart items
         $i = 1;
-        if( is_array( $purchase_data['cart_details'] ) && ! empty( $purchase_data['cart_details'] ) ) {
-            foreach ( $purchase_data['cart_details'] as $item ) {
+        if (is_array($purchase_data['cart_details']) && !empty($purchase_data['cart_details'])) {
+            foreach ($purchase_data['cart_details'] as $item) {
                 $item['quantity'] = $item['quantity'] > 0 ? $item['quantity'] : 1;
-                $item_amount = wpinv_sanitize_amount( $item['subtotal'] / $item['quantity'], 2 );
+                $item_amount = wpinv_sanitize_amount($item['subtotal'] / $item['quantity'], 2);
 
-                if ( $item_amount <= 0 ) {
+                if ($item_amount <= 0) {
                     $item_amount = 0;
                 }
 
-                $paypal_args['item_number_' . $i ]      = $item['id'];
-                $paypal_args['item_name_' . $i ]        = stripslashes_deep( html_entity_decode( wpinv_get_cart_item_name( $item ), ENT_COMPAT, 'UTF-8' ) );
-                $paypal_args['quantity_' . $i ]         = $item['quantity'];
-                $paypal_args['amount_' . $i ]           = $item_amount;
-                $paypal_args['discount_amount_' . $i ]  = wpinv_sanitize_amount( $item['discount'], 2 );
+                $paypal_args['item_number_' . $i]      = $item['id'];
+                $paypal_args['item_name_' . $i]        = stripslashes_deep(html_entity_decode(wpinv_get_cart_item_name($item), ENT_COMPAT, 'UTF-8'));
+                $paypal_args['quantity_' . $i]         = $item['quantity'];
+                $paypal_args['amount_' . $i]           = $item_amount;
+                $paypal_args['discount_amount_' . $i]  = wpinv_sanitize_amount($item['discount'], 2);
 
                 $i++;
             }
         }
 
         // Add taxes to the cart
-        if ( wpinv_use_taxes() && $invoice->is_taxable() ) {
-            $paypal_args['tax_cart'] = wpinv_sanitize_amount( (float) $invoice->get_tax(), 2 );
+        if (wpinv_use_taxes() && $invoice->is_taxable()) {
+            $paypal_args['tax_cart'] = wpinv_sanitize_amount((float) $invoice->get_tax(), 2);
         }
 
-        $paypal_args = apply_filters( 'wpinv_paypal_args', $paypal_args, $purchase_data, $invoice );
+        $paypal_args = apply_filters('wpinv_paypal_args', $paypal_args, $purchase_data, $invoice);
 
         // Build query
-        $paypal_redirect .= http_build_query( $paypal_args );
+        $paypal_redirect .= http_build_query($paypal_args);
 
         // Fix for some sites that encode the entities
-        $paypal_redirect = str_replace( '&amp;', '&', $paypal_redirect );
+        $paypal_redirect = str_replace('&amp;', '&', $paypal_redirect);
 
         // Get rid of cart contents
         wpinv_empty_cart();
         
         // Redirect to PayPal
-        wp_redirect( $paypal_redirect );
+        wp_redirect($paypal_redirect);
         exit;
     }
 }
-add_action( 'wpinv_gateway_paypal', 'wpinv_process_paypal_payment' );
+add_action('wpinv_gateway_paypal', 'wpinv_process_paypal_payment');
 
-function wpinv_get_paypal_recurring_args( $paypal_args, $purchase_data, $invoice ) {
-    if ( $invoice->is_recurring() && $subscription = wpinv_get_subscription( $invoice->ID ) ) {
+function wpinv_get_paypal_recurring_args($paypal_args, $purchase_data, $invoice) {
+    if ($invoice->is_recurring() && $subscription = wpinv_get_subscription($invoice->ID)) {
 
-        $period             = strtoupper( substr( $subscription->period, 0, 1) );
+        $period             = strtoupper(substr($subscription->period, 0, 1));
         $interval           = $subscription->frequency;
         $bill_times         = (int) $subscription->bill_times;
         
-        $initial_amount     = wpinv_sanitize_amount( $invoice->get_total(), 2 );
-        $recurring_amount   = wpinv_sanitize_amount( $invoice->get_recurring_details( 'total' ), 2 );
+        $initial_amount     = wpinv_sanitize_amount($invoice->get_total(), 2);
+        $recurring_amount   = wpinv_sanitize_amount($invoice->get_recurring_details('total'), 2);
         
         $paypal_args['cmd'] = '_xclick-subscriptions';
         $paypal_args['sra'] = '1';
         $paypal_args['src'] = '1';
         
         // Set item description
-        $item_name                  = wpinv_get_cart_item_name( array( 'id' => $subscription->product_id ) );
-        $paypal_args['item_name']   = stripslashes_deep( html_entity_decode( $item_name, ENT_COMPAT, 'UTF-8' ) );
+        $item_name                  = wpinv_get_cart_item_name(array('id' => $subscription->product_id));
+        $paypal_args['item_name']   = stripslashes_deep(html_entity_decode($item_name, ENT_COMPAT, 'UTF-8'));
         $paypal_args['item_number'] = $subscription->product_id;
-        $item   = new WPInv_Item( $subscription->period );
+        $item = new WPInv_Item($subscription->period);
 
-        if ( $invoice->is_free_trial() && $item->has_free_trial() ) {
+        if ($invoice->is_free_trial() && $item->has_free_trial()) {
             $paypal_args['a1']  = $initial_amount;
             $paypal_args['p1']  = $item->get_trial_interval();
             $paypal_args['t1']  = $item->get_trial_period();
             
             // Set the recurring amount
             $paypal_args['a3']  = $recurring_amount;
-        } else if ( $initial_amount != $recurring_amount && $bill_times != 1 ) {
+        } else if ($initial_amount != $recurring_amount && $bill_times != 1) {
             $paypal_args['a1']  = $initial_amount;
             $paypal_args['p1']  = $interval;
             $paypal_args['t1']  = $period;
@@ -163,63 +163,63 @@ 
             // Set the recurring amount
             $paypal_args['a3']  = $recurring_amount;
             
-            if ( $bill_times > 1 ) {
+            if ($bill_times > 1) {
                 $bill_times--;
             }
         } else {
-            $paypal_args['a3']  = $initial_amount;
+            $paypal_args['a3'] = $initial_amount;
         }
         
         $paypal_args['p3']  = $interval;
         $paypal_args['t3']  = $period;
         
-        if ( $bill_times > 1 ) {
+        if ($bill_times > 1) {
             // Make sure it's not over the max of 52
-            $paypal_args['srt'] = ( $bill_times <= 52 ? absint( $bill_times ) : 52 );
+            $paypal_args['srt'] = ($bill_times <= 52 ? absint($bill_times) : 52);
         }
                 
         // Remove cart items
         $i = 1;
-        if( is_array( $purchase_data['cart_details'] ) && ! empty( $purchase_data['cart_details'] ) ) {
-            foreach ( $purchase_data['cart_details'] as $item ) {                
-                if ( isset( $paypal_args['item_number_' . $i] ) ) {
-                    unset( $paypal_args['item_number_' . $i] );
+        if (is_array($purchase_data['cart_details']) && !empty($purchase_data['cart_details'])) {
+            foreach ($purchase_data['cart_details'] as $item) {                
+                if (isset($paypal_args['item_number_' . $i])) {
+                    unset($paypal_args['item_number_' . $i]);
                 }
-                if ( isset( $paypal_args['item_name_' . $i] ) ) {
-                    unset( $paypal_args['item_name_' . $i] );
+                if (isset($paypal_args['item_name_' . $i])) {
+                    unset($paypal_args['item_name_' . $i]);
                 }
-                if ( isset( $paypal_args['quantity_' . $i] ) ) {
-                    unset( $paypal_args['quantity_' . $i] );
+                if (isset($paypal_args['quantity_' . $i])) {
+                    unset($paypal_args['quantity_' . $i]);
                 }
-                if ( isset( $paypal_args['amount_' . $i] ) ) {
-                    unset( $paypal_args['amount_' . $i] );
+                if (isset($paypal_args['amount_' . $i])) {
+                    unset($paypal_args['amount_' . $i]);
                 }
-                if ( isset( $paypal_args['discount_amount_' . $i] ) ) {
-                    unset( $paypal_args['discount_amount_' . $i] );
+                if (isset($paypal_args['discount_amount_' . $i])) {
+                    unset($paypal_args['discount_amount_' . $i]);
                 }
 
                 $i++;
             }
         }
         
-        if ( isset( $paypal_args['tax_cart'] ) ) {
-            unset( $paypal_args['tax_cart'] );
+        if (isset($paypal_args['tax_cart'])) {
+            unset($paypal_args['tax_cart']);
         }
                 
-        if ( isset( $paypal_args['upload'] ) ) {
-            unset( $paypal_args['upload'] );
+        if (isset($paypal_args['upload'])) {
+            unset($paypal_args['upload']);
         }
         
-        $paypal_args = apply_filters( 'wpinv_paypal_recurring_args', $paypal_args, $purchase_data, $invoice );
+        $paypal_args = apply_filters('wpinv_paypal_recurring_args', $paypal_args, $purchase_data, $invoice);
     }
     
     return $paypal_args;
 }
-add_filter( 'wpinv_paypal_args', 'wpinv_get_paypal_recurring_args', 10, 3 );
+add_filter('wpinv_paypal_args', 'wpinv_get_paypal_recurring_args', 10, 3);
 
 function wpinv_process_paypal_ipn() {
 	// Check the request method is POST
-	if ( isset( $_SERVER['REQUEST_METHOD'] ) && $_SERVER['REQUEST_METHOD'] != 'POST' ) {
+	if (isset($_SERVER['REQUEST_METHOD']) && $_SERVER['REQUEST_METHOD'] != 'POST') {
 		return;
 	}
 
@@ -227,11 +227,11 @@ 
 	$post_data = '';
 
 	// Fallback just in case post_max_size is lower than needed
-	if ( ini_get( 'allow_url_fopen' ) ) {
-		$post_data = file_get_contents( 'php://input' );
+	if (ini_get('allow_url_fopen')) {
+		$post_data = file_get_contents('php://input');
 	} else {
 		// If allow_url_fopen is not enabled, then make sure that post_max_size is large enough
-		ini_set( 'post_max_size', '12M' );
+		ini_set('post_max_size', '12M');
 	}
 	// Start the encoded data collection with notification command
 	$encoded_data = 'cmd=_notify-validate';
@@ -240,43 +240,43 @@ 
 	$arg_separator = wpinv_get_php_arg_separator_output();
 
 	// Verify there is a post_data
-	if ( $post_data || strlen( $post_data ) > 0 ) {
+	if ($post_data || strlen($post_data) > 0) {
 		// Append the data
-		$encoded_data .= $arg_separator.$post_data;
+		$encoded_data .= $arg_separator . $post_data;
 	} else {
 		// Check if POST is empty
-		if ( empty( $_POST ) ) {
+		if (empty($_POST)) {
 			// Nothing to do
 			return;
 		} else {
 			// Loop through each POST
-			foreach ( $_POST as $key => $value ) {
+			foreach ($_POST as $key => $value) {
 				// Encode the value and append the data
-				$encoded_data .= $arg_separator."$key=" . urlencode( $value );
+				$encoded_data .= $arg_separator . "$key=" . urlencode($value);
 			}
 		}
 	}
 
 	// Convert collected post data to an array
-	wp_parse_str( $encoded_data, $encoded_data_array );
+	wp_parse_str($encoded_data, $encoded_data_array);
 
-	foreach ( $encoded_data_array as $key => $value ) {
-		if ( false !== strpos( $key, 'amp;' ) ) {
-			$new_key = str_replace( '&amp;', '&', $key );
-			$new_key = str_replace( 'amp;', '&' , $new_key );
+	foreach ($encoded_data_array as $key => $value) {
+		if (false !== strpos($key, 'amp;')) {
+			$new_key = str_replace('&amp;', '&', $key);
+			$new_key = str_replace('amp;', '&', $new_key);
 
-			unset( $encoded_data_array[ $key ] );
-			$encoded_data_array[ $new_key ] = $value;
+			unset($encoded_data_array[$key]);
+			$encoded_data_array[$new_key] = $value;
 		}
 	}
 
 	// Get the PayPal redirect uri
-	$paypal_redirect = wpinv_get_paypal_redirect( true );
+	$paypal_redirect = wpinv_get_paypal_redirect(true);
 
-	if ( !wpinv_get_option( 'disable_paypal_verification', false ) ) {
+	if (!wpinv_get_option('disable_paypal_verification', false)) {
 		// Validate the IPN
 
-		$remote_post_vars      = array(
+		$remote_post_vars = array(
 			'method'           => 'POST',
 			'timeout'          => 45,
 			'redirection'      => 5,
@@ -294,21 +294,21 @@ 
 		);
 
 		// Get response
-		$api_response = wp_remote_post( wpinv_get_paypal_redirect(), $remote_post_vars );
+		$api_response = wp_remote_post(wpinv_get_paypal_redirect(), $remote_post_vars);
 
-		if ( is_wp_error( $api_response ) ) {
-			wpinv_record_gateway_error( __( 'IPN Error', 'invoicing' ), sprintf( __( 'Invalid IPN verification response. IPN data: %s', 'invoicing' ), json_encode( $api_response ) ) );
+		if (is_wp_error($api_response)) {
+			wpinv_record_gateway_error(__('IPN Error', 'invoicing'), sprintf(__('Invalid IPN verification response. IPN data: %s', 'invoicing'), json_encode($api_response)));
 			return; // Something went wrong
 		}
 
-		if ( $api_response['body'] !== 'VERIFIED' && wpinv_get_option( 'disable_paypal_verification', false ) ) {
-			wpinv_record_gateway_error( __( 'IPN Error', 'invoicing' ), sprintf( __( 'Invalid IPN verification response. IPN data: %s', 'invoicing' ), json_encode( $api_response ) ) );
+		if ($api_response['body'] !== 'VERIFIED' && wpinv_get_option('disable_paypal_verification', false)) {
+			wpinv_record_gateway_error(__('IPN Error', 'invoicing'), sprintf(__('Invalid IPN verification response. IPN data: %s', 'invoicing'), json_encode($api_response)));
 			return; // Response not okay
 		}
 	}
 
 	// Check if $post_data_array has been populated
-	if ( !is_array( $encoded_data_array ) && !empty( $encoded_data_array ) )
+	if (!is_array($encoded_data_array) && !empty($encoded_data_array))
 		return;
 
 	$defaults = array(
@@ -316,265 +316,265 @@ 
 		'payment_status' => ''
 	);
 
-	$encoded_data_array = wp_parse_args( $encoded_data_array, $defaults );
+	$encoded_data_array = wp_parse_args($encoded_data_array, $defaults);
 
-	$invoice_id = isset( $encoded_data_array['custom'] ) ? absint( $encoded_data_array['custom'] ) : 0;
+	$invoice_id = isset($encoded_data_array['custom']) ? absint($encoded_data_array['custom']) : 0;
     
-	wpinv_error_log( $encoded_data_array['txn_type'], 'PayPal txn_type', __FILE__, __LINE__ );
-	wpinv_error_log( $encoded_data_array, 'PayPal IPN response', __FILE__, __LINE__ );
+	wpinv_error_log($encoded_data_array['txn_type'], 'PayPal txn_type', __FILE__, __LINE__);
+	wpinv_error_log($encoded_data_array, 'PayPal IPN response', __FILE__, __LINE__);
 
-	if ( has_action( 'wpinv_paypal_' . $encoded_data_array['txn_type'] ) ) {
+	if (has_action('wpinv_paypal_' . $encoded_data_array['txn_type'])) {
 		// Allow PayPal IPN types to be processed separately
-		do_action( 'wpinv_paypal_' . $encoded_data_array['txn_type'], $encoded_data_array, $invoice_id );
+		do_action('wpinv_paypal_' . $encoded_data_array['txn_type'], $encoded_data_array, $invoice_id);
 	} else {
 		// Fallback to web accept just in case the txn_type isn't present
-		do_action( 'wpinv_paypal_web_accept', $encoded_data_array, $invoice_id );
+		do_action('wpinv_paypal_web_accept', $encoded_data_array, $invoice_id);
 	}
 	exit;
 }
-add_action( 'wpinv_verify_paypal_ipn', 'wpinv_process_paypal_ipn' );
+add_action('wpinv_verify_paypal_ipn', 'wpinv_process_paypal_ipn');
 
-function wpinv_process_paypal_web_accept_and_cart( $data, $invoice_id ) {
-	if ( $data['txn_type'] != 'web_accept' && $data['txn_type'] != 'cart' && $data['payment_status'] != 'Refunded' ) {
+function wpinv_process_paypal_web_accept_and_cart($data, $invoice_id) {
+	if ($data['txn_type'] != 'web_accept' && $data['txn_type'] != 'cart' && $data['payment_status'] != 'Refunded') {
 		return;
 	}
 
-	if( empty( $invoice_id ) ) {
+	if (empty($invoice_id)) {
 		return;
 	}
 
 	// Collect payment details
-	$purchase_key   = isset( $data['invoice'] ) ? $data['invoice'] : $data['item_number'];
+	$purchase_key   = isset($data['invoice']) ? $data['invoice'] : $data['item_number'];
 	$paypal_amount  = $data['mc_gross'];
-	$payment_status = strtolower( $data['payment_status'] );
-	$currency_code  = strtolower( $data['mc_currency'] );
-	$business_email = isset( $data['business'] ) && is_email( $data['business'] ) ? trim( $data['business'] ) : trim( $data['receiver_email'] );
-	$payment_meta   = wpinv_get_invoice_meta( $invoice_id );
+	$payment_status = strtolower($data['payment_status']);
+	$currency_code  = strtolower($data['mc_currency']);
+	$business_email = isset($data['business']) && is_email($data['business']) ? trim($data['business']) : trim($data['receiver_email']);
+	$payment_meta   = wpinv_get_invoice_meta($invoice_id);
 
-	if ( wpinv_get_payment_gateway( $invoice_id ) != 'paypal' ) {
+	if (wpinv_get_payment_gateway($invoice_id) != 'paypal') {
 		return; // this isn't a PayPal standard IPN
 	}
 
 	// Verify payment recipient
-	if ( strcasecmp( $business_email, trim( wpinv_get_option( 'paypal_email', false ) ) ) != 0 ) {
-		wpinv_record_gateway_error( __( 'IPN Error', 'invoicing' ), sprintf( __( 'Invalid business email in IPN response. IPN data: %s', 'invoicing' ), json_encode( $data ) ), $invoice_id );
-		wpinv_update_payment_status( $invoice_id, 'wpi-failed' );
-		wpinv_insert_payment_note( $invoice_id, __( 'Payment failed due to invalid PayPal business email.', 'invoicing' ), '', '', true );
+	if (strcasecmp($business_email, trim(wpinv_get_option('paypal_email', false))) != 0) {
+		wpinv_record_gateway_error(__('IPN Error', 'invoicing'), sprintf(__('Invalid business email in IPN response. IPN data: %s', 'invoicing'), json_encode($data)), $invoice_id);
+		wpinv_update_payment_status($invoice_id, 'wpi-failed');
+		wpinv_insert_payment_note($invoice_id, __('Payment failed due to invalid PayPal business email.', 'invoicing'), '', '', true);
 		return;
 	}
 
 	// Verify payment currency
-	if ( $currency_code != strtolower( $payment_meta['currency'] ) ) {
-		wpinv_record_gateway_error( __( 'IPN Error', 'invoicing' ), sprintf( __( 'Invalid currency in IPN response. IPN data: %s', 'invoicing' ), json_encode( $data ) ), $invoice_id );
-		wpinv_update_payment_status( $invoice_id, 'wpi-failed' );
-		wpinv_insert_payment_note( $invoice_id, __( 'Payment failed due to invalid currency in PayPal IPN.', 'invoicing' ), '', '', true );
+	if ($currency_code != strtolower($payment_meta['currency'])) {
+		wpinv_record_gateway_error(__('IPN Error', 'invoicing'), sprintf(__('Invalid currency in IPN response. IPN data: %s', 'invoicing'), json_encode($data)), $invoice_id);
+		wpinv_update_payment_status($invoice_id, 'wpi-failed');
+		wpinv_insert_payment_note($invoice_id, __('Payment failed due to invalid currency in PayPal IPN.', 'invoicing'), '', '', true);
 		return;
 	}
 
-	if ( !wpinv_get_payment_user_email( $invoice_id ) ) {
+	if (!wpinv_get_payment_user_email($invoice_id)) {
 		// This runs when a Buy Now purchase was made. It bypasses checkout so no personal info is collected until PayPal
 		// No email associated with purchase, so store from PayPal
-		wpinv_update_invoice_meta( $invoice_id, '_wpinv_email', $data['payer_email'] );
+		wpinv_update_invoice_meta($invoice_id, '_wpinv_email', $data['payer_email']);
 
 		// Setup and store the customer's details
 		$user_info = array(
 			'user_id'    => '-1',
-			'email'      => sanitize_text_field( $data['payer_email'] ),
-			'first_name' => sanitize_text_field( $data['first_name'] ),
-			'last_name'  => sanitize_text_field( $data['last_name'] ),
+			'email'      => sanitize_text_field($data['payer_email']),
+			'first_name' => sanitize_text_field($data['first_name']),
+			'last_name'  => sanitize_text_field($data['last_name']),
 			'discount'   => '',
 		);
-		$user_info['address'] = ! empty( $data['address_street']       ) ? sanitize_text_field( $data['address_street'] )       : false;
-		$user_info['city']    = ! empty( $data['address_city']         ) ? sanitize_text_field( $data['address_city'] )         : false;
-		$user_info['state']   = ! empty( $data['address_state']        ) ? sanitize_text_field( $data['address_state'] )        : false;
-		$user_info['country'] = ! empty( $data['address_country_code'] ) ? sanitize_text_field( $data['address_country_code'] ) : false;
-		$user_info['zip']     = ! empty( $data['address_zip']          ) ? sanitize_text_field( $data['address_zip'] )          : false;
+		$user_info['address'] = !empty($data['address_street']) ? sanitize_text_field($data['address_street']) : false;
+		$user_info['city']    = !empty($data['address_city']) ? sanitize_text_field($data['address_city']) : false;
+		$user_info['state']   = !empty($data['address_state']) ? sanitize_text_field($data['address_state']) : false;
+		$user_info['country'] = !empty($data['address_country_code']) ? sanitize_text_field($data['address_country_code']) : false;
+		$user_info['zip']     = !empty($data['address_zip']) ? sanitize_text_field($data['address_zip']) : false;
 
 		$payment_meta['user_info'] = $user_info;
-		wpinv_update_invoice_meta( $invoice_id, '_wpinv_payment_meta', $payment_meta );
+		wpinv_update_invoice_meta($invoice_id, '_wpinv_payment_meta', $payment_meta);
 	}
 
-	if ( $payment_status == 'refunded' || $payment_status == 'reversed' ) {
+	if ($payment_status == 'refunded' || $payment_status == 'reversed') {
 		// Process a refund
-		wpinv_process_paypal_refund( $data, $invoice_id );
+		wpinv_process_paypal_refund($data, $invoice_id);
 	} else {
-		if ( get_post_status( $invoice_id ) == 'publish' ) {
+		if (get_post_status($invoice_id) == 'publish') {
 			return; // Only paid payments once
 		}
 
 		// Retrieve the total purchase amount (before PayPal)
-		$payment_amount = wpinv_payment_total( $invoice_id );
+		$payment_amount = wpinv_payment_total($invoice_id);
 
-		if ( number_format( (float) $paypal_amount, 2 ) < number_format( (float) $payment_amount, 2 ) ) {
+		if (number_format((float) $paypal_amount, 2) < number_format((float) $payment_amount, 2)) {
 			// The prices don't match
-			wpinv_record_gateway_error( __( 'IPN Error', 'invoicing' ), sprintf( __( 'Invalid payment amount in IPN response. IPN data: %s', 'invoicing' ), json_encode( $data ) ), $invoice_id );
-			wpinv_update_payment_status( $invoice_id, 'wpi-failed' );
-			wpinv_insert_payment_note( $invoice_id, __( 'Payment failed due to invalid amount in PayPal IPN.', 'invoicing' ), '', '', true );
+			wpinv_record_gateway_error(__('IPN Error', 'invoicing'), sprintf(__('Invalid payment amount in IPN response. IPN data: %s', 'invoicing'), json_encode($data)), $invoice_id);
+			wpinv_update_payment_status($invoice_id, 'wpi-failed');
+			wpinv_insert_payment_note($invoice_id, __('Payment failed due to invalid amount in PayPal IPN.', 'invoicing'), '', '', true);
 			return;
 		}
-		if ( $purchase_key != wpinv_get_payment_key( $invoice_id ) ) {
+		if ($purchase_key != wpinv_get_payment_key($invoice_id)) {
 			// Purchase keys don't match
-			wpinv_record_gateway_error( __( 'IPN Error', 'invoicing' ), sprintf( __( 'Invalid purchase key in IPN response. IPN data: %s', 'invoicing' ), json_encode( $data ) ), $invoice_id );
-			wpinv_update_payment_status( $invoice_id, 'wpi-failed' );
-			wpinv_insert_payment_note( $invoice_id, __( 'Payment failed due to invalid purchase key in PayPal IPN.', 'invoicing' ), '', '', true );
+			wpinv_record_gateway_error(__('IPN Error', 'invoicing'), sprintf(__('Invalid purchase key in IPN response. IPN data: %s', 'invoicing'), json_encode($data)), $invoice_id);
+			wpinv_update_payment_status($invoice_id, 'wpi-failed');
+			wpinv_insert_payment_note($invoice_id, __('Payment failed due to invalid purchase key in PayPal IPN.', 'invoicing'), '', '', true);
 			return;
 		}
 
-		if ( 'complete' == $payment_status || 'completed' == $payment_status || 'processed' == $payment_status || wpinv_is_test_mode( 'paypal' ) ) {
-			wpinv_insert_payment_note( $invoice_id, sprintf( __( 'PayPal Transaction ID: %s', 'invoicing' ) , $data['txn_id'] ), '', '', true );
-			wpinv_set_payment_transaction_id( $invoice_id, $data['txn_id'] );
-			wpinv_update_payment_status( $invoice_id, 'publish' );
-		} else if ( 'pending' == $payment_status && isset( $data['pending_reason'] ) ) {
+		if ('complete' == $payment_status || 'completed' == $payment_status || 'processed' == $payment_status || wpinv_is_test_mode('paypal')) {
+			wpinv_insert_payment_note($invoice_id, sprintf(__('PayPal Transaction ID: %s', 'invoicing'), $data['txn_id']), '', '', true);
+			wpinv_set_payment_transaction_id($invoice_id, $data['txn_id']);
+			wpinv_update_payment_status($invoice_id, 'publish');
+		} else if ('pending' == $payment_status && isset($data['pending_reason'])) {
 			// Look for possible pending reasons, such as an echeck
 			$note = '';
 
-			switch( strtolower( $data['pending_reason'] ) ) {
+			switch (strtolower($data['pending_reason'])) {
 				case 'echeck' :
-					$note = __( 'Payment made via eCheck and will clear automatically in 5-8 days', 'invoicing' );
+					$note = __('Payment made via eCheck and will clear automatically in 5-8 days', 'invoicing');
 					break;
 				
                 case 'address' :
-					$note = __( 'Payment requires a confirmed customer address and must be accepted manually through PayPal', 'invoicing' );
+					$note = __('Payment requires a confirmed customer address and must be accepted manually through PayPal', 'invoicing');
 					break;
 				
                 case 'intl' :
-					$note = __( 'Payment must be accepted manually through PayPal due to international account regulations', 'invoicing' );
+					$note = __('Payment must be accepted manually through PayPal due to international account regulations', 'invoicing');
 					break;
 				
                 case 'multi-currency' :
-					$note = __( 'Payment received in non-shop currency and must be accepted manually through PayPal', 'invoicing' );
+					$note = __('Payment received in non-shop currency and must be accepted manually through PayPal', 'invoicing');
 					break;
 				
                 case 'paymentreview' :
                 case 'regulatory_review' :
-					$note = __( 'Payment is being reviewed by PayPal staff as high-risk or in possible violation of government regulations', 'invoicing' );
+					$note = __('Payment is being reviewed by PayPal staff as high-risk or in possible violation of government regulations', 'invoicing');
 					break;
 				
                 case 'unilateral' :
-					$note = __( 'Payment was sent to non-confirmed or non-registered email address.', 'invoicing' );
+					$note = __('Payment was sent to non-confirmed or non-registered email address.', 'invoicing');
 					break;
 				
                 case 'upgrade' :
-					$note = __( 'PayPal account must be upgraded before this payment can be accepted', 'invoicing' );
+					$note = __('PayPal account must be upgraded before this payment can be accepted', 'invoicing');
 					break;
 				
                 case 'verify' :
-					$note = __( 'PayPal account is not verified. Verify account in order to accept this payment', 'invoicing' );
+					$note = __('PayPal account is not verified. Verify account in order to accept this payment', 'invoicing');
 					break;
 
 				case 'other' :
-					$note = __( 'Payment is pending for unknown reasons. Contact PayPal support for assistance', 'invoicing' );
+					$note = __('Payment is pending for unknown reasons. Contact PayPal support for assistance', 'invoicing');
 					break;
 			}
 
-			if ( ! empty( $note ) ) {
-				wpinv_insert_payment_note( $invoice_id, $note, '', '', true );
+			if (!empty($note)) {
+				wpinv_insert_payment_note($invoice_id, $note, '', '', true);
 			}
 		} else {
-			wpinv_insert_payment_note( $invoice_id, wp_sprintf( __( 'PayPal IPN has been received with invalid payment status: %s', 'invoicing' ), $payment_status ), '', '', true );
+			wpinv_insert_payment_note($invoice_id, wp_sprintf(__('PayPal IPN has been received with invalid payment status: %s', 'invoicing'), $payment_status), '', '', true);
 		}
 	}
 }
-add_action( 'wpinv_paypal_web_accept', 'wpinv_process_paypal_web_accept_and_cart', 10, 2 );
+add_action('wpinv_paypal_web_accept', 'wpinv_process_paypal_web_accept_and_cart', 10, 2);
 
 // Process PayPal subscription sign ups
-add_action( 'wpinv_paypal_subscr_signup', 'wpinv_process_paypal_subscr_signup' );
+add_action('wpinv_paypal_subscr_signup', 'wpinv_process_paypal_subscr_signup');
 
 // Process PayPal subscription payments
-add_action( 'wpinv_paypal_subscr_payment', 'wpinv_process_paypal_subscr_payment' );
+add_action('wpinv_paypal_subscr_payment', 'wpinv_process_paypal_subscr_payment');
 
 // Process PayPal subscription cancellations
-add_action( 'wpinv_paypal_subscr_cancel', 'wpinv_process_paypal_subscr_cancel' );
+add_action('wpinv_paypal_subscr_cancel', 'wpinv_process_paypal_subscr_cancel');
 
 // Process PayPal subscription end of term notices
-add_action( 'wpinv_paypal_subscr_eot', 'wpinv_process_paypal_subscr_eot' );
+add_action('wpinv_paypal_subscr_eot', 'wpinv_process_paypal_subscr_eot');
 
 // Process PayPal payment failed
-add_action( 'wpinv_paypal_subscr_failed', 'wpinv_process_paypal_subscr_failed' );
+add_action('wpinv_paypal_subscr_failed', 'wpinv_process_paypal_subscr_failed');
 
 
 /**
  * Process the subscription started IPN.
  */
-function wpinv_process_paypal_subscr_signup( $ipn_data ) {
-    $parent_invoice_id = absint( $ipn_data['custom'] );
-    if( empty( $parent_invoice_id ) ) {
+function wpinv_process_paypal_subscr_signup($ipn_data) {
+    $parent_invoice_id = absint($ipn_data['custom']);
+    if (empty($parent_invoice_id)) {
         return;
     }
 
-    $invoice = wpinv_get_invoice( $parent_invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($parent_invoice_id);
+    if (empty($invoice)) {
         return;
     }
 
-    if ( $invoice->is_free_trial() && !empty( $ipn_data['invoice'] ) ) {
-        wpinv_insert_payment_note( $parent_invoice_id, sprintf( __( 'PayPal Invoice ID: %s', 'invoicing' ) , $ipn_data['invoice'] ), '', '', true);
-        if ( !empty( $ipn_data['txn_id'] ) ) {
-            wpinv_set_payment_transaction_id( $parent_invoice_id, $ipn_data['txn_id'] );
+    if ($invoice->is_free_trial() && !empty($ipn_data['invoice'])) {
+        wpinv_insert_payment_note($parent_invoice_id, sprintf(__('PayPal Invoice ID: %s', 'invoicing'), $ipn_data['invoice']), '', '', true);
+        if (!empty($ipn_data['txn_id'])) {
+            wpinv_set_payment_transaction_id($parent_invoice_id, $ipn_data['txn_id']);
         }
     }
 
-    $subscription = wpinv_get_paypal_subscription( $ipn_data );
-    if ( false === $subscription ) {
+    $subscription = wpinv_get_paypal_subscription($ipn_data);
+    if (false === $subscription) {
         return;
     }
     
-    wpinv_update_payment_status( $parent_invoice_id, 'publish' );
+    wpinv_update_payment_status($parent_invoice_id, 'publish');
     sleep(1);
-    wpinv_insert_payment_note( $parent_invoice_id, sprintf( __( 'PayPal Subscription ID: %s', 'invoicing' ) , $ipn_data['subscr_id'] ), '', '', true );
-    update_post_meta($parent_invoice_id,'_wpinv_subscr_profile_id', $ipn_data['subscr_id']);
+    wpinv_insert_payment_note($parent_invoice_id, sprintf(__('PayPal Subscription ID: %s', 'invoicing'), $ipn_data['subscr_id']), '', '', true);
+    update_post_meta($parent_invoice_id, '_wpinv_subscr_profile_id', $ipn_data['subscr_id']);
 
     $status     = 'trialling' == $subscription->status ? 'trialling' : 'active';
-    $diff_days  = absint( ( ( strtotime( $subscription->expiration ) - strtotime( $subscription->created ) ) / DAY_IN_SECONDS ) );
-    $created    = date_i18n( 'Y-m-d H:i:s' );
-    $expiration = date_i18n( 'Y-m-d 23:59:59', ( strtotime( $created ) + ( $diff_days * DAY_IN_SECONDS ) ) );
+    $diff_days  = absint(((strtotime($subscription->expiration) - strtotime($subscription->created)) / DAY_IN_SECONDS));
+    $created    = date_i18n('Y-m-d H:i:s');
+    $expiration = date_i18n('Y-m-d 23:59:59', (strtotime($created) + ($diff_days * DAY_IN_SECONDS)));
 
     // Retrieve pending subscription from database and update it's status to active and set proper profile ID
-    $subscription->update( array( 'profile_id' => $ipn_data['subscr_id'], 'status' => $status, 'created' => $created, 'expiration' => $expiration ) );
+    $subscription->update(array('profile_id' => $ipn_data['subscr_id'], 'status' => $status, 'created' => $created, 'expiration' => $expiration));
 }
 
 /**
  * Process the subscription payment received IPN.
  */
-function wpinv_process_paypal_subscr_payment( $ipn_data ) {
-    $parent_invoice_id = absint( $ipn_data['custom'] );
+function wpinv_process_paypal_subscr_payment($ipn_data) {
+    $parent_invoice_id = absint($ipn_data['custom']);
 
-    $parent_invoice = wpinv_get_invoice( $parent_invoice_id );
-    if ( empty( $parent_invoice ) ) {
+    $parent_invoice = wpinv_get_invoice($parent_invoice_id);
+    if (empty($parent_invoice)) {
         return;
     }
 
-    $subscription = wpinv_get_paypal_subscription( $ipn_data );
-    if ( false === $subscription ) {
+    $subscription = wpinv_get_paypal_subscription($ipn_data);
+    if (false === $subscription) {
         return;
     }
 
-    $transaction_id = wpinv_get_payment_transaction_id( $parent_invoice_id );
+    $transaction_id = wpinv_get_payment_transaction_id($parent_invoice_id);
     $times_billed   = $subscription->get_times_billed();
-    $signup_date    = strtotime( $subscription->created );
-    $today          = date( 'Ynd', $signup_date ) == date( 'Ynd', strtotime( $ipn_data['payment_date'] ) );
+    $signup_date    = strtotime($subscription->created);
+    $today          = date('Ynd', $signup_date) == date('Ynd', strtotime($ipn_data['payment_date']));
 
     // Look to see if payment is same day as signup and we have set the transaction ID on the parent payment yet.
-    if ( (empty($times_billed) || $today) && ( !$transaction_id || $transaction_id == $parent_invoice_id ) ) {
-        wpinv_update_payment_status( $parent_invoice_id, 'publish' );
+    if ((empty($times_billed) || $today) && (!$transaction_id || $transaction_id == $parent_invoice_id)) {
+        wpinv_update_payment_status($parent_invoice_id, 'publish');
         sleep(1);
         
         // This is the very first payment
-        wpinv_set_payment_transaction_id( $parent_invoice_id, $ipn_data['txn_id'] );
-        wpinv_insert_payment_note( $parent_invoice_id, sprintf( __( 'PayPal Transaction ID: %s', 'invoicing' ) , $ipn_data['txn_id'] ), '', '', true );
+        wpinv_set_payment_transaction_id($parent_invoice_id, $ipn_data['txn_id']);
+        wpinv_insert_payment_note($parent_invoice_id, sprintf(__('PayPal Transaction ID: %s', 'invoicing'), $ipn_data['txn_id']), '', '', true);
         return;
     }
 
-    if ( wpinv_get_id_by_transaction_id( $ipn_data['txn_id'] ) ) {
+    if (wpinv_get_id_by_transaction_id($ipn_data['txn_id'])) {
         return; // Payment already recorded
     }
 
-    $currency_code = strtolower( $ipn_data['mc_currency'] );
+    $currency_code = strtolower($ipn_data['mc_currency']);
 
     // verify details
-    if ( $currency_code != strtolower( wpinv_get_currency() ) ) {
+    if ($currency_code != strtolower(wpinv_get_currency())) {
         // the currency code is invalid
-        wpinv_record_gateway_error( __( 'IPN Error', 'invoicing' ), sprintf( __( 'Invalid currency in IPN response. IPN data: ', 'invoicing' ), json_encode( $ipn_data ) ) );
+        wpinv_record_gateway_error(__('IPN Error', 'invoicing'), sprintf(__('Invalid currency in IPN response. IPN data: ', 'invoicing'), json_encode($ipn_data)));
         return;
     }
 
@@ -584,11 +584,11 @@ 
         'gateway'        => 'paypal'
     );
     
-    $invoice_id = $subscription->add_payment( $args );
+    $invoice_id = $subscription->add_payment($args);
 
-    if ( $invoice_id > 0 ) {
-        wpinv_insert_payment_note( $invoice_id, wp_sprintf( __( 'PayPal Transaction ID: %s', 'invoicing' ) , $ipn_data['txn_id'] ), '', '', true );
-        wpinv_insert_payment_note( $invoice_id, wp_sprintf( __( 'PayPal Subscription ID: %s', 'invoicing' ) , $ipn_data['subscr_id'] ), '', '', true );
+    if ($invoice_id > 0) {
+        wpinv_insert_payment_note($invoice_id, wp_sprintf(__('PayPal Transaction ID: %s', 'invoicing'), $ipn_data['txn_id']), '', '', true);
+        wpinv_insert_payment_note($invoice_id, wp_sprintf(__('PayPal Subscription ID: %s', 'invoicing'), $ipn_data['subscr_id']), '', '', true);
 
         $subscription->renew();
     }
@@ -597,10 +597,10 @@ 
 /**
  * Process the subscription canceled IPN.
  */
-function wpinv_process_paypal_subscr_cancel( $ipn_data ) {
-    $subscription = wpinv_get_paypal_subscription( $ipn_data );
+function wpinv_process_paypal_subscr_cancel($ipn_data) {
+    $subscription = wpinv_get_paypal_subscription($ipn_data);
 
-    if( false === $subscription ) {
+    if (false === $subscription) {
         return;
     }
 
@@ -610,10 +610,10 @@ 
 /**
  * Process the subscription expired IPN.
  */
-function wpinv_process_paypal_subscr_eot( $ipn_data ) {
-    $subscription = wpinv_get_paypal_subscription( $ipn_data );
+function wpinv_process_paypal_subscr_eot($ipn_data) {
+    $subscription = wpinv_get_paypal_subscription($ipn_data);
 
-    if( false === $subscription ) {
+    if (false === $subscription) {
         return;
     }
 
@@ -623,40 +623,40 @@ 
 /**
  * Process the subscription payment failed IPN.
  */
-function wpinv_process_paypal_subscr_failed( $ipn_data ) {
-    $subscription = wpinv_get_paypal_subscription( $ipn_data );
+function wpinv_process_paypal_subscr_failed($ipn_data) {
+    $subscription = wpinv_get_paypal_subscription($ipn_data);
 
-    if( false === $subscription ) {
+    if (false === $subscription) {
         return;
     }
 
     $subscription->failing();
 
-    do_action( 'wpinv_recurring_payment_failed', $subscription );
+    do_action('wpinv_recurring_payment_failed', $subscription);
 }
 
 /**
  * Retrieve the subscription this IPN notice is for.
  */
-function wpinv_get_paypal_subscription( $ipn_data = array() ) {
-    $parent_invoice_id = absint( $ipn_data['custom'] );
+function wpinv_get_paypal_subscription($ipn_data = array()) {
+    $parent_invoice_id = absint($ipn_data['custom']);
 
-    if( empty( $parent_invoice_id ) ) {
+    if (empty($parent_invoice_id)) {
         return false;
     }
 
-    $invoice = wpinv_get_invoice( $parent_invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($parent_invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    $subscription = new WPInv_Subscription( $ipn_data['subscr_id'], true );
+    $subscription = new WPInv_Subscription($ipn_data['subscr_id'], true);
 
-    if ( ! ( ! empty( $subscription ) && $subscription->id > 0 ) ) {
-        $subscription = wpinv_get_subscription( $parent_invoice_id );
+    if (!(!empty($subscription) && $subscription->id > 0)) {
+        $subscription = wpinv_get_subscription($parent_invoice_id);
 
-        if ( ! empty( $subscription ) && $subscription->id > 0 ) {
-            $subscription->update( array( 'profile_id' => sanitize_text_field( $ipn_data['subscr_id'] ) ) );
+        if (!empty($subscription) && $subscription->id > 0) {
+            $subscription->update(array('profile_id' => sanitize_text_field($ipn_data['subscr_id'])));
         } else {
             return false;
         }
@@ -666,39 +666,39 @@ 
 
 }
 
-function wpinv_process_paypal_refund( $data, $invoice_id = 0 ) {
+function wpinv_process_paypal_refund($data, $invoice_id = 0) {
 	// Collect payment details
 
-	if( empty( $invoice_id ) ) {
+	if (empty($invoice_id)) {
 		return;
 	}
 
-	if ( get_post_status( $invoice_id ) == 'wpi-refunded' ) {
+	if (get_post_status($invoice_id) == 'wpi-refunded') {
 		return; // Only refund payments once
 	}
 
-	$payment_amount = wpinv_payment_total( $invoice_id );
+	$payment_amount = wpinv_payment_total($invoice_id);
 	$refund_amount  = $data['mc_gross'] * -1;
 
-	do_action( 'wpinv_paypal_refund_request', $data, $invoice_id );
+	do_action('wpinv_paypal_refund_request', $data, $invoice_id);
 
-	if ( number_format( (float) $refund_amount, 2 ) < number_format( (float) $payment_amount, 2 ) ) {
-		wpinv_insert_payment_note( $invoice_id, wp_sprintf( __( 'PayPal partial refund of %s processed for transaction #%s for reason: %s', 'invoicing' ), (float)$refund_amount . ' '. $data['mc_currency'], $data['parent_txn_id'], $data['reason_code'] ), '', '', true );
+	if (number_format((float) $refund_amount, 2) < number_format((float) $payment_amount, 2)) {
+		wpinv_insert_payment_note($invoice_id, wp_sprintf(__('PayPal partial refund of %s processed for transaction #%s for reason: %s', 'invoicing'), (float) $refund_amount . ' ' . $data['mc_currency'], $data['parent_txn_id'], $data['reason_code']), '', '', true);
 
-		do_action( 'wpinv_paypal_invoice_partially_refunded', $data, $invoice_id, $refund_amount );
+		do_action('wpinv_paypal_invoice_partially_refunded', $data, $invoice_id, $refund_amount);
 
 		return; // This is a partial refund
 	}
 
-	wpinv_insert_payment_note( $invoice_id, sprintf( __( 'PayPal Payment #%s Refunded for reason: %s', 'invoicing' ), $data['parent_txn_id'], $data['reason_code'] ), '', '', true );
-	wpinv_insert_payment_note( $invoice_id, sprintf( __( 'PayPal Refund Transaction ID: %s', 'invoicing' ), $data['txn_id'] ), '', '', true );
-	wpinv_update_payment_status( $invoice_id, 'wpi-refunded' );
+	wpinv_insert_payment_note($invoice_id, sprintf(__('PayPal Payment #%s Refunded for reason: %s', 'invoicing'), $data['parent_txn_id'], $data['reason_code']), '', '', true);
+	wpinv_insert_payment_note($invoice_id, sprintf(__('PayPal Refund Transaction ID: %s', 'invoicing'), $data['txn_id']), '', '', true);
+	wpinv_update_payment_status($invoice_id, 'wpi-refunded');
 
-	do_action( 'wpinv_paypal_invoice_fully_refunded', $data, $invoice_id );
+	do_action('wpinv_paypal_invoice_fully_refunded', $data, $invoice_id);
 }
 
-function wpinv_get_paypal_redirect( $ssl_check = false ) {
-    return apply_filters( 'wpinv_paypal_uri', wpinv_is_test_mode( 'paypal' ) ? 'https://www.sandbox.paypal.com/cgi-bin/webscr?test_ipn=1&' : 'https://www.paypal.com/cgi-bin/webscr?' );
+function wpinv_get_paypal_redirect($ssl_check = false) {
+    return apply_filters('wpinv_paypal_uri', wpinv_is_test_mode('paypal') ? 'https://www.sandbox.paypal.com/cgi-bin/webscr?test_ipn=1&' : 'https://www.paypal.com/cgi-bin/webscr?');
 }
 
 /**
@@ -706,111 +706,111 @@ 
  * 
  * @param string $content Success page content.
  */
-function wpinv_paypal_success_page_content( $content ) {
+function wpinv_paypal_success_page_content($content) {
 
     // Retrieve the invoice.
     $invoice_id = getpaid_get_current_invoice_id();
-    $invoice    = wpinv_get_invoice( $invoice_id );
+    $invoice    = wpinv_get_invoice($invoice_id);
 
     // Ensure that it exists and that it is pending payment.
-    if ( empty( $invoice_id ) || ! $invoice->has_status( 'wpi-pending' ) ) {
+    if (empty($invoice_id) || !$invoice->has_status('wpi-pending')) {
         return $content;
     }
 
     // Can the user view this invoice??
-    if ( ! wpinv_user_can_view_invoice( $invoice ) ) {
+    if (!wpinv_user_can_view_invoice($invoice)) {
         return $content;
     }
 
     // Show payment processing indicator.
-    return wpinv_get_template_html( 'wpinv-payment-processing.php', compact( 'invoice' ) );
+    return wpinv_get_template_html('wpinv-payment-processing.php', compact('invoice'));
 
 }
-add_filter( 'wpinv_payment_confirm_paypal', 'wpinv_paypal_success_page_content' );
+add_filter('wpinv_payment_confirm_paypal', 'wpinv_paypal_success_page_content');
 
-function wpinv_paypal_get_transaction_id( $invoice_id ) {
+function wpinv_paypal_get_transaction_id($invoice_id) {
     $transaction_id = '';
-    $notes = wpinv_get_invoice_notes( $invoice_id );
+    $notes = wpinv_get_invoice_notes($invoice_id);
 
-    foreach ( $notes as $note ) {
-        if ( preg_match( '/^PayPal Transaction ID: ([^\s]+)/', $note->comment_content, $match ) ) {
+    foreach ($notes as $note) {
+        if (preg_match('/^PayPal Transaction ID: ([^\s]+)/', $note->comment_content, $match)) {
             $transaction_id = $match[1];
             continue;
         }
     }
 
-    return apply_filters( 'wpinv_paypal_set_transaction_id', $transaction_id, $invoice_id );
+    return apply_filters('wpinv_paypal_set_transaction_id', $transaction_id, $invoice_id);
 }
-add_filter( 'wpinv_payment_get_transaction_id-paypal', 'wpinv_paypal_get_transaction_id', 10, 1 );
+add_filter('wpinv_payment_get_transaction_id-paypal', 'wpinv_paypal_get_transaction_id', 10, 1);
 
-function wpinv_paypal_link_transaction_id( $transaction_id, $invoice_id, $invoice ) {
-    if ( $transaction_id == $invoice_id ) {
+function wpinv_paypal_link_transaction_id($transaction_id, $invoice_id, $invoice) {
+    if ($transaction_id == $invoice_id) {
         $transaction_link = $transaction_id;
     } else {
-        if ( ! empty( $invoice ) && ! empty( $invoice->mode ) ) {
+        if (!empty($invoice) && !empty($invoice->mode)) {
             $mode = $invoice->mode;
         } else {
-            $mode = wpinv_is_test_mode( 'paypal' ) ? 'test' : 'live';
+            $mode = wpinv_is_test_mode('paypal') ? 'test' : 'live';
         }
 
         $sandbox = $mode == 'test' ? '.sandbox' : '';
         $transaction_url = 'https://www' . $sandbox . '.paypal.com/webscr?cmd=_history-details-from-hub&id=' . $transaction_id;
 
-        $transaction_link = '<a href="' . esc_url( $transaction_url ) . '" target="_blank">' . $transaction_id . '</a>';
+        $transaction_link = '<a href="' . esc_url($transaction_url) . '" target="_blank">' . $transaction_id . '</a>';
     }
 
-    return apply_filters( 'wpinv_paypal_link_payment_details_transaction_id', $transaction_link, $transaction_id, $invoice );
+    return apply_filters('wpinv_paypal_link_payment_details_transaction_id', $transaction_link, $transaction_id, $invoice);
 }
-add_filter( 'wpinv_payment_details_transaction_id-paypal', 'wpinv_paypal_link_transaction_id', 10, 3 );
+add_filter('wpinv_payment_details_transaction_id-paypal', 'wpinv_paypal_link_transaction_id', 10, 3);
 
-function wpinv_paypal_profile_id_link( $profile_id, $subscription ) {
+function wpinv_paypal_profile_id_link($profile_id, $subscription) {
     $link = $profile_id;
 
-    if ( ! empty( $profile_id ) && ! empty( $subscription ) && ( $invoice_id = $subscription->get_original_payment_id() ) ) {
-        $invoice = wpinv_get_invoice( $invoice_id );
+    if (!empty($profile_id) && !empty($subscription) && ($invoice_id = $subscription->get_original_payment_id())) {
+        $invoice = wpinv_get_invoice($invoice_id);
 
-        if ( ! empty( $invoice ) && ! empty( $invoice->mode ) ) {
+        if (!empty($invoice) && !empty($invoice->mode)) {
             $mode = $invoice->mode;
         } else {
-            $mode = wpinv_is_test_mode( 'paypal' ) ? 'test' : 'live';
+            $mode = wpinv_is_test_mode('paypal') ? 'test' : 'live';
         }
 
         $sandbox = $mode == 'test' ? '.sandbox' : '';
         $url = 'https://www' . $sandbox . '.paypal.com/cgi-bin/webscr?cmd=_profile-recurring-payments&encrypted_profile_id=' . $profile_id;
 
-        $link = '<a href="' . esc_url( $url ) . '" target="_blank">' . $profile_id . '</a>';
+        $link = '<a href="' . esc_url($url) . '" target="_blank">' . $profile_id . '</a>';
     }
     
-    return apply_filters( 'wpinv_paypal_profile_id_link', $link, $profile_id, $subscription );
+    return apply_filters('wpinv_paypal_profile_id_link', $link, $profile_id, $subscription);
 }
-add_filter( 'wpinv_subscription_profile_link_paypal', 'wpinv_paypal_profile_id_link', 10, 2 );
+add_filter('wpinv_subscription_profile_link_paypal', 'wpinv_paypal_profile_id_link', 10, 2);
 
-function wpinv_paypal_transaction_id_link( $transaction_id, $subscription ) {
-    if ( ! empty( $transaction_id ) && ! empty( $subscription ) && ( $invoice_id = $subscription->get_original_payment_id() ) ) {
-        $invoice = wpinv_get_invoice( $invoice_id );
+function wpinv_paypal_transaction_id_link($transaction_id, $subscription) {
+    if (!empty($transaction_id) && !empty($subscription) && ($invoice_id = $subscription->get_original_payment_id())) {
+        $invoice = wpinv_get_invoice($invoice_id);
 
-        if ( ! empty( $invoice ) ) {
-            return wpinv_paypal_link_transaction_id( $transaction_id, $invoice_id, $invoice );
+        if (!empty($invoice)) {
+            return wpinv_paypal_link_transaction_id($transaction_id, $invoice_id, $invoice);
         }        
     }
     
     return $transaction_id;
 }
-add_filter( 'wpinv_subscription_transaction_link_paypal', 'wpinv_paypal_transaction_id_link', 10, 2 );
+add_filter('wpinv_subscription_transaction_link_paypal', 'wpinv_paypal_transaction_id_link', 10, 2);
 
 function wpinv_is_paypal_valid_for_use() {
-    return in_array( wpinv_get_currency(), apply_filters( 'wpinv_paypal_supported_currencies', array( 'AUD', 'BRL', 'CAD', 'MXN', 'NZD', 'HKD', 'SGD', 'USD', 'EUR', 'JPY', 'TRY', 'NOK', 'CZK', 'DKK', 'HUF', 'ILS', 'MYR', 'PHP', 'PLN', 'SEK', 'CHF', 'TWD', 'THB', 'GBP', 'RMB', 'RUB', 'INR' ) ) );
+    return in_array(wpinv_get_currency(), apply_filters('wpinv_paypal_supported_currencies', array('AUD', 'BRL', 'CAD', 'MXN', 'NZD', 'HKD', 'SGD', 'USD', 'EUR', 'JPY', 'TRY', 'NOK', 'CZK', 'DKK', 'HUF', 'ILS', 'MYR', 'PHP', 'PLN', 'SEK', 'CHF', 'TWD', 'THB', 'GBP', 'RMB', 'RUB', 'INR')));
 }
 
-function wpinv_check_paypal_currency_support( $gateway_list ) {
-    if ( isset( $gateway_list['paypal'] ) && ! wpinv_is_paypal_valid_for_use() ) {
-        unset( $gateway_list['paypal'] );
+function wpinv_check_paypal_currency_support($gateway_list) {
+    if (isset($gateway_list['paypal']) && !wpinv_is_paypal_valid_for_use()) {
+        unset($gateway_list['paypal']);
     }
     return $gateway_list;
 }
-add_filter( 'wpinv_enabled_payment_gateways', 'wpinv_check_paypal_currency_support', 10, 1 );
+add_filter('wpinv_enabled_payment_gateways', 'wpinv_check_paypal_currency_support', 10, 1);
 
-function wpinv_gateway_paypal_button_label( $label ) {
-    return __( 'Proceed to PayPal', 'invoicing' );
+function wpinv_gateway_paypal_button_label($label) {
+    return __('Proceed to PayPal', 'invoicing');
 }
-add_filter( 'wpinv_gateway_paypal_button_label', 'wpinv_gateway_paypal_button_label', 10, 1 );
\ No newline at end of file
+add_filter('wpinv_gateway_paypal_button_label', 'wpinv_gateway_paypal_button_label', 10, 1);
\ No newline at end of file

includes/data-stores/class-getpaid-data.php

Indentation +857 added lines, -857 removed lines

@@ -9,7 +9,7 @@ 
  */
 
 if ( ! defined( 'ABSPATH' ) ) {
-	exit;
+    exit;
 }
 
 /**
@@ -21,356 +21,356 @@ 
  */
 abstract class GetPaid_Data {
 
-	/**
-	 * ID for this object.
-	 *
-	 * @since 1.0.19
-	 * @var int
-	 */
-	protected $id = 0;
-
-	/**
-	 * Core data for this object. Name value pairs (name + default value).
-	 *
-	 * @since 1.0.19
-	 * @var array
-	 */
-	protected $data = array();
-
-	/**
-	 * Core data changes for this object.
-	 *
-	 * @since 1.0.19
-	 * @var array
-	 */
-	protected $changes = array();
-
-	/**
-	 * This is false until the object is read from the DB.
-	 *
-	 * @since 1.0.19
-	 * @var bool
-	 */
-	protected $object_read = false;
-
-	/**
-	 * This is the name of this object type.
-	 *
-	 * @since 1.0.19
-	 * @var string
-	 */
-	protected $object_type = 'data';
-
-	/**
-	 * Extra data for this object. Name value pairs (name + default value).
-	 * Used as a standard way for sub classes (like item types) to add
-	 * additional information to an inherited class.
-	 *
-	 * @since 1.0.19
-	 * @var array
-	 */
-	protected $extra_data = array();
-
-	/**
-	 * Set to _data on construct so we can track and reset data if needed.
-	 *
-	 * @since 1.0.19
-	 * @var array
-	 */
-	protected $default_data = array();
-
-	/**
-	 * Contains a reference to the data store for this class.
-	 *
-	 * @since 1.0.19
-	 * @var GetPaid_Data_Store
-	 */
-	protected $data_store;
-
-	/**
-	 * Stores meta in cache for future reads.
-	 * A group must be set to to enable caching.
-	 *
-	 * @since 1.0.19
-	 * @var string
-	 */
-	protected $cache_group = '';
-
-	/**
-	 * Stores the last error.
-	 *
-	 * @since 1.0.19
-	 * @var string
-	 */
-	public $last_error = '';
-
-	/**
-	 * Stores additional meta data.
-	 *
-	 * @since 1.0.19
-	 * @var array
-	 */
-	protected $meta_data = null;
-
-	/**
-	 * Default constructor.
-	 *
-	 * @param int|object|array $read ID to load from the DB (optional) or already queried data.
-	 */
-	public function __construct( $read = 0 ) {
-		$this->data         = array_merge( $this->data, $this->extra_data );
-		$this->default_data = $this->data;
-	}
-
-	/**
-	 * Only store the object ID to avoid serializing the data object instance.
-	 *
-	 * @return array
-	 */
-	public function __sleep() {
-		return array( 'id' );
-	}
-
-	/**
-	 * Re-run the constructor with the object ID.
-	 *
-	 * If the object no longer exists, remove the ID.
-	 */
-	public function __wakeup() {
-		$this->__construct( absint( $this->id ) );
-
-		if ( ! empty( $this->last_error ) ) {
-			$this->set_id( 0 );
-		}
-
-	}
-
-	/**
-	 * When the object is cloned, make sure meta is duplicated correctly.
-	 *
-	 * @since 1.0.19
-	 */
-	public function __clone() {
-		$this->maybe_read_meta_data();
-		if ( ! empty( $this->meta_data ) ) {
-			foreach ( $this->meta_data as $array_key => $meta ) {
-				$this->meta_data[ $array_key ] = clone $meta;
-				if ( ! empty( $meta->id ) ) {
-					$this->meta_data[ $array_key ]->id = null;
-				}
-			}
-		}
-	}
-
-	/**
-	 * Get the data store.
-	 *
-	 * @since  1.0.19
-	 * @return object
-	 */
-	public function get_data_store() {
-		return $this->data_store;
-	}
-
-	/**
-	 * Get the object type.
-	 *
-	 * @since  1.0.19
-	 * @return string
-	 */
-	public function get_object_type() {
-		return $this->object_type;
-	}
-
-	/**
-	 * Returns the unique ID for this object.
-	 *
-	 * @since  1.0.19
-	 * @return int
-	 */
-	public function get_id() {
-		return $this->id;
-	}
-
-	/**
-	 * Get form status.
-	 *
-	 * @since 1.0.19
-	 * @param  string $context View or edit context.
-	 * @return string
-	 */
-	public function get_status( $context = 'view' ) {
-		return $this->get_prop( 'status', $context );
-    }
-
-	/**
-	 * Delete an object, set the ID to 0, and return result.
-	 *
-	 * @since  1.0.19
-	 * @param  bool $force_delete Should the data be deleted permanently.
-	 * @return bool result
-	 */
-	public function delete( $force_delete = false ) {
-		if ( $this->data_store ) {
-			$this->data_store->delete( $this, array( 'force_delete' => $force_delete ) );
-			$this->set_id( 0 );
-			return true;
-		}
-		return false;
-	}
-
-	/**
-	 * Save should create or update based on object existence.
-	 *
-	 * @since  1.0.19
-	 * @return int
-	 */
-	public function save() {
-		if ( ! $this->data_store ) {
-			return $this->get_id();
-		}
-
-		/**
-		 * Trigger action before saving to the DB. Allows you to adjust object props before save.
-		 *
-		 * @param GetPaid_Data          $this The object being saved.
-		 * @param GetPaid_Data_Store_WP $data_store The data store persisting the data.
-		 */
-		do_action( 'getpaid_before_' . $this->object_type . '_object_save', $this, $this->data_store );
-
-		if ( $this->get_id() ) {
-			$this->data_store->update( $this );
-		} else {
-			$this->data_store->create( $this );
-		}
-
-		/**
-		 * Trigger action after saving to the DB.
-		 *
-		 * @param GetPaid_Data          $this The object being saved.
-		 * @param GetPaid_Data_Store_WP $data_store The data store persisting the data.
-		 */
-		do_action( 'getpaid_after_' . $this->object_type . '_object_save', $this, $this->data_store );
-
-		return $this->get_id();
-	}
-
-	/**
-	 * Change data to JSON format.
-	 *
-	 * @since  1.0.19
-	 * @return string Data in JSON format.
-	 */
-	public function __toString() {
-		return wp_json_encode( $this->get_data() );
-	}
-
-	/**
-	 * Returns all data for this object.
-	 *
-	 * @since  1.0.19
-	 * @return array
-	 */
-	public function get_data() {
-		return array_merge( array( 'id' => $this->get_id() ), $this->data, array( 'meta_data' => $this->get_meta_data() ) );
-	}
-
-	/**
-	 * Returns array of expected data keys for this object.
-	 *
-	 * @since   1.0.19
-	 * @return array
-	 */
-	public function get_data_keys() {
-		return array_keys( $this->data );
-	}
-
-	/**
-	 * Returns all "extra" data keys for an object (for sub objects like item types).
-	 *
-	 * @since  1.0.19
-	 * @return array
-	 */
-	public function get_extra_data_keys() {
-		return array_keys( $this->extra_data );
-	}
-
-	/**
-	 * Filter null meta values from array.
-	 *
-	 * @since  1.0.19
-	 * @param mixed $meta Meta value to check.
-	 * @return bool
-	 */
-	protected function filter_null_meta( $meta ) {
-		return ! is_null( $meta->value );
-	}
-
-	/**
-	 * Get All Meta Data.
-	 *
-	 * @since 1.0.19
-	 * @return array of objects.
-	 */
-	public function get_meta_data() {
-		$this->maybe_read_meta_data();
-		return array_values( array_filter( $this->meta_data, array( $this, 'filter_null_meta' ) ) );
-	}
-
-	/**
-	 * Check if the key is an internal one.
-	 *
-	 * @since  1.0.19
-	 * @param  string $key Key to check.
-	 * @return bool   true if it's an internal key, false otherwise
-	 */
-	protected function is_internal_meta_key( $key ) {
-		$internal_meta_key = ! empty( $key ) && $this->data_store && in_array( $key, $this->data_store->get_internal_meta_keys(), true );
-
-		if ( ! $internal_meta_key ) {
-			return false;
-		}
-
-		$has_setter_or_getter = is_callable( array( $this, 'set_' . $key ) ) || is_callable( array( $this, 'get_' . $key ) );
-
-		if ( ! $has_setter_or_getter ) {
-			return false;
-		}
-
-		/* translators: %s: $key Key to check */
-		getpaid_doing_it_wrong( __FUNCTION__, sprintf( __( 'Generic add/update/get meta methods should not be used for internal meta data, including "%s". Use getters and setters.', 'getpaid' ), $key ), '1.0.19' );
-
-		return true;
-	}
-
-	/**
-	 * Magic method for setting data fields.
-	 *
-	 * This method does not update custom fields in the database.
-	 *
-	 * @since 1.0.19
-	 * @access public
-	 *
-	 */
-	public function __set( $key, $value ) {
-
-		if ( 'id' == strtolower( $key ) ) {
-			return $this->set_id( $value );
-		}
-
-		if ( method_exists( $this, "set_$key") ) {
-
-			/* translators: %s: $key Key to set */
-			getpaid_doing_it_wrong( __FUNCTION__, sprintf( __( 'Object data such as "%s" should not be accessed directly. Use getters and setters.', 'getpaid' ), $key ), '1.0.19' );
-
-			call_user_func( array( $this, "set_$key" ), $value );
-		} else {
-			$this->set_prop( $key, $value );
-		}
-
-	}
-
-	/**
+    /**
+     * ID for this object.
+     *
+     * @since 1.0.19
+     * @var int
+     */
+    protected $id = 0;
+
+    /**
+     * Core data for this object. Name value pairs (name + default value).
+     *
+     * @since 1.0.19
+     * @var array
+     */
+    protected $data = array();
+
+    /**
+     * Core data changes for this object.
+     *
+     * @since 1.0.19
+     * @var array
+     */
+    protected $changes = array();
+
+    /**
+     * This is false until the object is read from the DB.
+     *
+     * @since 1.0.19
+     * @var bool
+     */
+    protected $object_read = false;
+
+    /**
+     * This is the name of this object type.
+     *
+     * @since 1.0.19
+     * @var string
+     */
+    protected $object_type = 'data';
+
+    /**
+     * Extra data for this object. Name value pairs (name + default value).
+     * Used as a standard way for sub classes (like item types) to add
+     * additional information to an inherited class.
+     *
+     * @since 1.0.19
+     * @var array
+     */
+    protected $extra_data = array();
+
+    /**
+     * Set to _data on construct so we can track and reset data if needed.
+     *
+     * @since 1.0.19
+     * @var array
+     */
+    protected $default_data = array();
+
+    /**
+     * Contains a reference to the data store for this class.
+     *
+     * @since 1.0.19
+     * @var GetPaid_Data_Store
+     */
+    protected $data_store;
+
+    /**
+     * Stores meta in cache for future reads.
+     * A group must be set to to enable caching.
+     *
+     * @since 1.0.19
+     * @var string
+     */
+    protected $cache_group = '';
+
+    /**
+     * Stores the last error.
+     *
+     * @since 1.0.19
+     * @var string
+     */
+    public $last_error = '';
+
+    /**
+     * Stores additional meta data.
+     *
+     * @since 1.0.19
+     * @var array
+     */
+    protected $meta_data = null;
+
+    /**
+     * Default constructor.
+     *
+     * @param int|object|array $read ID to load from the DB (optional) or already queried data.
+     */
+    public function __construct( $read = 0 ) {
+        $this->data         = array_merge( $this->data, $this->extra_data );
+        $this->default_data = $this->data;
+    }
+
+    /**
+     * Only store the object ID to avoid serializing the data object instance.
+     *
+     * @return array
+     */
+    public function __sleep() {
+        return array( 'id' );
+    }
+
+    /**
+     * Re-run the constructor with the object ID.
+     *
+     * If the object no longer exists, remove the ID.
+     */
+    public function __wakeup() {
+        $this->__construct( absint( $this->id ) );
+
+        if ( ! empty( $this->last_error ) ) {
+            $this->set_id( 0 );
+        }
+
+    }
+
+    /**
+     * When the object is cloned, make sure meta is duplicated correctly.
+     *
+     * @since 1.0.19
+     */
+    public function __clone() {
+        $this->maybe_read_meta_data();
+        if ( ! empty( $this->meta_data ) ) {
+            foreach ( $this->meta_data as $array_key => $meta ) {
+                $this->meta_data[ $array_key ] = clone $meta;
+                if ( ! empty( $meta->id ) ) {
+                    $this->meta_data[ $array_key ]->id = null;
+                }
+            }
+        }
+    }
+
+    /**
+     * Get the data store.
+     *
+     * @since  1.0.19
+     * @return object
+     */
+    public function get_data_store() {
+        return $this->data_store;
+    }
+
+    /**
+     * Get the object type.
+     *
+     * @since  1.0.19
+     * @return string
+     */
+    public function get_object_type() {
+        return $this->object_type;
+    }
+
+    /**
+     * Returns the unique ID for this object.
+     *
+     * @since  1.0.19
+     * @return int
+     */
+    public function get_id() {
+        return $this->id;
+    }
+
+    /**
+     * Get form status.
+     *
+     * @since 1.0.19
+     * @param  string $context View or edit context.
+     * @return string
+     */
+    public function get_status( $context = 'view' ) {
+        return $this->get_prop( 'status', $context );
+    }
+
+    /**
+     * Delete an object, set the ID to 0, and return result.
+     *
+     * @since  1.0.19
+     * @param  bool $force_delete Should the data be deleted permanently.
+     * @return bool result
+     */
+    public function delete( $force_delete = false ) {
+        if ( $this->data_store ) {
+            $this->data_store->delete( $this, array( 'force_delete' => $force_delete ) );
+            $this->set_id( 0 );
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * Save should create or update based on object existence.
+     *
+     * @since  1.0.19
+     * @return int
+     */
+    public function save() {
+        if ( ! $this->data_store ) {
+            return $this->get_id();
+        }
+
+        /**
+         * Trigger action before saving to the DB. Allows you to adjust object props before save.
+         *
+         * @param GetPaid_Data          $this The object being saved.
+         * @param GetPaid_Data_Store_WP $data_store The data store persisting the data.
+         */
+        do_action( 'getpaid_before_' . $this->object_type . '_object_save', $this, $this->data_store );
+
+        if ( $this->get_id() ) {
+            $this->data_store->update( $this );
+        } else {
+            $this->data_store->create( $this );
+        }
+
+        /**
+         * Trigger action after saving to the DB.
+         *
+         * @param GetPaid_Data          $this The object being saved.
+         * @param GetPaid_Data_Store_WP $data_store The data store persisting the data.
+         */
+        do_action( 'getpaid_after_' . $this->object_type . '_object_save', $this, $this->data_store );
+
+        return $this->get_id();
+    }
+
+    /**
+     * Change data to JSON format.
+     *
+     * @since  1.0.19
+     * @return string Data in JSON format.
+     */
+    public function __toString() {
+        return wp_json_encode( $this->get_data() );
+    }
+
+    /**
+     * Returns all data for this object.
+     *
+     * @since  1.0.19
+     * @return array
+     */
+    public function get_data() {
+        return array_merge( array( 'id' => $this->get_id() ), $this->data, array( 'meta_data' => $this->get_meta_data() ) );
+    }
+
+    /**
+     * Returns array of expected data keys for this object.
+     *
+     * @since   1.0.19
+     * @return array
+     */
+    public function get_data_keys() {
+        return array_keys( $this->data );
+    }
+
+    /**
+     * Returns all "extra" data keys for an object (for sub objects like item types).
+     *
+     * @since  1.0.19
+     * @return array
+     */
+    public function get_extra_data_keys() {
+        return array_keys( $this->extra_data );
+    }
+
+    /**
+     * Filter null meta values from array.
+     *
+     * @since  1.0.19
+     * @param mixed $meta Meta value to check.
+     * @return bool
+     */
+    protected function filter_null_meta( $meta ) {
+        return ! is_null( $meta->value );
+    }
+
+    /**
+     * Get All Meta Data.
+     *
+     * @since 1.0.19
+     * @return array of objects.
+     */
+    public function get_meta_data() {
+        $this->maybe_read_meta_data();
+        return array_values( array_filter( $this->meta_data, array( $this, 'filter_null_meta' ) ) );
+    }
+
+    /**
+     * Check if the key is an internal one.
+     *
+     * @since  1.0.19
+     * @param  string $key Key to check.
+     * @return bool   true if it's an internal key, false otherwise
+     */
+    protected function is_internal_meta_key( $key ) {
+        $internal_meta_key = ! empty( $key ) && $this->data_store && in_array( $key, $this->data_store->get_internal_meta_keys(), true );
+
+        if ( ! $internal_meta_key ) {
+            return false;
+        }
+
+        $has_setter_or_getter = is_callable( array( $this, 'set_' . $key ) ) || is_callable( array( $this, 'get_' . $key ) );
+
+        if ( ! $has_setter_or_getter ) {
+            return false;
+        }
+
+        /* translators: %s: $key Key to check */
+        getpaid_doing_it_wrong( __FUNCTION__, sprintf( __( 'Generic add/update/get meta methods should not be used for internal meta data, including "%s". Use getters and setters.', 'getpaid' ), $key ), '1.0.19' );
+
+        return true;
+    }
+
+    /**
+     * Magic method for setting data fields.
+     *
+     * This method does not update custom fields in the database.
+     *
+     * @since 1.0.19
+     * @access public
+     *
+     */
+    public function __set( $key, $value ) {
+
+        if ( 'id' == strtolower( $key ) ) {
+            return $this->set_id( $value );
+        }
+
+        if ( method_exists( $this, "set_$key") ) {
+
+            /* translators: %s: $key Key to set */
+            getpaid_doing_it_wrong( __FUNCTION__, sprintf( __( 'Object data such as "%s" should not be accessed directly. Use getters and setters.', 'getpaid' ), $key ), '1.0.19' );
+
+            call_user_func( array( $this, "set_$key" ), $value );
+        } else {
+            $this->set_prop( $key, $value );
+        }
+
+    }
+
+    /**
      * Margic method for retrieving a property.
      */
     public function __get( $key ) {
@@ -378,10 +378,10 @@ 
         // Check if we have a helper method for that.
         if ( method_exists( $this, 'get_' . $key ) ) {
 
-			if ( 'post_type' != $key ) {
-				/* translators: %s: $key Key to set */
-				getpaid_doing_it_wrong( __FUNCTION__, sprintf( __( 'Object data such as "%s" should not be accessed directly. Use getters and setters.', 'getpaid' ), $key ), '1.0.19' );
-			}
+            if ( 'post_type' != $key ) {
+                /* translators: %s: $key Key to set */
+                getpaid_doing_it_wrong( __FUNCTION__, sprintf( __( 'Object data such as "%s" should not be accessed directly. Use getters and setters.', 'getpaid' ), $key ), '1.0.19' );
+            }
 
             return call_user_func( array( $this, 'get_' . $key ) );
         }
@@ -391,509 +391,509 @@ 
             return $this->post->$key;
         }
 
-		return $this->get_prop( $key );
-
-    }
-
-	/**
-	 * Get Meta Data by Key.
-	 *
-	 * @since  1.0.19
-	 * @param  string $key Meta Key.
-	 * @param  bool   $single return first found meta with key, or all with $key.
-	 * @param  string $context What the value is for. Valid values are view and edit.
-	 * @return mixed
-	 */
-	public function get_meta( $key = '', $single = true, $context = 'view' ) {
-
-		// Check if this is an internal meta key.
-		$_key = str_replace( '_wpinv', '', $key );
-		$_key = str_replace( 'wpinv', '', $_key );
-		if ( $this->is_internal_meta_key( $_key ) ) {
-			$function = 'get_' . $_key;
-
-			if ( is_callable( array( $this, $function ) ) ) {
-				return $this->{$function}();
-			}
-		}
-
-		// Read the meta data if not yet read.
-		$this->maybe_read_meta_data();
-		$meta_data  = $this->get_meta_data();
-		$array_keys = array_keys( wp_list_pluck( $meta_data, 'key' ), $key, true );
-		$value      = $single ? '' : array();
-
-		if ( ! empty( $array_keys ) ) {
-			// We don't use the $this->meta_data property directly here because we don't want meta with a null value (i.e. meta which has been deleted via $this->delete_meta_data()).
-			if ( $single ) {
-				$value = $meta_data[ current( $array_keys ) ]->value;
-			} else {
-				$value = array_intersect_key( $meta_data, array_flip( $array_keys ) );
-			}
-		}
-
-		if ( 'view' === $context ) {
-			$value = apply_filters( $this->get_hook_prefix() . $key, $value, $this );
-		}
-
-		return $value;
-	}
-
-	/**
-	 * See if meta data exists, since get_meta always returns a '' or array().
-	 *
-	 * @since  1.0.19
-	 * @param  string $key Meta Key.
-	 * @return boolean
-	 */
-	public function meta_exists( $key = '' ) {
-		$this->maybe_read_meta_data();
-		$array_keys = wp_list_pluck( $this->get_meta_data(), 'key' );
-		return in_array( $key, $array_keys, true );
-	}
-
-	/**
-	 * Set all meta data from array.
-	 *
-	 * @since 1.0.19
-	 * @param array $data Key/Value pairs.
-	 */
-	public function set_meta_data( $data ) {
-		if ( ! empty( $data ) && is_array( $data ) ) {
-			$this->maybe_read_meta_data();
-			foreach ( $data as $meta ) {
-				$meta = (array) $meta;
-				if ( isset( $meta['key'], $meta['value'], $meta['id'] ) ) {
-					$this->meta_data[] = new GetPaid_Meta_Data(
-						array(
-							'id'    => $meta['id'],
-							'key'   => $meta['key'],
-							'value' => $meta['value'],
-						)
-					);
-				}
-			}
-		}
-	}
-
-	/**
-	 * Add meta data.
-	 *
-	 * @since 1.0.19
-	 *
-	 * @param string       $key Meta key.
-	 * @param string|array $value Meta value.
-	 * @param bool         $unique Should this be a unique key?.
-	 */
-	public function add_meta_data( $key, $value, $unique = false ) {
-		if ( $this->is_internal_meta_key( $key ) ) {
-			$function = 'set_' . $key;
-
-			if ( is_callable( array( $this, $function ) ) ) {
-				return $this->{$function}( $value );
-			}
-		}
-
-		$this->maybe_read_meta_data();
-		if ( $unique ) {
-			$this->delete_meta_data( $key );
-		}
-		$this->meta_data[] = new GetPaid_Meta_Data(
-			array(
-				'key'   => $key,
-				'value' => $value,
-			)
-		);
-	}
-
-	/**
-	 * Update meta data by key or ID, if provided.
-	 *
-	 * @since  1.0.19
-	 *
-	 * @param  string       $key Meta key.
-	 * @param  string|array $value Meta value.
-	 * @param  int          $meta_id Meta ID.
-	 */
-	public function update_meta_data( $key, $value, $meta_id = 0 ) {
-		if ( $this->is_internal_meta_key( $key ) ) {
-			$function = 'set_' . $key;
-
-			if ( is_callable( array( $this, $function ) ) ) {
-				return $this->{$function}( $value );
-			}
-		}
-
-		$this->maybe_read_meta_data();
-
-		$array_key = false;
-
-		if ( $meta_id ) {
-			$array_keys = array_keys( wp_list_pluck( $this->meta_data, 'id' ), $meta_id, true );
-			$array_key  = $array_keys ? current( $array_keys ) : false;
-		} else {
-			// Find matches by key.
-			$matches = array();
-			foreach ( $this->meta_data as $meta_data_array_key => $meta ) {
-				if ( $meta->key === $key ) {
-					$matches[] = $meta_data_array_key;
-				}
-			}
-
-			if ( ! empty( $matches ) ) {
-				// Set matches to null so only one key gets the new value.
-				foreach ( $matches as $meta_data_array_key ) {
-					$this->meta_data[ $meta_data_array_key ]->value = null;
-				}
-				$array_key = current( $matches );
-			}
-		}
-
-		if ( false !== $array_key ) {
-			$meta        = $this->meta_data[ $array_key ];
-			$meta->key   = $key;
-			$meta->value = $value;
-		} else {
-			$this->add_meta_data( $key, $value, true );
-		}
-	}
-
-	/**
-	 * Delete meta data.
-	 *
-	 * @since 1.0.19
-	 * @param string $key Meta key.
-	 */
-	public function delete_meta_data( $key ) {
-		$this->maybe_read_meta_data();
-		$array_keys = array_keys( wp_list_pluck( $this->meta_data, 'key' ), $key, true );
-
-		if ( $array_keys ) {
-			foreach ( $array_keys as $array_key ) {
-				$this->meta_data[ $array_key ]->value = null;
-			}
-		}
-	}
-
-	/**
-	 * Delete meta data.
-	 *
-	 * @since 1.0.19
-	 * @param int $mid Meta ID.
-	 */
-	public function delete_meta_data_by_mid( $mid ) {
-		$this->maybe_read_meta_data();
-		$array_keys = array_keys( wp_list_pluck( $this->meta_data, 'id' ), (int) $mid, true );
-
-		if ( $array_keys ) {
-			foreach ( $array_keys as $array_key ) {
-				$this->meta_data[ $array_key ]->value = null;
-			}
-		}
-	}
-
-	/**
-	 * Read meta data if null.
-	 *
-	 * @since 1.0.19
-	 */
-	protected function maybe_read_meta_data() {
-		if ( is_null( $this->meta_data ) ) {
-			$this->read_meta_data();
-		}
-	}
-
-	/**
-	 * Read Meta Data from the database. Ignore any internal properties.
-	 * Uses it's own caches because get_metadata does not provide meta_ids.
-	 *
-	 * @since 1.0.19
-	 * @param bool $force_read True to force a new DB read (and update cache).
-	 */
-	public function read_meta_data( $force_read = false ) {
-		$this->meta_data = array();
-		$cache_loaded    = false;
-
-		if ( ! $this->get_id() ) {
-			return;
-		}
-
-		if ( ! $this->data_store ) {
-			return;
-		}
-
-		if ( ! empty( $this->cache_group ) ) {
-			$cache_key = GetPaid_Cache_Helper::get_cache_prefix( $this->cache_group ) . GetPaid_Cache_Helper::get_cache_prefix( 'object_' . $this->get_id() ) . 'object_meta_' . $this->get_id();
-		}
-
-		if ( ! $force_read ) {
-			if ( ! empty( $this->cache_group ) ) {
-				$cached_meta  = wp_cache_get( $cache_key, $this->cache_group );
-				$cache_loaded = ! empty( $cached_meta );
-			}
-		}
-
-		$raw_meta_data = $cache_loaded ? $cached_meta : $this->data_store->read_meta( $this );
-		if ( $raw_meta_data ) {
-			foreach ( $raw_meta_data as $meta ) {
-				$this->meta_data[] = new GetPaid_Meta_Data(
-					array(
-						'id'    => (int) $meta->meta_id,
-						'key'   => $meta->meta_key,
-						'value' => maybe_unserialize( $meta->meta_value ),
-					)
-				);
-			}
-
-			if ( ! $cache_loaded && ! empty( $this->cache_group ) ) {
-				wp_cache_set( $cache_key, $raw_meta_data, $this->cache_group );
-			}
-		}
-	}
-
-	/**
-	 * Update Meta Data in the database.
-	 *
-	 * @since 1.0.19
-	 */
-	public function save_meta_data() {
-		if ( ! $this->data_store || is_null( $this->meta_data ) ) {
-			return;
-		}
-		foreach ( $this->meta_data as $array_key => $meta ) {
-			if ( is_null( $meta->value ) ) {
-				if ( ! empty( $meta->id ) ) {
-					$this->data_store->delete_meta( $this, $meta );
-					unset( $this->meta_data[ $array_key ] );
-				}
-			} elseif ( empty( $meta->id ) ) {
-				$meta->id = $this->data_store->add_meta( $this, $meta );
-				$meta->apply_changes();
-			} else {
-				if ( $meta->get_changes() ) {
-					$this->data_store->update_meta( $this, $meta );
-					$meta->apply_changes();
-				}
-			}
-		}
-		if ( ! empty( $this->cache_group ) ) {
-			$cache_key = GetPaid_Cache_Helper::get_cache_prefix( $this->cache_group ) . GetPaid_Cache_Helper::get_cache_prefix( 'object_' . $this->get_id() ) . 'object_meta_' . $this->get_id();
-			wp_cache_delete( $cache_key, $this->cache_group );
-		}
-	}
-
-	/**
-	 * Set ID.
-	 *
-	 * @since 1.0.19
-	 * @param int $id ID.
-	 */
-	public function set_id( $id ) {
-		$this->id = absint( $id );
-	}
-
-	/**
-	 * Sets item status.
-	 *
-	 * @since 1.0.19
-	 * @param string $status New status.
-	 * @return array details of change.
-	 */
-	public function set_status( $status ) {
+        return $this->get_prop( $key );
+
+    }
+
+    /**
+     * Get Meta Data by Key.
+     *
+     * @since  1.0.19
+     * @param  string $key Meta Key.
+     * @param  bool   $single return first found meta with key, or all with $key.
+     * @param  string $context What the value is for. Valid values are view and edit.
+     * @return mixed
+     */
+    public function get_meta( $key = '', $single = true, $context = 'view' ) {
+
+        // Check if this is an internal meta key.
+        $_key = str_replace( '_wpinv', '', $key );
+        $_key = str_replace( 'wpinv', '', $_key );
+        if ( $this->is_internal_meta_key( $_key ) ) {
+            $function = 'get_' . $_key;
+
+            if ( is_callable( array( $this, $function ) ) ) {
+                return $this->{$function}();
+            }
+        }
+
+        // Read the meta data if not yet read.
+        $this->maybe_read_meta_data();
+        $meta_data  = $this->get_meta_data();
+        $array_keys = array_keys( wp_list_pluck( $meta_data, 'key' ), $key, true );
+        $value      = $single ? '' : array();
+
+        if ( ! empty( $array_keys ) ) {
+            // We don't use the $this->meta_data property directly here because we don't want meta with a null value (i.e. meta which has been deleted via $this->delete_meta_data()).
+            if ( $single ) {
+                $value = $meta_data[ current( $array_keys ) ]->value;
+            } else {
+                $value = array_intersect_key( $meta_data, array_flip( $array_keys ) );
+            }
+        }
+
+        if ( 'view' === $context ) {
+            $value = apply_filters( $this->get_hook_prefix() . $key, $value, $this );
+        }
+
+        return $value;
+    }
+
+    /**
+     * See if meta data exists, since get_meta always returns a '' or array().
+     *
+     * @since  1.0.19
+     * @param  string $key Meta Key.
+     * @return boolean
+     */
+    public function meta_exists( $key = '' ) {
+        $this->maybe_read_meta_data();
+        $array_keys = wp_list_pluck( $this->get_meta_data(), 'key' );
+        return in_array( $key, $array_keys, true );
+    }
+
+    /**
+     * Set all meta data from array.
+     *
+     * @since 1.0.19
+     * @param array $data Key/Value pairs.
+     */
+    public function set_meta_data( $data ) {
+        if ( ! empty( $data ) && is_array( $data ) ) {
+            $this->maybe_read_meta_data();
+            foreach ( $data as $meta ) {
+                $meta = (array) $meta;
+                if ( isset( $meta['key'], $meta['value'], $meta['id'] ) ) {
+                    $this->meta_data[] = new GetPaid_Meta_Data(
+                        array(
+                            'id'    => $meta['id'],
+                            'key'   => $meta['key'],
+                            'value' => $meta['value'],
+                        )
+                    );
+                }
+            }
+        }
+    }
+
+    /**
+     * Add meta data.
+     *
+     * @since 1.0.19
+     *
+     * @param string       $key Meta key.
+     * @param string|array $value Meta value.
+     * @param bool         $unique Should this be a unique key?.
+     */
+    public function add_meta_data( $key, $value, $unique = false ) {
+        if ( $this->is_internal_meta_key( $key ) ) {
+            $function = 'set_' . $key;
+
+            if ( is_callable( array( $this, $function ) ) ) {
+                return $this->{$function}( $value );
+            }
+        }
+
+        $this->maybe_read_meta_data();
+        if ( $unique ) {
+            $this->delete_meta_data( $key );
+        }
+        $this->meta_data[] = new GetPaid_Meta_Data(
+            array(
+                'key'   => $key,
+                'value' => $value,
+            )
+        );
+    }
+
+    /**
+     * Update meta data by key or ID, if provided.
+     *
+     * @since  1.0.19
+     *
+     * @param  string       $key Meta key.
+     * @param  string|array $value Meta value.
+     * @param  int          $meta_id Meta ID.
+     */
+    public function update_meta_data( $key, $value, $meta_id = 0 ) {
+        if ( $this->is_internal_meta_key( $key ) ) {
+            $function = 'set_' . $key;
+
+            if ( is_callable( array( $this, $function ) ) ) {
+                return $this->{$function}( $value );
+            }
+        }
+
+        $this->maybe_read_meta_data();
+
+        $array_key = false;
+
+        if ( $meta_id ) {
+            $array_keys = array_keys( wp_list_pluck( $this->meta_data, 'id' ), $meta_id, true );
+            $array_key  = $array_keys ? current( $array_keys ) : false;
+        } else {
+            // Find matches by key.
+            $matches = array();
+            foreach ( $this->meta_data as $meta_data_array_key => $meta ) {
+                if ( $meta->key === $key ) {
+                    $matches[] = $meta_data_array_key;
+                }
+            }
+
+            if ( ! empty( $matches ) ) {
+                // Set matches to null so only one key gets the new value.
+                foreach ( $matches as $meta_data_array_key ) {
+                    $this->meta_data[ $meta_data_array_key ]->value = null;
+                }
+                $array_key = current( $matches );
+            }
+        }
+
+        if ( false !== $array_key ) {
+            $meta        = $this->meta_data[ $array_key ];
+            $meta->key   = $key;
+            $meta->value = $value;
+        } else {
+            $this->add_meta_data( $key, $value, true );
+        }
+    }
+
+    /**
+     * Delete meta data.
+     *
+     * @since 1.0.19
+     * @param string $key Meta key.
+     */
+    public function delete_meta_data( $key ) {
+        $this->maybe_read_meta_data();
+        $array_keys = array_keys( wp_list_pluck( $this->meta_data, 'key' ), $key, true );
+
+        if ( $array_keys ) {
+            foreach ( $array_keys as $array_key ) {
+                $this->meta_data[ $array_key ]->value = null;
+            }
+        }
+    }
+
+    /**
+     * Delete meta data.
+     *
+     * @since 1.0.19
+     * @param int $mid Meta ID.
+     */
+    public function delete_meta_data_by_mid( $mid ) {
+        $this->maybe_read_meta_data();
+        $array_keys = array_keys( wp_list_pluck( $this->meta_data, 'id' ), (int) $mid, true );
+
+        if ( $array_keys ) {
+            foreach ( $array_keys as $array_key ) {
+                $this->meta_data[ $array_key ]->value = null;
+            }
+        }
+    }
+
+    /**
+     * Read meta data if null.
+     *
+     * @since 1.0.19
+     */
+    protected function maybe_read_meta_data() {
+        if ( is_null( $this->meta_data ) ) {
+            $this->read_meta_data();
+        }
+    }
+
+    /**
+     * Read Meta Data from the database. Ignore any internal properties.
+     * Uses it's own caches because get_metadata does not provide meta_ids.
+     *
+     * @since 1.0.19
+     * @param bool $force_read True to force a new DB read (and update cache).
+     */
+    public function read_meta_data( $force_read = false ) {
+        $this->meta_data = array();
+        $cache_loaded    = false;
+
+        if ( ! $this->get_id() ) {
+            return;
+        }
+
+        if ( ! $this->data_store ) {
+            return;
+        }
+
+        if ( ! empty( $this->cache_group ) ) {
+            $cache_key = GetPaid_Cache_Helper::get_cache_prefix( $this->cache_group ) . GetPaid_Cache_Helper::get_cache_prefix( 'object_' . $this->get_id() ) . 'object_meta_' . $this->get_id();
+        }
+
+        if ( ! $force_read ) {
+            if ( ! empty( $this->cache_group ) ) {
+                $cached_meta  = wp_cache_get( $cache_key, $this->cache_group );
+                $cache_loaded = ! empty( $cached_meta );
+            }
+        }
+
+        $raw_meta_data = $cache_loaded ? $cached_meta : $this->data_store->read_meta( $this );
+        if ( $raw_meta_data ) {
+            foreach ( $raw_meta_data as $meta ) {
+                $this->meta_data[] = new GetPaid_Meta_Data(
+                    array(
+                        'id'    => (int) $meta->meta_id,
+                        'key'   => $meta->meta_key,
+                        'value' => maybe_unserialize( $meta->meta_value ),
+                    )
+                );
+            }
+
+            if ( ! $cache_loaded && ! empty( $this->cache_group ) ) {
+                wp_cache_set( $cache_key, $raw_meta_data, $this->cache_group );
+            }
+        }
+    }
+
+    /**
+     * Update Meta Data in the database.
+     *
+     * @since 1.0.19
+     */
+    public function save_meta_data() {
+        if ( ! $this->data_store || is_null( $this->meta_data ) ) {
+            return;
+        }
+        foreach ( $this->meta_data as $array_key => $meta ) {
+            if ( is_null( $meta->value ) ) {
+                if ( ! empty( $meta->id ) ) {
+                    $this->data_store->delete_meta( $this, $meta );
+                    unset( $this->meta_data[ $array_key ] );
+                }
+            } elseif ( empty( $meta->id ) ) {
+                $meta->id = $this->data_store->add_meta( $this, $meta );
+                $meta->apply_changes();
+            } else {
+                if ( $meta->get_changes() ) {
+                    $this->data_store->update_meta( $this, $meta );
+                    $meta->apply_changes();
+                }
+            }
+        }
+        if ( ! empty( $this->cache_group ) ) {
+            $cache_key = GetPaid_Cache_Helper::get_cache_prefix( $this->cache_group ) . GetPaid_Cache_Helper::get_cache_prefix( 'object_' . $this->get_id() ) . 'object_meta_' . $this->get_id();
+            wp_cache_delete( $cache_key, $this->cache_group );
+        }
+    }
+
+    /**
+     * Set ID.
+     *
+     * @since 1.0.19
+     * @param int $id ID.
+     */
+    public function set_id( $id ) {
+        $this->id = absint( $id );
+    }
+
+    /**
+     * Sets item status.
+     *
+     * @since 1.0.19
+     * @param string $status New status.
+     * @return array details of change.
+     */
+    public function set_status( $status ) {
         $old_status = $this->get_status();
 
-		$this->set_prop( 'status', $status );
-
-		return array(
-			'from' => $old_status,
-			'to'   => $status,
-		);
-    }
-
-	/**
-	 * Set all props to default values.
-	 *
-	 * @since 1.0.19
-	 */
-	public function set_defaults() {
-		$this->data    = $this->default_data;
-		$this->changes = array();
-		$this->set_object_read( false );
-	}
-
-	/**
-	 * Set object read property.
-	 *
-	 * @since 1.0.19
-	 * @param boolean $read Should read?.
-	 */
-	public function set_object_read( $read = true ) {
-		$this->object_read = (bool) $read;
-	}
-
-	/**
-	 * Get object read property.
-	 *
-	 * @since  1.0.19
-	 * @return boolean
-	 */
-	public function get_object_read() {
-		return (bool) $this->object_read;
-	}
-
-	/**
-	 * Set a collection of props in one go, collect any errors, and return the result.
-	 * Only sets using public methods.
-	 *
-	 * @since  1.0.19
-	 *
-	 * @param array  $props Key value pairs to set. Key is the prop and should map to a setter function name.
-	 * @param string $context In what context to run this.
-	 *
-	 * @return bool|WP_Error
-	 */
-	public function set_props( $props, $context = 'set' ) {
-		$errors = false;
-
-		foreach ( $props as $prop => $value ) {
-			try {
-				/**
-				 * Checks if the prop being set is allowed, and the value is not null.
-				 */
-				if ( is_null( $value ) || in_array( $prop, array( 'prop', 'date_prop', 'meta_data' ), true ) ) {
-					continue;
-				}
-				$setter = "set_$prop";
-
-				if ( is_callable( array( $this, $setter ) ) ) {
-					$this->{$setter}( $value );
-				}
-			} catch ( Exception $e ) {
-				if ( ! $errors ) {
-					$errors = new WP_Error();
-				}
-				$errors->add( $e->getCode(), $e->getMessage() );
-				$this->last_error = $e->getMessage();
-			}
-		}
-
-		return $errors && count( $errors->get_error_codes() ) ? $errors : true;
-	}
-
-	/**
-	 * Sets a prop for a setter method.
-	 *
-	 * This stores changes in a special array so we can track what needs saving
-	 * the the DB later.
-	 *
-	 * @since 1.0.19
-	 * @param string $prop Name of prop to set.
-	 * @param mixed  $value Value of the prop.
-	 */
-	protected function set_prop( $prop, $value ) {
-		if ( array_key_exists( $prop, $this->data ) ) {
-			if ( true === $this->object_read ) {
-				if ( $value !== $this->data[ $prop ] || array_key_exists( $prop, $this->changes ) ) {
-					$this->changes[ $prop ] = maybe_unserialize( $value );
-				}
-			} else {
-				$this->data[ $prop ] = maybe_unserialize( $value );
-			}
-		}
-	}
-
-	/**
-	 * Return data changes only.
-	 *
-	 * @since 1.0.19
-	 * @return array
-	 */
-	public function get_changes() {
-		return $this->changes;
-	}
-
-	/**
-	 * Merge changes with data and clear.
-	 *
-	 * @since 1.0.19
-	 */
-	public function apply_changes() {
-		$this->data    = array_replace_recursive( $this->data, $this->changes );
-		$this->changes = array();
-	}
-
-	/**
-	 * Prefix for action and filter hooks on data.
-	 *
-	 * @since  1.0.19
-	 * @return string
-	 */
-	protected function get_hook_prefix() {
-		return 'wpinv_get_' . $this->object_type . '_';
-	}
-
-	/**
-	 * Gets a prop for a getter method.
-	 *
-	 * Gets the value from either current pending changes, or the data itself.
-	 * Context controls what happens to the value before it's returned.
-	 *
-	 * @since  1.0.19
-	 * @param  string $prop Name of prop to get.
-	 * @param  string $context What the value is for. Valid values are view and edit.
-	 * @return mixed
-	 */
-	protected function get_prop( $prop, $context = 'view' ) {
-		$value = null;
-
-		if ( array_key_exists( $prop, $this->data ) ) {
-			$value = array_key_exists( $prop, $this->changes ) ? $this->changes[ $prop ] : $this->data[ $prop ];
-
-			if ( 'view' === $context ) {
-				$value = apply_filters( $this->get_hook_prefix() . $prop, $value, $this );
-			}
-		}
-
-		return $value;
-	}
-
-	/**
-	 * Sets a date prop whilst handling formatting and datetime objects.
-	 *
-	 * @since 1.0.19
-	 * @param string         $prop Name of prop to set.
-	 * @param string|integer $value Value of the prop.
-	 */
-	protected function set_date_prop( $prop, $value ) {
-
-		if ( empty( $value ) ) {
-			$this->set_prop( $prop, null );
-			return;
-		}
-		$this->set_prop( $prop, $value );
-
-	}
-
-	/**
-	 * When invalid data is found, throw an exception unless reading from the DB.
-	 *
-	 * @since 1.0.19
-	 * @param string $code             Error code.
-	 * @param string $message          Error message.
-	 */
-	protected function error( $code, $message ) {
-		$this->last_error = $message;
-	}
-
-	/**
-	 * Checks if the object is saved in the database
-	 *
-	 * @since 1.0.19
-	 * @return bool
-	 */
-	public function exists() {
-		$id = $this->get_id();
-		return ! empty( $id );
-	}
+        $this->set_prop( 'status', $status );
+
+        return array(
+            'from' => $old_status,
+            'to'   => $status,
+        );
+    }
+
+    /**
+     * Set all props to default values.
+     *
+     * @since 1.0.19
+     */
+    public function set_defaults() {
+        $this->data    = $this->default_data;
+        $this->changes = array();
+        $this->set_object_read( false );
+    }
+
+    /**
+     * Set object read property.
+     *
+     * @since 1.0.19
+     * @param boolean $read Should read?.
+     */
+    public function set_object_read( $read = true ) {
+        $this->object_read = (bool) $read;
+    }
+
+    /**
+     * Get object read property.
+     *
+     * @since  1.0.19
+     * @return boolean
+     */
+    public function get_object_read() {
+        return (bool) $this->object_read;
+    }
+
+    /**
+     * Set a collection of props in one go, collect any errors, and return the result.
+     * Only sets using public methods.
+     *
+     * @since  1.0.19
+     *
+     * @param array  $props Key value pairs to set. Key is the prop and should map to a setter function name.
+     * @param string $context In what context to run this.
+     *
+     * @return bool|WP_Error
+     */
+    public function set_props( $props, $context = 'set' ) {
+        $errors = false;
+
+        foreach ( $props as $prop => $value ) {
+            try {
+                /**
+                 * Checks if the prop being set is allowed, and the value is not null.
+                 */
+                if ( is_null( $value ) || in_array( $prop, array( 'prop', 'date_prop', 'meta_data' ), true ) ) {
+                    continue;
+                }
+                $setter = "set_$prop";
+
+                if ( is_callable( array( $this, $setter ) ) ) {
+                    $this->{$setter}( $value );
+                }
+            } catch ( Exception $e ) {
+                if ( ! $errors ) {
+                    $errors = new WP_Error();
+                }
+                $errors->add( $e->getCode(), $e->getMessage() );
+                $this->last_error = $e->getMessage();
+            }
+        }
+
+        return $errors && count( $errors->get_error_codes() ) ? $errors : true;
+    }
+
+    /**
+     * Sets a prop for a setter method.
+     *
+     * This stores changes in a special array so we can track what needs saving
+     * the the DB later.
+     *
+     * @since 1.0.19
+     * @param string $prop Name of prop to set.
+     * @param mixed  $value Value of the prop.
+     */
+    protected function set_prop( $prop, $value ) {
+        if ( array_key_exists( $prop, $this->data ) ) {
+            if ( true === $this->object_read ) {
+                if ( $value !== $this->data[ $prop ] || array_key_exists( $prop, $this->changes ) ) {
+                    $this->changes[ $prop ] = maybe_unserialize( $value );
+                }
+            } else {
+                $this->data[ $prop ] = maybe_unserialize( $value );
+            }
+        }
+    }
+
+    /**
+     * Return data changes only.
+     *
+     * @since 1.0.19
+     * @return array
+     */
+    public function get_changes() {
+        return $this->changes;
+    }
+
+    /**
+     * Merge changes with data and clear.
+     *
+     * @since 1.0.19
+     */
+    public function apply_changes() {
+        $this->data    = array_replace_recursive( $this->data, $this->changes );
+        $this->changes = array();
+    }
+
+    /**
+     * Prefix for action and filter hooks on data.
+     *
+     * @since  1.0.19
+     * @return string
+     */
+    protected function get_hook_prefix() {
+        return 'wpinv_get_' . $this->object_type . '_';
+    }
+
+    /**
+     * Gets a prop for a getter method.
+     *
+     * Gets the value from either current pending changes, or the data itself.
+     * Context controls what happens to the value before it's returned.
+     *
+     * @since  1.0.19
+     * @param  string $prop Name of prop to get.
+     * @param  string $context What the value is for. Valid values are view and edit.
+     * @return mixed
+     */
+    protected function get_prop( $prop, $context = 'view' ) {
+        $value = null;
+
+        if ( array_key_exists( $prop, $this->data ) ) {
+            $value = array_key_exists( $prop, $this->changes ) ? $this->changes[ $prop ] : $this->data[ $prop ];
+
+            if ( 'view' === $context ) {
+                $value = apply_filters( $this->get_hook_prefix() . $prop, $value, $this );
+            }
+        }
+
+        return $value;
+    }
+
+    /**
+     * Sets a date prop whilst handling formatting and datetime objects.
+     *
+     * @since 1.0.19
+     * @param string         $prop Name of prop to set.
+     * @param string|integer $value Value of the prop.
+     */
+    protected function set_date_prop( $prop, $value ) {
+
+        if ( empty( $value ) ) {
+            $this->set_prop( $prop, null );
+            return;
+        }
+        $this->set_prop( $prop, $value );
+
+    }
+
+    /**
+     * When invalid data is found, throw an exception unless reading from the DB.
+     *
+     * @since 1.0.19
+     * @param string $code             Error code.
+     * @param string $message          Error message.
+     */
+    protected function error( $code, $message ) {
+        $this->last_error = $message;
+    }
+
+    /**
+     * Checks if the object is saved in the database
+     *
+     * @since 1.0.19
+     * @return bool
+     */
+    public function exists() {
+        $id = $this->get_id();
+        return ! empty( $id );
+    }
 
 }

Spacing +164 added lines, -164 removed lines

@@ -8,7 +8,7 @@ 
  *
  */
 
-if ( ! defined( 'ABSPATH' ) ) {
+if (!defined('ABSPATH')) {
 	exit;
 }
 
@@ -117,8 +117,8 @@ 
 	 *
 	 * @param int|object|array $read ID to load from the DB (optional) or already queried data.
 	 */
-	public function __construct( $read = 0 ) {
-		$this->data         = array_merge( $this->data, $this->extra_data );
+	public function __construct($read = 0) {
+		$this->data         = array_merge($this->data, $this->extra_data);
 		$this->default_data = $this->data;
 	}
 
@@ -128,7 +128,7 @@ 
 	 * @return array
 	 */
 	public function __sleep() {
-		return array( 'id' );
+		return array('id');
 	}
 
 	/**
@@ -137,10 +137,10 @@ 
 	 * If the object no longer exists, remove the ID.
 	 */
 	public function __wakeup() {
-		$this->__construct( absint( $this->id ) );
+		$this->__construct(absint($this->id));
 
-		if ( ! empty( $this->last_error ) ) {
-			$this->set_id( 0 );
+		if (!empty($this->last_error)) {
+			$this->set_id(0);
 		}
 
 	}
@@ -152,11 +152,11 @@ 
 	 */
 	public function __clone() {
 		$this->maybe_read_meta_data();
-		if ( ! empty( $this->meta_data ) ) {
-			foreach ( $this->meta_data as $array_key => $meta ) {
-				$this->meta_data[ $array_key ] = clone $meta;
-				if ( ! empty( $meta->id ) ) {
-					$this->meta_data[ $array_key ]->id = null;
+		if (!empty($this->meta_data)) {
+			foreach ($this->meta_data as $array_key => $meta) {
+				$this->meta_data[$array_key] = clone $meta;
+				if (!empty($meta->id)) {
+					$this->meta_data[$array_key]->id = null;
 				}
 			}
 		}
@@ -199,8 +199,8 @@ 
 	 * @param  string $context View or edit context.
 	 * @return string
 	 */
-	public function get_status( $context = 'view' ) {
-		return $this->get_prop( 'status', $context );
+	public function get_status($context = 'view') {
+		return $this->get_prop('status', $context);
     }
 
 	/**
@@ -210,10 +210,10 @@ 
 	 * @param  bool $force_delete Should the data be deleted permanently.
 	 * @return bool result
 	 */
-	public function delete( $force_delete = false ) {
-		if ( $this->data_store ) {
-			$this->data_store->delete( $this, array( 'force_delete' => $force_delete ) );
-			$this->set_id( 0 );
+	public function delete($force_delete = false) {
+		if ($this->data_store) {
+			$this->data_store->delete($this, array('force_delete' => $force_delete));
+			$this->set_id(0);
 			return true;
 		}
 		return false;
@@ -226,7 +226,7 @@ 
 	 * @return int
 	 */
 	public function save() {
-		if ( ! $this->data_store ) {
+		if (!$this->data_store) {
 			return $this->get_id();
 		}
 
@@ -236,12 +236,12 @@ 
 		 * @param GetPaid_Data          $this The object being saved.
 		 * @param GetPaid_Data_Store_WP $data_store The data store persisting the data.
 		 */
-		do_action( 'getpaid_before_' . $this->object_type . '_object_save', $this, $this->data_store );
+		do_action('getpaid_before_' . $this->object_type . '_object_save', $this, $this->data_store);
 
-		if ( $this->get_id() ) {
-			$this->data_store->update( $this );
+		if ($this->get_id()) {
+			$this->data_store->update($this);
 		} else {
-			$this->data_store->create( $this );
+			$this->data_store->create($this);
 		}
 
 		/**
@@ -250,7 +250,7 @@ 
 		 * @param GetPaid_Data          $this The object being saved.
 		 * @param GetPaid_Data_Store_WP $data_store The data store persisting the data.
 		 */
-		do_action( 'getpaid_after_' . $this->object_type . '_object_save', $this, $this->data_store );
+		do_action('getpaid_after_' . $this->object_type . '_object_save', $this, $this->data_store);
 
 		return $this->get_id();
 	}
@@ -262,7 +262,7 @@ 
 	 * @return string Data in JSON format.
 	 */
 	public function __toString() {
-		return wp_json_encode( $this->get_data() );
+		return wp_json_encode($this->get_data());
 	}
 
 	/**
@@ -272,7 +272,7 @@ 
 	 * @return array
 	 */
 	public function get_data() {
-		return array_merge( array( 'id' => $this->get_id() ), $this->data, array( 'meta_data' => $this->get_meta_data() ) );
+		return array_merge(array('id' => $this->get_id()), $this->data, array('meta_data' => $this->get_meta_data()));
 	}
 
 	/**
@@ -282,7 +282,7 @@ 
 	 * @return array
 	 */
 	public function get_data_keys() {
-		return array_keys( $this->data );
+		return array_keys($this->data);
 	}
 
 	/**
@@ -292,7 +292,7 @@ 
 	 * @return array
 	 */
 	public function get_extra_data_keys() {
-		return array_keys( $this->extra_data );
+		return array_keys($this->extra_data);
 	}
 
 	/**
@@ -302,8 +302,8 @@ 
 	 * @param mixed $meta Meta value to check.
 	 * @return bool
 	 */
-	protected function filter_null_meta( $meta ) {
-		return ! is_null( $meta->value );
+	protected function filter_null_meta($meta) {
+		return !is_null($meta->value);
 	}
 
 	/**
@@ -314,7 +314,7 @@ 
 	 */
 	public function get_meta_data() {
 		$this->maybe_read_meta_data();
-		return array_values( array_filter( $this->meta_data, array( $this, 'filter_null_meta' ) ) );
+		return array_values(array_filter($this->meta_data, array($this, 'filter_null_meta')));
 	}
 
 	/**
@@ -324,21 +324,21 @@ 
 	 * @param  string $key Key to check.
 	 * @return bool   true if it's an internal key, false otherwise
 	 */
-	protected function is_internal_meta_key( $key ) {
-		$internal_meta_key = ! empty( $key ) && $this->data_store && in_array( $key, $this->data_store->get_internal_meta_keys(), true );
+	protected function is_internal_meta_key($key) {
+		$internal_meta_key = !empty($key) && $this->data_store && in_array($key, $this->data_store->get_internal_meta_keys(), true);
 
-		if ( ! $internal_meta_key ) {
+		if (!$internal_meta_key) {
 			return false;
 		}
 
-		$has_setter_or_getter = is_callable( array( $this, 'set_' . $key ) ) || is_callable( array( $this, 'get_' . $key ) );
+		$has_setter_or_getter = is_callable(array($this, 'set_' . $key)) || is_callable(array($this, 'get_' . $key));
 
-		if ( ! $has_setter_or_getter ) {
+		if (!$has_setter_or_getter) {
 			return false;
 		}
 
 		/* translators: %s: $key Key to check */
-		getpaid_doing_it_wrong( __FUNCTION__, sprintf( __( 'Generic add/update/get meta methods should not be used for internal meta data, including "%s". Use getters and setters.', 'getpaid' ), $key ), '1.0.19' );
+		getpaid_doing_it_wrong(__FUNCTION__, sprintf(__('Generic add/update/get meta methods should not be used for internal meta data, including "%s". Use getters and setters.', 'getpaid'), $key), '1.0.19');
 
 		return true;
 	}
@@ -352,20 +352,20 @@ 
 	 * @access public
 	 *
 	 */
-	public function __set( $key, $value ) {
+	public function __set($key, $value) {
 
-		if ( 'id' == strtolower( $key ) ) {
-			return $this->set_id( $value );
+		if ('id' == strtolower($key)) {
+			return $this->set_id($value);
 		}
 
-		if ( method_exists( $this, "set_$key") ) {
+		if (method_exists($this, "set_$key")) {
 
 			/* translators: %s: $key Key to set */
-			getpaid_doing_it_wrong( __FUNCTION__, sprintf( __( 'Object data such as "%s" should not be accessed directly. Use getters and setters.', 'getpaid' ), $key ), '1.0.19' );
+			getpaid_doing_it_wrong(__FUNCTION__, sprintf(__('Object data such as "%s" should not be accessed directly. Use getters and setters.', 'getpaid'), $key), '1.0.19');
 
-			call_user_func( array( $this, "set_$key" ), $value );
+			call_user_func(array($this, "set_$key"), $value);
 		} else {
-			$this->set_prop( $key, $value );
+			$this->set_prop($key, $value);
 		}
 
 	}
@@ -373,25 +373,25 @@ 
 	/**
      * Margic method for retrieving a property.
      */
-    public function __get( $key ) {
+    public function __get($key) {
 
         // Check if we have a helper method for that.
-        if ( method_exists( $this, 'get_' . $key ) ) {
+        if (method_exists($this, 'get_' . $key)) {
 
-			if ( 'post_type' != $key ) {
+			if ('post_type' != $key) {
 				/* translators: %s: $key Key to set */
-				getpaid_doing_it_wrong( __FUNCTION__, sprintf( __( 'Object data such as "%s" should not be accessed directly. Use getters and setters.', 'getpaid' ), $key ), '1.0.19' );
+				getpaid_doing_it_wrong(__FUNCTION__, sprintf(__('Object data such as "%s" should not be accessed directly. Use getters and setters.', 'getpaid'), $key), '1.0.19');
 			}
 
-            return call_user_func( array( $this, 'get_' . $key ) );
+            return call_user_func(array($this, 'get_' . $key));
         }
 
         // Check if the key is in the associated $post object.
-        if ( ! empty( $this->post ) && isset( $this->post->$key ) ) {
+        if (!empty($this->post) && isset($this->post->$key)) {
             return $this->post->$key;
         }
 
-		return $this->get_prop( $key );
+		return $this->get_prop($key);
 
     }
 
@@ -404,15 +404,15 @@ 
 	 * @param  string $context What the value is for. Valid values are view and edit.
 	 * @return mixed
 	 */
-	public function get_meta( $key = '', $single = true, $context = 'view' ) {
+	public function get_meta($key = '', $single = true, $context = 'view') {
 
 		// Check if this is an internal meta key.
-		$_key = str_replace( '_wpinv', '', $key );
-		$_key = str_replace( 'wpinv', '', $_key );
-		if ( $this->is_internal_meta_key( $_key ) ) {
+		$_key = str_replace('_wpinv', '', $key);
+		$_key = str_replace('wpinv', '', $_key);
+		if ($this->is_internal_meta_key($_key)) {
 			$function = 'get_' . $_key;
 
-			if ( is_callable( array( $this, $function ) ) ) {
+			if (is_callable(array($this, $function))) {
 				return $this->{$function}();
 			}
 		}
@@ -420,20 +420,20 @@ 
 		// Read the meta data if not yet read.
 		$this->maybe_read_meta_data();
 		$meta_data  = $this->get_meta_data();
-		$array_keys = array_keys( wp_list_pluck( $meta_data, 'key' ), $key, true );
+		$array_keys = array_keys(wp_list_pluck($meta_data, 'key'), $key, true);
 		$value      = $single ? '' : array();
 
-		if ( ! empty( $array_keys ) ) {
+		if (!empty($array_keys)) {
 			// We don't use the $this->meta_data property directly here because we don't want meta with a null value (i.e. meta which has been deleted via $this->delete_meta_data()).
-			if ( $single ) {
-				$value = $meta_data[ current( $array_keys ) ]->value;
+			if ($single) {
+				$value = $meta_data[current($array_keys)]->value;
 			} else {
-				$value = array_intersect_key( $meta_data, array_flip( $array_keys ) );
+				$value = array_intersect_key($meta_data, array_flip($array_keys));
 			}
 		}
 
-		if ( 'view' === $context ) {
-			$value = apply_filters( $this->get_hook_prefix() . $key, $value, $this );
+		if ('view' === $context) {
+			$value = apply_filters($this->get_hook_prefix() . $key, $value, $this);
 		}
 
 		return $value;
@@ -446,10 +446,10 @@ 
 	 * @param  string $key Meta Key.
 	 * @return boolean
 	 */
-	public function meta_exists( $key = '' ) {
+	public function meta_exists($key = '') {
 		$this->maybe_read_meta_data();
-		$array_keys = wp_list_pluck( $this->get_meta_data(), 'key' );
-		return in_array( $key, $array_keys, true );
+		$array_keys = wp_list_pluck($this->get_meta_data(), 'key');
+		return in_array($key, $array_keys, true);
 	}
 
 	/**
@@ -458,12 +458,12 @@ 
 	 * @since 1.0.19
 	 * @param array $data Key/Value pairs.
 	 */
-	public function set_meta_data( $data ) {
-		if ( ! empty( $data ) && is_array( $data ) ) {
+	public function set_meta_data($data) {
+		if (!empty($data) && is_array($data)) {
 			$this->maybe_read_meta_data();
-			foreach ( $data as $meta ) {
+			foreach ($data as $meta) {
 				$meta = (array) $meta;
-				if ( isset( $meta['key'], $meta['value'], $meta['id'] ) ) {
+				if (isset($meta['key'], $meta['value'], $meta['id'])) {
 					$this->meta_data[] = new GetPaid_Meta_Data(
 						array(
 							'id'    => $meta['id'],
@@ -485,18 +485,18 @@ 
 	 * @param string|array $value Meta value.
 	 * @param bool         $unique Should this be a unique key?.
 	 */
-	public function add_meta_data( $key, $value, $unique = false ) {
-		if ( $this->is_internal_meta_key( $key ) ) {
+	public function add_meta_data($key, $value, $unique = false) {
+		if ($this->is_internal_meta_key($key)) {
 			$function = 'set_' . $key;
 
-			if ( is_callable( array( $this, $function ) ) ) {
-				return $this->{$function}( $value );
+			if (is_callable(array($this, $function))) {
+				return $this->{$function}($value);
 			}
 		}
 
 		$this->maybe_read_meta_data();
-		if ( $unique ) {
-			$this->delete_meta_data( $key );
+		if ($unique) {
+			$this->delete_meta_data($key);
 		}
 		$this->meta_data[] = new GetPaid_Meta_Data(
 			array(
@@ -515,12 +515,12 @@ 
 	 * @param  string|array $value Meta value.
 	 * @param  int          $meta_id Meta ID.
 	 */
-	public function update_meta_data( $key, $value, $meta_id = 0 ) {
-		if ( $this->is_internal_meta_key( $key ) ) {
+	public function update_meta_data($key, $value, $meta_id = 0) {
+		if ($this->is_internal_meta_key($key)) {
 			$function = 'set_' . $key;
 
-			if ( is_callable( array( $this, $function ) ) ) {
-				return $this->{$function}( $value );
+			if (is_callable(array($this, $function))) {
+				return $this->{$function}($value);
 			}
 		}
 
@@ -528,33 +528,33 @@ 
 
 		$array_key = false;
 
-		if ( $meta_id ) {
-			$array_keys = array_keys( wp_list_pluck( $this->meta_data, 'id' ), $meta_id, true );
-			$array_key  = $array_keys ? current( $array_keys ) : false;
+		if ($meta_id) {
+			$array_keys = array_keys(wp_list_pluck($this->meta_data, 'id'), $meta_id, true);
+			$array_key  = $array_keys ? current($array_keys) : false;
 		} else {
 			// Find matches by key.
 			$matches = array();
-			foreach ( $this->meta_data as $meta_data_array_key => $meta ) {
-				if ( $meta->key === $key ) {
+			foreach ($this->meta_data as $meta_data_array_key => $meta) {
+				if ($meta->key === $key) {
 					$matches[] = $meta_data_array_key;
 				}
 			}
 
-			if ( ! empty( $matches ) ) {
+			if (!empty($matches)) {
 				// Set matches to null so only one key gets the new value.
-				foreach ( $matches as $meta_data_array_key ) {
-					$this->meta_data[ $meta_data_array_key ]->value = null;
+				foreach ($matches as $meta_data_array_key) {
+					$this->meta_data[$meta_data_array_key]->value = null;
 				}
-				$array_key = current( $matches );
+				$array_key = current($matches);
 			}
 		}
 
-		if ( false !== $array_key ) {
-			$meta        = $this->meta_data[ $array_key ];
+		if (false !== $array_key) {
+			$meta        = $this->meta_data[$array_key];
 			$meta->key   = $key;
 			$meta->value = $value;
 		} else {
-			$this->add_meta_data( $key, $value, true );
+			$this->add_meta_data($key, $value, true);
 		}
 	}
 
@@ -564,13 +564,13 @@ 
 	 * @since 1.0.19
 	 * @param string $key Meta key.
 	 */
-	public function delete_meta_data( $key ) {
+	public function delete_meta_data($key) {
 		$this->maybe_read_meta_data();
-		$array_keys = array_keys( wp_list_pluck( $this->meta_data, 'key' ), $key, true );
+		$array_keys = array_keys(wp_list_pluck($this->meta_data, 'key'), $key, true);
 
-		if ( $array_keys ) {
-			foreach ( $array_keys as $array_key ) {
-				$this->meta_data[ $array_key ]->value = null;
+		if ($array_keys) {
+			foreach ($array_keys as $array_key) {
+				$this->meta_data[$array_key]->value = null;
 			}
 		}
 	}
@@ -581,13 +581,13 @@ 
 	 * @since 1.0.19
 	 * @param int $mid Meta ID.
 	 */
-	public function delete_meta_data_by_mid( $mid ) {
+	public function delete_meta_data_by_mid($mid) {
 		$this->maybe_read_meta_data();
-		$array_keys = array_keys( wp_list_pluck( $this->meta_data, 'id' ), (int) $mid, true );
+		$array_keys = array_keys(wp_list_pluck($this->meta_data, 'id'), (int) $mid, true);
 
-		if ( $array_keys ) {
-			foreach ( $array_keys as $array_key ) {
-				$this->meta_data[ $array_key ]->value = null;
+		if ($array_keys) {
+			foreach ($array_keys as $array_key) {
+				$this->meta_data[$array_key]->value = null;
 			}
 		}
 	}
@@ -598,7 +598,7 @@ 
 	 * @since 1.0.19
 	 */
 	protected function maybe_read_meta_data() {
-		if ( is_null( $this->meta_data ) ) {
+		if (is_null($this->meta_data)) {
 			$this->read_meta_data();
 		}
 	}
@@ -610,43 +610,43 @@ 
 	 * @since 1.0.19
 	 * @param bool $force_read True to force a new DB read (and update cache).
 	 */
-	public function read_meta_data( $force_read = false ) {
+	public function read_meta_data($force_read = false) {
 		$this->meta_data = array();
 		$cache_loaded    = false;
 
-		if ( ! $this->get_id() ) {
+		if (!$this->get_id()) {
 			return;
 		}
 
-		if ( ! $this->data_store ) {
+		if (!$this->data_store) {
 			return;
 		}
 
-		if ( ! empty( $this->cache_group ) ) {
-			$cache_key = GetPaid_Cache_Helper::get_cache_prefix( $this->cache_group ) . GetPaid_Cache_Helper::get_cache_prefix( 'object_' . $this->get_id() ) . 'object_meta_' . $this->get_id();
+		if (!empty($this->cache_group)) {
+			$cache_key = GetPaid_Cache_Helper::get_cache_prefix($this->cache_group) . GetPaid_Cache_Helper::get_cache_prefix('object_' . $this->get_id()) . 'object_meta_' . $this->get_id();
 		}
 
-		if ( ! $force_read ) {
-			if ( ! empty( $this->cache_group ) ) {
-				$cached_meta  = wp_cache_get( $cache_key, $this->cache_group );
-				$cache_loaded = ! empty( $cached_meta );
+		if (!$force_read) {
+			if (!empty($this->cache_group)) {
+				$cached_meta  = wp_cache_get($cache_key, $this->cache_group);
+				$cache_loaded = !empty($cached_meta);
 			}
 		}
 
-		$raw_meta_data = $cache_loaded ? $cached_meta : $this->data_store->read_meta( $this );
-		if ( $raw_meta_data ) {
-			foreach ( $raw_meta_data as $meta ) {
+		$raw_meta_data = $cache_loaded ? $cached_meta : $this->data_store->read_meta($this);
+		if ($raw_meta_data) {
+			foreach ($raw_meta_data as $meta) {
 				$this->meta_data[] = new GetPaid_Meta_Data(
 					array(
 						'id'    => (int) $meta->meta_id,
 						'key'   => $meta->meta_key,
-						'value' => maybe_unserialize( $meta->meta_value ),
+						'value' => maybe_unserialize($meta->meta_value),
 					)
 				);
 			}
 
-			if ( ! $cache_loaded && ! empty( $this->cache_group ) ) {
-				wp_cache_set( $cache_key, $raw_meta_data, $this->cache_group );
+			if (!$cache_loaded && !empty($this->cache_group)) {
+				wp_cache_set($cache_key, $raw_meta_data, $this->cache_group);
 			}
 		}
 	}
@@ -657,28 +657,28 @@ 
 	 * @since 1.0.19
 	 */
 	public function save_meta_data() {
-		if ( ! $this->data_store || is_null( $this->meta_data ) ) {
+		if (!$this->data_store || is_null($this->meta_data)) {
 			return;
 		}
-		foreach ( $this->meta_data as $array_key => $meta ) {
-			if ( is_null( $meta->value ) ) {
-				if ( ! empty( $meta->id ) ) {
-					$this->data_store->delete_meta( $this, $meta );
-					unset( $this->meta_data[ $array_key ] );
+		foreach ($this->meta_data as $array_key => $meta) {
+			if (is_null($meta->value)) {
+				if (!empty($meta->id)) {
+					$this->data_store->delete_meta($this, $meta);
+					unset($this->meta_data[$array_key]);
 				}
-			} elseif ( empty( $meta->id ) ) {
-				$meta->id = $this->data_store->add_meta( $this, $meta );
+			} elseif (empty($meta->id)) {
+				$meta->id = $this->data_store->add_meta($this, $meta);
 				$meta->apply_changes();
 			} else {
-				if ( $meta->get_changes() ) {
-					$this->data_store->update_meta( $this, $meta );
+				if ($meta->get_changes()) {
+					$this->data_store->update_meta($this, $meta);
 					$meta->apply_changes();
 				}
 			}
 		}
-		if ( ! empty( $this->cache_group ) ) {
-			$cache_key = GetPaid_Cache_Helper::get_cache_prefix( $this->cache_group ) . GetPaid_Cache_Helper::get_cache_prefix( 'object_' . $this->get_id() ) . 'object_meta_' . $this->get_id();
-			wp_cache_delete( $cache_key, $this->cache_group );
+		if (!empty($this->cache_group)) {
+			$cache_key = GetPaid_Cache_Helper::get_cache_prefix($this->cache_group) . GetPaid_Cache_Helper::get_cache_prefix('object_' . $this->get_id()) . 'object_meta_' . $this->get_id();
+			wp_cache_delete($cache_key, $this->cache_group);
 		}
 	}
 
@@ -688,8 +688,8 @@ 
 	 * @since 1.0.19
 	 * @param int $id ID.
 	 */
-	public function set_id( $id ) {
-		$this->id = absint( $id );
+	public function set_id($id) {
+		$this->id = absint($id);
 	}
 
 	/**
@@ -699,10 +699,10 @@ 
 	 * @param string $status New status.
 	 * @return array details of change.
 	 */
-	public function set_status( $status ) {
+	public function set_status($status) {
         $old_status = $this->get_status();
 
-		$this->set_prop( 'status', $status );
+		$this->set_prop('status', $status);
 
 		return array(
 			'from' => $old_status,
@@ -718,7 +718,7 @@ 
 	public function set_defaults() {
 		$this->data    = $this->default_data;
 		$this->changes = array();
-		$this->set_object_read( false );
+		$this->set_object_read(false);
 	}
 
 	/**
@@ -727,7 +727,7 @@ 
 	 * @since 1.0.19
 	 * @param boolean $read Should read?.
 	 */
-	public function set_object_read( $read = true ) {
+	public function set_object_read($read = true) {
 		$this->object_read = (bool) $read;
 	}
 
@@ -752,32 +752,32 @@ 
 	 *
 	 * @return bool|WP_Error
 	 */
-	public function set_props( $props, $context = 'set' ) {
+	public function set_props($props, $context = 'set') {
 		$errors = false;
 
-		foreach ( $props as $prop => $value ) {
+		foreach ($props as $prop => $value) {
 			try {
 				/**
 				 * Checks if the prop being set is allowed, and the value is not null.
 				 */
-				if ( is_null( $value ) || in_array( $prop, array( 'prop', 'date_prop', 'meta_data' ), true ) ) {
+				if (is_null($value) || in_array($prop, array('prop', 'date_prop', 'meta_data'), true)) {
 					continue;
 				}
 				$setter = "set_$prop";
 
-				if ( is_callable( array( $this, $setter ) ) ) {
-					$this->{$setter}( $value );
+				if (is_callable(array($this, $setter))) {
+					$this->{$setter}($value);
 				}
-			} catch ( Exception $e ) {
-				if ( ! $errors ) {
+			} catch (Exception $e) {
+				if (!$errors) {
 					$errors = new WP_Error();
 				}
-				$errors->add( $e->getCode(), $e->getMessage() );
+				$errors->add($e->getCode(), $e->getMessage());
 				$this->last_error = $e->getMessage();
 			}
 		}
 
-		return $errors && count( $errors->get_error_codes() ) ? $errors : true;
+		return $errors && count($errors->get_error_codes()) ? $errors : true;
 	}
 
 	/**
@@ -790,14 +790,14 @@ 
 	 * @param string $prop Name of prop to set.
 	 * @param mixed  $value Value of the prop.
 	 */
-	protected function set_prop( $prop, $value ) {
-		if ( array_key_exists( $prop, $this->data ) ) {
-			if ( true === $this->object_read ) {
-				if ( $value !== $this->data[ $prop ] || array_key_exists( $prop, $this->changes ) ) {
-					$this->changes[ $prop ] = maybe_unserialize( $value );
+	protected function set_prop($prop, $value) {
+		if (array_key_exists($prop, $this->data)) {
+			if (true === $this->object_read) {
+				if ($value !== $this->data[$prop] || array_key_exists($prop, $this->changes)) {
+					$this->changes[$prop] = maybe_unserialize($value);
 				}
 			} else {
-				$this->data[ $prop ] = maybe_unserialize( $value );
+				$this->data[$prop] = maybe_unserialize($value);
 			}
 		}
 	}
@@ -818,7 +818,7 @@ 
 	 * @since 1.0.19
 	 */
 	public function apply_changes() {
-		$this->data    = array_replace_recursive( $this->data, $this->changes );
+		$this->data    = array_replace_recursive($this->data, $this->changes);
 		$this->changes = array();
 	}
 
@@ -843,14 +843,14 @@ 
 	 * @param  string $context What the value is for. Valid values are view and edit.
 	 * @return mixed
 	 */
-	protected function get_prop( $prop, $context = 'view' ) {
+	protected function get_prop($prop, $context = 'view') {
 		$value = null;
 
-		if ( array_key_exists( $prop, $this->data ) ) {
-			$value = array_key_exists( $prop, $this->changes ) ? $this->changes[ $prop ] : $this->data[ $prop ];
+		if (array_key_exists($prop, $this->data)) {
+			$value = array_key_exists($prop, $this->changes) ? $this->changes[$prop] : $this->data[$prop];
 
-			if ( 'view' === $context ) {
-				$value = apply_filters( $this->get_hook_prefix() . $prop, $value, $this );
+			if ('view' === $context) {
+				$value = apply_filters($this->get_hook_prefix() . $prop, $value, $this);
 			}
 		}
 
@@ -864,13 +864,13 @@ 
 	 * @param string         $prop Name of prop to set.
 	 * @param string|integer $value Value of the prop.
 	 */
-	protected function set_date_prop( $prop, $value ) {
+	protected function set_date_prop($prop, $value) {
 
-		if ( empty( $value ) ) {
-			$this->set_prop( $prop, null );
+		if (empty($value)) {
+			$this->set_prop($prop, null);
 			return;
 		}
-		$this->set_prop( $prop, $value );
+		$this->set_prop($prop, $value);
 
 	}
 
@@ -881,7 +881,7 @@ 
 	 * @param string $code             Error code.
 	 * @param string $message          Error message.
 	 */
-	protected function error( $code, $message ) {
+	protected function error($code, $message) {
 		$this->last_error = $message;
 	}
 
@@ -893,7 +893,7 @@ 
 	 */
 	public function exists() {
 		$id = $this->get_id();
-		return ! empty( $id );
+		return !empty($id);
 	}
 
 }

includes/class-wpinv.php

Spacing +271 added lines, -271 removed lines

@@ -7,15 +7,15 @@ 
  */
  
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
 class WPInv_Plugin {
     private static $instance;
     
     public static function run() {
-        if ( !isset( self::$instance ) && !( self::$instance instanceof WPInv_Plugin ) ) {
+        if (!isset(self::$instance) && !(self::$instance instanceof WPInv_Plugin)) {
             self::$instance = new WPInv_Plugin;
             self::$instance->includes();
             self::$instance->actions();
@@ -33,35 +33,35 @@ 
     }
     
     public function define_constants() {
-        define( 'WPINV_PLUGIN_DIR', plugin_dir_path( WPINV_PLUGIN_FILE ) );
-        define( 'WPINV_PLUGIN_URL', plugin_dir_url( WPINV_PLUGIN_FILE ) );
+        define('WPINV_PLUGIN_DIR', plugin_dir_path(WPINV_PLUGIN_FILE));
+        define('WPINV_PLUGIN_URL', plugin_dir_url(WPINV_PLUGIN_FILE));
     }
 
     private function actions() {
         /* Internationalize the text strings used. */
-        add_action( 'plugins_loaded', array( &$this, 'plugins_loaded' ) );
+        add_action('plugins_loaded', array(&$this, 'plugins_loaded'));
         
         /* Perform actions on admin initialization. */
-        add_action( 'admin_init', array( &$this, 'admin_init') );
-        add_action( 'init', array( &$this, 'init' ), 3 );
-        add_action( 'init', array( &$this, 'wpinv_actions' ) );
+        add_action('admin_init', array(&$this, 'admin_init'));
+        add_action('init', array(&$this, 'init'), 3);
+        add_action('init', array(&$this, 'wpinv_actions'));
         
-        if ( class_exists( 'BuddyPress' ) ) {
-            add_action( 'bp_include', array( &$this, 'bp_invoicing_init' ) );
+        if (class_exists('BuddyPress')) {
+            add_action('bp_include', array(&$this, 'bp_invoicing_init'));
         }
 
-        add_action( 'wp_enqueue_scripts', array( &$this, 'enqueue_scripts' ) );
-        add_action( 'wp_footer', array( &$this, 'wp_footer' ) );
-        add_action( 'widgets_init', array( &$this, 'register_widgets' ) );
-        add_filter( 'wpseo_exclude_from_sitemap_by_post_ids', array( $this, 'wpseo_exclude_from_sitemap_by_post_ids' ) );
+        add_action('wp_enqueue_scripts', array(&$this, 'enqueue_scripts'));
+        add_action('wp_footer', array(&$this, 'wp_footer'));
+        add_action('widgets_init', array(&$this, 'register_widgets'));
+        add_filter('wpseo_exclude_from_sitemap_by_post_ids', array($this, 'wpseo_exclude_from_sitemap_by_post_ids'));
 
-        if ( is_admin() ) {
-            add_action( 'admin_enqueue_scripts', array( &$this, 'admin_enqueue_scripts' ) );
-            add_filter( 'admin_body_class', array( &$this, 'admin_body_class' ) );
-            add_action( 'admin_init', array( &$this, 'init_ayecode_connect_helper' ) );
+        if (is_admin()) {
+            add_action('admin_enqueue_scripts', array(&$this, 'admin_enqueue_scripts'));
+            add_filter('admin_body_class', array(&$this, 'admin_body_class'));
+            add_action('admin_init', array(&$this, 'init_ayecode_connect_helper'));
 
         } else {
-            add_filter( 'pre_get_posts', array( &$this, 'pre_get_posts' ) );
+            add_filter('pre_get_posts', array(&$this, 'pre_get_posts'));
         }
         
         /**
@@ -71,28 +71,28 @@ 
          *
          * @param WPInv_Plugin $this. Current WPInv_Plugin instance. Passed by reference.
          */
-        do_action_ref_array( 'wpinv_actions', array( &$this ) );
+        do_action_ref_array('wpinv_actions', array(&$this));
 
-        add_action( 'admin_init', array( &$this, 'activation_redirect') );
+        add_action('admin_init', array(&$this, 'activation_redirect'));
     }
 
     /**
      * Maybe show the AyeCode Connect Notice.
      */
-    public function init_ayecode_connect_helper(){
+    public function init_ayecode_connect_helper() {
         // AyeCode Connect notice
-        if ( is_admin() ){
+        if (is_admin()) {
             // set the strings so they can be translated
             $strings = array(
-                'connect_title' => __("WP Invoicing - an AyeCode product!","invoicing"),
-                'connect_external'  => __( "Please confirm you wish to connect your site?","invoicing" ),
-                'connect'           => sprintf( __( "<strong>Have a license?</strong> Forget about entering license keys or downloading zip files, connect your site for instant access. %slearn more%s","invoicing" ),"<a href='https://ayecode.io/introducing-ayecode-connect/' target='_blank'>","</a>" ),
-                'connect_button'    => __("Connect Site","invoicing"),
-                'connecting_button'    => __("Connecting...","invoicing"),
-                'error_localhost'   => __( "This service will only work with a live domain, not a localhost.","invoicing" ),
-                'error'             => __( "Something went wrong, please refresh and try again.","invoicing" ),
+                'connect_title' => __("WP Invoicing - an AyeCode product!", "invoicing"),
+                'connect_external'  => __("Please confirm you wish to connect your site?", "invoicing"),
+                'connect'           => sprintf(__("<strong>Have a license?</strong> Forget about entering license keys or downloading zip files, connect your site for instant access. %slearn more%s", "invoicing"), "<a href='https://ayecode.io/introducing-ayecode-connect/' target='_blank'>", "</a>"),
+                'connect_button'    => __("Connect Site", "invoicing"),
+                'connecting_button'    => __("Connecting...", "invoicing"),
+                'error_localhost'   => __("This service will only work with a live domain, not a localhost.", "invoicing"),
+                'error'             => __("Something went wrong, please refresh and try again.", "invoicing"),
             );
-            new AyeCode_Connect_Helper($strings,array('wpi-addons'));
+            new AyeCode_Connect_Helper($strings, array('wpi-addons'));
         }
     }
     
@@ -100,10 +100,10 @@ 
         /* Internationalize the text strings used. */
         $this->load_textdomain();
 
-        do_action( 'wpinv_loaded' );
+        do_action('wpinv_loaded');
 
         // Fix oxygen page builder conflict
-        if ( function_exists( 'ct_css_output' ) ) {
+        if (function_exists('ct_css_output')) {
             wpinv_oxygen_fix_conflict();
         }
     }
@@ -113,144 +113,144 @@ 
      *
      * @since 1.0
      */
-    public function load_textdomain( $locale = NULL ) {
-        if ( empty( $locale ) ) {
-            $locale = is_admin() && function_exists( 'get_user_locale' ) ? get_user_locale() : get_locale();
+    public function load_textdomain($locale = NULL) {
+        if (empty($locale)) {
+            $locale = is_admin() && function_exists('get_user_locale') ? get_user_locale() : get_locale();
         }
 
-        $locale = apply_filters( 'plugin_locale', $locale, 'invoicing' );
+        $locale = apply_filters('plugin_locale', $locale, 'invoicing');
         
-        unload_textdomain( 'invoicing' );
-        load_textdomain( 'invoicing', WP_LANG_DIR . '/invoicing/invoicing-' . $locale . '.mo' );
-        load_plugin_textdomain( 'invoicing', false, WPINV_PLUGIN_DIR . 'languages' );
+        unload_textdomain('invoicing');
+        load_textdomain('invoicing', WP_LANG_DIR . '/invoicing/invoicing-' . $locale . '.mo');
+        load_plugin_textdomain('invoicing', false, WPINV_PLUGIN_DIR . 'languages');
         
         /**
          * Define language constants.
          */
-        require_once( WPINV_PLUGIN_DIR . 'language.php' );
+        require_once(WPINV_PLUGIN_DIR . 'language.php');
     }
 
     public function includes() {
         global $wpinv_options;
 
-        require_once( WPINV_PLUGIN_DIR . 'includes/admin/register-settings.php' );
+        require_once(WPINV_PLUGIN_DIR . 'includes/admin/register-settings.php');
         $wpinv_options = wpinv_get_settings();
 
         // Load composer packages.
-        require_once( WPINV_PLUGIN_DIR . 'vendor/autoload.php' );
+        require_once(WPINV_PLUGIN_DIR . 'vendor/autoload.php');
 
         // load AUI
-        require_once( WPINV_PLUGIN_DIR . 'vendor/ayecode/wp-ayecode-ui/ayecode-ui-loader.php' );
+        require_once(WPINV_PLUGIN_DIR . 'vendor/ayecode/wp-ayecode-ui/ayecode-ui-loader.php');
 
         // Load the action scheduler.
-        require_once( WPINV_PLUGIN_DIR . 'includes/libraries/action-scheduler/action-scheduler.php' );
+        require_once(WPINV_PLUGIN_DIR . 'includes/libraries/action-scheduler/action-scheduler.php');
 
         // Load functions.
-        require_once( WPINV_PLUGIN_DIR . 'includes/deprecated-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-email-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-general-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-helper-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-tax-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-template-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-address-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/invoice-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-item-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-discount-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-gateway-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-payment-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-user-functions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-error-functions.php' );
+        require_once(WPINV_PLUGIN_DIR . 'includes/deprecated-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-email-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-general-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-helper-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-tax-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-template-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-address-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/invoice-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-item-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-discount-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-gateway-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-payment-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-user-functions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-error-functions.php');
 
         // Register autoloader.
 		try {
-			spl_autoload_register( array( $this, 'autoload' ), true );
-		} catch ( Exception $e ) {
-			wpinv_error_log( $e->getMessage(), '', __FILE__, 149, true );
-        }
-
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-getpaid-post-types.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-post-types.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-invoice.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-discount.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-item.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-notes.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-session.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-session-handler.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-ajax.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-api.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-reports.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-cache-helper.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-db.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/admin/subscriptions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions-db.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/wpinv-subscription.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-subscriptions-list-table.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-privacy.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-privacy.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/libraries/class-ayecode-addons.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-addons.php' );
-	    require_once( WPINV_PLUGIN_DIR . 'widgets/checkout.php' );
-	    require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-history.php' );
-	    require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-receipt.php' );
-	    require_once( WPINV_PLUGIN_DIR . 'widgets/invoice-messages.php' );
-	    require_once( WPINV_PLUGIN_DIR . 'widgets/subscriptions.php' );
-        require_once( WPINV_PLUGIN_DIR . 'widgets/buy-item.php' );
-        require_once( WPINV_PLUGIN_DIR . 'widgets/getpaid.php' );
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-payment-form-elements.php' );
-
-        if ( !class_exists( 'WPInv_EUVat' ) ) {
-            require_once( WPINV_PLUGIN_DIR . 'includes/libraries/wpinv-euvat/class-wpinv-euvat.php' );
+			spl_autoload_register(array($this, 'autoload'), true);
+		} catch (Exception $e) {
+			wpinv_error_log($e->getMessage(), '', __FILE__, 149, true);
+        }
+
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-getpaid-post-types.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-post-types.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-invoice.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-discount.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-item.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-notes.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-session.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-session-handler.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-ajax.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-api.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-reports.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-cache-helper.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-db.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/admin/subscriptions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions-db.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-subscriptions.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/wpinv-subscription.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-subscriptions-list-table.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/abstracts/abstract-wpinv-privacy.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-privacy.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/libraries/class-ayecode-addons.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-addons.php');
+	    require_once(WPINV_PLUGIN_DIR . 'widgets/checkout.php');
+	    require_once(WPINV_PLUGIN_DIR . 'widgets/invoice-history.php');
+	    require_once(WPINV_PLUGIN_DIR . 'widgets/invoice-receipt.php');
+	    require_once(WPINV_PLUGIN_DIR . 'widgets/invoice-messages.php');
+	    require_once(WPINV_PLUGIN_DIR . 'widgets/subscriptions.php');
+        require_once(WPINV_PLUGIN_DIR . 'widgets/buy-item.php');
+        require_once(WPINV_PLUGIN_DIR . 'widgets/getpaid.php');
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-payment-form-elements.php');
+
+        if (!class_exists('WPInv_EUVat')) {
+            require_once(WPINV_PLUGIN_DIR . 'includes/libraries/wpinv-euvat/class-wpinv-euvat.php');
         }
         
-        $gateways = array_keys( wpinv_get_enabled_payment_gateways() );
-        if ( !empty( $gateways ) ) {
-            foreach ( $gateways as $gateway ) {
-                if ( $gateway == 'manual' ) {
+        $gateways = array_keys(wpinv_get_enabled_payment_gateways());
+        if (!empty($gateways)) {
+            foreach ($gateways as $gateway) {
+                if ($gateway == 'manual') {
                     continue;
                 }
                 
                 $gateway_file = WPINV_PLUGIN_DIR . 'includes/gateways/' . $gateway . '.php';
                 
-                if ( file_exists( $gateway_file ) ) {
-                    require_once( $gateway_file );
+                if (file_exists($gateway_file)) {
+                    require_once($gateway_file);
                 }
             }
         }
-        require_once( WPINV_PLUGIN_DIR . 'includes/gateways/manual.php' );
+        require_once(WPINV_PLUGIN_DIR . 'includes/gateways/manual.php');
         
-        if ( is_admin() || ( defined( 'WP_CLI' ) && WP_CLI ) ) {
+        if (is_admin() || (defined('WP_CLI') && WP_CLI)) {
             GetPaid_Post_Types_Admin::init();
 
-            require_once( WPINV_PLUGIN_DIR . 'includes/admin/wpinv-upgrade-functions.php' );
-            require_once( WPINV_PLUGIN_DIR . 'includes/admin/wpinv-admin-functions.php' );
+            require_once(WPINV_PLUGIN_DIR . 'includes/admin/wpinv-upgrade-functions.php');
+            require_once(WPINV_PLUGIN_DIR . 'includes/admin/wpinv-admin-functions.php');
             //require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-recurring-admin.php' );
-            require_once( WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-payment-form.php' );
-            require_once( WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-invoice-notes.php' );
-            require_once( WPINV_PLUGIN_DIR . 'includes/admin/admin-pages.php' );
-            require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-admin-menus.php' );
-            require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-users.php' );
-            require_once( WPINV_PLUGIN_DIR . 'includes/admin/class-getpaid-admin-profile.php' );
+            require_once(WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-payment-form.php');
+            require_once(WPINV_PLUGIN_DIR . 'includes/admin/meta-boxes/class-mb-invoice-notes.php');
+            require_once(WPINV_PLUGIN_DIR . 'includes/admin/admin-pages.php');
+            require_once(WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-admin-menus.php');
+            require_once(WPINV_PLUGIN_DIR . 'includes/admin/class-wpinv-users.php');
+            require_once(WPINV_PLUGIN_DIR . 'includes/admin/class-getpaid-admin-profile.php');
             //require_once( WPINV_PLUGIN_DIR . 'includes/admin/subscriptions.php' );
             // load the user class only on the users.php page
             global $pagenow;
-            if($pagenow=='users.php'){
+            if ($pagenow == 'users.php') {
                 new WPInv_Admin_Users();
             }
         }
 
         // Register cli commands
-        if ( defined( 'WP_CLI' ) && WP_CLI ) {
-            require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-cli.php' );
-            WP_CLI::add_command( 'invoicing', 'WPInv_CLI' );
+        if (defined('WP_CLI') && WP_CLI) {
+            require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-cli.php');
+            WP_CLI::add_command('invoicing', 'WPInv_CLI');
         }
         
         // include css inliner
-        if ( ! class_exists( 'Emogrifier' ) && class_exists( 'DOMDocument' ) ) {
-            include_once( WPINV_PLUGIN_DIR . 'includes/libraries/class-emogrifier.php' );
+        if (!class_exists('Emogrifier') && class_exists('DOMDocument')) {
+            include_once(WPINV_PLUGIN_DIR . 'includes/libraries/class-emogrifier.php');
         }
         
-        require_once( WPINV_PLUGIN_DIR . 'includes/admin/install.php' );
+        require_once(WPINV_PLUGIN_DIR . 'includes/admin/install.php');
     }
 
     /**
@@ -261,18 +261,18 @@ 
 	 * @since       1.0.19
 	 * @return      void
 	 */
-	public function autoload( $class_name ) {
+	public function autoload($class_name) {
 
 		// Normalize the class name...
-		$class_name  = strtolower( $class_name );
+		$class_name = strtolower($class_name);
 
 		// ... and make sure it is our class.
-		if ( false === strpos( $class_name, 'getpaid_' ) && false === strpos( $class_name, 'wpinv_' ) ) {
+		if (false === strpos($class_name, 'getpaid_') && false === strpos($class_name, 'wpinv_')) {
 			return;
 		}
 
 		// Next, prepare the file name from the class.
-		$file_name = 'class-' . str_replace( '_', '-', $class_name ) . '.php';
+		$file_name = 'class-' . str_replace('_', '-', $class_name) . '.php';
 
 		// And an array of possible locations in order of importance.
 		$locations = array(
@@ -283,11 +283,11 @@ 
 		);
 
 		// Base path of the classes.
-		$plugin_path = untrailingslashit( WPINV_PLUGIN_DIR );
+		$plugin_path = untrailingslashit(WPINV_PLUGIN_DIR);
 
-		foreach ( $locations as $location ) {
+		foreach ($locations as $location) {
 
-			if ( file_exists( "$plugin_path/$location/$file_name" ) ) {
+			if (file_exists("$plugin_path/$location/$file_name")) {
 				include "$plugin_path/$location/$file_name";
 				break;
 			}
@@ -301,117 +301,117 @@ 
     
     public function admin_init() {
         self::$instance->default_payment_form = wpinv_get_default_payment_form();
-        add_action( 'admin_print_scripts-edit.php', array( &$this, 'admin_print_scripts_edit_php' ) );
+        add_action('admin_print_scripts-edit.php', array(&$this, 'admin_print_scripts_edit_php'));
     }
 
     public function activation_redirect() {
         // Bail if no activation redirect
-        if ( !get_transient( '_wpinv_activation_redirect' ) ) {
+        if (!get_transient('_wpinv_activation_redirect')) {
             return;
         }
 
         // Delete the redirect transient
-        delete_transient( '_wpinv_activation_redirect' );
+        delete_transient('_wpinv_activation_redirect');
 
         // Bail if activating from network, or bulk
-        if ( is_network_admin() || isset( $_GET['activate-multi'] ) ) {
+        if (is_network_admin() || isset($_GET['activate-multi'])) {
             return;
         }
 
-        wp_safe_redirect( admin_url( 'admin.php?page=wpinv-settings&tab=general' ) );
+        wp_safe_redirect(admin_url('admin.php?page=wpinv-settings&tab=general'));
         exit;
     }
     
     public function enqueue_scripts() {
-        $suffix       = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
+        $suffix = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
         
-        $version = filemtime( WPINV_PLUGIN_DIR . 'assets/css/invoice-front.css' );
-        wp_register_style( 'wpinv_front_style', WPINV_PLUGIN_URL . 'assets/css/invoice-front.css', array(), $version );
-        wp_enqueue_style( 'wpinv_front_style' );
+        $version = filemtime(WPINV_PLUGIN_DIR . 'assets/css/invoice-front.css');
+        wp_register_style('wpinv_front_style', WPINV_PLUGIN_URL . 'assets/css/invoice-front.css', array(), $version);
+        wp_enqueue_style('wpinv_front_style');
                
         // Register scripts
-        wp_register_script( 'jquery-blockui', WPINV_PLUGIN_URL . 'assets/js/jquery.blockUI.min.js', array( 'jquery' ), '2.70', true );
-        wp_register_script( 'wpinv-front-script', WPINV_PLUGIN_URL . 'assets/js/invoice-front.js', array( 'jquery' ),  filemtime( WPINV_PLUGIN_DIR . 'assets/js/invoice-front.js' ) );
+        wp_register_script('jquery-blockui', WPINV_PLUGIN_URL . 'assets/js/jquery.blockUI.min.js', array('jquery'), '2.70', true);
+        wp_register_script('wpinv-front-script', WPINV_PLUGIN_URL . 'assets/js/invoice-front.js', array('jquery'), filemtime(WPINV_PLUGIN_DIR . 'assets/js/invoice-front.js'));
 
         $localize                         = array();
-        $localize['ajax_url']             = admin_url( 'admin-ajax.php' );
-        $localize['nonce']                = wp_create_nonce( 'wpinv-nonce' );
+        $localize['ajax_url']             = admin_url('admin-ajax.php');
+        $localize['nonce']                = wp_create_nonce('wpinv-nonce');
         $localize['currency_symbol']      = wpinv_currency_symbol();
         $localize['currency_pos']         = wpinv_currency_position();
         $localize['thousand_sep']         = wpinv_thousands_separator();
         $localize['decimal_sep']          = wpinv_decimal_separator();
         $localize['decimals']             = wpinv_decimals();
-        $localize['txtComplete']          = __( 'Continue', 'invoicing' );
+        $localize['txtComplete']          = __('Continue', 'invoicing');
         $localize['UseTaxes']             = wpinv_use_taxes();
-        $localize['checkoutNonce']        = wp_create_nonce( 'wpinv_checkout_nonce' );
-        $localize['formNonce']            = wp_create_nonce( 'getpaid_form_nonce' );
-        $localize['connectionError']      = __( 'Could not establish a connection to the server.', 'invoicing' );
+        $localize['checkoutNonce']        = wp_create_nonce('wpinv_checkout_nonce');
+        $localize['formNonce']            = wp_create_nonce('getpaid_form_nonce');
+        $localize['connectionError']      = __('Could not establish a connection to the server.', 'invoicing');
 
-        $localize = apply_filters( 'wpinv_front_js_localize', $localize );
+        $localize = apply_filters('wpinv_front_js_localize', $localize);
         
-        wp_enqueue_script( 'jquery-blockui' );
+        wp_enqueue_script('jquery-blockui');
         $autofill_api = wpinv_get_option('address_autofill_api');
         $autofill_active = wpinv_get_option('address_autofill_active');
-        if ( isset( $autofill_active ) && 1 == $autofill_active && !empty( $autofill_api ) && wpinv_is_checkout() ) {
-            if ( wp_script_is( 'google-maps-api', 'enqueued' ) ) {
-                wp_dequeue_script( 'google-maps-api' );
+        if (isset($autofill_active) && 1 == $autofill_active && !empty($autofill_api) && wpinv_is_checkout()) {
+            if (wp_script_is('google-maps-api', 'enqueued')) {
+                wp_dequeue_script('google-maps-api');
             }
-            wp_enqueue_script( 'google-maps-api', 'https://maps.googleapis.com/maps/api/js?key=' . $autofill_api . '&libraries=places', array( 'jquery' ), '', false );
-            wp_enqueue_script( 'google-maps-init', WPINV_PLUGIN_URL . 'assets/js/gaaf.js', array( 'jquery', 'google-maps-api' ), '', true );
+            wp_enqueue_script('google-maps-api', 'https://maps.googleapis.com/maps/api/js?key=' . $autofill_api . '&libraries=places', array('jquery'), '', false);
+            wp_enqueue_script('google-maps-init', WPINV_PLUGIN_URL . 'assets/js/gaaf.js', array('jquery', 'google-maps-api'), '', true);
         }
 
-        wp_enqueue_style( "select2", WPINV_PLUGIN_URL . 'assets/css/select2/select2.css', array(), WPINV_VERSION, 'all' );
-        wp_enqueue_script('select2', WPINV_PLUGIN_URL . 'assets/js/select2/select2.full' . $suffix . '.js', array( 'jquery' ), WPINV_VERSION );
+        wp_enqueue_style("select2", WPINV_PLUGIN_URL . 'assets/css/select2/select2.css', array(), WPINV_VERSION, 'all');
+        wp_enqueue_script('select2', WPINV_PLUGIN_URL . 'assets/js/select2/select2.full' . $suffix . '.js', array('jquery'), WPINV_VERSION);
 
-        wp_enqueue_script( 'wpinv-front-script' );
-        wp_localize_script( 'wpinv-front-script', 'WPInv', $localize );
+        wp_enqueue_script('wpinv-front-script');
+        wp_localize_script('wpinv-front-script', 'WPInv', $localize);
 
-        $version = filemtime( WPINV_PLUGIN_DIR . 'assets/js/payment-forms.js' );
-        wp_enqueue_script( 'wpinv-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/payment-forms.js', array( 'wpinv-front-script', 'wp-hooks' ),  $version, true );
+        $version = filemtime(WPINV_PLUGIN_DIR . 'assets/js/payment-forms.js');
+        wp_enqueue_script('wpinv-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/payment-forms.js', array('wpinv-front-script', 'wp-hooks'), $version, true);
     }
 
-    public function admin_enqueue_scripts( $hook ) {
+    public function admin_enqueue_scripts($hook) {
         global $post, $pagenow;
         
         $post_type  = wpinv_admin_post_type();
-        $suffix     = defined( 'SCRIPT_DEBUG' ) && SCRIPT_DEBUG ? '' : '.min';
-        $page       = isset( $_GET['page'] ) ? strtolower( $_GET['page'] ) : '';
+        $suffix     = defined('SCRIPT_DEBUG') && SCRIPT_DEBUG ? '' : '.min';
+        $page       = isset($_GET['page']) ? strtolower($_GET['page']) : '';
 
         $jquery_ui_css = false;
-        if ( ( $post_type == 'wpi_invoice' || $post_type == 'wpi_quote' || $post_type == 'wpi_discount' ) && ( $pagenow == 'post-new.php' || $pagenow == 'post.php' ) ) {
+        if (($post_type == 'wpi_invoice' || $post_type == 'wpi_quote' || $post_type == 'wpi_discount') && ($pagenow == 'post-new.php' || $pagenow == 'post.php')) {
             $jquery_ui_css = true;
-        } else if ( $page == 'wpinv-settings' || $page == 'wpinv-reports' ) {
+        } else if ($page == 'wpinv-settings' || $page == 'wpinv-reports') {
             $jquery_ui_css = true;
         }
-        if ( $jquery_ui_css ) {
-            wp_register_style( 'jquery-ui-css', WPINV_PLUGIN_URL . 'assets/css/jquery-ui' . $suffix . '.css', array(), '1.8.16' );
-            wp_enqueue_style( 'jquery-ui-css' );
-            wp_deregister_style( 'yoast-seo-select2' );
-	        wp_deregister_style( 'yoast-seo-monorepo' );
+        if ($jquery_ui_css) {
+            wp_register_style('jquery-ui-css', WPINV_PLUGIN_URL . 'assets/css/jquery-ui' . $suffix . '.css', array(), '1.8.16');
+            wp_enqueue_style('jquery-ui-css');
+            wp_deregister_style('yoast-seo-select2');
+	        wp_deregister_style('yoast-seo-monorepo');
         }
 
-        wp_register_style( 'wpinv_meta_box_style', WPINV_PLUGIN_URL . 'assets/css/meta-box.css', array(), WPINV_VERSION );
-        wp_enqueue_style( 'wpinv_meta_box_style' );
+        wp_register_style('wpinv_meta_box_style', WPINV_PLUGIN_URL . 'assets/css/meta-box.css', array(), WPINV_VERSION);
+        wp_enqueue_style('wpinv_meta_box_style');
         
-        $version = filemtime( WPINV_PLUGIN_DIR . 'assets/css/admin.css' );
-        wp_register_style( 'wpinv_admin_style', WPINV_PLUGIN_URL . 'assets/css/admin.css', array(), $version );
-        wp_enqueue_style( 'wpinv_admin_style' );
+        $version = filemtime(WPINV_PLUGIN_DIR . 'assets/css/admin.css');
+        wp_register_style('wpinv_admin_style', WPINV_PLUGIN_URL . 'assets/css/admin.css', array(), $version);
+        wp_enqueue_style('wpinv_admin_style');
 
-        $enqueue = ( $post_type == 'wpi_discount' || $post_type == 'wpi_invoice' && ( $pagenow == 'post-new.php' || $pagenow == 'post.php' ) );
-        if ( $page == 'wpinv-subscriptions' ) {
-            wp_enqueue_script( 'jquery-ui-datepicker' );
-            wp_deregister_style( 'yoast-seo-select2' );
-	        wp_deregister_style( 'yoast-seo-monorepo' );
+        $enqueue = ($post_type == 'wpi_discount' || $post_type == 'wpi_invoice' && ($pagenow == 'post-new.php' || $pagenow == 'post.php'));
+        if ($page == 'wpinv-subscriptions') {
+            wp_enqueue_script('jquery-ui-datepicker');
+            wp_deregister_style('yoast-seo-select2');
+	        wp_deregister_style('yoast-seo-monorepo');
         }
         
-        if ( $enqueue_datepicker = apply_filters( 'wpinv_admin_enqueue_jquery_ui_datepicker', $enqueue ) ) {
-            wp_enqueue_script( 'jquery-ui-datepicker' );
+        if ($enqueue_datepicker = apply_filters('wpinv_admin_enqueue_jquery_ui_datepicker', $enqueue)) {
+            wp_enqueue_script('jquery-ui-datepicker');
         }
 
-        wp_enqueue_style( 'wp-color-picker' );
-        wp_enqueue_script( 'wp-color-picker' );
+        wp_enqueue_style('wp-color-picker');
+        wp_enqueue_script('wp-color-picker');
         
-        wp_register_script( 'jquery-blockui', WPINV_PLUGIN_URL . 'assets/js/jquery.blockUI.min.js', array( 'jquery' ), '2.70', true );
+        wp_register_script('jquery-blockui', WPINV_PLUGIN_URL . 'assets/js/jquery.blockUI.min.js', array('jquery'), '2.70', true);
 
         if (($post_type == 'wpi_invoice' || $post_type == 'wpi_quote') && ($pagenow == 'post-new.php' || $pagenow == 'post.php')) {
             $autofill_api = wpinv_get_option('address_autofill_api');
@@ -422,21 +422,21 @@ 
             }
         }
 
-        wp_enqueue_style( "select2", WPINV_PLUGIN_URL . 'assets/css/select2/select2.css', array(), WPINV_VERSION, 'all' );
-        wp_enqueue_script('select2', WPINV_PLUGIN_URL . 'assets/js/select2/select2.full' . $suffix . '.js', array( 'jquery' ), WPINV_VERSION );
+        wp_enqueue_style("select2", WPINV_PLUGIN_URL . 'assets/css/select2/select2.css', array(), WPINV_VERSION, 'all');
+        wp_enqueue_script('select2', WPINV_PLUGIN_URL . 'assets/js/select2/select2.full' . $suffix . '.js', array('jquery'), WPINV_VERSION);
 
-        $version = filemtime( WPINV_PLUGIN_DIR . 'assets/js/admin.js' );
-        wp_register_script( 'wpinv-admin-script', WPINV_PLUGIN_URL . 'assets/js/admin.js', array( 'jquery', 'jquery-blockui','jquery-ui-tooltip' ),  $version );
-        wp_enqueue_script( 'wpinv-admin-script' );
+        $version = filemtime(WPINV_PLUGIN_DIR . 'assets/js/admin.js');
+        wp_register_script('wpinv-admin-script', WPINV_PLUGIN_URL . 'assets/js/admin.js', array('jquery', 'jquery-blockui', 'jquery-ui-tooltip'), $version);
+        wp_enqueue_script('wpinv-admin-script');
         
         $localize                               = array();
-        $localize['ajax_url']                   = admin_url( 'admin-ajax.php' );
-        $localize['post_ID']                    = isset( $post->ID ) ? $post->ID : '';
-        $localize['wpinv_nonce']                = wp_create_nonce( 'wpinv-nonce' );
-        $localize['add_invoice_note_nonce']     = wp_create_nonce( 'add-invoice-note' );
-        $localize['delete_invoice_note_nonce']  = wp_create_nonce( 'delete-invoice-note' );
-        $localize['invoice_item_nonce']         = wp_create_nonce( 'invoice-item' );
-        $localize['billing_details_nonce']      = wp_create_nonce( 'get-billing-details' );
+        $localize['ajax_url']                   = admin_url('admin-ajax.php');
+        $localize['post_ID']                    = isset($post->ID) ? $post->ID : '';
+        $localize['wpinv_nonce']                = wp_create_nonce('wpinv-nonce');
+        $localize['add_invoice_note_nonce']     = wp_create_nonce('add-invoice-note');
+        $localize['delete_invoice_note_nonce']  = wp_create_nonce('delete-invoice-note');
+        $localize['invoice_item_nonce']         = wp_create_nonce('invoice-item');
+        $localize['billing_details_nonce']      = wp_create_nonce('get-billing-details');
         $localize['tax']                        = wpinv_tax_amount();
         $localize['discount']                   = wpinv_discount_amount();
         $localize['currency_symbol']            = wpinv_currency_symbol();
@@ -444,104 +444,104 @@ 
         $localize['thousand_sep']               = wpinv_thousands_separator();
         $localize['decimal_sep']                = wpinv_decimal_separator();
         $localize['decimals']                   = wpinv_decimals();
-        $localize['save_invoice']               = __( 'Save Invoice', 'invoicing' );
-        $localize['status_publish']             = wpinv_status_nicename( 'publish' );
-        $localize['status_pending']             = wpinv_status_nicename( 'wpi-pending' );
-        $localize['delete_tax_rate']            = __( 'Are you sure you wish to delete this tax rate?', 'invoicing' );
-        $localize['OneItemMin']                 = __( 'Invoice must contain at least one item', 'invoicing' );
-        $localize['DeleteInvoiceItem']          = __( 'Are you sure you wish to delete this item?', 'invoicing' );
-        $localize['FillBillingDetails']         = __( 'Fill the user\'s billing information? This will remove any currently entered billing information', 'invoicing' );
-        $localize['confirmCalcTotals']          = __( 'Recalculate totals? This will recalculate totals based on the user billing country. If no billing country is set it will use the base country.', 'invoicing' );
-        $localize['AreYouSure']                 = __( 'Are you sure?', 'invoicing' );
-        $localize['emptyInvoice']               = __( 'Add at least one item to save invoice!', 'invoicing' );
-        $localize['errDeleteItem']              = __( 'This item is in use! Before delete this item, you need to delete all the invoice(s) using this item.', 'invoicing' );
-        $localize['delete_subscription']        = __( 'Are you sure you want to delete this subscription?', 'invoicing' );
-        $localize['action_edit']                = __( 'Edit', 'invoicing' );
-        $localize['action_cancel']              = __( 'Cancel', 'invoicing' );
-        $localize['item_description']           = __( 'Item Description', 'invoicing' );
-        $localize['discount_description']       = __( 'Discount Description', 'invoicing' );
-        $localize['invoice_description']        = __( 'Invoice Description', 'invoicing' );
-        $localize['searching']                  = __( 'Searching', 'invoicing' );
-
-        $localize = apply_filters( 'wpinv_admin_js_localize', $localize );
-
-        wp_localize_script( 'wpinv-admin-script', 'WPInv_Admin', $localize );
+        $localize['save_invoice']               = __('Save Invoice', 'invoicing');
+        $localize['status_publish']             = wpinv_status_nicename('publish');
+        $localize['status_pending']             = wpinv_status_nicename('wpi-pending');
+        $localize['delete_tax_rate']            = __('Are you sure you wish to delete this tax rate?', 'invoicing');
+        $localize['OneItemMin']                 = __('Invoice must contain at least one item', 'invoicing');
+        $localize['DeleteInvoiceItem']          = __('Are you sure you wish to delete this item?', 'invoicing');
+        $localize['FillBillingDetails']         = __('Fill the user\'s billing information? This will remove any currently entered billing information', 'invoicing');
+        $localize['confirmCalcTotals']          = __('Recalculate totals? This will recalculate totals based on the user billing country. If no billing country is set it will use the base country.', 'invoicing');
+        $localize['AreYouSure']                 = __('Are you sure?', 'invoicing');
+        $localize['emptyInvoice']               = __('Add at least one item to save invoice!', 'invoicing');
+        $localize['errDeleteItem']              = __('This item is in use! Before delete this item, you need to delete all the invoice(s) using this item.', 'invoicing');
+        $localize['delete_subscription']        = __('Are you sure you want to delete this subscription?', 'invoicing');
+        $localize['action_edit']                = __('Edit', 'invoicing');
+        $localize['action_cancel']              = __('Cancel', 'invoicing');
+        $localize['item_description']           = __('Item Description', 'invoicing');
+        $localize['discount_description']       = __('Discount Description', 'invoicing');
+        $localize['invoice_description']        = __('Invoice Description', 'invoicing');
+        $localize['searching']                  = __('Searching', 'invoicing');
+
+        $localize = apply_filters('wpinv_admin_js_localize', $localize);
+
+        wp_localize_script('wpinv-admin-script', 'WPInv_Admin', $localize);
 
         // Load payment form scripts on our admin pages only.
-        if ( ( $hook == 'post-new.php' || $hook == 'post.php' ) && 'wpi_payment_form' === $post->post_type ) {
+        if (($hook == 'post-new.php' || $hook == 'post.php') && 'wpi_payment_form' === $post->post_type) {
 
-            wp_enqueue_script( 'vue', WPINV_PLUGIN_URL . 'assets/js/vue/vue.js', array(), WPINV_VERSION );
-            wp_enqueue_script( 'sortable', WPINV_PLUGIN_URL . 'assets/js/sortable.min.js', array(), WPINV_VERSION );
-            wp_enqueue_script( 'vue_draggable', WPINV_PLUGIN_URL . 'assets/js/vue/vuedraggable.min.js', array( 'sortable', 'vue' ), WPINV_VERSION );
+            wp_enqueue_script('vue', WPINV_PLUGIN_URL . 'assets/js/vue/vue.js', array(), WPINV_VERSION);
+            wp_enqueue_script('sortable', WPINV_PLUGIN_URL . 'assets/js/sortable.min.js', array(), WPINV_VERSION);
+            wp_enqueue_script('vue_draggable', WPINV_PLUGIN_URL . 'assets/js/vue/vuedraggable.min.js', array('sortable', 'vue'), WPINV_VERSION);
 
-            $version = filemtime( WPINV_PLUGIN_DIR . 'assets/js/admin-payment-forms.js' );
-            wp_register_script( 'wpinv-admin-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/admin-payment-forms.js', array( 'wpinv-admin-script', 'vue_draggable' ),  $version );
+            $version = filemtime(WPINV_PLUGIN_DIR . 'assets/js/admin-payment-forms.js');
+            wp_register_script('wpinv-admin-payment-form-script', WPINV_PLUGIN_URL . 'assets/js/admin-payment-forms.js', array('wpinv-admin-script', 'vue_draggable'), $version);
         
-            wp_localize_script( 'wpinv-admin-payment-form-script', 'wpinvPaymentFormAdmin', array(
+            wp_localize_script('wpinv-admin-payment-form-script', 'wpinvPaymentFormAdmin', array(
                 'elements'      => $this->form_elements->get_elements(),
-                'form_elements' => $this->form_elements->get_form_elements( $post->ID ),
+                'form_elements' => $this->form_elements->get_form_elements($post->ID),
                 'all_items'     => $this->form_elements->get_published_items(),
                 'currency'      => wpinv_currency_symbol(),
                 'position'      => wpinv_currency_position(),
                 'decimals'      => (int) wpinv_decimals(),
                 'thousands_sep' => wpinv_thousands_separator(),
                 'decimals_sep'  => wpinv_decimal_separator(),
-                'form_items'    => $this->form_elements->get_form_items( $post->ID ),
+                'form_items'    => $this->form_elements->get_form_items($post->ID),
                 'is_default'    => $post->ID == $this->default_payment_form,
-            ) );
+            ));
 
-            wp_enqueue_script( 'wpinv-admin-payment-form-script' );
+            wp_enqueue_script('wpinv-admin-payment-form-script');
         }
 
-        if ( $page == 'wpinv-subscriptions' ) {
-            wp_register_script( 'wpinv-sub-admin-script', WPINV_PLUGIN_URL . 'assets/js/subscriptions.js', array( 'wpinv-admin-script' ),  WPINV_VERSION );
-            wp_enqueue_script( 'wpinv-sub-admin-script' );
+        if ($page == 'wpinv-subscriptions') {
+            wp_register_script('wpinv-sub-admin-script', WPINV_PLUGIN_URL . 'assets/js/subscriptions.js', array('wpinv-admin-script'), WPINV_VERSION);
+            wp_enqueue_script('wpinv-sub-admin-script');
         }
 
-        if ( $page == 'wpinv-reports' ) {
-            wp_enqueue_script( 'jquery-flot', WPINV_PLUGIN_URL . 'assets/js/jquery.flot.min.js', array( 'jquery' ), '0.7' );
+        if ($page == 'wpinv-reports') {
+            wp_enqueue_script('jquery-flot', WPINV_PLUGIN_URL . 'assets/js/jquery.flot.min.js', array('jquery'), '0.7');
         }
 
     }
 
-    public function admin_body_class( $classes ) {
+    public function admin_body_class($classes) {
         global $pagenow, $post, $current_screen;
         
-        if ( !empty( $current_screen->post_type ) && ( $current_screen->post_type == 'wpi_invoice' || $current_screen->post_type == 'wpi_payment_form' || $current_screen->post_type == 'wpi_quote' ) ) {
+        if (!empty($current_screen->post_type) && ($current_screen->post_type == 'wpi_invoice' || $current_screen->post_type == 'wpi_payment_form' || $current_screen->post_type == 'wpi_quote')) {
             $classes .= ' wpinv-cpt';
         }
         
-        $page = isset( $_GET['page'] ) ? strtolower( $_GET['page'] ) : false;
+        $page = isset($_GET['page']) ? strtolower($_GET['page']) : false;
 
-        $add_class = $page && $pagenow == 'admin.php' && strpos( $page, 'wpinv-' ) === 0 ? true : false;
-        if ( $add_class ) {
-            $classes .= ' wpi-' . wpinv_sanitize_key( $page );
+        $add_class = $page && $pagenow == 'admin.php' && strpos($page, 'wpinv-') === 0 ? true : false;
+        if ($add_class) {
+            $classes .= ' wpi-' . wpinv_sanitize_key($page);
         }
         
         $settings_class = array();
-        if ( $page == 'wpinv-settings' ) {
-            if ( !empty( $_REQUEST['tab'] ) ) {
-                $settings_class[] = sanitize_text_field( $_REQUEST['tab'] );
+        if ($page == 'wpinv-settings') {
+            if (!empty($_REQUEST['tab'])) {
+                $settings_class[] = sanitize_text_field($_REQUEST['tab']);
             }
             
-            if ( !empty( $_REQUEST['section'] ) ) {
-                $settings_class[] = sanitize_text_field( $_REQUEST['section'] );
+            if (!empty($_REQUEST['section'])) {
+                $settings_class[] = sanitize_text_field($_REQUEST['section']);
             }
             
-            $settings_class[] = isset( $_REQUEST['wpi_sub'] ) && $_REQUEST['wpi_sub'] !== '' ? sanitize_text_field( $_REQUEST['wpi_sub'] ) : 'main';
+            $settings_class[] = isset($_REQUEST['wpi_sub']) && $_REQUEST['wpi_sub'] !== '' ? sanitize_text_field($_REQUEST['wpi_sub']) : 'main';
         }
         
-        if ( !empty( $settings_class ) ) {
-            $classes .= ' wpi-' . wpinv_sanitize_key( implode( $settings_class, '-' ) );
+        if (!empty($settings_class)) {
+            $classes .= ' wpi-' . wpinv_sanitize_key(implode($settings_class, '-'));
         }
         
         $post_type = wpinv_admin_post_type();
 
-        if ( $post_type == 'wpi_invoice' || $post_type == 'wpi_quote' || $add_class !== false ) {
+        if ($post_type == 'wpi_invoice' || $post_type == 'wpi_quote' || $add_class !== false) {
             return $classes .= ' wpinv';
         }
         
-        if ( $pagenow == 'post.php' && $post_type == 'wpi_item' && !empty( $post ) && !wpinv_item_is_editable( $post ) ) {
+        if ($pagenow == 'post.php' && $post_type == 'wpi_item' && !empty($post) && !wpinv_item_is_editable($post)) {
             $classes .= ' wpi-editable-n';
         }
 
@@ -553,21 +553,21 @@ 
     }
     
     public function wpinv_actions() {
-        if ( isset( $_REQUEST['wpi_action'] ) ) {
-            do_action( 'wpinv_' . wpinv_sanitize_key( $_REQUEST['wpi_action'] ), $_REQUEST );
+        if (isset($_REQUEST['wpi_action'])) {
+            do_action('wpinv_' . wpinv_sanitize_key($_REQUEST['wpi_action']), $_REQUEST);
         }
     }
     
-    public function pre_get_posts( $wp_query ) {
-        if ( !empty( $wp_query->query_vars['post_type'] ) && $wp_query->query_vars['post_type'] == 'wpi_invoice' && is_user_logged_in() && is_single() && $wp_query->is_main_query() ) {
-            $wp_query->query_vars['post_status'] = array_keys( wpinv_get_invoice_statuses() );
+    public function pre_get_posts($wp_query) {
+        if (!empty($wp_query->query_vars['post_type']) && $wp_query->query_vars['post_type'] == 'wpi_invoice' && is_user_logged_in() && is_single() && $wp_query->is_main_query()) {
+            $wp_query->query_vars['post_status'] = array_keys(wpinv_get_invoice_statuses());
         }
         
         return $wp_query;
     }
     
     public function bp_invoicing_init() {
-        require_once( WPINV_PLUGIN_DIR . 'includes/class-wpinv-bp-core.php' );
+        require_once(WPINV_PLUGIN_DIR . 'includes/class-wpinv-bp-core.php');
     }
 
 	/**
@@ -575,13 +575,13 @@ 
 	 *
 	 */
 	public function register_widgets() {
-		register_widget( "WPInv_Checkout_Widget" );
-		register_widget( "WPInv_History_Widget" );
-		register_widget( "WPInv_Receipt_Widget" );
-		register_widget( "WPInv_Subscriptions_Widget" );
-		register_widget( "WPInv_Buy_Item_Widget" );
-        register_widget( "WPInv_Messages_Widget" );
-        register_widget( 'WPInv_GetPaid_Widget' );
+		register_widget("WPInv_Checkout_Widget");
+		register_widget("WPInv_History_Widget");
+		register_widget("WPInv_Receipt_Widget");
+		register_widget("WPInv_Subscriptions_Widget");
+		register_widget("WPInv_Buy_Item_Widget");
+        register_widget("WPInv_Messages_Widget");
+        register_widget('WPInv_GetPaid_Widget');
 	}
     
     /**
@@ -590,10 +590,10 @@ 
      * @since 1.0.19
      * @param int[] $excluded_posts_ids
      */
-    public function wpseo_exclude_from_sitemap_by_post_ids( $excluded_posts_ids ){
+    public function wpseo_exclude_from_sitemap_by_post_ids($excluded_posts_ids) {
 
         // Ensure that we have an array.
-        if ( ! is_array( $excluded_posts_ids ) ) {
+        if (!is_array($excluded_posts_ids)) {
             $excluded_posts_ids = array();
         }
 
@@ -601,24 +601,24 @@ 
         $our_pages = array();
     
         // Checkout page.
-        $our_pages[] = wpinv_get_option( 'checkout_page', false );
+        $our_pages[] = wpinv_get_option('checkout_page', false);
 
         // Success page.
-        $our_pages[] = wpinv_get_option( 'success_page', false );
+        $our_pages[] = wpinv_get_option('success_page', false);
 
         // Failure page.
-        $our_pages[] = wpinv_get_option( 'failure_page', false );
+        $our_pages[] = wpinv_get_option('failure_page', false);
 
         // History page.
-        $our_pages[] = wpinv_get_option( 'invoice_history_page', false );
+        $our_pages[] = wpinv_get_option('invoice_history_page', false);
 
         // Subscriptions page.
-        $our_pages[] = wpinv_get_option( 'invoice_subscription_page', false );
+        $our_pages[] = wpinv_get_option('invoice_subscription_page', false);
 
-        $our_pages   = array_map( 'intval', array_filter( $our_pages ) );
+        $our_pages   = array_map('intval', array_filter($our_pages));
 
         $excluded_posts_ids = $excluded_posts_ids + $our_pages;
-        return array_unique( $excluded_posts_ids );
+        return array_unique($excluded_posts_ids);
 
     }
 

includes/invoice-functions.php

Indentation +1 added lines, -1 removed lines

@@ -67,7 +67,7 @@
  * Checks if the current user cna view an invoice receipt.
  */
 function wpinv_can_view_receipt( $invoice ) {
-	return (bool) apply_filters( 'wpinv_can_view_receipt', wpinv_user_can_view_invoice( $invoice ), $invoice );
+    return (bool) apply_filters( 'wpinv_can_view_receipt', wpinv_user_can_view_invoice( $invoice ), $invoice );
 }
 
 /**

Spacing +353 added lines, -353 removed lines

@@ -6,7 +6,7 @@ 
  * @package Invoicing
  */
  
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Retrieves the current invoice.
@@ -14,15 +14,15 @@ 
 function getpaid_get_current_invoice_id() {
 
     // Ensure that we have an invoice key.
-    if ( empty( $_GET['invoice_key'] ) ) {
+    if (empty($_GET['invoice_key'])) {
         return 0;
     }
 
     // Retrieve an invoice using the key.
-    $invoice = new WPInv_Invoice( $_GET['invoice_key'] );
+    $invoice = new WPInv_Invoice($_GET['invoice_key']);
 
     // Compare the invoice key and the parsed key.
-    if ( $invoice->get_id() != 0 && $invoice->get_key() == $_GET['invoice_key'] ) {
+    if ($invoice->get_id() != 0 && $invoice->get_key() == $_GET['invoice_key']) {
         return $invoice->get_id();
     }
 
@@ -32,42 +32,42 @@ 
 /**
  * Checks if the current user cna view an invoice.
  */
-function wpinv_user_can_view_invoice( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_user_can_view_invoice($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
 
     // Abort if the invoice does not exist.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return false;
     }
 
     // Don't allow trash, draft status
-    if ( $invoice->is_draft() ) {
+    if ($invoice->is_draft()) {
         return false;
     }
 
     // If users are not required to login to check out, compare the invoice keys.
-    if ( ! wpinv_require_login_to_checkout() && isset( $_GET['invoice_key'] ) && trim( $_GET['invoice_key'] ) == $invoice->get_key() ) {
+    if (!wpinv_require_login_to_checkout() && isset($_GET['invoice_key']) && trim($_GET['invoice_key']) == $invoice->get_key()) {
         return true;
     }
 
     // Always enable for admins..
-    if ( wpinv_current_user_can_manage_invoicing() || current_user_can( 'view_invoices', $invoice->get_id() ) ) { // Admin user
+    if (wpinv_current_user_can_manage_invoicing() || current_user_can('view_invoices', $invoice->get_id())) { // Admin user
         return true;
     }
 
     // Else, ensure that this is their invoice.
-    if ( is_user_logged_in() && $invoice->get_user_id() == get_current_user_id() ) {
+    if (is_user_logged_in() && $invoice->get_user_id() == get_current_user_id()) {
         return true;
     }
 
-    return apply_filters( 'wpinv_current_user_can_view_invoice', false, $invoice );
+    return apply_filters('wpinv_current_user_can_view_invoice', false, $invoice);
 }
 
 /**
  * Checks if the current user cna view an invoice receipt.
  */
-function wpinv_can_view_receipt( $invoice ) {
-	return (bool) apply_filters( 'wpinv_can_view_receipt', wpinv_user_can_view_invoice( $invoice ), $invoice );
+function wpinv_can_view_receipt($invoice) {
+	return (bool) apply_filters('wpinv_can_view_receipt', wpinv_user_can_view_invoice($invoice), $invoice);
 }
 
 /**
@@ -77,11 +77,11 @@ 
  */
 function getpaid_get_invoice_post_types() {
     $post_types = array(
-        'wpi_quote'   => __( 'Quote', 'invoicing' ),
-        'wpi_invoice' => __( 'Invoice', 'invoicing' ),
+        'wpi_quote'   => __('Quote', 'invoicing'),
+        'wpi_invoice' => __('Invoice', 'invoicing'),
     );
 
-    return apply_filters( 'getpaid_invoice_post_types', $post_types );
+    return apply_filters('getpaid_invoice_post_types', $post_types);
 }
 
 /**
@@ -90,8 +90,8 @@ 
  * 
  * @param string $post_type The post type to check for.
  */
-function getpaid_is_invoice_post_type( $post_type ) {
-    return ! empty( $post_type ) && array_key_exists( $post_type, getpaid_get_invoice_post_types() );
+function getpaid_is_invoice_post_type($post_type) {
+    return !empty($post_type) && array_key_exists($post_type, getpaid_get_invoice_post_types());
 }
 
 /**
@@ -101,9 +101,9 @@ 
  * @param  bool  $wp_error       Whether to return false or WP_Error on failure.
  * @return int|WP_Error|WPInv_Invoice The value 0 or WP_Error on failure. The WPInv_Invoice object on success.
  */
-function wpinv_create_invoice( $data = array(), $deprecated = null, $wp_error = false ) {
-    $data[ 'invoice_id' ] = 0;
-    return wpinv_insert_invoice( $data, $wp_error );
+function wpinv_create_invoice($data = array(), $deprecated = null, $wp_error = false) {
+    $data['invoice_id'] = 0;
+    return wpinv_insert_invoice($data, $wp_error);
 }
 
 /**
@@ -113,36 +113,36 @@ 
  * @param  bool  $wp_error       Whether to return false or WP_Error on failure.
  * @return int|WP_Error|WPInv_Invoice The value 0 or WP_Error on failure. The WPInv_Invoice object on success.
  */
-function wpinv_update_invoice( $data = array(), $wp_error = false ) {
+function wpinv_update_invoice($data = array(), $wp_error = false) {
 
     // Backwards compatibility.
-    if ( ! empty( $data['ID'] ) ) {
+    if (!empty($data['ID'])) {
         $data['invoice_id'] = $data['ID'];
     }
 
     // Do we have an invoice id?
-    if ( empty( $data['invoice_id'] ) ) {
-        return $wp_error ? new WP_Error( 'invalid_invoice_id', __( 'Invalid invoice ID.', 'invoicing' ) ) : 0;
+    if (empty($data['invoice_id'])) {
+        return $wp_error ? new WP_Error('invalid_invoice_id', __('Invalid invoice ID.', 'invoicing')) : 0;
     }
 
     // Retrieve the invoice.
-    $invoice = wpinv_get_invoice( $data['invoice_id'] );
+    $invoice = wpinv_get_invoice($data['invoice_id']);
 
     // And abort if it does not exist.
-    if ( empty( $invoice ) ) {
-        return $wp_error ? new WP_Error( 'missing_invoice', __( 'Invoice not found.', 'invoicing' ) ) : 0;
+    if (empty($invoice)) {
+        return $wp_error ? new WP_Error('missing_invoice', __('Invoice not found.', 'invoicing')) : 0;
     }
 
     // Do not update totals for paid / refunded invoices.
-    if ( $invoice->is_paid() || $invoice->is_refunded() ) {
+    if ($invoice->is_paid() || $invoice->is_refunded()) {
 
-        if ( ! empty( $data['items'] ) || ! empty( $data['cart_details'] ) ) {
-            return $wp_error ? new WP_Error( 'paid_invoice', __( 'You can not update cart items for invoices that have already been paid for.', 'invoicing' ) ) : 0;
+        if (!empty($data['items']) || !empty($data['cart_details'])) {
+            return $wp_error ? new WP_Error('paid_invoice', __('You can not update cart items for invoices that have already been paid for.', 'invoicing')) : 0;
         }
 
     }
 
-    return wpinv_insert_invoice( $data, $wp_error );
+    return wpinv_insert_invoice($data, $wp_error);
 
 }
 
@@ -153,34 +153,34 @@ 
  * @param  bool  $wp_error       Whether to return false or WP_Error on failure.
  * @return int|WP_Error|WPInv_Invoice The value 0 or WP_Error on failure. The WPInv_Invoice object on success.
  */
-function wpinv_insert_invoice( $data = array(), $wp_error = false ) {
+function wpinv_insert_invoice($data = array(), $wp_error = false) {
 
     // Ensure that we have invoice data.
-    if ( empty( $data ) ) {
+    if (empty($data)) {
         return false;
     }
 
     // The invoice id will be provided when updating an invoice.
-    $data['invoice_id'] = ! empty( $data['invoice_id'] ) ? (int) $data['invoice_id'] : false;
+    $data['invoice_id'] = !empty($data['invoice_id']) ? (int) $data['invoice_id'] : false;
 
     // Retrieve the invoice.
-    $invoice = new WPInv_Invoice( $data['invoice_id'] );
+    $invoice = new WPInv_Invoice($data['invoice_id']);
 
     // Do we have an error?
-    if ( ! empty( $invoice->last_error ) ) {
-        return $wp_error ? new WP_Error( 'invalid_invoice_id', $invoice->last_error ) : 0;
+    if (!empty($invoice->last_error)) {
+        return $wp_error ? new WP_Error('invalid_invoice_id', $invoice->last_error) : 0;
     }
 
     // Backwards compatibility (billing address).
-    if ( ! empty( $data['user_info'] ) ) {
+    if (!empty($data['user_info'])) {
 
-        foreach ( $data['user_info'] as $key => $value ) {
+        foreach ($data['user_info'] as $key => $value) {
 
-            if ( $key == 'discounts' ) {
+            if ($key == 'discounts') {
                 $value = (array) $value;
-                $data[ 'discount_code' ] = empty( $value ) ? null : $value[0];
+                $data['discount_code'] = empty($value) ? null : $value[0];
             } else {
-                $data[ $key ] = $value;
+                $data[$key] = $value;
             }
 
         }
@@ -188,30 +188,30 @@ 
     }
 
     // Backwards compatibility.
-    if ( ! empty( $data['payment_details'] ) ) {
+    if (!empty($data['payment_details'])) {
 
-        foreach ( $data['payment_details'] as $key => $value ) {
-            $data[ $key ] = $value;
+        foreach ($data['payment_details'] as $key => $value) {
+            $data[$key] = $value;
         }
 
     }
 
     // Set up the owner of the invoice.
-    $user_id = ! empty( $data['user_id'] ) ? wpinv_clean( $data['user_id'] ) : get_current_user_id();
+    $user_id = !empty($data['user_id']) ? wpinv_clean($data['user_id']) : get_current_user_id();
 
     // Make sure the user exists.
-    if ( ! get_userdata( $user_id ) ) {
-        return $wp_error ? new WP_Error( 'wpinv_invalid_user', __( 'There is no user with that ID.', 'invoicing' ) ) : 0;
+    if (!get_userdata($user_id)) {
+        return $wp_error ? new WP_Error('wpinv_invalid_user', __('There is no user with that ID.', 'invoicing')) : 0;
     }
 
-    $address = wpinv_get_user_address( $user_id );
+    $address = wpinv_get_user_address($user_id);
 
-    foreach ( $address as $key => $value ) {
+    foreach ($address as $key => $value) {
 
-        if ( $value == '' ) {
-            $address[ $key ] = null;
+        if ($value == '') {
+            $address[$key] = null;
         } else {
-            $address[ $key ] = wpinv_clean( $value );
+            $address[$key] = wpinv_clean($value);
         }
 
     }
@@ -222,103 +222,103 @@ 
         array(
 
             // Basic info.
-            'template'             => isset( $data['template'] ) ? wpinv_clean( $data['template'] ) : null,
-            'email_cc'             => isset( $data['email_cc'] ) ? wpinv_clean( $data['email_cc'] ) : null,
-            'date_created'         => isset( $data['created_date'] ) ? wpinv_clean( $data['created_date'] ) : null,
-            'due_date'             => isset( $data['due_date'] ) ? wpinv_clean( $data['due_date'] ) : null,
-            'date_completed'       => isset( $data['date_completed'] ) ? wpinv_clean( $data['date_completed'] ) : null,
-            'number'               => isset( $data['number'] ) ? wpinv_clean( $data['number'] ) : null,
-            'key'                  => isset( $data['key'] ) ? wpinv_clean( $data['key'] ) : null,
-            'status'               => isset( $data['status'] ) ? wpinv_clean( $data['status'] ) : null,
-            'post_type'            => isset( $data['post_type'] ) ? wpinv_clean( $data['post_type'] ) : null,
-            'user_ip'              => isset( $data['ip'] ) ? wpinv_clean( $data['ip'] ) : wpinv_get_ip(),
-            'parent_id'            => isset( $data['parent'] ) ? intval( $data['parent'] ) : null,
-            'mode'                 => isset( $data['mode'] ) ? wpinv_clean( $data['mode'] ) : null,
-            'description'          => isset( $data['description'] ) ? wp_kses_post( $data['description'] ) : null,
+            'template'             => isset($data['template']) ? wpinv_clean($data['template']) : null,
+            'email_cc'             => isset($data['email_cc']) ? wpinv_clean($data['email_cc']) : null,
+            'date_created'         => isset($data['created_date']) ? wpinv_clean($data['created_date']) : null,
+            'due_date'             => isset($data['due_date']) ? wpinv_clean($data['due_date']) : null,
+            'date_completed'       => isset($data['date_completed']) ? wpinv_clean($data['date_completed']) : null,
+            'number'               => isset($data['number']) ? wpinv_clean($data['number']) : null,
+            'key'                  => isset($data['key']) ? wpinv_clean($data['key']) : null,
+            'status'               => isset($data['status']) ? wpinv_clean($data['status']) : null,
+            'post_type'            => isset($data['post_type']) ? wpinv_clean($data['post_type']) : null,
+            'user_ip'              => isset($data['ip']) ? wpinv_clean($data['ip']) : wpinv_get_ip(),
+            'parent_id'            => isset($data['parent']) ? intval($data['parent']) : null,
+            'mode'                 => isset($data['mode']) ? wpinv_clean($data['mode']) : null,
+            'description'          => isset($data['description']) ? wp_kses_post($data['description']) : null,
 
             // Payment info.
-            'disable_taxes'        => ! empty( $data['disable_taxes'] ),
-            'currency'             => isset( $data['currency'] ) ? wpinv_clean( $data['currency'] ) : wpinv_get_currency(),
-            'gateway'              => isset( $data['gateway'] ) ? wpinv_clean( $data['gateway'] ) : null,
-            'transaction_id'       => isset( $data['transaction_id'] ) ? wpinv_clean( $data['transaction_id'] ) : null,
-            'discount_code'        => isset( $data['discount_code'] ) ? wpinv_clean( $data['discount_code'] ) : null,
-            'payment_form'         => isset( $data['payment_form'] ) ? intval( $data['payment_form'] ) : null,
-            'submission_id'        => isset( $data['submission_id'] ) ? wpinv_clean( $data['submission_id'] ) : null,
-            'subscription_id'      => isset( $data['subscription_id'] ) ? wpinv_clean( $data['subscription_id'] ) : null,
-            'is_viewed'            => isset( $data['is_viewed'] ) ? wpinv_clean( $data['is_viewed'] ) : null,
-            'fees'                 => isset( $data['fees'] ) ? wpinv_clean( $data['fees'] ) : null,
-            'discounts'            => isset( $data['discounts'] ) ? wpinv_clean( $data['discounts'] ) : null,
-            'taxes'                => isset( $data['taxes'] ) ? wpinv_clean( $data['taxes'] ) : null,
+            'disable_taxes'        => !empty($data['disable_taxes']),
+            'currency'             => isset($data['currency']) ? wpinv_clean($data['currency']) : wpinv_get_currency(),
+            'gateway'              => isset($data['gateway']) ? wpinv_clean($data['gateway']) : null,
+            'transaction_id'       => isset($data['transaction_id']) ? wpinv_clean($data['transaction_id']) : null,
+            'discount_code'        => isset($data['discount_code']) ? wpinv_clean($data['discount_code']) : null,
+            'payment_form'         => isset($data['payment_form']) ? intval($data['payment_form']) : null,
+            'submission_id'        => isset($data['submission_id']) ? wpinv_clean($data['submission_id']) : null,
+            'subscription_id'      => isset($data['subscription_id']) ? wpinv_clean($data['subscription_id']) : null,
+            'is_viewed'            => isset($data['is_viewed']) ? wpinv_clean($data['is_viewed']) : null,
+            'fees'                 => isset($data['fees']) ? wpinv_clean($data['fees']) : null,
+            'discounts'            => isset($data['discounts']) ? wpinv_clean($data['discounts']) : null,
+            'taxes'                => isset($data['taxes']) ? wpinv_clean($data['taxes']) : null,
             
 
             // Billing details.
             'user_id'              => $data['user_id'],
-            'first_name'           => isset( $data['first_name'] ) ? wpinv_clean( $data['first_name'] ) : $address['first_name'],
-            'last_name'            => isset( $data['last_name'] ) ? wpinv_clean( $data['last_name'] ) : $address['last_name'],
-            'address'              => isset( $data['address'] ) ? wpinv_clean( $data['address'] ) : $address['address'] ,
-            'vat_number'           => isset( $data['vat_number'] ) ? wpinv_clean( $data['vat_number'] ) : $address['vat_number'],
-            'company'              => isset( $data['company'] ) ? wpinv_clean( $data['company'] ) : $address['company'],
-            'zip'                  => isset( $data['zip'] ) ? wpinv_clean( $data['zip'] ) : $address['zip'],
-            'state'                => isset( $data['state'] ) ? wpinv_clean( $data['state'] ) : $address['state'],
-            'city'                 => isset( $data['city'] ) ? wpinv_clean( $data['city'] ) : $address['city'],
-            'country'              => isset( $data['country'] ) ? wpinv_clean( $data['country'] ) : $address['country'],
-            'phone'                => isset( $data['phone'] ) ? wpinv_clean( $data['phone'] ) : $address['phone'],
-            'address_confirmed'    => ! empty( $data['address_confirmed'] ),
+            'first_name'           => isset($data['first_name']) ? wpinv_clean($data['first_name']) : $address['first_name'],
+            'last_name'            => isset($data['last_name']) ? wpinv_clean($data['last_name']) : $address['last_name'],
+            'address'              => isset($data['address']) ? wpinv_clean($data['address']) : $address['address'],
+            'vat_number'           => isset($data['vat_number']) ? wpinv_clean($data['vat_number']) : $address['vat_number'],
+            'company'              => isset($data['company']) ? wpinv_clean($data['company']) : $address['company'],
+            'zip'                  => isset($data['zip']) ? wpinv_clean($data['zip']) : $address['zip'],
+            'state'                => isset($data['state']) ? wpinv_clean($data['state']) : $address['state'],
+            'city'                 => isset($data['city']) ? wpinv_clean($data['city']) : $address['city'],
+            'country'              => isset($data['country']) ? wpinv_clean($data['country']) : $address['country'],
+            'phone'                => isset($data['phone']) ? wpinv_clean($data['phone']) : $address['phone'],
+            'address_confirmed'    => !empty($data['address_confirmed']),
 
         )
 
     );
 
     // Backwards compatibililty.
-    if ( ! empty( $data['cart_details'] ) && is_array( $data['cart_details'] ) ) {
+    if (!empty($data['cart_details']) && is_array($data['cart_details'])) {
         $data['items'] = array();
 
-        foreach( $data['cart_details'] as $_item ) {
+        foreach ($data['cart_details'] as $_item) {
 
             // Ensure that we have an item id.
-            if ( empty(  $_item['id']  ) ) {
+            if (empty($_item['id'])) {
                 continue;
             }
 
             // Retrieve the item.
-            $item = new GetPaid_Form_Item(  $_item['id']  );
+            $item = new GetPaid_Form_Item($_item['id']);
 
             // Ensure that it is purchasable.
-            if ( ! $item->can_purchase() ) {
+            if (!$item->can_purchase()) {
                 continue;
             }
 
             // Set quantity.
-            if ( ! empty( $_item['quantity'] ) && is_numeric( $_item['quantity'] ) ) {
-                $item->set_quantity( $_item['quantity'] );
+            if (!empty($_item['quantity']) && is_numeric($_item['quantity'])) {
+                $item->set_quantity($_item['quantity']);
             }
 
             // Set price.
-            if ( isset( $_item['item_price'] ) ) {
-                $item->set_price( $_item['item_price'] );
+            if (isset($_item['item_price'])) {
+                $item->set_price($_item['item_price']);
             }
 
-            if ( isset( $_item['custom_price'] ) ) {
-                $item->set_price( $_item['custom_price'] );
+            if (isset($_item['custom_price'])) {
+                $item->set_price($_item['custom_price']);
             }
 
             // Set name.
-            if ( ! empty( $_item['name'] ) ) {
-                $item->set_name( $_item['name'] );
+            if (!empty($_item['name'])) {
+                $item->set_name($_item['name']);
             }
 
             // Set description.
-            if ( isset( $_item['description'] ) ) {
-                $item->set_custom_description( $_item['description'] );
+            if (isset($_item['description'])) {
+                $item->set_custom_description($_item['description']);
             }
 
             // Set meta.
-            if ( isset( $_item['meta'] ) && is_array( $_item['meta'] ) ) {
+            if (isset($_item['meta']) && is_array($_item['meta'])) {
 
-                $item->set_item_meta( $_item['meta'] );
+                $item->set_item_meta($_item['meta']);
 
-                if ( isset( $_item['meta']['description'] ) ) {
-                    $item->set_custom_description( $_item['meta']['description'] );
+                if (isset($_item['meta']['description'])) {
+                    $item->set_custom_description($_item['meta']['description']);
                 }
 
             }
@@ -329,14 +329,14 @@ 
     }
 
     // Add invoice items.
-    if ( ! empty( $data['items'] ) && is_array( $data['items'] ) ) {
+    if (!empty($data['items']) && is_array($data['items'])) {
 
-        $invoice->set_items( array() );
+        $invoice->set_items(array());
 
-        foreach ( $data['items'] as $item ) {
+        foreach ($data['items'] as $item) {
 
-            if ( is_object( $item ) && is_a( $item, 'GetPaid_Form_Item' ) && $item->can_purchase() ) {
-                $invoice->add_item( $item );
+            if (is_object($item) && is_a($item, 'GetPaid_Form_Item') && $item->can_purchase()) {
+                $invoice->add_item($item);
             }
 
         }
@@ -346,30 +346,30 @@ 
     // Save the invoice.
     $invoice->save();
 
-    if ( ! $invoice->get_id() ) {
-        return $wp_error ? new WP_Error( 'wpinv_insert_invoice_error', __( 'An error occured when saving your invoice.', 'invoicing' ) ) : 0;
+    if (!$invoice->get_id()) {
+        return $wp_error ? new WP_Error('wpinv_insert_invoice_error', __('An error occured when saving your invoice.', 'invoicing')) : 0;
     }
 
     // Add private note.
-    if ( ! empty( $data['private_note'] ) ) {
-        $invoice->add_note( $data['private_note'] );
+    if (!empty($data['private_note'])) {
+        $invoice->add_note($data['private_note']);
     }
 
     // User notes.
-    if ( !empty( $data['user_note'] ) ) {
-        $invoice->add_note( $data['user_note'], true );
+    if (!empty($data['user_note'])) {
+        $invoice->add_note($data['user_note'], true);
     }
 
     // Created via.
-    if ( isset( $data['created_via'] ) ) {
-        update_post_meta( $invoice->get_id(), 'wpinv_created_via', $data['created_via'] );
+    if (isset($data['created_via'])) {
+        update_post_meta($invoice->get_id(), 'wpinv_created_via', $data['created_via']);
     }
 
     // Backwards compatiblity.
-    if ( $invoice->is_quote() ) {
+    if ($invoice->is_quote()) {
 
-        if ( isset( $data['valid_until'] ) ) {
-            update_post_meta( $invoice->get_id(), 'wpinv_quote_valid_until', $data['valid_until'] );
+        if (isset($data['valid_until'])) {
+            update_post_meta($invoice->get_id(), 'wpinv_quote_valid_until', $data['valid_until']);
         }
         return $invoice;
 
@@ -384,18 +384,18 @@ 
  * @param $bool $deprecated
  * @return WPInv_Invoice|null
  */
-function wpinv_get_invoice( $invoice = 0, $deprecated = false ) {
+function wpinv_get_invoice($invoice = 0, $deprecated = false) {
 
     // If we are retrieving the invoice from the cart...
-    if ( $deprecated && empty( $invoice ) ) {
+    if ($deprecated && empty($invoice)) {
         $invoice = (int) getpaid_get_current_invoice_id();
     }
 
     // Retrieve the invoice.
-    $invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice($invoice);
 
     // Check if it exists.
-    if ( $invoice->get_id() != 0 ) {
+    if ($invoice->get_id() != 0) {
         return $invoice;
     }
 
@@ -408,15 +408,15 @@ 
  * @param array $args Args to search for.
  * @return WPInv_Invoice[]|int[]|object
  */
-function wpinv_get_invoices( $args ) {
+function wpinv_get_invoices($args) {
 
     // Prepare args.
     $args = wp_parse_args(
         $args,
         array(
-            'status'   => array_keys( wpinv_get_invoice_statuses() ),
+            'status'   => array_keys(wpinv_get_invoice_statuses()),
             'type'     => 'wpi_invoice',
-            'limit'    => get_option( 'posts_per_page' ),
+            'limit'    => get_option('posts_per_page'),
             'return'   => 'objects',
         )
     );
@@ -434,24 +434,24 @@ 
         'post__in'       => 'include',
     );
 
-    foreach ( $map_legacy as $to => $from ) {
-        if ( isset( $args[ $from ] ) ) {
-            $args[ $to ] = $args[ $from ];
-            unset( $args[ $from ] );
+    foreach ($map_legacy as $to => $from) {
+        if (isset($args[$from])) {
+            $args[$to] = $args[$from];
+            unset($args[$from]);
         }
     }
 
     // Backwards compatibility.
-    if ( ! empty( $args['email'] ) && empty( $args['user'] ) ) {
+    if (!empty($args['email']) && empty($args['user'])) {
         $args['user'] = $args['email'];
-        unset( $args['email'] );
+        unset($args['email']);
     }
 
     // Handle cases where the user is set as an email.
-    if ( ! empty( $args['author'] ) && is_email( $args['author'] ) ) {
-        $user = get_user_by( 'email', $args['user'] );
+    if (!empty($args['author']) && is_email($args['author'])) {
+        $user = get_user_by('email', $args['user']);
 
-        if ( $user ) {
+        if ($user) {
             $args['author'] = $user->user_email;
         }
 
@@ -462,31 +462,31 @@ 
 
     // Show all posts.
     $paginate = true;
-    if ( isset( $args['paginate'] ) ) {
+    if (isset($args['paginate'])) {
         
         $paginate = $args['paginate'];
-        $args['no_found_rows'] = empty( $args['paginate'] );
-        unset( $args['paginate'] );
+        $args['no_found_rows'] = empty($args['paginate']);
+        unset($args['paginate']);
 
     }
 
     // Whether to return objects or fields.
     $return = $args['return'];
-    unset( $args['return'] );
+    unset($args['return']);
 
     // Get invoices.
-    $invoices = new WP_Query( apply_filters( 'wpinv_get_invoices_args', $args ) );
+    $invoices = new WP_Query(apply_filters('wpinv_get_invoices_args', $args));
 
     // Prepare the results.
-    if ( 'objects' === $return ) {
-        $results = array_map( 'wpinv_get_invoice', $invoices->posts );
-    } elseif ( 'self' === $return ) {
+    if ('objects' === $return) {
+        $results = array_map('wpinv_get_invoice', $invoices->posts);
+    } elseif ('self' === $return) {
         return $invoices;
     } else {
         $results = $invoices->posts;
     }
 
-    if ( $paginate ) {
+    if ($paginate) {
         return (object) array(
             'invoices'      => $results,
             'total'         => $invoices->found_posts,
@@ -504,8 +504,8 @@ 
  * @param string $transaction_id The transaction id to check.
  * @return int Invoice id on success or 0 on failure
  */
-function wpinv_get_id_by_transaction_id( $transaction_id ) {
-    return WPInv_Invoice::get_invoice_id_by_field( $transaction_id, 'transaction_id' );
+function wpinv_get_id_by_transaction_id($transaction_id) {
+    return WPInv_Invoice::get_invoice_id_by_field($transaction_id, 'transaction_id');
 }
 
 /**
@@ -514,8 +514,8 @@ 
  * @param string $invoice_number The invoice number to check.
  * @return int Invoice id on success or 0 on failure
  */
-function wpinv_get_id_by_invoice_number( $invoice_number ) {
-    return WPInv_Invoice::get_invoice_id_by_field( $invoice_number, 'number' );
+function wpinv_get_id_by_invoice_number($invoice_number) {
+    return WPInv_Invoice::get_invoice_id_by_field($invoice_number, 'number');
 }
 
 /**
@@ -524,8 +524,8 @@ 
  * @param string $invoice_key The invoice key to check.
  * @return int Invoice id on success or 0 on failure
  */
-function wpinv_get_invoice_id_by_key( $invoice_key ) {
-    return WPInv_Invoice::get_invoice_id_by_field( $invoice_key, 'key' );
+function wpinv_get_invoice_id_by_key($invoice_key) {
+    return WPInv_Invoice::get_invoice_id_by_field($invoice_key, 'key');
 }
 
 /**
@@ -535,20 +535,20 @@ 
  * @param string $type Optionally filter by type i.e customer|system
  * @return WPInv_Invoice|null
  */
-function wpinv_get_invoice_notes( $invoice = 0, $type = '' ) {
+function wpinv_get_invoice_notes($invoice = 0, $type = '') {
     global $invoicing;
 
     // Prepare the invoice.
-    $invoice = new WPInv_Invoice( $invoice );
-    if ( ! $invoice->exists() ) {
+    $invoice = new WPInv_Invoice($invoice);
+    if (!$invoice->exists()) {
         return NULL;
     }
 
     // Fetch notes.
-    $notes = $invoicing->notes->get_invoice_notes( $invoice->get_id(), $type );
+    $notes = $invoicing->notes->get_invoice_notes($invoice->get_id(), $type);
 
     // Filter the notes.
-    return apply_filters( 'wpinv_invoice_notes', $notes, $invoice->get_id(), $type );
+    return apply_filters('wpinv_invoice_notes', $notes, $invoice->get_id(), $type);
 }
 
 /**
@@ -558,27 +558,27 @@ 
     $columns = array(
 
             'invoice-number'  => array(
-                'title' => __( 'Invoice', 'invoicing' ),
+                'title' => __('Invoice', 'invoicing'),
                 'class' => 'text-left'
             ),
 
             'created-date'    => array(
-                'title' => __( 'Created Date', 'invoicing' ),
+                'title' => __('Created Date', 'invoicing'),
                 'class' => 'text-left'
             ),
 
             'payment-date'    => array(
-                'title' => __( 'Payment Date', 'invoicing' ),
+                'title' => __('Payment Date', 'invoicing'),
                 'class' => 'text-left'
             ),
 
             'invoice-status'  => array(
-                'title' => __( 'Status', 'invoicing' ),
+                'title' => __('Status', 'invoicing'),
                 'class' => 'text-center'
             ),
 
             'invoice-total'   => array(
-                'title' => __( 'Total', 'invoicing' ),
+                'title' => __('Total', 'invoicing'),
                 'class' => 'text-right'
             ),
 
@@ -589,7 +589,7 @@ 
 
         );
 
-    return apply_filters( 'wpinv_user_invoices_columns', $columns );
+    return apply_filters('wpinv_user_invoices_columns', $columns);
 }
 
 /**
@@ -599,54 +599,54 @@ 
 
     // Find the invoice.
     $invoice_id = getpaid_get_current_invoice_id();
-    $invoice = new WPInv_Invoice( $invoice_id );
+    $invoice = new WPInv_Invoice($invoice_id);
 
     // Abort if non was found.
-    if ( empty( $invoice_id ) || $invoice->is_draft() ) {
+    if (empty($invoice_id) || $invoice->is_draft()) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'We could not find your invoice', 'invoicing' ),
+                'content' => __('We could not find your invoice', 'invoicing'),
             )
         );
 
     }
 
     // Can the user view this invoice?
-    if ( ! wpinv_can_view_receipt( $invoice_id ) ) {
+    if (!wpinv_can_view_receipt($invoice_id)) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'You are not allowed to view this receipt', 'invoicing' ),
+                'content' => __('You are not allowed to view this receipt', 'invoicing'),
             )
         );
 
     }
 
     // Load the template.
-    return wpinv_get_template_html( 'invoice-receipt.php', compact( 'invoice' ) );
+    return wpinv_get_template_html('invoice-receipt.php', compact('invoice'));
 
 }
 
 /**
  * Displays the invoice history.
  */
-function getpaid_invoice_history( $user_id = 0 ) {
+function getpaid_invoice_history($user_id = 0) {
 
     // Ensure that we have a user id.
-    if ( empty( $user_id ) || ! is_numeric( $user_id ) ) {
+    if (empty($user_id) || !is_numeric($user_id)) {
         $user_id = get_current_user_id();
     }
 
     // View user id.
-    if ( empty( $user_id ) ) {
+    if (empty($user_id)) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'You must be logged in to view your invoice history.', 'invoicing' ),
+                'content' => __('You must be logged in to view your invoice history.', 'invoicing'),
             )
         );
 
@@ -656,89 +656,89 @@ 
     $invoices = wpinv_get_invoices(
 
         array(
-            'page'     => ( get_query_var( 'paged' ) ) ? absint( get_query_var( 'paged' ) ) : 1,
+            'page'     => (get_query_var('paged')) ? absint(get_query_var('paged')) : 1,
             'user'     => $user_id,
             'paginate' => true,
         )
 
     );
 
-    if ( empty( $invoices->total ) ) {
+    if (empty($invoices->total)) {
 
         return aui()->alert(
             array(
                 'type'    => 'info',
-                'content' => __( 'No invoices found.', 'invoicing' ),
+                'content' => __('No invoices found.', 'invoicing'),
             )
         );
 
     }
 
     // Load the template.
-    return wpinv_get_template_html( 'invoice-history.php', compact( 'invoices' ) );
+    return wpinv_get_template_html('invoice-history.php', compact('invoices'));
 
 }
 
 function wpinv_pay_for_invoice() {
     global $wpinv_euvat;
     
-    if ( isset( $_GET['invoice_key'] ) ) {
+    if (isset($_GET['invoice_key'])) {
         $checkout_uri   = wpinv_get_checkout_uri();
-        $invoice_key    = sanitize_text_field( $_GET['invoice_key'] );
+        $invoice_key    = sanitize_text_field($_GET['invoice_key']);
         
-        if ( empty( $invoice_key ) ) {
-            wpinv_set_error( 'invalid_invoice', __( 'Invoice not found', 'invoicing' ) );
-            wp_redirect( $checkout_uri );
+        if (empty($invoice_key)) {
+            wpinv_set_error('invalid_invoice', __('Invoice not found', 'invoicing'));
+            wp_redirect($checkout_uri);
             exit();
         }
         
-        do_action( 'wpinv_check_pay_for_invoice', $invoice_key );
+        do_action('wpinv_check_pay_for_invoice', $invoice_key);
 
-        $invoice_id    = wpinv_get_invoice_id_by_key( $invoice_key );
-        $user_can_view = wpinv_can_view_receipt( $invoice_key );
-        if ( $user_can_view && isset( $_GET['invoice-id'] ) ) {
-            $invoice_id     = (int)$_GET['invoice-id'];
-            $user_can_view  = $invoice_key == wpinv_get_payment_key( (int)$_GET['invoice-id'] ) ? true : false;
+        $invoice_id    = wpinv_get_invoice_id_by_key($invoice_key);
+        $user_can_view = wpinv_can_view_receipt($invoice_key);
+        if ($user_can_view && isset($_GET['invoice-id'])) {
+            $invoice_id     = (int) $_GET['invoice-id'];
+            $user_can_view  = $invoice_key == wpinv_get_payment_key((int) $_GET['invoice-id']) ? true : false;
         }
         
-        if ( $invoice_id && $user_can_view && ( $invoice = wpinv_get_invoice( $invoice_id ) ) ) {
-            if ( $invoice->needs_payment() ) {
+        if ($invoice_id && $user_can_view && ($invoice = wpinv_get_invoice($invoice_id))) {
+            if ($invoice->needs_payment()) {
                 $data                   = array();
                 $data['invoice_id']     = $invoice_id;
-                $data['cart_discounts'] = $invoice->get_discounts( true );
+                $data['cart_discounts'] = $invoice->get_discounts(true);
                 
-                wpinv_set_checkout_session( $data );
+                wpinv_set_checkout_session($data);
                 
-                if ( wpinv_get_option( 'vat_ip_country_default' ) ) {
+                if (wpinv_get_option('vat_ip_country_default')) {
                     $_POST['country']   = $wpinv_euvat->get_country_by_ip();
                     $_POST['state']     = $_POST['country'] == $invoice->country ? $invoice->state : '';
                     
-                    wpinv_recalculate_tax( true );
+                    wpinv_recalculate_tax(true);
                 }
                 
             } else {
                 $checkout_uri = $invoice->get_view_url();
             }
         } else {
-            wpinv_set_error( 'invalid_invoice', __( 'You are not allowed to view this invoice', 'invoicing' ) );
+            wpinv_set_error('invalid_invoice', __('You are not allowed to view this invoice', 'invoicing'));
             
-            $checkout_uri = is_user_logged_in() ? wpinv_get_history_page_uri() : wp_login_url( get_permalink() );
+            $checkout_uri = is_user_logged_in() ? wpinv_get_history_page_uri() : wp_login_url(get_permalink());
         }
         
-        if(wp_redirect( $checkout_uri )){
+        if (wp_redirect($checkout_uri)) {
             exit;
         };
         wpinv_die();
     }
 }
-add_action( 'wpinv_pay_for_invoice', 'wpinv_pay_for_invoice' );
+add_action('wpinv_pay_for_invoice', 'wpinv_pay_for_invoice');
 
-function wpinv_invoice_status_label( $status, $status_display = '' ) {
-    if ( empty( $status_display ) ) {
-        $status_display = wpinv_status_nicename( $status );
+function wpinv_invoice_status_label($status, $status_display = '') {
+    if (empty($status_display)) {
+        $status_display = wpinv_status_nicename($status);
     }
     
-    switch ( $status ) {
+    switch ($status) {
         case 'publish' :
         case 'wpi-renewal' :
             $class = 'label-success';
@@ -763,159 +763,159 @@ 
 
     $label = '<span class="label label-inv-' . $status . ' ' . $class . '">' . $status_display . '</span>';
 
-    return apply_filters( 'wpinv_invoice_status_label', $label, $status, $status_display );
+    return apply_filters('wpinv_invoice_status_label', $label, $status, $status_display);
 }
 
-function wpinv_format_invoice_number( $number, $type = '' ) {
-    $check = apply_filters( 'wpinv_pre_format_invoice_number', null, $number, $type );
-    if ( null !== $check ) {
+function wpinv_format_invoice_number($number, $type = '') {
+    $check = apply_filters('wpinv_pre_format_invoice_number', null, $number, $type);
+    if (null !== $check) {
         return $check;
     }
 
-    if ( !empty( $number ) && !is_numeric( $number ) ) {
+    if (!empty($number) && !is_numeric($number)) {
         return $number;
     }
 
-    $padd  = wpinv_get_option( 'invoice_number_padd' );
-    $prefix  = wpinv_get_option( 'invoice_number_prefix' );
-    $postfix = wpinv_get_option( 'invoice_number_postfix' );
+    $padd = wpinv_get_option('invoice_number_padd');
+    $prefix  = wpinv_get_option('invoice_number_prefix');
+    $postfix = wpinv_get_option('invoice_number_postfix');
     
-    $padd = absint( $padd );
-    $formatted_number = absint( $number );
+    $padd = absint($padd);
+    $formatted_number = absint($number);
     
-    if ( $padd > 0 ) {
-        $formatted_number = zeroise( $formatted_number, $padd );
+    if ($padd > 0) {
+        $formatted_number = zeroise($formatted_number, $padd);
     }    
 
     $formatted_number = $prefix . $formatted_number . $postfix;
 
-    return apply_filters( 'wpinv_format_invoice_number', $formatted_number, $number, $prefix, $postfix, $padd );
+    return apply_filters('wpinv_format_invoice_number', $formatted_number, $number, $prefix, $postfix, $padd);
 }
 
-function wpinv_get_next_invoice_number( $type = '' ) {
-    $check = apply_filters( 'wpinv_get_pre_next_invoice_number', null, $type );
-    if ( null !== $check ) {
+function wpinv_get_next_invoice_number($type = '') {
+    $check = apply_filters('wpinv_get_pre_next_invoice_number', null, $type);
+    if (null !== $check) {
         return $check;
     }
     
-    if ( !wpinv_sequential_number_active() ) {
+    if (!wpinv_sequential_number_active()) {
         return false;
     }
 
-    $number = $last_number = get_option( 'wpinv_last_invoice_number', 0 );
-    $start  = wpinv_get_option( 'invoice_sequence_start', 1 );
-    if ( !absint( $start ) > 0 ) {
+    $number = $last_number = get_option('wpinv_last_invoice_number', 0);
+    $start  = wpinv_get_option('invoice_sequence_start', 1);
+    if (!absint($start) > 0) {
         $start = 1;
     }
     $increment_number = true;
     $save_number = false;
 
-    if ( !empty( $number ) && !is_numeric( $number ) && $number == wpinv_format_invoice_number( $number ) ) {
-        $number = wpinv_clean_invoice_number( $number );
+    if (!empty($number) && !is_numeric($number) && $number == wpinv_format_invoice_number($number)) {
+        $number = wpinv_clean_invoice_number($number);
     }
 
-    if ( empty( $number ) ) {
-        if ( !( $last_number === 0 || $last_number === '0' ) ) {
-            $last_invoice = wpinv_get_invoices( array( 'limit' => 1, 'order' => 'DESC', 'orderby' => 'ID', 'return' => 'posts', 'fields' => 'ids', 'status' => array_keys( wpinv_get_invoice_statuses( true, true ) ) ) );
+    if (empty($number)) {
+        if (!($last_number === 0 || $last_number === '0')) {
+            $last_invoice = wpinv_get_invoices(array('limit' => 1, 'order' => 'DESC', 'orderby' => 'ID', 'return' => 'posts', 'fields' => 'ids', 'status' => array_keys(wpinv_get_invoice_statuses(true, true))));
 
-            if ( !empty( $last_invoice[0] ) && $invoice_number = wpinv_get_invoice_number( $last_invoice[0] ) ) {
-                if ( is_numeric( $invoice_number ) ) {
+            if (!empty($last_invoice[0]) && $invoice_number = wpinv_get_invoice_number($last_invoice[0])) {
+                if (is_numeric($invoice_number)) {
                     $number = $invoice_number;
                 } else {
-                    $number = wpinv_clean_invoice_number( $invoice_number );
+                    $number = wpinv_clean_invoice_number($invoice_number);
                 }
             }
 
-            if ( empty( $number ) ) {
+            if (empty($number)) {
                 $increment_number = false;
                 $number = $start;
-                $save_number = ( $number - 1 );
+                $save_number = ($number - 1);
             } else {
                 $save_number = $number;
             }
         }
     }
 
-    if ( $start > $number ) {
+    if ($start > $number) {
         $increment_number = false;
         $number = $start;
-        $save_number = ( $number - 1 );
+        $save_number = ($number - 1);
     }
 
-    if ( $save_number !== false ) {
-        update_option( 'wpinv_last_invoice_number', $save_number );
+    if ($save_number !== false) {
+        update_option('wpinv_last_invoice_number', $save_number);
     }
     
-    $increment_number = apply_filters( 'wpinv_increment_payment_number', $increment_number, $number );
+    $increment_number = apply_filters('wpinv_increment_payment_number', $increment_number, $number);
 
-    if ( $increment_number ) {
+    if ($increment_number) {
         $number++;
     }
 
-    return apply_filters( 'wpinv_get_next_invoice_number', $number );
+    return apply_filters('wpinv_get_next_invoice_number', $number);
 }
 
-function wpinv_clean_invoice_number( $number, $type = '' ) {
-    $check = apply_filters( 'wpinv_pre_clean_invoice_number', null, $number, $type );
-    if ( null !== $check ) {
+function wpinv_clean_invoice_number($number, $type = '') {
+    $check = apply_filters('wpinv_pre_clean_invoice_number', null, $number, $type);
+    if (null !== $check) {
         return $check;
     }
     
-    $prefix  = wpinv_get_option( 'invoice_number_prefix' );
-    $postfix = wpinv_get_option( 'invoice_number_postfix' );
+    $prefix  = wpinv_get_option('invoice_number_prefix');
+    $postfix = wpinv_get_option('invoice_number_postfix');
 
-    $number = preg_replace( '/' . $prefix . '/', '', $number, 1 );
+    $number = preg_replace('/' . $prefix . '/', '', $number, 1);
 
-    $length      = strlen( $number );
-    $postfix_pos = strrpos( $number, $postfix );
+    $length      = strlen($number);
+    $postfix_pos = strrpos($number, $postfix);
     
-    if ( false !== $postfix_pos ) {
-        $number      = substr_replace( $number, '', $postfix_pos, $length );
+    if (false !== $postfix_pos) {
+        $number = substr_replace($number, '', $postfix_pos, $length);
     }
 
-    $number = intval( $number );
+    $number = intval($number);
 
-    return apply_filters( 'wpinv_clean_invoice_number', $number, $prefix, $postfix );
+    return apply_filters('wpinv_clean_invoice_number', $number, $prefix, $postfix);
 }
 
-function wpinv_update_invoice_number( $post_ID, $save_sequential = false, $type = '' ) {
+function wpinv_update_invoice_number($post_ID, $save_sequential = false, $type = '') {
     global $wpdb;
 
-    $check = apply_filters( 'wpinv_pre_update_invoice_number', null, $post_ID, $save_sequential, $type );
-    if ( null !== $check ) {
+    $check = apply_filters('wpinv_pre_update_invoice_number', null, $post_ID, $save_sequential, $type);
+    if (null !== $check) {
         return $check;
     }
 
-    if ( wpinv_sequential_number_active() ) {
+    if (wpinv_sequential_number_active()) {
         $number = wpinv_get_next_invoice_number();
 
-        if ( $save_sequential ) {
-            update_option( 'wpinv_last_invoice_number', $number );
+        if ($save_sequential) {
+            update_option('wpinv_last_invoice_number', $number);
         }
     } else {
         $number = $post_ID;
     }
 
-    $number = wpinv_format_invoice_number( $number );
+    $number = wpinv_format_invoice_number($number);
 
-    update_post_meta( $post_ID, '_wpinv_number', $number );
+    update_post_meta($post_ID, '_wpinv_number', $number);
 
-    $wpdb->update( $wpdb->posts, array( 'post_title' => $number ), array( 'ID' => $post_ID ) );
+    $wpdb->update($wpdb->posts, array('post_title' => $number), array('ID' => $post_ID));
 
-    clean_post_cache( $post_ID );
+    clean_post_cache($post_ID);
 
     return $number;
 }
 
-function wpinv_post_name_prefix( $post_type = 'wpi_invoice' ) {
-    return apply_filters( 'wpinv_post_name_prefix', 'inv-', $post_type );
+function wpinv_post_name_prefix($post_type = 'wpi_invoice') {
+    return apply_filters('wpinv_post_name_prefix', 'inv-', $post_type);
 }
 
-function wpinv_generate_post_name( $post_ID ) {
-    $prefix = wpinv_post_name_prefix( get_post_type( $post_ID ) );
-    $post_name = sanitize_title( $prefix . $post_ID );
+function wpinv_generate_post_name($post_ID) {
+    $prefix = wpinv_post_name_prefix(get_post_type($post_ID));
+    $post_name = sanitize_title($prefix . $post_ID);
 
-    return apply_filters( 'wpinv_generate_post_name', $post_name, $post_ID, $prefix );
+    return apply_filters('wpinv_generate_post_name', $post_name, $post_ID, $prefix);
 }
 
 /**
@@ -923,8 +923,8 @@ 
  * 
  * @param int|string|object|WPInv_Invoice|WPInv_Legacy_Invoice|WP_Post $invoice Invoice id, key, transaction id, number or object.
  */
-function wpinv_is_invoice_viewed( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function wpinv_is_invoice_viewed($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
     return (bool) $invoice->get_is_viewed();
 }
 
@@ -933,51 +933,51 @@ 
  * 
  * @param int|string|object|WPInv_Invoice|WPInv_Legacy_Invoice|WP_Post $invoice Invoice id, key, transaction id, number or object.
  */
-function getpaid_maybe_mark_invoice_as_viewed( $invoice ) {
-    $invoice = new WPInv_Invoice( $invoice );
+function getpaid_maybe_mark_invoice_as_viewed($invoice) {
+    $invoice = new WPInv_Invoice($invoice);
 
-    if ( get_current_user_id() == $invoice->get_user_id() && ! $invoice->get_is_viewed() ) {
-        $invoice->set_is_viewed( true );
+    if (get_current_user_id() == $invoice->get_user_id() && !$invoice->get_is_viewed()) {
+        $invoice->set_is_viewed(true);
         $invoice->save();
     }
 
 }
-add_action( 'wpinv_invoice_print_before_display', 'getpaid_maybe_mark_invoice_as_viewed' );
-add_action( 'wpinv_before_receipt', 'getpaid_maybe_mark_invoice_as_viewed' );
+add_action('wpinv_invoice_print_before_display', 'getpaid_maybe_mark_invoice_as_viewed');
+add_action('wpinv_before_receipt', 'getpaid_maybe_mark_invoice_as_viewed');
 
 /**
  * Fetch a subscription given an invoice.
  *
  * @return WPInv_Subscription|bool
  */
-function wpinv_get_subscription( $invoice ) {
+function wpinv_get_subscription($invoice) {
 
     // Abort if we do not have an invoice.
-    if ( empty( $invoice ) ) {
+    if (empty($invoice)) {
         return false;
     }
 
     // Retrieve the invoice.
-    $invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice($invoice);
 
     // Ensure it is a recurring invoice.
-    if ( ! $invoice->is_recurring() ) {
+    if (!$invoice->is_recurring()) {
         return false;
     }
 
     // Fetch the subscription handler.
-    $subs_db    = new WPInv_Subscriptions_DB();
+    $subs_db = new WPInv_Subscriptions_DB();
 
     // Fetch the parent in case it is a renewal.
-    if ( $invoice->is_renewal() ) {
-        $subs = $subs_db->get_subscriptions( array( 'parent_payment_id' => $invoice->get_parent_id(), 'number' => 1 ) );
+    if ($invoice->is_renewal()) {
+        $subs = $subs_db->get_subscriptions(array('parent_payment_id' => $invoice->get_parent_id(), 'number' => 1));
     } else {
-        $subs = $subs_db->get_subscriptions( array( 'parent_payment_id' => $invoice->get_id(), 'number' => 1 ) );
+        $subs = $subs_db->get_subscriptions(array('parent_payment_id' => $invoice->get_id(), 'number' => 1));
     }
 
     // Return the subscription if it exists.
-    if ( ! empty( $subs ) ) {
-        return reset( $subs );
+    if (!empty($subs)) {
+        return reset($subs);
     }
 
     return false;
@@ -991,27 +991,27 @@ 
  * @param array $status_transition
  * @todo: descrease customer/store earnings
  */
-function getpaid_maybe_process_refund( $invoice_id, $invoice, $status_transition ) {
+function getpaid_maybe_process_refund($invoice_id, $invoice, $status_transition) {
 
-    if ( empty( $status_transition['from'] ) || ! in_array( $status_transition['from'], array( 'publish', 'wpi-processing', 'wpi-renewal' ) ) ) {
+    if (empty($status_transition['from']) || !in_array($status_transition['from'], array('publish', 'wpi-processing', 'wpi-renewal'))) {
         return;
     }
 
     $discount_code = $invoice->get_discount_code();
-    if ( ! empty( $discount_code ) ) {
-        $discount = wpinv_get_discount_obj( $discount_code );
+    if (!empty($discount_code)) {
+        $discount = wpinv_get_discount_obj($discount_code);
 
-        if ( $discount->exists() ) {
+        if ($discount->exists()) {
             $discount->increase_usage( -1 );
         }
 
     }
 
-    do_action( 'wpinv_pre_refund_invoice', $invoice, $invoice_id );
-    do_action( 'wpinv_refund_invoice', $invoice, $invoice_id );
-    do_action( 'wpinv_post_refund_invoice', $invoice, $invoice_id );
+    do_action('wpinv_pre_refund_invoice', $invoice, $invoice_id);
+    do_action('wpinv_refund_invoice', $invoice, $invoice_id);
+    do_action('wpinv_post_refund_invoice', $invoice, $invoice_id);
 }
-add_action( 'getpaid_invoice_status_wpi-refunded', 'getpaid_maybe_process_refund', 10, 3 );
+add_action('getpaid_invoice_status_wpi-refunded', 'getpaid_maybe_process_refund', 10, 3);
 
 
 /**
@@ -1019,48 +1019,48 @@ 
  *
  * @param int $invoice_id
  */
-function getpaid_process_invoice_payment( $invoice_id ) {
+function getpaid_process_invoice_payment($invoice_id) {
 
     // Fetch the invoice.
-    $invoice = new WPInv_Invoice( $invoice_id );
+    $invoice = new WPInv_Invoice($invoice_id);
 
     // We only want to do this once.
-    if ( 1 ==  get_post_meta( $invoice_id, 'wpinv_processed_payment', true ) ) {
+    if (1 == get_post_meta($invoice_id, 'wpinv_processed_payment', true)) {
         return;
     }
 
-    update_post_meta( $invoice_id, 'wpinv_processed_payment', 1 );
+    update_post_meta($invoice_id, 'wpinv_processed_payment', 1);
 
     // Fires when processing a payment.
-    do_action( 'getpaid_process_payment', $invoice );
+    do_action('getpaid_process_payment', $invoice);
 
     // Fire an action for each invoice item.
-    foreach( $invoice->get_items() as $item ) {
-        do_action( 'getpaid_process_item_payment', $item, $invoice );
+    foreach ($invoice->get_items() as $item) {
+        do_action('getpaid_process_item_payment', $item, $invoice);
     }
 
     // Increase discount usage.
     $discount_code = $invoice->get_discount_code();
-    if ( ! empty( $discount_code ) ) {
-        $discount = wpinv_get_discount_obj( $discount_code );
+    if (!empty($discount_code)) {
+        $discount = wpinv_get_discount_obj($discount_code);
 
-        if ( $discount->exists() ) {
+        if ($discount->exists()) {
             $discount->increase_usage();
         }
 
     }
 
     // Record reverse vat.
-    if ( 'invoice' == $invoice->get_type() && wpinv_use_taxes() && ! $invoice->get_disable_taxes() ) {
+    if ('invoice' == $invoice->get_type() && wpinv_use_taxes() && !$invoice->get_disable_taxes()) {
 
-        if ( WPInv_EUVat::same_country_rule() == 'no' && wpinv_is_base_country( $invoice->get_country() ) ) {
-            $invoice->add_note( __( 'VAT was reverse charged', 'invoicing' ), false, false, true );
+        if (WPInv_EUVat::same_country_rule() == 'no' && wpinv_is_base_country($invoice->get_country())) {
+            $invoice->add_note(__('VAT was reverse charged', 'invoicing'), false, false, true);
         }
 
     }
 
 }
-add_action( 'getpaid_invoice_payment_status_changed', 'getpaid_process_invoice_payment' );
+add_action('getpaid_invoice_payment_status_changed', 'getpaid_process_invoice_payment');
 
 /**
  * Returns an array of invoice item columns
@@ -1068,13 +1068,13 @@ 
  * @param int|WPInv_Invoice $invoice
  * @return array
  */
-function getpaid_invoice_item_columns( $invoice ) {
+function getpaid_invoice_item_columns($invoice) {
 
     // Prepare the invoice.
-    $invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice($invoice);
 
     // Abort if there is no invoice.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return array();
     }
 
@@ -1082,47 +1082,47 @@ 
     $columns = apply_filters(
         'getpaid_invoice_item_columns',
         array(
-            'name'     => __( 'Item', 'invoicing' ),
-            'price'    => __( 'Price', 'invoicing' ),
-            'quantity' => __( 'Quantity', 'invoicing' ),
-            'subtotal' => __( 'Subtotal', 'invoicing' ),
+            'name'     => __('Item', 'invoicing'),
+            'price'    => __('Price', 'invoicing'),
+            'quantity' => __('Quantity', 'invoicing'),
+            'subtotal' => __('Subtotal', 'invoicing'),
         ),
         $invoice
     );
 
     // Quantities.
-    if ( isset( $columns[ 'quantity' ] ) ) {
+    if (isset($columns['quantity'])) {
 
-        if ( 'hours' == $invoice->get_template() ) {
-            $columns[ 'quantity' ] = __( 'Hours', 'invoicing' );
+        if ('hours' == $invoice->get_template()) {
+            $columns['quantity'] = __('Hours', 'invoicing');
         }
 
-        if ( ! wpinv_item_quantities_enabled() || 'amount' == $invoice->get_template() ) {
-            unset( $columns[ 'quantity' ] );
+        if (!wpinv_item_quantities_enabled() || 'amount' == $invoice->get_template()) {
+            unset($columns['quantity']);
         }
 
     }
 
 
     // Price.
-    if ( isset( $columns[ 'price' ] ) ) {
+    if (isset($columns['price'])) {
 
-        if ( 'amount' == $invoice->get_template() ) {
-            $columns[ 'price' ] = __( 'Amount', 'invoicing' );
+        if ('amount' == $invoice->get_template()) {
+            $columns['price'] = __('Amount', 'invoicing');
         }
 
-        if ( 'hours' == $invoice->get_template() ) {
-            $columns[ 'price' ] = __( 'Rate', 'invoicing' );
+        if ('hours' == $invoice->get_template()) {
+            $columns['price'] = __('Rate', 'invoicing');
         }
 
     }
 
 
     // Sub total.
-    if ( isset( $columns[ 'subtotal' ] ) ) {
+    if (isset($columns['subtotal'])) {
 
-        if ( 'amount' == $invoice->get_template() ) {
-            unset( $columns[ 'subtotal' ] );
+        if ('amount' == $invoice->get_template()) {
+            unset($columns['subtotal']);
         }
 
     }
@@ -1136,29 +1136,29 @@ 
  * @param int|WPInv_Invoice $invoice
  * @return array
  */
-function getpaid_invoice_totals_rows( $invoice ) {
+function getpaid_invoice_totals_rows($invoice) {
 
     // Prepare the invoice.
-    $invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice($invoice);
 
     // Abort if there is no invoice.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return array();
     }
 
     $totals = apply_filters(
         'getpaid_invoice_totals_rows',
         array(
-            'subtotal' => __( 'Subtotal', 'invoicing' ),
-            'tax'      => __( 'Tax', 'invoicing' ),
-            'discount' => __( 'Discount', 'invoicing' ),
-            'total'    => __( 'Total', 'invoicing' ),
+            'subtotal' => __('Subtotal', 'invoicing'),
+            'tax'      => __('Tax', 'invoicing'),
+            'discount' => __('Discount', 'invoicing'),
+            'total'    => __('Total', 'invoicing'),
         ),
         $invoice
     );
 
-    if ( ( $invoice->get_disable_taxes() || ! wpinv_use_taxes() ) && isset( $totals['tax'] ) ) {
-        unset( $totals['tax'] );
+    if (($invoice->get_disable_taxes() || !wpinv_use_taxes()) && isset($totals['tax'])) {
+        unset($totals['tax']);
     }
 
     return $totals;
@@ -1170,18 +1170,18 @@ 
  * @param int $invoice_id
  * @param WPInv_Invoice $invoice
  */
-function getpaid_new_invoice( $invoice_id, $invoice ) {
+function getpaid_new_invoice($invoice_id, $invoice) {
 
     // Add an invoice created note.
     $invoice->add_note(
         wp_sprintf(
-            __( 'Invoice created with the status "%s".', 'invoicing' ),
-            wpinv_status_nicename( $invoice->get_status() )
+            __('Invoice created with the status "%s".', 'invoicing'),
+            wpinv_status_nicename($invoice->get_status())
         )
     );
 
 }
-add_action( 'getpaid_new_invoice', 'getpaid_new_invoice', 10, 2 );
+add_action('getpaid_new_invoice', 'getpaid_new_invoice', 10, 2);
 
 /**
  * This function updates invoice caches.
@@ -1189,21 +1189,21 @@ 
  * @param int $invoice_id
  * @param WPInv_Invoice $invoice
  */
-function getpaid_update_invoice_caches( $invoice_id, $invoice ) {
+function getpaid_update_invoice_caches($invoice_id, $invoice) {
 
     // Cache invoice number.
-    wp_cache_set( $invoice->get_number(), $invoice_id, "getpaid_invoice_numbers_to_invoice_ids" );
+    wp_cache_set($invoice->get_number(), $invoice_id, "getpaid_invoice_numbers_to_invoice_ids");
 
     // Cache invoice key.
-    wp_cache_set( $invoice->get_key(), $invoice_id, "getpaid_invoice_keys_to_invoice_ids" );
+    wp_cache_set($invoice->get_key(), $invoice_id, "getpaid_invoice_keys_to_invoice_ids");
 
     // (Maybe) cache transaction id.
     $transaction_id = $invoice->get_transaction_id();
 
-    if ( ! empty( $transaction_id ) ) {
-        wp_cache_set( $transaction_id, $invoice_id, "getpaid_invoice_transaction_ids_to_invoice_ids" );
+    if (!empty($transaction_id)) {
+        wp_cache_set($transaction_id, $invoice_id, "getpaid_invoice_transaction_ids_to_invoice_ids");
     }
 
 }
-add_action( 'getpaid_new_invoice', 'getpaid_update_invoice_caches', 5, 2 );
-add_action( 'getpaid_update_invoice', 'getpaid_update_invoice_caches', 5, 2 );
+add_action('getpaid_new_invoice', 'getpaid_update_invoice_caches', 5, 2);
+add_action('getpaid_update_invoice', 'getpaid_update_invoice_caches', 5, 2);

includes/wpinv-email-functions.php

Spacing +670 added lines, -670 removed lines

@@ -7,12 +7,12 @@ 
  */
 
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
 function wpinv_init_transactional_emails() {
-    $email_actions = apply_filters( 'wpinv_email_actions', array(
+    $email_actions = apply_filters('wpinv_email_actions', array(
         'wpinv_status_wpi-pending_to_wpi-processing',
         'wpinv_status_wpi-pending_to_publish',
         'wpinv_status_wpi-pending_to_wpi-cancelled',
@@ -30,385 +30,385 @@ 
         'wpinv_fully_refunded',
         'wpinv_partially_refunded',
         'wpinv_new_invoice_note'
-    ) );
+    ));
 
-    foreach ( $email_actions as $action ) {
-        add_action( $action, 'wpinv_send_transactional_email', 10, 10 );
+    foreach ($email_actions as $action) {
+        add_action($action, 'wpinv_send_transactional_email', 10, 10);
     }
 }
-add_action( 'init', 'wpinv_init_transactional_emails' );
+add_action('init', 'wpinv_init_transactional_emails');
 
 // New invoice email
-add_action( 'wpinv_status_wpi-pending_to_wpi-processing_notification', 'wpinv_new_invoice_notification' );
-add_action( 'wpinv_status_wpi-pending_to_publish_notification', 'wpinv_new_invoice_notification' );
-add_action( 'wpinv_status_wpi-pending_to_wpi-onhold_notification', 'wpinv_new_invoice_notification' );
-add_action( 'wpinv_status_wpi-failed_to_wpi-processing_notification', 'wpinv_new_invoice_notification' );
-add_action( 'wpinv_status_wpi-failed_to_publish_notification', 'wpinv_new_invoice_notification' );
-add_action( 'wpinv_status_wpi-failed_to_wpi-onhold_notification', 'wpinv_new_invoice_notification' );
+add_action('wpinv_status_wpi-pending_to_wpi-processing_notification', 'wpinv_new_invoice_notification');
+add_action('wpinv_status_wpi-pending_to_publish_notification', 'wpinv_new_invoice_notification');
+add_action('wpinv_status_wpi-pending_to_wpi-onhold_notification', 'wpinv_new_invoice_notification');
+add_action('wpinv_status_wpi-failed_to_wpi-processing_notification', 'wpinv_new_invoice_notification');
+add_action('wpinv_status_wpi-failed_to_publish_notification', 'wpinv_new_invoice_notification');
+add_action('wpinv_status_wpi-failed_to_wpi-onhold_notification', 'wpinv_new_invoice_notification');
 
 // Cancelled invoice email
-add_action( 'wpinv_status_wpi-pending_to_wpi-cancelled_notification', 'wpinv_cancelled_invoice_notification' );
-add_action( 'wpinv_status_wpi-onhold_to_wpi-cancelled_notification', 'wpinv_cancelled_invoice_notification' );
+add_action('wpinv_status_wpi-pending_to_wpi-cancelled_notification', 'wpinv_cancelled_invoice_notification');
+add_action('wpinv_status_wpi-onhold_to_wpi-cancelled_notification', 'wpinv_cancelled_invoice_notification');
 
 // Failed invoice email
-add_action( 'wpinv_status_wpi-pending_to_wpi-failed_notification', 'wpinv_failed_invoice_notification' );
-add_action( 'wpinv_status_wpi-onhold_to_wpi-failed_notification', 'wpinv_failed_invoice_notification' );
+add_action('wpinv_status_wpi-pending_to_wpi-failed_notification', 'wpinv_failed_invoice_notification');
+add_action('wpinv_status_wpi-onhold_to_wpi-failed_notification', 'wpinv_failed_invoice_notification');
 
 // On hold invoice email
-add_action( 'wpinv_status_wpi-pending_to_wpi-onhold_notification', 'wpinv_onhold_invoice_notification' );
-add_action( 'wpinv_status_wpi-failed_to_wpi-onhold_notification', 'wpinv_onhold_invoice_notification' );
+add_action('wpinv_status_wpi-pending_to_wpi-onhold_notification', 'wpinv_onhold_invoice_notification');
+add_action('wpinv_status_wpi-failed_to_wpi-onhold_notification', 'wpinv_onhold_invoice_notification');
 
 // Processing invoice email
-add_action( 'wpinv_status_wpi-pending_to_wpi-processing_notification', 'wpinv_processing_invoice_notification' );
+add_action('wpinv_status_wpi-pending_to_wpi-processing_notification', 'wpinv_processing_invoice_notification');
 
 // Paid invoice email
-add_action( 'wpinv_status_publish_notification', 'wpinv_completed_invoice_notification' );
+add_action('wpinv_status_publish_notification', 'wpinv_completed_invoice_notification');
 
 // Refunded invoice email
-add_action( 'wpinv_fully_refunded_notification', 'wpinv_fully_refunded_notification' );
-add_action( 'wpinv_partially_refunded_notification', 'wpinv_partially_refunded_notification' );
-add_action( 'wpinv_status_publish_to_wpi-refunded_notification', 'wpinv_fully_refunded_notification' );
-add_action( 'wpinv_status_wpi-processing_to_wpi-refunded_notification', 'wpinv_fully_refunded_notification' );
+add_action('wpinv_fully_refunded_notification', 'wpinv_fully_refunded_notification');
+add_action('wpinv_partially_refunded_notification', 'wpinv_partially_refunded_notification');
+add_action('wpinv_status_publish_to_wpi-refunded_notification', 'wpinv_fully_refunded_notification');
+add_action('wpinv_status_wpi-processing_to_wpi-refunded_notification', 'wpinv_fully_refunded_notification');
 
 // Invoice note
-add_action( 'wpinv_new_invoice_note_notification', 'wpinv_new_invoice_note_notification' );
+add_action('wpinv_new_invoice_note_notification', 'wpinv_new_invoice_note_notification');
 
-add_action( 'wpinv_email_header', 'wpinv_email_header' );
-add_action( 'wpinv_email_footer', 'wpinv_email_footer' );
-add_action( 'wpinv_email_invoice_details', 'wpinv_email_invoice_details', 10, 3 );
-add_action( 'wpinv_email_invoice_items', 'wpinv_email_invoice_items', 10, 3 );
-add_action( 'wpinv_email_billing_details', 'wpinv_email_billing_details', 10, 3 );
+add_action('wpinv_email_header', 'wpinv_email_header');
+add_action('wpinv_email_footer', 'wpinv_email_footer');
+add_action('wpinv_email_invoice_details', 'wpinv_email_invoice_details', 10, 3);
+add_action('wpinv_email_invoice_items', 'wpinv_email_invoice_items', 10, 3);
+add_action('wpinv_email_billing_details', 'wpinv_email_billing_details', 10, 3);
 
 function wpinv_send_transactional_email() {
     $args       = func_get_args();
     $function   = current_filter() . '_notification';
-    do_action_ref_array( $function, $args );
+    do_action_ref_array($function, $args);
 }
 
-function wpinv_new_invoice_notification( $invoice_id, $new_status = '' ) {
+function wpinv_new_invoice_notification($invoice_id, $new_status = '') {
     $email_type = 'new_invoice';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
 
-    $invoice = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    if ( !("wpi_invoice" === $invoice->post_type) ) {
+    if (!("wpi_invoice" === $invoice->post_type)) {
         return false;
     }
 
-    $recipient      = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type, true );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type, true);
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
 
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'       => $invoice,
             'email_type'    => $email_type,
             'email_heading' => $email_heading,
             'sent_to_admin' => true,
             'plain_text'    => false,
             'message_body'  => $message_body,
-        ) );
+        ));
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type, true );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type, true);
 
     return $sent;
 }
 
-function wpinv_cancelled_invoice_notification( $invoice_id, $new_status = '' ) {
+function wpinv_cancelled_invoice_notification($invoice_id, $new_status = '') {
     $email_type = 'cancelled_invoice';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
 
-    $invoice = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    if ( !("wpi_invoice" === $invoice->post_type) ) {
+    if (!("wpi_invoice" === $invoice->post_type)) {
         return false;
     }
 
-    $recipient      = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type, true );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type, true);
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
 
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'       => $invoice,
             'email_type'    => $email_type,
             'email_heading' => $email_heading,
             'sent_to_admin' => true,
             'plain_text'    => false,
             'message_body'  => $message_body,
-        ) );
+        ));
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type, true );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type, true);
 
     return $sent;
 }
 
-function wpinv_failed_invoice_notification( $invoice_id, $new_status = '' ) {
+function wpinv_failed_invoice_notification($invoice_id, $new_status = '') {
     $email_type = 'failed_invoice';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
     
-    $invoice = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    if ( !("wpi_invoice" === $invoice->post_type) ) {
+    if (!("wpi_invoice" === $invoice->post_type)) {
         return false;
     }
 
-    $recipient      = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type, true );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type, true);
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
     
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'       => $invoice,
             'email_type'    => $email_type,
             'email_heading' => $email_heading,
             'sent_to_admin' => true,
             'plain_text'    => false,
             'message_body'  => $message_body,
-        ) );
+        ));
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type, true );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type, true);
 
     return $sent;
 }
 
-function wpinv_onhold_invoice_notification( $invoice_id, $new_status = '' ) {
+function wpinv_onhold_invoice_notification($invoice_id, $new_status = '') {
     $email_type = 'onhold_invoice';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
 
-    $invoice = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    if ( !("wpi_invoice" === $invoice->post_type) ) {
+    if (!("wpi_invoice" === $invoice->post_type)) {
         return false;
     }
 
-    $recipient      = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    $extra          = wpinv_email_get_cc_recipients( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient      = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    $extra          = wpinv_email_get_cc_recipients($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type);
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
     
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'       => $invoice,
             'email_type'    => $email_type,
             'email_heading' => $email_heading,
             'sent_to_admin' => false,
             'plain_text'    => false,
             'message_body'  => $message_body,
-        ) );
+        ));
     
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments, $extra );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments, $extra);
     
-    if ( wpinv_mail_admin_bcc_active( $email_type ) ) {
-        $recipient  = wpinv_get_admin_email();
-        $subject    .= ' - ADMIN BCC COPY';
-        wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    if (wpinv_mail_admin_bcc_active($email_type)) {
+        $recipient = wpinv_get_admin_email();
+        $subject .= ' - ADMIN BCC COPY';
+        wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
     }
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type);
 
     return $sent;
 }
 
-function wpinv_processing_invoice_notification( $invoice_id, $new_status = '' ) {
+function wpinv_processing_invoice_notification($invoice_id, $new_status = '') {
     $email_type = 'processing_invoice';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
 
-    $invoice = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    if ( !("wpi_invoice" === $invoice->post_type) ) {
+    if (!("wpi_invoice" === $invoice->post_type)) {
         return false;
     }
 
-    $recipient      = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    $extra          = wpinv_email_get_cc_recipients( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient      = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    $extra          = wpinv_email_get_cc_recipients($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type);
 
     $search                     = array();
     $search['invoice_number']   = '{invoice_number}';
     $search['invoice_date']     = '{invoice_date}';
     $search['name']             = '{name}';
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
     
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'       => $invoice,
             'email_type'    => $email_type,
             'email_heading' => $email_heading,
             'sent_to_admin' => false,
             'plain_text'    => false,
             'message_body'  => $message_body,
-        ) );
+        ));
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments, $extra );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments, $extra);
 
-    if ( wpinv_mail_admin_bcc_active( $email_type ) ) {
-        $recipient  = wpinv_get_admin_email();
-        $subject    .= ' - ADMIN BCC COPY';
-        wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    if (wpinv_mail_admin_bcc_active($email_type)) {
+        $recipient = wpinv_get_admin_email();
+        $subject .= ' - ADMIN BCC COPY';
+        wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
     }
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type);
 
     return $sent;
 }
 
-function wpinv_completed_invoice_notification( $invoice_id, $new_status = '' ) {
+function wpinv_completed_invoice_notification($invoice_id, $new_status = '') {
     $email_type = 'completed_invoice';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
 
-    $invoice = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    if ( !("wpi_invoice" === $invoice->post_type) ) {
+    if (!("wpi_invoice" === $invoice->post_type)) {
         return false;
     }
 
-    if($invoice->is_renewal() && wpinv_email_is_enabled( 'completed_invoice_renewal' )){
+    if ($invoice->is_renewal() && wpinv_email_is_enabled('completed_invoice_renewal')) {
         return false;
     }
 
-    $recipient      = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    $extra          = wpinv_email_get_cc_recipients( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient      = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    $extra          = wpinv_email_get_cc_recipients($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type);
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
 
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'       => $invoice,
             'email_type'    => $email_type,
             'email_heading' => $email_heading,
             'sent_to_admin' => false,
             'plain_text'    => false,
             'message_body'  => $message_body,
-        ) );
+        ));
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments, $extra );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments, $extra);
 
-    if ( wpinv_mail_admin_bcc_active( $email_type ) ) {
-        $recipient  = wpinv_get_admin_email();
-        $subject    .= ' - ADMIN BCC COPY';
-        wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    if (wpinv_mail_admin_bcc_active($email_type)) {
+        $recipient = wpinv_get_admin_email();
+        $subject .= ' - ADMIN BCC COPY';
+        wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
     }
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type);
 
     return $sent;
 }
 
-function wpinv_fully_refunded_notification( $invoice_id, $new_status = '' ) {
+function wpinv_fully_refunded_notification($invoice_id, $new_status = '') {
     $email_type = 'refunded_invoice';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
 
-    $invoice = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    if ( !("wpi_invoice" === $invoice->post_type) ) {
+    if (!("wpi_invoice" === $invoice->post_type)) {
         return false;
     }
 
-    $recipient      = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    $extra          = wpinv_email_get_cc_recipients( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient      = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    $extra          = wpinv_email_get_cc_recipients($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type);
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
 
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'           => $invoice,
             'email_type'        => $email_type,
             'email_heading'     => $email_heading,
@@ -416,51 +416,51 @@ 
             'plain_text'        => false,
             'partial_refund'    => false,
             'message_body'      => $message_body,
-        ) );
+        ));
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments, $extra );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments, $extra);
 
-    if ( wpinv_mail_admin_bcc_active( $email_type ) ) {
-        $recipient  = wpinv_get_admin_email();
-        $subject    .= ' - ADMIN BCC COPY';
-        wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    if (wpinv_mail_admin_bcc_active($email_type)) {
+        $recipient = wpinv_get_admin_email();
+        $subject .= ' - ADMIN BCC COPY';
+        wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
     }
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type);
 
     return $sent;
 }
 
-function wpinv_partially_refunded_notification( $invoice_id, $new_status = '' ) {
+function wpinv_partially_refunded_notification($invoice_id, $new_status = '') {
     $email_type = 'refunded_invoice';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
 
-    $invoice = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    if ( !("wpi_invoice" === $invoice->post_type) ) {
+    if (!("wpi_invoice" === $invoice->post_type)) {
         return false;
     }
 
-    $recipient      = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    $extra          = wpinv_email_get_cc_recipients( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient      = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    $extra          = wpinv_email_get_cc_recipients($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type);
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
 
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'           => $invoice,
             'email_type'        => $email_type,
             'email_heading'     => $email_heading,
@@ -468,97 +468,97 @@ 
             'plain_text'        => false,
             'partial_refund'    => true,
             'message_body'      => $message_body,
-        ) );
+        ));
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments, $extra );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments, $extra);
 
-    if ( wpinv_mail_admin_bcc_active( $email_type ) ) {
-        $recipient  = wpinv_get_admin_email();
-        $subject    .= ' - ADMIN BCC COPY';
-        wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    if (wpinv_mail_admin_bcc_active($email_type)) {
+        $recipient = wpinv_get_admin_email();
+        $subject .= ' - ADMIN BCC COPY';
+        wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
     }
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type);
 
     return $sent;
 }
 
-function wpinv_new_invoice_note_notification( $invoice_id, $new_status = '' ) {
+function wpinv_new_invoice_note_notification($invoice_id, $new_status = '') {
 }
 
-function wpinv_user_invoice_notification( $invoice_id ) {
+function wpinv_user_invoice_notification($invoice_id) {
     $email_type = 'user_invoice';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return -1;
     }
 
-    $invoice = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    if ( !("wpi_invoice" === $invoice->post_type) ) {
+    if (!("wpi_invoice" === $invoice->post_type)) {
         return false;
     }
 
-    $recipient      = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    $extra          = wpinv_email_get_cc_recipients( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient      = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    $extra          = wpinv_email_get_cc_recipients($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type);
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
     
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'       => $invoice,
             'email_type'    => $email_type,
             'email_heading' => $email_heading,
             'sent_to_admin' => false,
             'plain_text'    => false,
             'message_body'  => $message_body,
-        ) );
+        ));
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments, $extra );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments, $extra);
 
-    if ( wpinv_mail_admin_bcc_active( $email_type ) ) {
-        $recipient  = wpinv_get_admin_email();
-        $subject    .= ' - ADMIN BCC COPY';
-        wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    if (wpinv_mail_admin_bcc_active($email_type)) {
+        $recipient = wpinv_get_admin_email();
+        $subject .= ' - ADMIN BCC COPY';
+        wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
     }
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type);
 
-    if ( $sent ) {
-        $note = __( 'Invoice has been emailed to the user.', 'invoicing' );
+    if ($sent) {
+        $note = __('Invoice has been emailed to the user.', 'invoicing');
     } else {
-        $note = __( 'Fail to send invoice to the user!', 'invoicing' );
+        $note = __('Fail to send invoice to the user!', 'invoicing');
     }
 
-    $invoice->add_note( $note, '', '', true ); // Add system note.
+    $invoice->add_note($note, '', '', true); // Add system note.
 
     return $sent;
 }
 
-function wpinv_user_note_notification( $invoice_id, $args = array() ) {
+function wpinv_user_note_notification($invoice_id, $args = array()) {
     $email_type = 'user_note';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
 
-    $invoice = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    $recipient      = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    $extra          = wpinv_email_get_cc_recipients( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient      = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    $extra          = wpinv_email_get_cc_recipients($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
@@ -566,19 +566,19 @@ 
         'user_note' => ''
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type);
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
 
-    $message_body   = str_replace( '{customer_note}', $args['user_note'], $message_body );
+    $message_body   = str_replace('{customer_note}', $args['user_note'], $message_body);
 
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'       => $invoice,
             'email_type'    => $email_type,
             'email_heading' => $email_heading,
@@ -586,36 +586,36 @@ 
             'plain_text'    => false,
             'message_body'  => $message_body,
             'customer_note' => $args['user_note']
-        ) );
+        ));
 
-    $content        = wpinv_email_format_text( $content, $invoice );
+    $content = wpinv_email_format_text($content, $invoice);
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments, $extra );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments, $extra);
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type);
 
     return $sent;
 }
 
 function wpinv_mail_get_from_address() {
-    $from_address = apply_filters( 'wpinv_mail_from_address', wpinv_get_option( 'email_from' ) );
-    return sanitize_email( $from_address );
+    $from_address = apply_filters('wpinv_mail_from_address', wpinv_get_option('email_from'));
+    return sanitize_email($from_address);
 }
 
 function wpinv_mail_get_from_name() {
-    $from_name = apply_filters( 'wpinv_mail_from_name', wpinv_get_option( 'email_from_name' ) );
-    return wp_specialchars_decode( esc_html( $from_name ), ENT_QUOTES );
+    $from_name = apply_filters('wpinv_mail_from_name', wpinv_get_option('email_from_name'));
+    return wp_specialchars_decode(esc_html($from_name), ENT_QUOTES);
 }
 
-function wpinv_mail_admin_bcc_active( $mail_type = '' ) {
-    $active = apply_filters( 'wpinv_mail_admin_bcc_active', wpinv_get_option( 'email_' . $mail_type . '_admin_bcc' ) );
-    return ( $active ? true : false );
+function wpinv_mail_admin_bcc_active($mail_type = '') {
+    $active = apply_filters('wpinv_mail_admin_bcc_active', wpinv_get_option('email_' . $mail_type . '_admin_bcc'));
+    return ($active ? true : false);
 }
     
-function wpinv_mail_get_content_type(  $content_type = 'text/html', $email_type = 'html' ) {
-    $email_type = apply_filters( 'wpinv_mail_content_type', $email_type );
+function wpinv_mail_get_content_type($content_type = 'text/html', $email_type = 'html') {
+    $email_type = apply_filters('wpinv_mail_content_type', $email_type);
 
-    switch ( $email_type ) {
+    switch ($email_type) {
         case 'html' :
             $content_type = 'text/html';
             break;
@@ -630,43 +630,43 @@ 
     return $content_type;
 }
     
-function wpinv_mail_send( $to, $subject, $message, $headers, $attachments, $cc = array() ) {
-    add_filter( 'wp_mail_from', 'wpinv_mail_get_from_address' );
-    add_filter( 'wp_mail_from_name', 'wpinv_mail_get_from_name' );
-    add_filter( 'wp_mail_content_type', 'wpinv_mail_get_content_type' );
+function wpinv_mail_send($to, $subject, $message, $headers, $attachments, $cc = array()) {
+    add_filter('wp_mail_from', 'wpinv_mail_get_from_address');
+    add_filter('wp_mail_from_name', 'wpinv_mail_get_from_name');
+    add_filter('wp_mail_content_type', 'wpinv_mail_get_content_type');
 
-    $message = wpinv_email_style_body( $message );
-    $message = apply_filters( 'wpinv_mail_content', $message );
+    $message = wpinv_email_style_body($message);
+    $message = apply_filters('wpinv_mail_content', $message);
 
-    if ( ! empty( $cc ) && is_array( $cc ) ) {
-        if ( ! is_array( $to ) ) {
-            $to = array( $to );
+    if (!empty($cc) && is_array($cc)) {
+        if (!is_array($to)) {
+            $to = array($to);
         }
 
-        $to = array_unique( array_merge( $to, $cc ) );
+        $to = array_unique(array_merge($to, $cc));
     }
 
-    $sent  = wp_mail( $to, $subject, $message, $headers, $attachments );
+    $sent = wp_mail($to, $subject, $message, $headers, $attachments);
 
-    if ( !$sent ) {
-        $log_message = wp_sprintf( __( "\nTime: %s\nTo: %s\nSubject: %s\n", 'invoicing' ), date_i18n( 'F j Y H:i:s', current_time( 'timestamp' ) ), ( is_array( $to ) ? implode( ', ', $to ) : $to ), $subject );
-        wpinv_error_log( $log_message, __( "Email from Invoicing plugin failed to send", 'invoicing' ), __FILE__, __LINE__ );
+    if (!$sent) {
+        $log_message = wp_sprintf(__("\nTime: %s\nTo: %s\nSubject: %s\n", 'invoicing'), date_i18n('F j Y H:i:s', current_time('timestamp')), (is_array($to) ? implode(', ', $to) : $to), $subject);
+        wpinv_error_log($log_message, __("Email from Invoicing plugin failed to send", 'invoicing'), __FILE__, __LINE__);
     }
 
-    remove_filter( 'wp_mail_from', 'wpinv_mail_get_from_address' );
-    remove_filter( 'wp_mail_from_name', 'wpinv_mail_get_from_name' );
-    remove_filter( 'wp_mail_content_type', 'wpinv_mail_get_content_type' );
+    remove_filter('wp_mail_from', 'wpinv_mail_get_from_address');
+    remove_filter('wp_mail_from_name', 'wpinv_mail_get_from_name');
+    remove_filter('wp_mail_content_type', 'wpinv_mail_get_content_type');
 
     return $sent;
 }
     
 function wpinv_get_emails() {
     $overdue_days_options       = array();
-    $overdue_days_options[0]    = __( 'On the Due Date', 'invoicing' );
-    $overdue_days_options[1]    = __( '1 day after Due Date', 'invoicing' );
+    $overdue_days_options[0]    = __('On the Due Date', 'invoicing');
+    $overdue_days_options[1]    = __('1 day after Due Date', 'invoicing');
 
-    for ( $i = 2; $i <= 10; $i++ ) {
-        $overdue_days_options[$i]   = wp_sprintf( __( '%d days after Due Date', 'invoicing' ), $i );
+    for ($i = 2; $i <= 10; $i++) {
+        $overdue_days_options[$i] = wp_sprintf(__('%d days after Due Date', 'invoicing'), $i);
     }
 
     // Default, built-in gateways
@@ -674,39 +674,39 @@ 
             'new_invoice' => array(
             'email_new_invoice_header' => array(
                 'id'   => 'email_new_invoice_header',
-                'name' => '<h3>' . __( 'New Invoice', 'invoicing' ) . '</h3>',
-                'desc' => __( 'New invoice emails are sent to admin when a new invoice is received.', 'invoicing' ),
+                'name' => '<h3>' . __('New Invoice', 'invoicing') . '</h3>',
+                'desc' => __('New invoice emails are sent to admin when a new invoice is received.', 'invoicing'),
                 'type' => 'header',
             ),
             'email_new_invoice_active' => array(
                 'id'   => 'email_new_invoice_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_new_invoice_subject' => array(
                 'id'   => 'email_new_invoice_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] New payment invoice ({invoice_number}) - {invoice_date}', 'invoicing' ),
+                'std'  => __('[{site_title}] New payment invoice ({invoice_number}) - {invoice_date}', 'invoicing'),
                 'size' => 'large'
             ),
             'email_new_invoice_heading' => array(
                 'id'   => 'email_new_invoice_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'New payment invoice', 'invoicing' ),
+                'std'  => __('New payment invoice', 'invoicing'),
                 'size' => 'large'
             ),
             'email_new_invoice_body' => array(
                 'id'   => 'email_new_invoice_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email (wildcards and HTML are allowed).', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email (wildcards and HTML are allowed).', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi Admin,</p><p>You have received payment invoice from {name}.</p>', 'invoicing' ),
+                'std'  => __('<p>Hi Admin,</p><p>You have received payment invoice from {name}.</p>', 'invoicing'),
                 'class' => 'large',
                 'size' => '10'
             ),
@@ -714,39 +714,39 @@ 
         'cancelled_invoice' => array(
             'email_cancelled_invoice_header' => array(
                 'id'   => 'email_cancelled_invoice_header',
-                'name' => '<h3>' . __( 'Cancelled Invoice', 'invoicing' ) . '</h3>',
-                'desc' => __( 'Cancelled invoice emails are sent to admin when invoices have been marked cancelled.', 'invoicing' ),
+                'name' => '<h3>' . __('Cancelled Invoice', 'invoicing') . '</h3>',
+                'desc' => __('Cancelled invoice emails are sent to admin when invoices have been marked cancelled.', 'invoicing'),
                 'type' => 'header',
             ),
             'email_cancelled_invoice_active' => array(
                 'id'   => 'email_cancelled_invoice_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_cancelled_invoice_subject' => array(
                 'id'   => 'email_cancelled_invoice_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] Cancelled invoice ({invoice_number})', 'invoicing' ),
+                'std'  => __('[{site_title}] Cancelled invoice ({invoice_number})', 'invoicing'),
                 'size' => 'large'
             ),
             'email_cancelled_invoice_heading' => array(
                 'id'   => 'email_cancelled_invoice_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'Cancelled invoice', 'invoicing' ),
+                'std'  => __('Cancelled invoice', 'invoicing'),
                 'size' => 'large'
             ),
             'email_cancelled_invoice_body' => array(
                 'id'   => 'email_cancelled_invoice_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email (wildcards and HTML are allowed).', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email (wildcards and HTML are allowed).', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi Admin,</p><p>The invoice #{invoice_number} from {site_title} has been cancelled.</p>', 'invoicing' ),
+                'std'  => __('<p>Hi Admin,</p><p>The invoice #{invoice_number} from {site_title} has been cancelled.</p>', 'invoicing'),
                 'class' => 'large',
                 'size' => '10'
             ),
@@ -754,39 +754,39 @@ 
         'failed_invoice' => array(
             'email_failed_invoice_header' => array(
                 'id'   => 'email_failed_invoice_header',
-                'name' => '<h3>' . __( 'Failed Invoice', 'invoicing' ) . '</h3>',
-                'desc' => __( 'Failed invoice emails are sent to admin when invoices have been marked failed (if they were previously processing or on-hold).', 'invoicing' ),
+                'name' => '<h3>' . __('Failed Invoice', 'invoicing') . '</h3>',
+                'desc' => __('Failed invoice emails are sent to admin when invoices have been marked failed (if they were previously processing or on-hold).', 'invoicing'),
                 'type' => 'header',
             ),
             'email_failed_invoice_active' => array(
                 'id'   => 'email_failed_invoice_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_failed_invoice_subject' => array(
                 'id'   => 'email_failed_invoice_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] Failed invoice ({invoice_number})', 'invoicing' ),
+                'std'  => __('[{site_title}] Failed invoice ({invoice_number})', 'invoicing'),
                 'size' => 'large'
             ),
             'email_failed_invoice_heading' => array(
                 'id'   => 'email_failed_invoice_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'Failed invoice', 'invoicing' ),
+                'std'  => __('Failed invoice', 'invoicing'),
                 'size' => 'large'
             ),
             'email_failed_invoice_body' => array(
                 'id'   => 'email_failed_invoice_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email (wildcards and HTML are allowed).', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email (wildcards and HTML are allowed).', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi Admin,</p><p>Payment for invoice #{invoice_number} from {site_title} has been failed.</p>', 'invoicing' ),
+                'std'  => __('<p>Hi Admin,</p><p>Payment for invoice #{invoice_number} from {site_title} has been failed.</p>', 'invoicing'),
                 'class' => 'large',
                 'size' => '10'
             ),
@@ -794,46 +794,46 @@ 
         'onhold_invoice' => array(
             'email_onhold_invoice_header' => array(
                 'id'   => 'email_onhold_invoice_header',
-                'name' => '<h3>' . __( 'On Hold Invoice', 'invoicing' ) . '</h3>',
-                'desc' => __( 'This is an invoice notification sent to users containing invoice details after an invoice is placed on-hold.', 'invoicing' ),
+                'name' => '<h3>' . __('On Hold Invoice', 'invoicing') . '</h3>',
+                'desc' => __('This is an invoice notification sent to users containing invoice details after an invoice is placed on-hold.', 'invoicing'),
                 'type' => 'header',
             ),
             'email_onhold_invoice_active' => array(
                 'id'   => 'email_onhold_invoice_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_onhold_invoice_subject' => array(
                 'id'   => 'email_onhold_invoice_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] Your invoice receipt from {invoice_date}', 'invoicing' ),
+                'std'  => __('[{site_title}] Your invoice receipt from {invoice_date}', 'invoicing'),
                 'size' => 'large'
             ),
             'email_onhold_invoice_heading' => array(
                 'id'   => 'email_onhold_invoice_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'Thank you for your invoice', 'invoicing' ),
+                'std'  => __('Thank you for your invoice', 'invoicing'),
                 'size' => 'large'
             ),
             'email_onhold_invoice_admin_bcc' => array(
                 'id'   => 'email_onhold_invoice_admin_bcc',
-                'name' => __( 'Enable Admin BCC', 'invoicing' ),
-                'desc' => __( 'Check if you want to send this notification email to site Admin.', 'invoicing' ),
+                'name' => __('Enable Admin BCC', 'invoicing'),
+                'desc' => __('Check if you want to send this notification email to site Admin.', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_onhold_invoice_body' => array(
                 'id'   => 'email_onhold_invoice_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email (wildcards and HTML are allowed).', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email (wildcards and HTML are allowed).', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi {name},</p><p>Your invoice is on-hold until we confirm your payment has been received.</p>', 'invoicing' ),
+                'std'  => __('<p>Hi {name},</p><p>Your invoice is on-hold until we confirm your payment has been received.</p>', 'invoicing'),
                 'class' => 'large',
                 'size' => '10'
             ),
@@ -841,46 +841,46 @@ 
         'processing_invoice' => array(
             'email_processing_invoice_header' => array(
                 'id'   => 'email_processing_invoice_header',
-                'name' => '<h3>' . __( 'Processing Invoice', 'invoicing' ) . '</h3>',
-                'desc' => __( 'This is an invoice notification sent to users containing invoice details after payment.', 'invoicing' ),
+                'name' => '<h3>' . __('Processing Invoice', 'invoicing') . '</h3>',
+                'desc' => __('This is an invoice notification sent to users containing invoice details after payment.', 'invoicing'),
                 'type' => 'header',
             ),
             'email_processing_invoice_active' => array(
                 'id'   => 'email_processing_invoice_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_processing_invoice_subject' => array(
                 'id'   => 'email_processing_invoice_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] Your invoice receipt from {invoice_date}', 'invoicing' ),
+                'std'  => __('[{site_title}] Your invoice receipt from {invoice_date}', 'invoicing'),
                 'size' => 'large'
             ),
             'email_processing_invoice_heading' => array(
                 'id'   => 'email_processing_invoice_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'Thank you for your invoice', 'invoicing' ),
+                'std'  => __('Thank you for your invoice', 'invoicing'),
                 'size' => 'large'
             ),
             'email_processing_invoice_admin_bcc' => array(
                 'id'   => 'email_processing_invoice_admin_bcc',
-                'name' => __( 'Enable Admin BCC', 'invoicing' ),
-                'desc' => __( 'Check if you want to send this notification email to site Admin.', 'invoicing' ),
+                'name' => __('Enable Admin BCC', 'invoicing'),
+                'desc' => __('Check if you want to send this notification email to site Admin.', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_processing_invoice_body' => array(
                 'id'   => 'email_processing_invoice_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email (wildcards and HTML are allowed).', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email (wildcards and HTML are allowed).', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi {name},</p><p>Your invoice has been received at {site_title} and is now being processed.</p>', 'invoicing' ),
+                'std'  => __('<p>Hi {name},</p><p>Your invoice has been received at {site_title} and is now being processed.</p>', 'invoicing'),
                 'class' => 'large',
                 'size' => '10'
             ),
@@ -888,52 +888,52 @@ 
         'completed_invoice' => array(
             'email_completed_invoice_header' => array(
                 'id'   => 'email_completed_invoice_header',
-                'name' => '<h3>' . __( 'Paid Invoice', 'invoicing' ) . '</h3>',
-                'desc' => __( 'Invoice paid emails are sent to users when their invoices are marked paid and usually indicate that their payment has been done.', 'invoicing' ),
+                'name' => '<h3>' . __('Paid Invoice', 'invoicing') . '</h3>',
+                'desc' => __('Invoice paid emails are sent to users when their invoices are marked paid and usually indicate that their payment has been done.', 'invoicing'),
                 'type' => 'header',
             ),
             'email_completed_invoice_active' => array(
                 'id'   => 'email_completed_invoice_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_completed_invoice_renewal_active' => array(
                 'id'   => 'email_completed_invoice_renewal_active',
-                'name' => __( 'Enable renewal notification', 'invoicing' ),
-                'desc' => __( 'Enable renewal invoice email notification. This notification will be sent on renewal.', 'invoicing' ),
+                'name' => __('Enable renewal notification', 'invoicing'),
+                'desc' => __('Enable renewal invoice email notification. This notification will be sent on renewal.', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 0
             ),
             'email_completed_invoice_subject' => array(
                 'id'   => 'email_completed_invoice_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] Your invoice from {invoice_date} has been paid', 'invoicing' ),
+                'std'  => __('[{site_title}] Your invoice from {invoice_date} has been paid', 'invoicing'),
                 'size' => 'large'
             ),
             'email_completed_invoice_heading' => array(
                 'id'   => 'email_completed_invoice_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'Your invoice has been paid', 'invoicing' ),
+                'std'  => __('Your invoice has been paid', 'invoicing'),
                 'size' => 'large'
             ),
             'email_completed_invoice_admin_bcc' => array(
                 'id'   => 'email_completed_invoice_admin_bcc',
-                'name' => __( 'Enable Admin BCC', 'invoicing' ),
-                'desc' => __( 'Check if you want to send this notification email to site Admin.', 'invoicing' ),
+                'name' => __('Enable Admin BCC', 'invoicing'),
+                'desc' => __('Check if you want to send this notification email to site Admin.', 'invoicing'),
                 'type' => 'checkbox',
             ),
             'email_completed_invoice_body' => array(
                 'id'   => 'email_completed_invoice_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email (wildcards and HTML are allowed).', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email (wildcards and HTML are allowed).', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi {name},</p><p>Your recent invoice on {site_title} has been paid.</p>', 'invoicing' ),
+                'std'  => __('<p>Hi {name},</p><p>Your recent invoice on {site_title} has been paid.</p>', 'invoicing'),
                 'class' => 'large',
                 'size' => '10'
             ),
@@ -942,46 +942,46 @@ 
         'refunded_invoice' => array(
             'email_refunded_invoice_header' => array(
                 'id'   => 'email_refunded_invoice_header',
-                'name' => '<h3>' . __( 'Refunded Invoice', 'invoicing' ) . '</h3>',
-                'desc' => __( 'Invoice refunded emails are sent to users when their invoices are marked refunded.', 'invoicing' ),
+                'name' => '<h3>' . __('Refunded Invoice', 'invoicing') . '</h3>',
+                'desc' => __('Invoice refunded emails are sent to users when their invoices are marked refunded.', 'invoicing'),
                 'type' => 'header',
             ),
             'email_refunded_invoice_active' => array(
                 'id'   => 'email_refunded_invoice_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_refunded_invoice_subject' => array(
                 'id'   => 'email_refunded_invoice_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] Your invoice from {invoice_date} has been refunded', 'invoicing' ),
+                'std'  => __('[{site_title}] Your invoice from {invoice_date} has been refunded', 'invoicing'),
                 'size' => 'large'
             ),
             'email_refunded_invoice_heading' => array(
                 'id'   => 'email_refunded_invoice_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'Your invoice has been refunded', 'invoicing' ),
+                'std'  => __('Your invoice has been refunded', 'invoicing'),
                 'size' => 'large'
             ),
             'email_refunded_invoice_admin_bcc' => array(
                 'id'   => 'email_refunded_invoice_admin_bcc',
-                'name' => __( 'Enable Admin BCC', 'invoicing' ),
-                'desc' => __( 'Check if you want to send this notification email to site Admin.', 'invoicing' ),
+                'name' => __('Enable Admin BCC', 'invoicing'),
+                'desc' => __('Check if you want to send this notification email to site Admin.', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_refunded_invoice_body' => array(
                 'id'   => 'email_refunded_invoice_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email (wildcards and HTML are allowed).', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email (wildcards and HTML are allowed).', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi {name},</p><p>Your invoice on {site_title} has been refunded.</p>', 'invoicing' ),
+                'std'  => __('<p>Hi {name},</p><p>Your invoice on {site_title} has been refunded.</p>', 'invoicing'),
                 'class' => 'large',
                 'size' => '10'
             ),
@@ -989,46 +989,46 @@ 
         'user_invoice' => array(
             'email_user_invoice_header' => array(
                 'id'   => 'email_user_invoice_header',
-                'name' => '<h3>' . __( 'Customer Invoice', 'invoicing' ) . '</h3>',
-                'desc' => __( 'Customer invoice emails can be sent to customers containing their invoice information and payment links.', 'invoicing' ),
+                'name' => '<h3>' . __('Customer Invoice', 'invoicing') . '</h3>',
+                'desc' => __('Customer invoice emails can be sent to customers containing their invoice information and payment links.', 'invoicing'),
                 'type' => 'header',
             ),
             'email_user_invoice_active' => array(
                 'id'   => 'email_user_invoice_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_user_invoice_subject' => array(
                 'id'   => 'email_user_invoice_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] Your invoice from {invoice_date}', 'invoicing' ),
+                'std'  => __('[{site_title}] Your invoice from {invoice_date}', 'invoicing'),
                 'size' => 'large'
             ),
             'email_user_invoice_heading' => array(
                 'id'   => 'email_user_invoice_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'Your invoice {invoice_number} details', 'invoicing' ),
+                'std'  => __('Your invoice {invoice_number} details', 'invoicing'),
                 'size' => 'large'
             ),
             'email_user_invoice_admin_bcc' => array(
                 'id'   => 'email_user_invoice_admin_bcc',
-                'name' => __( 'Enable Admin BCC', 'invoicing' ),
-                'desc' => __( 'Check if you want to send this notification email to site Admin.', 'invoicing' ),
+                'name' => __('Enable Admin BCC', 'invoicing'),
+                'desc' => __('Check if you want to send this notification email to site Admin.', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_user_invoice_body' => array(
                 'id'   => 'email_user_invoice_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email (wildcards and HTML are allowed).', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email (wildcards and HTML are allowed).', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi {name},</p><p>An invoice has been created for you on {site_title}. To view / pay for this invoice please use the following link: <a class="btn btn-success" href="{invoice_link}">View / Pay</a></p>', 'invoicing' ),
+                'std'  => __('<p>Hi {name},</p><p>An invoice has been created for you on {site_title}. To view / pay for this invoice please use the following link: <a class="btn btn-success" href="{invoice_link}">View / Pay</a></p>', 'invoicing'),
                 'class' => 'large',
                 'size' => '10'
             ),
@@ -1036,39 +1036,39 @@ 
         'user_note' => array(
             'email_user_note_header' => array(
                 'id'   => 'email_user_note_header',
-                'name' => '<h3>' . __( 'Customer Note', 'invoicing' ) . '</h3>',
-                'desc' => __( 'Customer note emails are sent when you add a note to an invoice/quote.', 'invoicing' ),
+                'name' => '<h3>' . __('Customer Note', 'invoicing') . '</h3>',
+                'desc' => __('Customer note emails are sent when you add a note to an invoice/quote.', 'invoicing'),
                 'type' => 'header',
             ),
             'email_user_note_active' => array(
                 'id'   => 'email_user_note_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_user_note_subject' => array(
                 'id'   => 'email_user_note_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] Note added to your {invoice_label} #{invoice_number} from {invoice_date}', 'invoicing' ),
+                'std'  => __('[{site_title}] Note added to your {invoice_label} #{invoice_number} from {invoice_date}', 'invoicing'),
                 'size' => 'large'
             ),
             'email_user_note_heading' => array(
                 'id'   => 'email_user_note_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'A note has been added to your {invoice_label}', 'invoicing' ),
+                'std'  => __('A note has been added to your {invoice_label}', 'invoicing'),
                 'size' => 'large'
             ),
             'email_user_note_body' => array(
                 'id'   => 'email_user_note_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email (wildcards and HTML are allowed).', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email (wildcards and HTML are allowed).', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi {name},</p><p>Following note has been added to your {invoice_label}:</p><blockquote class="wpinv-note">{customer_note}</blockquote>', 'invoicing' ),
+                'std'  => __('<p>Hi {name},</p><p>Following note has been added to your {invoice_label}:</p><blockquote class="wpinv-note">{customer_note}</blockquote>', 'invoicing'),
                 'class' => 'large',
                 'size' => '10'
             ),
@@ -1077,54 +1077,54 @@ 
         'pre_payment' => array(
             'email_pre_payment_header' => array(
                 'id'   => 'email_pre_payment_header',
-                'name' => '<h3>' . __( 'Renewal Reminder', 'invoicing' ) . '</h3>',
-                'desc' => __( 'Renewal reminder emails are sent to user automatically.', 'invoicing' ),
+                'name' => '<h3>' . __('Renewal Reminder', 'invoicing') . '</h3>',
+                'desc' => __('Renewal reminder emails are sent to user automatically.', 'invoicing'),
                 'type' => 'header',
             ),
             'email_pre_payment_active' => array(
                 'id'   => 'email_pre_payment_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_pre_payment_reminder_days' => array(
                 'id'            => 'email_pre_payment_reminder_days',
-                'name'          => __( 'When to Send', 'invoicing' ),
-                'desc'          => __( 'Enter a comma separated list of days before renewal when this email should be sent.', 'invoicing' ),
+                'name'          => __('When to Send', 'invoicing'),
+                'desc'          => __('Enter a comma separated list of days before renewal when this email should be sent.', 'invoicing'),
                 'default'       => '',
                 'type'          => 'text',
                 'std'           => '1,5,10',
             ),
             'email_pre_payment_subject' => array(
                 'id'   => 'email_pre_payment_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] Renewal Reminder', 'invoicing' ),
+                'std'  => __('[{site_title}] Renewal Reminder', 'invoicing'),
                 'size' => 'large'
             ),
             'email_pre_payment_heading' => array(
                 'id'   => 'email_pre_payment_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'Upcoming renewal reminder', 'invoicing' ),
+                'std'  => __('Upcoming renewal reminder', 'invoicing'),
                 'size' => 'large'
             ),
             'email_pre_payment_admin_bcc' => array(
                 'id'   => 'email_pre_payment_admin_bcc',
-                'name' => __( 'Enable Admin BCC', 'invoicing' ),
-                'desc' => __( 'Check if you want to send this notification email to site Admin.', 'invoicing' ),
+                'name' => __('Enable Admin BCC', 'invoicing'),
+                'desc' => __('Check if you want to send this notification email to site Admin.', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_pre_payment_body' => array(
                 'id'   => 'email_pre_payment_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email.', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email.', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi {full_name},</p><p>Your subscription for invoice <a href="{invoice_link}">#{invoice_number}</a> will renew on {subscription_renewal_date}.</p>', 'invoicing' ),
+                'std'  => __('<p>Hi {full_name},</p><p>Your subscription for invoice <a href="{invoice_link}">#{invoice_number}</a> will renew on {subscription_renewal_date}.</p>', 'invoicing'),
                 'class' => 'large',
                 'size'  => 10,
             ),
@@ -1133,264 +1133,264 @@ 
         'overdue' => array(
             'email_overdue_header' => array(
                 'id'   => 'email_overdue_header',
-                'name' => '<h3>' . __( 'Payment Reminder', 'invoicing' ) . '</h3>',
-                'desc' => __( 'Payment reminder emails are sent to user automatically.', 'invoicing' ),
+                'name' => '<h3>' . __('Payment Reminder', 'invoicing') . '</h3>',
+                'desc' => __('Payment reminder emails are sent to user automatically.', 'invoicing'),
                 'type' => 'header',
             ),
             'email_overdue_active' => array(
                 'id'   => 'email_overdue_active',
-                'name' => __( 'Enable/Disable', 'invoicing' ),
-                'desc' => __( 'Enable this email notification', 'invoicing' ),
+                'name' => __('Enable/Disable', 'invoicing'),
+                'desc' => __('Enable this email notification', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_due_reminder_days' => array(
                 'id'        => 'email_due_reminder_days',
-                'name'      => __( 'When to Send', 'invoicing' ),
-                'desc'      => __( 'Check when you would like payment reminders sent out.', 'invoicing' ),
+                'name'      => __('When to Send', 'invoicing'),
+                'desc'      => __('Check when you would like payment reminders sent out.', 'invoicing'),
                 'default'   => '',
                 'type'      => 'multicheck',
                 'options'   => $overdue_days_options,
             ),
             'email_overdue_subject' => array(
                 'id'   => 'email_overdue_subject',
-                'name' => __( 'Subject', 'invoicing' ),
-                'desc' => __( 'Enter the subject line for the invoice receipt email.', 'invoicing' ),
+                'name' => __('Subject', 'invoicing'),
+                'desc' => __('Enter the subject line for the invoice receipt email.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( '[{site_title}] Payment Reminder', 'invoicing' ),
+                'std'  => __('[{site_title}] Payment Reminder', 'invoicing'),
                 'size' => 'large'
             ),
             'email_overdue_heading' => array(
                 'id'   => 'email_overdue_heading',
-                'name' => __( 'Email Heading', 'invoicing' ),
-                'desc' => __( 'Enter the main heading contained within the email notification.', 'invoicing' ),
+                'name' => __('Email Heading', 'invoicing'),
+                'desc' => __('Enter the main heading contained within the email notification.', 'invoicing'),
                 'type' => 'text',
-                'std'  => __( 'Payment reminder for your invoice', 'invoicing' ),
+                'std'  => __('Payment reminder for your invoice', 'invoicing'),
                 'size' => 'large'
             ),
             'email_overdue_admin_bcc' => array(
                 'id'   => 'email_overdue_admin_bcc',
-                'name' => __( 'Enable Admin BCC', 'invoicing' ),
-                'desc' => __( 'Check if you want to send this notification email to site Admin.', 'invoicing' ),
+                'name' => __('Enable Admin BCC', 'invoicing'),
+                'desc' => __('Check if you want to send this notification email to site Admin.', 'invoicing'),
                 'type' => 'checkbox',
                 'std'  => 1
             ),
             'email_overdue_body' => array(
                 'id'   => 'email_overdue_body',
-                'name' => __( 'Email Content', 'invoicing' ),
-                'desc' => __( 'The content of the email.', 'invoicing' ),
+                'name' => __('Email Content', 'invoicing'),
+                'desc' => __('The content of the email.', 'invoicing'),
                 'type' => 'rich_editor',
-                'std'  => __( '<p>Hi {full_name},</p><p>This is just a friendly reminder that your invoice <a href="{invoice_link}">#{invoice_number}</a> {is_was} due on {invoice_due_date}.</p><p>The total of this invoice is {invoice_total}</p><p>To view / pay now for this invoice please use the following link: <a class="btn btn-success" href="{invoice_link}">View / Pay</a></p>', 'invoicing' ),
+                'std'  => __('<p>Hi {full_name},</p><p>This is just a friendly reminder that your invoice <a href="{invoice_link}">#{invoice_number}</a> {is_was} due on {invoice_due_date}.</p><p>The total of this invoice is {invoice_total}</p><p>To view / pay now for this invoice please use the following link: <a class="btn btn-success" href="{invoice_link}">View / Pay</a></p>', 'invoicing'),
                 'class' => 'large',
                 'size'  => 10,
             ),
         ),
     );
 
-    return apply_filters( 'wpinv_get_emails', $emails );
+    return apply_filters('wpinv_get_emails', $emails);
 }
 
-function wpinv_settings_emails( $settings = array() ) {
+function wpinv_settings_emails($settings = array()) {
     $emails = wpinv_get_emails();
 
-    if ( !empty( $emails ) ) {
-        foreach ( $emails as $key => $email ) {
+    if (!empty($emails)) {
+        foreach ($emails as $key => $email) {
             $settings[$key] = $email;
         }
     }
 
-    return apply_filters( 'wpinv_settings_get_emails', $settings );
+    return apply_filters('wpinv_settings_get_emails', $settings);
 }
-add_filter( 'wpinv_settings_emails', 'wpinv_settings_emails', 10, 1 );
+add_filter('wpinv_settings_emails', 'wpinv_settings_emails', 10, 1);
 
-function wpinv_settings_sections_emails( $settings ) {
+function wpinv_settings_sections_emails($settings) {
     $emails = wpinv_get_emails();
 
     if (!empty($emails)) {
-        foreach  ($emails as $key => $email) {
-            $settings[$key] = !empty( $email['email_' . $key . '_header']['name'] ) ? strip_tags( $email['email_' . $key . '_header']['name'] ) : $key;
+        foreach ($emails as $key => $email) {
+            $settings[$key] = !empty($email['email_' . $key . '_header']['name']) ? strip_tags($email['email_' . $key . '_header']['name']) : $key;
         }
     }
 
     return $settings;    
 }
-add_filter( 'wpinv_settings_sections_emails', 'wpinv_settings_sections_emails', 10, 1 );
+add_filter('wpinv_settings_sections_emails', 'wpinv_settings_sections_emails', 10, 1);
 
-function wpinv_email_is_enabled( $email_type ) {
+function wpinv_email_is_enabled($email_type) {
     $emails = wpinv_get_emails();
-    $enabled = isset( $emails[$email_type] ) && wpinv_get_option( 'email_'. $email_type . '_active', 0 ) ? true : false;
+    $enabled = isset($emails[$email_type]) && wpinv_get_option('email_' . $email_type . '_active', 0) ? true : false;
 
-    return apply_filters( 'wpinv_email_is_enabled', $enabled, $email_type );
+    return apply_filters('wpinv_email_is_enabled', $enabled, $email_type);
 }
 
-function wpinv_email_get_recipient( $email_type = '', $invoice_id = 0, $invoice = array() ) {
-    switch ( $email_type ) {
+function wpinv_email_get_recipient($email_type = '', $invoice_id = 0, $invoice = array()) {
+    switch ($email_type) {
         case 'new_invoice':
         case 'cancelled_invoice':
         case 'failed_invoice':
             $recipient  = wpinv_get_admin_email();
         break;
         default:
-            $invoice    = !empty( $invoice ) && is_object( $invoice ) ? $invoice : ( $invoice_id > 0 ? wpinv_get_invoice( $invoice_id ) : NULL );
-            $recipient  = !empty( $invoice ) ? $invoice->get_email() : '';
+            $invoice    = !empty($invoice) && is_object($invoice) ? $invoice : ($invoice_id > 0 ? wpinv_get_invoice($invoice_id) : NULL);
+            $recipient  = !empty($invoice) ? $invoice->get_email() : '';
         break;
     }
 
-    return apply_filters( 'wpinv_email_recipient', $recipient, $email_type, $invoice_id, $invoice );
+    return apply_filters('wpinv_email_recipient', $recipient, $email_type, $invoice_id, $invoice);
 }
 
 /**
  * Returns invoice CC recipients
  */
-function wpinv_email_get_cc_recipients( $email_type = '', $invoice_id = 0, $invoice = array() ) {
-    switch ( $email_type ) {
+function wpinv_email_get_cc_recipients($email_type = '', $invoice_id = 0, $invoice = array()) {
+    switch ($email_type) {
         case 'new_invoice':
         case 'cancelled_invoice':
         case 'failed_invoice':
             return array();
         break;
         default:
-            $invoice    = !empty( $invoice ) && is_object( $invoice ) ? $invoice : ( $invoice_id > 0 ? wpinv_get_invoice( $invoice_id ) : NULL );
-            $recipient  = empty( $invoice ) ? '' : get_post_meta( $invoice->ID, 'wpinv_email_cc', true );
-            if ( empty( $recipient ) ) {
+            $invoice    = !empty($invoice) && is_object($invoice) ? $invoice : ($invoice_id > 0 ? wpinv_get_invoice($invoice_id) : NULL);
+            $recipient  = empty($invoice) ? '' : get_post_meta($invoice->ID, 'wpinv_email_cc', true);
+            if (empty($recipient)) {
                 return array();
             }
-            return  array_filter( array_map( 'trim', explode( ',', $recipient ) ) );
+            return  array_filter(array_map('trim', explode(',', $recipient)));
         break;
     }
 
 }
 
-function wpinv_email_get_subject( $email_type = '', $invoice_id = 0, $invoice = array() ) {
-    $subject    = wpinv_get_option( 'email_' . $email_type . '_subject' );
-    $subject    = __( $subject, 'invoicing' );
+function wpinv_email_get_subject($email_type = '', $invoice_id = 0, $invoice = array()) {
+    $subject    = wpinv_get_option('email_' . $email_type . '_subject');
+    $subject    = __($subject, 'invoicing');
 
-    $subject    = wpinv_email_format_text( $subject, $invoice );
+    $subject    = wpinv_email_format_text($subject, $invoice);
 
-    return apply_filters( 'wpinv_email_subject', $subject, $email_type, $invoice_id, $invoice );
+    return apply_filters('wpinv_email_subject', $subject, $email_type, $invoice_id, $invoice);
 }
 
-function wpinv_email_get_heading( $email_type = '', $invoice_id = 0, $invoice = array() ) {
-    $email_heading = wpinv_get_option( 'email_' . $email_type . '_heading' );
-    $email_heading = __( $email_heading, 'invoicing' );
+function wpinv_email_get_heading($email_type = '', $invoice_id = 0, $invoice = array()) {
+    $email_heading = wpinv_get_option('email_' . $email_type . '_heading');
+    $email_heading = __($email_heading, 'invoicing');
 
-    $email_heading = wpinv_email_format_text( $email_heading, $invoice );
+    $email_heading = wpinv_email_format_text($email_heading, $invoice);
 
-    return apply_filters( 'wpinv_email_heading', $email_heading, $email_type, $invoice_id, $invoice );
+    return apply_filters('wpinv_email_heading', $email_heading, $email_type, $invoice_id, $invoice);
 }
 
-function wpinv_email_get_content( $email_type = '', $invoice_id = 0, $invoice = array() ) {
-    $content    = wpinv_get_option( 'email_' . $email_type . '_body' );
-    $content    = __( $content, 'invoicing' );
+function wpinv_email_get_content($email_type = '', $invoice_id = 0, $invoice = array()) {
+    $content    = wpinv_get_option('email_' . $email_type . '_body');
+    $content    = __($content, 'invoicing');
 
-    $content    = wpinv_email_format_text( $content, $invoice );
+    $content    = wpinv_email_format_text($content, $invoice);
 
-    return apply_filters( 'wpinv_email_content', $content, $email_type, $invoice_id, $invoice );
+    return apply_filters('wpinv_email_content', $content, $email_type, $invoice_id, $invoice);
 }
 
-function wpinv_email_get_headers( $email_type = '', $invoice_id = 0, $invoice = array() ) {
+function wpinv_email_get_headers($email_type = '', $invoice_id = 0, $invoice = array()) {
     $from_name = wpinv_mail_get_from_address();
     $from_email = wpinv_mail_get_from_address();
     
-    $invoice    = !empty( $invoice ) && is_object( $invoice ) ? $invoice : ( $invoice_id > 0 ? wpinv_get_invoice( $invoice_id ) : NULL );
+    $invoice    = !empty($invoice) && is_object($invoice) ? $invoice : ($invoice_id > 0 ? wpinv_get_invoice($invoice_id) : NULL);
     
-    $headers    = "From: " . stripslashes_deep( html_entity_decode( $from_name, ENT_COMPAT, 'UTF-8' ) ) . " <$from_email>\r\n";
-    $headers    .= "Reply-To: ". $from_email . "\r\n";
+    $headers    = "From: " . stripslashes_deep(html_entity_decode($from_name, ENT_COMPAT, 'UTF-8')) . " <$from_email>\r\n";
+    $headers    .= "Reply-To: " . $from_email . "\r\n";
     $headers    .= "Content-Type: " . wpinv_mail_get_content_type() . "\r\n";
     
-    return apply_filters( 'wpinv_email_headers', $headers, $email_type, $invoice_id, $invoice );
+    return apply_filters('wpinv_email_headers', $headers, $email_type, $invoice_id, $invoice);
 }
 
-function wpinv_email_get_attachments( $email_type = '', $invoice_id = 0, $invoice = array() ) {
+function wpinv_email_get_attachments($email_type = '', $invoice_id = 0, $invoice = array()) {
     $attachments = array();
     
-    return apply_filters( 'wpinv_email_attachments', $attachments, $email_type, $invoice_id, $invoice );
+    return apply_filters('wpinv_email_attachments', $attachments, $email_type, $invoice_id, $invoice);
 }
 
 /**
  * Searches for and replaces certain placeholders in an email.
  */
-function wpinv_email_format_text( $content, $invoice ) {
+function wpinv_email_format_text($content, $invoice) {
 
     $replace_array = array(
         '{site_title}'      => wpinv_get_blogname(),
-        '{date}'            => date_i18n( get_option( 'date_format' ), (int) current_time( 'timestamp' ) ),
+        '{date}'            => date_i18n(get_option('date_format'), (int) current_time('timestamp')),
     );
 
-    $invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice($invoice);
 
-    if ( $invoice->get_id() ) {
+    if ($invoice->get_id()) {
 
         $replace_array = array_merge(
             $replace_array, 
             array(
-                '{name}'            => sanitize_text_field( $invoice->get_user_full_name() ),
-                '{full_name}'       => sanitize_text_field( $invoice->get_user_full_name() ),
-                '{first_name}'      => sanitize_text_field( $invoice->get_first_name() ),
-                '{last_name}'       => sanitize_text_field( $invoice->get_last_name() ),
-                '{email}'           => sanitize_email( $invoice->get_email() ),
-                '{invoice_number}'  => sanitize_text_field( $invoice->get_number() ),
-                '{invoice_total}'   => wpinv_price( wpinv_format_amount( $invoice->get_total( true ) ) ),
-                '{invoice_link}'    => esc_url( $invoice->get_view_url() ),
-                '{invoice_pay_link}'=> esc_url( $invoice->get_checkout_payment_url() ),
-                '{invoice_date}'    => date( get_option( 'date_format' ), strtotime( $invoice->get_date_created(), current_time( 'timestamp' ) ) ),
-                '{invoice_due_date}'=> date( get_option( 'date_format' ), strtotime( $invoice->get_due_date(), current_time( 'timestamp' ) ) ),
-                '{invoice_quote}'   => sanitize_text_field( $invoice->get_type() ),
-                '{invoice_label}'   => sanitize_text_field( ucfirst( $invoice->get_type() ) ),
-                '{is_was}'          => strtotime( $invoice->get_due_date() ) < current_time( 'timestamp' ) ? __( 'was', 'invoicing' ) : __( 'is', 'invoicing' ),
+                '{name}'            => sanitize_text_field($invoice->get_user_full_name()),
+                '{full_name}'       => sanitize_text_field($invoice->get_user_full_name()),
+                '{first_name}'      => sanitize_text_field($invoice->get_first_name()),
+                '{last_name}'       => sanitize_text_field($invoice->get_last_name()),
+                '{email}'           => sanitize_email($invoice->get_email()),
+                '{invoice_number}'  => sanitize_text_field($invoice->get_number()),
+                '{invoice_total}'   => wpinv_price(wpinv_format_amount($invoice->get_total(true))),
+                '{invoice_link}'    => esc_url($invoice->get_view_url()),
+                '{invoice_pay_link}'=> esc_url($invoice->get_checkout_payment_url()),
+                '{invoice_date}'    => date(get_option('date_format'), strtotime($invoice->get_date_created(), current_time('timestamp'))),
+                '{invoice_due_date}'=> date(get_option('date_format'), strtotime($invoice->get_due_date(), current_time('timestamp'))),
+                '{invoice_quote}'   => sanitize_text_field($invoice->get_type()),
+                '{invoice_label}'   => sanitize_text_field(ucfirst($invoice->get_type())),
+                '{is_was}'          => strtotime($invoice->get_due_date()) < current_time('timestamp') ? __('was', 'invoicing') : __('is', 'invoicing'),
             )
         );
 
     }
 
     // Let third party plugins filter the arra.
-    $replace_array = apply_filters( 'wpinv_email_format_text', $replace_array, $content, $invoice );
+    $replace_array = apply_filters('wpinv_email_format_text', $replace_array, $content, $invoice);
 
-    foreach ( $replace_array as $key => $value ) {
-        $content = str_replace( $key, $value, $content );
+    foreach ($replace_array as $key => $value) {
+        $content = str_replace($key, $value, $content);
     }
 
-    return apply_filters( 'wpinv_email_content_replace', $content );
+    return apply_filters('wpinv_email_content_replace', $content);
 }
 
-function wpinv_email_style_body( $content ) {
+function wpinv_email_style_body($content) {
     // make sure we only inline CSS for html emails
-    if ( in_array( wpinv_mail_get_content_type(), array( 'text/html', 'multipart/alternative' ) ) && class_exists( 'DOMDocument' ) ) {
+    if (in_array(wpinv_mail_get_content_type(), array('text/html', 'multipart/alternative')) && class_exists('DOMDocument')) {
         ob_start();
-        wpinv_get_template( 'emails/wpinv-email-styles.php' );
-        $css = apply_filters( 'wpinv_email_styles', ob_get_clean() );
+        wpinv_get_template('emails/wpinv-email-styles.php');
+        $css = apply_filters('wpinv_email_styles', ob_get_clean());
 
         // apply CSS styles inline for picky email clients
         try {
-            $emogrifier = new Emogrifier( $content, $css );
+            $emogrifier = new Emogrifier($content, $css);
             $content    = $emogrifier->emogrify();
-        } catch ( Exception $e ) {
-            wpinv_error_log( $e->getMessage(), 'emogrifier' );
+        } catch (Exception $e) {
+            wpinv_error_log($e->getMessage(), 'emogrifier');
         }
     }
     return $content;
 }
 
-function wpinv_email_header( $email_heading = '', $invoice = array(), $email_type = '', $sent_to_admin = false ) {
-    wpinv_get_template( 'emails/wpinv-email-header.php', array( 'email_heading' => $email_heading, 'invoice' => $invoice, 'email_type' => $email_type, 'sent_to_admin' => $sent_to_admin ) );
+function wpinv_email_header($email_heading = '', $invoice = array(), $email_type = '', $sent_to_admin = false) {
+    wpinv_get_template('emails/wpinv-email-header.php', array('email_heading' => $email_heading, 'invoice' => $invoice, 'email_type' => $email_type, 'sent_to_admin' => $sent_to_admin));
 }
 
 /**
  * Get the email footer.
  */
-function wpinv_email_footer( $invoice = array(), $email_type = '', $sent_to_admin = false ) {
-    wpinv_get_template( 'emails/wpinv-email-footer.php', array( 'invoice' => $invoice, 'email_type' => $email_type, 'sent_to_admin' => $sent_to_admin ) );
+function wpinv_email_footer($invoice = array(), $email_type = '', $sent_to_admin = false) {
+    wpinv_get_template('emails/wpinv-email-footer.php', array('invoice' => $invoice, 'email_type' => $email_type, 'sent_to_admin' => $sent_to_admin));
 }
 
-function wpinv_email_wrap_message( $message ) {
+function wpinv_email_wrap_message($message) {
     // Buffer
     ob_start();
 
-    do_action( 'wpinv_email_header' );
+    do_action('wpinv_email_header');
 
-    echo wpautop( wptexturize( $message ) );
+    echo wpautop(wptexturize($message));
 
-    do_action( 'wpinv_email_footer' );
+    do_action('wpinv_email_footer');
 
     // Get contents
     $message = ob_get_clean();
@@ -1398,8 +1398,8 @@ 
     return $message;
 }
 
-function wpinv_email_invoice_details( $invoice, $email_type = '', $sent_to_admin = false ) {
-    wpinv_get_template( 'emails/wpinv-email-invoice-details.php', array( 'invoice' => $invoice, 'email_type' => $email_type, 'sent_to_admin' => $sent_to_admin ) );
+function wpinv_email_invoice_details($invoice, $email_type = '', $sent_to_admin = false) {
+    wpinv_get_template('emails/wpinv-email-invoice-details.php', array('invoice' => $invoice, 'email_type' => $email_type, 'sent_to_admin' => $sent_to_admin));
 }
 
 /**
@@ -1409,102 +1409,102 @@ 
  * @param string $email_type
  * @param bool $sent_to_admin
  */
-function wpinv_email_invoice_items( $invoice, $email_type = '', $sent_to_admin = false ) {
+function wpinv_email_invoice_items($invoice, $email_type = '', $sent_to_admin = false) {
 
     // Prepare the invoice.
-    $invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice($invoice);
 
     // Abort if there is no invoice.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return;
     }
 
     // Prepare line items.
-    $columns = getpaid_invoice_item_columns( $invoice );
-    $columns = apply_filters( 'getpaid_invoice_line_items_table_columns', $columns, $invoice );
+    $columns = getpaid_invoice_item_columns($invoice);
+    $columns = apply_filters('getpaid_invoice_line_items_table_columns', $columns, $invoice);
 
     // Load the template.
-    wpinv_get_template( 'emails/wpinv-email-invoice-items.php', compact( 'invoice', 'columns', 'email_type', 'sent_to_admin' ) );
+    wpinv_get_template('emails/wpinv-email-invoice-items.php', compact('invoice', 'columns', 'email_type', 'sent_to_admin'));
 }
 
-function wpinv_email_billing_details( $invoice, $email_type = '', $sent_to_admin = false ) {
-    wpinv_get_template( 'emails/wpinv-email-billing-details.php', array( 'invoice' => $invoice, 'email_type' => $email_type, 'sent_to_admin' => $sent_to_admin ) );
+function wpinv_email_billing_details($invoice, $email_type = '', $sent_to_admin = false) {
+    wpinv_get_template('emails/wpinv-email-billing-details.php', array('invoice' => $invoice, 'email_type' => $email_type, 'sent_to_admin' => $sent_to_admin));
 }
 
-function wpinv_send_customer_invoice( $data = array() ) {
-    $invoice_id = !empty( $data['invoice_id'] ) ? absint( $data['invoice_id'] ) : NULL;
+function wpinv_send_customer_invoice($data = array()) {
+    $invoice_id = !empty($data['invoice_id']) ? absint($data['invoice_id']) : NULL;
 
-    if ( empty( $invoice_id ) ) {
+    if (empty($invoice_id)) {
         return;
     }
 
-    if ( !wpinv_current_user_can_manage_invoicing() ) {
-        wp_die( __( 'You do not have permission to send invoice notification', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+    if (!wpinv_current_user_can_manage_invoicing()) {
+        wp_die(__('You do not have permission to send invoice notification', 'invoicing'), __('Error', 'invoicing'), array('response' => 403));
     }
     
-    $sent = wpinv_user_invoice_notification( $invoice_id );
+    $sent = wpinv_user_invoice_notification($invoice_id);
 
     if ( -1 === $sent ) {
         $status = 'email_disabled';
-    } elseif ( $sent ) {
+    } elseif ($sent) {
         $status = 'email_sent';
     } else {
         $status = 'email_fail';
     }
 
-    $redirect = add_query_arg( array( 'wpinv-message' => $status, 'wpi_action' => false, 'invoice_id' => false ) );
-    wp_redirect( $redirect );
+    $redirect = add_query_arg(array('wpinv-message' => $status, 'wpi_action' => false, 'invoice_id' => false));
+    wp_redirect($redirect);
     exit;
 }
-add_action( 'wpinv_send_invoice', 'wpinv_send_customer_invoice' );
+add_action('wpinv_send_invoice', 'wpinv_send_customer_invoice');
 
-function wpinv_send_overdue_reminder( $data = array() ) {
-    $invoice_id = !empty( $data['invoice_id'] ) ? absint( $data['invoice_id'] ) : NULL;
+function wpinv_send_overdue_reminder($data = array()) {
+    $invoice_id = !empty($data['invoice_id']) ? absint($data['invoice_id']) : NULL;
 
-    if ( empty( $invoice_id ) ) {
+    if (empty($invoice_id)) {
         return;
     }
 
-    if ( !wpinv_current_user_can_manage_invoicing() ) {
-        wp_die( __( 'You do not have permission to send reminder notification', 'invoicing' ), __( 'Error', 'invoicing' ), array( 'response' => 403 ) );
+    if (!wpinv_current_user_can_manage_invoicing()) {
+        wp_die(__('You do not have permission to send reminder notification', 'invoicing'), __('Error', 'invoicing'), array('response' => 403));
     }
 
-    $sent = wpinv_send_payment_reminder_notification( $invoice_id );
+    $sent = wpinv_send_payment_reminder_notification($invoice_id);
     
     $status = $sent ? 'email_sent' : 'email_fail';
 
-    $redirect = add_query_arg( array( 'wpinv-message' => $status, 'wpi_action' => false, 'invoice_id' => false ) );
-    wp_redirect( $redirect );
+    $redirect = add_query_arg(array('wpinv-message' => $status, 'wpi_action' => false, 'invoice_id' => false));
+    wp_redirect($redirect);
     exit;
 }
-add_action( 'wpinv_send_reminder', 'wpinv_send_overdue_reminder' );
+add_action('wpinv_send_reminder', 'wpinv_send_overdue_reminder');
 
-function wpinv_send_customer_note_email( $data ) {
-    $invoice_id = !empty( $data['invoice_id'] ) ? absint( $data['invoice_id'] ) : NULL;
+function wpinv_send_customer_note_email($data) {
+    $invoice_id = !empty($data['invoice_id']) ? absint($data['invoice_id']) : NULL;
 
-    if ( empty( $invoice_id ) ) {
+    if (empty($invoice_id)) {
         return;
     }
 
-    $sent = wpinv_user_note_notification( $invoice_id, $data );
+    $sent = wpinv_user_note_notification($invoice_id, $data);
 }
-add_action( 'wpinv_new_customer_note', 'wpinv_send_customer_note_email', 10, 1 );
+add_action('wpinv_new_customer_note', 'wpinv_send_customer_note_email', 10, 1);
 
-function wpinv_add_notes_to_invoice_email( $invoice, $email_type, $sent_to_admin ) {
-    if ( !empty( $invoice ) && $email_type == 'user_invoice' && $invoice_notes = wpinv_get_invoice_notes( $invoice->ID, true ) ) {
-        $date_format = get_option( 'date_format' );
-        $time_format = get_option( 'time_format' );
+function wpinv_add_notes_to_invoice_email($invoice, $email_type, $sent_to_admin) {
+    if (!empty($invoice) && $email_type == 'user_invoice' && $invoice_notes = wpinv_get_invoice_notes($invoice->ID, true)) {
+        $date_format = get_option('date_format');
+        $time_format = get_option('time_format');
         ?>
         <div id="wpinv-email-notes">
-            <h3 class="wpinv-notes-t"><?php echo apply_filters( 'wpinv_email_invoice_notes_title', __( 'Invoice Notes', 'invoicing' ) ); ?></h3>
+            <h3 class="wpinv-notes-t"><?php echo apply_filters('wpinv_email_invoice_notes_title', __('Invoice Notes', 'invoicing')); ?></h3>
             <ol class="wpinv-notes-lists">
         <?php
-        foreach ( $invoice_notes as $note ) {
-            $note_time = strtotime( $note->comment_date );
+        foreach ($invoice_notes as $note) {
+            $note_time = strtotime($note->comment_date);
             ?>
             <li class="comment wpinv-note">
-            <p class="wpinv-note-date meta"><?php printf( __( '%2$s at %3$s', 'invoicing' ), $note->comment_author, date_i18n( $date_format, $note_time ), date_i18n( $time_format, $note_time ), $note_time ); ?></p>
-            <div class="wpinv-note-desc description"><?php echo wpautop( wptexturize( $note->comment_content ) ); ?></div>
+            <p class="wpinv-note-date meta"><?php printf(__('%2$s at %3$s', 'invoicing'), $note->comment_author, date_i18n($date_format, $note_time), date_i18n($time_format, $note_time), $note_time); ?></p>
+            <div class="wpinv-note-desc description"><?php echo wpautop(wptexturize($note->comment_content)); ?></div>
             </li>
             <?php
         }
@@ -1513,7 +1513,7 @@ 
         <?php
     }
 }
-add_action( 'wpinv_email_billing_details', 'wpinv_add_notes_to_invoice_email', 10, 3 );
+add_action('wpinv_email_billing_details', 'wpinv_add_notes_to_invoice_email', 10, 3);
 
 /**
  * Sends renewal reminders.
@@ -1521,35 +1521,35 @@ 
 function wpinv_email_renewal_reminders() {
     global $wpdb;
 
-    if ( ! wpinv_get_option( 'email_pre_payment_active' ) ) {
+    if (!wpinv_get_option('email_pre_payment_active')) {
         return;
     }
 
-    $reminder_days = wpinv_get_option( 'email_pre_payment_reminder_days' );
+    $reminder_days = wpinv_get_option('email_pre_payment_reminder_days');
 
-    if ( empty( $reminder_days ) ) {
+    if (empty($reminder_days)) {
         return;
     }
 
     // How many days before renewal should we send this email?
-    $reminder_days = array_unique( array_map( 'absint', array_filter( wpinv_parse_list( $reminder_days ) ) ) );
-    if ( empty( $reminder_days ) ) {
+    $reminder_days = array_unique(array_map('absint', array_filter(wpinv_parse_list($reminder_days))));
+    if (empty($reminder_days)) {
         return;
     }
 
-    if ( 1 == count( $reminder_days ) ) {
+    if (1 == count($reminder_days)) {
         $days  = $reminder_days[0];
-        $date  = date( 'Y-m-d', strtotime( "+$days days", current_time( 'timestamp' ) ) );
-        $where = $wpdb->prepare( "DATE(expiration)=%s", $date );
+        $date  = date('Y-m-d', strtotime("+$days days", current_time('timestamp')));
+        $where = $wpdb->prepare("DATE(expiration)=%s", $date);
     } else {
         $in    = array();
 
-        foreach ( $reminder_days as $days ) {
-            $date  = date( 'Y-m-d', strtotime( "+$days days", current_time( 'timestamp' ) ) );
-            $in[]  = $wpdb->prepare( "%s", $date );
+        foreach ($reminder_days as $days) {
+            $date  = date('Y-m-d', strtotime("+$days days", current_time('timestamp')));
+            $in[]  = $wpdb->prepare("%s", $date);
         }
 
-        $in    = implode( ',', $in );
+        $in    = implode(',', $in);
         $where = "DATE(expiration) IN ($in)";
     }
 
@@ -1557,20 +1557,20 @@ 
     $table = $wpdb->prefix . 'wpinv_subscriptions';
 
     // Fetch invoices.
-	$subscriptions  = $wpdb->get_results(
+	$subscriptions = $wpdb->get_results(
 		"SELECT parent_payment_id, product_id, expiration FROM $table
 		WHERE
             $where
             AND status IN ( 'trialling', 'active' )");
 
-    foreach ( $subscriptions as $subscription ) {
+    foreach ($subscriptions as $subscription) {
 
         // Skip packages.
-        if ( get_post_meta( $subscription->product_id, '_wpinv_type', true ) == 'package' ) {
+        if (get_post_meta($subscription->product_id, '_wpinv_type', true) == 'package') {
             continue;
         }
 
-        wpinv_send_pre_payment_reminder_notification( $subscription->parent_payment_id, $subscription->expiration );
+        wpinv_send_pre_payment_reminder_notification($subscription->parent_payment_id, $subscription->expiration);
     }
 
 }
@@ -1578,44 +1578,44 @@ 
 function wpinv_email_payment_reminders() {
     global $wpi_auto_reminder, $wpdb;
 
-    if ( ! wpinv_get_option( 'email_overdue_active' ) ) {
+    if (!wpinv_get_option('email_overdue_active')) {
         return;
     }
 
-    if ( $reminder_days = wpinv_get_option( 'email_due_reminder_days' ) ) {
+    if ($reminder_days = wpinv_get_option('email_due_reminder_days')) {
 
         // Get a list of all reminder dates.
-        $reminder_days  = is_array( $reminder_days ) ? array_values( $reminder_days ) : array();
+        $reminder_days  = is_array($reminder_days) ? array_values($reminder_days) : array();
 
         // Ensure we have integers.
-        $reminder_days  = array_unique( array_map( 'absint', $reminder_days ) );
+        $reminder_days  = array_unique(array_map('absint', $reminder_days));
 
         // Abort if non is selected.
-        if ( empty( $reminder_days ) ) {
+        if (empty($reminder_days)) {
             return;
         }
 
         // Fetch the max reminder day.
-        $max_date = max( $reminder_days );
+        $max_date = max($reminder_days);
 
         // Todays date.
-        $today = date( 'Y-m-d', current_time( 'timestamp' ) );
+        $today = date('Y-m-d', current_time('timestamp'));
 
-        if ( empty( $max_date ) ) {
-            $where = $wpdb->prepare( "DATE(invoices.due_date)=%s", $today );
-        } else if ( 1 == count( $reminder_days ) ) {
+        if (empty($max_date)) {
+            $where = $wpdb->prepare("DATE(invoices.due_date)=%s", $today);
+        } else if (1 == count($reminder_days)) {
             $days  = $reminder_days[0];
-            $date  = date( 'Y-m-d', strtotime( "-$days days", current_time( 'timestamp' ) ) );
-            $where = $wpdb->prepare( "DATE(invoices.due_date)=%s", $date );
+            $date  = date('Y-m-d', strtotime("-$days days", current_time('timestamp')));
+            $where = $wpdb->prepare("DATE(invoices.due_date)=%s", $date);
         } else {
             $in    = array();
 
-            foreach ( $reminder_days as $days ) {
-                $date  = date( 'Y-m-d', strtotime( "-$days days", current_time( 'timestamp' ) ) );
-                $in[]  = $wpdb->prepare( "%s", $date );
+            foreach ($reminder_days as $days) {
+                $date  = date('Y-m-d', strtotime("-$days days", current_time('timestamp')));
+                $in[]  = $wpdb->prepare("%s", $date);
             }
 
-            $in    = implode( ',', $in );
+            $in    = implode(',', $in);
             $where = "DATE(invoices.due_date) IN ($in)";
         }
 
@@ -1623,7 +1623,7 @@ 
         $table = $wpdb->prefix . 'getpaid_invoices';
 
         // Fetch invoices.
-		$invoices  = $wpdb->get_col(
+		$invoices = $wpdb->get_col(
 			"SELECT posts.ID FROM $wpdb->posts as posts
 			LEFT JOIN $table as invoices ON invoices.post_id = posts.ID
 			WHERE
@@ -1631,174 +1631,174 @@ 
 				AND posts.post_type = 'wpi_invoice'
                 AND posts.post_status = 'wpi-pending'");
 
-        $wpi_auto_reminder  = true;
+        $wpi_auto_reminder = true;
 
-        foreach ( $invoices as $invoice ) {
+        foreach ($invoices as $invoice) {
 
-            if ( 'payment_form' != get_post_meta( $invoice, 'wpinv_created_via', true ) ) {
-                do_action( 'wpinv_send_payment_reminder_notification', $invoice );
+            if ('payment_form' != get_post_meta($invoice, 'wpinv_created_via', true)) {
+                do_action('wpinv_send_payment_reminder_notification', $invoice);
             }
 
         }
 
-        $wpi_auto_reminder  = false;
+        $wpi_auto_reminder = false;
     }
 }
 
 /**
  * Sends an upcoming renewal notification.
  */
-function wpinv_send_pre_payment_reminder_notification( $invoice_id, $renewal_date ) {
+function wpinv_send_pre_payment_reminder_notification($invoice_id, $renewal_date) {
 
     $email_type = 'pre_payment';
-    if ( ! wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
 
-    $invoice    = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    $recipient  = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    if ( ! is_email( $recipient ) ) {
+    $recipient = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
 
-    $renewal_date = date_i18n( 'Y-m-d', strtotime( $renewal_date ) );
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $renewal_date = date_i18n('Y-m-d', strtotime($renewal_date));
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'       => $invoice,
             'email_type'    => $email_type,
-            'email_heading' => str_replace( '{subscription_renewal_date}', $renewal_date, $email_heading ),
+            'email_heading' => str_replace('{subscription_renewal_date}', $renewal_date, $email_heading),
             'sent_to_admin' => false,
             'plain_text'    => false,
-            'message_body'  => str_replace( '{subscription_renewal_date}', $renewal_date, $message_body )
-        ) );
+            'message_body'  => str_replace('{subscription_renewal_date}', $renewal_date, $message_body)
+        ));
 
-    $content        = wpinv_email_format_text( $content, $invoice );
+    $content = wpinv_email_format_text($content, $invoice);
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
 
-    if ( wpinv_mail_admin_bcc_active( $email_type ) ) {
-        $recipient  = wpinv_get_admin_email();
-        $subject    .= ' - ADMIN BCC COPY';
-        wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    if (wpinv_mail_admin_bcc_active($email_type)) {
+        $recipient = wpinv_get_admin_email();
+        $subject .= ' - ADMIN BCC COPY';
+        wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
     }
 
     return $sent;
 
 }
 
-function wpinv_send_payment_reminder_notification( $invoice_id ) {
+function wpinv_send_payment_reminder_notification($invoice_id) {
     $email_type = 'overdue';
-    if ( !wpinv_email_is_enabled( $email_type ) ) {
+    if (!wpinv_email_is_enabled($email_type)) {
         return false;
     }
 
-    $invoice    = wpinv_get_invoice( $invoice_id );
-    if ( empty( $invoice ) ) {
+    $invoice = wpinv_get_invoice($invoice_id);
+    if (empty($invoice)) {
         return false;
     }
 
-    if ( !$invoice->needs_payment() ) {
+    if (!$invoice->needs_payment()) {
         return false;
     }
 
-    $recipient  = wpinv_email_get_recipient( $email_type, $invoice_id, $invoice );
-    if ( !is_email( $recipient ) ) {
+    $recipient = wpinv_email_get_recipient($email_type, $invoice_id, $invoice);
+    if (!is_email($recipient)) {
         return false;
     }
 
-    do_action( 'wpinv_pre_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_pre_send_invoice_notification', $invoice, $email_type);
 
-    $subject        = wpinv_email_get_subject( $email_type, $invoice_id, $invoice );
-    $email_heading  = wpinv_email_get_heading( $email_type, $invoice_id, $invoice );
-    $headers        = wpinv_email_get_headers( $email_type, $invoice_id, $invoice );
-    $message_body   = wpinv_email_get_content( $email_type, $invoice_id, $invoice );
-    $attachments    = wpinv_email_get_attachments( $email_type, $invoice_id, $invoice );
+    $subject        = wpinv_email_get_subject($email_type, $invoice_id, $invoice);
+    $email_heading  = wpinv_email_get_heading($email_type, $invoice_id, $invoice);
+    $headers        = wpinv_email_get_headers($email_type, $invoice_id, $invoice);
+    $message_body   = wpinv_email_get_content($email_type, $invoice_id, $invoice);
+    $attachments    = wpinv_email_get_attachments($email_type, $invoice_id, $invoice);
 
-    $content        = wpinv_get_template_html( 'emails/wpinv-email-' . $email_type . '.php', array(
+    $content        = wpinv_get_template_html('emails/wpinv-email-' . $email_type . '.php', array(
             'invoice'       => $invoice,
             'email_type'    => $email_type,
             'email_heading' => $email_heading,
             'sent_to_admin' => false,
             'plain_text'    => false,
             'message_body'  => $message_body
-        ) );
+        ));
 
-    $content        = wpinv_email_format_text( $content, $invoice );
+    $content = wpinv_email_format_text($content, $invoice);
 
-    $sent = wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
-    if ( $sent ) {
-        do_action( 'wpinv_payment_reminder_sent', $invoice_id, $invoice );
+    $sent = wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
+    if ($sent) {
+        do_action('wpinv_payment_reminder_sent', $invoice_id, $invoice);
     }
 
-    if ( wpinv_mail_admin_bcc_active( $email_type ) ) {
-        $recipient  = wpinv_get_admin_email();
-        $subject    .= ' - ADMIN BCC COPY';
-        wpinv_mail_send( $recipient, $subject, $content, $headers, $attachments );
+    if (wpinv_mail_admin_bcc_active($email_type)) {
+        $recipient = wpinv_get_admin_email();
+        $subject .= ' - ADMIN BCC COPY';
+        wpinv_mail_send($recipient, $subject, $content, $headers, $attachments);
     }
 
-    do_action( 'wpinv_post_send_invoice_notification', $invoice, $email_type );
+    do_action('wpinv_post_send_invoice_notification', $invoice, $email_type);
 
     return $sent;
 }
-add_action( 'wpinv_send_payment_reminder_notification', 'wpinv_send_payment_reminder_notification', 10, 1 );
+add_action('wpinv_send_payment_reminder_notification', 'wpinv_send_payment_reminder_notification', 10, 1);
 
-function wpinv_payment_reminder_sent( $invoice_id, $invoice ) {
+function wpinv_payment_reminder_sent($invoice_id, $invoice) {
     global $wpi_auto_reminder;
 
-    $sent = get_post_meta( $invoice_id, '_wpinv_reminder_sent', true );
+    $sent = get_post_meta($invoice_id, '_wpinv_reminder_sent', true);
 
-    if ( empty( $sent ) ) {
+    if (empty($sent)) {
         $sent = array();
     }
-    $sent[] = date_i18n( 'Y-m-d' );
+    $sent[] = date_i18n('Y-m-d');
 
-    update_post_meta( $invoice_id, '_wpinv_reminder_sent', $sent );
+    update_post_meta($invoice_id, '_wpinv_reminder_sent', $sent);
 
-    if ( $wpi_auto_reminder ) { // Auto reminder note.
-        $note = __( 'Automated reminder sent to the user.', 'invoicing' );
-        $invoice->add_note( $note, false, false, true );
+    if ($wpi_auto_reminder) { // Auto reminder note.
+        $note = __('Automated reminder sent to the user.', 'invoicing');
+        $invoice->add_note($note, false, false, true);
     } else { // Menual reminder note.
-        $note = __( 'Manual reminder sent to the user.', 'invoicing' );
-        $invoice->add_note( $note );
+        $note = __('Manual reminder sent to the user.', 'invoicing');
+        $invoice->add_note($note);
     }
 }
-add_action( 'wpinv_payment_reminder_sent', 'wpinv_payment_reminder_sent', 10, 2 );
+add_action('wpinv_payment_reminder_sent', 'wpinv_payment_reminder_sent', 10, 2);
 
-function wpinv_invoice_notification_set_locale( $invoice, $email_type, $site = false ) {
-    if ( empty( $invoice ) ) {
+function wpinv_invoice_notification_set_locale($invoice, $email_type, $site = false) {
+    if (empty($invoice)) {
         return;
     }
 
-    if ( is_int( $invoice ) ) {
-        $invoice = wpinv_get_invoice( $invoice );
+    if (is_int($invoice)) {
+        $invoice = wpinv_get_invoice($invoice);
     }
 
-    if ( ! empty( $invoice ) && is_object( $invoice ) ) {
-        if ( ! $site && function_exists( 'get_user_locale' ) ) {
-            $locale = get_user_locale( $invoice->get_user_id() );
+    if (!empty($invoice) && is_object($invoice)) {
+        if (!$site && function_exists('get_user_locale')) {
+            $locale = get_user_locale($invoice->get_user_id());
         } else {
             $locale = get_locale();
         }
 
-        wpinv_switch_to_locale( $locale );
+        wpinv_switch_to_locale($locale);
     }
 }
-add_action( 'wpinv_pre_send_invoice_notification', 'wpinv_invoice_notification_set_locale', 10, 3 );
+add_action('wpinv_pre_send_invoice_notification', 'wpinv_invoice_notification_set_locale', 10, 3);
 
-function wpinv_invoice_notification_restore_locale( $invoice, $email_type, $site = false ) {
-    if ( empty( $invoice ) ) {
+function wpinv_invoice_notification_restore_locale($invoice, $email_type, $site = false) {
+    if (empty($invoice)) {
         return;
     }
 
     wpinv_restore_locale();
 }
-add_action( 'wpinv_post_send_invoice_notification', 'wpinv_invoice_notification_restore_locale', 10, 3 );
+add_action('wpinv_post_send_invoice_notification', 'wpinv_invoice_notification_restore_locale', 10, 3);