AyeCode / invoicing

includes/wpinv-address-functions.php

Indentation +87 added lines, -87 removed lines

@@ -13,9 +13,9 @@ 
 
 
 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 );
 }
 
 /**
@@ -36,7 +36,7 @@ 
  */
 function wpinv_sanitize_country( $country ) {
 
-	// Enure the country is specified
+    // Enure the country is specified
     if ( empty( $country ) ) {
         $country = wpinv_get_default_country();
     }
@@ -66,9 +66,9 @@ 
 }
 
 function wpinv_get_default_state() {
-	$state = wpinv_get_option( 'default_state', '' );
+    $state = wpinv_get_option( 'default_state', '' );
 
-	return apply_filters( 'wpinv_default_state', $state );
+    return apply_filters( 'wpinv_default_state', $state );
 }
 
 function wpinv_state_name( $state_code = '', $country_code = '' ) {
@@ -299,11 +299,11 @@ 
 
     $country = wpinv_sanitize_country( $country );
 
-	foreach ( wpinv_get_continents( 'countries' ) as $continent_code => $countries ) {
-		if ( false !== array_search( $country, $countries, true ) ) {
-			return $continent_code;
-		}
-	}
+    foreach ( wpinv_get_continents( 'countries' ) as $continent_code => $countries ) {
+        if ( false !== array_search( $country, $countries, true ) ) {
+            return $continent_code;
+        }
+    }
 
     return '';
 
@@ -595,31 +595,31 @@ 
 }
 
 function wpinv_get_states_field() {
-	if ( empty( $_POST['country'] ) ) {
-		$_POST['country'] = wpinv_get_default_country();
-	}
-	$states = wpinv_get_country_states( sanitize_text_field( $_POST['country'] ) );
+    if ( empty( $_POST['country'] ) ) {
+        $_POST['country'] = wpinv_get_default_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'] );
 
         $class  = isset( $_POST['class'] ) ? esc_attr( sanitize_text_field( $_POST['class'] ) ) : '';
         $class .= " $sanitized_field_name getpaid_js_field-state custom-select wpinv-select wpi_select2";
 
         $args  = array(
-			'name'             => $sanitized_field_name,
-			'id'               => $sanitized_field_name,
-			'class'            => implode( ' ', array_unique( explode( ' ', $class ) ) ),
-			'options'          => array_merge( array( '' => '' ), $states ),
-			'show_option_all'  => false,
-			'show_option_none' => false,
-		);
-
-		wpinv_html_select( $args );
-
-	} else {
-		echo 'nostates';
-	}
+            'name'             => $sanitized_field_name,
+            'id'               => $sanitized_field_name,
+            'class'            => implode( ' ', array_unique( explode( ' ', $class ) ) ),
+            'options'          => array_merge( array( '' => '' ), $states ),
+            'show_option_all'  => false,
+            'show_option_none' => false,
+        );
+
+        wpinv_html_select( $args );
+
+    } else {
+        echo 'nostates';
+    }
 
 }
 
@@ -638,47 +638,47 @@ 
  */
 function wpinv_get_address_formats() {
 
-		return apply_filters(
+        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}}",
-				'AT'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'BE'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'CA'      => "{{company}}\n{{name}}\n{{address}}\n{{city}} {{state_code}}  {{zip}}\n{{country}}",
-				'CH'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'CL'      => "{{company}}\n{{name}}\n{{address}}\n{{state}}\n{{zip}} {{city}}\n{{country}}",
-				'CN'      => "{{country}} {{zip}}\n{{state}}, {{city}}, {{address}}\n{{company}}\n{{name}}",
-				'CZ'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'DE'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'EE'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'FI'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'DK'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'FR'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city_upper}}\n{{country}}",
-				'HK'      => "{{company}}\n{{first_name}} {{last_name_upper}}\n{{address}}\n{{city_upper}}\n{{state_upper}}\n{{country}}",
-				'HU'      => "{{name}}\n{{company}}\n{{city}}\n{{address}}\n{{zip}}\n{{country}}",
-				'IN'      => "{{company}}\n{{name}}\n{{address}}\n{{city}} {{zip}}\n{{state}}, {{country}}",
-				'IS'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'IT'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}}\n{{city}}\n{{state_upper}}\n{{country}}",
-				'JP'      => "{{zip}}\n{{state}} {{city}} {{address}}\n{{company}}\n{{last_name}} {{first_name}}\n{{country}}",
-				'TW'      => "{{company}}\n{{last_name}} {{first_name}}\n{{address}}\n{{state}}, {{city}} {{zip}}\n{{country}}",
-				'LI'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'NL'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'NZ'      => "{{name}}\n{{company}}\n{{address}}\n{{city}} {{zip}}\n{{country}}",
-				'NO'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'PL'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'PT'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'SK'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'RS'      => "{{name}}\n{{company}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'SI'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'ES'      => "{{name}}\n{{company}}\n{{address}}\n{{zip}} {{city}}\n{{state}}\n{{country}}",
-				'SE'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
-				'TR'      => "{{name}}\n{{company}}\n{{address}}\n{{zip}} {{city}} {{state}}\n{{country}}",
-				'UG'      => "{{name}}\n{{company}}\n{{address}}\n{{city}}\n{{state}}, {{country}}",
-				'US'      => "{{name}}\n{{company}}\n{{address}}\n{{city}}, {{state_code}} {{zip}}\n{{country}}",
-				'VN'      => "{{name}}\n{{company}}\n{{address}}\n{{city}}\n{{country}}",
-			)
-		);
+            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}}",
+                'AT'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'BE'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'CA'      => "{{company}}\n{{name}}\n{{address}}\n{{city}} {{state_code}}  {{zip}}\n{{country}}",
+                'CH'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'CL'      => "{{company}}\n{{name}}\n{{address}}\n{{state}}\n{{zip}} {{city}}\n{{country}}",
+                'CN'      => "{{country}} {{zip}}\n{{state}}, {{city}}, {{address}}\n{{company}}\n{{name}}",
+                'CZ'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'DE'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'EE'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'FI'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'DK'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'FR'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city_upper}}\n{{country}}",
+                'HK'      => "{{company}}\n{{first_name}} {{last_name_upper}}\n{{address}}\n{{city_upper}}\n{{state_upper}}\n{{country}}",
+                'HU'      => "{{name}}\n{{company}}\n{{city}}\n{{address}}\n{{zip}}\n{{country}}",
+                'IN'      => "{{company}}\n{{name}}\n{{address}}\n{{city}} {{zip}}\n{{state}}, {{country}}",
+                'IS'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'IT'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}}\n{{city}}\n{{state_upper}}\n{{country}}",
+                'JP'      => "{{zip}}\n{{state}} {{city}} {{address}}\n{{company}}\n{{last_name}} {{first_name}}\n{{country}}",
+                'TW'      => "{{company}}\n{{last_name}} {{first_name}}\n{{address}}\n{{state}}, {{city}} {{zip}}\n{{country}}",
+                'LI'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'NL'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'NZ'      => "{{name}}\n{{company}}\n{{address}}\n{{city}} {{zip}}\n{{country}}",
+                'NO'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'PL'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'PT'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'SK'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'RS'      => "{{name}}\n{{company}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'SI'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'ES'      => "{{name}}\n{{company}}\n{{address}}\n{{zip}} {{city}}\n{{state}}\n{{country}}",
+                'SE'      => "{{company}}\n{{name}}\n{{address}}\n{{zip}} {{city}}\n{{country}}",
+                'TR'      => "{{name}}\n{{company}}\n{{address}}\n{{zip}} {{city}} {{state}}\n{{country}}",
+                'UG'      => "{{name}}\n{{company}}\n{{address}}\n{{city}}\n{{state}}, {{country}}",
+                'US'      => "{{name}}\n{{company}}\n{{address}}\n{{city}}, {{state_code}} {{zip}}\n{{country}}",
+                'VN'      => "{{name}}\n{{company}}\n{{address}}\n{{city}}\n{{country}}",
+            )
+        );
 }
 
 /**
@@ -695,21 +695,21 @@ 
     }
 
     // Get all formats.
-	$formats = wpinv_get_address_formats();
+    $formats = wpinv_get_address_formats();
 
-	// Get format for the specified country.
-	$format = ( $country && isset( $formats[ $country ] ) ) ? $formats[ $country ] : $formats['default'];
+    // Get format for the specified country.
+    $format = ( $country && isset( $formats[ $country ] ) ) ? $formats[ $country ] : $formats['default'];
 
     /**
-	 * Filters the address format to use on Invoices.
+     * Filters the address format to use on Invoices.
      *
      * New lines will be replaced by a `br` element. Double new lines will be replaced by a paragraph. HTML tags are allowed.
-	 *
-	 * @since 1.0.13
-	 *
-	 * @param string $format  The address format to use.
+     *
+     * @since 1.0.13
+     *
+     * @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 );
 }
 
@@ -730,8 +730,8 @@ 
         'country'    => '',
         'zip'        => '',
         'first_name' => '',
-		'last_name'  => '',
-		'company'    => '',
+        'last_name'  => '',
+        'company'    => '',
     );
 
     $args    = map_deep( wp_parse_args( array_filter( $billing_details ), $default_args ), 'trim' );
@@ -752,14 +752,14 @@ 
     $args['country_code'] = $country;
 
     /**
-	 * Filters the address format replacements to use on Invoices.
+     * Filters the address format replacements to use on Invoices.
+     *
+     *
+     * @since 1.0.13
      *
-	 *
-	 * @since 1.0.13
-	 *
-	 * @param array $replacements  The address replacements to use.
+     * @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 );
 
     $return = array();
@@ -782,5 +782,5 @@ 
  * @return string
  */
 function wpinv_trim_formatted_address_line( $line ) {
-	return trim( $line, ', ' );
+    return trim( $line, ', ' );
 }

Spacing +142 added lines, -142 removed lines

@@ -7,15 +7,15 @@ 
  */
 
 // MUST have WordPress.
-if ( ! defined( 'WPINC' ) ) {
+if (!defined('WPINC')) {
     exit;
 }
 
 
 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);
 }
 
 /**
@@ -23,8 +23,8 @@ 
  *
  * @return string
  */
-function getpaid_get_ip_country( $ip_address = '' ) {
-    $country = GetPaid_Geolocation::geolocate_ip( $ip_address, true );
+function getpaid_get_ip_country($ip_address = '') {
+    $country = GetPaid_Geolocation::geolocate_ip($ip_address, true);
     return $country['country'];
 }
 
@@ -34,59 +34,59 @@ 
  * @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', '' );
+	$state = wpinv_get_option('default_state', '');
 
-	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);
 }
 
 /**
@@ -94,24 +94,24 @@ 
  *
  * @param WPInv_Invoice $invoice
  */
-function getpaid_maybe_add_default_address( &$invoice ) {
+function getpaid_maybe_add_default_address(&$invoice) {
 
     $user_id = $invoice->get_user_id();
 
     // Abort if the invoice belongs to no one.
-    if ( empty( $user_id ) ) {
+    if (empty($user_id)) {
         return;
     }
 
     // Fill in defaults whenever necessary.
-    foreach ( wpinv_get_user_address( $user_id ) as $key => $value ) {
+    foreach (wpinv_get_user_address($user_id) as $key => $value) {
 
-        if ( is_callable( $invoice, "get_$key" ) ) {
-            $current = call_user_func( array( $invoice, "get_$key" ) );
+        if (is_callable($invoice, "get_$key")) {
+            $current = call_user_func(array($invoice, "get_$key"));
 
-            if ( empty( $current ) ) {
+            if (empty($current)) {
                 $method = "set_$key";
-                $invoice->$method( $value );
+                $invoice->$method($value);
             }
 }
 }
@@ -128,22 +128,22 @@ 
     $address_fields = apply_filters(
         'getpaid_user_address_fields',
         array(
-            'first_name' => __( 'First Name', 'invoicing' ),
-            'last_name'  => __( 'Last Name', 'invoicing' ),
-            'address'    => __( 'Address', 'invoicing' ),
-            'city'       => __( 'City', 'invoicing' ),
-            'country'    => __( 'Country', 'invoicing' ),
-            'state'      => __( 'State', 'invoicing' ),
-            'zip'        => __( 'Zip/Postal Code', 'invoicing' ),
-            'phone'      => __( 'Phone Number', 'invoicing' ),
-            'company'    => __( 'Company', 'invoicing' ),
-            'company_id' => __( 'Company ID', 'invoicing' ),
-            'vat_number' => __( 'VAT Number', 'invoicing' ),
+            'first_name' => __('First Name', 'invoicing'),
+            'last_name'  => __('Last Name', 'invoicing'),
+            'address'    => __('Address', 'invoicing'),
+            'city'       => __('City', 'invoicing'),
+            'country'    => __('Country', 'invoicing'),
+            'state'      => __('State', 'invoicing'),
+            'zip'        => __('Zip/Postal Code', 'invoicing'),
+            'phone'      => __('Phone Number', 'invoicing'),
+            'company'    => __('Company', 'invoicing'),
+            'company_id' => __('Company ID', 'invoicing'),
+            'vat_number' => __('VAT Number', 'invoicing'),
         )
     );
 
-    if ( ! wpinv_use_taxes() && isset( $address_fields['vat_number'] ) && ! wp_doing_ajax() ) {
-        unset( $address_fields['vat_number'] );
+    if (!wpinv_use_taxes() && isset($address_fields['vat_number']) && !wp_doing_ajax()) {
+        unset($address_fields['vat_number']);
     }
 
     return $address_fields;
@@ -154,8 +154,8 @@ 
  *
  * @return bool
  */
-function getpaid_is_address_field_whitelisted( $key ) {
-    return array_key_exists( $key, getpaid_user_address_fields() );
+function getpaid_is_address_field_whitelisted($key) {
+    return array_key_exists($key, getpaid_user_address_fields());
 }
 
 /**
@@ -165,30 +165,30 @@ 
  *
  * @param WPInv_Invoice $invoice
  */
-function getpaid_save_invoice_user_address( $invoice ) {
+function getpaid_save_invoice_user_address($invoice) {
 
     // Retrieve the invoice.
-    $invoice = wpinv_get_invoice( $invoice );
+    $invoice = wpinv_get_invoice($invoice);
 
     // Abort if it does not exist.
-    if ( empty( $invoice ) || $invoice->is_renewal() ) {
+    if (empty($invoice) || $invoice->is_renewal()) {
         return;
     }
 
-    foreach ( array_keys( getpaid_user_address_fields() ) as $field ) {
+    foreach (array_keys(getpaid_user_address_fields()) as $field) {
 
-        if ( is_callable( array( $invoice, "get_$field" ) ) ) {
-            $value = call_user_func( array( $invoice, "get_$field" ) );
+        if (is_callable(array($invoice, "get_$field"))) {
+            $value = call_user_func(array($invoice, "get_$field"));
 
             // 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);
             }
         }
     }
 
 }
-add_action( 'getpaid_checkout_invoice_updated', 'getpaid_save_invoice_user_address' );
+add_action('getpaid_checkout_invoice_updated', 'getpaid_save_invoice_user_address');
 
 /**
  * Retrieves a saved user address.
@@ -196,14 +196,14 @@ 
  * @param int $user_id The user id whose address we should get. Defaults to the current user id.
  * @return array
  */
-function wpinv_get_user_address( $user_id = 0 ) {
+function wpinv_get_user_address($user_id = 0) {
 
     // Prepare the user id.
-    $user_id   = empty( $user_id ) ? get_current_user_id() : $user_id;
-    $user_info = get_userdata( $user_id );
+    $user_id   = empty($user_id) ? get_current_user_id() : $user_id;
+    $user_info = get_userdata($user_id);
 
     // Abort if non exists.
-    if ( empty( $user_info ) ) {
+    if (empty($user_info)) {
         return array();
     }
 
@@ -214,11 +214,11 @@ 
         'display_name' => $user_info->display_name,
     );
 
-    foreach ( array_keys( getpaid_user_address_fields() ) as $field ) {
-        $address[ $field ] = getpaid_get_user_address_field( $user_id, $field );
+    foreach (array_keys(getpaid_user_address_fields()) as $field) {
+        $address[$field] = getpaid_get_user_address_field($user_id, $field);
     }
 
-    $address = array_filter( $address );
+    $address = array_filter($address);
 
     $defaults = array(
         'first_name' => $user_info->first_name,
@@ -227,7 +227,7 @@ 
         'country'    => wpinv_get_default_country(),
     );
 
-    return getpaid_array_merge_if_empty( $address, $defaults );
+    return getpaid_array_merge_if_empty($address, $defaults);
 
 }
 
@@ -238,7 +238,7 @@ 
  * @param string $field The field to use.
  * @return string|null
  */
-function getpaid_get_user_address_field( $user_id, $field ) {
+function getpaid_get_user_address_field($user_id, $field) {
 
     $prefixes = array(
         '_wpinv_',
@@ -246,15 +246,15 @@ 
         '',
     );
 
-    foreach ( $prefixes as $prefix ) {
+    foreach ($prefixes as $prefix) {
 
         // Meta table.
-        $value = get_user_meta( $user_id, $prefix . $field, true );
+        $value = get_user_meta($user_id, $prefix . $field, true);
 
         // UWP table.
-        $value = ( empty( $value ) && function_exists( 'uwp_get_usermeta' ) ) ? uwp_get_usermeta( $user_id, $prefix . $field ) : $value;
+        $value = (empty($value) && function_exists('uwp_get_usermeta')) ? uwp_get_usermeta($user_id, $prefix . $field) : $value;
 
-        if ( ! empty( $value ) ) {
+        if (!empty($value)) {
             return $value;
         }
 }
@@ -270,16 +270,16 @@ 
  * @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;
@@ -295,12 +295,12 @@ 
  * @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;
 		}
 	}
@@ -316,13 +316,13 @@ 
  * @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;
@@ -335,8 +335,8 @@ 
  * @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);
 }
 
 /**
@@ -346,22 +346,22 @@ 
  * @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);
 }
 
 /**
@@ -371,7 +371,7 @@ 
  * @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'));
 }
 
 /**
@@ -381,7 +381,7 @@ 
  * @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'));
 }
 
 /**
@@ -391,7 +391,7 @@ 
  * @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'));
 }
 
 /**
@@ -401,7 +401,7 @@ 
  * @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'));
 }
 
 /**
@@ -411,7 +411,7 @@ 
  * @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'));
 }
 
 /**
@@ -421,7 +421,7 @@ 
  * @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'));
 }
 
 /**
@@ -431,7 +431,7 @@ 
  * @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'));
 }
 
 /**
@@ -441,7 +441,7 @@ 
  * @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'));
 }
 
 /**
@@ -451,7 +451,7 @@ 
  * @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'));
 }
 
 /**
@@ -461,7 +461,7 @@ 
  * @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'));
 }
 
 /**
@@ -471,7 +471,7 @@ 
  * @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'));
 }
 
 /**
@@ -481,7 +481,7 @@ 
  * @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'));
 }
 
 /**
@@ -491,7 +491,7 @@ 
  * @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'));
 }
 
 /**
@@ -501,7 +501,7 @@ 
  * @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'));
 }
 
 /**
@@ -511,7 +511,7 @@ 
  * @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'));
 }
 
 /**
@@ -521,7 +521,7 @@ 
  * @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'));
 }
 
 /**
@@ -531,7 +531,7 @@ 
  * @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'));
 }
 
 /**
@@ -541,7 +541,7 @@ 
  * @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'));
 }
 
 /**
@@ -551,7 +551,7 @@ 
  * @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'));
 }
 
 /**
@@ -561,7 +561,7 @@ 
  * @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'));
 }
 
 /**
@@ -571,7 +571,7 @@ 
  * @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'));
 }
 
 /**
@@ -581,7 +581,7 @@ 
  * @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'));
 }
 
 /**
@@ -591,31 +591,31 @@ 
  * @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']);
 
-        $class  = isset( $_POST['class'] ) ? esc_attr( sanitize_text_field( $_POST['class'] ) ) : '';
+        $class  = isset($_POST['class']) ? esc_attr(sanitize_text_field($_POST['class'])) : '';
         $class .= " $sanitized_field_name getpaid_js_field-state custom-select wpinv-select wpi_select2";
 
-        $args  = array(
+        $args = array(
 			'name'             => $sanitized_field_name,
 			'id'               => $sanitized_field_name,
-			'class'            => implode( ' ', array_unique( explode( ' ', $class ) ) ),
-			'options'          => array_merge( array( '' => '' ), $states ),
+			'class'            => implode(' ', array_unique(explode(' ', $class))),
+			'options'          => array_merge(array('' => ''), $states),
 			'show_option_all'  => false,
 			'show_option_none' => false,
 		);
 
-		wpinv_html_select( $args );
+		wpinv_html_select($args);
 
 	} else {
 		echo 'nostates';
@@ -623,10 +623,10 @@ 
 
 }
 
-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);
 }
 
 /**
@@ -688,9 +688,9 @@ 
  * @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();
     }
 
@@ -698,7 +698,7 @@ 
 	$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.
@@ -710,7 +710,7 @@ 
 	 * @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);
 }
 
 /**
@@ -721,7 +721,7 @@ 
  * @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'    => '',
@@ -734,15 +734,15 @@ 
 		'company'    => '',
     );
 
-    $args    = map_deep( wp_parse_args( array_filter( $billing_details ), $default_args ), 'trim' );
+    $args    = map_deep(wp_parse_args(array_filter($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'];
@@ -760,14 +760,14 @@ 
 	 * @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 ) ) : '';
-        $return[ '{{' . $key . '}}' ] = $value;
-        $return[ '{{' . $key . '_upper}}' ] = wpinv_utf8_strtoupper( $value );
+    foreach ($replacements as $key => $value) {
+        $value = is_scalar($value) ? trim(sanitize_text_field($value)) : '';
+        $return['{{' . $key . '}}'] = $value;
+        $return['{{' . $key . '_upper}}'] = wpinv_utf8_strtoupper($value);
     }
 
     return $return;
@@ -781,6 +781,6 @@ 
  * @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, ', ');
 }

includes/class-getpaid-invoice-notification-emails.php

Indentation +470 added lines, -470 removed lines

@@ -12,493 +12,493 @@
  */
 class GetPaid_Invoice_Notification_Emails {
 
-	/**
-	 * The array of invoice email actions.
-	 *
-	 * @param array
-	 */
-	public $invoice_actions;
-
-	/**
-	 * Class constructor
-	 *
-	 */
-	public function __construct() {
-
-		$this->invoice_actions = apply_filters(
-			'getpaid_notification_email_invoice_triggers',
-			array(
-				'getpaid_new_invoice'                   => array( 'new_invoice', 'user_invoice' ),
-				'getpaid_invoice_status_wpi-cancelled'  => 'cancelled_invoice',
-				'getpaid_invoice_status_wpi-failed'     => 'failed_invoice',
-				'getpaid_invoice_status_wpi-onhold'     => 'onhold_invoice',
-				'getpaid_invoice_status_wpi-processing' => 'processing_invoice',
-				'getpaid_invoice_status_publish'        => 'completed_invoice',
-				'getpaid_invoice_status_wpi-renewal'    => 'completed_invoice',
-				'getpaid_invoice_status_wpi-refunded'   => 'refunded_invoice',
-				'getpaid_new_customer_note'             => 'user_note',
-				'getpaid_daily_maintenance'             => 'overdue',
-			)
-		);
-
-		$this->init_hooks();
-
-	}
-
-	/**
-	 * Registers email hooks.
-	 */
-	public function init_hooks() {
-
-		add_filter( 'getpaid_get_email_merge_tags', array( $this, 'invoice_merge_tags' ), 10, 2 );
-		add_filter( 'getpaid_invoice_email_recipients', array( $this, 'filter_email_recipients' ), 10, 2 );
-
-		foreach ( $this->invoice_actions as $hook => $email_type ) {
-			$this->init_email_type_hook( $hook, $email_type );
-		}
-	}
-
-	/**
-	 * Registers an email hook for an invoice action.
-	 *
-	 * @param string $hook
-	 * @param string|array $email_type
-	 */
-	public function init_email_type_hook( $hook, $email_type ) {
-
-		$email_type = wpinv_parse_list( $email_type );
-
-		foreach ( $email_type as $type ) {
-
-			$email = new GetPaid_Notification_Email( $type );
-
-			// Abort if it is not active.
-			if ( ! $email->is_active() ) {
-				continue;
-			}
-
-			if ( method_exists( $this, $type ) ) {
-				add_action( $hook, array( $this, $type ), 100, 2 );
-				continue;
-			}
-
-			do_action( 'getpaid_invoice_init_email_type_hook', $type, $hook );
-		}
-
-	}
-
-	/**
-	 * Filters invoice merge tags.
-	 *
-	 * @param array $merge_tags
-	 * @param mixed|WPInv_Invoice|WPInv_Subscription $object
-	 */
-	public function invoice_merge_tags( $merge_tags, $object ) {
-
-		if ( is_a( $object, 'WPInv_Invoice' ) ) {
-			return array_merge(
-				$merge_tags,
-				$this->get_invoice_merge_tags( $object )
-			);
-		}
-
-		if ( is_a( $object, 'WPInv_Subscription' ) ) {
-			return array_merge(
-				$merge_tags,
-				$this->get_invoice_merge_tags( $object->get_parent_payment() )
-			);
-		}
-
-		return $merge_tags;
-
-	}
-
-	/**
-	 * Generates invoice merge tags.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 * @return array
-	 */
-	public function get_invoice_merge_tags( $invoice ) {
-
-		// Abort if it does not exist.
-		if ( ! $invoice->get_id() ) {
-			return array();
-		}
-
-		$due_date   = $invoice->get_due_date();
-		$due_date   = empty( $due_date ) ? time() + MINUTE_IN_SECONDS : strtotime( $due_date ) + ( (int) get_option( 'gmt_offset' ) * HOUR_IN_SECONDS );
-		$merge_tags = 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_currency}'     => sanitize_text_field( $invoice->get_currency() ),
-			'{invoice_total}'        => sanitize_text_field( wpinv_price( $invoice->get_total(), $invoice->get_currency() ) ),
-			'{invoice_link}'         => esc_url( $invoice->get_view_url() ),
-			'{invoice_pay_link}'     => esc_url( $invoice->get_checkout_payment_url() ),
-			'{invoice_receipt_link}' => esc_url( $invoice->get_receipt_url() ),
-			'{invoice_date}'         => getpaid_format_date_value( $invoice->get_date_created() ),
-			'{invoice_due_date}'     => getpaid_format_date_value( $invoice->get_due_date(), __( 'on receipt', 'invoicing' ) ),
-			'{invoice_quote}'        => sanitize_text_field( strtolower( $invoice->get_label() ) ),
-			'{invoice_label}'        => sanitize_text_field( ucfirst( $invoice->get_label() ) ),
-			'{invoice_description}'  => wp_kses_post( $invoice->get_description() ),
-			'{subscription_name}'    => wp_kses_post( $invoice->get_subscription_name() ),
-			'{is_was}'               => $due_date < time() ? __( 'was', 'invoicing' ) : __( 'is', 'invoicing' ),
-		);
-
-		$payment_form_data = $invoice->get_meta( 'payment_form_data', true );
-
-		if ( is_array( $payment_form_data ) ) {
-
-			foreach ( $payment_form_data as $label => $value ) {
-
-				$label = preg_replace( '/[^a-z0-9]+/', '_', strtolower( $label ) );
-				$value = is_array( $value ) ? implode( ', ', $value ) : $value;
-
-				if ( is_scalar( $value ) ) {
-					$merge_tags[ "{{$label}}" ] = wp_kses_post( $value );
-				}
-			}
-		}
-
-		return apply_filters( 'getpaid_invoice_email_merge_tags', $merge_tags, $invoice );
-	}
-
-	/**
-	 * Helper function to send an email.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 * @param GetPaid_Notification_Email $email
-	 * @param string $type
-	 * @param string|array $recipients
-	 * @param array $extra_args Extra template args.
-	 */
-	public function send_email( $invoice, $email, $type, $recipients, $extra_args = array() ) {
-
-		do_action( 'getpaid_before_send_invoice_notification', $type, $invoice, $email );
-
-		$skip = $invoice->is_free() && wpinv_get_option( 'skip_email_free_invoice' );
-		if ( apply_filters( 'getpaid_skip_invoice_email', $skip, $type, $invoice ) ) {
-			return;
-		}
-
-		$mailer     = new GetPaid_Notification_Email_Sender();
-		$merge_tags = $email->get_merge_tags();
-
-		$result = $mailer->send(
-			apply_filters( 'getpaid_invoice_email_recipients', wpinv_parse_list( $recipients ), $email ),
-			$email->add_merge_tags( $email->get_subject(), $merge_tags ),
-			$email->get_content( $merge_tags, $extra_args ),
-			$email->get_attachments()
-		);
-
-		// Maybe send a copy to the admin.
-		if ( $email->include_admin_bcc() ) {
-			$mailer->send(
-				wpinv_get_admin_email(),
-				$email->add_merge_tags( $email->get_subject() . __( ' - ADMIN BCC COPY', 'invoicing' ), $merge_tags ),
-				$email->get_content( $merge_tags ),
-				$email->get_attachments()
-			);
-		}
-
-		if ( $result ) {
-			$invoice->add_system_note(
-				sprintf(
-					// translators: %1 is the email type, %2 is the invoice recipient.
-					__( 'Successfully sent %1$s notification email to %2$s.', 'invoicing' ),
-					sanitize_key( $type ),
-					$email->is_admin_email() ? __( 'admin', 'invoicing' ) : __( 'the customer', 'invoicing' )
-				)
-			);
-		} else {
-			$invoice->add_system_note(
-				sprintf(
-					// translators: %1 is the email type, %2 is the invoice recipient.
-					__( 'Failed sending %1$s notification email to %2$s.', 'invoicing' ),
-					sanitize_key( $type ),
-					$email->is_admin_email() ? __( 'admin', 'invoicing' ) : __( 'the customer', 'invoicing' )
-				)
-			);
-		}
-
-		do_action( 'getpaid_after_send_invoice_notification', $type, $invoice, $email );
-
-		return $result;
-	}
-
-	/**
-	 * Also send emails to any cc users.
-	 *
-	 * @param array $recipients
-	 * @param GetPaid_Notification_Email $email
-	 */
-	public function filter_email_recipients( $recipients, $email ) {
-
-		if ( ! $email->is_admin_email() ) {
-			$cc   = $email->object->get_email_cc();
-			$cc_2 = get_user_meta( $email->object->get_user_id(), '_wpinv_email_cc', true );
-
-			if ( ! empty( $cc ) ) {
-				$cc = array_map( 'sanitize_email', wpinv_parse_list( $cc ) );
-				$recipients = array_filter( array_unique( array_merge( $recipients, $cc ) ) );
-			}
-
-			if ( ! empty( $cc_2 ) ) {
-				$cc_2 = array_map( 'sanitize_email', wpinv_parse_list( $cc_2 ) );
-				$recipients = array_filter( array_unique( array_merge( $recipients, $cc_2 ) ) );
-			}
-		}
-
-		return $recipients;
-
-	}
-
-	/**
-	 * Sends a new invoice notification.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 */
-	public function new_invoice( $invoice ) {
-
-		// Only send this email for invoices created via the admin page.
-		if ( ! $invoice->is_type( 'invoice' ) || $invoice->is_paid() || $this->is_payment_form_invoice( $invoice->get_id() ) ) {
-			return;
-		}
-
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
-		$recipient = wpinv_get_admin_email();
-
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
-
-	}
-
-	/**
-	 * Sends a cancelled invoice notification.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 */
-	public function cancelled_invoice( $invoice ) {
-
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
-		$recipient = $invoice->get_email();
-
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
-	}
-
-	/**
-	 * Sends a failed invoice notification.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 */
-	public function failed_invoice( $invoice ) {
-
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
-		$recipient = wpinv_get_admin_email();
-
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
-
-	}
-
-	/**
-	 * Sends a notification whenever an invoice is put on hold.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 */
-	public function onhold_invoice( $invoice ) {
-
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
-		$recipient = $invoice->get_email();
-
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
-
-	}
-
-	/**
-	 * Sends a notification whenever an invoice is marked as processing payment.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 */
-	public function processing_invoice( $invoice ) {
-
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
-		$recipient = $invoice->get_email();
-
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
-
-	}
-
-	/**
-	 * Sends a notification whenever an invoice is paid.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 */
-	public function completed_invoice( $invoice ) {
-
-		// (Maybe) abort if it is a renewal invoice.
-		if ( $invoice->is_renewal() && ! wpinv_get_option( 'email_completed_invoice_renewal_active', false ) ) {
-			return;
-		}
-
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
-		$recipient = $invoice->get_email();
-
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
-
-	}
+    /**
+     * The array of invoice email actions.
+     *
+     * @param array
+     */
+    public $invoice_actions;
+
+    /**
+     * Class constructor
+     *
+     */
+    public function __construct() {
+
+        $this->invoice_actions = apply_filters(
+            'getpaid_notification_email_invoice_triggers',
+            array(
+                'getpaid_new_invoice'                   => array( 'new_invoice', 'user_invoice' ),
+                'getpaid_invoice_status_wpi-cancelled'  => 'cancelled_invoice',
+                'getpaid_invoice_status_wpi-failed'     => 'failed_invoice',
+                'getpaid_invoice_status_wpi-onhold'     => 'onhold_invoice',
+                'getpaid_invoice_status_wpi-processing' => 'processing_invoice',
+                'getpaid_invoice_status_publish'        => 'completed_invoice',
+                'getpaid_invoice_status_wpi-renewal'    => 'completed_invoice',
+                'getpaid_invoice_status_wpi-refunded'   => 'refunded_invoice',
+                'getpaid_new_customer_note'             => 'user_note',
+                'getpaid_daily_maintenance'             => 'overdue',
+            )
+        );
+
+        $this->init_hooks();
+
+    }
+
+    /**
+     * Registers email hooks.
+     */
+    public function init_hooks() {
+
+        add_filter( 'getpaid_get_email_merge_tags', array( $this, 'invoice_merge_tags' ), 10, 2 );
+        add_filter( 'getpaid_invoice_email_recipients', array( $this, 'filter_email_recipients' ), 10, 2 );
+
+        foreach ( $this->invoice_actions as $hook => $email_type ) {
+            $this->init_email_type_hook( $hook, $email_type );
+        }
+    }
+
+    /**
+     * Registers an email hook for an invoice action.
+     *
+     * @param string $hook
+     * @param string|array $email_type
+     */
+    public function init_email_type_hook( $hook, $email_type ) {
+
+        $email_type = wpinv_parse_list( $email_type );
+
+        foreach ( $email_type as $type ) {
+
+            $email = new GetPaid_Notification_Email( $type );
+
+            // Abort if it is not active.
+            if ( ! $email->is_active() ) {
+                continue;
+            }
+
+            if ( method_exists( $this, $type ) ) {
+                add_action( $hook, array( $this, $type ), 100, 2 );
+                continue;
+            }
+
+            do_action( 'getpaid_invoice_init_email_type_hook', $type, $hook );
+        }
+
+    }
+
+    /**
+     * Filters invoice merge tags.
+     *
+     * @param array $merge_tags
+     * @param mixed|WPInv_Invoice|WPInv_Subscription $object
+     */
+    public function invoice_merge_tags( $merge_tags, $object ) {
+
+        if ( is_a( $object, 'WPInv_Invoice' ) ) {
+            return array_merge(
+                $merge_tags,
+                $this->get_invoice_merge_tags( $object )
+            );
+        }
+
+        if ( is_a( $object, 'WPInv_Subscription' ) ) {
+            return array_merge(
+                $merge_tags,
+                $this->get_invoice_merge_tags( $object->get_parent_payment() )
+            );
+        }
+
+        return $merge_tags;
+
+    }
+
+    /**
+     * Generates invoice merge tags.
+     *
+     * @param WPInv_Invoice $invoice
+     * @return array
+     */
+    public function get_invoice_merge_tags( $invoice ) {
+
+        // Abort if it does not exist.
+        if ( ! $invoice->get_id() ) {
+            return array();
+        }
+
+        $due_date   = $invoice->get_due_date();
+        $due_date   = empty( $due_date ) ? time() + MINUTE_IN_SECONDS : strtotime( $due_date ) + ( (int) get_option( 'gmt_offset' ) * HOUR_IN_SECONDS );
+        $merge_tags = 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_currency}'     => sanitize_text_field( $invoice->get_currency() ),
+            '{invoice_total}'        => sanitize_text_field( wpinv_price( $invoice->get_total(), $invoice->get_currency() ) ),
+            '{invoice_link}'         => esc_url( $invoice->get_view_url() ),
+            '{invoice_pay_link}'     => esc_url( $invoice->get_checkout_payment_url() ),
+            '{invoice_receipt_link}' => esc_url( $invoice->get_receipt_url() ),
+            '{invoice_date}'         => getpaid_format_date_value( $invoice->get_date_created() ),
+            '{invoice_due_date}'     => getpaid_format_date_value( $invoice->get_due_date(), __( 'on receipt', 'invoicing' ) ),
+            '{invoice_quote}'        => sanitize_text_field( strtolower( $invoice->get_label() ) ),
+            '{invoice_label}'        => sanitize_text_field( ucfirst( $invoice->get_label() ) ),
+            '{invoice_description}'  => wp_kses_post( $invoice->get_description() ),
+            '{subscription_name}'    => wp_kses_post( $invoice->get_subscription_name() ),
+            '{is_was}'               => $due_date < time() ? __( 'was', 'invoicing' ) : __( 'is', 'invoicing' ),
+        );
+
+        $payment_form_data = $invoice->get_meta( 'payment_form_data', true );
+
+        if ( is_array( $payment_form_data ) ) {
+
+            foreach ( $payment_form_data as $label => $value ) {
+
+                $label = preg_replace( '/[^a-z0-9]+/', '_', strtolower( $label ) );
+                $value = is_array( $value ) ? implode( ', ', $value ) : $value;
+
+                if ( is_scalar( $value ) ) {
+                    $merge_tags[ "{{$label}}" ] = wp_kses_post( $value );
+                }
+            }
+        }
+
+        return apply_filters( 'getpaid_invoice_email_merge_tags', $merge_tags, $invoice );
+    }
 
-	/**
-	 * Sends a notification whenever an invoice is refunded.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 */
-	public function refunded_invoice( $invoice ) {
-
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
-		$recipient = $invoice->get_email();
-
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
-
-	}
+    /**
+     * Helper function to send an email.
+     *
+     * @param WPInv_Invoice $invoice
+     * @param GetPaid_Notification_Email $email
+     * @param string $type
+     * @param string|array $recipients
+     * @param array $extra_args Extra template args.
+     */
+    public function send_email( $invoice, $email, $type, $recipients, $extra_args = array() ) {
 
-	/**
-	 * Notifies a user about new invoices
-	 *
-	 * @param WPInv_Invoice $invoice
-	 * @param bool $force
-	 */
-	public function user_invoice( $invoice, $force = false ) {
+        do_action( 'getpaid_before_send_invoice_notification', $type, $invoice, $email );
 
-		if ( ! $force && ! empty( $GLOBALS['wpinv_skip_invoice_notification'] ) ) {
-			return;
-		}
-
-		// Only send this email for invoices created via the admin page.
-		if ( ! $invoice->is_type( 'invoice' ) || ( empty( $force ) && $invoice->is_paid() ) || ( empty( $force ) && $this->is_payment_form_invoice( $invoice->get_id() ) ) ) {
-			return;
-		}
-
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
-		$recipient = $invoice->get_email();
-
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
-
-	}
-
-	/**
-	 * Checks if an invoice is a payment form invoice.
-	 *
-	 * @param int $invoice
-	 * @return bool
-	 */
-	public function is_payment_form_invoice( $invoice ) {
-		$created_via             = get_post_meta( $invoice, 'wpinv_created_via', true );
-		$is_payment_form_invoice = 'payment_form' === $created_via || 'geodirectory' === $created_via;
-		$is_payment_form_invoice = apply_filters( 'getpaid_invoice_notifications_is_payment_form_invoice', $is_payment_form_invoice, $invoice );
-		return empty( $_GET['getpaid-admin-action'] ) && $is_payment_form_invoice;
-	}
-
-	/**
-	 * Notifies admin about new invoice notes
-	 *
-	 * @param WPInv_Invoice $invoice
-	 * @param string $note
-	 */
-	public function user_note( $invoice, $note ) {
-
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
-		$recipient = $invoice->get_email();
-
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient, array( 'customer_note' => $note ) );
-
-	}
-
-	/**
-	 * (Force) Sends overdue notices.
-	 *
-	 * @param WPInv_Invoice $invoice
-	 */
-	public function force_send_overdue_notice( $invoice ) {
-		$email = new GetPaid_Notification_Email( 'overdue', $invoice );
-		return $this->send_email( $invoice, $email, 'overdue', $invoice->get_email() );
-	}
-
-	/**
-	 * Sends overdue notices.
-	 *
-	 * @TODO: Create an invoices query class.
-	 */
-	public function overdue() {
-		global $wpdb;
-
-		$email = new GetPaid_Notification_Email( __FUNCTION__ );
-
-		// Fetch reminder days.
-		$reminder_days = array_unique( wp_parse_id_list( $email->get_option( 'days' ) ) );
-
-		// Abort if non is set.
-		if ( empty( $reminder_days ) ) {
-			return;
-		}
-
-		// Retrieve date query.
-		$date_query = $this->get_date_query( $reminder_days );
-
-		// Invoices table.
-		$table = $wpdb->prefix . 'getpaid_invoices';
-
-		// Fetch invoices.
-		$invoices  = $wpdb->get_col(
-			"SELECT posts.ID FROM $wpdb->posts as posts
+        $skip = $invoice->is_free() && wpinv_get_option( 'skip_email_free_invoice' );
+        if ( apply_filters( 'getpaid_skip_invoice_email', $skip, $type, $invoice ) ) {
+            return;
+        }
+
+        $mailer     = new GetPaid_Notification_Email_Sender();
+        $merge_tags = $email->get_merge_tags();
+
+        $result = $mailer->send(
+            apply_filters( 'getpaid_invoice_email_recipients', wpinv_parse_list( $recipients ), $email ),
+            $email->add_merge_tags( $email->get_subject(), $merge_tags ),
+            $email->get_content( $merge_tags, $extra_args ),
+            $email->get_attachments()
+        );
+
+        // Maybe send a copy to the admin.
+        if ( $email->include_admin_bcc() ) {
+            $mailer->send(
+                wpinv_get_admin_email(),
+                $email->add_merge_tags( $email->get_subject() . __( ' - ADMIN BCC COPY', 'invoicing' ), $merge_tags ),
+                $email->get_content( $merge_tags ),
+                $email->get_attachments()
+            );
+        }
+
+        if ( $result ) {
+            $invoice->add_system_note(
+                sprintf(
+                    // translators: %1 is the email type, %2 is the invoice recipient.
+                    __( 'Successfully sent %1$s notification email to %2$s.', 'invoicing' ),
+                    sanitize_key( $type ),
+                    $email->is_admin_email() ? __( 'admin', 'invoicing' ) : __( 'the customer', 'invoicing' )
+                )
+            );
+        } else {
+            $invoice->add_system_note(
+                sprintf(
+                    // translators: %1 is the email type, %2 is the invoice recipient.
+                    __( 'Failed sending %1$s notification email to %2$s.', 'invoicing' ),
+                    sanitize_key( $type ),
+                    $email->is_admin_email() ? __( 'admin', 'invoicing' ) : __( 'the customer', 'invoicing' )
+                )
+            );
+        }
+
+        do_action( 'getpaid_after_send_invoice_notification', $type, $invoice, $email );
+
+        return $result;
+    }
+
+    /**
+     * Also send emails to any cc users.
+     *
+     * @param array $recipients
+     * @param GetPaid_Notification_Email $email
+     */
+    public function filter_email_recipients( $recipients, $email ) {
+
+        if ( ! $email->is_admin_email() ) {
+            $cc   = $email->object->get_email_cc();
+            $cc_2 = get_user_meta( $email->object->get_user_id(), '_wpinv_email_cc', true );
+
+            if ( ! empty( $cc ) ) {
+                $cc = array_map( 'sanitize_email', wpinv_parse_list( $cc ) );
+                $recipients = array_filter( array_unique( array_merge( $recipients, $cc ) ) );
+            }
+
+            if ( ! empty( $cc_2 ) ) {
+                $cc_2 = array_map( 'sanitize_email', wpinv_parse_list( $cc_2 ) );
+                $recipients = array_filter( array_unique( array_merge( $recipients, $cc_2 ) ) );
+            }
+        }
+
+        return $recipients;
+
+    }
+
+    /**
+     * Sends a new invoice notification.
+     *
+     * @param WPInv_Invoice $invoice
+     */
+    public function new_invoice( $invoice ) {
+
+        // Only send this email for invoices created via the admin page.
+        if ( ! $invoice->is_type( 'invoice' ) || $invoice->is_paid() || $this->is_payment_form_invoice( $invoice->get_id() ) ) {
+            return;
+        }
+
+        $email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+        $recipient = wpinv_get_admin_email();
+
+        return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+
+    }
+
+    /**
+     * Sends a cancelled invoice notification.
+     *
+     * @param WPInv_Invoice $invoice
+     */
+    public function cancelled_invoice( $invoice ) {
+
+        $email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+        $recipient = $invoice->get_email();
+
+        return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+    }
+
+    /**
+     * Sends a failed invoice notification.
+     *
+     * @param WPInv_Invoice $invoice
+     */
+    public function failed_invoice( $invoice ) {
+
+        $email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+        $recipient = wpinv_get_admin_email();
+
+        return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+
+    }
+
+    /**
+     * Sends a notification whenever an invoice is put on hold.
+     *
+     * @param WPInv_Invoice $invoice
+     */
+    public function onhold_invoice( $invoice ) {
+
+        $email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+        $recipient = $invoice->get_email();
+
+        return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+
+    }
+
+    /**
+     * Sends a notification whenever an invoice is marked as processing payment.
+     *
+     * @param WPInv_Invoice $invoice
+     */
+    public function processing_invoice( $invoice ) {
+
+        $email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+        $recipient = $invoice->get_email();
+
+        return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+
+    }
+
+    /**
+     * Sends a notification whenever an invoice is paid.
+     *
+     * @param WPInv_Invoice $invoice
+     */
+    public function completed_invoice( $invoice ) {
+
+        // (Maybe) abort if it is a renewal invoice.
+        if ( $invoice->is_renewal() && ! wpinv_get_option( 'email_completed_invoice_renewal_active', false ) ) {
+            return;
+        }
+
+        $email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+        $recipient = $invoice->get_email();
+
+        return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+
+    }
+
+    /**
+     * Sends a notification whenever an invoice is refunded.
+     *
+     * @param WPInv_Invoice $invoice
+     */
+    public function refunded_invoice( $invoice ) {
+
+        $email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+        $recipient = $invoice->get_email();
+
+        return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+
+    }
+
+    /**
+     * Notifies a user about new invoices
+     *
+     * @param WPInv_Invoice $invoice
+     * @param bool $force
+     */
+    public function user_invoice( $invoice, $force = false ) {
+
+        if ( ! $force && ! empty( $GLOBALS['wpinv_skip_invoice_notification'] ) ) {
+            return;
+        }
+
+        // Only send this email for invoices created via the admin page.
+        if ( ! $invoice->is_type( 'invoice' ) || ( empty( $force ) && $invoice->is_paid() ) || ( empty( $force ) && $this->is_payment_form_invoice( $invoice->get_id() ) ) ) {
+            return;
+        }
+
+        $email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+        $recipient = $invoice->get_email();
+
+        return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+
+    }
+
+    /**
+     * Checks if an invoice is a payment form invoice.
+     *
+     * @param int $invoice
+     * @return bool
+     */
+    public function is_payment_form_invoice( $invoice ) {
+        $created_via             = get_post_meta( $invoice, 'wpinv_created_via', true );
+        $is_payment_form_invoice = 'payment_form' === $created_via || 'geodirectory' === $created_via;
+        $is_payment_form_invoice = apply_filters( 'getpaid_invoice_notifications_is_payment_form_invoice', $is_payment_form_invoice, $invoice );
+        return empty( $_GET['getpaid-admin-action'] ) && $is_payment_form_invoice;
+    }
+
+    /**
+     * Notifies admin about new invoice notes
+     *
+     * @param WPInv_Invoice $invoice
+     * @param string $note
+     */
+    public function user_note( $invoice, $note ) {
+
+        $email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+        $recipient = $invoice->get_email();
+
+        return $this->send_email( $invoice, $email, __FUNCTION__, $recipient, array( 'customer_note' => $note ) );
+
+    }
+
+    /**
+     * (Force) Sends overdue notices.
+     *
+     * @param WPInv_Invoice $invoice
+     */
+    public function force_send_overdue_notice( $invoice ) {
+        $email = new GetPaid_Notification_Email( 'overdue', $invoice );
+        return $this->send_email( $invoice, $email, 'overdue', $invoice->get_email() );
+    }
+
+    /**
+     * Sends overdue notices.
+     *
+     * @TODO: Create an invoices query class.
+     */
+    public function overdue() {
+        global $wpdb;
+
+        $email = new GetPaid_Notification_Email( __FUNCTION__ );
+
+        // Fetch reminder days.
+        $reminder_days = array_unique( wp_parse_id_list( $email->get_option( 'days' ) ) );
+
+        // Abort if non is set.
+        if ( empty( $reminder_days ) ) {
+            return;
+        }
+
+        // Retrieve date query.
+        $date_query = $this->get_date_query( $reminder_days );
+
+        // Invoices table.
+        $table = $wpdb->prefix . 'getpaid_invoices';
+
+        // Fetch invoices.
+        $invoices  = $wpdb->get_col(
+            "SELECT posts.ID FROM $wpdb->posts as posts
 			LEFT JOIN $table as invoices ON invoices.post_id = posts.ID
 			WHERE posts.post_type = 'wpi_invoice' AND posts.post_status = 'wpi-pending' $date_query"
         );
 
-		foreach ( $invoices as $invoice ) {
+        foreach ( $invoices as $invoice ) {
 
-			// Only send this email for invoices created via the admin page.
-			if ( ! $this->is_payment_form_invoice( $invoice ) ) {
-				$invoice       = new WPInv_Invoice( $invoice );
-				$email->object = $invoice;
+            // Only send this email for invoices created via the admin page.
+            if ( ! $this->is_payment_form_invoice( $invoice ) ) {
+                $invoice       = new WPInv_Invoice( $invoice );
+                $email->object = $invoice;
 
-				if ( $invoice->needs_payment() && ! $invoice->is_renewal() ) {
-					$this->send_email( $invoice, $email, __FUNCTION__, $invoice->get_email() );
-				}
-			}
-		}
+                if ( $invoice->needs_payment() && ! $invoice->is_renewal() ) {
+                    $this->send_email( $invoice, $email, __FUNCTION__, $invoice->get_email() );
+                }
+            }
+        }
 
-	}
+    }
 
-	/**
-	 * Calculates the date query for an invoices query
-	 *
-	 * @param array $reminder_days
-	 * @return string
-	 */
-	public function get_date_query( $reminder_days ) {
+    /**
+     * Calculates the date query for an invoices query
+     *
+     * @param array $reminder_days
+     * @return string
+     */
+    public function get_date_query( $reminder_days ) {
 
-		$date_query = array(
-			'relation' => 'OR',
-		);
+        $date_query = array(
+            'relation' => 'OR',
+        );
 
-		foreach ( $reminder_days as $days ) {
-			$date = date_parse( date( 'Y-m-d', strtotime( "-$days days", current_time( 'timestamp' ) ) ) );
+        foreach ( $reminder_days as $days ) {
+            $date = date_parse( date( 'Y-m-d', strtotime( "-$days days", current_time( 'timestamp' ) ) ) );
 
-			$date_query[] = array(
-				'year'  => $date['year'],
-				'month' => $date['month'],
-				'day'   => $date['day'],
-			);
+            $date_query[] = array(
+                'year'  => $date['year'],
+                'month' => $date['month'],
+                'day'   => $date['day'],
+            );
 
-		}
+        }
 
-		$date_query = new WP_Date_Query( $date_query, 'invoices.due_date' );
+        $date_query = new WP_Date_Query( $date_query, 'invoices.due_date' );
 
-		return $date_query->get_sql();
+        return $date_query->get_sql();
 
-	}
+    }
 
 }

Spacing +127 added lines, -127 removed lines

@@ -4,7 +4,7 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * This class handles invoice notificaiton emails.
@@ -28,7 +28,7 @@ 
 		$this->invoice_actions = apply_filters(
 			'getpaid_notification_email_invoice_triggers',
 			array(
-				'getpaid_new_invoice'                   => array( 'new_invoice', 'user_invoice' ),
+				'getpaid_new_invoice'                   => array('new_invoice', 'user_invoice'),
 				'getpaid_invoice_status_wpi-cancelled'  => 'cancelled_invoice',
 				'getpaid_invoice_status_wpi-failed'     => 'failed_invoice',
 				'getpaid_invoice_status_wpi-onhold'     => 'onhold_invoice',
@@ -50,11 +50,11 @@ 
 	 */
 	public function init_hooks() {
 
-		add_filter( 'getpaid_get_email_merge_tags', array( $this, 'invoice_merge_tags' ), 10, 2 );
-		add_filter( 'getpaid_invoice_email_recipients', array( $this, 'filter_email_recipients' ), 10, 2 );
+		add_filter('getpaid_get_email_merge_tags', array($this, 'invoice_merge_tags'), 10, 2);
+		add_filter('getpaid_invoice_email_recipients', array($this, 'filter_email_recipients'), 10, 2);
 
-		foreach ( $this->invoice_actions as $hook => $email_type ) {
-			$this->init_email_type_hook( $hook, $email_type );
+		foreach ($this->invoice_actions as $hook => $email_type) {
+			$this->init_email_type_hook($hook, $email_type);
 		}
 	}
 
@@ -64,25 +64,25 @@ 
 	 * @param string $hook
 	 * @param string|array $email_type
 	 */
-	public function init_email_type_hook( $hook, $email_type ) {
+	public function init_email_type_hook($hook, $email_type) {
 
-		$email_type = wpinv_parse_list( $email_type );
+		$email_type = wpinv_parse_list($email_type);
 
-		foreach ( $email_type as $type ) {
+		foreach ($email_type as $type) {
 
-			$email = new GetPaid_Notification_Email( $type );
+			$email = new GetPaid_Notification_Email($type);
 
 			// Abort if it is not active.
-			if ( ! $email->is_active() ) {
+			if (!$email->is_active()) {
 				continue;
 			}
 
-			if ( method_exists( $this, $type ) ) {
-				add_action( $hook, array( $this, $type ), 100, 2 );
+			if (method_exists($this, $type)) {
+				add_action($hook, array($this, $type), 100, 2);
 				continue;
 			}
 
-			do_action( 'getpaid_invoice_init_email_type_hook', $type, $hook );
+			do_action('getpaid_invoice_init_email_type_hook', $type, $hook);
 		}
 
 	}
@@ -93,19 +93,19 @@ 
 	 * @param array $merge_tags
 	 * @param mixed|WPInv_Invoice|WPInv_Subscription $object
 	 */
-	public function invoice_merge_tags( $merge_tags, $object ) {
+	public function invoice_merge_tags($merge_tags, $object) {
 
-		if ( is_a( $object, 'WPInv_Invoice' ) ) {
+		if (is_a($object, 'WPInv_Invoice')) {
 			return array_merge(
 				$merge_tags,
-				$this->get_invoice_merge_tags( $object )
+				$this->get_invoice_merge_tags($object)
 			);
 		}
 
-		if ( is_a( $object, 'WPInv_Subscription' ) ) {
+		if (is_a($object, 'WPInv_Subscription')) {
 			return array_merge(
 				$merge_tags,
-				$this->get_invoice_merge_tags( $object->get_parent_payment() )
+				$this->get_invoice_merge_tags($object->get_parent_payment())
 			);
 		}
 
@@ -119,52 +119,52 @@ 
 	 * @param WPInv_Invoice $invoice
 	 * @return array
 	 */
-	public function get_invoice_merge_tags( $invoice ) {
+	public function get_invoice_merge_tags($invoice) {
 
 		// Abort if it does not exist.
-		if ( ! $invoice->get_id() ) {
+		if (!$invoice->get_id()) {
 			return array();
 		}
 
 		$due_date   = $invoice->get_due_date();
-		$due_date   = empty( $due_date ) ? time() + MINUTE_IN_SECONDS : strtotime( $due_date ) + ( (int) get_option( 'gmt_offset' ) * HOUR_IN_SECONDS );
+		$due_date   = empty($due_date) ? time() + MINUTE_IN_SECONDS : strtotime($due_date) + ((int) get_option('gmt_offset') * HOUR_IN_SECONDS);
 		$merge_tags = 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_currency}'     => sanitize_text_field( $invoice->get_currency() ),
-			'{invoice_total}'        => sanitize_text_field( wpinv_price( $invoice->get_total(), $invoice->get_currency() ) ),
-			'{invoice_link}'         => esc_url( $invoice->get_view_url() ),
-			'{invoice_pay_link}'     => esc_url( $invoice->get_checkout_payment_url() ),
-			'{invoice_receipt_link}' => esc_url( $invoice->get_receipt_url() ),
-			'{invoice_date}'         => getpaid_format_date_value( $invoice->get_date_created() ),
-			'{invoice_due_date}'     => getpaid_format_date_value( $invoice->get_due_date(), __( 'on receipt', 'invoicing' ) ),
-			'{invoice_quote}'        => sanitize_text_field( strtolower( $invoice->get_label() ) ),
-			'{invoice_label}'        => sanitize_text_field( ucfirst( $invoice->get_label() ) ),
-			'{invoice_description}'  => wp_kses_post( $invoice->get_description() ),
-			'{subscription_name}'    => wp_kses_post( $invoice->get_subscription_name() ),
-			'{is_was}'               => $due_date < time() ? __( 'was', 'invoicing' ) : __( 'is', 'invoicing' ),
+			'{name}'                 => sanitize_text_field($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($invoice->get_number()),
+			'{invoice_currency}'     => sanitize_text_field($invoice->get_currency()),
+			'{invoice_total}'        => sanitize_text_field(wpinv_price($invoice->get_total(), $invoice->get_currency())),
+			'{invoice_link}'         => esc_url($invoice->get_view_url()),
+			'{invoice_pay_link}'     => esc_url($invoice->get_checkout_payment_url()),
+			'{invoice_receipt_link}' => esc_url($invoice->get_receipt_url()),
+			'{invoice_date}'         => getpaid_format_date_value($invoice->get_date_created()),
+			'{invoice_due_date}'     => getpaid_format_date_value($invoice->get_due_date(), __('on receipt', 'invoicing')),
+			'{invoice_quote}'        => sanitize_text_field(strtolower($invoice->get_label())),
+			'{invoice_label}'        => sanitize_text_field(ucfirst($invoice->get_label())),
+			'{invoice_description}'  => wp_kses_post($invoice->get_description()),
+			'{subscription_name}'    => wp_kses_post($invoice->get_subscription_name()),
+			'{is_was}'               => $due_date < time() ? __('was', 'invoicing') : __('is', 'invoicing'),
 		);
 
-		$payment_form_data = $invoice->get_meta( 'payment_form_data', true );
+		$payment_form_data = $invoice->get_meta('payment_form_data', true);
 
-		if ( is_array( $payment_form_data ) ) {
+		if (is_array($payment_form_data)) {
 
-			foreach ( $payment_form_data as $label => $value ) {
+			foreach ($payment_form_data as $label => $value) {
 
-				$label = preg_replace( '/[^a-z0-9]+/', '_', strtolower( $label ) );
-				$value = is_array( $value ) ? implode( ', ', $value ) : $value;
+				$label = preg_replace('/[^a-z0-9]+/', '_', strtolower($label));
+				$value = is_array($value) ? implode(', ', $value) : $value;
 
-				if ( is_scalar( $value ) ) {
-					$merge_tags[ "{{$label}}" ] = wp_kses_post( $value );
+				if (is_scalar($value)) {
+					$merge_tags["{{$label}}"] = wp_kses_post($value);
 				}
 			}
 		}
 
-		return apply_filters( 'getpaid_invoice_email_merge_tags', $merge_tags, $invoice );
+		return apply_filters('getpaid_invoice_email_merge_tags', $merge_tags, $invoice);
 	}
 
 	/**
@@ -176,12 +176,12 @@ 
 	 * @param string|array $recipients
 	 * @param array $extra_args Extra template args.
 	 */
-	public function send_email( $invoice, $email, $type, $recipients, $extra_args = array() ) {
+	public function send_email($invoice, $email, $type, $recipients, $extra_args = array()) {
 
-		do_action( 'getpaid_before_send_invoice_notification', $type, $invoice, $email );
+		do_action('getpaid_before_send_invoice_notification', $type, $invoice, $email);
 
-		$skip = $invoice->is_free() && wpinv_get_option( 'skip_email_free_invoice' );
-		if ( apply_filters( 'getpaid_skip_invoice_email', $skip, $type, $invoice ) ) {
+		$skip = $invoice->is_free() && wpinv_get_option('skip_email_free_invoice');
+		if (apply_filters('getpaid_skip_invoice_email', $skip, $type, $invoice)) {
 			return;
 		}
 
@@ -189,43 +189,43 @@ 
 		$merge_tags = $email->get_merge_tags();
 
 		$result = $mailer->send(
-			apply_filters( 'getpaid_invoice_email_recipients', wpinv_parse_list( $recipients ), $email ),
-			$email->add_merge_tags( $email->get_subject(), $merge_tags ),
-			$email->get_content( $merge_tags, $extra_args ),
+			apply_filters('getpaid_invoice_email_recipients', wpinv_parse_list($recipients), $email),
+			$email->add_merge_tags($email->get_subject(), $merge_tags),
+			$email->get_content($merge_tags, $extra_args),
 			$email->get_attachments()
 		);
 
 		// Maybe send a copy to the admin.
-		if ( $email->include_admin_bcc() ) {
+		if ($email->include_admin_bcc()) {
 			$mailer->send(
 				wpinv_get_admin_email(),
-				$email->add_merge_tags( $email->get_subject() . __( ' - ADMIN BCC COPY', 'invoicing' ), $merge_tags ),
-				$email->get_content( $merge_tags ),
+				$email->add_merge_tags($email->get_subject() . __(' - ADMIN BCC COPY', 'invoicing'), $merge_tags),
+				$email->get_content($merge_tags),
 				$email->get_attachments()
 			);
 		}
 
-		if ( $result ) {
+		if ($result) {
 			$invoice->add_system_note(
 				sprintf(
 					// translators: %1 is the email type, %2 is the invoice recipient.
-					__( 'Successfully sent %1$s notification email to %2$s.', 'invoicing' ),
-					sanitize_key( $type ),
-					$email->is_admin_email() ? __( 'admin', 'invoicing' ) : __( 'the customer', 'invoicing' )
+					__('Successfully sent %1$s notification email to %2$s.', 'invoicing'),
+					sanitize_key($type),
+					$email->is_admin_email() ? __('admin', 'invoicing') : __('the customer', 'invoicing')
 				)
 			);
 		} else {
 			$invoice->add_system_note(
 				sprintf(
 					// translators: %1 is the email type, %2 is the invoice recipient.
-					__( 'Failed sending %1$s notification email to %2$s.', 'invoicing' ),
-					sanitize_key( $type ),
-					$email->is_admin_email() ? __( 'admin', 'invoicing' ) : __( 'the customer', 'invoicing' )
+					__('Failed sending %1$s notification email to %2$s.', 'invoicing'),
+					sanitize_key($type),
+					$email->is_admin_email() ? __('admin', 'invoicing') : __('the customer', 'invoicing')
 				)
 			);
 		}
 
-		do_action( 'getpaid_after_send_invoice_notification', $type, $invoice, $email );
+		do_action('getpaid_after_send_invoice_notification', $type, $invoice, $email);
 
 		return $result;
 	}
@@ -236,20 +236,20 @@ 
 	 * @param array $recipients
 	 * @param GetPaid_Notification_Email $email
 	 */
-	public function filter_email_recipients( $recipients, $email ) {
+	public function filter_email_recipients($recipients, $email) {
 
-		if ( ! $email->is_admin_email() ) {
+		if (!$email->is_admin_email()) {
 			$cc   = $email->object->get_email_cc();
-			$cc_2 = get_user_meta( $email->object->get_user_id(), '_wpinv_email_cc', true );
+			$cc_2 = get_user_meta($email->object->get_user_id(), '_wpinv_email_cc', true);
 
-			if ( ! empty( $cc ) ) {
-				$cc = array_map( 'sanitize_email', wpinv_parse_list( $cc ) );
-				$recipients = array_filter( array_unique( array_merge( $recipients, $cc ) ) );
+			if (!empty($cc)) {
+				$cc = array_map('sanitize_email', wpinv_parse_list($cc));
+				$recipients = array_filter(array_unique(array_merge($recipients, $cc)));
 			}
 
-			if ( ! empty( $cc_2 ) ) {
-				$cc_2 = array_map( 'sanitize_email', wpinv_parse_list( $cc_2 ) );
-				$recipients = array_filter( array_unique( array_merge( $recipients, $cc_2 ) ) );
+			if (!empty($cc_2)) {
+				$cc_2 = array_map('sanitize_email', wpinv_parse_list($cc_2));
+				$recipients = array_filter(array_unique(array_merge($recipients, $cc_2)));
 			}
 		}
 
@@ -262,17 +262,17 @@ 
 	 *
 	 * @param WPInv_Invoice $invoice
 	 */
-	public function new_invoice( $invoice ) {
+	public function new_invoice($invoice) {
 
 		// Only send this email for invoices created via the admin page.
-		if ( ! $invoice->is_type( 'invoice' ) || $invoice->is_paid() || $this->is_payment_form_invoice( $invoice->get_id() ) ) {
+		if (!$invoice->is_type('invoice') || $invoice->is_paid() || $this->is_payment_form_invoice($invoice->get_id())) {
 			return;
 		}
 
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+		$email     = new GetPaid_Notification_Email(__FUNCTION__, $invoice);
 		$recipient = wpinv_get_admin_email();
 
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+		return $this->send_email($invoice, $email, __FUNCTION__, $recipient);
 
 	}
 
@@ -281,12 +281,12 @@ 
 	 *
 	 * @param WPInv_Invoice $invoice
 	 */
-	public function cancelled_invoice( $invoice ) {
+	public function cancelled_invoice($invoice) {
 
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+		$email     = new GetPaid_Notification_Email(__FUNCTION__, $invoice);
 		$recipient = $invoice->get_email();
 
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+		return $this->send_email($invoice, $email, __FUNCTION__, $recipient);
 	}
 
 	/**
@@ -294,12 +294,12 @@ 
 	 *
 	 * @param WPInv_Invoice $invoice
 	 */
-	public function failed_invoice( $invoice ) {
+	public function failed_invoice($invoice) {
 
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+		$email     = new GetPaid_Notification_Email(__FUNCTION__, $invoice);
 		$recipient = wpinv_get_admin_email();
 
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+		return $this->send_email($invoice, $email, __FUNCTION__, $recipient);
 
 	}
 
@@ -308,12 +308,12 @@ 
 	 *
 	 * @param WPInv_Invoice $invoice
 	 */
-	public function onhold_invoice( $invoice ) {
+	public function onhold_invoice($invoice) {
 
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+		$email     = new GetPaid_Notification_Email(__FUNCTION__, $invoice);
 		$recipient = $invoice->get_email();
 
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+		return $this->send_email($invoice, $email, __FUNCTION__, $recipient);
 
 	}
 
@@ -322,12 +322,12 @@ 
 	 *
 	 * @param WPInv_Invoice $invoice
 	 */
-	public function processing_invoice( $invoice ) {
+	public function processing_invoice($invoice) {
 
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+		$email     = new GetPaid_Notification_Email(__FUNCTION__, $invoice);
 		$recipient = $invoice->get_email();
 
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+		return $this->send_email($invoice, $email, __FUNCTION__, $recipient);
 
 	}
 
@@ -336,17 +336,17 @@ 
 	 *
 	 * @param WPInv_Invoice $invoice
 	 */
-	public function completed_invoice( $invoice ) {
+	public function completed_invoice($invoice) {
 
 		// (Maybe) abort if it is a renewal invoice.
-		if ( $invoice->is_renewal() && ! wpinv_get_option( 'email_completed_invoice_renewal_active', false ) ) {
+		if ($invoice->is_renewal() && !wpinv_get_option('email_completed_invoice_renewal_active', false)) {
 			return;
 		}
 
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+		$email     = new GetPaid_Notification_Email(__FUNCTION__, $invoice);
 		$recipient = $invoice->get_email();
 
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+		return $this->send_email($invoice, $email, __FUNCTION__, $recipient);
 
 	}
 
@@ -355,12 +355,12 @@ 
 	 *
 	 * @param WPInv_Invoice $invoice
 	 */
-	public function refunded_invoice( $invoice ) {
+	public function refunded_invoice($invoice) {
 
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+		$email     = new GetPaid_Notification_Email(__FUNCTION__, $invoice);
 		$recipient = $invoice->get_email();
 
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+		return $this->send_email($invoice, $email, __FUNCTION__, $recipient);
 
 	}
 
@@ -370,21 +370,21 @@ 
 	 * @param WPInv_Invoice $invoice
 	 * @param bool $force
 	 */
-	public function user_invoice( $invoice, $force = false ) {
+	public function user_invoice($invoice, $force = false) {
 
-		if ( ! $force && ! empty( $GLOBALS['wpinv_skip_invoice_notification'] ) ) {
+		if (!$force && !empty($GLOBALS['wpinv_skip_invoice_notification'])) {
 			return;
 		}
 
 		// Only send this email for invoices created via the admin page.
-		if ( ! $invoice->is_type( 'invoice' ) || ( empty( $force ) && $invoice->is_paid() ) || ( empty( $force ) && $this->is_payment_form_invoice( $invoice->get_id() ) ) ) {
+		if (!$invoice->is_type('invoice') || (empty($force) && $invoice->is_paid()) || (empty($force) && $this->is_payment_form_invoice($invoice->get_id()))) {
 			return;
 		}
 
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+		$email     = new GetPaid_Notification_Email(__FUNCTION__, $invoice);
 		$recipient = $invoice->get_email();
 
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient );
+		return $this->send_email($invoice, $email, __FUNCTION__, $recipient);
 
 	}
 
@@ -394,11 +394,11 @@ 
 	 * @param int $invoice
 	 * @return bool
 	 */
-	public function is_payment_form_invoice( $invoice ) {
-		$created_via             = get_post_meta( $invoice, 'wpinv_created_via', true );
+	public function is_payment_form_invoice($invoice) {
+		$created_via             = get_post_meta($invoice, 'wpinv_created_via', true);
 		$is_payment_form_invoice = 'payment_form' === $created_via || 'geodirectory' === $created_via;
-		$is_payment_form_invoice = apply_filters( 'getpaid_invoice_notifications_is_payment_form_invoice', $is_payment_form_invoice, $invoice );
-		return empty( $_GET['getpaid-admin-action'] ) && $is_payment_form_invoice;
+		$is_payment_form_invoice = apply_filters('getpaid_invoice_notifications_is_payment_form_invoice', $is_payment_form_invoice, $invoice);
+		return empty($_GET['getpaid-admin-action']) && $is_payment_form_invoice;
 	}
 
 	/**
@@ -407,12 +407,12 @@ 
 	 * @param WPInv_Invoice $invoice
 	 * @param string $note
 	 */
-	public function user_note( $invoice, $note ) {
+	public function user_note($invoice, $note) {
 
-		$email     = new GetPaid_Notification_Email( __FUNCTION__, $invoice );
+		$email     = new GetPaid_Notification_Email(__FUNCTION__, $invoice);
 		$recipient = $invoice->get_email();
 
-		return $this->send_email( $invoice, $email, __FUNCTION__, $recipient, array( 'customer_note' => $note ) );
+		return $this->send_email($invoice, $email, __FUNCTION__, $recipient, array('customer_note' => $note));
 
 	}
 
@@ -421,9 +421,9 @@ 
 	 *
 	 * @param WPInv_Invoice $invoice
 	 */
-	public function force_send_overdue_notice( $invoice ) {
-		$email = new GetPaid_Notification_Email( 'overdue', $invoice );
-		return $this->send_email( $invoice, $email, 'overdue', $invoice->get_email() );
+	public function force_send_overdue_notice($invoice) {
+		$email = new GetPaid_Notification_Email('overdue', $invoice);
+		return $this->send_email($invoice, $email, 'overdue', $invoice->get_email());
 	}
 
 	/**
@@ -434,38 +434,38 @@ 
 	public function overdue() {
 		global $wpdb;
 
-		$email = new GetPaid_Notification_Email( __FUNCTION__ );
+		$email = new GetPaid_Notification_Email(__FUNCTION__);
 
 		// Fetch reminder days.
-		$reminder_days = array_unique( wp_parse_id_list( $email->get_option( 'days' ) ) );
+		$reminder_days = array_unique(wp_parse_id_list($email->get_option('days')));
 
 		// Abort if non is set.
-		if ( empty( $reminder_days ) ) {
+		if (empty($reminder_days)) {
 			return;
 		}
 
 		// Retrieve date query.
-		$date_query = $this->get_date_query( $reminder_days );
+		$date_query = $this->get_date_query($reminder_days);
 
 		// Invoices table.
 		$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 posts.post_type = 'wpi_invoice' AND posts.post_status = 'wpi-pending' $date_query"
         );
 
-		foreach ( $invoices as $invoice ) {
+		foreach ($invoices as $invoice) {
 
 			// Only send this email for invoices created via the admin page.
-			if ( ! $this->is_payment_form_invoice( $invoice ) ) {
-				$invoice       = new WPInv_Invoice( $invoice );
+			if (!$this->is_payment_form_invoice($invoice)) {
+				$invoice       = new WPInv_Invoice($invoice);
 				$email->object = $invoice;
 
-				if ( $invoice->needs_payment() && ! $invoice->is_renewal() ) {
-					$this->send_email( $invoice, $email, __FUNCTION__, $invoice->get_email() );
+				if ($invoice->needs_payment() && !$invoice->is_renewal()) {
+					$this->send_email($invoice, $email, __FUNCTION__, $invoice->get_email());
 				}
 			}
 		}
@@ -478,14 +478,14 @@ 
 	 * @param array $reminder_days
 	 * @return string
 	 */
-	public function get_date_query( $reminder_days ) {
+	public function get_date_query($reminder_days) {
 
 		$date_query = array(
 			'relation' => 'OR',
 		);
 
-		foreach ( $reminder_days as $days ) {
-			$date = date_parse( date( 'Y-m-d', strtotime( "-$days days", current_time( 'timestamp' ) ) ) );
+		foreach ($reminder_days as $days) {
+			$date = date_parse(date('Y-m-d', strtotime("-$days days", current_time('timestamp'))));
 
 			$date_query[] = array(
 				'year'  => $date['year'],
@@ -495,7 +495,7 @@ 
 
 		}
 
-		$date_query = new WP_Date_Query( $date_query, 'invoices.due_date' );
+		$date_query = new WP_Date_Query($date_query, 'invoices.due_date');
 
 		return $date_query->get_sql();