AyeCode / invoicing

includes/wpinv-template-functions.php

Braces +16 added lines, -11 removed lines

@@ -159,8 +159,9 @@ 
 
 	// Setup possible parts
 	$templates = array();
-	if ( isset( $name ) )
-		$templates[] = $slug . '-' . $name . '.php';
+	if ( isset( $name ) ) {
+			$templates[] = $slug . '-' . $name . '.php';
+	}
 	$templates[] = $slug . '.php';
 
 	// Allow template parts to be filtered
@@ -178,8 +179,9 @@ 
 	foreach ( (array)$template_names as $template_name ) {
 
 		// Continue if template is empty
-		if ( empty( $template_name ) )
-			continue;
+		if ( empty( $template_name ) ) {
+					continue;
+		}
 
 		// Trim off any slashes from the template name
 		$template_name = ltrim( $template_name, '/' );
@@ -198,8 +200,9 @@ 
 		}
 	}
 
-	if ( ( true == $load ) && ! empty( $located ) )
-		load_template( $located, $require_once );
+	if ( ( true == $load ) && ! empty( $located ) ) {
+			load_template( $located, $require_once );
+	}
 
 	return $located;
 }
@@ -281,8 +284,9 @@ 
 function wpinv_html_dropdown( $name = 'wpinv_discounts', $selected = 0, $status = '' ) {
     $args = array( 'nopaging' => true );
 
-    if ( ! empty( $status ) )
-        $args['post_status'] = $status;
+    if ( ! empty( $status ) ) {
+            $args['post_status'] = $status;
+    }
 
     $discounts = wpinv_get_discounts( $args );
     $options   = array();
@@ -1424,9 +1428,10 @@ 
 add_action( 'wpinv_cart_empty', 'wpinv_empty_checkout_cart' );
 
 function wpinv_update_cart_button() {
-    if ( !wpinv_item_quantities_enabled() )
-        return;
-?>
+    if ( !wpinv_item_quantities_enabled() ) {
+            return;
+    }
+    ?>
     <input type="submit" name="wpinv_update_cart_submit" class="wpinv-submit wpinv-no-js button" value="<?php _e( 'Update Cart', 'invoicing' ); ?>"/>
     <input type="hidden" name="wpi_action" value="update_cart"/>
 <?php

Indentation +104 added lines, -104 removed lines

@@ -103,29 +103,29 @@ 
 
 function wpinv_get_template( $template_name, $args = array(), $template_path = '', $default_path = '' ) {
     if ( ! empty( $args ) && is_array( $args ) ) {
-		extract( $args );
-	}
+        extract( $args );
+    }
 
-	$located = wpinv_locate_template( $template_name, $template_path, $default_path );
-	// Allow 3rd party plugin filter template file from their plugin.
-	$located = apply_filters( 'wpinv_get_template', $located, $template_name, $args, $template_path, $default_path );
+    $located = wpinv_locate_template( $template_name, $template_path, $default_path );
+    // Allow 3rd party plugin filter template file from their plugin.
+    $located = apply_filters( 'wpinv_get_template', $located, $template_name, $args, $template_path, $default_path );
 
-	if ( ! file_exists( $located ) ) {
+    if ( ! file_exists( $located ) ) {
         _doing_it_wrong( __FUNCTION__, sprintf( '<code>%s</code> does not exist.', $located ), '2.1' );
-		return;
-	}
+        return;
+    }
 
-	do_action( 'wpinv_before_template_part', $template_name, $template_path, $located, $args );
+    do_action( 'wpinv_before_template_part', $template_name, $template_path, $located, $args );
 
-	include( $located );
+    include( $located );
 
-	do_action( 'wpinv_after_template_part', $template_name, $template_path, $located, $args );
+    do_action( 'wpinv_after_template_part', $template_name, $template_path, $located, $args );
 }
 
 function wpinv_get_template_html( $template_name, $args = array(), $template_path = '', $default_path = '' ) {
-	ob_start();
-	wpinv_get_template( $template_name, $args, $template_path, $default_path );
-	return ob_get_clean();
+    ob_start();
+    wpinv_get_template( $template_name, $args, $template_path, $default_path );
+    return ob_get_clean();
 }
 
 function wpinv_locate_template( $template_name, $template_path = '', $default_path = '' ) {
@@ -155,126 +155,126 @@ 
 }
 
 function wpinv_get_template_part( $slug, $name = null, $load = true ) {
-	do_action( 'get_template_part_' . $slug, $slug, $name );
+    do_action( 'get_template_part_' . $slug, $slug, $name );
 
-	// Setup possible parts
-	$templates = array();
-	if ( isset( $name ) )
-		$templates[] = $slug . '-' . $name . '.php';
-	$templates[] = $slug . '.php';
+    // Setup possible parts
+    $templates = array();
+    if ( isset( $name ) )
+        $templates[] = $slug . '-' . $name . '.php';
+    $templates[] = $slug . '.php';
 
-	// Allow template parts to be filtered
-	$templates = apply_filters( 'wpinv_get_template_part', $templates, $slug, $name );
+    // Allow template parts to be filtered
+    $templates = apply_filters( 'wpinv_get_template_part', $templates, $slug, $name );
 
-	// Return the part that is found
-	return wpinv_locate_tmpl( $templates, $load, false );
+    // Return the part that is found
+    return wpinv_locate_tmpl( $templates, $load, false );
 }
 
 function wpinv_locate_tmpl( $template_names, $load = false, $require_once = true ) {
-	// No file found yet
-	$located = false;
+    // No file found yet
+    $located = false;
 
-	// Try to find a template file
-	foreach ( (array)$template_names as $template_name ) {
+    // Try to find a template file
+    foreach ( (array)$template_names as $template_name ) {
 
-		// Continue if template is empty
-		if ( empty( $template_name ) )
-			continue;
+        // Continue if template is empty
+        if ( empty( $template_name ) )
+            continue;
 
-		// Trim off any slashes from the template name
-		$template_name = ltrim( $template_name, '/' );
+        // Trim off any slashes from the template name
+        $template_name = ltrim( $template_name, '/' );
 
-		// try locating this template file by looping through the template paths
-		foreach( wpinv_get_theme_template_paths() as $template_path ) {
+        // try locating this template file by looping through the template paths
+        foreach( wpinv_get_theme_template_paths() as $template_path ) {
 
-			if( file_exists( $template_path . $template_name ) ) {
-				$located = $template_path . $template_name;
-				break;
-			}
-		}
+            if( file_exists( $template_path . $template_name ) ) {
+                $located = $template_path . $template_name;
+                break;
+            }
+        }
 
-		if( !empty( $located ) ) {
-			break;
-		}
-	}
+        if( !empty( $located ) ) {
+            break;
+        }
+    }
 
-	if ( ( true == $load ) && ! empty( $located ) )
-		load_template( $located, $require_once );
+    if ( ( true == $load ) && ! empty( $located ) )
+        load_template( $located, $require_once );
 
-	return $located;
+    return $located;
 }
 
 function wpinv_get_theme_template_paths() {
-	$template_dir = wpinv_get_theme_template_dir_name();
+    $template_dir = wpinv_get_theme_template_dir_name();
 
-	$file_paths = array(
-		1 => trailingslashit( get_stylesheet_directory() ) . $template_dir,
-		10 => trailingslashit( get_template_directory() ) . $template_dir,
-		100 => wpinv_get_templates_dir()
-	);
+    $file_paths = array(
+        1 => trailingslashit( get_stylesheet_directory() ) . $template_dir,
+        10 => trailingslashit( get_template_directory() ) . $template_dir,
+        100 => wpinv_get_templates_dir()
+    );
 
-	$file_paths = apply_filters( 'wpinv_template_paths', $file_paths );
+    $file_paths = apply_filters( 'wpinv_template_paths', $file_paths );
 
-	// sort the file paths based on priority
-	ksort( $file_paths, SORT_NUMERIC );
+    // sort the file paths based on priority
+    ksort( $file_paths, SORT_NUMERIC );
 
-	return array_map( 'trailingslashit', $file_paths );
+    return array_map( 'trailingslashit', $file_paths );
 }
 
 function wpinv_get_theme_template_dir_name() {
-	return trailingslashit( apply_filters( 'wpinv_templates_dir', 'invoicing' ) );
+    return trailingslashit( apply_filters( 'wpinv_templates_dir', 'invoicing' ) );
 }
 
 function wpinv_checkout_meta_tags() {
 
-	$pages   = array();
-	$pages[] = wpinv_get_option( 'success_page' );
-	$pages[] = wpinv_get_option( 'failure_page' );
-	$pages[] = wpinv_get_option( 'invoice_history_page' );
-	$pages[] = wpinv_get_option( 'invoice_subscription_page' );
+    $pages   = array();
+    $pages[] = wpinv_get_option( 'success_page' );
+    $pages[] = wpinv_get_option( 'failure_page' );
+    $pages[] = wpinv_get_option( 'invoice_history_page' );
+    $pages[] = wpinv_get_option( 'invoice_subscription_page' );
 
-	if( !wpinv_is_checkout() && !is_page( $pages ) ) {
-		return;
-	}
+    if( !wpinv_is_checkout() && !is_page( $pages ) ) {
+        return;
+    }
 
-	echo '<meta name="robots" content="noindex,nofollow" />' . "\n";
+    echo '<meta name="robots" content="noindex,nofollow" />' . "\n";
 }
 add_action( 'wp_head', 'wpinv_checkout_meta_tags' );
 
 function wpinv_add_body_classes( $class ) {
-	$classes = (array)$class;
+    $classes = (array)$class;
 
-	if( wpinv_is_checkout() ) {
-		$classes[] = 'wpinv-checkout';
-		$classes[] = 'wpinv-page';
-	}
+    if( wpinv_is_checkout() ) {
+        $classes[] = 'wpinv-checkout';
+        $classes[] = 'wpinv-page';
+    }
 
-	if( wpinv_is_success_page() ) {
-		$classes[] = 'wpinv-success';
-		$classes[] = 'wpinv-page';
-	}
+    if( wpinv_is_success_page() ) {
+        $classes[] = 'wpinv-success';
+        $classes[] = 'wpinv-page';
+    }
 
-	if( wpinv_is_failed_transaction_page() ) {
-		$classes[] = 'wpinv-failed-transaction';
-		$classes[] = 'wpinv-page';
-	}
+    if( wpinv_is_failed_transaction_page() ) {
+        $classes[] = 'wpinv-failed-transaction';
+        $classes[] = 'wpinv-page';
+    }
 
-	if( wpinv_is_invoice_history_page() ) {
-		$classes[] = 'wpinv-history';
-		$classes[] = 'wpinv-page';
-	}
+    if( wpinv_is_invoice_history_page() ) {
+        $classes[] = 'wpinv-history';
+        $classes[] = 'wpinv-page';
+    }
 
-	if( wpinv_is_subscriptions_history_page() ) {
-		$classes[] = 'wpinv-subscription';
-		$classes[] = 'wpinv-page';
-	}
+    if( wpinv_is_subscriptions_history_page() ) {
+        $classes[] = 'wpinv-subscription';
+        $classes[] = 'wpinv-page';
+    }
 
-	if( wpinv_is_test_mode() ) {
-		$classes[] = 'wpinv-test-mode';
-		$classes[] = 'wpinv-page';
-	}
+    if( wpinv_is_test_mode() ) {
+        $classes[] = 'wpinv-test-mode';
+        $classes[] = 'wpinv-page';
+    }
 
-	return array_unique( $classes );
+    return array_unique( $classes );
 }
 add_filter( 'body_class', 'wpinv_add_body_classes' );
 
@@ -947,21 +947,21 @@ 
 
     $formatted_address = str_ireplace( array_keys( $replacements ), $replacements, $format );
     
-	// Remove unavailable tags.
+    // Remove unavailable tags.
     $formatted_address = preg_replace( "/\{\{\w+\}\}/", '', $formatted_address );
 
     // Clean up white space.
-	$formatted_address = preg_replace( '/  +/', ' ', trim( $formatted_address ) );
+    $formatted_address = preg_replace( '/  +/', ' ', trim( $formatted_address ) );
     $formatted_address = preg_replace( '/\n\n+/', "\n", $formatted_address );
     
     // Break newlines apart and remove empty lines/trim commas and white space.
-	$formatted_address = array_filter( array_map( 'wpinv_trim_formatted_address_line', explode( "\n", $formatted_address ) ) );
+    $formatted_address = array_filter( array_map( 'wpinv_trim_formatted_address_line', explode( "\n", $formatted_address ) ) );
 
     // Add html breaks.
-	$formatted_address = implode( $separator, $formatted_address );
+    $formatted_address = implode( $separator, $formatted_address );
 
-	// We're done!
-	return $formatted_address;
+    // We're done!
+    return $formatted_address;
     
 }
 
@@ -1048,7 +1048,7 @@ 
 
                     $item       = $item_id ? new WPInv_Item( $item_id ) : NULL;
                     $summary    = '';
-	                $item_name    = '';
+                    $item_name    = '';
                     $cols       = 3;
                     if ( !empty($item) ) {
                         $item_name  = $item->get_name();
@@ -1426,7 +1426,7 @@ 
     $form_action  = esc_url( wpinv_get_checkout_uri() );
 
     ob_start();
-	    do_action( 'wpinv_checkout_content_before' );
+        do_action( 'wpinv_checkout_content_before' );
         echo '<div id="wpinv_checkout_wrap">';
 
         if ( wpinv_get_cart_contents() || wpinv_cart_has_fees() ) {
@@ -1449,7 +1449,7 @@ 
             do_action( 'wpinv_cart_empty' );
         }
         echo '</div><!--end #wpinv_checkout_wrap-->';
-	    do_action( 'wpinv_checkout_content_after' );
+        do_action( 'wpinv_checkout_content_after' );
     return ob_get_clean();
 }
 
@@ -1476,7 +1476,7 @@ 
 add_action( 'wpinv_checkout_cart', 'wpinv_checkout_cart', 10 );
 
 function wpinv_empty_cart_message() {
-	return apply_filters( 'wpinv_empty_cart_message', '<span class="wpinv_empty_cart">' . __( 'Your cart is empty.', 'invoicing' ) . '</span>' );
+    return apply_filters( 'wpinv_empty_cart_message', '<span class="wpinv_empty_cart">' . __( 'Your cart is empty.', 'invoicing' ) . '</span>' );
 }
 
 /**
@@ -1486,7 +1486,7 @@ 
  * @return void
  */
 function wpinv_empty_checkout_cart() {
-	echo wpinv_empty_cart_message();
+    echo wpinv_empty_cart_message();
 }
 add_action( 'wpinv_cart_empty', 'wpinv_empty_checkout_cart' );
 

Spacing +743 added lines, -743 removed lines

@@ -7,91 +7,91 @@ 
  */
  
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
-if ( !is_admin() ) {
-    add_filter( 'template_include', 'wpinv_template', 10, 1 );
-    add_action( 'wpinv_invoice_print_body_start', 'wpinv_display_invoice_top_bar' );
-    add_action( 'wpinv_invoice_top_bar_left', 'wpinv_invoice_display_left_actions' );
-    add_action( 'wpinv_invoice_top_bar_right', 'wpinv_invoice_display_right_actions' );
+if (!is_admin()) {
+    add_filter('template_include', 'wpinv_template', 10, 1);
+    add_action('wpinv_invoice_print_body_start', 'wpinv_display_invoice_top_bar');
+    add_action('wpinv_invoice_top_bar_left', 'wpinv_invoice_display_left_actions');
+    add_action('wpinv_invoice_top_bar_right', 'wpinv_invoice_display_right_actions');
 }
 
 function wpinv_template_path() {
-    return apply_filters( 'wpinv_template_path', wpinv_get_theme_template_dir_name() );
+    return apply_filters('wpinv_template_path', wpinv_get_theme_template_dir_name());
 }
 
-function wpinv_display_invoice_top_bar( $invoice ) {
-    if ( empty( $invoice ) ) {
+function wpinv_display_invoice_top_bar($invoice) {
+    if (empty($invoice)) {
         return;
     }
     ?>
     <div class="row wpinv-top-bar no-print">
         <div class="container">
             <div class="col-xs-6">
-                <?php do_action( 'wpinv_invoice_top_bar_left', $invoice );?>
+                <?php do_action('wpinv_invoice_top_bar_left', $invoice); ?>
             </div>
             <div class="col-xs-6 text-right">
-                <?php do_action( 'wpinv_invoice_top_bar_right', $invoice );?>
+                <?php do_action('wpinv_invoice_top_bar_right', $invoice); ?>
             </div>
         </div>
     </div>
     <?php
 }
 
-function wpinv_invoice_display_left_actions( $invoice ) {
-    if ( empty( $invoice ) ) {
+function wpinv_invoice_display_left_actions($invoice) {
+    if (empty($invoice)) {
         return; // Exit if invoice is not set.
     }
     
-    if ( $invoice->post_type == 'wpi_invoice' ) {
-        if ( $invoice->needs_payment() ) {
-            ?> <a class="btn btn-success btn-sm" title="<?php esc_attr_e( 'Pay This Invoice', 'invoicing' ); ?>" href="<?php echo esc_url( $invoice->get_checkout_payment_url() ); ?>"><?php _e( 'Pay For Invoice', 'invoicing' ); ?></a><?php
+    if ($invoice->post_type == 'wpi_invoice') {
+        if ($invoice->needs_payment()) {
+            ?> <a class="btn btn-success btn-sm" title="<?php esc_attr_e('Pay This Invoice', 'invoicing'); ?>" href="<?php echo esc_url($invoice->get_checkout_payment_url()); ?>"><?php _e('Pay For Invoice', 'invoicing'); ?></a><?php
         }
     }
     do_action('wpinv_invoice_display_left_actions', $invoice);
 }
 
-function wpinv_invoice_display_right_actions( $invoice ) {
-    if ( empty( $invoice ) ) {
+function wpinv_invoice_display_right_actions($invoice) {
+    if (empty($invoice)) {
         return; // Exit if invoice is not set.
     }
 
-    if ( $invoice->post_type == 'wpi_invoice' ) { ?>
-        <a class="btn btn-primary btn-sm btn-print-invoice" onclick="window.print();" href="javascript:void(0)"><?php _e( 'Print Invoice', 'invoicing' ); ?></a>
-        <?php if ( is_user_logged_in() ) { ?>
-        &nbsp;&nbsp;<a class="btn btn-warning btn-sm btn-invoice-history" href="<?php echo esc_url( wpinv_get_history_page_uri() ); ?>"><?php _e( 'Invoice History', 'invoicing' ); ?></a>
+    if ($invoice->post_type == 'wpi_invoice') { ?>
+        <a class="btn btn-primary btn-sm btn-print-invoice" onclick="window.print();" href="javascript:void(0)"><?php _e('Print Invoice', 'invoicing'); ?></a>
+        <?php if (is_user_logged_in()) { ?>
+        &nbsp;&nbsp;<a class="btn btn-warning btn-sm btn-invoice-history" href="<?php echo esc_url(wpinv_get_history_page_uri()); ?>"><?php _e('Invoice History', 'invoicing'); ?></a>
         <?php }
     }
     do_action('wpinv_invoice_display_right_actions', $invoice);
 }
 
-function wpinv_before_invoice_content( $content ) {
+function wpinv_before_invoice_content($content) {
     global $post;
 
-    if ( !empty( $post ) && $post->post_type == 'wpi_invoice' && is_singular( 'wpi_invoice' ) && is_main_query() ) {
+    if (!empty($post) && $post->post_type == 'wpi_invoice' && is_singular('wpi_invoice') && is_main_query()) {
         ob_start();
-        do_action( 'wpinv_before_invoice_content', $post->ID );
+        do_action('wpinv_before_invoice_content', $post->ID);
         $content = ob_get_clean() . $content;
     }
 
     return $content;
 }
-add_filter( 'the_content', 'wpinv_before_invoice_content' );
+add_filter('the_content', 'wpinv_before_invoice_content');
 
-function wpinv_after_invoice_content( $content ) {
+function wpinv_after_invoice_content($content) {
     global $post;
 
-    if ( !empty( $post ) && $post->post_type == 'wpi_invoice' && is_singular( 'wpi_invoice' ) && is_main_query() ) {
+    if (!empty($post) && $post->post_type == 'wpi_invoice' && is_singular('wpi_invoice') && is_main_query()) {
         ob_start();
-        do_action( 'wpinv_after_invoice_content', $post->ID );
+        do_action('wpinv_after_invoice_content', $post->ID);
         $content .= ob_get_clean();
     }
 
     return $content;
 }
-add_filter( 'the_content', 'wpinv_after_invoice_content' );
+add_filter('the_content', 'wpinv_after_invoice_content');
 
 function wpinv_get_templates_dir() {
     return WPINV_PLUGIN_DIR . 'templates';
@@ -101,105 +101,105 @@ 
     return WPINV_PLUGIN_URL . 'templates';
 }
 
-function wpinv_get_template( $template_name, $args = array(), $template_path = '', $default_path = '' ) {
-    if ( ! empty( $args ) && is_array( $args ) ) {
-		extract( $args );
+function wpinv_get_template($template_name, $args = array(), $template_path = '', $default_path = '') {
+    if (!empty($args) && is_array($args)) {
+		extract($args);
 	}
 
-	$located = wpinv_locate_template( $template_name, $template_path, $default_path );
+	$located = wpinv_locate_template($template_name, $template_path, $default_path);
 	// Allow 3rd party plugin filter template file from their plugin.
-	$located = apply_filters( 'wpinv_get_template', $located, $template_name, $args, $template_path, $default_path );
+	$located = apply_filters('wpinv_get_template', $located, $template_name, $args, $template_path, $default_path);
 
-	if ( ! file_exists( $located ) ) {
-        _doing_it_wrong( __FUNCTION__, sprintf( '<code>%s</code> does not exist.', $located ), '2.1' );
+	if (!file_exists($located)) {
+        _doing_it_wrong(__FUNCTION__, sprintf('<code>%s</code> does not exist.', $located), '2.1');
 		return;
 	}
 
-	do_action( 'wpinv_before_template_part', $template_name, $template_path, $located, $args );
+	do_action('wpinv_before_template_part', $template_name, $template_path, $located, $args);
 
-	include( $located );
+	include($located);
 
-	do_action( 'wpinv_after_template_part', $template_name, $template_path, $located, $args );
+	do_action('wpinv_after_template_part', $template_name, $template_path, $located, $args);
 }
 
-function wpinv_get_template_html( $template_name, $args = array(), $template_path = '', $default_path = '' ) {
+function wpinv_get_template_html($template_name, $args = array(), $template_path = '', $default_path = '') {
 	ob_start();
-	wpinv_get_template( $template_name, $args, $template_path, $default_path );
+	wpinv_get_template($template_name, $args, $template_path, $default_path);
 	return ob_get_clean();
 }
 
-function wpinv_locate_template( $template_name, $template_path = '', $default_path = '' ) {
-    if ( ! $template_path ) {
+function wpinv_locate_template($template_name, $template_path = '', $default_path = '') {
+    if (!$template_path) {
         $template_path = wpinv_template_path();
     }
 
-    if ( ! $default_path ) {
+    if (!$default_path) {
         $default_path = WPINV_PLUGIN_DIR . 'templates/';
     }
 
     // Look within passed path within the theme - this is priority.
     $template = locate_template(
         array(
-            trailingslashit( $template_path ) . $template_name,
+            trailingslashit($template_path) . $template_name,
             $template_name
         )
     );
 
     // Get default templates/
-    if ( !$template && $default_path ) {
-        $template = trailingslashit( $default_path ) . $template_name;
+    if (!$template && $default_path) {
+        $template = trailingslashit($default_path) . $template_name;
     }
 
     // Return what we found.
-    return apply_filters( 'wpinv_locate_template', $template, $template_name, $template_path );
+    return apply_filters('wpinv_locate_template', $template, $template_name, $template_path);
 }
 
-function wpinv_get_template_part( $slug, $name = null, $load = true ) {
-	do_action( 'get_template_part_' . $slug, $slug, $name );
+function wpinv_get_template_part($slug, $name = null, $load = true) {
+	do_action('get_template_part_' . $slug, $slug, $name);
 
 	// Setup possible parts
 	$templates = array();
-	if ( isset( $name ) )
+	if (isset($name))
 		$templates[] = $slug . '-' . $name . '.php';
 	$templates[] = $slug . '.php';
 
 	// Allow template parts to be filtered
-	$templates = apply_filters( 'wpinv_get_template_part', $templates, $slug, $name );
+	$templates = apply_filters('wpinv_get_template_part', $templates, $slug, $name);
 
 	// Return the part that is found
-	return wpinv_locate_tmpl( $templates, $load, false );
+	return wpinv_locate_tmpl($templates, $load, false);
 }
 
-function wpinv_locate_tmpl( $template_names, $load = false, $require_once = true ) {
+function wpinv_locate_tmpl($template_names, $load = false, $require_once = true) {
 	// No file found yet
 	$located = false;
 
 	// Try to find a template file
-	foreach ( (array)$template_names as $template_name ) {
+	foreach ((array) $template_names as $template_name) {
 
 		// Continue if template is empty
-		if ( empty( $template_name ) )
+		if (empty($template_name))
 			continue;
 
 		// Trim off any slashes from the template name
-		$template_name = ltrim( $template_name, '/' );
+		$template_name = ltrim($template_name, '/');
 
 		// try locating this template file by looping through the template paths
-		foreach( wpinv_get_theme_template_paths() as $template_path ) {
+		foreach (wpinv_get_theme_template_paths() as $template_path) {
 
-			if( file_exists( $template_path . $template_name ) ) {
+			if (file_exists($template_path . $template_name)) {
 				$located = $template_path . $template_name;
 				break;
 			}
 		}
 
-		if( !empty( $located ) ) {
+		if (!empty($located)) {
 			break;
 		}
 	}
 
-	if ( ( true == $load ) && ! empty( $located ) )
-		load_template( $located, $require_once );
+	if ((true == $load) && !empty($located))
+		load_template($located, $require_once);
 
 	return $located;
 }
@@ -208,159 +208,159 @@ 
 	$template_dir = wpinv_get_theme_template_dir_name();
 
 	$file_paths = array(
-		1 => trailingslashit( get_stylesheet_directory() ) . $template_dir,
-		10 => trailingslashit( get_template_directory() ) . $template_dir,
+		1 => trailingslashit(get_stylesheet_directory()) . $template_dir,
+		10 => trailingslashit(get_template_directory()) . $template_dir,
 		100 => wpinv_get_templates_dir()
 	);
 
-	$file_paths = apply_filters( 'wpinv_template_paths', $file_paths );
+	$file_paths = apply_filters('wpinv_template_paths', $file_paths);
 
 	// sort the file paths based on priority
-	ksort( $file_paths, SORT_NUMERIC );
+	ksort($file_paths, SORT_NUMERIC);
 
-	return array_map( 'trailingslashit', $file_paths );
+	return array_map('trailingslashit', $file_paths);
 }
 
 function wpinv_get_theme_template_dir_name() {
-	return trailingslashit( apply_filters( 'wpinv_templates_dir', 'invoicing' ) );
+	return trailingslashit(apply_filters('wpinv_templates_dir', 'invoicing'));
 }
 
 function wpinv_checkout_meta_tags() {
 
 	$pages   = array();
-	$pages[] = wpinv_get_option( 'success_page' );
-	$pages[] = wpinv_get_option( 'failure_page' );
-	$pages[] = wpinv_get_option( 'invoice_history_page' );
-	$pages[] = wpinv_get_option( 'invoice_subscription_page' );
+	$pages[] = wpinv_get_option('success_page');
+	$pages[] = wpinv_get_option('failure_page');
+	$pages[] = wpinv_get_option('invoice_history_page');
+	$pages[] = wpinv_get_option('invoice_subscription_page');
 
-	if( !wpinv_is_checkout() && !is_page( $pages ) ) {
+	if (!wpinv_is_checkout() && !is_page($pages)) {
 		return;
 	}
 
 	echo '<meta name="robots" content="noindex,nofollow" />' . "\n";
 }
-add_action( 'wp_head', 'wpinv_checkout_meta_tags' );
+add_action('wp_head', 'wpinv_checkout_meta_tags');
 
-function wpinv_add_body_classes( $class ) {
-	$classes = (array)$class;
+function wpinv_add_body_classes($class) {
+	$classes = (array) $class;
 
-	if( wpinv_is_checkout() ) {
+	if (wpinv_is_checkout()) {
 		$classes[] = 'wpinv-checkout';
 		$classes[] = 'wpinv-page';
 	}
 
-	if( wpinv_is_success_page() ) {
+	if (wpinv_is_success_page()) {
 		$classes[] = 'wpinv-success';
 		$classes[] = 'wpinv-page';
 	}
 
-	if( wpinv_is_failed_transaction_page() ) {
+	if (wpinv_is_failed_transaction_page()) {
 		$classes[] = 'wpinv-failed-transaction';
 		$classes[] = 'wpinv-page';
 	}
 
-	if( wpinv_is_invoice_history_page() ) {
+	if (wpinv_is_invoice_history_page()) {
 		$classes[] = 'wpinv-history';
 		$classes[] = 'wpinv-page';
 	}
 
-	if( wpinv_is_subscriptions_history_page() ) {
+	if (wpinv_is_subscriptions_history_page()) {
 		$classes[] = 'wpinv-subscription';
 		$classes[] = 'wpinv-page';
 	}
 
-	if( wpinv_is_test_mode() ) {
+	if (wpinv_is_test_mode()) {
 		$classes[] = 'wpinv-test-mode';
 		$classes[] = 'wpinv-page';
 	}
 
-	return array_unique( $classes );
+	return array_unique($classes);
 }
-add_filter( 'body_class', 'wpinv_add_body_classes' );
+add_filter('body_class', 'wpinv_add_body_classes');
 
-function wpinv_html_dropdown( $name = 'wpinv_discounts', $selected = 0, $status = '' ) {
-    $args = array( 'nopaging' => true );
+function wpinv_html_dropdown($name = 'wpinv_discounts', $selected = 0, $status = '') {
+    $args = array('nopaging' => true);
 
-    if ( ! empty( $status ) )
+    if (!empty($status))
         $args['post_status'] = $status;
 
-    $discounts = wpinv_get_discounts( $args );
+    $discounts = wpinv_get_discounts($args);
     $options   = array();
 
-    if ( $discounts ) {
-        foreach ( $discounts as $discount ) {
-            $options[ absint( $discount->ID ) ] = esc_html( get_the_title( $discount->ID ) );
+    if ($discounts) {
+        foreach ($discounts as $discount) {
+            $options[absint($discount->ID)] = esc_html(get_the_title($discount->ID));
         }
     } else {
-        $options[0] = __( 'No discounts found', 'invoicing' );
+        $options[0] = __('No discounts found', 'invoicing');
     }
 
-    $output = wpinv_html_select( array(
+    $output = wpinv_html_select(array(
         'name'             => $name,
         'selected'         => $selected,
         'options'          => $options,
         'show_option_all'  => false,
         'show_option_none' => false,
-    ) );
+    ));
 
     return $output;
 }
 
-function wpinv_html_year_dropdown( $name = 'year', $selected = 0, $years_before = 5, $years_after = 0 ) {
-    $current     = date( 'Y' );
-    $start_year  = $current - absint( $years_before );
-    $end_year    = $current + absint( $years_after );
-    $selected    = empty( $selected ) ? date( 'Y' ) : $selected;
+function wpinv_html_year_dropdown($name = 'year', $selected = 0, $years_before = 5, $years_after = 0) {
+    $current     = date('Y');
+    $start_year  = $current - absint($years_before);
+    $end_year    = $current + absint($years_after);
+    $selected    = empty($selected) ? date('Y') : $selected;
     $options     = array();
 
-    while ( $start_year <= $end_year ) {
-        $options[ absint( $start_year ) ] = $start_year;
+    while ($start_year <= $end_year) {
+        $options[absint($start_year)] = $start_year;
         $start_year++;
     }
 
-    $output = wpinv_html_select( array(
+    $output = wpinv_html_select(array(
         'name'             => $name,
         'selected'         => $selected,
         'options'          => $options,
         'show_option_all'  => false,
         'show_option_none' => false
-    ) );
+    ));
 
     return $output;
 }
 
-function wpinv_html_month_dropdown( $name = 'month', $selected = 0 ) {
+function wpinv_html_month_dropdown($name = 'month', $selected = 0) {
 
     $options = array(
-        '1'  => __( 'January', 'invoicing' ),
-        '2'  => __( 'February', 'invoicing' ),
-        '3'  => __( 'March', 'invoicing' ),
-        '4'  => __( 'April', 'invoicing' ),
-        '5'  => __( 'May', 'invoicing' ),
-        '6'  => __( 'June', 'invoicing' ),
-        '7'  => __( 'July', 'invoicing' ),
-        '8'  => __( 'August', 'invoicing' ),
-        '9'  => __( 'September', 'invoicing' ),
-        '10' => __( 'October', 'invoicing' ),
-        '11' => __( 'November', 'invoicing' ),
-        '12' => __( 'December', 'invoicing' ),
+        '1'  => __('January', 'invoicing'),
+        '2'  => __('February', 'invoicing'),
+        '3'  => __('March', 'invoicing'),
+        '4'  => __('April', 'invoicing'),
+        '5'  => __('May', 'invoicing'),
+        '6'  => __('June', 'invoicing'),
+        '7'  => __('July', 'invoicing'),
+        '8'  => __('August', 'invoicing'),
+        '9'  => __('September', 'invoicing'),
+        '10' => __('October', 'invoicing'),
+        '11' => __('November', 'invoicing'),
+        '12' => __('December', 'invoicing'),
     );
 
     // If no month is selected, default to the current month
-    $selected = empty( $selected ) ? date( 'n' ) : $selected;
+    $selected = empty($selected) ? date('n') : $selected;
 
-    $output = wpinv_html_select( array(
+    $output = wpinv_html_select(array(
         'name'             => $name,
         'selected'         => $selected,
         'options'          => $options,
         'show_option_all'  => false,
         'show_option_none' => false
-    ) );
+    ));
 
     return $output;
 }
 
-function wpinv_html_select( $args = array() ) {
+function wpinv_html_select($args = array()) {
     $defaults = array(
         'options'          => array(),
         'name'             => null,
@@ -369,8 +369,8 @@ 
         'selected'         => 0,
         'placeholder'      => null,
         'multiple'         => false,
-        'show_option_all'  => _x( 'All', 'all dropdown items', 'invoicing' ),
-        'show_option_none' => _x( 'None', 'no dropdown items', 'invoicing' ),
+        'show_option_all'  => _x('All', 'all dropdown items', 'invoicing'),
+        'show_option_none' => _x('None', 'no dropdown items', 'invoicing'),
         'data'             => array(),
         'onchange'         => null,
         'required'         => false,
@@ -378,74 +378,74 @@ 
         'readonly'         => false,
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
     $data_elements = '';
-    foreach ( $args['data'] as $key => $value ) {
-        $data_elements .= ' data-' . esc_attr( $key ) . '="' . esc_attr( $value ) . '"';
+    foreach ($args['data'] as $key => $value) {
+        $data_elements .= ' data-' . esc_attr($key) . '="' . esc_attr($value) . '"';
     }
 
-    if( $args['multiple'] ) {
+    if ($args['multiple']) {
         $multiple = ' MULTIPLE';
     } else {
         $multiple = '';
     }
 
-    if( $args['placeholder'] ) {
+    if ($args['placeholder']) {
         $placeholder = $args['placeholder'];
     } else {
         $placeholder = '';
     }
     
     $options = '';
-    if( !empty( $args['onchange'] ) ) {
-        $options .= ' onchange="' . esc_attr( $args['onchange'] ) . '"';
+    if (!empty($args['onchange'])) {
+        $options .= ' onchange="' . esc_attr($args['onchange']) . '"';
     }
     
-    if( !empty( $args['required'] ) ) {
+    if (!empty($args['required'])) {
         $options .= ' required="required"';
     }
     
-    if( !empty( $args['disabled'] ) ) {
+    if (!empty($args['disabled'])) {
         $options .= ' disabled';
     }
     
-    if( !empty( $args['readonly'] ) ) {
+    if (!empty($args['readonly'])) {
         $options .= ' readonly';
     }
 
-    $class  = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['class'] ) ) );
-    $output = '<select name="' . esc_attr( $args['name'] ) . '" id="' . esc_attr( $args['id'] ) . '" class="wpinv-select ' . $class . '"' . $multiple . ' data-placeholder="' . $placeholder . '" ' . trim( $options ) . $data_elements . '>';
+    $class  = implode(' ', array_map('sanitize_html_class', explode(' ', $args['class'])));
+    $output = '<select name="' . esc_attr($args['name']) . '" id="' . esc_attr($args['id']) . '" class="wpinv-select ' . $class . '"' . $multiple . ' data-placeholder="' . $placeholder . '" ' . trim($options) . $data_elements . '>';
 
-    if ( $args['show_option_all'] ) {
-        if( $args['multiple'] ) {
-            $selected = selected( true, in_array( 0, $args['selected'] ), false );
+    if ($args['show_option_all']) {
+        if ($args['multiple']) {
+            $selected = selected(true, in_array(0, $args['selected']), false);
         } else {
-            $selected = selected( $args['selected'], 0, false );
+            $selected = selected($args['selected'], 0, false);
         }
-        $output .= '<option value="all"' . $selected . '>' . esc_html( $args['show_option_all'] ) . '</option>';
+        $output .= '<option value="all"' . $selected . '>' . esc_html($args['show_option_all']) . '</option>';
     }
 
-    if ( !empty( $args['options'] ) ) {
+    if (!empty($args['options'])) {
 
-        if ( $args['show_option_none'] ) {
-            if( $args['multiple'] ) {
-                $selected = selected( true, in_array( "", $args['selected'] ), false );
+        if ($args['show_option_none']) {
+            if ($args['multiple']) {
+                $selected = selected(true, in_array("", $args['selected']), false);
             } else {
-                $selected = selected( $args['selected'] === "", true, false );
+                $selected = selected($args['selected'] === "", true, false);
             }
-            $output .= '<option value=""' . $selected . '>' . esc_html( $args['show_option_none'] ) . '</option>';
+            $output .= '<option value=""' . $selected . '>' . esc_html($args['show_option_none']) . '</option>';
         }
 
-        foreach( $args['options'] as $key => $option ) {
+        foreach ($args['options'] as $key => $option) {
 
-            if( $args['multiple'] && is_array( $args['selected'] ) ) {
-                $selected = selected( true, (bool)in_array( $key, $args['selected'] ), false );
+            if ($args['multiple'] && is_array($args['selected'])) {
+                $selected = selected(true, (bool) in_array($key, $args['selected']), false);
             } else {
-                $selected = selected( $args['selected'], $key, false );
+                $selected = selected($args['selected'], $key, false);
             }
 
-            $output .= '<option value="' . esc_attr( $key ) . '"' . $selected . '>' . esc_html( $option ) . '</option>';
+            $output .= '<option value="' . esc_attr($key) . '"' . $selected . '>' . esc_html($option) . '</option>';
         }
     }
 
@@ -454,7 +454,7 @@ 
     return $output;
 }
 
-function wpinv_item_dropdown( $args = array() ) {
+function wpinv_item_dropdown($args = array()) {
     $defaults = array(
         'name'              => 'wpi_item',
         'id'                => 'wpi_item',
@@ -462,14 +462,14 @@ 
         'multiple'          => false,
         'selected'          => 0,
         'number'            => 100,
-        'placeholder'       => __( 'Choose a item', 'invoicing' ),
-        'data'              => array( 'search-type' => 'item' ),
+        'placeholder'       => __('Choose a item', 'invoicing'),
+        'data'              => array('search-type' => 'item'),
         'show_option_all'   => false,
         'show_option_none'  => false,
         'show_recurring'    => false,
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
     $item_args = array(
         'post_type'      => 'wpi_item',
@@ -478,44 +478,44 @@ 
         'posts_per_page' => $args['number']
     );
     
-    $item_args  = apply_filters( 'wpinv_item_dropdown_query_args', $item_args, $args, $defaults );
+    $item_args  = apply_filters('wpinv_item_dropdown_query_args', $item_args, $args, $defaults);
 
-    $items      = get_posts( $item_args );
+    $items      = get_posts($item_args);
     $options    = array();
-    if ( $items ) {
-        foreach ( $items as $item ) {
-            $title = esc_html( $item->post_title );
+    if ($items) {
+        foreach ($items as $item) {
+            $title = esc_html($item->post_title);
             
-            if ( !empty( $args['show_recurring'] ) ) {
-                $title .= wpinv_get_item_suffix( $item->ID, false );
+            if (!empty($args['show_recurring'])) {
+                $title .= wpinv_get_item_suffix($item->ID, false);
             }
             
-            $options[ absint( $item->ID ) ] = $title;
+            $options[absint($item->ID)] = $title;
         }
     }
 
     // This ensures that any selected items are included in the drop down
-    if( is_array( $args['selected'] ) ) {
-        foreach( $args['selected'] as $item ) {
-            if( ! in_array( $item, $options ) ) {
-                $title = get_the_title( $item );
-                if ( !empty( $args['show_recurring'] ) ) {
-                    $title .= wpinv_get_item_suffix( $item, false );
+    if (is_array($args['selected'])) {
+        foreach ($args['selected'] as $item) {
+            if (!in_array($item, $options)) {
+                $title = get_the_title($item);
+                if (!empty($args['show_recurring'])) {
+                    $title .= wpinv_get_item_suffix($item, false);
                 }
                 $options[$item] = $title;
             }
         }
-    } elseif ( is_numeric( $args['selected'] ) && $args['selected'] !== 0 ) {
-        if ( ! in_array( $args['selected'], $options ) ) {
-            $title = get_the_title( $args['selected'] );
-            if ( !empty( $args['show_recurring'] ) ) {
-                $title .= wpinv_get_item_suffix( $args['selected'], false );
+    } elseif (is_numeric($args['selected']) && $args['selected'] !== 0) {
+        if (!in_array($args['selected'], $options)) {
+            $title = get_the_title($args['selected']);
+            if (!empty($args['show_recurring'])) {
+                $title .= wpinv_get_item_suffix($args['selected'], false);
             }
-            $options[$args['selected']] = get_the_title( $args['selected'] );
+            $options[$args['selected']] = get_the_title($args['selected']);
         }
     }
 
-    $output = wpinv_html_select( array(
+    $output = wpinv_html_select(array(
         'name'             => $args['name'],
         'selected'         => $args['selected'],
         'id'               => $args['id'],
@@ -526,12 +526,12 @@ 
         'show_option_all'  => $args['show_option_all'],
         'show_option_none' => $args['show_option_none'],
         'data'             => $args['data'],
-    ) );
+    ));
 
     return $output;
 }
 
-function wpinv_html_checkbox( $args = array() ) {
+function wpinv_html_checkbox($args = array()) {
     $defaults = array(
         'name'     => null,
         'current'  => null,
@@ -542,38 +542,38 @@ 
         )
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
-    $class = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['class'] ) ) );
+    $class = implode(' ', array_map('sanitize_html_class', explode(' ', $args['class'])));
     $options = '';
-    if ( ! empty( $args['options']['disabled'] ) ) {
+    if (!empty($args['options']['disabled'])) {
         $options .= ' disabled="disabled"';
-    } elseif ( ! empty( $args['options']['readonly'] ) ) {
+    } elseif (!empty($args['options']['readonly'])) {
         $options .= ' readonly';
     }
 
-    $output = '<input type="checkbox"' . $options . ' name="' . esc_attr( $args['name'] ) . '" id="' . esc_attr( $args['name'] ) . '" class="' . $class . ' ' . esc_attr( $args['name'] ) . '" ' . checked( 1, $args['current'], false ) . ' />';
+    $output = '<input type="checkbox"' . $options . ' name="' . esc_attr($args['name']) . '" id="' . esc_attr($args['name']) . '" class="' . $class . ' ' . esc_attr($args['name']) . '" ' . checked(1, $args['current'], false) . ' />';
 
     return $output;
 }
 
-function wpinv_html_text( $args = array() ) {
+function wpinv_html_text($args = array()) {
     // Backwards compatibility
-    if ( func_num_args() > 1 ) {
+    if (func_num_args() > 1) {
         $args = func_get_args();
 
         $name  = $args[0];
-        $value = isset( $args[1] ) ? $args[1] : '';
-        $label = isset( $args[2] ) ? $args[2] : '';
-        $desc  = isset( $args[3] ) ? $args[3] : '';
+        $value = isset($args[1]) ? $args[1] : '';
+        $label = isset($args[2]) ? $args[2] : '';
+        $desc  = isset($args[3]) ? $args[3] : '';
     }
 
     $defaults = array(
         'id'           => '',
-        'name'         => isset( $name )  ? $name  : 'text',
-        'value'        => isset( $value ) ? $value : null,
-        'label'        => isset( $label ) ? $label : null,
-        'desc'         => isset( $desc )  ? $desc  : null,
+        'name'         => isset($name) ? $name : 'text',
+        'value'        => isset($value) ? $value : null,
+        'label'        => isset($label) ? $label : null,
+        'desc'         => isset($desc) ? $desc : null,
         'placeholder'  => '',
         'class'        => 'regular-text',
         'disabled'     => false,
@@ -583,51 +583,51 @@ 
         'data'         => false
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
-    $class = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['class'] ) ) );
+    $class = implode(' ', array_map('sanitize_html_class', explode(' ', $args['class'])));
     $options = '';
-    if( $args['required'] ) {
+    if ($args['required']) {
         $options .= ' required="required"';
     }
-    if( $args['readonly'] ) {
+    if ($args['readonly']) {
         $options .= ' readonly';
     }
-    if( $args['readonly'] ) {
+    if ($args['readonly']) {
         $options .= ' readonly';
     }
 
     $data = '';
-    if ( !empty( $args['data'] ) ) {
-        foreach ( $args['data'] as $key => $value ) {
-            $data .= 'data-' . wpinv_sanitize_key( $key ) . '="' . esc_attr( $value ) . '" ';
+    if (!empty($args['data'])) {
+        foreach ($args['data'] as $key => $value) {
+            $data .= 'data-' . wpinv_sanitize_key($key) . '="' . esc_attr($value) . '" ';
         }
     }
 
-    $output = '<span id="wpinv-' . wpinv_sanitize_key( $args['name'] ) . '-wrap">';
-    $output .= '<label class="wpinv-label" for="' . wpinv_sanitize_key( $args['id'] ) . '">' . esc_html( $args['label'] ) . '</label>';
-    if ( ! empty( $args['desc'] ) ) {
-        $output .= '<span class="wpinv-description">' . esc_html( $args['desc'] ) . '</span>';
+    $output = '<span id="wpinv-' . wpinv_sanitize_key($args['name']) . '-wrap">';
+    $output .= '<label class="wpinv-label" for="' . wpinv_sanitize_key($args['id']) . '">' . esc_html($args['label']) . '</label>';
+    if (!empty($args['desc'])) {
+        $output .= '<span class="wpinv-description">' . esc_html($args['desc']) . '</span>';
     }
 
-    $output .= '<input type="text" name="' . esc_attr( $args['name'] ) . '" id="' . esc_attr( $args['id'] )  . '" autocomplete="' . esc_attr( $args['autocomplete'] )  . '" value="' . esc_attr( $args['value'] ) . '" placeholder="' . esc_attr( $args['placeholder'] ) . '" class="' . $class . '" ' . $data . ' ' . trim( $options ) . '/>';
+    $output .= '<input type="text" name="' . esc_attr($args['name']) . '" id="' . esc_attr($args['id']) . '" autocomplete="' . esc_attr($args['autocomplete']) . '" value="' . esc_attr($args['value']) . '" placeholder="' . esc_attr($args['placeholder']) . '" class="' . $class . '" ' . $data . ' ' . trim($options) . '/>';
 
     $output .= '</span>';
 
     return $output;
 }
 
-function wpinv_html_date_field( $args = array() ) {
-    if( empty( $args['class'] ) ) {
+function wpinv_html_date_field($args = array()) {
+    if (empty($args['class'])) {
         $args['class'] = 'wpiDatepicker';
-    } elseif( ! strpos( $args['class'], 'wpiDatepicker' ) ) {
+    } elseif (!strpos($args['class'], 'wpiDatepicker')) {
         $args['class'] .= ' wpiDatepicker';
     }
 
-    return wpinv_html_text( $args );
+    return wpinv_html_text($args);
 }
 
-function wpinv_html_textarea( $args = array() ) {
+function wpinv_html_textarea($args = array()) {
     $defaults = array(
         'name'        => 'textarea',
         'value'       => null,
@@ -637,31 +637,31 @@ 
         'disabled'    => false
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
-    $class = implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['class'] ) ) );
+    $class = implode(' ', array_map('sanitize_html_class', explode(' ', $args['class'])));
     $disabled = '';
-    if( $args['disabled'] ) {
+    if ($args['disabled']) {
         $disabled = ' disabled="disabled"';
     }
 
-    $output = '<span id="wpinv-' . wpinv_sanitize_key( $args['name'] ) . '-wrap">';
-    $output .= '<label class="wpinv-label" for="' . wpinv_sanitize_key( $args['name'] ) . '">' . esc_html( $args['label'] ) . '</label>';
-    $output .= '<textarea name="' . esc_attr( $args['name'] ) . '" id="' . wpinv_sanitize_key( $args['name'] ) . '" class="' . $class . '"' . $disabled . '>' . esc_attr( $args['value'] ) . '</textarea>';
+    $output = '<span id="wpinv-' . wpinv_sanitize_key($args['name']) . '-wrap">';
+    $output .= '<label class="wpinv-label" for="' . wpinv_sanitize_key($args['name']) . '">' . esc_html($args['label']) . '</label>';
+    $output .= '<textarea name="' . esc_attr($args['name']) . '" id="' . wpinv_sanitize_key($args['name']) . '" class="' . $class . '"' . $disabled . '>' . esc_attr($args['value']) . '</textarea>';
 
-    if ( ! empty( $args['desc'] ) ) {
-        $output .= '<span class="wpinv-description">' . esc_html( $args['desc'] ) . '</span>';
+    if (!empty($args['desc'])) {
+        $output .= '<span class="wpinv-description">' . esc_html($args['desc']) . '</span>';
     }
     $output .= '</span>';
 
     return $output;
 }
 
-function wpinv_html_ajax_user_search( $args = array() ) {
+function wpinv_html_ajax_user_search($args = array()) {
     $defaults = array(
         'name'        => 'user_id',
         'value'       => null,
-        'placeholder' => __( 'Enter username', 'invoicing' ),
+        'placeholder' => __('Enter username', 'invoicing'),
         'label'       => null,
         'desc'        => null,
         'class'       => '',
@@ -670,13 +670,13 @@ 
         'data'        => false
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
     $args['class'] = 'wpinv-ajax-user-search ' . $args['class'];
 
     $output  = '<span class="wpinv_user_search_wrap">';
-        $output .= wpinv_html_text( $args );
-        $output .= '<span class="wpinv_user_search_results hidden"><a class="wpinv-ajax-user-cancel" title="' . __( 'Cancel', 'invoicing' ) . '" aria-label="' . __( 'Cancel', 'invoicing' ) . '" href="#">x</a><span></span></span>';
+        $output .= wpinv_html_text($args);
+        $output .= '<span class="wpinv_user_search_results hidden"><a class="wpinv-ajax-user-cancel" title="' . __('Cancel', 'invoicing') . '" aria-label="' . __('Cancel', 'invoicing') . '" href="#">x</a><span></span></span>';
     $output .= '</span>';
 
     return $output;
@@ -685,7 +685,7 @@ 
 function wpinv_ip_geolocation() {
     global $wpinv_euvat;
     
-    $ip         = !empty( $_GET['ip'] ) ? sanitize_text_field( $_GET['ip'] ) : '';    
+    $ip         = !empty($_GET['ip']) ? sanitize_text_field($_GET['ip']) : '';    
     $content    = '';
     $iso        = '';
     $country    = '';
@@ -696,69 +696,69 @@ 
     $credit     = '';
     $address    = '';
     
-    if ( wpinv_get_option( 'vat_ip_lookup' ) == 'geoip2' && $geoip2_city = $wpinv_euvat->geoip2_city_record( $ip ) ) {
+    if (wpinv_get_option('vat_ip_lookup') == 'geoip2' && $geoip2_city = $wpinv_euvat->geoip2_city_record($ip)) {
         try {
             $iso        = $geoip2_city->country->isoCode;
             $country    = $geoip2_city->country->name;
-            $region     = !empty( $geoip2_city->subdivisions ) && !empty( $geoip2_city->subdivisions[0]->name ) ? $geoip2_city->subdivisions[0]->name : '';
+            $region     = !empty($geoip2_city->subdivisions) && !empty($geoip2_city->subdivisions[0]->name) ? $geoip2_city->subdivisions[0]->name : '';
             $city       = $geoip2_city->city->name;
             $longitude  = $geoip2_city->location->longitude;
             $latitude   = $geoip2_city->location->latitude;
-            $credit     = __( 'Geolocated using the information by MaxMind, available from <a href="http://www.maxmind.com" target="_blank">www.maxmind.com</a>', 'invoicing' );
-        } catch( Exception $e ) { }
+            $credit     = __('Geolocated using the information by MaxMind, available from <a href="http://www.maxmind.com" target="_blank">www.maxmind.com</a>', 'invoicing');
+        } catch (Exception $e) { }
     }
     
-    if ( !( $iso && $longitude && $latitude ) && function_exists( 'simplexml_load_file' ) ) {
+    if (!($iso && $longitude && $latitude) && function_exists('simplexml_load_file')) {
         try {
-            $load_xml = simplexml_load_file( 'http://www.geoplugin.net/xml.gp?ip=' . $ip );
+            $load_xml = simplexml_load_file('http://www.geoplugin.net/xml.gp?ip=' . $ip);
             
-            if ( !empty( $load_xml ) && isset( $load_xml->geoplugin_countryCode ) && !empty( $load_xml->geoplugin_latitude ) && !empty( $load_xml->geoplugin_longitude ) ) {
+            if (!empty($load_xml) && isset($load_xml->geoplugin_countryCode) && !empty($load_xml->geoplugin_latitude) && !empty($load_xml->geoplugin_longitude)) {
                 $iso        = $load_xml->geoplugin_countryCode;
                 $country    = $load_xml->geoplugin_countryName;
-                $region     = !empty( $load_xml->geoplugin_regionName ) ? $load_xml->geoplugin_regionName : '';
-                $city       = !empty( $load_xml->geoplugin_city ) ? $load_xml->geoplugin_city : '';
+                $region     = !empty($load_xml->geoplugin_regionName) ? $load_xml->geoplugin_regionName : '';
+                $city       = !empty($load_xml->geoplugin_city) ? $load_xml->geoplugin_city : '';
                 $longitude  = $load_xml->geoplugin_longitude;
                 $latitude   = $load_xml->geoplugin_latitude;
                 $credit     = $load_xml->geoplugin_credit;
-                $credit     = __( 'Geolocated using the information by geoPlugin, available from <a href="http://www.geoplugin.com" target="_blank">www.geoplugin.com</a>', 'invoicing' ) . '<br>' . $load_xml->geoplugin_credit;
+                $credit     = __('Geolocated using the information by geoPlugin, available from <a href="http://www.geoplugin.com" target="_blank">www.geoplugin.com</a>', 'invoicing') . '<br>' . $load_xml->geoplugin_credit;
             }
-        } catch( Exception $e ) { }
+        } catch (Exception $e) { }
     }
     
-    if ( $iso && $longitude && $latitude ) {
-        if ( $city ) {
+    if ($iso && $longitude && $latitude) {
+        if ($city) {
             $address .= $city . ', ';
         }
         
-        if ( $region ) {
+        if ($region) {
             $address .= $region . ', ';
         }
         
         $address .= $country . ' (' . $iso . ')';
-        $content = '<p>'. sprintf( __( '<b>Address:</b> %s', 'invoicing' ), $address ) . '</p>';
-        $content .= '<p>'. $credit . '</p>';
+        $content = '<p>' . sprintf(__('<b>Address:</b> %s', 'invoicing'), $address) . '</p>';
+        $content .= '<p>' . $credit . '</p>';
     } else {
-        $content = '<p>'. sprintf( __( 'Unable to find geolocation for the IP address: %s', 'invoicing' ), $ip ) . '</p>';
+        $content = '<p>' . sprintf(__('Unable to find geolocation for the IP address: %s', 'invoicing'), $ip) . '</p>';
     }
     ?>
 <!DOCTYPE html>
-<html><head><title><?php echo sprintf( __( 'IP: %s', 'invoicing' ), $ip );?></title><meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0-rc.1/leaflet.css" /><style>html,body{height:100%;margin:0;padding:0;width:100%}body{text-align:center;background:#fff;color:#222;font-size:small;}body,p{font-family: arial,sans-serif}#map{margin:auto;width:100%;height:calc(100% - 120px);min-height:240px}</style></head>
+<html><head><title><?php echo sprintf(__('IP: %s', 'invoicing'), $ip); ?></title><meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=no"><link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0-rc.1/leaflet.css" /><style>html,body{height:100%;margin:0;padding:0;width:100%}body{text-align:center;background:#fff;color:#222;font-size:small;}body,p{font-family: arial,sans-serif}#map{margin:auto;width:100%;height:calc(100% - 120px);min-height:240px}</style></head>
 <body>
-    <?php if ( $latitude && $latitude ) { ?>
+    <?php if ($latitude && $latitude) { ?>
     <div id="map"></div>
         <script src="//cdnjs.cloudflare.com/ajax/libs/leaflet/1.0.0-rc.1/leaflet.js"></script>
         <script type="text/javascript">
         var osmUrl = 'http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
             osmAttrib = '&copy; <a href="http://openstreetmap.org/copyright">OpenStreetMap</a> contributors',
             osm = L.tileLayer(osmUrl, {maxZoom: 18, attribution: osmAttrib}),
-            latlng = new L.LatLng(<?php echo $latitude;?>, <?php echo $longitude;?>);
+            latlng = new L.LatLng(<?php echo $latitude; ?>, <?php echo $longitude; ?>);
 
         var map = new L.Map('map', {center: latlng, zoom: 12, layers: [osm]});
 
         var marker = new L.Marker(latlng);
         map.addLayer(marker);
 
-        marker.bindPopup("<p><?php esc_attr_e( $address );?></p>");
+        marker.bindPopup("<p><?php esc_attr_e($address); ?></p>");
     </script>
     <?php } ?>
     <div style="height:100px"><?php echo $content; ?></div>
@@ -766,18 +766,18 @@ 
 <?php
     exit;
 }
-add_action( 'wp_ajax_wpinv_ip_geolocation', 'wpinv_ip_geolocation' );
-add_action( 'wp_ajax_nopriv_wpinv_ip_geolocation', 'wpinv_ip_geolocation' );
+add_action('wp_ajax_wpinv_ip_geolocation', 'wpinv_ip_geolocation');
+add_action('wp_ajax_nopriv_wpinv_ip_geolocation', 'wpinv_ip_geolocation');
 
 // Set up the template for the invoice.
-function wpinv_template( $template ) {
+function wpinv_template($template) {
     global $post, $wp_query;
     
-    if ( ( is_single() || is_404() ) && !empty( $post->ID ) && (get_post_type( $post->ID ) == 'wpi_invoice' or get_post_type( $post->ID ) == 'wpi_quote')) {
-        if ( wpinv_user_can_view_invoice( $post->ID ) ) {
-            $template = wpinv_get_template_part( 'wpinv-invoice-print', false, false );
+    if ((is_single() || is_404()) && !empty($post->ID) && (get_post_type($post->ID) == 'wpi_invoice' or get_post_type($post->ID) == 'wpi_quote')) {
+        if (wpinv_user_can_view_invoice($post->ID)) {
+            $template = wpinv_get_template_part('wpinv-invoice-print', false, false);
         } else {
-            $template = wpinv_get_template_part( 'wpinv-invalid-access', false, false );
+            $template = wpinv_get_template_part('wpinv-invalid-access', false, false);
         }
     }
 
@@ -786,7 +786,7 @@ 
 
 function wpinv_get_business_address() {
     $business_address   = wpinv_store_address();
-    $business_address   = !empty( $business_address ) ? wpautop( wp_kses_post( $business_address ) ) : '';
+    $business_address   = !empty($business_address) ? wpautop(wp_kses_post($business_address)) : '';
     
     /*
     $default_country    = wpinv_get_default_country();
@@ -810,7 +810,7 @@ 
     
     $business_address = $business_address ? '<div class="address">' . $business_address . '</div>' : '';
     
-    return apply_filters( 'wpinv_get_business_address', $business_address );
+    return apply_filters('wpinv_get_business_address', $business_address);
 }
 
 function wpinv_display_from_address() {
@@ -820,107 +820,107 @@ 
     if (empty($from_name)) {
         $from_name = wpinv_get_business_name();
     }
-    ?><div class="from col-xs-2"><strong><?php _e( 'From:', 'invoicing' ) ?></strong></div>
+    ?><div class="from col-xs-2"><strong><?php _e('From:', 'invoicing') ?></strong></div>
     <div class="wrapper col-xs-10">
-        <div class="name"><?php echo esc_html( $from_name ); ?></div>
-        <?php if ( $address = wpinv_get_business_address() ) { ?>
-        <div class="address"><?php echo wpautop( wp_kses_post( $address ) );?></div>
+        <div class="name"><?php echo esc_html($from_name); ?></div>
+        <?php if ($address = wpinv_get_business_address()) { ?>
+        <div class="address"><?php echo wpautop(wp_kses_post($address)); ?></div>
         <?php } ?>
-        <?php if ( $email_from = wpinv_mail_get_from_address() ) { ?>
-        <div class="email_from"><?php echo wp_sprintf( __( 'Email: %s', 'invoicing' ), $email_from );?></div>
+        <?php if ($email_from = wpinv_mail_get_from_address()) { ?>
+        <div class="email_from"><?php echo wp_sprintf(__('Email: %s', 'invoicing'), $email_from); ?></div>
         <?php } ?>
     </div>
     <?php
 }
 
-function wpinv_watermark( $id = 0 ) {
-    $output = wpinv_get_watermark( $id );
+function wpinv_watermark($id = 0) {
+    $output = wpinv_get_watermark($id);
     
-    return apply_filters( 'wpinv_get_watermark', $output, $id );
+    return apply_filters('wpinv_get_watermark', $output, $id);
 }
 
-function wpinv_get_watermark( $id ) {
-    if ( !$id > 0 ) {
+function wpinv_get_watermark($id) {
+    if (!$id > 0) {
         return NULL;
     }
-    $invoice = wpinv_get_invoice( $id );
+    $invoice = wpinv_get_invoice($id);
     
-    if ( !empty( $invoice ) && "wpi_invoice" === $invoice->post_type ) {
-        if ( $invoice->is_paid() ) {
-            return __( 'Paid', 'invoicing' );
+    if (!empty($invoice) && "wpi_invoice" === $invoice->post_type) {
+        if ($invoice->is_paid()) {
+            return __('Paid', 'invoicing');
         }
-        if ( $invoice->is_refunded() ) {
-            return __( 'Refunded', 'invoicing' );
+        if ($invoice->is_refunded()) {
+            return __('Refunded', 'invoicing');
         }
-        if ( $invoice->has_status( array( 'wpi-cancelled' ) ) ) {
-            return __( 'Cancelled', 'invoicing' );
+        if ($invoice->has_status(array('wpi-cancelled'))) {
+            return __('Cancelled', 'invoicing');
         }
     }
     
     return NULL;
 }
 
-function wpinv_display_invoice_details( $invoice ) {
+function wpinv_display_invoice_details($invoice) {
     global $wpinv_euvat;
     
     $invoice_id = $invoice->ID;
     $vat_name   = $wpinv_euvat->get_vat_name();
     $use_taxes  = wpinv_use_taxes();
     
-    $invoice_status = wpinv_get_invoice_status( $invoice_id );
+    $invoice_status = wpinv_get_invoice_status($invoice_id);
     ?>
     <table class="table table-bordered table-sm">
-        <?php if ( $invoice_number = wpinv_get_invoice_number( $invoice_id ) ) { ?>
+        <?php if ($invoice_number = wpinv_get_invoice_number($invoice_id)) { ?>
             <tr class="wpi-row-number">
-                <th><?php echo apply_filters( 'wpinv_invoice_number_label', __( 'Invoice Number', 'invoicing' ), $invoice ); ?></th>
-                <td><?php echo esc_html( $invoice_number ); ?></td>
+                <th><?php echo apply_filters('wpinv_invoice_number_label', __('Invoice Number', 'invoicing'), $invoice); ?></th>
+                <td><?php echo esc_html($invoice_number); ?></td>
             </tr>
         <?php } ?>
         <tr class="wpi-row-status">
-            <th><?php echo apply_filters( 'wpinv_invoice_status_label', __( 'Invoice Status', 'invoicing' ), $invoice ); ?></th>
-            <td><?php echo wpinv_invoice_status_label( $invoice_status, wpinv_get_invoice_status( $invoice_id, true ) ); ?></td>
+            <th><?php echo apply_filters('wpinv_invoice_status_label', __('Invoice Status', 'invoicing'), $invoice); ?></th>
+            <td><?php echo wpinv_invoice_status_label($invoice_status, wpinv_get_invoice_status($invoice_id, true)); ?></td>
         </tr>
-        <?php if ( $invoice->is_renewal() ) { ?>
+        <?php if ($invoice->is_renewal()) { ?>
         <tr class="wpi-row-parent">
-            <th><?php echo apply_filters( 'wpinv_invoice_parent_invoice_label', __( 'Parent Invoice', 'invoicing' ), $invoice ); ?></th>
-            <td><?php echo wpinv_invoice_link( $invoice->parent_invoice ); ?></td>
+            <th><?php echo apply_filters('wpinv_invoice_parent_invoice_label', __('Parent Invoice', 'invoicing'), $invoice); ?></th>
+            <td><?php echo wpinv_invoice_link($invoice->parent_invoice); ?></td>
         </tr>
         <?php } ?>
-        <?php if ( ( $gateway_name = wpinv_get_payment_gateway_name( $invoice_id ) ) && ( $invoice->is_paid() || $invoice->is_refunded() ) ) { ?>
+        <?php if (($gateway_name = wpinv_get_payment_gateway_name($invoice_id)) && ($invoice->is_paid() || $invoice->is_refunded())) { ?>
             <tr class="wpi-row-gateway">
-                <th><?php echo apply_filters( 'wpinv_invoice_payment_method_label', __( 'Payment Method', 'invoicing' ), $invoice ); ?></th>
+                <th><?php echo apply_filters('wpinv_invoice_payment_method_label', __('Payment Method', 'invoicing'), $invoice); ?></th>
                 <td><?php echo $gateway_name; ?></td>
             </tr>
         <?php } ?>
-        <?php if ( $invoice_date = wpinv_get_invoice_date( $invoice_id ) ) { ?>
+        <?php if ($invoice_date = wpinv_get_invoice_date($invoice_id)) { ?>
             <tr class="wpi-row-date">
-                <th><?php echo apply_filters( 'wpinv_invoice_date_label', __( 'Invoice Date', 'invoicing' ), $invoice ); ?></th>
+                <th><?php echo apply_filters('wpinv_invoice_date_label', __('Invoice Date', 'invoicing'), $invoice); ?></th>
                 <td><?php echo $invoice_date; ?></td>
             </tr>
         <?php } ?>
-        <?php do_action( 'wpinv_display_details_before_due_date', $invoice_id ); ?>
-        <?php if ( wpinv_get_option( 'overdue_active' ) && $invoice->needs_payment() && ( $due_date = $invoice->get_due_date( true ) ) ) { ?>
+        <?php do_action('wpinv_display_details_before_due_date', $invoice_id); ?>
+        <?php if (wpinv_get_option('overdue_active') && $invoice->needs_payment() && ($due_date = $invoice->get_due_date(true))) { ?>
             <tr class="wpi-row-date">
-                <th><?php echo apply_filters( 'wpinv_invoice_due_date_label', __( 'Due Date', 'invoicing' ), $invoice ); ?></th>
+                <th><?php echo apply_filters('wpinv_invoice_due_date_label', __('Due Date', 'invoicing'), $invoice); ?></th>
                 <td><?php echo $due_date; ?></td>
             </tr>
         <?php } ?>
-        <?php do_action( 'wpinv_display_details_after_due_date', $invoice_id ); ?>
-        <?php if ( $owner_vat_number = $wpinv_euvat->get_vat_number() ) { ?>
+        <?php do_action('wpinv_display_details_after_due_date', $invoice_id); ?>
+        <?php if ($owner_vat_number = $wpinv_euvat->get_vat_number()) { ?>
             <tr class="wpi-row-ovatno">
-                <th><?php echo apply_filters( 'wpinv_invoice_owner_vat_number_label', wp_sprintf( __( 'Owner %s Number', 'invoicing' ), $vat_name ), $invoice, $vat_name ); ?></th>
+                <th><?php echo apply_filters('wpinv_invoice_owner_vat_number_label', wp_sprintf(__('Owner %s Number', 'invoicing'), $vat_name), $invoice, $vat_name); ?></th>
                 <td><?php echo $owner_vat_number; ?></td>
             </tr>
         <?php } ?>
-        <?php if ( $use_taxes && ( $user_vat_number = wpinv_get_invoice_vat_number( $invoice_id ) ) ) { ?>
+        <?php if ($use_taxes && ($user_vat_number = wpinv_get_invoice_vat_number($invoice_id))) { ?>
             <tr class="wpi-row-uvatno">
-                <th><?php echo apply_filters( 'wpinv_invoice_user_vat_number_label', wp_sprintf( __( 'Invoice %s Number', 'invoicing' ), $vat_name ), $invoice, $vat_name ); ?></th>
+                <th><?php echo apply_filters('wpinv_invoice_user_vat_number_label', wp_sprintf(__('Invoice %s Number', 'invoicing'), $vat_name), $invoice, $vat_name); ?></th>
                 <td><?php echo $user_vat_number; ?></td>
             </tr>
         <?php } ?>
         <tr class="table-active tr-total wpi-row-total">
-            <th><strong><?php _e( 'Total Amount', 'invoicing' ) ?></strong></th>
-            <td><strong><?php echo wpinv_payment_total( $invoice_id, true ); ?></strong></td>
+            <th><strong><?php _e('Total Amount', 'invoicing') ?></strong></th>
+            <td><strong><?php echo wpinv_payment_total($invoice_id, true); ?></strong></td>
         </tr>
     </table>
 <?php
@@ -936,84 +936,84 @@ 
  * @param  string $separator How to separate address lines.
  * @return string
  */
-function wpinv_get_invoice_address_markup( $billing_details, $separator = '<br/>' ) {
+function wpinv_get_invoice_address_markup($billing_details, $separator = '<br/>') {
 
     // Retrieve the address markup...
-    $country= empty( $billing_details['country'] ) ? '' : $billing_details['country'];
-    $format = wpinv_get_full_address_format( $country );
+    $country = empty($billing_details['country']) ? '' : $billing_details['country'];
+    $format = wpinv_get_full_address_format($country);
 
     // ... and the replacements.
-    $replacements = wpinv_get_invoice_address_replacements( $billing_details );
+    $replacements = wpinv_get_invoice_address_replacements($billing_details);
 
-    $formatted_address = str_ireplace( array_keys( $replacements ), $replacements, $format );
+    $formatted_address = str_ireplace(array_keys($replacements), $replacements, $format);
     
 	// Remove unavailable tags.
-    $formatted_address = preg_replace( "/\{\{\w+\}\}/", '', $formatted_address );
+    $formatted_address = preg_replace("/\{\{\w+\}\}/", '', $formatted_address);
 
     // Clean up white space.
-	$formatted_address = preg_replace( '/  +/', ' ', trim( $formatted_address ) );
-    $formatted_address = preg_replace( '/\n\n+/', "\n", $formatted_address );
+	$formatted_address = preg_replace('/  +/', ' ', trim($formatted_address));
+    $formatted_address = preg_replace('/\n\n+/', "\n", $formatted_address);
     
     // Break newlines apart and remove empty lines/trim commas and white space.
-	$formatted_address = array_filter( array_map( 'wpinv_trim_formatted_address_line', explode( "\n", $formatted_address ) ) );
+	$formatted_address = array_filter(array_map('wpinv_trim_formatted_address_line', explode("\n", $formatted_address)));
 
     // Add html breaks.
-	$formatted_address = implode( $separator, $formatted_address );
+	$formatted_address = implode($separator, $formatted_address);
 
 	// We're done!
 	return $formatted_address;
     
 }
 
-function wpinv_display_to_address( $invoice_id = 0 ) {
-    $invoice = wpinv_get_invoice( $invoice_id );
+function wpinv_display_to_address($invoice_id = 0) {
+    $invoice = wpinv_get_invoice($invoice_id);
     
-    if ( empty( $invoice ) ) {
+    if (empty($invoice)) {
         return NULL;
     }
     
     $billing_details = $invoice->get_user_info();
-    $output = '<div class="to col-xs-2"><strong>' . __( 'To:', 'invoicing' ) . '</strong></div>';
+    $output = '<div class="to col-xs-2"><strong>' . __('To:', 'invoicing') . '</strong></div>';
     $output .= '<div class="wrapper col-xs-10">';
     
     ob_start();
-    do_action( 'wpinv_display_to_address_top', $invoice );
+    do_action('wpinv_display_to_address_top', $invoice);
     $output .= ob_get_clean();
     
-    $address_row = wpinv_get_invoice_address_markup( $billing_details );
+    $address_row = wpinv_get_invoice_address_markup($billing_details);
 
-    if ( $address_row ) {
+    if ($address_row) {
         $output .= '<div class="address">' . $address_row . '</div>';
     }
 
-    if ( $phone = $invoice->get_phone() ) {
-        $output .= '<div class="phone">' . wp_sprintf( __( 'Phone: %s', 'invoicing' ), esc_html( $phone ) ) . '</div>';
+    if ($phone = $invoice->get_phone()) {
+        $output .= '<div class="phone">' . wp_sprintf(__('Phone: %s', 'invoicing'), esc_html($phone)) . '</div>';
     }
-    if ( $email = $invoice->get_email() ) {
-        $output .= '<div class="email">' . wp_sprintf( __( 'Email: %s' , 'invoicing'), esc_html( $email ) ) . '</div>';
+    if ($email = $invoice->get_email()) {
+        $output .= '<div class="email">' . wp_sprintf(__('Email: %s', 'invoicing'), esc_html($email)) . '</div>';
     }
 
     ob_start();
-    do_action( 'wpinv_display_to_address_bottom', $invoice );
+    do_action('wpinv_display_to_address_bottom', $invoice);
     $output .= ob_get_clean();
     
     $output .= '</div>';
-    $output = apply_filters( 'wpinv_display_to_address', $output, $invoice );
+    $output = apply_filters('wpinv_display_to_address', $output, $invoice);
 
     echo $output;
 }
 
-function wpinv_display_line_items( $invoice_id = 0 ) {
+function wpinv_display_line_items($invoice_id = 0) {
     global $wpinv_euvat, $ajax_cart_details;
-    $invoice            = wpinv_get_invoice( $invoice_id );
+    $invoice            = wpinv_get_invoice($invoice_id);
     $quantities_enabled = wpinv_item_quantities_enabled();
     $use_taxes          = wpinv_use_taxes();
-    if ( !$use_taxes && (float)$invoice->get_tax() > 0 ) {
+    if (!$use_taxes && (float) $invoice->get_tax() > 0) {
         $use_taxes = true;
     }
-    $zero_tax           = !(float)$invoice->get_tax() > 0 ? true : false;
-    $tax_label           = $use_taxes && $invoice->has_vat() ? $wpinv_euvat->get_vat_name() : __( 'Tax', 'invoicing' );
-    $tax_title          = !$zero_tax && $use_taxes ? ( wpinv_prices_include_tax() ? wp_sprintf( __( '(%s Incl.)', 'invoicing' ), $tax_label ) : wp_sprintf( __( '(%s Excl.)', 'invoicing' ), $tax_label ) ) : '';
+    $zero_tax           = !(float) $invoice->get_tax() > 0 ? true : false;
+    $tax_label = $use_taxes && $invoice->has_vat() ? $wpinv_euvat->get_vat_name() : __('Tax', 'invoicing');
+    $tax_title          = !$zero_tax && $use_taxes ? (wpinv_prices_include_tax() ? wp_sprintf(__('(%s Incl.)', 'invoicing'), $tax_label) : wp_sprintf(__('(%s Excl.)', 'invoicing'), $tax_label)) : '';
 
     $cart_details       = $invoice->get_cart_details();
     $ajax_cart_details  = $cart_details;
@@ -1022,67 +1022,67 @@ 
     <table class="table table-sm table-bordered table-responsive">
         <thead>
             <tr>
-                <th class="name"><strong><?php _e( "Item Name", "invoicing" );?></strong></th>
-                <th class="rate"><strong><?php _e( "Price", "invoicing" );?></strong></th>
+                <th class="name"><strong><?php _e("Item Name", "invoicing"); ?></strong></th>
+                <th class="rate"><strong><?php _e("Price", "invoicing"); ?></strong></th>
                 <?php if ($quantities_enabled) { ?>
-                    <th class="qty"><strong><?php _e( "Qty", "invoicing" );?></strong></th>
+                    <th class="qty"><strong><?php _e("Qty", "invoicing"); ?></strong></th>
                 <?php } ?>
                 <?php if ($use_taxes && !$zero_tax) { ?>
                     <th class="tax"><strong><?php echo $tax_label . ' <span class="normal small">(%)</span>'; ?></strong></th>
                 <?php } ?>
-                <th class="total"><strong><?php echo __( "Item Total", "invoicing" ) . ' <span class="normal small">' . $tax_title . '<span>';?></strong></th>
+                <th class="total"><strong><?php echo __("Item Total", "invoicing") . ' <span class="normal small">' . $tax_title . '<span>'; ?></strong></th>
             </tr>
         </thead>
         <tbody>
         <?php 
-            if ( !empty( $cart_details ) ) {
-                do_action( 'wpinv_display_line_items_start', $invoice );
+            if (!empty($cart_details)) {
+                do_action('wpinv_display_line_items_start', $invoice);
 
                 $count = 0;
                 $cols  = 3;
-                foreach ( $cart_details as $key => $cart_item ) {
-                    $item_id    = !empty($cart_item['id']) ? absint( $cart_item['id'] ) : '';
-                    $item_price = isset($cart_item["item_price"]) ? wpinv_round_amount( $cart_item["item_price"] ) : 0;
-                    $line_total = isset($cart_item["subtotal"]) ? wpinv_round_amount( $cart_item["subtotal"] ) : 0;
-                    $quantity   = !empty($cart_item['quantity']) && (int)$cart_item['quantity'] > 0 ? absint( $cart_item['quantity'] ) : 1;
+                foreach ($cart_details as $key => $cart_item) {
+                    $item_id    = !empty($cart_item['id']) ? absint($cart_item['id']) : '';
+                    $item_price = isset($cart_item["item_price"]) ? wpinv_round_amount($cart_item["item_price"]) : 0;
+                    $line_total = isset($cart_item["subtotal"]) ? wpinv_round_amount($cart_item["subtotal"]) : 0;
+                    $quantity   = !empty($cart_item['quantity']) && (int) $cart_item['quantity'] > 0 ? absint($cart_item['quantity']) : 1;
 
-                    $item       = $item_id ? new WPInv_Item( $item_id ) : NULL;
+                    $item       = $item_id ? new WPInv_Item($item_id) : NULL;
                     $summary    = '';
-	                $item_name    = '';
+	                $item_name = '';
                     $cols       = 3;
-                    if ( !empty($item) ) {
+                    if (!empty($item)) {
                         $item_name  = $item->get_name();
                         $summary    = $item->get_summary();
                     }
-                    $item_name  = !empty($cart_item['name']) ? $cart_item['name'] : $item_name;
+                    $item_name = !empty($cart_item['name']) ? $cart_item['name'] : $item_name;
 
-                    $summary = apply_filters( 'wpinv_print_invoice_line_item_summary', $summary, $cart_item, $item, $invoice );
+                    $summary = apply_filters('wpinv_print_invoice_line_item_summary', $summary, $cart_item, $item, $invoice);
 
                     $item_tax       = '';
                     $tax_rate       = '';
-                    if ( $use_taxes && $cart_item['tax'] > 0 && $cart_item['subtotal'] > 0 ) {
-                        $item_tax = wpinv_price( wpinv_format_amount( $cart_item['tax'] ), $invoice->get_currency() );
-                        $tax_rate = !empty( $cart_item['vat_rate'] ) ? $cart_item['vat_rate'] : ( $cart_item['tax'] / $cart_item['subtotal'] ) * 100;
-                        $tax_rate = $tax_rate > 0 ? (float)wpinv_round_amount( $tax_rate, 4 ) : '';
+                    if ($use_taxes && $cart_item['tax'] > 0 && $cart_item['subtotal'] > 0) {
+                        $item_tax = wpinv_price(wpinv_format_amount($cart_item['tax']), $invoice->get_currency());
+                        $tax_rate = !empty($cart_item['vat_rate']) ? $cart_item['vat_rate'] : ($cart_item['tax'] / $cart_item['subtotal']) * 100;
+                        $tax_rate = $tax_rate > 0 ? (float) wpinv_round_amount($tax_rate, 4) : '';
                         $tax_rate = $tax_rate != '' ? ' <small class="tax-rate">(' . $tax_rate . '%)</small>' : '';
                     }
 
                     $line_item_tax = $item_tax . $tax_rate;
 
-                    if ( $line_item_tax === '' ) {
+                    if ($line_item_tax === '') {
                         $line_item_tax = 0; // Zero tax
                     }
 
-                    $action = apply_filters( 'wpinv_display_line_item_action', '', $cart_item, $invoice, $cols );
+                    $action = apply_filters('wpinv_display_line_item_action', '', $cart_item, $invoice, $cols);
 
-                    $line_item = '<tr class="row-' . ( ($count % 2 == 0) ? 'even' : 'odd' ) . ' wpinv-item">';
-                        $line_item .= '<td class="name">' . $action. esc_html__( $item_name, 'invoicing' ) . wpinv_get_item_suffix( $item );
-                        if ( $summary !== '' ) {
-                            $line_item .= '<br/><small class="meta">' . wpautop( wp_kses_post( $summary ) ) . '</small>';
+                    $line_item = '<tr class="row-' . (($count % 2 == 0) ? 'even' : 'odd') . ' wpinv-item">';
+                        $line_item .= '<td class="name">' . $action . esc_html__($item_name, 'invoicing') . wpinv_get_item_suffix($item);
+                        if ($summary !== '') {
+                            $line_item .= '<br/><small class="meta">' . wpautop(wp_kses_post($summary)) . '</small>';
                         }
                         $line_item .= '</td>';
 
-                        $line_item .= '<td class="rate">' . esc_html__( wpinv_price( wpinv_format_amount( $item_price ), $invoice->get_currency() ) ) . '</td>';
+                        $line_item .= '<td class="rate">' . esc_html__(wpinv_price(wpinv_format_amount($item_price), $invoice->get_currency())) . '</td>';
                         if ($quantities_enabled) {
                             $cols++;
                             $line_item .= '<td class="qty">' . $quantity . '</td>';
@@ -1091,55 +1091,55 @@ 
                             $cols++;
                             $line_item .= '<td class="tax">' . $line_item_tax . '</td>';
                         }
-                        $line_item .= '<td class="total">' . esc_html__( wpinv_price( wpinv_format_amount( $line_total ), $invoice->get_currency() ) ) . '</td>';
+                        $line_item .= '<td class="total">' . esc_html__(wpinv_price(wpinv_format_amount($line_total), $invoice->get_currency())) . '</td>';
                     $line_item .= '</tr>';
 
-                    echo apply_filters( 'wpinv_display_line_item', $line_item, $cart_item, $invoice, $cols );
+                    echo apply_filters('wpinv_display_line_item', $line_item, $cart_item, $invoice, $cols);
 
                     $count++;
                 }
 
-                do_action( 'wpinv_display_before_subtotal', $invoice, $cols );
+                do_action('wpinv_display_before_subtotal', $invoice, $cols);
                 ?>
                 <tr class="row-sub-total row_odd">
-                    <td class="rate" colspan="<?php echo ( $cols - 1 ); ?>"><?php echo apply_filters( 'wpinv_print_cart_subtotal_label', '<strong>' . __( 'Sub Total', 'invoicing' ) . ':</strong>', $invoice ); ?></td>
-                    <td class="total"><strong><?php _e( wpinv_subtotal( $invoice_id, true ) ) ?></strong></td>
+                    <td class="rate" colspan="<?php echo ($cols - 1); ?>"><?php echo apply_filters('wpinv_print_cart_subtotal_label', '<strong>' . __('Sub Total', 'invoicing') . ':</strong>', $invoice); ?></td>
+                    <td class="total"><strong><?php _e(wpinv_subtotal($invoice_id, true)) ?></strong></td>
                 </tr>
                 <?php
-                do_action( 'wpinv_display_after_subtotal', $invoice, $cols );
+                do_action('wpinv_display_after_subtotal', $invoice, $cols);
                 
-                if ( wpinv_discount( $invoice_id, false ) > 0 ) {
-                    do_action( 'wpinv_display_before_discount', $invoice, $cols );
+                if (wpinv_discount($invoice_id, false) > 0) {
+                    do_action('wpinv_display_before_discount', $invoice, $cols);
                     ?>
                         <tr class="row-discount">
-                            <td class="rate" colspan="<?php echo ( $cols - 1 ); ?>"><?php wpinv_get_discount_label( wpinv_discount_code( $invoice_id ) ); ?>:</td>
-                            <td class="total"><?php echo wpinv_discount( $invoice_id, true, true ); ?></td>
+                            <td class="rate" colspan="<?php echo ($cols - 1); ?>"><?php wpinv_get_discount_label(wpinv_discount_code($invoice_id)); ?>:</td>
+                            <td class="total"><?php echo wpinv_discount($invoice_id, true, true); ?></td>
                         </tr>
                     <?php
-                    do_action( 'wpinv_display_after_discount', $invoice, $cols );
+                    do_action('wpinv_display_after_discount', $invoice, $cols);
                 }
 
-                if ( $use_taxes ) {
-                    do_action( 'wpinv_display_before_tax', $invoice, $cols );
+                if ($use_taxes) {
+                    do_action('wpinv_display_before_tax', $invoice, $cols);
                     ?>
                     <tr class="row-tax">
-                        <td class="rate" colspan="<?php echo ( $cols - 1 ); ?>"><?php echo apply_filters( 'wpinv_print_cart_tax_label', '<strong>' . $tax_label . ':</strong>', $invoice ); ?></td>
-                        <td class="total"><?php _e( wpinv_tax( $invoice_id, true ) ) ?></td>
+                        <td class="rate" colspan="<?php echo ($cols - 1); ?>"><?php echo apply_filters('wpinv_print_cart_tax_label', '<strong>' . $tax_label . ':</strong>', $invoice); ?></td>
+                        <td class="total"><?php _e(wpinv_tax($invoice_id, true)) ?></td>
                     </tr>
                     <?php
-                    do_action( 'wpinv_display_after_tax', $invoice, $cols );
+                    do_action('wpinv_display_after_tax', $invoice, $cols);
                 }
 
-                do_action( 'wpinv_display_before_total', $invoice, $cols );
+                do_action('wpinv_display_before_total', $invoice, $cols);
                 ?>
                 <tr class="table-active row-total">
-                    <td class="rate" colspan="<?php echo ( $cols - 1 ); ?>"><?php echo apply_filters( 'wpinv_print_cart_total_label', '<strong>' . __( 'Total', 'invoicing' ) . ':</strong>', $invoice ); ?></td>
-                    <td class="total"><strong><?php _e( wpinv_payment_total( $invoice_id, true ) ) ?></strong></td>
+                    <td class="rate" colspan="<?php echo ($cols - 1); ?>"><?php echo apply_filters('wpinv_print_cart_total_label', '<strong>' . __('Total', 'invoicing') . ':</strong>', $invoice); ?></td>
+                    <td class="total"><strong><?php _e(wpinv_payment_total($invoice_id, true)) ?></strong></td>
                 </tr>
                 <?php
-                do_action( 'wpinv_display_after_total', $invoice, $cols );
+                do_action('wpinv_display_after_total', $invoice, $cols);
 
-                do_action( 'wpinv_display_line_end', $invoice, $cols );
+                do_action('wpinv_display_line_end', $invoice, $cols);
             }
         ?>
         </tbody>
@@ -1151,56 +1151,56 @@ 
 /**
  * @param WPInv_Invoice $invoice
  */
-function wpinv_display_invoice_notes( $invoice ) {
+function wpinv_display_invoice_notes($invoice) {
 
-    $notes = wpinv_get_invoice_notes( $invoice->ID, 'customer' );
+    $notes = wpinv_get_invoice_notes($invoice->ID, 'customer');
 
-    if ( empty( $notes ) ) {
+    if (empty($notes)) {
         return;
     }
 
     echo '<div class="wpi_invoice_notes_container">';
-    echo '<h2>' . __( 'Invoice Notes', 'invoicing' ) .'</h2>';
+    echo '<h2>' . __('Invoice Notes', 'invoicing') . '</h2>';
     echo '<ul class="wpi_invoice_notes">';
 
-    foreach( $notes as $note ) {
-        wpinv_get_invoice_note_line_item( $note );
+    foreach ($notes as $note) {
+        wpinv_get_invoice_note_line_item($note);
     }
 
     echo '</ul>';
     echo '</div>';
 }
-add_action( 'wpinv_invoice_print_after_line_items', 'wpinv_display_invoice_notes' );
+add_action('wpinv_invoice_print_after_line_items', 'wpinv_display_invoice_notes');
 
-function wpinv_display_invoice_totals( $invoice_id = 0 ) {
+function wpinv_display_invoice_totals($invoice_id = 0) {
     $use_taxes = wpinv_use_taxes();
 
-    do_action( 'wpinv_before_display_totals_table', $invoice_id ); 
+    do_action('wpinv_before_display_totals_table', $invoice_id); 
     ?>
     <table class="table table-sm table-bordered table-responsive">
         <tbody>
-            <?php do_action( 'wpinv_before_display_totals' ); ?>
+            <?php do_action('wpinv_before_display_totals'); ?>
             <tr class="row-sub-total">
-                <td class="rate"><strong><?php _e( 'Sub Total', 'invoicing' ); ?></strong></td>
-                <td class="total"><strong><?php _e( wpinv_subtotal( $invoice_id, true ) ) ?></strong></td>
+                <td class="rate"><strong><?php _e('Sub Total', 'invoicing'); ?></strong></td>
+                <td class="total"><strong><?php _e(wpinv_subtotal($invoice_id, true)) ?></strong></td>
             </tr>
-            <?php do_action( 'wpinv_after_display_totals' ); ?>
-            <?php if ( wpinv_discount( $invoice_id, false ) > 0 ) { ?>
+            <?php do_action('wpinv_after_display_totals'); ?>
+            <?php if (wpinv_discount($invoice_id, false) > 0) { ?>
                 <tr class="row-discount">
-                    <td class="rate"><?php wpinv_get_discount_label( wpinv_discount_code( $invoice_id ) ); ?></td>
-                    <td class="total"><?php echo wpinv_discount( $invoice_id, true, true ); ?></td>
+                    <td class="rate"><?php wpinv_get_discount_label(wpinv_discount_code($invoice_id)); ?></td>
+                    <td class="total"><?php echo wpinv_discount($invoice_id, true, true); ?></td>
                 </tr>
-            <?php do_action( 'wpinv_after_display_discount' ); ?>
+            <?php do_action('wpinv_after_display_discount'); ?>
             <?php } ?>
-            <?php if ( $use_taxes ) { ?>
+            <?php if ($use_taxes) { ?>
             <tr class="row-tax">
-                <td class="rate"><?php _e( 'Tax', 'invoicing' ); ?></td>
-                <td class="total"><?php _e( wpinv_tax( $invoice_id, true ) ) ?></td>
+                <td class="rate"><?php _e('Tax', 'invoicing'); ?></td>
+                <td class="total"><?php _e(wpinv_tax($invoice_id, true)) ?></td>
             </tr>
-            <?php do_action( 'wpinv_after_display_tax' ); ?>
+            <?php do_action('wpinv_after_display_tax'); ?>
             <?php } ?>
-            <?php if ( $fees = wpinv_get_fees( $invoice_id ) ) { ?>
-                <?php foreach ( $fees as $fee ) { ?>
+            <?php if ($fees = wpinv_get_fees($invoice_id)) { ?>
+                <?php foreach ($fees as $fee) { ?>
                     <tr class="row-fee">
                         <td class="rate"><?php echo $fee['label']; ?></td>
                         <td class="total"><?php echo $fee['amount_display']; ?></td>
@@ -1208,82 +1208,82 @@ 
                 <?php } ?>
             <?php } ?>
             <tr class="table-active row-total">
-                <td class="rate"><strong><?php _e( 'Total', 'invoicing' ) ?></strong></td>
-                <td class="total"><strong><?php _e( wpinv_payment_total( $invoice_id, true ) ) ?></strong></td>
+                <td class="rate"><strong><?php _e('Total', 'invoicing') ?></strong></td>
+                <td class="total"><strong><?php _e(wpinv_payment_total($invoice_id, true)) ?></strong></td>
             </tr>
-            <?php do_action( 'wpinv_after_totals' ); ?>
+            <?php do_action('wpinv_after_totals'); ?>
         </tbody>
 
     </table>
 
-    <?php do_action( 'wpinv_after_totals_table' );
+    <?php do_action('wpinv_after_totals_table');
 }
 
-function wpinv_display_payments_info( $invoice_id = 0, $echo = true ) {
-    $invoice = wpinv_get_invoice( $invoice_id );
+function wpinv_display_payments_info($invoice_id = 0, $echo = true) {
+    $invoice = wpinv_get_invoice($invoice_id);
 
     ob_start();
-    do_action( 'wpinv_before_display_payments_info', $invoice_id );
-    if ( ( $gateway_title = $invoice->get_gateway_title() ) || $invoice->is_paid() || $invoice->is_refunded() ) {
+    do_action('wpinv_before_display_payments_info', $invoice_id);
+    if (($gateway_title = $invoice->get_gateway_title()) || $invoice->is_paid() || $invoice->is_refunded()) {
         ?>
         <div class="wpi-payment-info">
-            <p class="wpi-payment-gateway"><?php echo wp_sprintf( __( 'Payment via %s', 'invoicing' ), $gateway_title ? $gateway_title : __( 'Manually', 'invoicing' ) ); ?></p>
-            <?php if ( $gateway_title ) { ?>
-            <p class="wpi-payment-transid"><?php echo wp_sprintf( __( 'Transaction ID: %s', 'invoicing' ), $invoice->get_transaction_id() ); ?></p>
+            <p class="wpi-payment-gateway"><?php echo wp_sprintf(__('Payment via %s', 'invoicing'), $gateway_title ? $gateway_title : __('Manually', 'invoicing')); ?></p>
+            <?php if ($gateway_title) { ?>
+            <p class="wpi-payment-transid"><?php echo wp_sprintf(__('Transaction ID: %s', 'invoicing'), $invoice->get_transaction_id()); ?></p>
             <?php } ?>
         </div>
         <?php
     }
-    do_action( 'wpinv_after_display_payments_info', $invoice_id );
+    do_action('wpinv_after_display_payments_info', $invoice_id);
     $outout = ob_get_clean();
 
-    if ( $echo ) {
+    if ($echo) {
         echo $outout;
     } else {
         return $outout;
     }
 }
 
-function wpinv_display_style( $invoice ) {
-    wp_register_style( 'wpinv-single-style', WPINV_PLUGIN_URL . 'assets/css/invoice.css', array(), WPINV_VERSION );
+function wpinv_display_style($invoice) {
+    wp_register_style('wpinv-single-style', WPINV_PLUGIN_URL . 'assets/css/invoice.css', array(), WPINV_VERSION);
 
-    wp_print_styles( 'open-sans' );
-    wp_print_styles( 'wpinv-single-style' );
+    wp_print_styles('open-sans');
+    wp_print_styles('wpinv-single-style');
 
     $custom_css = wpinv_get_option('template_custom_css');
-    if(isset($custom_css) && !empty($custom_css)){
-        $custom_css     = wp_kses( $custom_css, array( '\'', '\"' ) );
-        $custom_css     = str_replace( '&gt;', '>', $custom_css );
+    if (isset($custom_css) && !empty($custom_css)) {
+        $custom_css     = wp_kses($custom_css, array('\'', '\"'));
+        $custom_css     = str_replace('&gt;', '>', $custom_css);
         echo '<style type="text/css">';
         echo $custom_css;
         echo '</style>';
     }
 }
-add_action( 'wpinv_invoice_print_head', 'wpinv_display_style' );
-add_action( 'wpinv_invalid_invoice_head', 'wpinv_display_style' );
+add_action('wpinv_invoice_print_head', 'wpinv_display_style');
+add_action('wpinv_invalid_invoice_head', 'wpinv_display_style');
 
 function wpinv_checkout_billing_details() {
-    $invoice_id = (int)wpinv_get_invoice_cart_id();
+    $invoice_id = (int) wpinv_get_invoice_cart_id();
     if (empty($invoice_id)) {
-        wpinv_error_log( 'Invoice id not found', 'ERROR', __FILE__, __LINE__ );
+        wpinv_error_log('Invoice id not found', 'ERROR', __FILE__, __LINE__);
         return null;
     }
 
-    $invoice = wpinv_get_invoice_cart( $invoice_id );
+    $invoice = wpinv_get_invoice_cart($invoice_id);
     if (empty($invoice)) {
-        wpinv_error_log( 'Invoice not found', 'ERROR', __FILE__, __LINE__ );
+        wpinv_error_log('Invoice not found', 'ERROR', __FILE__, __LINE__);
         return null;
     }
     $user_id        = $invoice->get_user_id();
     $user_info      = $invoice->get_user_info();
-    $address_info   = wpinv_get_user_address( $user_id );
+    $address_info   = wpinv_get_user_address($user_id);
 
-    if ( empty( $user_info['first_name'] ) && !empty( $user_info['first_name'] ) ) {
+    if (empty($user_info['first_name']) && !empty($user_info['first_name'])) {
         $user_info['first_name'] = $user_info['first_name'];
         $user_info['last_name'] = $user_info['last_name'];
     }
 
-    if ( ( ( empty( $user_info['country'] ) && !empty( $address_info['country'] ) ) || ( empty( $user_info['state'] ) && !empty( $address_info['state'] ) && $user_info['country'] == $address_info['country'] ) ) ) {
+    if (((empty($user_info['country']) && !empty($address_info['country'])) || (empty($user_info['state']) && !empty($address_info['state']) && $user_info['country'] == $address_info['country']))) {
         $user_info['country']   = $address_info['country'];
         $user_info['state']     = $address_info['state'];
         $user_info['city']      = $address_info['city'];
@@ -1299,98 +1299,98 @@ 
         'address'
     );
 
-    foreach ( $address_fields as $field ) {
-        if ( empty( $user_info[$field] ) ) {
+    foreach ($address_fields as $field) {
+        if (empty($user_info[$field])) {
             $user_info[$field] = $address_info[$field];
         }
     }
 
-    return apply_filters( 'wpinv_checkout_billing_details', $user_info, $invoice );
+    return apply_filters('wpinv_checkout_billing_details', $user_info, $invoice);
 }
 
 function wpinv_admin_get_line_items($invoice = array()) {
     $item_quantities    = wpinv_item_quantities_enabled();
     $use_taxes          = wpinv_use_taxes();
 
-    if ( empty( $invoice ) ) {
+    if (empty($invoice)) {
         return NULL;
     }
 
     $cart_items = $invoice->get_cart_details();
-    if ( empty( $cart_items ) ) {
+    if (empty($cart_items)) {
         return NULL;
     }
     ob_start();
 
-    do_action( 'wpinv_admin_before_line_items', $cart_items, $invoice );
+    do_action('wpinv_admin_before_line_items', $cart_items, $invoice);
 
     $count = 0;
-    foreach ( $cart_items as $key => $cart_item ) {
+    foreach ($cart_items as $key => $cart_item) {
         $item_id    = $cart_item['id'];
-        $wpi_item   = $item_id > 0 ? new WPInv_Item( $item_id ) : NULL;
+        $wpi_item   = $item_id > 0 ? new WPInv_Item($item_id) : NULL;
 
         if (empty($wpi_item)) {
             continue;
         }
 
-        $item_price     = wpinv_price( wpinv_format_amount( $cart_item['item_price'] ), $invoice->get_currency() );
-        $quantity       = !empty( $cart_item['quantity'] ) && $cart_item['quantity'] > 0 ? $cart_item['quantity'] : 1;
-        $item_subtotal  = wpinv_price( wpinv_format_amount( $cart_item['subtotal'] ), $invoice->get_currency() );
+        $item_price     = wpinv_price(wpinv_format_amount($cart_item['item_price']), $invoice->get_currency());
+        $quantity       = !empty($cart_item['quantity']) && $cart_item['quantity'] > 0 ? $cart_item['quantity'] : 1;
+        $item_subtotal  = wpinv_price(wpinv_format_amount($cart_item['subtotal']), $invoice->get_currency());
         $can_remove     = true;
 
-        $summary = apply_filters( 'wpinv_admin_invoice_line_item_summary', '', $cart_item, $wpi_item, $invoice );
+        $summary = apply_filters('wpinv_admin_invoice_line_item_summary', '', $cart_item, $wpi_item, $invoice);
 
         $item_tax       = '';
         $tax_rate       = '';
-        if ( $cart_item['tax'] > 0 && $cart_item['subtotal'] > 0 ) {
-            $item_tax = wpinv_price( wpinv_format_amount( $cart_item['tax'] ), $invoice->get_currency() );
-            $tax_rate = !empty( $cart_item['vat_rate'] ) ? $cart_item['vat_rate'] : ( $cart_item['tax'] / $cart_item['subtotal'] ) * 100;
-            $tax_rate = $tax_rate > 0 ? (float)wpinv_round_amount( $tax_rate, 4 ) : '';
+        if ($cart_item['tax'] > 0 && $cart_item['subtotal'] > 0) {
+            $item_tax = wpinv_price(wpinv_format_amount($cart_item['tax']), $invoice->get_currency());
+            $tax_rate = !empty($cart_item['vat_rate']) ? $cart_item['vat_rate'] : ($cart_item['tax'] / $cart_item['subtotal']) * 100;
+            $tax_rate = $tax_rate > 0 ? (float) wpinv_round_amount($tax_rate, 4) : '';
             $tax_rate = $tax_rate != '' ? ' <span class="tax-rate">(' . $tax_rate . '%)</span>' : '';
         }
         $line_item_tax = $item_tax . $tax_rate;
 
-        if ( $line_item_tax === '' ) {
+        if ($line_item_tax === '') {
             $line_item_tax = 0; // Zero tax
         }
 
-        $line_item = '<tr class="item item-' . ( ($count % 2 == 0) ? 'even' : 'odd' ) . '" data-item-id="' . $item_id . '">';
+        $line_item = '<tr class="item item-' . (($count % 2 == 0) ? 'even' : 'odd') . '" data-item-id="' . $item_id . '">';
             $line_item .= '<td class="id">' . $item_id . '</td>';
-            $line_item .= '<td class="title"><a href="' . get_edit_post_link( $item_id ) . '" target="_blank">' . $cart_item['name'] . '</a>' . wpinv_get_item_suffix( $wpi_item );
-            if ( $summary !== '' ) {
-                $line_item .= '<span class="meta">' . wpautop( wp_kses_post( $summary ) ) . '</span>';
+            $line_item .= '<td class="title"><a href="' . get_edit_post_link($item_id) . '" target="_blank">' . $cart_item['name'] . '</a>' . wpinv_get_item_suffix($wpi_item);
+            if ($summary !== '') {
+                $line_item .= '<span class="meta">' . wpautop(wp_kses_post($summary)) . '</span>';
             }
             $line_item .= '</td>';
             $line_item .= '<td class="price">' . $item_price . '</td>';
             
-            if ( $item_quantities ) {
-                if ( count( $cart_items ) == 1 && $quantity <= 1 ) {
+            if ($item_quantities) {
+                if (count($cart_items) == 1 && $quantity <= 1) {
                     $can_remove = false;
                 }
                 $line_item .= '<td class="qty" data-quantity="' . $quantity . '">&nbsp;&times;&nbsp;' . $quantity . '</td>';
             } else {
-                if ( count( $cart_items ) == 1 ) {
+                if (count($cart_items) == 1) {
                     $can_remove = false;
                 }
             }
             $line_item .= '<td class="total">' . $item_subtotal . '</td>';
             
-            if ( $use_taxes ) {
+            if ($use_taxes) {
                 $line_item .= '<td class="tax">' . $line_item_tax . '</td>';
             }
             $line_item .= '<td class="action">';
-            if ( !$invoice->is_paid() && !$invoice->is_refunded() ) {
+            if (!$invoice->is_paid() && !$invoice->is_refunded()) {
                 $line_item .= '<i class="fa fa-remove wpinv-item-remove"></i>';
             }
             $line_item .= '</td>';
         $line_item .= '</tr>';
 
-        echo apply_filters( 'wpinv_admin_line_item', $line_item, $cart_item, $invoice );
+        echo apply_filters('wpinv_admin_line_item', $line_item, $cart_item, $invoice);
 
         $count++;
     } 
 
-    do_action( 'wpinv_admin_after_line_items', $cart_items, $invoice );
+    do_action('wpinv_admin_after_line_items', $cart_items, $invoice);
 
     return ob_get_clean();
 }
@@ -1402,32 +1402,32 @@ 
     $wpi_checkout_id = wpinv_get_invoice_cart_id();
 
     //Maybe update the prices
-    if(! empty( $_GET['wpi_dynamic_item'] ) && ! empty( $_GET['wpi_dynamic_price'] ) ) {
+    if (!empty($_GET['wpi_dynamic_item']) && !empty($_GET['wpi_dynamic_price'])) {
 
         //If the invoice exists, update it with new pricing details
-        if (! empty( $wpi_checkout_id ) ) {
+        if (!empty($wpi_checkout_id)) {
 
             $_invoice       = wpinv_get_invoice_cart();
             $_cart_details  = $_invoice->get_cart_details();
-            $_dynamic_item  = sanitize_text_field( $_GET['wpi_dynamic_item'] );
+            $_dynamic_item  = sanitize_text_field($_GET['wpi_dynamic_item']);
 
             //First, fetch the item
-            $item    = new WPInv_Item( $_dynamic_item );
+            $item = new WPInv_Item($_dynamic_item);
     
             //Next, ensure it supports dynamic pricing...
-            if( $item->supports_dynamic_pricing() && $item->get_is_dynamic_pricing() ) {
+            if ($item->supports_dynamic_pricing() && $item->get_is_dynamic_pricing()) {
                 
                 //... and that the new price is not lower than the minimum price
-                $_dynamic_price = (float) wpinv_sanitize_amount( sanitize_text_field( $_GET['wpi_dynamic_price'] ) );
-                if( $_dynamic_price < $item->get_minimum_price() ) {
+                $_dynamic_price = (float) wpinv_sanitize_amount(sanitize_text_field($_GET['wpi_dynamic_price']));
+                if ($_dynamic_price < $item->get_minimum_price()) {
                     $_dynamic_price = $item->get_minimum_price();
                 }
 
                 //Finally, update our invoice with the new price
-                if ( !empty( $_cart_details ) ) {
+                if (!empty($_cart_details)) {
 
-                    foreach ( $_cart_details as $key => $item ) {
-                        if ( !empty( $item['id'] ) && $_dynamic_item == $item['id'] ) {
+                    foreach ($_cart_details as $key => $item) {
+                        if (!empty($item['id']) && $_dynamic_item == $item['id']) {
                             $_cart_details[$key]['custom_price'] = $_dynamic_price;
                             $_cart_details[$key]['item_price']   = $_dynamic_price;
                         }
@@ -1435,8 +1435,8 @@ 
 
                     $_meta = $_invoice->get_meta();
                     $_meta['cart_details'] = $_cart_details;
-                    $_invoice->set( 'payment_meta', $_meta );
-                    $_invoice->set( 'cart_details', $_cart_details );
+                    $_invoice->set('payment_meta', $_meta);
+                    $_invoice->set('cart_details', $_cart_details);
                     $_invoice->recalculate_totals();
 
                 }
@@ -1447,60 +1447,60 @@ 
 
     }
 
-    $form_action  = esc_url( wpinv_get_checkout_uri() );
+    $form_action = esc_url(wpinv_get_checkout_uri());
 
     ob_start();
-	    do_action( 'wpinv_checkout_content_before' );
+	    do_action('wpinv_checkout_content_before');
         echo '<div id="wpinv_checkout_wrap">';
 
-        if ( wpinv_get_cart_contents() || wpinv_cart_has_fees() ) {
+        if (wpinv_get_cart_contents() || wpinv_cart_has_fees()) {
             ?>
             <div id="wpinv_checkout_form_wrap" class="wpinv_clearfix table-responsive">
-                <?php do_action( 'wpinv_before_checkout_form' ); ?>
+                <?php do_action('wpinv_before_checkout_form'); ?>
                 <form id="wpinv_checkout_form" class="wpi-form" action="<?php echo $form_action; ?>" method="POST">
                     <?php
-                    do_action( 'wpinv_checkout_form_top' );
-                    do_action( 'wpinv_checkout_billing_info' );
-                    do_action( 'wpinv_checkout_cart' );
-                    do_action( 'wpinv_payment_mode_select'  );
-                    do_action( 'wpinv_checkout_form_bottom' )
+                    do_action('wpinv_checkout_form_top');
+                    do_action('wpinv_checkout_billing_info');
+                    do_action('wpinv_checkout_cart');
+                    do_action('wpinv_payment_mode_select');
+                    do_action('wpinv_checkout_form_bottom')
                     ?>
                 </form>
-                <?php do_action( 'wpinv_after_purchase_form' ); ?>
+                <?php do_action('wpinv_after_purchase_form'); ?>
             </div><!--end #wpinv_checkout_form_wrap-->
         <?php
         } else {
-            do_action( 'wpinv_cart_empty' );
+            do_action('wpinv_cart_empty');
         }
         echo '</div><!--end #wpinv_checkout_wrap-->';
-	    do_action( 'wpinv_checkout_content_after' );
+	    do_action('wpinv_checkout_content_after');
     return ob_get_clean();
 }
 
-function wpinv_checkout_cart( $cart_details = array(), $echo = true ) {
+function wpinv_checkout_cart($cart_details = array(), $echo = true) {
     global $ajax_cart_details;
     $ajax_cart_details = $cart_details;
 
     ob_start();
-    do_action( 'wpinv_before_checkout_cart' );
+    do_action('wpinv_before_checkout_cart');
     echo '<div id="wpinv_checkout_cart_form" method="post">';
         echo '<div id="wpinv_checkout_cart_wrap">';
-            wpinv_get_template_part( 'wpinv-checkout-cart' );
+            wpinv_get_template_part('wpinv-checkout-cart');
         echo '</div>';
     echo '</div>';
-    do_action( 'wpinv_after_checkout_cart' );
+    do_action('wpinv_after_checkout_cart');
     $content = ob_get_clean();
 
-    if ( $echo ) {
+    if ($echo) {
         echo $content;
     } else {
         return $content;
     }
 }
-add_action( 'wpinv_checkout_cart', 'wpinv_checkout_cart', 10 );
+add_action('wpinv_checkout_cart', 'wpinv_checkout_cart', 10);
 
 function wpinv_empty_cart_message() {
-	return apply_filters( 'wpinv_empty_cart_message', '<span class="wpinv_empty_cart">' . __( 'Your cart is empty.', 'invoicing' ) . '</span>' );
+	return apply_filters('wpinv_empty_cart_message', '<span class="wpinv_empty_cart">' . __('Your cart is empty.', 'invoicing') . '</span>');
 }
 
 /**
@@ -1512,83 +1512,83 @@ 
 function wpinv_empty_checkout_cart() {
 	echo wpinv_empty_cart_message();
 }
-add_action( 'wpinv_cart_empty', 'wpinv_empty_checkout_cart' );
+add_action('wpinv_cart_empty', 'wpinv_empty_checkout_cart');
 
 function wpinv_update_cart_button() {
-    if ( !wpinv_item_quantities_enabled() )
+    if (!wpinv_item_quantities_enabled())
         return;
 ?>
-    <input type="submit" name="wpinv_update_cart_submit" class="wpinv-submit wpinv-no-js button" value="<?php _e( 'Update Cart', 'invoicing' ); ?>"/>
+    <input type="submit" name="wpinv_update_cart_submit" class="wpinv-submit wpinv-no-js button" value="<?php _e('Update Cart', 'invoicing'); ?>"/>
     <input type="hidden" name="wpi_action" value="update_cart"/>
 <?php
 }
 
 function wpinv_checkout_cart_columns() {
     $default = 3;
-    if ( wpinv_item_quantities_enabled() ) {
+    if (wpinv_item_quantities_enabled()) {
         $default++;
     }
     
-    if ( wpinv_use_taxes() ) {
+    if (wpinv_use_taxes()) {
         $default++;
     }
 
-    return apply_filters( 'wpinv_checkout_cart_columns', $default );
+    return apply_filters('wpinv_checkout_cart_columns', $default);
 }
 
 function wpinv_display_cart_messages() {
     global $wpi_session;
 
-    $messages = $wpi_session->get( 'wpinv_cart_messages' );
+    $messages = $wpi_session->get('wpinv_cart_messages');
 
-    if ( $messages ) {
-        foreach ( $messages as $message_id => $message ) {
+    if ($messages) {
+        foreach ($messages as $message_id => $message) {
             // Try and detect what type of message this is
-            if ( strpos( strtolower( $message ), 'error' ) ) {
+            if (strpos(strtolower($message), 'error')) {
                 $type = 'error';
-            } elseif ( strpos( strtolower( $message ), 'success' ) ) {
+            } elseif (strpos(strtolower($message), 'success')) {
                 $type = 'success';
             } else {
                 $type = 'info';
             }
 
-            $classes = apply_filters( 'wpinv_' . $type . '_class', array( 'wpinv_errors', 'wpinv-alert', 'wpinv-alert-' . $type ) );
+            $classes = apply_filters('wpinv_' . $type . '_class', array('wpinv_errors', 'wpinv-alert', 'wpinv-alert-' . $type));
 
-            echo '<div class="' . implode( ' ', $classes ) . '">';
+            echo '<div class="' . implode(' ', $classes) . '">';
                 // Loop message codes and display messages
                     echo '<p class="wpinv_error" id="wpinv_msg_' . $message_id . '">' . $message . '</p>';
             echo '</div>';
         }
 
         // Remove all of the cart saving messages
-        $wpi_session->set( 'wpinv_cart_messages', null );
+        $wpi_session->set('wpinv_cart_messages', null);
     }
 }
-add_action( 'wpinv_before_checkout_cart', 'wpinv_display_cart_messages' );
+add_action('wpinv_before_checkout_cart', 'wpinv_display_cart_messages');
 
 function wpinv_discount_field() {
-    if ( isset( $_GET['wpi-gateway'] ) && wpinv_is_ajax_disabled() ) {
+    if (isset($_GET['wpi-gateway']) && wpinv_is_ajax_disabled()) {
         return; // Only show before a payment method has been selected if ajax is disabled
     }
 
-    if ( !wpinv_is_checkout() ) {
+    if (!wpinv_is_checkout()) {
         return;
     }
 
-    if ( wpinv_has_active_discounts() && wpinv_get_cart_total() ) {
+    if (wpinv_has_active_discounts() && wpinv_get_cart_total()) {
     ?>
     <div id="wpinv-discount-field" class="panel panel-default">
         <div class="panel-body">
             <p>
-                <label class="wpinv-label" for="wpinv_discount_code"><strong><?php _e( 'Discount', 'invoicing' ); ?></strong></label>
-                <span class="wpinv-description"><?php _e( 'Enter a discount code if you have one.', 'invoicing' ); ?></span>
+                <label class="wpinv-label" for="wpinv_discount_code"><strong><?php _e('Discount', 'invoicing'); ?></strong></label>
+                <span class="wpinv-description"><?php _e('Enter a discount code if you have one.', 'invoicing'); ?></span>
             </p>
             <div class="form-group row">
                 <div class="col-sm-4">
-                    <input class="wpinv-input form-control" type="text" id="wpinv_discount_code" name="wpinv_discount_code" placeholder="<?php _e( 'Enter discount code', 'invoicing' ); ?>"/>
+                    <input class="wpinv-input form-control" type="text" id="wpinv_discount_code" name="wpinv_discount_code" placeholder="<?php _e('Enter discount code', 'invoicing'); ?>"/>
                 </div>
                 <div class="col-sm-3">
-                    <button id="wpi-apply-discount" type="button" class="btn btn-success btn-sm"><?php _e( 'Apply Discount', 'invoicing' ); ?></button>
+                    <button id="wpi-apply-discount" type="button" class="btn btn-success btn-sm"><?php _e('Apply Discount', 'invoicing'); ?></button>
                 </div>
                 <div style="clear:both"></div>
                 <div class="col-sm-12 wpinv-discount-msg">
@@ -1601,10 +1601,10 @@ 
 <?php
     }
 }
-add_action( 'wpinv_after_checkout_cart', 'wpinv_discount_field', -10 );
+add_action('wpinv_after_checkout_cart', 'wpinv_discount_field', -10);
 
 function wpinv_agree_to_terms_js() {
-    if ( wpinv_get_option( 'show_agree_to_terms', false ) ) {
+    if (wpinv_get_option('show_agree_to_terms', false)) {
 ?>
 <script type="text/javascript">
     jQuery(document).ready(function($){
@@ -1619,125 +1619,125 @@ 
 <?php
     }
 }
-add_action( 'wpinv_checkout_form_top', 'wpinv_agree_to_terms_js' );
+add_action('wpinv_checkout_form_top', 'wpinv_agree_to_terms_js');
 
 function wpinv_payment_mode_select() {
-    $gateways = wpinv_get_enabled_payment_gateways( true );
-    $gateways = apply_filters( 'wpinv_payment_gateways_on_cart', $gateways );
-    $invoice = wpinv_get_invoice( 0, true );
+    $gateways = wpinv_get_enabled_payment_gateways(true);
+    $gateways = apply_filters('wpinv_payment_gateways_on_cart', $gateways);
+    $invoice = wpinv_get_invoice(0, true);
 
     do_action('wpinv_payment_mode_top');
-    $invoice_id = (int)$invoice->ID;
-    $chosen_gateway = wpinv_get_chosen_gateway( $invoice_id );
+    $invoice_id = (int) $invoice->ID;
+    $chosen_gateway = wpinv_get_chosen_gateway($invoice_id);
     ?>
-    <div id="wpinv_payment_mode_select" data-gateway="<?php echo $chosen_gateway; ?>" <?php echo ( $invoice->is_free() ? 'style="display:none;" data-free="1"' : '' ); ?>>
-            <?php do_action( 'wpinv_payment_mode_before_gateways_wrap' ); ?>
+    <div id="wpinv_payment_mode_select" data-gateway="<?php echo $chosen_gateway; ?>" <?php echo ($invoice->is_free() ? 'style="display:none;" data-free="1"' : ''); ?>>
+            <?php do_action('wpinv_payment_mode_before_gateways_wrap'); ?>
             <div id="wpinv-payment-mode-wrap" class="panel panel-default">
-                <div class="panel-heading"><h3 class="panel-title"><?php _e( 'Select Payment Method', 'invoicing' ); ?></h3></div>
+                <div class="panel-heading"><h3 class="panel-title"><?php _e('Select Payment Method', 'invoicing'); ?></h3></div>
                 <div class="panel-body list-group wpi-payment_methods">
                     <?php
-                    do_action( 'wpinv_payment_mode_before_gateways' );
-
-                    if ( !empty( $gateways ) ) {
-                        foreach ( $gateways as $gateway_id => $gateway ) {
-                            $checked       = checked( $gateway_id, $chosen_gateway, false );
-                            $button_label  = wpinv_get_gateway_button_label( $gateway_id );
-                            $gateway_label = wpinv_get_gateway_checkout_label( $gateway_id );
-                            $description   = wpinv_get_gateway_description( $gateway_id );
+                    do_action('wpinv_payment_mode_before_gateways');
+
+                    if (!empty($gateways)) {
+                        foreach ($gateways as $gateway_id => $gateway) {
+                            $checked       = checked($gateway_id, $chosen_gateway, false);
+                            $button_label  = wpinv_get_gateway_button_label($gateway_id);
+                            $gateway_label = wpinv_get_gateway_checkout_label($gateway_id);
+                            $description   = wpinv_get_gateway_description($gateway_id);
                             ?>
                             <div class="list-group-item">
                                 <div class="radio">
-                                    <label><input type="radio" data-button-text="<?php echo esc_attr( $button_label );?>" value="<?php echo esc_attr( $gateway_id ) ;?>" <?php echo $checked ;?> id="wpi_gateway_<?php echo esc_attr( $gateway_id );?>" name="wpi-gateway" class="wpi-pmethod"><?php echo esc_html( $gateway_label ); ?></label>
+                                    <label><input type="radio" data-button-text="<?php echo esc_attr($button_label); ?>" value="<?php echo esc_attr($gateway_id); ?>" <?php echo $checked; ?> id="wpi_gateway_<?php echo esc_attr($gateway_id); ?>" name="wpi-gateway" class="wpi-pmethod"><?php echo esc_html($gateway_label); ?></label>
                                 </div>
-                                <div style="display:none;" class="payment_box wpi_gateway_<?php echo esc_attr( $gateway_id );?>" role="alert">
-                                    <?php if ( !empty( $description ) ) { ?>
-                                        <div class="wpi-gateway-desc alert alert-info"><?php _e( $description, 'invoicing' ); ?></div>
+                                <div style="display:none;" class="payment_box wpi_gateway_<?php echo esc_attr($gateway_id); ?>" role="alert">
+                                    <?php if (!empty($description)) { ?>
+                                        <div class="wpi-gateway-desc alert alert-info"><?php _e($description, 'invoicing'); ?></div>
                                     <?php } ?>
-                                    <?php do_action( 'wpinv_' . $gateway_id . '_cc_form', $invoice_id ) ;?>
+                                    <?php do_action('wpinv_' . $gateway_id . '_cc_form', $invoice_id); ?>
                                 </div>
                             </div>
                             <?php
                         }
                     } else {
-                        echo '<div class="alert alert-warning">'. __( 'No payment gateway active', 'invoicing' ) .'</div>';
+                        echo '<div class="alert alert-warning">' . __('No payment gateway active', 'invoicing') . '</div>';
                     }
 
-                    do_action( 'wpinv_payment_mode_after_gateways' );
+                    do_action('wpinv_payment_mode_after_gateways');
                     ?>
                 </div>
             </div>
-            <?php do_action( 'wpinv_payment_mode_after_gateways_wrap' ); ?>
+            <?php do_action('wpinv_payment_mode_after_gateways_wrap'); ?>
     </div>
     <?php
     do_action('wpinv_payment_mode_bottom');
 }
-add_action( 'wpinv_payment_mode_select', 'wpinv_payment_mode_select' );
+add_action('wpinv_payment_mode_select', 'wpinv_payment_mode_select');
 
 function wpinv_checkout_billing_info() {
-    if ( wpinv_is_checkout() ) {
+    if (wpinv_is_checkout()) {
         $billing_details    = wpinv_checkout_billing_details();
-        $selected_country   = !empty( $billing_details['country'] ) ? $billing_details['country'] : wpinv_default_billing_country();
+        $selected_country   = !empty($billing_details['country']) ? $billing_details['country'] : wpinv_default_billing_country();
         ?>
         <div id="wpinv-fields" class="clearfix">
             <div id="wpi-billing" class="wpi-billing clearfix panel panel-default">
-                <div class="panel-heading"><h3 class="panel-title"><?php _e( 'Billing Details', 'invoicing' );?></h3></div>
+                <div class="panel-heading"><h3 class="panel-title"><?php _e('Billing Details', 'invoicing'); ?></h3></div>
                 <div id="wpinv-fields-box" class="panel-body">
-                    <?php do_action( 'wpinv_checkout_billing_fields_first', $billing_details ); ?>
+                    <?php do_action('wpinv_checkout_billing_fields_first', $billing_details); ?>
                     <p class="wpi-cart-field wpi-col2 wpi-colf">
-                        <label for="wpinv_first_name" class="wpi-label"><?php _e( 'First Name', 'invoicing' );?><?php if ( wpinv_get_option( 'fname_mandatory' ) ) { echo '<span class="wpi-required">*</span>'; } ?></label>
+                        <label for="wpinv_first_name" class="wpi-label"><?php _e('First Name', 'invoicing'); ?><?php if (wpinv_get_option('fname_mandatory')) { echo '<span class="wpi-required">*</span>'; } ?></label>
                         <?php
-                        echo wpinv_html_text( array(
+                        echo wpinv_html_text(array(
                                 'id'            => 'wpinv_first_name',
                                 'name'          => 'wpinv_first_name',
                                 'value'         => $billing_details['first_name'],
                                 'class'         => 'wpi-input form-control',
-                                'placeholder'   => __( 'First name', 'invoicing' ),
-                                'required'      => (bool)wpinv_get_option( 'fname_mandatory' ),
-                            ) );
+                                'placeholder'   => __('First name', 'invoicing'),
+                                'required'      => (bool) wpinv_get_option('fname_mandatory'),
+                            ));
                         ?>
                     </p>
                     <p class="wpi-cart-field wpi-col2 wpi-coll">
-                        <label for="wpinv_last_name" class="wpi-label"><?php _e( 'Last Name', 'invoicing' );?><?php if ( wpinv_get_option( 'lname_mandatory' ) ) { echo '<span class="wpi-required">*</span>'; } ?></label>
+                        <label for="wpinv_last_name" class="wpi-label"><?php _e('Last Name', 'invoicing'); ?><?php if (wpinv_get_option('lname_mandatory')) { echo '<span class="wpi-required">*</span>'; } ?></label>
                         <?php
-                        echo wpinv_html_text( array(
+                        echo wpinv_html_text(array(
                                 'id'            => 'wpinv_last_name',
                                 'name'          => 'wpinv_last_name',
                                 'value'         => $billing_details['last_name'],
                                 'class'         => 'wpi-input form-control',
-                                'placeholder'   => __( 'Last name', 'invoicing' ),
-                                'required'      => (bool)wpinv_get_option( 'lname_mandatory' ),
-                            ) );
+                                'placeholder'   => __('Last name', 'invoicing'),
+                                'required'      => (bool) wpinv_get_option('lname_mandatory'),
+                            ));
                         ?>
                     </p>
                     <p class="wpi-cart-field wpi-col2 wpi-colf">
-                        <label for="wpinv_address" class="wpi-label"><?php _e( 'Address', 'invoicing' );?><?php if ( wpinv_get_option( 'address_mandatory' ) ) { echo '<span class="wpi-required">*</span>'; } ?></label>
+                        <label for="wpinv_address" class="wpi-label"><?php _e('Address', 'invoicing'); ?><?php if (wpinv_get_option('address_mandatory')) { echo '<span class="wpi-required">*</span>'; } ?></label>
                         <?php
-                        echo wpinv_html_text( array(
+                        echo wpinv_html_text(array(
                                 'id'            => 'wpinv_address',
                                 'name'          => 'wpinv_address',
                                 'value'         => $billing_details['address'],
                                 'class'         => 'wpi-input form-control',
-                                'placeholder'   => __( 'Address', 'invoicing' ),
-                                'required'      => (bool)wpinv_get_option( 'address_mandatory' ),
-                            ) );
+                                'placeholder'   => __('Address', 'invoicing'),
+                                'required'      => (bool) wpinv_get_option('address_mandatory'),
+                            ));
                         ?>
                     </p>
                     <p class="wpi-cart-field wpi-col2 wpi-coll">
-                        <label for="wpinv_city" class="wpi-label"><?php _e( 'City', 'invoicing' );?><?php if ( wpinv_get_option( 'city_mandatory' ) ) { echo '<span class="wpi-required">*</span>'; } ?></label>
+                        <label for="wpinv_city" class="wpi-label"><?php _e('City', 'invoicing'); ?><?php if (wpinv_get_option('city_mandatory')) { echo '<span class="wpi-required">*</span>'; } ?></label>
                         <?php
-                        echo wpinv_html_text( array(
+                        echo wpinv_html_text(array(
                                 'id'            => 'wpinv_city',
                                 'name'          => 'wpinv_city',
                                 'value'         => $billing_details['city'],
                                 'class'         => 'wpi-input form-control',
-                                'placeholder'   => __( 'City', 'invoicing' ),
-                                'required'      => (bool)wpinv_get_option( 'city_mandatory' ),
-                            ) );
+                                'placeholder'   => __('City', 'invoicing'),
+                                'required'      => (bool) wpinv_get_option('city_mandatory'),
+                            ));
                         ?>
                     </p>
                     <p id="wpinv_country_box" class="wpi-cart-field wpi-col2 wpi-colf">
-                        <label for="wpinv_country" class="wpi-label"><?php _e( 'Country', 'invoicing' );?><?php if ( wpinv_get_option( 'country_mandatory' ) ) { echo '<span class="wpi-required">*</span>'; } ?></label>
-                        <?php echo wpinv_html_select( array(
+                        <label for="wpinv_country" class="wpi-label"><?php _e('Country', 'invoicing'); ?><?php if (wpinv_get_option('country_mandatory')) { echo '<span class="wpi-required">*</span>'; } ?></label>
+                        <?php echo wpinv_html_select(array(
                             'options'          => wpinv_get_country_list(),
                             'name'             => 'wpinv_country',
                             'id'               => 'wpinv_country',
@@ -1745,16 +1745,16 @@ 
                             'show_option_all'  => false,
                             'show_option_none' => false,
                             'class'            => 'wpi-input form-control wpi_select2',
-                            'placeholder'      => __( 'Choose a country', 'invoicing' ),
-                            'required'         => (bool)wpinv_get_option( 'country_mandatory' ),
-                        ) ); ?>
+                            'placeholder'      => __('Choose a country', 'invoicing'),
+                            'required'         => (bool) wpinv_get_option('country_mandatory'),
+                        )); ?>
                     </p>
                     <p id="wpinv_state_box" class="wpi-cart-field wpi-col2 wpi-coll">
-                        <label for="wpinv_state" class="wpi-label"><?php _e( 'State / Province', 'invoicing' );?><?php if ( wpinv_get_option( 'state_mandatory' ) ) { echo '<span class="wpi-required">*</span>'; } ?></label>
+                        <label for="wpinv_state" class="wpi-label"><?php _e('State / Province', 'invoicing'); ?><?php if (wpinv_get_option('state_mandatory')) { echo '<span class="wpi-required">*</span>'; } ?></label>
                         <?php
-                        $states = wpinv_get_country_states( $selected_country );
-                        if( !empty( $states ) ) {
-                            echo wpinv_html_select( array(
+                        $states = wpinv_get_country_states($selected_country);
+                        if (!empty($states)) {
+                            echo wpinv_html_select(array(
                                 'options'          => $states,
                                 'name'             => 'wpinv_state',
                                 'id'               => 'wpinv_state',
@@ -1762,61 +1762,61 @@ 
                                 'show_option_all'  => false,
                                 'show_option_none' => false,
                                 'class'            => 'wpi-input form-control wpi_select2',
-                                'placeholder'      => __( 'Choose a state', 'invoicing' ),
-                                'required'         => (bool)wpinv_get_option( 'state_mandatory' ),
-                            ) );
+                                'placeholder'      => __('Choose a state', 'invoicing'),
+                                'required'         => (bool) wpinv_get_option('state_mandatory'),
+                            ));
                         } else {
-                            echo wpinv_html_text( array(
+                            echo wpinv_html_text(array(
                                 'name'          => 'wpinv_state',
                                 'value'         => $billing_details['state'],
                                 'id'            => 'wpinv_state',
                                 'class'         => 'wpi-input form-control',
-                                'placeholder'   => __( 'State / Province', 'invoicing' ),
-                                'required'      => (bool)wpinv_get_option( 'state_mandatory' ),
-                            ) );
+                                'placeholder'   => __('State / Province', 'invoicing'),
+                                'required'      => (bool) wpinv_get_option('state_mandatory'),
+                            ));
                         }
                         ?>
                     </p>
                     <p class="wpi-cart-field wpi-col2 wpi-colf">
-                        <label for="wpinv_zip" class="wpi-label"><?php _e( 'ZIP / Postcode', 'invoicing' );?><?php if ( wpinv_get_option( 'zip_mandatory' ) ) { echo '<span class="wpi-required">*</span>'; } ?></label>
+                        <label for="wpinv_zip" class="wpi-label"><?php _e('ZIP / Postcode', 'invoicing'); ?><?php if (wpinv_get_option('zip_mandatory')) { echo '<span class="wpi-required">*</span>'; } ?></label>
                         <?php
-                        echo wpinv_html_text( array(
+                        echo wpinv_html_text(array(
                                 'name'          => 'wpinv_zip',
                                 'value'         => $billing_details['zip'],
                                 'id'            => 'wpinv_zip',
                                 'class'         => 'wpi-input form-control',
-                                'placeholder'   => __( 'ZIP / Postcode', 'invoicing' ),
-                                'required'      => (bool)wpinv_get_option( 'zip_mandatory' ),
-                            ) );
+                                'placeholder'   => __('ZIP / Postcode', 'invoicing'),
+                                'required'      => (bool) wpinv_get_option('zip_mandatory'),
+                            ));
                         ?>
                     </p>
                     <p class="wpi-cart-field wpi-col2 wpi-coll">
-                        <label for="wpinv_phone" class="wpi-label"><?php _e( 'Phone', 'invoicing' );?><?php if ( wpinv_get_option( 'phone_mandatory' ) ) { echo '<span class="wpi-required">*</span>'; } ?></label>
+                        <label for="wpinv_phone" class="wpi-label"><?php _e('Phone', 'invoicing'); ?><?php if (wpinv_get_option('phone_mandatory')) { echo '<span class="wpi-required">*</span>'; } ?></label>
                         <?php
-                        echo wpinv_html_text( array(
+                        echo wpinv_html_text(array(
                                 'id'            => 'wpinv_phone',
                                 'name'          => 'wpinv_phone',
                                 'value'         => $billing_details['phone'],
                                 'class'         => 'wpi-input form-control',
-                                'placeholder'   => __( 'Phone', 'invoicing' ),
-                                'required'      => (bool)wpinv_get_option( 'phone_mandatory' ),
-                            ) );
+                                'placeholder'   => __('Phone', 'invoicing'),
+                                'required'      => (bool) wpinv_get_option('phone_mandatory'),
+                            ));
                         ?>
                     </p>
-                    <?php do_action( 'wpinv_checkout_billing_fields_last', $billing_details ); ?>
+                    <?php do_action('wpinv_checkout_billing_fields_last', $billing_details); ?>
                     <div class="clearfix"></div>
                 </div>
             </div>
-            <?php do_action( 'wpinv_after_billing_fields', $billing_details ); ?>
+            <?php do_action('wpinv_after_billing_fields', $billing_details); ?>
         </div>
         <?php
     }
 }
-add_action( 'wpinv_checkout_billing_info', 'wpinv_checkout_billing_info' );
+add_action('wpinv_checkout_billing_info', 'wpinv_checkout_billing_info');
 
 function wpinv_checkout_hidden_fields() {
 ?>
-    <?php if ( is_user_logged_in() ) { ?>
+    <?php if (is_user_logged_in()) { ?>
     <input type="hidden" name="wpinv_user_id" value="<?php echo get_current_user_id(); ?>"/>
     <?php } ?>
     <input type="hidden" name="wpi_action" value="payment" />
@@ -1826,9 +1826,9 @@ 
 function wpinv_checkout_button_purchase() {
     ob_start();
 ?>
-    <input type="submit" class="btn btn-success wpinv-submit" id="wpinv-payment-button" data-value="<?php esc_attr_e( 'Proceed to Pay', 'invoicing' ) ?>" name="wpinv_payment" value="<?php esc_attr_e( 'Proceed to Pay', 'invoicing' ) ?>"/>
+    <input type="submit" class="btn btn-success wpinv-submit" id="wpinv-payment-button" data-value="<?php esc_attr_e('Proceed to Pay', 'invoicing') ?>" name="wpinv_payment" value="<?php esc_attr_e('Proceed to Pay', 'invoicing') ?>"/>
 <?php
-    return apply_filters( 'wpinv_checkout_button_purchase', ob_get_clean() );
+    return apply_filters('wpinv_checkout_button_purchase', ob_get_clean());
 }
 
 function wpinv_checkout_total() {
@@ -1837,84 +1837,84 @@ 
 <div id="wpinv_checkout_total" class="panel panel-info">
     <div class="panel-body">
     <?php
-    do_action( 'wpinv_purchase_form_before_checkout_total' );
+    do_action('wpinv_purchase_form_before_checkout_total');
     ?>
-    <strong><?php _e( 'Invoice Total:', 'invoicing' ) ?></strong> <span class="wpinv-chdeckout-total"><?php echo $cart_total;?></span>
+    <strong><?php _e('Invoice Total:', 'invoicing') ?></strong> <span class="wpinv-chdeckout-total"><?php echo $cart_total; ?></span>
     <?php
-    do_action( 'wpinv_purchase_form_after_checkout_total' );
+    do_action('wpinv_purchase_form_after_checkout_total');
     ?>
     </div>
 </div>
 <?php
 }
-add_action( 'wpinv_checkout_form_bottom', 'wpinv_checkout_total', 9998 );
+add_action('wpinv_checkout_form_bottom', 'wpinv_checkout_total', 9998);
 
 function wpinv_checkout_accept_tandc() {
-    $page = wpinv_get_option( 'tandc_page' );
+    $page = wpinv_get_option('tandc_page');
     ?>
     <div id="wpinv_checkout_tandc" class="panel panel-success">
         <div class="panel-body">
             <?php echo wpinv_get_policy_text(); ?>
             <?php
-            if(isset($page) && (int)$page > 0 && apply_filters( 'wpinv_checkout_show_terms', true )){
-                $terms_link = esc_url( get_permalink( $page ) );
+            if (isset($page) && (int) $page > 0 && apply_filters('wpinv_checkout_show_terms', true)) {
+                $terms_link = esc_url(get_permalink($page));
                 ?>
                 <label class="">
-                    <input type="checkbox" class="wpi-terms-checkbox" name="wpi_terms" id="wpi-terms" <?php checked( apply_filters( 'wpinv_terms_is_checked_default', isset( $_POST['wpi_terms'] ) ), true ); ?>> <span><?php printf( __( 'I&rsquo;ve read and accept the <a href="%s" target="_blank" class="wpi-terms-and-conditions-link">terms &amp; conditions</a>', 'invoicing' ), $terms_link ); ?></span> <span class="wpi-required">*</span>
+                    <input type="checkbox" class="wpi-terms-checkbox" name="wpi_terms" id="wpi-terms" <?php checked(apply_filters('wpinv_terms_is_checked_default', isset($_POST['wpi_terms'])), true); ?>> <span><?php printf(__('I&rsquo;ve read and accept the <a href="%s" target="_blank" class="wpi-terms-and-conditions-link">terms &amp; conditions</a>', 'invoicing'), $terms_link); ?></span> <span class="wpi-required">*</span>
                 </label>
             <?php } ?>
         </div>
     </div>
     <?php
 }
-add_action( 'wpinv_checkout_form_bottom', 'wpinv_checkout_accept_tandc', 9995 );
+add_action('wpinv_checkout_form_bottom', 'wpinv_checkout_accept_tandc', 9995);
 
 function wpinv_checkout_submit() {
 ?>
 <div id="wpinv_purchase_submit" class="panel panel-success">
     <div class="panel-body text-center">
     <?php
-    do_action( 'wpinv_purchase_form_before_submit' );
+    do_action('wpinv_purchase_form_before_submit');
     wpinv_checkout_hidden_fields();
     echo wpinv_checkout_button_purchase();
-    do_action( 'wpinv_purchase_form_after_submit' );
+    do_action('wpinv_purchase_form_after_submit');
     ?>
     </div>
 </div>
 <?php
 }
-add_action( 'wpinv_checkout_form_bottom', 'wpinv_checkout_submit', 9999 );
+add_action('wpinv_checkout_form_bottom', 'wpinv_checkout_submit', 9999);
 
-function wpinv_receipt_billing_address( $invoice_id = 0 ) {
-    $invoice = wpinv_get_invoice( $invoice_id );
+function wpinv_receipt_billing_address($invoice_id = 0) {
+    $invoice = wpinv_get_invoice($invoice_id);
 
-    if ( empty( $invoice ) ) {
+    if (empty($invoice)) {
         return NULL;
     }
 
     $billing_details = $invoice->get_user_info();
-    $address_row = wpinv_get_invoice_address_markup( $billing_details );
+    $address_row = wpinv_get_invoice_address_markup($billing_details);
 
     ob_start();
     ?>
     <table class="table table-bordered table-sm wpi-billing-details">
         <tbody>
             <tr class="wpi-receipt-name">
-                <th class="text-left"><?php _e( 'Name', 'invoicing' ); ?></th>
-                <td><?php echo esc_html( trim( $billing_details['first_name'] . ' ' . $billing_details['last_name'] ) ) ;?></td>
+                <th class="text-left"><?php _e('Name', 'invoicing'); ?></th>
+                <td><?php echo esc_html(trim($billing_details['first_name'] . ' ' . $billing_details['last_name'])); ?></td>
             </tr>
             <tr class="wpi-receipt-email">
-                <th class="text-left"><?php _e( 'Email', 'invoicing' ); ?></th>
-                <td><?php echo $billing_details['email'] ;?></td>
+                <th class="text-left"><?php _e('Email', 'invoicing'); ?></th>
+                <td><?php echo $billing_details['email']; ?></td>
             </tr>
             <tr class="wpi-receipt-address">
-                <th class="text-left"><?php _e( 'Address', 'invoicing' ); ?></th>
-                <td><?php echo $address_row ;?></td>
+                <th class="text-left"><?php _e('Address', 'invoicing'); ?></th>
+                <td><?php echo $address_row; ?></td>
             </tr>
-            <?php if ( $billing_details['phone'] ) { ?>
+            <?php if ($billing_details['phone']) { ?>
             <tr class="wpi-receipt-phone">
-                <th class="text-left"><?php _e( 'Phone', 'invoicing' ); ?></th>
-                <td><?php echo esc_html( $billing_details['phone'] ) ;?></td>
+                <th class="text-left"><?php _e('Phone', 'invoicing'); ?></th>
+                <td><?php echo esc_html($billing_details['phone']); ?></td>
             </tr>
             <?php } ?>
         </tbody>
@@ -1922,74 +1922,74 @@ 
     <?php
     $output = ob_get_clean();
     
-    $output = apply_filters( 'wpinv_receipt_billing_address', $output, $invoice_id );
+    $output = apply_filters('wpinv_receipt_billing_address', $output, $invoice_id);
 
     echo $output;
 }
 
-function wpinv_filter_success_page_content( $content ) {
-    if ( isset( $_GET['payment-confirm'] ) && wpinv_is_success_page() ) {
-        if ( has_filter( 'wpinv_payment_confirm_' . sanitize_text_field( $_GET['payment-confirm'] ) ) ) {
-            $content = apply_filters( 'wpinv_payment_confirm_' . sanitize_text_field( $_GET['payment-confirm'] ), $content );
+function wpinv_filter_success_page_content($content) {
+    if (isset($_GET['payment-confirm']) && wpinv_is_success_page()) {
+        if (has_filter('wpinv_payment_confirm_' . sanitize_text_field($_GET['payment-confirm']))) {
+            $content = apply_filters('wpinv_payment_confirm_' . sanitize_text_field($_GET['payment-confirm']), $content);
         }
     }
 
     return $content;
 }
-add_filter( 'the_content', 'wpinv_filter_success_page_content', 99999 );
+add_filter('the_content', 'wpinv_filter_success_page_content', 99999);
 
-function wpinv_receipt_actions( $invoice ) {
-    if ( !empty( $invoice ) ) {
+function wpinv_receipt_actions($invoice) {
+    if (!empty($invoice)) {
         $actions = array();
 
-        if ( wpinv_user_can_view_invoice( $invoice->ID ) ) {
-            $actions['print']   = array(
-                'url'  => $invoice->get_view_url( true ),
-                'name' => __( 'Print Invoice', 'invoicing' ),
+        if (wpinv_user_can_view_invoice($invoice->ID)) {
+            $actions['print'] = array(
+                'url'  => $invoice->get_view_url(true),
+                'name' => __('Print Invoice', 'invoicing'),
                 'class' => 'btn-primary',
             );
         }
 
-        if ( is_user_logged_in() ) {
+        if (is_user_logged_in()) {
             $actions['history'] = array(
                 'url'  => wpinv_get_history_page_uri(),
-                'name' => __( 'Invoice History', 'invoicing' ),
+                'name' => __('Invoice History', 'invoicing'),
                 'class' => 'btn-warning',
             );
         }
 
-        $actions = apply_filters( 'wpinv_invoice_receipt_actions', $actions, $invoice );
+        $actions = apply_filters('wpinv_invoice_receipt_actions', $actions, $invoice);
 
-        if ( !empty( $actions ) ) {
+        if (!empty($actions)) {
         ?>
         <div class="wpinv-receipt-actions text-right">
-            <?php foreach ( $actions as $key => $action ) { $class = !empty($action['class']) ? sanitize_html_class( $action['class'] ) : ''; ?>
-            <a href="<?php echo esc_url( $action['url'] );?>" class="btn btn-sm <?php echo $class . ' ' . sanitize_html_class( $key );?>" <?php echo ( !empty($action['attrs']) ? $action['attrs'] : '' ) ;?>><?php echo esc_html( $action['name'] );?></a>
+            <?php foreach ($actions as $key => $action) { $class = !empty($action['class']) ? sanitize_html_class($action['class']) : ''; ?>
+            <a href="<?php echo esc_url($action['url']); ?>" class="btn btn-sm <?php echo $class . ' ' . sanitize_html_class($key); ?>" <?php echo (!empty($action['attrs']) ? $action['attrs'] : ''); ?>><?php echo esc_html($action['name']); ?></a>
             <?php } ?>
         </div>
         <?php
         }
     }
 }
-add_action( 'wpinv_receipt_start', 'wpinv_receipt_actions', -10, 1 );
+add_action('wpinv_receipt_start', 'wpinv_receipt_actions', -10, 1);
 
-function wpinv_invoice_link( $invoice_id ) {
-    $invoice = wpinv_get_invoice( $invoice_id );
+function wpinv_invoice_link($invoice_id) {
+    $invoice = wpinv_get_invoice($invoice_id);
 
-    if ( empty( $invoice ) ) {
+    if (empty($invoice)) {
         return NULL;
     }
 
-    $invoice_link = '<a href="' . esc_url( $invoice->get_view_url() ) . '">' . $invoice->get_number() . '</a>';
+    $invoice_link = '<a href="' . esc_url($invoice->get_view_url()) . '">' . $invoice->get_number() . '</a>';
 
-    return apply_filters( 'wpinv_get_invoice_link', $invoice_link, $invoice );
+    return apply_filters('wpinv_get_invoice_link', $invoice_link, $invoice);
 }
 
-function wpinv_invoice_subscription_details( $invoice ) {
-    if ( !empty( $invoice ) && $invoice->is_recurring() && ! wpinv_is_subscription_payment( $invoice ) ) {
-        $subscription = wpinv_get_subscription( $invoice, true );
+function wpinv_invoice_subscription_details($invoice) {
+    if (!empty($invoice) && $invoice->is_recurring() && !wpinv_is_subscription_payment($invoice)) {
+        $subscription = wpinv_get_subscription($invoice, true);
 
-        if ( empty( $subscription ) ) {
+        if (empty($subscription)) {
             return;
         }
 
@@ -2000,15 +2000,15 @@ 
         $payments = $subscription->get_child_payments();
         ?>
         <div class="wpinv-subscriptions-details">
-            <h3 class="wpinv-subscriptions-t"><?php echo apply_filters( 'wpinv_subscription_details_title', __( 'Subscription Details', 'invoicing' ) ); ?></h3>
+            <h3 class="wpinv-subscriptions-t"><?php echo apply_filters('wpinv_subscription_details_title', __('Subscription Details', 'invoicing')); ?></h3>
             <table class="table">
                 <thead>
                     <tr>
-                        <th><?php _e( 'Billing Cycle', 'invoicing' ) ;?></th>
-                        <th><?php _e( 'Start Date', 'invoicing' ) ;?></th>
-                        <th><?php _e( 'Expiration Date', 'invoicing' ) ;?></th>
-                        <th class="text-center"><?php _e( 'Times Billed', 'invoicing' ) ;?></th>
-                        <th class="text-center"><?php _e( 'Status', 'invoicing' ) ;?></th>
+                        <th><?php _e('Billing Cycle', 'invoicing'); ?></th>
+                        <th><?php _e('Start Date', 'invoicing'); ?></th>
+                        <th><?php _e('Expiration Date', 'invoicing'); ?></th>
+                        <th class="text-center"><?php _e('Times Billed', 'invoicing'); ?></th>
+                        <th class="text-center"><?php _e('Status', 'invoicing'); ?></th>
                     </tr>
                 </thead>
                 <tbody>
@@ -2022,29 +2022,29 @@ 
                 </tbody>
             </table>
         </div>
-        <?php if ( !empty( $payments ) ) { ?>
+        <?php if (!empty($payments)) { ?>
         <div class="wpinv-renewal-payments">
-            <h3 class="wpinv-renewals-t"><?php echo apply_filters( 'wpinv_renewal_payments_title', __( 'Renewal Payments', 'invoicing' ) ); ?></h3>
+            <h3 class="wpinv-renewals-t"><?php echo apply_filters('wpinv_renewal_payments_title', __('Renewal Payments', 'invoicing')); ?></h3>
             <table class="table">
                 <thead>
                     <tr>
                         <th>#</th>
-                        <th><?php _e( 'Invoice', 'invoicing' ) ;?></th>
-                        <th><?php _e( 'Date', 'invoicing' ) ;?></th>
-                        <th class="text-right"><?php _e( 'Amount', 'invoicing' ) ;?></th>
+                        <th><?php _e('Invoice', 'invoicing'); ?></th>
+                        <th><?php _e('Date', 'invoicing'); ?></th>
+                        <th class="text-right"><?php _e('Amount', 'invoicing'); ?></th>
                     </tr>
                 </thead>
                 <tbody>
                     <?php
                         $i = 1;
-                        foreach ( $payments as $payment ) {
+                        foreach ($payments as $payment) {
                             $invoice_id = $payment->ID;
                     ?>
                     <tr>
-                        <th scope="row"><?php echo $i;?></th>
-                        <td><?php echo wpinv_invoice_link( $invoice_id ) ;?></td>
-                        <td><?php echo wpinv_get_invoice_date( $invoice_id ); ?></td>
-                        <td class="text-right"><?php echo wpinv_payment_total( $invoice_id, true ); ?></td>
+                        <th scope="row"><?php echo $i; ?></th>
+                        <td><?php echo wpinv_invoice_link($invoice_id); ?></td>
+                        <td><?php echo wpinv_get_invoice_date($invoice_id); ?></td>
+                        <td class="text-right"><?php echo wpinv_payment_total($invoice_id, true); ?></td>
                     </tr>
                     <?php $i++; } ?>
                 </tbody>
@@ -2055,52 +2055,52 @@ 
     }
 }
 
-function wpinv_cart_total_label( $label, $invoice ) {
-    if ( empty( $invoice ) ) {
+function wpinv_cart_total_label($label, $invoice) {
+    if (empty($invoice)) {
         return $label;
     }
 
     $prefix_label = '';
-    if ( $invoice->is_parent() && $item_id = $invoice->get_recurring() ) {
-        $prefix_label   = '<span class="label label-primary label-recurring">' . __( 'Recurring Payment', 'invoicing' ) . '</span> ' . wpinv_subscription_payment_desc( $invoice );
-    } else if ( $invoice->is_renewal() ) {
-        $prefix_label   = '<span class="label label-primary label-renewal">' . __( 'Renewal Payment', 'invoicing' ) . '</span> ';        
+    if ($invoice->is_parent() && $item_id = $invoice->get_recurring()) {
+        $prefix_label   = '<span class="label label-primary label-recurring">' . __('Recurring Payment', 'invoicing') . '</span> ' . wpinv_subscription_payment_desc($invoice);
+    } else if ($invoice->is_renewal()) {
+        $prefix_label   = '<span class="label label-primary label-renewal">' . __('Renewal Payment', 'invoicing') . '</span> ';        
     }
 
-    if ( $prefix_label != '' ) {
-        $label  = '<span class="wpinv-cart-sub-desc">' . $prefix_label . '</span> ' . $label;
+    if ($prefix_label != '') {
+        $label = '<span class="wpinv-cart-sub-desc">' . $prefix_label . '</span> ' . $label;
     }
 
     return $label;
 }
-add_filter( 'wpinv_cart_total_label', 'wpinv_cart_total_label', 10, 2 );
-add_filter( 'wpinv_email_cart_total_label', 'wpinv_cart_total_label', 10, 2 );
-add_filter( 'wpinv_print_cart_total_label', 'wpinv_cart_total_label', 10, 2 );
+add_filter('wpinv_cart_total_label', 'wpinv_cart_total_label', 10, 2);
+add_filter('wpinv_email_cart_total_label', 'wpinv_cart_total_label', 10, 2);
+add_filter('wpinv_print_cart_total_label', 'wpinv_cart_total_label', 10, 2);
 
-add_action( 'wpinv_invoice_print_middle', 'wpinv_invoice_subscription_details', 10, 1 );
+add_action('wpinv_invoice_print_middle', 'wpinv_invoice_subscription_details', 10, 1);
 
-function wpinv_invoice_print_description( $invoice ) {
-    if ( empty( $invoice ) ) {
+function wpinv_invoice_print_description($invoice) {
+    if (empty($invoice)) {
         return NULL;
     }
-    if ( $description = wpinv_get_invoice_description( $invoice->ID ) ) {
+    if ($description = wpinv_get_invoice_description($invoice->ID)) {
         ?>
         <div class="row wpinv-lower">
             <div class="col-sm-12 wpinv-description">
-                <?php echo wpautop( $description ); ?>
+                <?php echo wpautop($description); ?>
             </div>
         </div>
         <?php
     }
 }
-add_action( 'wpinv_invoice_print_middle', 'wpinv_invoice_print_description', 10.1, 1 );
+add_action('wpinv_invoice_print_middle', 'wpinv_invoice_print_description', 10.1, 1);
 
-function wpinv_invoice_print_payment_info( $invoice ) {
-    if ( empty( $invoice ) ) {
+function wpinv_invoice_print_payment_info($invoice) {
+    if (empty($invoice)) {
         return NULL;
     }
 
-    if ( $payments_info = wpinv_display_payments_info( $invoice->ID, false ) ) {
+    if ($payments_info = wpinv_display_payments_info($invoice->ID, false)) {
         ?>
         <div class="row wpinv-payments">
             <div class="col-sm-12">
@@ -2112,43 +2112,43 @@ 
 }
 // add_action( 'wpinv_invoice_print_after_line_items', 'wpinv_invoice_print_payment_info', 10, 1 );
 
-function wpinv_get_invoice_note_line_item( $note, $echo = true ) {
-    if ( empty( $note ) ) {
+function wpinv_get_invoice_note_line_item($note, $echo = true) {
+    if (empty($note)) {
         return NULL;
     }
 
-    if ( is_int( $note ) ) {
-        $note = get_comment( $note );
+    if (is_int($note)) {
+        $note = get_comment($note);
     }
 
-    if ( !( is_object( $note ) && is_a( $note, 'WP_Comment' ) ) ) {
+    if (!(is_object($note) && is_a($note, 'WP_Comment'))) {
         return NULL;
     }
 
-    $note_classes   = array( 'note' );
-    $note_classes[] = get_comment_meta( $note->comment_ID, '_wpi_customer_note', true ) ? 'customer-note' : '';
+    $note_classes   = array('note');
+    $note_classes[] = get_comment_meta($note->comment_ID, '_wpi_customer_note', true) ? 'customer-note' : '';
     $note_classes[] = $note->comment_author === 'System' ? 'system-note' : '';
-    $note_classes   = apply_filters( 'wpinv_invoice_note_class', array_filter( $note_classes ), $note );
-    $note_classes   = !empty( $note_classes ) ? implode( ' ', $note_classes ) : '';
+    $note_classes   = apply_filters('wpinv_invoice_note_class', array_filter($note_classes), $note);
+    $note_classes   = !empty($note_classes) ? implode(' ', $note_classes) : '';
 
     ob_start();
     ?>
-    <li rel="<?php echo absint( $note->comment_ID ) ; ?>" class="<?php echo esc_attr( $note_classes ); ?>">
+    <li rel="<?php echo absint($note->comment_ID); ?>" class="<?php echo esc_attr($note_classes); ?>">
         <div class="note_content">
-            <?php echo wpautop( wptexturize( wp_kses_post( $note->comment_content ) ) ); ?>
+            <?php echo wpautop(wptexturize(wp_kses_post($note->comment_content))); ?>
         </div>
         <p class="meta">
-            <abbr class="exact-date" title="<?php echo $note->comment_date; ?>"><?php printf( __( '%1$s - %2$s at %3$s', 'invoicing' ), $note->comment_author, date_i18n( get_option( 'date_format' ), strtotime( $note->comment_date ) ), date_i18n( get_option( 'time_format' ), strtotime( $note->comment_date ) ) ); ?></abbr>&nbsp;&nbsp;
-            <?php if ( is_admin() && ( $note->comment_author !== 'System' || wpinv_current_user_can_manage_invoicing() ) ) { ?>
-                <a href="#" class="delete_note"><?php _e( 'Delete note', 'invoicing' ); ?></a>
+            <abbr class="exact-date" title="<?php echo $note->comment_date; ?>"><?php printf(__('%1$s - %2$s at %3$s', 'invoicing'), $note->comment_author, date_i18n(get_option('date_format'), strtotime($note->comment_date)), date_i18n(get_option('time_format'), strtotime($note->comment_date))); ?></abbr>&nbsp;&nbsp;
+            <?php if (is_admin() && ($note->comment_author !== 'System' || wpinv_current_user_can_manage_invoicing())) { ?>
+                <a href="#" class="delete_note"><?php _e('Delete note', 'invoicing'); ?></a>
             <?php } ?>
         </p>
     </li>
     <?php
     $note_content = ob_get_clean();
-    $note_content = apply_filters( 'wpinv_get_invoice_note_line_item', $note_content, $note, $echo );
+    $note_content = apply_filters('wpinv_get_invoice_note_line_item', $note_content, $note, $echo);
 
-    if ( $echo ) {
+    if ($echo) {
         echo $note_content;
     } else {
         return $note_content;
@@ -2158,43 +2158,43 @@ 
 function wpinv_invalid_invoice_content() {
     global $post;
 
-    $invoice = wpinv_get_invoice( $post->ID );
+    $invoice = wpinv_get_invoice($post->ID);
 
-    $error = __( 'This invoice is only viewable by clicking on the invoice link that was sent to you via email.', 'invoicing' );
-    if ( !empty( $invoice->ID ) && $invoice->has_status( array_keys( wpinv_get_invoice_statuses() ) ) ) {
-        if ( is_user_logged_in() ) {
-            if ( wpinv_require_login_to_checkout() ) {
-                if ( isset( $_GET['invoice_key'] ) && $_GET['invoice_key'] === $invoice->get_key() ) {
-                    $error = __( 'You are not allowed to view this invoice.', 'invoicing' );
+    $error = __('This invoice is only viewable by clicking on the invoice link that was sent to you via email.', 'invoicing');
+    if (!empty($invoice->ID) && $invoice->has_status(array_keys(wpinv_get_invoice_statuses()))) {
+        if (is_user_logged_in()) {
+            if (wpinv_require_login_to_checkout()) {
+                if (isset($_GET['invoice_key']) && $_GET['invoice_key'] === $invoice->get_key()) {
+                    $error = __('You are not allowed to view this invoice.', 'invoicing');
                 }
             }
         } else {
-            if ( wpinv_require_login_to_checkout() ) {
-                if ( isset( $_GET['invoice_key'] ) && $_GET['invoice_key'] === $invoice->get_key() ) {
-                    $error = __( 'You must be logged in to view this invoice.', 'invoicing' );
+            if (wpinv_require_login_to_checkout()) {
+                if (isset($_GET['invoice_key']) && $_GET['invoice_key'] === $invoice->get_key()) {
+                    $error = __('You must be logged in to view this invoice.', 'invoicing');
                 }
             }
         }
     } else {
-        $error = __( 'This invoice is deleted or does not exist.', 'invoicing' );
+        $error = __('This invoice is deleted or does not exist.', 'invoicing');
     }
     ?>
     <div class="row wpinv-row-invalid">
         <div class="col-md-6 col-md-offset-3 wpinv-message error">
-            <h3><?php _e( 'Access Denied', 'invoicing' ); ?></h3>
+            <h3><?php _e('Access Denied', 'invoicing'); ?></h3>
             <p class="wpinv-msg-text"><?php echo $error; ?></p>
         </div>
     </div>
     <?php
 }
-add_action( 'wpinv_invalid_invoice_content', 'wpinv_invalid_invoice_content' );
+add_action('wpinv_invalid_invoice_content', 'wpinv_invalid_invoice_content');
 
-add_action( 'wpinv_checkout_billing_fields_last', 'wpinv_force_company_name_field');
-function wpinv_force_company_name_field(){
+add_action('wpinv_checkout_billing_fields_last', 'wpinv_force_company_name_field');
+function wpinv_force_company_name_field() {
     $invoice = wpinv_get_invoice_cart();
-    $user_id = wpinv_get_user_id( $invoice->ID );
-    $company = empty( $user_id ) ? "" : get_user_meta( $user_id, '_wpinv_company', true );
-    if ( 1 == wpinv_get_option( 'force_show_company' ) && !wpinv_use_taxes() ) {
+    $user_id = wpinv_get_user_id($invoice->ID);
+    $company = empty($user_id) ? "" : get_user_meta($user_id, '_wpinv_company', true);
+    if (1 == wpinv_get_option('force_show_company') && !wpinv_use_taxes()) {
         ?>
         <p class="wpi-cart-field wpi-col2 wpi-colf">
             <label for="wpinv_company" class="wpi-label"><?php _e('Company Name', 'invoicing'); ?></label>
@@ -2219,21 +2219,21 @@ 
  * @return string
  */
 function wpinv_get_policy_text() {
-    $privacy_page_id = get_option( 'wp_page_for_privacy_policy', 0 );
+    $privacy_page_id = get_option('wp_page_for_privacy_policy', 0);
 
-    $text = wpinv_get_option('invoicing_privacy_checkout_message', sprintf( __( 'Your personal data will be used to process your invoice, payment and for other purposes described in our %s.', 'invoicing' ), '[wpinv_privacy_policy]' ));
+    $text = wpinv_get_option('invoicing_privacy_checkout_message', sprintf(__('Your personal data will be used to process your invoice, payment and for other purposes described in our %s.', 'invoicing'), '[wpinv_privacy_policy]'));
 
-    if(!$privacy_page_id){
-        $privacy_page_id = wpinv_get_option( 'privacy_page', 0 );
+    if (!$privacy_page_id) {
+        $privacy_page_id = wpinv_get_option('privacy_page', 0);
     }
 
-    $privacy_link    = $privacy_page_id ? '<a href="' . esc_url( get_permalink( $privacy_page_id ) ) . '" class="wpinv-privacy-policy-link" target="_blank">' . __( 'privacy policy', 'invoicing' ) . '</a>' : __( 'privacy policy', 'invoicing' );
+    $privacy_link = $privacy_page_id ? '<a href="' . esc_url(get_permalink($privacy_page_id)) . '" class="wpinv-privacy-policy-link" target="_blank">' . __('privacy policy', 'invoicing') . '</a>' : __('privacy policy', 'invoicing');
 
     $find_replace = array(
         '[wpinv_privacy_policy]' => $privacy_link,
     );
 
-    $privacy_text = str_replace( array_keys( $find_replace ), array_values( $find_replace ), $text );
+    $privacy_text = str_replace(array_keys($find_replace), array_values($find_replace), $text);
 
     return wp_kses_post(wpautop($privacy_text));
 }
@@ -2242,25 +2242,25 @@ 
 /**
  * Allows the user to set their own price for an invoice item
  */
-function wpinv_checkout_cart_item_name_your_price( $cart_item, $key ) {
+function wpinv_checkout_cart_item_name_your_price($cart_item, $key) {
     
     //Ensure we have an item id
-    if(! is_array( $cart_item ) || empty( $cart_item['id'] ) ) {
+    if (!is_array($cart_item) || empty($cart_item['id'])) {
         return;
     }
 
     //Fetch the item
     $item_id = $cart_item['id'];
-    $item    = new WPInv_Item( $item_id );
+    $item    = new WPInv_Item($item_id);
     
-    if(! $item->supports_dynamic_pricing() || !$item->get_is_dynamic_pricing() ) {
+    if (!$item->supports_dynamic_pricing() || !$item->get_is_dynamic_pricing()) {
         return;
     }
 
     //Fetch the dynamic pricing "strings"
-    $suggested_price_text = esc_html( wpinv_get_option( 'suggested_price_text', __( 'Suggested Price:', 'invoicing' ) ) );
-    $minimum_price_text   = esc_html( wpinv_get_option( 'minimum_price_text', __( 'Minimum Price:', 'invoicing' ) ) );
-    $name_your_price_text = esc_html( wpinv_get_option( 'name_your_price_text', __( 'Name Your Price', 'invoicing' ) ) );
+    $suggested_price_text = esc_html(wpinv_get_option('suggested_price_text', __('Suggested Price:', 'invoicing')));
+    $minimum_price_text   = esc_html(wpinv_get_option('minimum_price_text', __('Minimum Price:', 'invoicing')));
+    $name_your_price_text = esc_html(wpinv_get_option('name_your_price_text', __('Name Your Price', 'invoicing')));
 
     //Display a "name_your_price" button
     echo " &mdash; <a href='#' class='wpinv-name-your-price-frontend small'>$name_your_price_text</a></div>";
@@ -2269,7 +2269,7 @@ 
     echo '<div class="name-your-price-miniform">';
     
     //Maybe display the recommended price
-    if( $item->get_price() > 0 && !empty( $suggested_price_text ) ) {
+    if ($item->get_price() > 0 && !empty($suggested_price_text)) {
         $suggested_price = $item->get_the_price();
         echo "<div>$suggested_price_text &mdash; $suggested_price</div>";
     }
@@ -2277,50 +2277,50 @@ 
     //Display the update price form
     $symbol         = wpinv_currency_symbol();
     $position       = wpinv_currency_position();
-    $minimum        = esc_attr( $item->get_minimum_price() );
-    $price          = esc_attr( $cart_item['item_price'] );
-    $update         = esc_attr__( "Update", 'invoicing' );
+    $minimum        = esc_attr($item->get_minimum_price());
+    $price          = esc_attr($cart_item['item_price']);
+    $update         = esc_attr__("Update", 'invoicing');
 
     //Ensure it supports dynamic prici
-    if( $price < $minimum ) {
+    if ($price < $minimum) {
         $price = $minimum;
     }
 
     echo '<label>';
     echo $position != 'right' ? $symbol . '&nbsp;' : '';
     echo "<input type='number' min='$minimum' placeholder='$price' value='$price' class='wpi-field-price' />";
-    echo $position == 'right' ? '&nbsp;' . $symbol : '' ;
+    echo $position == 'right' ? '&nbsp;' . $symbol : '';
     echo "</label>";
     echo "<input type='hidden' value='$item_id' class='wpi-field-item' />";
     echo "<a class='btn btn-success wpinv-submit wpinv-update-dynamic-price-frontend'>$update</a>";
 
     //Maybe display the minimum price
-    if( $item->get_minimum_price() > 0 && !empty( $minimum_price_text ) ) {
-        $minimum_price = wpinv_price( wpinv_format_amount( $item->get_minimum_price() ) );
+    if ($item->get_minimum_price() > 0 && !empty($minimum_price_text)) {
+        $minimum_price = wpinv_price(wpinv_format_amount($item->get_minimum_price()));
         echo "<div>$minimum_price_text &mdash; $minimum_price</div>";
     }
 
     echo "</div>";
 
 }
-add_action( 'wpinv_checkout_cart_item_price_after', 'wpinv_checkout_cart_item_name_your_price', 10, 2 );
+add_action('wpinv_checkout_cart_item_price_after', 'wpinv_checkout_cart_item_name_your_price', 10, 2);
 
 function wpinv_oxygen_fix_conflict() {
     global $ct_ignore_post_types;
 
-    if ( ! is_array( $ct_ignore_post_types ) ) {
+    if (!is_array($ct_ignore_post_types)) {
         $ct_ignore_post_types = array();
     }
 
-    $post_types = array( 'wpi_discount', 'wpi_invoice', 'wpi_item' );
+    $post_types = array('wpi_discount', 'wpi_invoice', 'wpi_item');
 
-    foreach ( $post_types as $post_type ) {
+    foreach ($post_types as $post_type) {
         $ct_ignore_post_types[] = $post_type;
 
         // Ignore post type
-        add_filter( 'pre_option_oxygen_vsb_ignore_post_type_' . $post_type, '__return_true', 999 );
+        add_filter('pre_option_oxygen_vsb_ignore_post_type_' . $post_type, '__return_true', 999);
     }
 
-    remove_filter( 'template_include', 'wpinv_template', 10, 1 );
-    add_filter( 'template_include', 'wpinv_template', 999, 1 );
+    remove_filter('template_include', 'wpinv_template', 10, 1);
+    add_filter('template_include', 'wpinv_template', 999, 1);
 }
\ No newline at end of file

includes/class-wpinv-invoice.php

Indentation +4 added lines, -4 removed lines

@@ -1355,10 +1355,10 @@
                         $data['cart_details'][$key]['price']      = wpinv_round_amount( $item_total );
                     }
 
-	                $total = $data['subtotal'] - $data['discount'] + $data['tax'];
-	                if ( $total < 0 ) {
-		                $total = 0;
-	                }
+                    $total = $data['subtotal'] - $data['discount'] + $data['tax'];
+                    if ( $total < 0 ) {
+                        $total = 0;
+                    }
 
                     $data['subtotal'] = wpinv_round_amount( $cart_subtotal );
                     $data['discount'] = wpinv_round_amount( $cart_discount );

Braces +3 added lines, -2 removed lines

@@ -974,8 +974,9 @@
             return false;
         }
 
-        if ( empty( $this->ID ) )
-            return false;
+        if ( empty( $this->ID ) ) {
+                    return false;
+        }
         
         if ( ( ( is_user_logged_in() && wpinv_current_user_can_manage_invoicing() ) || $added_by_user ) && !$system ) {
             $user                 = get_user_by( 'id', get_current_user_id() );

Spacing +619 added lines, -619 removed lines

@@ -7,12 +7,12 @@ 
  */
  
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
 final class WPInv_Invoice {
-    public $ID  = 0;
+    public $ID = 0;
     public $title;
     public $post_type;
     
@@ -65,17 +65,17 @@ 
     public $full_name = '';
     public $parent_invoice = 0;
     
-    public function __construct( $invoice_id = false ) {
-        if( empty( $invoice_id ) ) {
+    public function __construct($invoice_id = false) {
+        if (empty($invoice_id)) {
             return false;
         }
 
-        $this->setup_invoice( $invoice_id );
+        $this->setup_invoice($invoice_id);
     }
 
-    public function get( $key ) {
-        if ( method_exists( $this, 'get_' . $key ) ) {
-            $value = call_user_func( array( $this, 'get_' . $key ) );
+    public function get($key) {
+        if (method_exists($this, 'get_' . $key)) {
+            $value = call_user_func(array($this, 'get_' . $key));
         } else {
             $value = $this->$key;
         }
@@ -83,51 +83,51 @@ 
         return $value;
     }
 
-    public function set( $key, $value ) {
-        $ignore = array( 'items', 'cart_details', 'fees', '_ID' );
+    public function set($key, $value) {
+        $ignore = array('items', 'cart_details', 'fees', '_ID');
 
-        if ( $key === 'status' ) {
+        if ($key === 'status') {
             $this->old_status = $this->status;
         }
 
-        if ( ! in_array( $key, $ignore ) ) {
-            $this->pending[ $key ] = $value;
+        if (!in_array($key, $ignore)) {
+            $this->pending[$key] = $value;
         }
 
-        if( '_ID' !== $key ) {
+        if ('_ID' !== $key) {
             $this->$key = $value;
         }
     }
 
-    public function _isset( $name ) {
-        if ( property_exists( $this, $name) ) {
-            return false === empty( $this->$name );
+    public function _isset($name) {
+        if (property_exists($this, $name)) {
+            return false === empty($this->$name);
         } else {
             return null;
         }
     }
 
-    private function setup_invoice( $invoice_id ) {
+    private function setup_invoice($invoice_id) {
         $this->pending = array();
 
-        if ( empty( $invoice_id ) ) {
+        if (empty($invoice_id)) {
             return false;
         }
 
-        $invoice = get_post( $invoice_id );
+        $invoice = get_post($invoice_id);
 
-        if( !$invoice || is_wp_error( $invoice ) ) {
+        if (!$invoice || is_wp_error($invoice)) {
             return false;
         }
 
-        if( !('wpi_invoice' == $invoice->post_type OR 'wpi_quote' == $invoice->post_type) ) {
+        if (!('wpi_invoice' == $invoice->post_type OR 'wpi_quote' == $invoice->post_type)) {
             return false;
         }
 
-        do_action( 'wpinv_pre_setup_invoice', $this, $invoice_id );
+        do_action('wpinv_pre_setup_invoice', $this, $invoice_id);
         
         // Primary Identifier
-        $this->ID              = absint( $invoice_id );
+        $this->ID              = absint($invoice_id);
         $this->post_type       = $invoice->post_type;
         
         // We have a payment, get the generic payment_meta item to reduce calls to it
@@ -139,7 +139,7 @@ 
         $this->post_status     = $this->status;
         $this->mode            = $this->setup_mode();
         $this->parent_invoice  = $invoice->post_parent;
-        $this->post_name       = $this->setup_post_name( $invoice );
+        $this->post_name       = $this->setup_post_name($invoice);
         $this->status_nicename = $this->setup_status_nicename($invoice->post_status);
 
         // Items
@@ -161,8 +161,8 @@ 
         
         // User based
         $this->ip              = $this->setup_ip();
-        $this->user_id         = !empty( $invoice->post_author ) ? $invoice->post_author : get_current_user_id();///$this->setup_user_id();
-        $this->email           = get_the_author_meta( 'email', $this->user_id );
+        $this->user_id         = !empty($invoice->post_author) ? $invoice->post_author : get_current_user_id(); ///$this->setup_user_id();
+        $this->email           = get_the_author_meta('email', $this->user_id);
         
         $this->user_info       = $this->setup_user_info();
                 
@@ -171,7 +171,7 @@ 
         $this->company         = $this->user_info['company'];
         $this->vat_number      = $this->user_info['vat_number'];
         $this->vat_rate        = $this->user_info['vat_rate'];
-        $this->adddress_confirmed  = $this->user_info['adddress_confirmed'];
+        $this->adddress_confirmed = $this->user_info['adddress_confirmed'];
         $this->address         = $this->user_info['address'];
         $this->city            = $this->user_info['city'];
         $this->country         = $this->user_info['country'];
@@ -186,39 +186,39 @@ 
         // Other Identifiers
         $this->key             = $this->setup_invoice_key();
         $this->number          = $this->setup_invoice_number();
-        $this->title           = !empty( $invoice->post_title ) ? $invoice->post_title : $this->number;
+        $this->title           = !empty($invoice->post_title) ? $invoice->post_title : $this->number;
         
-        $this->full_name       = trim( $this->first_name . ' '. $this->last_name );
+        $this->full_name       = trim($this->first_name . ' ' . $this->last_name);
         
         // Allow extensions to add items to this object via hook
-        do_action( 'wpinv_setup_invoice', $this, $invoice_id );
+        do_action('wpinv_setup_invoice', $this, $invoice_id);
 
         return true;
     }
     
-    private function setup_status_nicename( $status ) {
-        $all_invoice_statuses  = wpinv_get_invoice_statuses( true, true, $this );
+    private function setup_status_nicename($status) {
+        $all_invoice_statuses = wpinv_get_invoice_statuses(true, true, $this);
 
-        if ( $this->is_quote() && class_exists( 'Wpinv_Quotes_Shared' ) ) {
-            $all_invoice_statuses  = Wpinv_Quotes_Shared::wpinv_get_quote_statuses();
+        if ($this->is_quote() && class_exists('Wpinv_Quotes_Shared')) {
+            $all_invoice_statuses = Wpinv_Quotes_Shared::wpinv_get_quote_statuses();
         }
-        $status   = isset( $all_invoice_statuses[$status] ) ? $all_invoice_statuses[$status] : __( $status, 'invoicing' );
+        $status = isset($all_invoice_statuses[$status]) ? $all_invoice_statuses[$status] : __($status, 'invoicing');
 
-        return apply_filters( 'setup_status_nicename', $status );
+        return apply_filters('setup_status_nicename', $status);
     }
     
-    private function setup_post_name( $post = NULL ) {
+    private function setup_post_name($post = NULL) {
         global $wpdb;
         
         $post_name = '';
         
-        if ( !empty( $post ) ) {
-            if( !empty( $post->post_name ) ) {
+        if (!empty($post)) {
+            if (!empty($post->post_name)) {
                 $post_name = $post->post_name;
-            } else if ( !empty( $post->ID ) ) {
-                $post_name = wpinv_generate_post_name( $post->ID );
+            } else if (!empty($post->ID)) {
+                $post_name = wpinv_generate_post_name($post->ID);
 
-                $wpdb->update( $wpdb->posts, array( 'post_name' => $post_name ), array( 'ID' => $post->ID ) );
+                $wpdb->update($wpdb->posts, array('post_name' => $post_name), array('ID' => $post->ID));
             }
         }
 
@@ -226,12 +226,12 @@ 
     }
     
     private function setup_due_date() {
-        $due_date = $this->get_meta( '_wpinv_due_date' );
+        $due_date = $this->get_meta('_wpinv_due_date');
         
-        if ( empty( $due_date ) ) {
-            $overdue_time = strtotime( $this->date ) + ( DAY_IN_SECONDS * absint( wpinv_get_option( 'overdue_days' ) ) );
-            $due_date = date_i18n( 'Y-m-d', $overdue_time );
-        } else if ( $due_date == 'none' ) {
+        if (empty($due_date)) {
+            $overdue_time = strtotime($this->date) + (DAY_IN_SECONDS * absint(wpinv_get_option('overdue_days')));
+            $due_date = date_i18n('Y-m-d', $overdue_time);
+        } else if ($due_date == 'none') {
             $due_date = '';
         }
         
@@ -239,66 +239,66 @@ 
     }
     
     private function setup_completed_date() {
-        $invoice = get_post( $this->ID );
+        $invoice = get_post($this->ID);
 
-        if ( 'wpi-pending' == $invoice->post_status || 'preapproved' == $invoice->post_status ) {
+        if ('wpi-pending' == $invoice->post_status || 'preapproved' == $invoice->post_status) {
             return false; // This invoice was never paid
         }
 
-        $date = ( $date = $this->get_meta( '_wpinv_completed_date', true ) ) ? $date : $invoice->modified_date;
+        $date = ($date = $this->get_meta('_wpinv_completed_date', true)) ? $date : $invoice->modified_date;
 
         return $date;
     }
     
     private function setup_cart_details() {
-        $cart_details = isset( $this->payment_meta['cart_details'] ) ? maybe_unserialize( $this->payment_meta['cart_details'] ) : array();
+        $cart_details = isset($this->payment_meta['cart_details']) ? maybe_unserialize($this->payment_meta['cart_details']) : array();
         return $cart_details;
     }
     
     public function array_convert() {
-        return get_object_vars( $this );
+        return get_object_vars($this);
     }
     
     private function setup_items() {
-        $items = isset( $this->payment_meta['items'] ) ? maybe_unserialize( $this->payment_meta['items'] ) : array();
+        $items = isset($this->payment_meta['items']) ? maybe_unserialize($this->payment_meta['items']) : array();
         return $items;
     }
     
     private function setup_fees() {
-        $payment_fees = isset( $this->payment_meta['fees'] ) ? $this->payment_meta['fees'] : array();
+        $payment_fees = isset($this->payment_meta['fees']) ? $this->payment_meta['fees'] : array();
         return $payment_fees;
     }
         
     private function setup_currency() {
-        $currency = isset( $this->payment_meta['currency'] ) ? $this->payment_meta['currency'] : apply_filters( 'wpinv_currency_default', wpinv_get_currency(), $this );
+        $currency = isset($this->payment_meta['currency']) ? $this->payment_meta['currency'] : apply_filters('wpinv_currency_default', wpinv_get_currency(), $this);
         return $currency;
     }
     
     private function setup_discount() {
         //$discount = $this->get_meta( '_wpinv_discount', true );
-        $discount = (float)$this->subtotal - ( (float)$this->total - (float)$this->tax - (float)$this->fees_total );
-        if ( $discount < 0 ) {
+        $discount = (float) $this->subtotal - ((float) $this->total - (float) $this->tax - (float) $this->fees_total);
+        if ($discount < 0) {
             $discount = 0;
         }
-        $discount = wpinv_round_amount( $discount );
+        $discount = wpinv_round_amount($discount);
         
         return $discount;
     }
     
     private function setup_discount_code() {
-        $discount_code = !empty( $this->discounts ) ? $this->discounts : $this->get_meta( '_wpinv_discount_code', true );
+        $discount_code = !empty($this->discounts) ? $this->discounts : $this->get_meta('_wpinv_discount_code', true);
         return $discount_code;
     }
     
     private function setup_tax() {
-        $tax = $this->get_meta( '_wpinv_tax', true );
+        $tax = $this->get_meta('_wpinv_tax', true);
 
         // We don't have tax as it's own meta and no meta was passed
-        if ( '' === $tax ) {            
-            $tax = isset( $this->payment_meta['tax'] ) ? $this->payment_meta['tax'] : 0;
+        if ('' === $tax) {            
+            $tax = isset($this->payment_meta['tax']) ? $this->payment_meta['tax'] : 0;
         }
         
-        if ( $tax < 0 ) {
+        if ($tax < 0) {
             $tax = 0;
         }
 
@@ -309,9 +309,9 @@ 
         $subtotal     = 0;
         $cart_details = $this->cart_details;
 
-        if ( is_array( $cart_details ) ) {
-            foreach ( $cart_details as $item ) {
-                if ( isset( $item['subtotal'] ) ) {
+        if (is_array($cart_details)) {
+            foreach ($cart_details as $item) {
+                if (isset($item['subtotal'])) {
                     $subtotal += $item['subtotal'];
                 }
             }
@@ -325,23 +325,23 @@ 
     }
     
     private function setup_discounts() {
-        $discounts = ! empty( $this->payment_meta['user_info']['discount'] ) ? $this->payment_meta['user_info']['discount'] : array();
+        $discounts = !empty($this->payment_meta['user_info']['discount']) ? $this->payment_meta['user_info']['discount'] : array();
         return $discounts;
     }
     
     private function setup_total() {
-        $amount = $this->get_meta( '_wpinv_total', true );
+        $amount = $this->get_meta('_wpinv_total', true);
 
-        if ( empty( $amount ) && '0.00' != $amount ) {
-            $meta   = $this->get_meta( '_wpinv_payment_meta', true );
-            $meta   = maybe_unserialize( $meta );
+        if (empty($amount) && '0.00' != $amount) {
+            $meta   = $this->get_meta('_wpinv_payment_meta', true);
+            $meta   = maybe_unserialize($meta);
 
-            if ( isset( $meta['amount'] ) ) {
+            if (isset($meta['amount'])) {
                 $amount = $meta['amount'];
             }
         }
 
-        if($amount < 0){
+        if ($amount < 0) {
             $amount = 0;
         }
 
@@ -349,13 +349,13 @@ 
     }
     
     private function setup_mode() {
-        return $this->get_meta( '_wpinv_mode' );
+        return $this->get_meta('_wpinv_mode');
     }
 
     private function setup_gateway() {
-        $gateway = $this->get_meta( '_wpinv_gateway' );
+        $gateway = $this->get_meta('_wpinv_gateway');
         
-        if ( empty( $gateway ) && 'publish' === $this->status ) {
+        if (empty($gateway) && 'publish' === $this->status) {
             $gateway = 'manual';
         }
         
@@ -363,23 +363,23 @@ 
     }
     
     private function setup_gateway_title() {
-        $gateway_title = wpinv_get_gateway_checkout_label( $this->gateway );
+        $gateway_title = wpinv_get_gateway_checkout_label($this->gateway);
         return $gateway_title;
     }
 
     private function setup_transaction_id() {
-        $transaction_id = $this->get_meta( '_wpinv_transaction_id' );
+        $transaction_id = $this->get_meta('_wpinv_transaction_id');
 
-        if ( empty( $transaction_id ) || (int) $transaction_id === (int) $this->ID ) {
+        if (empty($transaction_id) || (int) $transaction_id === (int) $this->ID) {
             $gateway        = $this->gateway;
-            $transaction_id = apply_filters( 'wpinv_get_invoice_transaction_id-' . $gateway, $this->ID );
+            $transaction_id = apply_filters('wpinv_get_invoice_transaction_id-' . $gateway, $this->ID);
         }
 
         return $transaction_id;
     }
 
     private function setup_ip() {
-        $ip = $this->get_meta( '_wpinv_user_ip' );
+        $ip = $this->get_meta('_wpinv_user_ip');
         return $ip;
     }
 
@@ -389,62 +389,62 @@ 
     ///}
         
     private function setup_first_name() {
-        $first_name = $this->get_meta( '_wpinv_first_name' );
+        $first_name = $this->get_meta('_wpinv_first_name');
         return $first_name;
     }
     
     private function setup_last_name() {
-        $last_name = $this->get_meta( '_wpinv_last_name' );
+        $last_name = $this->get_meta('_wpinv_last_name');
         return $last_name;
     }
     
     private function setup_company() {
-        $company = $this->get_meta( '_wpinv_company' );
+        $company = $this->get_meta('_wpinv_company');
         return $company;
     }
     
     private function setup_vat_number() {
-        $vat_number = $this->get_meta( '_wpinv_vat_number' );
+        $vat_number = $this->get_meta('_wpinv_vat_number');
         return $vat_number;
     }
     
     private function setup_vat_rate() {
-        $vat_rate = $this->get_meta( '_wpinv_vat_rate' );
+        $vat_rate = $this->get_meta('_wpinv_vat_rate');
         return $vat_rate;
     }
     
     private function setup_adddress_confirmed() {
-        $adddress_confirmed = $this->get_meta( '_wpinv_adddress_confirmed' );
+        $adddress_confirmed = $this->get_meta('_wpinv_adddress_confirmed');
         return $adddress_confirmed;
     }
     
     private function setup_phone() {
-        $phone = $this->get_meta( '_wpinv_phone' );
+        $phone = $this->get_meta('_wpinv_phone');
         return $phone;
     }
     
     private function setup_address() {
-        $address = $this->get_meta( '_wpinv_address', true );
+        $address = $this->get_meta('_wpinv_address', true);
         return $address;
     }
     
     private function setup_city() {
-        $city = $this->get_meta( '_wpinv_city', true );
+        $city = $this->get_meta('_wpinv_city', true);
         return $city;
     }
     
     private function setup_country() {
-        $country = $this->get_meta( '_wpinv_country', true );
+        $country = $this->get_meta('_wpinv_country', true);
         return $country;
     }
     
     private function setup_state() {
-        $state = $this->get_meta( '_wpinv_state', true );
+        $state = $this->get_meta('_wpinv_state', true);
         return $state;
     }
     
     private function setup_zip() {
-        $zip = $this->get_meta( '_wpinv_zip', true );
+        $zip = $this->get_meta('_wpinv_zip', true);
         return $zip;
     }
 
@@ -453,7 +453,7 @@ 
             'user_id'        => $this->user_id,
             'first_name'     => $this->first_name,
             'last_name'      => $this->last_name,
-            'email'          => get_the_author_meta( 'email', $this->user_id ),
+            'email'          => get_the_author_meta('email', $this->user_id),
             'phone'          => $this->phone,
             'address'        => $this->address,
             'city'           => $this->city,
@@ -468,12 +468,12 @@ 
         );
         
         $user_info = array();
-        if ( isset( $this->payment_meta['user_info'] ) ) {
-            $user_info = maybe_unserialize( $this->payment_meta['user_info'] );
+        if (isset($this->payment_meta['user_info'])) {
+            $user_info = maybe_unserialize($this->payment_meta['user_info']);
             
-            if ( !empty( $user_info ) && isset( $user_info['user_id'] ) && $post = get_post( $this->ID ) ) {
+            if (!empty($user_info) && isset($user_info['user_id']) && $post = get_post($this->ID)) {
                 $this->user_id = $post->post_author;
-                $this->email = get_the_author_meta( 'email', $this->user_id );
+                $this->email = get_the_author_meta('email', $this->user_id);
                 
                 $user_info['user_id'] = $this->user_id;
                 $user_info['email'] = $this->email;
@@ -482,13 +482,13 @@ 
             }
         }
         
-        $user_info    = wp_parse_args( $user_info, $defaults );
+        $user_info = wp_parse_args($user_info, $defaults);
         
         // Get the user, but only if it's been created
-        $user = get_userdata( $this->user_id );
+        $user = get_userdata($this->user_id);
         
-        if ( !empty( $user ) && $user->ID > 0 ) {
-            if ( empty( $user_info ) ) {
+        if (!empty($user) && $user->ID > 0) {
+            if (empty($user_info)) {
                 $user_info = array(
                     'user_id'    => $user->ID,
                     'first_name' => $user->first_name,
@@ -497,23 +497,23 @@ 
                     'discount'   => '',
                 );
             } else {
-                foreach ( $user_info as $key => $value ) {
-                    if ( ! empty( $value ) ) {
+                foreach ($user_info as $key => $value) {
+                    if (!empty($value)) {
                         continue;
                     }
 
-                    switch( $key ) {
+                    switch ($key) {
                         case 'user_id':
-                            $user_info[ $key ] = $user->ID;
+                            $user_info[$key] = $user->ID;
                             break;
                         case 'first_name':
-                            $user_info[ $key ] = $user->first_name;
+                            $user_info[$key] = $user->first_name;
                             break;
                         case 'last_name':
-                            $user_info[ $key ] = $user->last_name;
+                            $user_info[$key] = $user->last_name;
                             break;
                         case 'email':
-                            $user_info[ $key ] = $user->user_email;
+                            $user_info[$key] = $user->user_email;
                             break;
                     }
                 }
@@ -524,25 +524,25 @@ 
     }
 
     private function setup_invoice_key() {
-        $key = $this->get_meta( '_wpinv_key', true );
+        $key = $this->get_meta('_wpinv_key', true);
         
         return $key;
     }
 
     private function setup_invoice_number() {
-        $number = $this->get_meta( '_wpinv_number', true );
+        $number = $this->get_meta('_wpinv_number', true);
 
-        if ( !$number ) {
+        if (!$number) {
             $number = $this->ID;
 
-            if ( $this->status == 'auto-draft' ) {
-                if ( wpinv_sequential_number_active( $this->post_type ) ) {
-                    $next_number = wpinv_get_next_invoice_number( $this->post_type );
+            if ($this->status == 'auto-draft') {
+                if (wpinv_sequential_number_active($this->post_type)) {
+                    $next_number = wpinv_get_next_invoice_number($this->post_type);
                     $number      = $next_number;
                 }
             }
             
-            $number = wpinv_format_invoice_number( $number, $this->post_type );
+            $number = wpinv_format_invoice_number($number, $this->post_type);
         }
 
         return $number;
@@ -551,10 +551,10 @@ 
     private function insert_invoice() {
         global $wpdb;
 
-        if ( empty( $this->post_type ) ) {
-            if ( !empty( $this->ID ) && $post_type = get_post_type( $this->ID ) ) {
+        if (empty($this->post_type)) {
+            if (!empty($this->ID) && $post_type = get_post_type($this->ID)) {
                 $this->post_type = $post_type;
-            } else if ( !empty( $this->parent_invoice ) && $post_type = get_post_type( $this->parent_invoice ) ) {
+            } else if (!empty($this->parent_invoice) && $post_type = get_post_type($this->parent_invoice)) {
                 $this->post_type = $post_type;
             } else {
                 $this->post_type = 'wpi_invoice';
@@ -562,16 +562,16 @@ 
         }
 
         $invoice_number = $this->ID;
-        if ( $number = $this->get_meta( '_wpinv_number', true ) ) {
+        if ($number = $this->get_meta('_wpinv_number', true)) {
             $invoice_number = $number;
         }
 
-        if ( empty( $this->key ) ) {
+        if (empty($this->key)) {
             $this->key = self::generate_key();
             $this->pending['key'] = $this->key;
         }
 
-        if ( empty( $this->ip ) ) {
+        if (empty($this->ip)) {
             $this->ip = wpinv_get_ip();
             $this->pending['ip'] = $this->ip;
         }
@@ -608,61 +608,61 @@ 
                         'post_status'   => $this->status,
                         'post_author'   => $this->user_id,
                         'post_type'     => $this->post_type,
-                        'post_date'     => ! empty( $this->date ) && $this->date != '0000-00-00 00:00:00' ? $this->date : current_time( 'mysql' ),
-                        'post_date_gmt' => ! empty( $this->date ) && $this->date != '0000-00-00 00:00:00' ? get_gmt_from_date( $this->date ) : current_time( 'mysql', 1 ),
+                        'post_date'     => !empty($this->date) && $this->date != '0000-00-00 00:00:00' ? $this->date : current_time('mysql'),
+                        'post_date_gmt' => !empty($this->date) && $this->date != '0000-00-00 00:00:00' ? get_gmt_from_date($this->date) : current_time('mysql', 1),
                         'post_parent'   => $this->parent_invoice,
                     );
-        $args = apply_filters( 'wpinv_insert_invoice_args', $post_data, $this );
+        $args = apply_filters('wpinv_insert_invoice_args', $post_data, $this);
 
         // Create a blank invoice
-        if ( !empty( $this->ID ) ) {
-            $args['ID']         = $this->ID;
+        if (!empty($this->ID)) {
+            $args['ID'] = $this->ID;
 
-            $invoice_id = wp_update_post( $args, true );
+            $invoice_id = wp_update_post($args, true);
         } else {
-            $invoice_id = wp_insert_post( $args, true );
+            $invoice_id = wp_insert_post($args, true);
         }
 
-        if ( is_wp_error( $invoice_id ) ) {
+        if (is_wp_error($invoice_id)) {
             return false;
         }
 
-        if ( !empty( $invoice_id ) ) {
+        if (!empty($invoice_id)) {
             $this->ID  = $invoice_id;
             $this->_ID = $invoice_id;
 
-            $this->payment_meta = apply_filters( 'wpinv_payment_meta', $this->payment_meta, $payment_data );
-            if ( ! empty( $this->payment_meta['fees'] ) ) {
-                $this->fees = array_merge( $this->fees, $this->payment_meta['fees'] );
-                foreach( $this->fees as $fee ) {
-                    $this->increase_fees( $fee['amount'] );
+            $this->payment_meta = apply_filters('wpinv_payment_meta', $this->payment_meta, $payment_data);
+            if (!empty($this->payment_meta['fees'])) {
+                $this->fees = array_merge($this->fees, $this->payment_meta['fees']);
+                foreach ($this->fees as $fee) {
+                    $this->increase_fees($fee['amount']);
                 }
             }
 
-            $this->update_meta( '_wpinv_payment_meta', $this->payment_meta );    
+            $this->update_meta('_wpinv_payment_meta', $this->payment_meta);    
             $this->new = true;
         }
 
         return $this->ID;
     }
 
-    public function save( $setup = false ) {
+    public function save($setup = false) {
         global $wpi_session;
         
         $saved = false;
-        if ( empty( $this->items ) ) {
+        if (empty($this->items)) {
             return $saved; // Don't save empty invoice.
         }
         
-        if ( empty( $this->key ) ) {
+        if (empty($this->key)) {
             $this->key = self::generate_key();
             $this->pending['key'] = $this->key;
         }
         
-        if ( empty( $this->ID ) ) {
+        if (empty($this->ID)) {
             $invoice_id = $this->insert_invoice();
 
-            if ( false === $invoice_id ) {
+            if (false === $invoice_id) {
                 $saved = false;
             } else {
                 $this->ID = $invoice_id;
@@ -670,27 +670,27 @@ 
         }
 
         // If we have something pending, let's save it
-        if ( !empty( $this->pending ) ) {
+        if (!empty($this->pending)) {
             $total_increase = 0;
             $total_decrease = 0;
 
-            foreach ( $this->pending as $key => $value ) {
-                switch( $key ) {
+            foreach ($this->pending as $key => $value) {
+                switch ($key) {
                     case 'items':
                         // Update totals for pending items
-                        foreach ( $this->pending[ $key ] as $item ) {
-                            switch( $item['action'] ) {
+                        foreach ($this->pending[$key] as $item) {
+                            switch ($item['action']) {
                                 case 'add':
                                     $price = $item['price'];
                                     $taxes = $item['tax'];
 
-                                    if ( 'publish' === $this->status ) {
+                                    if ('publish' === $this->status) {
                                         $total_increase += $price;
                                     }
                                     break;
 
                                 case 'remove':
-                                    if ( 'publish' === $this->status ) {
+                                    if ('publish' === $this->status) {
                                         $total_decrease += $item['price'];
                                     }
                                     break;
@@ -698,16 +698,16 @@ 
                         }
                         break;
                     case 'fees':
-                        if ( 'publish' !== $this->status ) {
+                        if ('publish' !== $this->status) {
                             break;
                         }
 
-                        if ( empty( $this->pending[ $key ] ) ) {
+                        if (empty($this->pending[$key])) {
                             break;
                         }
 
-                        foreach ( $this->pending[ $key ] as $fee ) {
-                            switch( $fee['action'] ) {
+                        foreach ($this->pending[$key] as $fee) {
+                            switch ($fee['action']) {
                                 case 'add':
                                     $total_increase += $fee['amount'];
                                     break;
@@ -719,83 +719,83 @@ 
                         }
                         break;
                     case 'status':
-                        $this->update_status( $this->status );
+                        $this->update_status($this->status);
                         break;
                     case 'gateway':
-                        $this->update_meta( '_wpinv_gateway', $this->gateway );
+                        $this->update_meta('_wpinv_gateway', $this->gateway);
                         break;
                     case 'mode':
-                        $this->update_meta( '_wpinv_mode', $this->mode );
+                        $this->update_meta('_wpinv_mode', $this->mode);
                         break;
                     case 'transaction_id':
-                        $this->update_meta( '_wpinv_transaction_id', $this->transaction_id );
+                        $this->update_meta('_wpinv_transaction_id', $this->transaction_id);
                         break;
                     case 'ip':
-                        $this->update_meta( '_wpinv_user_ip', $this->ip );
+                        $this->update_meta('_wpinv_user_ip', $this->ip);
                         break;
                     ///case 'user_id':
                         ///$this->update_meta( '_wpinv_user_id', $this->user_id );
                         ///$this->user_info['user_id'] = $this->user_id;
                         ///break;
                     case 'first_name':
-                        $this->update_meta( '_wpinv_first_name', $this->first_name );
+                        $this->update_meta('_wpinv_first_name', $this->first_name);
                         $this->user_info['first_name'] = $this->first_name;
                         break;
                     case 'last_name':
-                        $this->update_meta( '_wpinv_last_name', $this->last_name );
+                        $this->update_meta('_wpinv_last_name', $this->last_name);
                         $this->user_info['last_name'] = $this->last_name;
                         break;
                     case 'phone':
-                        $this->update_meta( '_wpinv_phone', $this->phone );
+                        $this->update_meta('_wpinv_phone', $this->phone);
                         $this->user_info['phone'] = $this->phone;
                         break;
                     case 'address':
-                        $this->update_meta( '_wpinv_address', $this->address );
+                        $this->update_meta('_wpinv_address', $this->address);
                         $this->user_info['address'] = $this->address;
                         break;
                     case 'city':
-                        $this->update_meta( '_wpinv_city', $this->city );
+                        $this->update_meta('_wpinv_city', $this->city);
                         $this->user_info['city'] = $this->city;
                         break;
                     case 'country':
-                        $this->update_meta( '_wpinv_country', $this->country );
+                        $this->update_meta('_wpinv_country', $this->country);
                         $this->user_info['country'] = $this->country;
                         break;
                     case 'state':
-                        $this->update_meta( '_wpinv_state', $this->state );
+                        $this->update_meta('_wpinv_state', $this->state);
                         $this->user_info['state'] = $this->state;
                         break;
                     case 'zip':
-                        $this->update_meta( '_wpinv_zip', $this->zip );
+                        $this->update_meta('_wpinv_zip', $this->zip);
                         $this->user_info['zip'] = $this->zip;
                         break;
                     case 'company':
-                        $this->update_meta( '_wpinv_company', $this->company );
+                        $this->update_meta('_wpinv_company', $this->company);
                         $this->user_info['company'] = $this->company;
                         break;
                     case 'vat_number':
-                        $this->update_meta( '_wpinv_vat_number', $this->vat_number );
+                        $this->update_meta('_wpinv_vat_number', $this->vat_number);
                         $this->user_info['vat_number'] = $this->vat_number;
                         
-                        $vat_info = $wpi_session->get( 'user_vat_data' );
-                        if ( $this->vat_number && !empty( $vat_info ) && isset( $vat_info['number'] ) && isset( $vat_info['valid'] ) && $vat_info['number'] == $this->vat_number ) {
-                            $adddress_confirmed = isset( $vat_info['adddress_confirmed'] ) ? $vat_info['adddress_confirmed'] : false;
-                            $this->update_meta( '_wpinv_adddress_confirmed', (bool)$adddress_confirmed );
-                            $this->user_info['adddress_confirmed'] = (bool)$adddress_confirmed;
+                        $vat_info = $wpi_session->get('user_vat_data');
+                        if ($this->vat_number && !empty($vat_info) && isset($vat_info['number']) && isset($vat_info['valid']) && $vat_info['number'] == $this->vat_number) {
+                            $adddress_confirmed = isset($vat_info['adddress_confirmed']) ? $vat_info['adddress_confirmed'] : false;
+                            $this->update_meta('_wpinv_adddress_confirmed', (bool) $adddress_confirmed);
+                            $this->user_info['adddress_confirmed'] = (bool) $adddress_confirmed;
                         }
     
                         break;
                     case 'vat_rate':
-                        $this->update_meta( '_wpinv_vat_rate', $this->vat_rate );
+                        $this->update_meta('_wpinv_vat_rate', $this->vat_rate);
                         $this->user_info['vat_rate'] = $this->vat_rate;
                         break;
                     case 'adddress_confirmed':
-                        $this->update_meta( '_wpinv_adddress_confirmed', $this->adddress_confirmed );
+                        $this->update_meta('_wpinv_adddress_confirmed', $this->adddress_confirmed);
                         $this->user_info['adddress_confirmed'] = $this->adddress_confirmed;
                         break;
                     
                     case 'key':
-                        $this->update_meta( '_wpinv_key', $this->key );
+                        $this->update_meta('_wpinv_key', $this->key);
                         break;
                     case 'date':
                         $args = array(
@@ -804,49 +804,49 @@ 
                             'edit_date' => true,
                         );
 
-                        wp_update_post( $args );
+                        wp_update_post($args);
                         break;
                     case 'due_date':
-                        if ( empty( $this->due_date ) ) {
+                        if (empty($this->due_date)) {
                             $this->due_date = 'none';
                         }
                         
-                        $this->update_meta( '_wpinv_due_date', $this->due_date );
+                        $this->update_meta('_wpinv_due_date', $this->due_date);
                         break;
                     case 'completed_date':
-                        $this->update_meta( '_wpinv_completed_date', $this->completed_date );
+                        $this->update_meta('_wpinv_completed_date', $this->completed_date);
                         break;
                     case 'discounts':
-                        if ( ! is_array( $this->discounts ) ) {
-                            $this->discounts = explode( ',', $this->discounts );
+                        if (!is_array($this->discounts)) {
+                            $this->discounts = explode(',', $this->discounts);
                         }
 
-                        $this->user_info['discount'] = implode( ',', $this->discounts );
+                        $this->user_info['discount'] = implode(',', $this->discounts);
                         break;
                     case 'discount':
-                        $this->update_meta( '_wpinv_discount', wpinv_round_amount( $this->discount ) );
+                        $this->update_meta('_wpinv_discount', wpinv_round_amount($this->discount));
                         break;
                     case 'discount_code':
-                        $this->update_meta( '_wpinv_discount_code', $this->discount_code );
+                        $this->update_meta('_wpinv_discount_code', $this->discount_code);
                         break;
                     case 'parent_invoice':
                         $args = array(
                             'ID'          => $this->ID,
                             'post_parent' => $this->parent_invoice,
                         );
-                        wp_update_post( $args );
+                        wp_update_post($args);
                         break;
                     default:
-                        do_action( 'wpinv_save', $this, $key );
+                        do_action('wpinv_save', $this, $key);
                         break;
                 }
             }
 
-            $this->update_meta( '_wpinv_subtotal', wpinv_round_amount( $this->subtotal ) );
-            $this->update_meta( '_wpinv_total', wpinv_round_amount( $this->total ) );
-            $this->update_meta( '_wpinv_tax', wpinv_round_amount( $this->tax ) );
+            $this->update_meta('_wpinv_subtotal', wpinv_round_amount($this->subtotal));
+            $this->update_meta('_wpinv_total', wpinv_round_amount($this->total));
+            $this->update_meta('_wpinv_tax', wpinv_round_amount($this->tax));
             
-            $this->items    = array_values( $this->items );
+            $this->items = array_values($this->items);
             
             $new_meta = array(
                 'items'         => $this->items,
@@ -857,12 +857,12 @@ 
             );
             
             $meta        = $this->get_meta();
-            $merged_meta = array_merge( $meta, $new_meta );
+            $merged_meta = array_merge($meta, $new_meta);
 
             // Only save the payment meta if it's changed
-            if ( md5( serialize( $meta ) ) !== md5( serialize( $merged_meta) ) ) {
-                $updated     = $this->update_meta( '_wpinv_payment_meta', $merged_meta );
-                if ( false !== $updated ) {
+            if (md5(serialize($meta)) !== md5(serialize($merged_meta))) {
+                $updated = $this->update_meta('_wpinv_payment_meta', $merged_meta);
+                if (false !== $updated) {
                     $saved = true;
                 }
             }
@@ -870,15 +870,15 @@ 
             $this->pending = array();
             $saved         = true;
         } else {
-            $this->update_meta( '_wpinv_subtotal', wpinv_round_amount( $this->subtotal ) );
-            $this->update_meta( '_wpinv_total', wpinv_round_amount( $this->total ) );
-            $this->update_meta( '_wpinv_tax', wpinv_round_amount( $this->tax ) );
+            $this->update_meta('_wpinv_subtotal', wpinv_round_amount($this->subtotal));
+            $this->update_meta('_wpinv_total', wpinv_round_amount($this->total));
+            $this->update_meta('_wpinv_tax', wpinv_round_amount($this->tax));
         }
         
-        do_action( 'wpinv_invoice_save', $this, $saved );
+        do_action('wpinv_invoice_save', $this, $saved);
 
-        if ( true === $saved || $setup ) {
-            $this->setup_invoice( $this->ID );
+        if (true === $saved || $setup) {
+            $this->setup_invoice($this->ID);
         }
         
         $this->refresh_item_ids();
@@ -886,7 +886,7 @@ 
         return $saved;
     }
     
-    public function add_fee( $args, $global = true ) {
+    public function add_fee($args, $global = true) {
         $default_args = array(
             'label'       => '',
             'amount'      => 0,
@@ -896,75 +896,75 @@ 
             'item_id'     => 0,
         );
 
-        $fee = wp_parse_args( $args, $default_args );
+        $fee = wp_parse_args($args, $default_args);
         
-        if ( empty( $fee['label'] ) ) {
+        if (empty($fee['label'])) {
             return false;
         }
         
-        $fee['id']  = sanitize_title( $fee['label'] );
+        $fee['id'] = sanitize_title($fee['label']);
         
-        $this->fees[]               = $fee;
+        $this->fees[] = $fee;
         
         $added_fee               = $fee;
         $added_fee['action']     = 'add';
         $this->pending['fees'][] = $added_fee;
-        reset( $this->fees );
+        reset($this->fees);
 
-        $this->increase_fees( $fee['amount'] );
+        $this->increase_fees($fee['amount']);
         return true;
     }
 
-    public function remove_fee( $key ) {
+    public function remove_fee($key) {
         $removed = false;
 
-        if ( is_numeric( $key ) ) {
-            $removed = $this->remove_fee_by( 'index', $key );
+        if (is_numeric($key)) {
+            $removed = $this->remove_fee_by('index', $key);
         }
 
         return $removed;
     }
 
-    public function remove_fee_by( $key, $value, $global = false ) {
-        $allowed_fee_keys = apply_filters( 'wpinv_fee_keys', array(
+    public function remove_fee_by($key, $value, $global = false) {
+        $allowed_fee_keys = apply_filters('wpinv_fee_keys', array(
             'index', 'label', 'amount', 'type',
-        ) );
+        ));
 
-        if ( ! in_array( $key, $allowed_fee_keys ) ) {
+        if (!in_array($key, $allowed_fee_keys)) {
             return false;
         }
 
         $removed = false;
-        if ( 'index' === $key && array_key_exists( $value, $this->fees ) ) {
-            $removed_fee             = $this->fees[ $value ];
+        if ('index' === $key && array_key_exists($value, $this->fees)) {
+            $removed_fee             = $this->fees[$value];
             $removed_fee['action']   = 'remove';
             $this->pending['fees'][] = $removed_fee;
 
-            $this->decrease_fees( $removed_fee['amount'] );
+            $this->decrease_fees($removed_fee['amount']);
 
-            unset( $this->fees[ $value ] );
+            unset($this->fees[$value]);
             $removed = true;
-        } else if ( 'index' !== $key ) {
-            foreach ( $this->fees as $index => $fee ) {
-                if ( isset( $fee[ $key ] ) && $fee[ $key ] == $value ) {
+        } else if ('index' !== $key) {
+            foreach ($this->fees as $index => $fee) {
+                if (isset($fee[$key]) && $fee[$key] == $value) {
                     $removed_fee             = $fee;
                     $removed_fee['action']   = 'remove';
                     $this->pending['fees'][] = $removed_fee;
 
-                    $this->decrease_fees( $removed_fee['amount'] );
+                    $this->decrease_fees($removed_fee['amount']);
 
-                    unset( $this->fees[ $index ] );
+                    unset($this->fees[$index]);
                     $removed = true;
 
-                    if ( false === $global ) {
+                    if (false === $global) {
                         break;
                     }
                 }
             }
         }
 
-        if ( true === $removed ) {
-            $this->fees = array_values( $this->fees );
+        if (true === $removed) {
+            $this->fees = array_values($this->fees);
         }
 
         return $removed;
@@ -972,35 +972,35 @@ 
 
     
 
-    public function add_note( $note = '', $customer_type = false, $added_by_user = false, $system = false ) {
+    public function add_note($note = '', $customer_type = false, $added_by_user = false, $system = false) {
         // Bail if no note specified
-        if( !$note ) {
+        if (!$note) {
             return false;
         }
 
-        if ( empty( $this->ID ) )
+        if (empty($this->ID))
             return false;
         
-        if ( ( ( is_user_logged_in() && wpinv_current_user_can_manage_invoicing() ) || $added_by_user ) && !$system ) {
-            $user                 = get_user_by( 'id', get_current_user_id() );
+        if (((is_user_logged_in() && wpinv_current_user_can_manage_invoicing()) || $added_by_user) && !$system) {
+            $user                 = get_user_by('id', get_current_user_id());
             $comment_author       = $user->display_name;
             $comment_author_email = $user->user_email;
         } else {
             $comment_author       = 'System';
             $comment_author_email = 'system@';
-            $comment_author_email .= isset( $_SERVER['HTTP_HOST'] ) ? str_replace( 'www.', '', $_SERVER['HTTP_HOST'] ) : 'noreply.com';
-            $comment_author_email = sanitize_email( $comment_author_email );
+            $comment_author_email .= isset($_SERVER['HTTP_HOST']) ? str_replace('www.', '', $_SERVER['HTTP_HOST']) : 'noreply.com';
+            $comment_author_email = sanitize_email($comment_author_email);
         }
 
-        do_action( 'wpinv_pre_insert_invoice_note', $this->ID, $note, $customer_type );
+        do_action('wpinv_pre_insert_invoice_note', $this->ID, $note, $customer_type);
 
-        $note_id = wp_insert_comment( wp_filter_comment( array(
+        $note_id = wp_insert_comment(wp_filter_comment(array(
             'comment_post_ID'      => $this->ID,
             'comment_content'      => $note,
             'comment_agent'        => 'WPInvoicing',
             'user_id'              => is_admin() ? get_current_user_id() : 0,
-            'comment_date'         => current_time( 'mysql' ),
-            'comment_date_gmt'     => current_time( 'mysql', 1 ),
+            'comment_date'         => current_time('mysql'),
+            'comment_date_gmt'     => current_time('mysql', 1),
             'comment_approved'     => 1,
             'comment_parent'       => 0,
             'comment_author'       => $comment_author,
@@ -1008,53 +1008,53 @@ 
             'comment_author_url'   => '',
             'comment_author_email' => $comment_author_email,
             'comment_type'         => 'wpinv_note'
-        ) ) );
+        )));
 
-        do_action( 'wpinv_insert_payment_note', $note_id, $this->ID, $note );
+        do_action('wpinv_insert_payment_note', $note_id, $this->ID, $note);
         
-        if ( $customer_type ) {
-            add_comment_meta( $note_id, '_wpi_customer_note', 1 );
+        if ($customer_type) {
+            add_comment_meta($note_id, '_wpi_customer_note', 1);
 
-            do_action( 'wpinv_new_customer_note', array( 'invoice_id' => $this->ID, 'user_note' => $note ) );
+            do_action('wpinv_new_customer_note', array('invoice_id' => $this->ID, 'user_note' => $note));
         }
 
         return $note_id;
     }
 
-    private function increase_subtotal( $amount = 0.00 ) {
+    private function increase_subtotal($amount = 0.00) {
         $amount          = (float) $amount;
         $this->subtotal += $amount;
-        $this->subtotal  = wpinv_round_amount( $this->subtotal );
+        $this->subtotal  = wpinv_round_amount($this->subtotal);
 
         $this->recalculate_total();
     }
 
-    private function decrease_subtotal( $amount = 0.00 ) {
+    private function decrease_subtotal($amount = 0.00) {
         $amount          = (float) $amount;
         $this->subtotal -= $amount;
-        $this->subtotal  = wpinv_round_amount( $this->subtotal );
+        $this->subtotal  = wpinv_round_amount($this->subtotal);
 
-        if ( $this->subtotal < 0 ) {
+        if ($this->subtotal < 0) {
             $this->subtotal = 0;
         }
 
         $this->recalculate_total();
     }
 
-    private function increase_fees( $amount = 0.00 ) {
-        $amount            = (float)$amount;
+    private function increase_fees($amount = 0.00) {
+        $amount            = (float) $amount;
         $this->fees_total += $amount;
-        $this->fees_total  = wpinv_round_amount( $this->fees_total );
+        $this->fees_total  = wpinv_round_amount($this->fees_total);
 
         $this->recalculate_total();
     }
 
-    private function decrease_fees( $amount = 0.00 ) {
+    private function decrease_fees($amount = 0.00) {
         $amount            = (float) $amount;
         $this->fees_total -= $amount;
-        $this->fees_total  = wpinv_round_amount( $this->fees_total );
+        $this->fees_total  = wpinv_round_amount($this->fees_total);
 
-        if ( $this->fees_total < 0 ) {
+        if ($this->fees_total < 0) {
             $this->fees_total = 0;
         }
 
@@ -1065,54 +1065,54 @@ 
         global $wpi_nosave;
         
         $this->total = $this->subtotal + $this->tax + $this->fees_total;
-        $this->total = wpinv_round_amount( $this->total );
+        $this->total = wpinv_round_amount($this->total);
         
-        do_action( 'wpinv_invoice_recalculate_total', $this, $wpi_nosave );
+        do_action('wpinv_invoice_recalculate_total', $this, $wpi_nosave);
     }
     
-    public function increase_tax( $amount = 0.00 ) {
+    public function increase_tax($amount = 0.00) {
         $amount       = (float) $amount;
         $this->tax   += $amount;
 
         $this->recalculate_total();
     }
 
-    public function decrease_tax( $amount = 0.00 ) {
+    public function decrease_tax($amount = 0.00) {
         $amount     = (float) $amount;
         $this->tax -= $amount;
 
-        if ( $this->tax < 0 ) {
+        if ($this->tax < 0) {
             $this->tax = 0;
         }
 
         $this->recalculate_total();
     }
 
-    public function update_status( $new_status = false, $note = '', $manual = false ) {
-        $old_status = ! empty( $this->old_status ) ? $this->old_status : get_post_status( $this->ID );
+    public function update_status($new_status = false, $note = '', $manual = false) {
+        $old_status = !empty($this->old_status) ? $this->old_status : get_post_status($this->ID);
 
-        if ( $old_status === $new_status && in_array( $new_status, array_keys( wpinv_get_invoice_statuses( true ) ) ) ) {
+        if ($old_status === $new_status && in_array($new_status, array_keys(wpinv_get_invoice_statuses(true)))) {
             return false; // Don't permit status changes that aren't changes
         }
 
-        $do_change = apply_filters( 'wpinv_should_update_invoice_status', true, $this->ID, $new_status, $old_status );
+        $do_change = apply_filters('wpinv_should_update_invoice_status', true, $this->ID, $new_status, $old_status);
         $updated = false;
 
-        if ( $do_change ) {
-            do_action( 'wpinv_before_invoice_status_change', $this->ID, $new_status, $old_status );
+        if ($do_change) {
+            do_action('wpinv_before_invoice_status_change', $this->ID, $new_status, $old_status);
 
             $update_post_data                   = array();
             $update_post_data['ID']             = $this->ID;
             $update_post_data['post_status']    = $new_status;
-            $update_post_data['edit_date']      = current_time( 'mysql', 0 );
-            $update_post_data['edit_date_gmt']  = current_time( 'mysql', 1 );
+            $update_post_data['edit_date']      = current_time('mysql', 0);
+            $update_post_data['edit_date_gmt']  = current_time('mysql', 1);
             
-            $update_post_data = apply_filters( 'wpinv_update_invoice_status_fields', $update_post_data, $this->ID );
+            $update_post_data = apply_filters('wpinv_update_invoice_status_fields', $update_post_data, $this->ID);
 
-            $updated = wp_update_post( $update_post_data );     
+            $updated = wp_update_post($update_post_data);     
            
             // Process any specific status functions
-            switch( $new_status ) {
+            switch ($new_status) {
                 case 'wpi-refunded':
                     $this->process_refund();
                     break;
@@ -1125,9 +1125,9 @@ 
             }
             
             // Status was changed.
-            do_action( 'wpinv_status_' . $new_status, $this->ID, $old_status );
-            do_action( 'wpinv_status_' . $old_status . '_to_' . $new_status, $this->ID, $old_status );
-            do_action( 'wpinv_update_status', $this->ID, $new_status, $old_status );
+            do_action('wpinv_status_' . $new_status, $this->ID, $old_status);
+            do_action('wpinv_status_' . $old_status . '_to_' . $new_status, $this->ID, $old_status);
+            do_action('wpinv_update_status', $this->ID, $new_status, $old_status);
         }
 
         return $updated;
@@ -1141,20 +1141,20 @@ 
         $this->save();
     }
 
-    public function update_meta( $meta_key = '', $meta_value = '', $prev_value = '' ) {
-        if ( empty( $meta_key ) ) {
+    public function update_meta($meta_key = '', $meta_value = '', $prev_value = '') {
+        if (empty($meta_key)) {
             return false;
         }
 
-        if ( $meta_key == 'key' || $meta_key == 'date' ) {
+        if ($meta_key == 'key' || $meta_key == 'date') {
             $current_meta = $this->get_meta();
-            $current_meta[ $meta_key ] = $meta_value;
+            $current_meta[$meta_key] = $meta_value;
 
             $meta_key     = '_wpinv_payment_meta';
             $meta_value   = $current_meta;
         }
 
-        $meta_value = apply_filters( 'wpinv_update_payment_meta_' . $meta_key, $meta_value, $this->ID );
+        $meta_value = apply_filters('wpinv_update_payment_meta_' . $meta_key, $meta_value, $this->ID);
         
         // Do not update created date on invoice marked as paid.
         /*if ( $meta_key == '_wpinv_completed_date' && !empty( $meta_value ) ) {
@@ -1169,45 +1169,45 @@ 
             wp_update_post( $args );
         }*/
         
-        return update_post_meta( $this->ID, $meta_key, $meta_value, $prev_value );
+        return update_post_meta($this->ID, $meta_key, $meta_value, $prev_value);
     }
 
     private function process_refund() {
         $process_refund = true;
 
         // If the payment was not in publish, don't decrement stats as they were never incremented
-        if ( 'publish' != $this->old_status || 'wpi-refunded' != $this->status ) {
+        if ('publish' != $this->old_status || 'wpi-refunded' != $this->status) {
             $process_refund = false;
         }
 
         // Allow extensions to filter for their own payment types, Example: Recurring Payments
-        $process_refund = apply_filters( 'wpinv_should_process_refund', $process_refund, $this );
+        $process_refund = apply_filters('wpinv_should_process_refund', $process_refund, $this);
 
-        if ( false === $process_refund ) {
+        if (false === $process_refund) {
             return;
         }
 
-        do_action( 'wpinv_pre_refund_invoice', $this );
+        do_action('wpinv_pre_refund_invoice', $this);
         
-        $decrease_store_earnings = apply_filters( 'wpinv_decrease_store_earnings_on_refund', true, $this );
-        $decrease_customer_value = apply_filters( 'wpinv_decrease_customer_value_on_refund', true, $this );
-        $decrease_purchase_count = apply_filters( 'wpinv_decrease_customer_purchase_count_on_refund', true, $this );
+        $decrease_store_earnings = apply_filters('wpinv_decrease_store_earnings_on_refund', true, $this);
+        $decrease_customer_value = apply_filters('wpinv_decrease_customer_value_on_refund', true, $this);
+        $decrease_purchase_count = apply_filters('wpinv_decrease_customer_purchase_count_on_refund', true, $this);
         
-        do_action( 'wpinv_post_refund_invoice', $this );
+        do_action('wpinv_post_refund_invoice', $this);
     }
 
     private function process_failure() {
         $discounts = $this->discounts;
-        if ( empty( $discounts ) ) {
+        if (empty($discounts)) {
             return;
         }
 
-        if ( ! is_array( $discounts ) ) {
-            $discounts = array_map( 'trim', explode( ',', $discounts ) );
+        if (!is_array($discounts)) {
+            $discounts = array_map('trim', explode(',', $discounts));
         }
 
-        foreach ( $discounts as $discount ) {
-            wpinv_decrease_discount_usage( $discount );
+        foreach ($discounts as $discount) {
+            wpinv_decrease_discount_usage($discount);
         }
     }
     
@@ -1215,92 +1215,92 @@ 
         $process_pending = true;
 
         // If the payment was not in publish or revoked status, don't decrement stats as they were never incremented
-        if ( ( 'publish' != $this->old_status && 'revoked' != $this->old_status ) || 'wpi-pending' != $this->status ) {
+        if (('publish' != $this->old_status && 'revoked' != $this->old_status) || 'wpi-pending' != $this->status) {
             $process_pending = false;
         }
 
         // Allow extensions to filter for their own payment types, Example: Recurring Payments
-        $process_pending = apply_filters( 'wpinv_should_process_pending', $process_pending, $this );
+        $process_pending = apply_filters('wpinv_should_process_pending', $process_pending, $this);
 
-        if ( false === $process_pending ) {
+        if (false === $process_pending) {
             return;
         }
 
-        $decrease_store_earnings = apply_filters( 'wpinv_decrease_store_earnings_on_pending', true, $this );
-        $decrease_customer_value = apply_filters( 'wpinv_decrease_customer_value_on_pending', true, $this );
-        $decrease_purchase_count = apply_filters( 'wpinv_decrease_customer_purchase_count_on_pending', true, $this );
+        $decrease_store_earnings = apply_filters('wpinv_decrease_store_earnings_on_pending', true, $this);
+        $decrease_customer_value = apply_filters('wpinv_decrease_customer_value_on_pending', true, $this);
+        $decrease_purchase_count = apply_filters('wpinv_decrease_customer_purchase_count_on_pending', true, $this);
 
         $this->completed_date = '';
-        $this->update_meta( '_wpinv_completed_date', '' );
+        $this->update_meta('_wpinv_completed_date', '');
     }
     
     // get data
-    public function get_meta( $meta_key = '_wpinv_payment_meta', $single = true ) {
-        $meta = get_post_meta( $this->ID, $meta_key, $single );
+    public function get_meta($meta_key = '_wpinv_payment_meta', $single = true) {
+        $meta = get_post_meta($this->ID, $meta_key, $single);
 
-        if ( $meta_key === '_wpinv_payment_meta' ) {
+        if ($meta_key === '_wpinv_payment_meta') {
 
-            if(!is_array($meta)){$meta = array();} // we need this to be an array so make sure it is.
+            if (!is_array($meta)) {$meta = array(); } // we need this to be an array so make sure it is.
 
-            if ( empty( $meta['key'] ) ) {
+            if (empty($meta['key'])) {
                 $meta['key'] = $this->setup_invoice_key();
             }
 
-            if ( empty( $meta['date'] ) ) {
-                $meta['date'] = get_post_field( 'post_date', $this->ID );
+            if (empty($meta['date'])) {
+                $meta['date'] = get_post_field('post_date', $this->ID);
             }
         }
 
-        $meta = apply_filters( 'wpinv_get_invoice_meta_' . $meta_key, $meta, $this->ID );
+        $meta = apply_filters('wpinv_get_invoice_meta_' . $meta_key, $meta, $this->ID);
 
-        return apply_filters( 'wpinv_get_invoice_meta', $meta, $this->ID, $meta_key );
+        return apply_filters('wpinv_get_invoice_meta', $meta, $this->ID, $meta_key);
     }
     
     public function get_description() {
-        $post = get_post( $this->ID );
+        $post = get_post($this->ID);
         
-        $description = !empty( $post ) ? $post->post_content : '';
-        return apply_filters( 'wpinv_get_description', $description, $this->ID, $this );
+        $description = !empty($post) ? $post->post_content : '';
+        return apply_filters('wpinv_get_description', $description, $this->ID, $this);
     }
     
-    public function get_status( $nicename = false ) {
-        if ( !$nicename ) {
+    public function get_status($nicename = false) {
+        if (!$nicename) {
             $status = $this->status;
         } else {
             $status = $this->status_nicename;
         }
         
-        return apply_filters( 'wpinv_get_status', $status, $nicename, $this->ID, $this );
+        return apply_filters('wpinv_get_status', $status, $nicename, $this->ID, $this);
     }
     
     public function get_cart_details() {
-        return apply_filters( 'wpinv_cart_details', $this->cart_details, $this->ID, $this );
+        return apply_filters('wpinv_cart_details', $this->cart_details, $this->ID, $this);
     }
     
-    public function get_subtotal( $currency = false ) {
-        $subtotal = wpinv_round_amount( $this->subtotal );
+    public function get_subtotal($currency = false) {
+        $subtotal = wpinv_round_amount($this->subtotal);
         
-        if ( $currency ) {
-            $subtotal = wpinv_price( wpinv_format_amount( $subtotal, NULL, !$currency ), $this->get_currency() );
+        if ($currency) {
+            $subtotal = wpinv_price(wpinv_format_amount($subtotal, NULL, !$currency), $this->get_currency());
         }
         
-        return apply_filters( 'wpinv_get_invoice_subtotal', $subtotal, $this->ID, $this, $currency );
+        return apply_filters('wpinv_get_invoice_subtotal', $subtotal, $this->ID, $this, $currency);
     }
     
-    public function get_total( $currency = false ) {        
-        if ( $this->is_free_trial() ) {
-            $total = wpinv_round_amount( 0 );
+    public function get_total($currency = false) {        
+        if ($this->is_free_trial()) {
+            $total = wpinv_round_amount(0);
         } else {
-            $total = wpinv_round_amount( $this->total );
+            $total = wpinv_round_amount($this->total);
         }
-        if ( $currency ) {
-            $total = wpinv_price( wpinv_format_amount( $total, NULL, !$currency ), $this->get_currency() );
+        if ($currency) {
+            $total = wpinv_price(wpinv_format_amount($total, NULL, !$currency), $this->get_currency());
         }
         
-        return apply_filters( 'wpinv_get_invoice_total', $total, $this->ID, $this, $currency );
+        return apply_filters('wpinv_get_invoice_total', $total, $this->ID, $this, $currency);
     }
     
-    public function get_recurring_details( $field = '', $currency = false ) {        
+    public function get_recurring_details($field = '', $currency = false) {        
         $data                 = array();
         $data['cart_details'] = $this->cart_details;
         $data['subtotal']     = $this->get_subtotal();
@@ -1308,164 +1308,164 @@ 
         $data['tax']          = $this->get_tax();
         $data['total']        = $this->get_total();
     
-        if ( !empty( $this->cart_details ) && ( $this->is_parent() || $this->is_renewal() ) ) {
+        if (!empty($this->cart_details) && ($this->is_parent() || $this->is_renewal())) {
             $is_free_trial = $this->is_free_trial();
-            $discounts = $this->get_discounts( true );
+            $discounts = $this->get_discounts(true);
             
-            if ( $is_free_trial || !empty( $discounts ) ) {
+            if ($is_free_trial || !empty($discounts)) {
                 $first_use_only = false;
                 
-                if ( !empty( $discounts ) ) {
-                    foreach ( $discounts as $key => $code ) {
-                        if ( wpinv_discount_is_recurring( $code, true ) && !$this->is_renewal() ) {
+                if (!empty($discounts)) {
+                    foreach ($discounts as $key => $code) {
+                        if (wpinv_discount_is_recurring($code, true) && !$this->is_renewal()) {
                             $first_use_only = true;
                             break;
                         }
                     }
                 }
                     
-                if ( !$first_use_only ) {
-                    $data['subtotal'] = wpinv_round_amount( $this->subtotal );
-                    $data['discount'] = wpinv_round_amount( $this->discount );
-                    $data['tax']      = wpinv_round_amount( $this->tax );
-                    $data['total']    = wpinv_round_amount( $this->total );
+                if (!$first_use_only) {
+                    $data['subtotal'] = wpinv_round_amount($this->subtotal);
+                    $data['discount'] = wpinv_round_amount($this->discount);
+                    $data['tax']      = wpinv_round_amount($this->tax);
+                    $data['total']    = wpinv_round_amount($this->total);
                 } else {
                     $cart_subtotal   = 0;
                     $cart_discount   = $this->discount;
                     $cart_tax        = 0;
 
-                    foreach ( $this->cart_details as $key => $item ) {
-                        $item_quantity  = $item['quantity'] > 0 ? absint( $item['quantity'] ) : 1;
-                        $item_subtotal  = !empty( $item['subtotal'] ) ? $item['subtotal'] : $item['item_price'] * $item_quantity;
+                    foreach ($this->cart_details as $key => $item) {
+                        $item_quantity  = $item['quantity'] > 0 ? absint($item['quantity']) : 1;
+                        $item_subtotal  = !empty($item['subtotal']) ? $item['subtotal'] : $item['item_price'] * $item_quantity;
                         $item_discount  = 0;
-                        $item_tax       = $item_subtotal > 0 && !empty( $item['vat_rate'] ) ? ( $item_subtotal * 0.01 * (float)$item['vat_rate'] ) : 0;
+                        $item_tax       = $item_subtotal > 0 && !empty($item['vat_rate']) ? ($item_subtotal * 0.01 * (float) $item['vat_rate']) : 0;
                         
-                        if ( wpinv_prices_include_tax() ) {
-                            $item_subtotal -= wpinv_round_amount( $item_tax );
+                        if (wpinv_prices_include_tax()) {
+                            $item_subtotal -= wpinv_round_amount($item_tax);
                         }
                         
                         $item_total     = $item_subtotal - $item_discount + $item_tax;
                         // Do not allow totals to go negative
-                        if ( $item_total < 0 ) {
+                        if ($item_total < 0) {
                             $item_total = 0;
                         }
                         
-                        $cart_subtotal  += (float)($item_subtotal);
-                        $cart_discount  += (float)($item_discount);
-                        $cart_tax       += (float)($item_tax);
+                        $cart_subtotal  += (float) ($item_subtotal);
+                        $cart_discount  += (float) ($item_discount);
+                        $cart_tax       += (float) ($item_tax);
                         
-                        $data['cart_details'][$key]['discount']   = wpinv_round_amount( $item_discount );
-                        $data['cart_details'][$key]['tax']        = wpinv_round_amount( $item_tax );
-                        $data['cart_details'][$key]['price']      = wpinv_round_amount( $item_total );
+                        $data['cart_details'][$key]['discount']   = wpinv_round_amount($item_discount);
+                        $data['cart_details'][$key]['tax']        = wpinv_round_amount($item_tax);
+                        $data['cart_details'][$key]['price']      = wpinv_round_amount($item_total);
                     }
 
 	                $total = $data['subtotal'] - $data['discount'] + $data['tax'];
-	                if ( $total < 0 ) {
+	                if ($total < 0) {
 		                $total = 0;
 	                }
 
-                    $data['subtotal'] = wpinv_round_amount( $cart_subtotal );
-                    $data['discount'] = wpinv_round_amount( $cart_discount );
-                    $data['tax']      = wpinv_round_amount( $cart_tax );
-                    $data['total']    = wpinv_round_amount( $total );
+                    $data['subtotal'] = wpinv_round_amount($cart_subtotal);
+                    $data['discount'] = wpinv_round_amount($cart_discount);
+                    $data['tax']      = wpinv_round_amount($cart_tax);
+                    $data['total']    = wpinv_round_amount($total);
                 }
             }
         }
         
-        $data = apply_filters( 'wpinv_get_invoice_recurring_details', $data, $this, $field, $currency );
+        $data = apply_filters('wpinv_get_invoice_recurring_details', $data, $this, $field, $currency);
 
-        if ( isset( $data[$field] ) ) {
-            return ( $currency ? wpinv_price( $data[$field], $this->get_currency() ) : $data[$field] );
+        if (isset($data[$field])) {
+            return ($currency ? wpinv_price($data[$field], $this->get_currency()) : $data[$field]);
         }
         
         return $data;
     }
     
-    public function get_final_tax( $currency = false ) {        
-        $final_total = wpinv_round_amount( $this->tax );
-        if ( $currency ) {
-            $final_total = wpinv_price( wpinv_format_amount( $final_total, NULL, !$currency ), $this->get_currency() );
+    public function get_final_tax($currency = false) {        
+        $final_total = wpinv_round_amount($this->tax);
+        if ($currency) {
+            $final_total = wpinv_price(wpinv_format_amount($final_total, NULL, !$currency), $this->get_currency());
         }
         
-        return apply_filters( 'wpinv_get_invoice_final_total', $final_total, $this, $currency );
+        return apply_filters('wpinv_get_invoice_final_total', $final_total, $this, $currency);
     }
     
-    public function get_discounts( $array = false ) {
+    public function get_discounts($array = false) {
         $discounts = $this->discounts;
-        if ( $array && $discounts ) {
-            $discounts = explode( ',', $discounts );
+        if ($array && $discounts) {
+            $discounts = explode(',', $discounts);
         }
-        return apply_filters( 'wpinv_payment_discounts', $discounts, $this->ID, $this, $array );
+        return apply_filters('wpinv_payment_discounts', $discounts, $this->ID, $this, $array);
     }
     
-    public function get_discount( $currency = false, $dash = false ) {
-        if ( !empty( $this->discounts ) ) {
+    public function get_discount($currency = false, $dash = false) {
+        if (!empty($this->discounts)) {
             global $ajax_cart_details;
             $ajax_cart_details = $this->get_cart_details();
             
-            if ( !empty( $ajax_cart_details ) && count( $ajax_cart_details ) == count( $this->items ) ) {
+            if (!empty($ajax_cart_details) && count($ajax_cart_details) == count($this->items)) {
                 $cart_items = $ajax_cart_details;
             } else {
                 $cart_items = $this->items;
             }
 
-            $this->discount = wpinv_get_cart_items_discount_amount( $cart_items , $this->discounts );
+            $this->discount = wpinv_get_cart_items_discount_amount($cart_items, $this->discounts);
         }
-        $discount   = wpinv_round_amount( $this->discount );
+        $discount   = wpinv_round_amount($this->discount);
         $dash       = $dash && $discount > 0 ? '&ndash;' : '';
         
-        if ( $currency ) {
-            $discount = wpinv_price( wpinv_format_amount( $discount, NULL, !$currency ), $this->get_currency() );
+        if ($currency) {
+            $discount = wpinv_price(wpinv_format_amount($discount, NULL, !$currency), $this->get_currency());
         }
         
-        $discount   = $dash . $discount;
+        $discount = $dash . $discount;
         
-        return apply_filters( 'wpinv_get_invoice_discount', $discount, $this->ID, $this, $currency, $dash );
+        return apply_filters('wpinv_get_invoice_discount', $discount, $this->ID, $this, $currency, $dash);
     }
     
     public function get_discount_code() {
         return $this->discount_code;
     }
     
-    public function get_tax( $currency = false ) {
-        $tax = wpinv_round_amount( $this->tax );
+    public function get_tax($currency = false) {
+        $tax = wpinv_round_amount($this->tax);
         
-        if ( $currency ) {
-            $tax = wpinv_price( wpinv_format_amount( $tax, NULL, !$currency ), $this->get_currency() );
+        if ($currency) {
+            $tax = wpinv_price(wpinv_format_amount($tax, NULL, !$currency), $this->get_currency());
         }
         
-        return apply_filters( 'wpinv_get_invoice_tax', $tax, $this->ID, $this, $currency );
+        return apply_filters('wpinv_get_invoice_tax', $tax, $this->ID, $this, $currency);
     }
     
-    public function get_fees( $type = 'all' ) {
-        $fees    = array();
+    public function get_fees($type = 'all') {
+        $fees = array();
 
-        if ( ! empty( $this->fees ) && is_array( $this->fees ) ) {
-            foreach ( $this->fees as $fee ) {
-                if( 'all' != $type && ! empty( $fee['type'] ) && $type != $fee['type'] ) {
+        if (!empty($this->fees) && is_array($this->fees)) {
+            foreach ($this->fees as $fee) {
+                if ('all' != $type && !empty($fee['type']) && $type != $fee['type']) {
                     continue;
                 }
 
-                $fee['label'] = stripslashes( $fee['label'] );
-                $fee['amount_display'] = wpinv_price( $fee['amount'], $this->get_currency() );
-                $fees[]    = $fee;
+                $fee['label'] = stripslashes($fee['label']);
+                $fee['amount_display'] = wpinv_price($fee['amount'], $this->get_currency());
+                $fees[] = $fee;
             }
         }
 
-        return apply_filters( 'wpinv_get_invoice_fees', $fees, $this->ID, $this );
+        return apply_filters('wpinv_get_invoice_fees', $fees, $this->ID, $this);
     }
     
-    public function get_fees_total( $type = 'all' ) {
+    public function get_fees_total($type = 'all') {
         $fees_total = (float) 0.00;
 
-        $payment_fees = isset( $this->payment_meta['fees'] ) ? $this->payment_meta['fees'] : array();
-        if ( ! empty( $payment_fees ) ) {
-            foreach ( $payment_fees as $fee ) {
+        $payment_fees = isset($this->payment_meta['fees']) ? $this->payment_meta['fees'] : array();
+        if (!empty($payment_fees)) {
+            foreach ($payment_fees as $fee) {
                 $fees_total += (float) $fee['amount'];
             }
         }
 
-        return apply_filters( 'wpinv_get_invoice_fees_total', $fees_total, $this->ID, $this );
+        return apply_filters('wpinv_get_invoice_fees_total', $fees_total, $this->ID, $this);
         /*
         $fees = $this->get_fees( $type );
 
@@ -1485,116 +1485,116 @@ 
     }
 
     public function get_user_id() {
-        return apply_filters( 'wpinv_user_id', $this->user_id, $this->ID, $this );
+        return apply_filters('wpinv_user_id', $this->user_id, $this->ID, $this);
     }
     
     public function get_first_name() {
-        return apply_filters( 'wpinv_first_name', $this->first_name, $this->ID, $this );
+        return apply_filters('wpinv_first_name', $this->first_name, $this->ID, $this);
     }
     
     public function get_last_name() {
-        return apply_filters( 'wpinv_last_name', $this->last_name, $this->ID, $this );
+        return apply_filters('wpinv_last_name', $this->last_name, $this->ID, $this);
     }
     
     public function get_user_full_name() {
-        return apply_filters( 'wpinv_user_full_name', $this->full_name, $this->ID, $this );
+        return apply_filters('wpinv_user_full_name', $this->full_name, $this->ID, $this);
     }
     
     public function get_user_info() {
-        return apply_filters( 'wpinv_user_info', $this->user_info, $this->ID, $this );
+        return apply_filters('wpinv_user_info', $this->user_info, $this->ID, $this);
     }
     
     public function get_email() {
-        return apply_filters( 'wpinv_user_email', $this->email, $this->ID, $this );
+        return apply_filters('wpinv_user_email', $this->email, $this->ID, $this);
     }
     
     public function get_address() {
-        return apply_filters( 'wpinv_address', $this->address, $this->ID, $this );
+        return apply_filters('wpinv_address', $this->address, $this->ID, $this);
     }
     
     public function get_phone() {
-        return apply_filters( 'wpinv_phone', $this->phone, $this->ID, $this );
+        return apply_filters('wpinv_phone', $this->phone, $this->ID, $this);
     }
     
     public function get_number() {
-        return apply_filters( 'wpinv_number', $this->number, $this->ID, $this );
+        return apply_filters('wpinv_number', $this->number, $this->ID, $this);
     }
     
     public function get_items() {
-        return apply_filters( 'wpinv_payment_meta_items', $this->items, $this->ID, $this );
+        return apply_filters('wpinv_payment_meta_items', $this->items, $this->ID, $this);
     }
     
     public function get_key() {
-        return apply_filters( 'wpinv_key', $this->key, $this->ID, $this );
+        return apply_filters('wpinv_key', $this->key, $this->ID, $this);
     }
     
     public function get_transaction_id() {
-        return apply_filters( 'wpinv_get_invoice_transaction_id', $this->transaction_id, $this->ID, $this );
+        return apply_filters('wpinv_get_invoice_transaction_id', $this->transaction_id, $this->ID, $this);
     }
     
     public function get_gateway() {
-        return apply_filters( 'wpinv_gateway', $this->gateway, $this->ID, $this );
+        return apply_filters('wpinv_gateway', $this->gateway, $this->ID, $this);
     }
     
     public function get_gateway_title() {
-        $this->gateway_title = !empty( $this->gateway_title ) ? $this->gateway_title : wpinv_get_gateway_checkout_label( $this->gateway );
+        $this->gateway_title = !empty($this->gateway_title) ? $this->gateway_title : wpinv_get_gateway_checkout_label($this->gateway);
         
-        return apply_filters( 'wpinv_gateway_title', $this->gateway_title, $this->ID, $this );
+        return apply_filters('wpinv_gateway_title', $this->gateway_title, $this->ID, $this);
     }
     
     public function get_currency() {
-        return apply_filters( 'wpinv_currency_code', $this->currency, $this->ID, $this );
+        return apply_filters('wpinv_currency_code', $this->currency, $this->ID, $this);
     }
     
     public function get_created_date() {
-        return apply_filters( 'wpinv_created_date', $this->date, $this->ID, $this );
+        return apply_filters('wpinv_created_date', $this->date, $this->ID, $this);
     }
     
-    public function get_due_date( $display = false ) {
-        $due_date = apply_filters( 'wpinv_due_date', $this->due_date, $this->ID, $this );
+    public function get_due_date($display = false) {
+        $due_date = apply_filters('wpinv_due_date', $this->due_date, $this->ID, $this);
         
-        if ( !$display || empty( $due_date ) ) {
+        if (!$display || empty($due_date)) {
             return $due_date;
         }
         
-        return date_i18n( get_option( 'date_format' ), strtotime( $due_date ) );
+        return date_i18n(get_option('date_format'), strtotime($due_date));
     }
     
     public function get_completed_date() {
-        return apply_filters( 'wpinv_completed_date', $this->completed_date, $this->ID, $this );
+        return apply_filters('wpinv_completed_date', $this->completed_date, $this->ID, $this);
     }
     
-    public function get_invoice_date( $formatted = true ) {
+    public function get_invoice_date($formatted = true) {
         $date_completed = $this->completed_date;
         $invoice_date   = $date_completed != '' && $date_completed != '0000-00-00 00:00:00' ? $date_completed : '';
         
-        if ( $invoice_date == '' ) {
+        if ($invoice_date == '') {
             $date_created   = $this->date;
             $invoice_date   = $date_created != '' && $date_created != '0000-00-00 00:00:00' ? $date_created : '';
         }
         
-        if ( $formatted && $invoice_date ) {
-            $invoice_date   = date_i18n( get_option( 'date_format' ), strtotime( $invoice_date ) );
+        if ($formatted && $invoice_date) {
+            $invoice_date = date_i18n(get_option('date_format'), strtotime($invoice_date));
         }
 
-        return apply_filters( 'wpinv_get_invoice_date', $invoice_date, $formatted, $this->ID, $this );
+        return apply_filters('wpinv_get_invoice_date', $invoice_date, $formatted, $this->ID, $this);
     }
     
     public function get_ip() {
-        return apply_filters( 'wpinv_user_ip', $this->ip, $this->ID, $this );
+        return apply_filters('wpinv_user_ip', $this->ip, $this->ID, $this);
     }
         
-    public function has_status( $status ) {
-        return apply_filters( 'wpinv_has_status', ( is_array( $status ) && in_array( $this->get_status(), $status ) ) || $this->get_status() === $status ? true : false, $this, $status );
+    public function has_status($status) {
+        return apply_filters('wpinv_has_status', (is_array($status) && in_array($this->get_status(), $status)) || $this->get_status() === $status ? true : false, $this, $status);
     }
     
-    public function add_item( $item_id = 0, $args = array() ) {
+    public function add_item($item_id = 0, $args = array()) {
         global $wpi_current_id, $wpi_item_id;
         
-        $item = new WPInv_Item( $item_id );
+        $item = new WPInv_Item($item_id);
 
         // Bail if this post isn't a item
-        if( !$item || $item->post_type !== 'wpi_item' ) {
+        if (!$item || $item->post_type !== 'wpi_item') {
             return false;
         }
         
@@ -1613,8 +1613,8 @@ 
             'fees'          => array()
         );
 
-        $args = wp_parse_args( apply_filters( 'wpinv_add_item_args', $args, $item->ID ), $defaults );
-        $args['quantity']   = $has_quantities && $args['quantity'] > 0 ? absint( $args['quantity'] ) : 1;
+        $args = wp_parse_args(apply_filters('wpinv_add_item_args', $args, $item->ID), $defaults);
+        $args['quantity'] = $has_quantities && $args['quantity'] > 0 ? absint($args['quantity']) : 1;
 
         $wpi_current_id         = $this->ID;
         $wpi_item_id            = $item->ID;
@@ -1626,19 +1626,19 @@ 
         $found_cart_key         = false;
         
         if ($has_quantities) {
-            $this->cart_details = !empty( $this->cart_details ) ? array_values( $this->cart_details ) : $this->cart_details;
+            $this->cart_details = !empty($this->cart_details) ? array_values($this->cart_details) : $this->cart_details;
             
-            foreach ( $this->items as $key => $cart_item ) {
-                if ( (int)$item_id !== (int)$cart_item['id'] ) {
+            foreach ($this->items as $key => $cart_item) {
+                if ((int) $item_id !== (int) $cart_item['id']) {
                     continue;
                 }
 
-                $this->items[ $key ]['quantity'] += $args['quantity'];
+                $this->items[$key]['quantity'] += $args['quantity'];
                 break;
             }
             
-            foreach ( $this->cart_details as $cart_key => $cart_item ) {
-                if ( $item_id != $cart_item['id'] ) {
+            foreach ($this->cart_details as $cart_key => $cart_item) {
+                if ($item_id != $cart_item['id']) {
                     continue;
                 }
 
@@ -1650,29 +1650,29 @@ 
         if ($has_quantities && $found_cart_key !== false) {
             $cart_item          = $this->cart_details[$found_cart_key];
             $item_price         = $cart_item['item_price'];
-            $quantity           = !empty( $cart_item['quantity'] ) ? $cart_item['quantity'] : 1;
-            $tax_rate           = !empty( $cart_item['vat_rate'] ) ? $cart_item['vat_rate'] : 0;
+            $quantity           = !empty($cart_item['quantity']) ? $cart_item['quantity'] : 1;
+            $tax_rate           = !empty($cart_item['vat_rate']) ? $cart_item['vat_rate'] : 0;
             
             $new_quantity       = $quantity + $args['quantity'];
             $subtotal           = $item_price * $new_quantity;
             
             $args['quantity']   = $new_quantity;
-            $discount           = !empty( $args['discount'] ) ? $args['discount'] : 0;
-            $tax                = $subtotal > 0 && $tax_rate > 0 ? ( ( $subtotal - $discount ) * 0.01 * (float)$tax_rate ) : 0;
+            $discount           = !empty($args['discount']) ? $args['discount'] : 0;
+            $tax                = $subtotal > 0 && $tax_rate > 0 ? (($subtotal - $discount) * 0.01 * (float) $tax_rate) : 0;
             
-            $discount_increased = $discount > 0 && $subtotal > 0 && $discount > (float)$cart_item['discount'] ? $discount - (float)$cart_item['discount'] : 0;
-            $tax_increased      = $tax > 0 && $subtotal > 0 && $tax > (float)$cart_item['tax'] ? $tax - (float)$cart_item['tax'] : 0;
+            $discount_increased = $discount > 0 && $subtotal > 0 && $discount > (float) $cart_item['discount'] ? $discount - (float) $cart_item['discount'] : 0;
+            $tax_increased      = $tax > 0 && $subtotal > 0 && $tax > (float) $cart_item['tax'] ? $tax - (float) $cart_item['tax'] : 0;
             // The total increase equals the number removed * the item_price
-            $total_increased    = wpinv_round_amount( $item_price );
+            $total_increased    = wpinv_round_amount($item_price);
             
-            if ( wpinv_prices_include_tax() ) {
-                $subtotal -= wpinv_round_amount( $tax );
+            if (wpinv_prices_include_tax()) {
+                $subtotal -= wpinv_round_amount($tax);
             }
 
-            $total              = $subtotal - $discount + $tax;
+            $total = $subtotal - $discount + $tax;
 
             // Do not allow totals to go negative
-            if( $total < 0 ) {
+            if ($total < 0) {
                 $total = 0;
             }
             
@@ -1688,25 +1688,25 @@ 
             $this->cart_details[$found_cart_key] = $cart_item;
         } else {
             // Set custom price.
-            if ( $args['custom_price'] !== '' ) {
+            if ($args['custom_price'] !== '') {
                 $item_price = $args['custom_price'];
             } else {
                 // Allow overriding the price
-                if ( false !== $args['item_price'] ) {
+                if (false !== $args['item_price']) {
                     $item_price = $args['item_price'];
                 } else {
-                    $item_price = wpinv_get_item_price( $item->ID );
+                    $item_price = wpinv_get_item_price($item->ID);
                 }
             }
 
             // Sanitizing the price here so we don't have a dozen calls later
-            $item_price = wpinv_sanitize_amount( $item_price );
-            $subtotal   = wpinv_round_amount( $item_price * $args['quantity'] );
+            $item_price = wpinv_sanitize_amount($item_price);
+            $subtotal   = wpinv_round_amount($item_price * $args['quantity']);
         
-            $discount   = !empty( $args['discount'] ) ? $args['discount'] : 0;
-            $tax_class  = !empty( $args['vat_class'] ) ? $args['vat_class'] : '';
-            $tax_rate   = !empty( $args['vat_rate'] ) ? $args['vat_rate'] : 0;
-            $tax        = $subtotal > 0 && $tax_rate > 0 ? ( ( $subtotal - $discount ) * 0.01 * (float)$tax_rate ) : 0;
+            $discount   = !empty($args['discount']) ? $args['discount'] : 0;
+            $tax_class  = !empty($args['vat_class']) ? $args['vat_class'] : '';
+            $tax_rate   = !empty($args['vat_rate']) ? $args['vat_rate'] : 0;
+            $tax        = $subtotal > 0 && $tax_rate > 0 ? (($subtotal - $discount) * 0.01 * (float) $tax_rate) : 0;
 
             // Setup the items meta item
             $new_item = array(
@@ -1714,29 +1714,29 @@ 
                 'quantity' => $args['quantity'],
             );
 
-            $this->items[]  = $new_item;
+            $this->items[] = $new_item;
 
-            if ( wpinv_prices_include_tax() ) {
-                $subtotal -= wpinv_round_amount( $tax );
+            if (wpinv_prices_include_tax()) {
+                $subtotal -= wpinv_round_amount($tax);
             }
 
-            $total      = $subtotal - $discount + $tax;
+            $total = $subtotal - $discount + $tax;
 
             // Do not allow totals to go negative
-            if( $total < 0 ) {
+            if ($total < 0) {
                 $total = 0;
             }
         
             $this->cart_details[] = array(
                 'name'          => !empty($args['name']) ? $args['name'] : $item->get_name(),
                 'id'            => $item->ID,
-                'item_price'    => wpinv_round_amount( $item_price ),
-                'custom_price'  => ( $args['custom_price'] !== '' ? wpinv_round_amount( $args['custom_price'] ) : '' ),
+                'item_price'    => wpinv_round_amount($item_price),
+                'custom_price'  => ($args['custom_price'] !== '' ? wpinv_round_amount($args['custom_price']) : ''),
                 'quantity'      => $args['quantity'],
                 'discount'      => $discount,
-                'subtotal'      => wpinv_round_amount( $subtotal ),
-                'tax'           => wpinv_round_amount( $tax ),
-                'price'         => wpinv_round_amount( $total ),
+                'subtotal'      => wpinv_round_amount($subtotal),
+                'tax'           => wpinv_round_amount($tax),
+                'price'         => wpinv_round_amount($total),
                 'vat_rate'      => $tax_rate,
                 'vat_class'     => $tax_class,
                 'meta'          => $args['meta'],
@@ -1746,18 +1746,18 @@ 
             $subtotal = $subtotal - $discount;
         }
         
-        $added_item = end( $this->cart_details );
-        $added_item['action']  = 'add';
+        $added_item = end($this->cart_details);
+        $added_item['action'] = 'add';
         
         $this->pending['items'][] = $added_item;
         
-        $this->increase_subtotal( $subtotal );
-        $this->increase_tax( $tax );
+        $this->increase_subtotal($subtotal);
+        $this->increase_tax($tax);
 
         return true;
     }
     
-    public function remove_item( $item_id, $args = array() ) {
+    public function remove_item($item_id, $args = array()) {
         // Set some defaults
         $defaults = array(
             'quantity'      => 1,
@@ -1765,51 +1765,51 @@ 
             'custom_price'  => '',
             'cart_index'    => false,
         );
-        $args = wp_parse_args( $args, $defaults );
+        $args = wp_parse_args($args, $defaults);
 
         // Bail if this post isn't a item
-        if ( get_post_type( $item_id ) !== 'wpi_item' ) {
+        if (get_post_type($item_id) !== 'wpi_item') {
             return false;
         }
         
-        $this->cart_details = !empty( $this->cart_details ) ? array_values( $this->cart_details ) : $this->cart_details;
+        $this->cart_details = !empty($this->cart_details) ? array_values($this->cart_details) : $this->cart_details;
 
-        foreach ( $this->items as $key => $item ) {
-            if ( !empty($item['id']) && (int)$item_id !== (int)$item['id'] ) {
+        foreach ($this->items as $key => $item) {
+            if (!empty($item['id']) && (int) $item_id !== (int) $item['id']) {
                 continue;
             }
 
-            if ( false !== $args['cart_index'] ) {
-                $cart_index = absint( $args['cart_index'] );
-                $cart_item  = ! empty( $this->cart_details[ $cart_index ] ) ? $this->cart_details[ $cart_index ] : false;
+            if (false !== $args['cart_index']) {
+                $cart_index = absint($args['cart_index']);
+                $cart_item  = !empty($this->cart_details[$cart_index]) ? $this->cart_details[$cart_index] : false;
 
-                if ( ! empty( $cart_item ) ) {
+                if (!empty($cart_item)) {
                     // If the cart index item isn't the same item ID, don't remove it
-                    if ( !empty($cart_item['id']) && $cart_item['id'] != $item['id'] ) {
+                    if (!empty($cart_item['id']) && $cart_item['id'] != $item['id']) {
                         continue;
                     }
                 }
             }
 
-            $item_quantity = $this->items[ $key ]['quantity'];
-            if ( $item_quantity > $args['quantity'] ) {
-                $this->items[ $key ]['quantity'] -= $args['quantity'];
+            $item_quantity = $this->items[$key]['quantity'];
+            if ($item_quantity > $args['quantity']) {
+                $this->items[$key]['quantity'] -= $args['quantity'];
                 break;
             } else {
-                unset( $this->items[ $key ] );
+                unset($this->items[$key]);
                 break;
             }
         }
 
         $found_cart_key = false;
-        if ( false === $args['cart_index'] ) {
-            foreach ( $this->cart_details as $cart_key => $item ) {
-                if ( $item_id != $item['id'] ) {
+        if (false === $args['cart_index']) {
+            foreach ($this->cart_details as $cart_key => $item) {
+                if ($item_id != $item['id']) {
                     continue;
                 }
 
-                if ( false !== $args['item_price'] ) {
-                    if ( isset( $item['item_price'] ) && (float) $args['item_price'] != (float) $item['item_price'] ) {
+                if (false !== $args['item_price']) {
+                    if (isset($item['item_price']) && (float) $args['item_price'] != (float) $item['item_price']) {
                         continue;
                     }
                 }
@@ -1818,13 +1818,13 @@ 
                 break;
             }
         } else {
-            $cart_index = absint( $args['cart_index'] );
+            $cart_index = absint($args['cart_index']);
 
-            if ( ! array_key_exists( $cart_index, $this->cart_details ) ) {
+            if (!array_key_exists($cart_index, $this->cart_details)) {
                 return false; // Invalid cart index passed.
             }
 
-            if ( (int) $this->cart_details[ $cart_index ]['id'] > 0 && (int) $this->cart_details[ $cart_index ]['id'] !== (int) $item_id ) {
+            if ((int) $this->cart_details[$cart_index]['id'] > 0 && (int) $this->cart_details[$cart_index]['id'] !== (int) $item_id) {
                 return false; // We still need the proper Item ID to be sure.
             }
 
@@ -1832,41 +1832,41 @@ 
         }
         
         $cart_item  = $this->cart_details[$found_cart_key];
-        $quantity   = !empty( $cart_item['quantity'] ) ? $cart_item['quantity'] : 1;
+        $quantity   = !empty($cart_item['quantity']) ? $cart_item['quantity'] : 1;
         
-        if ( count( $this->cart_details ) == 1 && ( $quantity - $args['quantity'] ) < 1 ) {
+        if (count($this->cart_details) == 1 && ($quantity - $args['quantity']) < 1) {
             //return false; // Invoice must contain at least one item.
         }
         
-        $discounts  = $this->get_discounts();
+        $discounts = $this->get_discounts();
         
-        if ( $quantity > $args['quantity'] ) {
+        if ($quantity > $args['quantity']) {
             $item_price         = $cart_item['item_price'];
-            $tax_rate           = !empty( $cart_item['vat_rate'] ) ? $cart_item['vat_rate'] : 0;
+            $tax_rate           = !empty($cart_item['vat_rate']) ? $cart_item['vat_rate'] : 0;
             
-            $new_quantity       = max( $quantity - $args['quantity'], 1);
+            $new_quantity       = max($quantity - $args['quantity'], 1);
             $subtotal           = $item_price * $new_quantity;
             
             $args['quantity']   = $new_quantity;
-            $discount           = !empty( $cart_item['discount'] ) ? $cart_item['discount'] : 0;
-            $tax                = $subtotal > 0 && $tax_rate > 0 ? ( ( $subtotal - $discount ) * 0.01 * (float)$tax_rate ) : 0;
+            $discount           = !empty($cart_item['discount']) ? $cart_item['discount'] : 0;
+            $tax                = $subtotal > 0 && $tax_rate > 0 ? (($subtotal - $discount) * 0.01 * (float) $tax_rate) : 0;
             
-            $discount_decrease  = (float)$cart_item['discount'] > 0 && $quantity > 0 ? wpinv_round_amount( ( (float)$cart_item['discount'] / $quantity ) ) : 0;
-            $discount_decrease  = $discount > 0 && $subtotal > 0 && (float)$cart_item['discount'] > $discount ? (float)$cart_item['discount'] - $discount : $discount_decrease; 
-            $tax_decrease       = (float)$cart_item['tax'] > 0 && $quantity > 0 ? wpinv_round_amount( ( (float)$cart_item['tax'] / $quantity ) ) : 0;
-            $tax_decrease       = $tax > 0 && $subtotal > 0 && (float)$cart_item['tax'] > $tax ? (float)$cart_item['tax'] - $tax : $tax_decrease;
+            $discount_decrease  = (float) $cart_item['discount'] > 0 && $quantity > 0 ? wpinv_round_amount(((float) $cart_item['discount'] / $quantity)) : 0;
+            $discount_decrease  = $discount > 0 && $subtotal > 0 && (float) $cart_item['discount'] > $discount ? (float) $cart_item['discount'] - $discount : $discount_decrease; 
+            $tax_decrease       = (float) $cart_item['tax'] > 0 && $quantity > 0 ? wpinv_round_amount(((float) $cart_item['tax'] / $quantity)) : 0;
+            $tax_decrease       = $tax > 0 && $subtotal > 0 && (float) $cart_item['tax'] > $tax ? (float) $cart_item['tax'] - $tax : $tax_decrease;
             
             // The total increase equals the number removed * the item_price
-            $total_decrease     = wpinv_round_amount( $item_price );
+            $total_decrease     = wpinv_round_amount($item_price);
             
-            if ( wpinv_prices_include_tax() ) {
-                $subtotal -= wpinv_round_amount( $tax );
+            if (wpinv_prices_include_tax()) {
+                $subtotal -= wpinv_round_amount($tax);
             }
 
-            $total              = $subtotal - $discount + $tax;
+            $total = $subtotal - $discount + $tax;
 
             // Do not allow totals to go negative
-            if( $total < 0 ) {
+            if ($total < 0) {
                 $total = 0;
             }
             
@@ -1885,16 +1885,16 @@ 
             
             $this->cart_details[$found_cart_key] = $cart_item;
             
-            $remove_item = end( $this->cart_details );
+            $remove_item = end($this->cart_details);
         } else {
             $item_price     = $cart_item['item_price'];
-            $discount       = !empty( $cart_item['discount'] ) ? $cart_item['discount'] : 0;
-            $tax            = !empty( $cart_item['tax'] ) ? $cart_item['tax'] : 0;
+            $discount       = !empty($cart_item['discount']) ? $cart_item['discount'] : 0;
+            $tax            = !empty($cart_item['tax']) ? $cart_item['tax'] : 0;
         
-            $subtotal_decrease  = ( $item_price * $quantity ) - $discount;
+            $subtotal_decrease  = ($item_price * $quantity) - $discount;
             $tax_decrease       = $tax;
 
-            unset( $this->cart_details[$found_cart_key] );
+            unset($this->cart_details[$found_cart_key]);
             
             $remove_item             = $args;
             $remove_item['id']       = $item_id;
@@ -1905,8 +1905,8 @@ 
         $remove_item['action']      = 'remove';
         $this->pending['items'][]   = $remove_item;
                
-        $this->decrease_subtotal( $subtotal_decrease );
-        $this->decrease_tax( $tax_decrease );
+        $this->decrease_subtotal($subtotal_decrease);
+        $this->decrease_tax($tax_decrease);
         
         return true;
     }
@@ -1914,7 +1914,7 @@ 
     public function update_items($temp = false) {
         global $wpinv_euvat, $wpi_current_id, $wpi_item_id, $wpi_nosave;
         
-        if ( !empty( $this->cart_details ) ) {
+        if (!empty($this->cart_details)) {
             $wpi_nosave             = $temp;
             $cart_subtotal          = 0;
             $cart_discount          = 0;
@@ -1924,61 +1924,61 @@ 
             $_POST['wpinv_country'] = $this->country;
             $_POST['wpinv_state']   = $this->state;
             
-            foreach ( $this->cart_details as $key => $item ) {
+            foreach ($this->cart_details as $key => $item) {
                 $item_price = $item['item_price'];
-                $quantity   = wpinv_item_quantities_enabled() && $item['quantity'] > 0 ? absint( $item['quantity'] ) : 1;
-                $amount     = wpinv_round_amount( $item_price * $quantity );
+                $quantity   = wpinv_item_quantities_enabled() && $item['quantity'] > 0 ? absint($item['quantity']) : 1;
+                $amount     = wpinv_round_amount($item_price * $quantity);
                 $subtotal   = $item_price * $quantity;
                 
                 $wpi_current_id         = $this->ID;
                 $wpi_item_id            = $item['id'];
                 
-                $discount   = wpinv_get_cart_item_discount_amount( $item, $this->get_discounts() );
+                $discount   = wpinv_get_cart_item_discount_amount($item, $this->get_discounts());
                 
-                $tax_rate   = wpinv_get_tax_rate( $this->country, $this->state, $wpi_item_id );
-                $tax_class  = $wpinv_euvat->get_item_class( $wpi_item_id );
-                $tax        = $item_price > 0 ? ( ( $subtotal - $discount ) * 0.01 * (float)$tax_rate ) : 0;
+                $tax_rate   = wpinv_get_tax_rate($this->country, $this->state, $wpi_item_id);
+                $tax_class  = $wpinv_euvat->get_item_class($wpi_item_id);
+                $tax        = $item_price > 0 ? (($subtotal - $discount) * 0.01 * (float) $tax_rate) : 0;
 
-                if ( wpinv_prices_include_tax() ) {
-                    $subtotal -= wpinv_round_amount( $tax );
+                if (wpinv_prices_include_tax()) {
+                    $subtotal -= wpinv_round_amount($tax);
                 }
 
-                $total      = $subtotal - $discount + $tax;
+                $total = $subtotal - $discount + $tax;
 
                 // Do not allow totals to go negative
-                if( $total < 0 ) {
+                if ($total < 0) {
                     $total = 0;
                 }
 
                 $cart_details[] = array(
                     'id'          => $item['id'],
                     'name'        => $item['name'],
-                    'item_price'  => wpinv_round_amount( $item_price ),
-                    'custom_price'=> ( isset( $item['custom_price'] ) ? $item['custom_price'] : '' ),
+                    'item_price'  => wpinv_round_amount($item_price),
+                    'custom_price'=> (isset($item['custom_price']) ? $item['custom_price'] : ''),
                     'quantity'    => $quantity,
                     'discount'    => $discount,
-                    'subtotal'    => wpinv_round_amount( $subtotal ),
-                    'tax'         => wpinv_round_amount( $tax ),
-                    'price'       => wpinv_round_amount( $total ),
+                    'subtotal'    => wpinv_round_amount($subtotal),
+                    'tax'         => wpinv_round_amount($tax),
+                    'price'       => wpinv_round_amount($total),
                     'vat_rate'    => $tax_rate,
                     'vat_class'   => $tax_class,
                     'meta'        => isset($item['meta']) ? $item['meta'] : array(),
                     'fees'        => isset($item['fees']) ? $item['fees'] : array(),
                 );
                 
-                $cart_subtotal  += (float)($subtotal - $discount); // TODO
-                $cart_discount  += (float)($discount);
-                $cart_tax       += (float)($tax);
+                $cart_subtotal  += (float) ($subtotal - $discount); // TODO
+                $cart_discount  += (float) ($discount);
+                $cart_tax       += (float) ($tax);
             }
-            if ( $cart_subtotal < 0 ) {
+            if ($cart_subtotal < 0) {
                 $cart_subtotal = 0;
             }
-            if ( $cart_tax < 0 ) {
+            if ($cart_tax < 0) {
                 $cart_tax = 0;
             }
-            $this->subtotal = wpinv_round_amount( $cart_subtotal );
-            $this->tax      = wpinv_round_amount( $cart_tax );
-            $this->discount = wpinv_round_amount( $cart_discount );
+            $this->subtotal = wpinv_round_amount($cart_subtotal);
+            $this->tax      = wpinv_round_amount($cart_tax);
+            $this->discount = wpinv_round_amount($cart_discount);
             
             $this->recalculate_total();
             
@@ -1990,177 +1990,177 @@ 
     
     public function recalculate_totals($temp = false) {        
         $this->update_items($temp);
-        $this->save( true );
+        $this->save(true);
         
         return $this;
     }
     
     public function needs_payment() {
-        $valid_invoice_statuses = apply_filters( 'wpinv_valid_invoice_statuses_for_payment', array( 'wpi-pending' ), $this );
+        $valid_invoice_statuses = apply_filters('wpinv_valid_invoice_statuses_for_payment', array('wpi-pending'), $this);
 
-        if ( $this->has_status( $valid_invoice_statuses ) && ( $this->get_total() > 0 || $this->is_free_trial() || $this->is_free() || $this->is_initial_free() ) ) {
+        if ($this->has_status($valid_invoice_statuses) && ($this->get_total() > 0 || $this->is_free_trial() || $this->is_free() || $this->is_initial_free())) {
             $needs_payment = true;
         } else {
             $needs_payment = false;
         }
 
-        return apply_filters( 'wpinv_needs_payment', $needs_payment, $this, $valid_invoice_statuses );
+        return apply_filters('wpinv_needs_payment', $needs_payment, $this, $valid_invoice_statuses);
     }
     
-    public function get_checkout_payment_url( $with_key = false, $secret = false ) {
+    public function get_checkout_payment_url($with_key = false, $secret = false) {
         $pay_url = wpinv_get_checkout_uri();
 
-        if ( is_ssl() ) {
-            $pay_url = str_replace( 'http:', 'https:', $pay_url );
+        if (is_ssl()) {
+            $pay_url = str_replace('http:', 'https:', $pay_url);
         }
         
         $key = $this->get_key();
 
-        if ( $with_key ) {
-            $pay_url = add_query_arg( 'invoice_key', $key, $pay_url );
+        if ($with_key) {
+            $pay_url = add_query_arg('invoice_key', $key, $pay_url);
         } else {
-            $pay_url = add_query_arg( array( 'wpi_action' => 'pay_for_invoice', 'invoice_key' => $key ), $pay_url );
+            $pay_url = add_query_arg(array('wpi_action' => 'pay_for_invoice', 'invoice_key' => $key), $pay_url);
         }
         
-        if ( $secret ) {
-            $pay_url = add_query_arg( array( '_wpipay' => md5( $this->get_user_id() . '::' . $this->get_email() . '::' . $key ) ), $pay_url );
+        if ($secret) {
+            $pay_url = add_query_arg(array('_wpipay' => md5($this->get_user_id() . '::' . $this->get_email() . '::' . $key)), $pay_url);
         }
 
-        return apply_filters( 'wpinv_get_checkout_payment_url', $pay_url, $this, $with_key, $secret );
+        return apply_filters('wpinv_get_checkout_payment_url', $pay_url, $this, $with_key, $secret);
     }
     
-    public function get_view_url( $with_key = false ) {
-        $invoice_url = get_permalink( $this->ID );
+    public function get_view_url($with_key = false) {
+        $invoice_url = get_permalink($this->ID);
 
-        if ( $with_key ) {
-            $invoice_url = add_query_arg( 'invoice_key', $this->get_key(), $invoice_url );
+        if ($with_key) {
+            $invoice_url = add_query_arg('invoice_key', $this->get_key(), $invoice_url);
         }
 
-        return apply_filters( 'wpinv_get_view_url', $invoice_url, $this, $with_key );
+        return apply_filters('wpinv_get_view_url', $invoice_url, $this, $with_key);
     }
     
-    public function generate_key( $string = '' ) {
-        $auth_key  = defined( 'AUTH_KEY' ) ? AUTH_KEY : '';
-        return strtolower( md5( $string . date( 'Y-m-d H:i:s' ) . $auth_key . uniqid( 'wpinv', true ) ) );  // Unique key
+    public function generate_key($string = '') {
+        $auth_key = defined('AUTH_KEY') ? AUTH_KEY : '';
+        return strtolower(md5($string . date('Y-m-d H:i:s') . $auth_key . uniqid('wpinv', true))); // Unique key
     }
     
     public function is_recurring() {
-        if ( empty( $this->cart_details ) ) {
+        if (empty($this->cart_details)) {
             return false;
         }
         
         $has_subscription = false;
-        foreach( $this->cart_details as $cart_item ) {
-            if ( !empty( $cart_item['id'] ) && wpinv_is_recurring_item( $cart_item['id'] )  ) {
+        foreach ($this->cart_details as $cart_item) {
+            if (!empty($cart_item['id']) && wpinv_is_recurring_item($cart_item['id'])) {
                 $has_subscription = true;
                 break;
             }
         }
         
-        if ( count( $this->cart_details ) > 1 ) {
+        if (count($this->cart_details) > 1) {
             $has_subscription = false;
         }
 
-        return apply_filters( 'wpinv_invoice_has_recurring_item', $has_subscription, $this->cart_details );
+        return apply_filters('wpinv_invoice_has_recurring_item', $has_subscription, $this->cart_details);
     }
     
     public function is_free_trial() {
         $is_free_trial = false;
         
-        if ( $this->is_parent() && $item = $this->get_recurring( true ) ) {
-            if ( !empty( $item ) && $item->has_free_trial() ) {
+        if ($this->is_parent() && $item = $this->get_recurring(true)) {
+            if (!empty($item) && $item->has_free_trial()) {
                 $is_free_trial = true;
             }
         }
 
-        return apply_filters( 'wpinv_invoice_is_free_trial', $is_free_trial, $this->cart_details );
+        return apply_filters('wpinv_invoice_is_free_trial', $is_free_trial, $this->cart_details);
     }
     
     public function is_initial_free() {
         $is_initial_free = false;
         
-        if ( ! ( (float)wpinv_round_amount( $this->get_total() ) > 0 ) && $this->is_parent() && $this->is_recurring() && ! $this->is_free_trial() && ! $this->is_free() ) {
+        if (!((float) wpinv_round_amount($this->get_total()) > 0) && $this->is_parent() && $this->is_recurring() && !$this->is_free_trial() && !$this->is_free()) {
             $is_initial_free = true;
         }
 
-        return apply_filters( 'wpinv_invoice_is_initial_free', $is_initial_free, $this->cart_details );
+        return apply_filters('wpinv_invoice_is_initial_free', $is_initial_free, $this->cart_details);
     }
     
-    public function get_recurring( $object = false ) {
+    public function get_recurring($object = false) {
         $item = NULL;
         
-        if ( empty( $this->cart_details ) ) {
+        if (empty($this->cart_details)) {
             return $item;
         }
         
-        foreach( $this->cart_details as $cart_item ) {
-            if ( !empty( $cart_item['id'] ) && wpinv_is_recurring_item( $cart_item['id'] )  ) {
+        foreach ($this->cart_details as $cart_item) {
+            if (!empty($cart_item['id']) && wpinv_is_recurring_item($cart_item['id'])) {
                 $item = $cart_item['id'];
                 break;
             }
         }
         
-        if ( $object ) {
-            $item = $item ? new WPInv_Item( $item ) : NULL;
+        if ($object) {
+            $item = $item ? new WPInv_Item($item) : NULL;
             
-            apply_filters( 'wpinv_invoice_get_recurring_item', $item, $this );
+            apply_filters('wpinv_invoice_get_recurring_item', $item, $this);
         }
 
-        return apply_filters( 'wpinv_invoice_get_recurring_item_id', $item, $this );
+        return apply_filters('wpinv_invoice_get_recurring_item_id', $item, $this);
     }
     
     public function get_subscription_name() {
-        $item = $this->get_recurring( true );
+        $item = $this->get_recurring(true);
         
-        if ( empty( $item ) ) {
+        if (empty($item)) {
             return NULL;
         }
         
-        if ( !($name = $item->get_name()) ) {
+        if (!($name = $item->get_name())) {
             $name = $item->post_name;
         }
 
-        return apply_filters( 'wpinv_invoice_get_subscription_name', $name, $this );
+        return apply_filters('wpinv_invoice_get_subscription_name', $name, $this);
     }
     
     public function get_subscription_id() {
-        $subscription_id = $this->get_meta( '_wpinv_subscr_profile_id', true );
+        $subscription_id = $this->get_meta('_wpinv_subscr_profile_id', true);
         
-        if ( empty( $subscription_id ) && !empty( $this->parent_invoice ) ) {
-            $parent_invoice = wpinv_get_invoice( $this->parent_invoice );
+        if (empty($subscription_id) && !empty($this->parent_invoice)) {
+            $parent_invoice = wpinv_get_invoice($this->parent_invoice);
             
-            $subscription_id = $parent_invoice->get_meta( '_wpinv_subscr_profile_id', true );
+            $subscription_id = $parent_invoice->get_meta('_wpinv_subscr_profile_id', true);
         }
         
         return $subscription_id;
     }
     
     public function is_parent() {
-        $is_parent = empty( $this->parent_invoice ) ? true : false;
+        $is_parent = empty($this->parent_invoice) ? true : false;
 
-        return apply_filters( 'wpinv_invoice_is_parent', $is_parent, $this );
+        return apply_filters('wpinv_invoice_is_parent', $is_parent, $this);
     }
     
     public function is_renewal() {
         $is_renewal = $this->parent_invoice && $this->parent_invoice != $this->ID ? true : false;
 
-        return apply_filters( 'wpinv_invoice_is_renewal', $is_renewal, $this );
+        return apply_filters('wpinv_invoice_is_renewal', $is_renewal, $this);
     }
     
     public function get_parent_payment() {
         $parent_payment = NULL;
         
-        if ( $this->is_renewal() ) {
-            $parent_payment = wpinv_get_invoice( $this->parent_invoice );
+        if ($this->is_renewal()) {
+            $parent_payment = wpinv_get_invoice($this->parent_invoice);
         }
         
         return $parent_payment;
     }
     
     public function is_paid() {
-        $is_paid = $this->has_status( array( 'publish', 'wpi-processing', 'wpi-renewal' ) );
+        $is_paid = $this->has_status(array('publish', 'wpi-processing', 'wpi-renewal'));
 
-        return apply_filters( 'wpinv_invoice_is_paid', $is_paid, $this );
+        return apply_filters('wpinv_invoice_is_paid', $is_paid, $this);
     }
 
     /**
@@ -2173,23 +2173,23 @@ 
     }
     
     public function is_refunded() {
-        $is_refunded = $this->has_status( array( 'wpi-refunded' ) );
+        $is_refunded = $this->has_status(array('wpi-refunded'));
 
-        return apply_filters( 'wpinv_invoice_is_refunded', $is_refunded, $this );
+        return apply_filters('wpinv_invoice_is_refunded', $is_refunded, $this);
     }
     
     public function is_free() {
         $is_free = false;
         
-        if ( !( (float)wpinv_round_amount( $this->get_total() ) > 0 ) ) {
-            if ( $this->is_parent() && $this->is_recurring() ) {
-                $is_free = (float)wpinv_round_amount( $this->get_recurring_details( 'total' ) ) > 0 ? false : true;
+        if (!((float) wpinv_round_amount($this->get_total()) > 0)) {
+            if ($this->is_parent() && $this->is_recurring()) {
+                $is_free = (float) wpinv_round_amount($this->get_recurring_details('total')) > 0 ? false : true;
             } else {
                 $is_free = true;
             }
         }
         
-        return apply_filters( 'wpinv_invoice_is_free', $is_free, $this );
+        return apply_filters('wpinv_invoice_is_free', $is_free, $this);
     }
     
     public function has_vat() {
@@ -2197,41 +2197,41 @@ 
         
         $requires_vat = false;
         
-        if ( $this->country ) {
+        if ($this->country) {
             $wpi_country        = $this->country;
             
-            $requires_vat       = $wpinv_euvat->requires_vat( $requires_vat, $this->get_user_id(), $wpinv_euvat->invoice_has_digital_rule( $this ) );
+            $requires_vat       = $wpinv_euvat->requires_vat($requires_vat, $this->get_user_id(), $wpinv_euvat->invoice_has_digital_rule($this));
         }
         
-        return apply_filters( 'wpinv_invoice_has_vat', $requires_vat, $this );
+        return apply_filters('wpinv_invoice_has_vat', $requires_vat, $this);
     }
     
     public function refresh_item_ids() {
         $item_ids = array();
         
-        if ( !empty( $this->cart_details ) ) {
-            foreach ( $this->cart_details as $key => $item ) {
-                if ( !empty( $item['id'] ) ) {
+        if (!empty($this->cart_details)) {
+            foreach ($this->cart_details as $key => $item) {
+                if (!empty($item['id'])) {
                     $item_ids[] = $item['id'];
                 }
             }
         }
         
-        $item_ids = !empty( $item_ids ) ? implode( ',', array_unique( $item_ids ) ) : '';
+        $item_ids = !empty($item_ids) ? implode(',', array_unique($item_ids)) : '';
         
-        update_post_meta( $this->ID, '_wpinv_item_ids', $item_ids );
+        update_post_meta($this->ID, '_wpinv_item_ids', $item_ids);
     }
     
-    public function get_invoice_quote_type( $post_id ) {
-        if ( empty( $post_id ) ) {
+    public function get_invoice_quote_type($post_id) {
+        if (empty($post_id)) {
             return '';
         }
 
-        $type = get_post_type( $post_id );
+        $type = get_post_type($post_id);
 
-        if ( 'wpi_invoice' === $type ) {
+        if ('wpi_invoice' === $type) {
             $post_type = __('Invoice', 'invoicing');
-        } else{
+        } else {
             $post_type = __('Quote', 'invoicing');
         }
 

includes/admin/admin-meta-boxes.php

Indentation +1 added lines, -1 removed lines

@@ -29,7 +29,7 @@
     add_meta_box( 'wpinv-items', __( 'Invoice Items', 'invoicing' ), 'WPInv_Meta_Box_Items::output', 'wpi_invoice', 'normal', 'high' );
     add_meta_box( 'wpinv-notes', __( 'Invoice Notes', 'invoicing' ), 'WPInv_Meta_Box_Notes::output', 'wpi_invoice', 'normal', 'high' );
 
-	remove_meta_box('wpseo_meta', 'wpi_invoice', 'normal');
+    remove_meta_box('wpseo_meta', 'wpi_invoice', 'normal');
 }
 add_action( 'add_meta_boxes', 'wpinv_add_meta_boxes', 30, 2 );
 

Spacing +149 added lines, -149 removed lines

@@ -1,67 +1,67 @@ 
 <?php
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
-    exit( 'Do NOT access this file directly: ' . basename( __FILE__ ) );
+if (!defined('WPINC')) {
+    exit('Do NOT access this file directly: ' . basename(__FILE__));
 }
 
-function wpinv_add_meta_boxes( $post_type, $post ) {
+function wpinv_add_meta_boxes($post_type, $post) {
     global $wpi_mb_invoice;
-    if ( $post_type == 'wpi_invoice' && !empty( $post->ID ) ) {
-        $wpi_mb_invoice = wpinv_get_invoice( $post->ID );
+    if ($post_type == 'wpi_invoice' && !empty($post->ID)) {
+        $wpi_mb_invoice = wpinv_get_invoice($post->ID);
     }
     
-    if ( !empty( $wpi_mb_invoice ) && !$wpi_mb_invoice->has_status( array( 'draft', 'auto-draft' ) ) ) {
-        add_meta_box( 'wpinv-mb-resend-invoice', __( 'Resend Invoice', 'invoicing' ), 'WPInv_Meta_Box_Details::resend_invoice', 'wpi_invoice', 'side', 'high' );
+    if (!empty($wpi_mb_invoice) && !$wpi_mb_invoice->has_status(array('draft', 'auto-draft'))) {
+        add_meta_box('wpinv-mb-resend-invoice', __('Resend Invoice', 'invoicing'), 'WPInv_Meta_Box_Details::resend_invoice', 'wpi_invoice', 'side', 'high');
     }
     
-    if ( !empty( $wpi_mb_invoice ) && $wpi_mb_invoice->is_recurring() && $wpi_mb_invoice->is_parent() ) {
-        add_meta_box( 'wpinv-mb-subscriptions', __( 'Subscriptions', 'invoicing' ), 'WPInv_Meta_Box_Details::subscriptions', 'wpi_invoice', 'side', 'high' );
+    if (!empty($wpi_mb_invoice) && $wpi_mb_invoice->is_recurring() && $wpi_mb_invoice->is_parent()) {
+        add_meta_box('wpinv-mb-subscriptions', __('Subscriptions', 'invoicing'), 'WPInv_Meta_Box_Details::subscriptions', 'wpi_invoice', 'side', 'high');
     }
     
-    if ( wpinv_is_subscription_payment( $wpi_mb_invoice ) ) {
-        add_meta_box( 'wpinv-mb-renewals', __( 'Renewal Payment', 'invoicing' ), 'WPInv_Meta_Box_Details::renewals', 'wpi_invoice', 'side', 'high' );
+    if (wpinv_is_subscription_payment($wpi_mb_invoice)) {
+        add_meta_box('wpinv-mb-renewals', __('Renewal Payment', 'invoicing'), 'WPInv_Meta_Box_Details::renewals', 'wpi_invoice', 'side', 'high');
     }
     
-    add_meta_box( 'wpinv-details', __( 'Invoice Details', 'invoicing' ), 'WPInv_Meta_Box_Details::output', 'wpi_invoice', 'side', 'default' );
-    add_meta_box( 'wpinv-payment-meta', __( 'Payment Meta', 'invoicing' ), 'WPInv_Meta_Box_Details::payment_meta', 'wpi_invoice', 'side', 'default' );
+    add_meta_box('wpinv-details', __('Invoice Details', 'invoicing'), 'WPInv_Meta_Box_Details::output', 'wpi_invoice', 'side', 'default');
+    add_meta_box('wpinv-payment-meta', __('Payment Meta', 'invoicing'), 'WPInv_Meta_Box_Details::payment_meta', 'wpi_invoice', 'side', 'default');
    
-    add_meta_box( 'wpinv-address', __( 'Billing Details', 'invoicing' ), 'WPInv_Meta_Box_Billing_Details::output', 'wpi_invoice', 'normal', 'high' );
-    add_meta_box( 'wpinv-items', __( 'Invoice Items', 'invoicing' ), 'WPInv_Meta_Box_Items::output', 'wpi_invoice', 'normal', 'high' );
-    add_meta_box( 'wpinv-notes', __( 'Invoice Notes', 'invoicing' ), 'WPInv_Meta_Box_Notes::output', 'wpi_invoice', 'normal', 'high' );
+    add_meta_box('wpinv-address', __('Billing Details', 'invoicing'), 'WPInv_Meta_Box_Billing_Details::output', 'wpi_invoice', 'normal', 'high');
+    add_meta_box('wpinv-items', __('Invoice Items', 'invoicing'), 'WPInv_Meta_Box_Items::output', 'wpi_invoice', 'normal', 'high');
+    add_meta_box('wpinv-notes', __('Invoice Notes', 'invoicing'), 'WPInv_Meta_Box_Notes::output', 'wpi_invoice', 'normal', 'high');
 
 	remove_meta_box('wpseo_meta', 'wpi_invoice', 'normal');
 }
-add_action( 'add_meta_boxes', 'wpinv_add_meta_boxes', 30, 2 );
+add_action('add_meta_boxes', 'wpinv_add_meta_boxes', 30, 2);
 
-function wpinv_save_meta_boxes( $post_id, $post, $update = false ) {
-    remove_action( 'save_post', __FUNCTION__ );
+function wpinv_save_meta_boxes($post_id, $post, $update = false) {
+    remove_action('save_post', __FUNCTION__);
     
     // $post_id and $post are required
-    if ( empty( $post_id ) || empty( $post ) ) {
+    if (empty($post_id) || empty($post)) {
         return;
     }
         
-    if ( !current_user_can( 'edit_post', $post_id ) || empty( $post->post_type ) ) {
+    if (!current_user_can('edit_post', $post_id) || empty($post->post_type)) {
         return;
     }
     
     // Dont' save meta boxes for revisions or autosaves
-    if ( defined( 'DOING_AUTOSAVE' ) || is_int( wp_is_post_revision( $post ) ) || is_int( wp_is_post_autosave( $post ) ) ) {
+    if (defined('DOING_AUTOSAVE') || is_int(wp_is_post_revision($post)) || is_int(wp_is_post_autosave($post))) {
         return;
     }
         
-    if ( $post->post_type == 'wpi_invoice' or $post->post_type == 'wpi_quote' ) {
-        if ( ( defined( 'DOING_AJAX') && DOING_AJAX ) || isset( $_REQUEST['bulk_edit'] ) ) {
+    if ($post->post_type == 'wpi_invoice' or $post->post_type == 'wpi_quote') {
+        if ((defined('DOING_AJAX') && DOING_AJAX) || isset($_REQUEST['bulk_edit'])) {
             return;
         }
     
-        if ( isset( $_POST['wpinv_save_invoice'] ) && wp_verify_nonce( $_POST['wpinv_save_invoice'], 'wpinv_save_invoice' ) ) {
-            WPInv_Meta_Box_Items::save( $post_id, $_POST, $post );
+        if (isset($_POST['wpinv_save_invoice']) && wp_verify_nonce($_POST['wpinv_save_invoice'], 'wpinv_save_invoice')) {
+            WPInv_Meta_Box_Items::save($post_id, $_POST, $post);
         }
-    } else if ( $post->post_type == 'wpi_item' ) {
+    } else if ($post->post_type == 'wpi_item') {
         // verify nonce
-        if ( isset( $_POST['wpinv_vat_meta_box_nonce'] ) && wp_verify_nonce( $_POST['wpinv_vat_meta_box_nonce'], 'wpinv_item_meta_box_save' ) ) {
-            $fields                                 = array();
+        if (isset($_POST['wpinv_vat_meta_box_nonce']) && wp_verify_nonce($_POST['wpinv_vat_meta_box_nonce'], 'wpinv_item_meta_box_save')) {
+            $fields = array();
             $fields['_wpinv_price']              = 'wpinv_item_price';
             $fields['_wpinv_vat_class']          = 'wpinv_vat_class';
             $fields['_wpinv_vat_rule']           = 'wpinv_vat_rules';
@@ -76,96 +76,96 @@ 
             $fields['_wpinv_dynamic_pricing']    = 'wpinv_name_your_price';
             $fields['_minimum_price']            = 'wpinv_minimum_price';
             
-            if ( !isset( $_POST['wpinv_is_recurring'] ) ) {
+            if (!isset($_POST['wpinv_is_recurring'])) {
                 $_POST['wpinv_is_recurring'] = 0;
             }
 
-            if ( !isset( $_POST['wpinv_name_your_price'] ) ) {
+            if (!isset($_POST['wpinv_name_your_price'])) {
                 $_POST['wpinv_name_your_price'] = 0;
             }
             
-            if ( !isset( $_POST['wpinv_free_trial'] ) || empty( $_POST['wpinv_is_recurring'] ) ) {
+            if (!isset($_POST['wpinv_free_trial']) || empty($_POST['wpinv_is_recurring'])) {
                 $_POST['wpinv_free_trial'] = 0;
             }
             
-            foreach ( $fields as $field => $name ) {
-                if ( isset( $_POST[ $name ] ) ) {
-                    $allowed = apply_filters( 'wpinv_item_allowed_save_meta_value', true, $field, $post_id );
+            foreach ($fields as $field => $name) {
+                if (isset($_POST[$name])) {
+                    $allowed = apply_filters('wpinv_item_allowed_save_meta_value', true, $field, $post_id);
 
-                    if ( !$allowed ) {
+                    if (!$allowed) {
                         continue;
                     }
 
-                    if ( $field == '_wpinv_price' ) {
-                        $value = wpinv_sanitize_amount( $_POST[ $name ] );
+                    if ($field == '_wpinv_price') {
+                        $value = wpinv_sanitize_amount($_POST[$name]);
                     } else {
-                        $value = is_string( $_POST[ $name ] ) ? sanitize_text_field( $_POST[ $name ] ) : $_POST[ $name ];
+                        $value = is_string($_POST[$name]) ? sanitize_text_field($_POST[$name]) : $_POST[$name];
                     }
                     
-                    $value = apply_filters( 'wpinv_item_metabox_save_' . $field, $value, $name );
-                    update_post_meta( $post_id, $field, $value );
+                    $value = apply_filters('wpinv_item_metabox_save_' . $field, $value, $name);
+                    update_post_meta($post_id, $field, $value);
                 }
             }
             
-            if ( !get_post_meta( $post_id, '_wpinv_custom_id', true ) ) {
-                update_post_meta( $post_id, '_wpinv_custom_id', $post_id );
+            if (!get_post_meta($post_id, '_wpinv_custom_id', true)) {
+                update_post_meta($post_id, '_wpinv_custom_id', $post_id);
             }
         }
     }
 }
-add_action( 'save_post', 'wpinv_save_meta_boxes', 10, 3 );
+add_action('save_post', 'wpinv_save_meta_boxes', 10, 3);
 
 function wpinv_register_item_meta_boxes() {    
     global $wpinv_euvat;
     
-    add_meta_box( 'wpinv_field_prices', __( 'Item Price', 'invoicing' ), 'WPInv_Meta_Box_Items::prices', 'wpi_item', 'normal', 'high' );
+    add_meta_box('wpinv_field_prices', __('Item Price', 'invoicing'), 'WPInv_Meta_Box_Items::prices', 'wpi_item', 'normal', 'high');
 
-    if ( $wpinv_euvat->allow_vat_rules() ) {
-        add_meta_box( 'wpinv_field_vat_rules', __( 'VAT rules type to use', 'invoicing' ), 'WPInv_Meta_Box_Items::vat_rules', 'wpi_item', 'normal', 'high' );
+    if ($wpinv_euvat->allow_vat_rules()) {
+        add_meta_box('wpinv_field_vat_rules', __('VAT rules type to use', 'invoicing'), 'WPInv_Meta_Box_Items::vat_rules', 'wpi_item', 'normal', 'high');
     }
     
-    if ( $wpinv_euvat->allow_vat_classes() ) {
-        add_meta_box( 'wpinv_field_vat_classes', __( 'VAT rates class to use', 'invoicing' ), 'WPInv_Meta_Box_Items::vat_classes', 'wpi_item', 'normal', 'high' );
+    if ($wpinv_euvat->allow_vat_classes()) {
+        add_meta_box('wpinv_field_vat_classes', __('VAT rates class to use', 'invoicing'), 'WPInv_Meta_Box_Items::vat_classes', 'wpi_item', 'normal', 'high');
     }
     
-    add_meta_box( 'wpinv_field_item_info', __( 'Item info', 'invoicing' ), 'WPInv_Meta_Box_Items::item_info', 'wpi_item', 'side', 'core' );
-    add_meta_box( 'wpinv_field_meta_values', __( 'Item Meta Values', 'invoicing' ), 'WPInv_Meta_Box_Items::meta_values', 'wpi_item', 'side', 'core' );
+    add_meta_box('wpinv_field_item_info', __('Item info', 'invoicing'), 'WPInv_Meta_Box_Items::item_info', 'wpi_item', 'side', 'core');
+    add_meta_box('wpinv_field_meta_values', __('Item Meta Values', 'invoicing'), 'WPInv_Meta_Box_Items::meta_values', 'wpi_item', 'side', 'core');
 }
 
 function wpinv_register_discount_meta_boxes() {
-    add_meta_box( 'wpinv_discount_fields', __( 'Discount Details', 'invoicing' ), 'wpinv_discount_metabox_details', 'wpi_discount', 'normal', 'high' );
+    add_meta_box('wpinv_discount_fields', __('Discount Details', 'invoicing'), 'wpinv_discount_metabox_details', 'wpi_discount', 'normal', 'high');
 }
 
-function wpinv_discount_metabox_details( $post ) {
+function wpinv_discount_metabox_details($post) {
     $discount_id    = $post->ID;
-    $discount       = wpinv_get_discount( $discount_id );
+    $discount       = wpinv_get_discount($discount_id);
     
-    $type               = wpinv_get_discount_type( $discount_id );
-    $item_reqs          = wpinv_get_discount_item_reqs( $discount_id );
-    $excluded_items     = wpinv_get_discount_excluded_items( $discount_id );
-    $min_total          = wpinv_get_discount_min_total( $discount_id );
-    $max_total          = wpinv_get_discount_max_total( $discount_id );
-    $max_uses           = wpinv_get_discount_max_uses( $discount_id );
-    $single_use         = wpinv_discount_is_single_use( $discount_id );
-    $recurring          = (bool)wpinv_discount_is_recurring( $discount_id );
-    $start_date         = wpinv_get_discount_start_date( $discount_id );
-    $expiration_date    = wpinv_get_discount_expiration( $discount_id );
+    $type               = wpinv_get_discount_type($discount_id);
+    $item_reqs          = wpinv_get_discount_item_reqs($discount_id);
+    $excluded_items     = wpinv_get_discount_excluded_items($discount_id);
+    $min_total          = wpinv_get_discount_min_total($discount_id);
+    $max_total          = wpinv_get_discount_max_total($discount_id);
+    $max_uses           = wpinv_get_discount_max_uses($discount_id);
+    $single_use         = wpinv_discount_is_single_use($discount_id);
+    $recurring          = (bool) wpinv_discount_is_recurring($discount_id);
+    $start_date         = wpinv_get_discount_start_date($discount_id);
+    $expiration_date    = wpinv_get_discount_expiration($discount_id);
     
-    if ( ! empty( $start_date ) && strpos( $start_date, '0000' ) === false ) {
-        $start_time         = strtotime( $start_date );
-        $start_h            = date_i18n( 'H', $start_time );
-        $start_m            = date_i18n( 'i', $start_time );
-        $start_date         = date_i18n( 'Y-m-d', $start_time );
+    if (!empty($start_date) && strpos($start_date, '0000') === false) {
+        $start_time         = strtotime($start_date);
+        $start_h            = date_i18n('H', $start_time);
+        $start_m            = date_i18n('i', $start_time);
+        $start_date         = date_i18n('Y-m-d', $start_time);
     } else {
         $start_h            = '00';
         $start_m            = '00';
     }
 
-    if ( ! empty( $expiration_date ) && strpos( $expiration_date, '0000' ) === false ) {
-        $expiration_time    = strtotime( $expiration_date );
-        $expiration_h       = date_i18n( 'H', $expiration_time );
-        $expiration_m       = date_i18n( 'i', $expiration_time );
-        $expiration_date    = date_i18n( 'Y-m-d', $expiration_time );
+    if (!empty($expiration_date) && strpos($expiration_date, '0000') === false) {
+        $expiration_time    = strtotime($expiration_date);
+        $expiration_h       = date_i18n('H', $expiration_time);
+        $expiration_m       = date_i18n('i', $expiration_time);
+        $expiration_date    = date_i18n('Y-m-d', $expiration_time);
     } else {
         $expiration_h       = '23';
         $expiration_m       = '59';
@@ -175,207 +175,207 @@ 
     $max_total          = $max_total > 0 ? $max_total : '';
     $max_uses           = $max_uses > 0 ? $max_uses : '';
 ?>
-<?php do_action( 'wpinv_discount_form_top', $post ); ?>
-<?php wp_nonce_field( 'wpinv_discount_metabox_nonce', 'wpinv_discount_metabox_nonce' ); ;?>
+<?php do_action('wpinv_discount_form_top', $post); ?>
+<?php wp_nonce_field('wpinv_discount_metabox_nonce', 'wpinv_discount_metabox_nonce'); ;?>
 <table class="form-table wpi-form-table">
     <tbody>
-        <?php do_action( 'wpinv_discount_form_first', $post ); ?>
-        <?php do_action( 'wpinv_discount_form_before_code', $post ); ?>
+        <?php do_action('wpinv_discount_form_first', $post); ?>
+        <?php do_action('wpinv_discount_form_before_code', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_code"><?php _e( 'Discount Code', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_code"><?php _e('Discount Code', 'invoicing'); ?></label>
             </th>
             <td>
-                <input type="text" name="code" id="wpinv_discount_code" class="medium-text" value="<?php echo esc_attr( wpinv_get_discount_code( $discount_id ) ); ?>" required>
-                <p class="description"><?php _e( 'Enter a code for this discount, such as 10OFF', 'invoicing' ); ?></p>
+                <input type="text" name="code" id="wpinv_discount_code" class="medium-text" value="<?php echo esc_attr(wpinv_get_discount_code($discount_id)); ?>" required>
+                <p class="description"><?php _e('Enter a code for this discount, such as 10OFF', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_type', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_type', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_type"><?php _e( 'Discount Type', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_type"><?php _e('Discount Type', 'invoicing'); ?></label>
             </th>
             <td>
                 <select id="wpinv_discount_type" name="type" class="medium-text wpi_select2">
-                    <?php foreach ( wpinv_get_discount_types() as $value => $label ) { ?>
-                    <option value="<?php echo $value ;?>" <?php selected( $type, $value ); ?>><?php echo $label; ?></option>
+                    <?php foreach (wpinv_get_discount_types() as $value => $label) { ?>
+                    <option value="<?php echo $value; ?>" <?php selected($type, $value); ?>><?php echo $label; ?></option>
                     <?php } ?>
                 </select>
-                <p class="description"><?php _e( 'The kind of discount to apply for this discount.', 'invoicing' ); ?></p>
+                <p class="description"><?php _e('The kind of discount to apply for this discount.', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_amount', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_amount', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_amount"><?php _e( 'Amount', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_amount"><?php _e('Amount', 'invoicing'); ?></label>
             </th>
             <td>
-                <input type="text" name="amount" id="wpinv_discount_amount" class="wpi-field-price wpi-price" value="<?php echo esc_attr( wpinv_get_discount_amount( $discount_id ) ); ?>" required> <font class="wpi-discount-p">%</font><font class="wpi-discount-f" style="display:none;"><?php echo wpinv_currency_symbol() ;?></font>
-                <p style="display:none;" class="description"><?php _e( 'Enter the discount amount in USD', 'invoicing' ); ?></p>
-                <p class="description"><?php _e( 'Enter the discount value. Ex: 10', 'invoicing' ); ?></p>
+                <input type="text" name="amount" id="wpinv_discount_amount" class="wpi-field-price wpi-price" value="<?php echo esc_attr(wpinv_get_discount_amount($discount_id)); ?>" required> <font class="wpi-discount-p">%</font><font class="wpi-discount-f" style="display:none;"><?php echo wpinv_currency_symbol(); ?></font>
+                <p style="display:none;" class="description"><?php _e('Enter the discount amount in USD', 'invoicing'); ?></p>
+                <p class="description"><?php _e('Enter the discount value. Ex: 10', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_items', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_items', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_items"><?php _e( 'Items', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_items"><?php _e('Items', 'invoicing'); ?></label>
             </th>
             <td>
-                <p><?php echo wpinv_item_dropdown( array(
+                <p><?php echo wpinv_item_dropdown(array(
                         'name'              => 'items[]',
                         'id'                => 'items',
                         'selected'          => $item_reqs,
                         'multiple'          => true,
                         'class'             => 'medium-text wpi_select2',
-                        'placeholder'       => __( 'Select one or more Items', 'invoicing' ),
+                        'placeholder'       => __('Select one or more Items', 'invoicing'),
                         'show_recurring'    => true,
-                    ) ); ?>
+                    )); ?>
                 </p>
-                <p class="description"><?php _e( 'Items which need to be in the cart to use this discount or, for "Item Discounts", which items are discounted. If left blank, this discount can be used on any item.', 'invoicing' ); ?></p>
+                <p class="description"><?php _e('Items which need to be in the cart to use this discount or, for "Item Discounts", which items are discounted. If left blank, this discount can be used on any item.', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_excluded_items', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_excluded_items', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_excluded_items"><?php _e( 'Excluded Items', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_excluded_items"><?php _e('Excluded Items', 'invoicing'); ?></label>
             </th>
             <td>
-                <p><?php echo wpinv_item_dropdown( array(
+                <p><?php echo wpinv_item_dropdown(array(
                         'name'              => 'excluded_items[]',
                         'id'                => 'excluded_items',
                         'selected'          => $excluded_items,
                         'multiple'          => true,
                         'class'             => 'medium-text wpi_select2',
-                        'placeholder'       => __( 'Select one or more Items', 'invoicing' ),
+                        'placeholder'       => __('Select one or more Items', 'invoicing'),
                         'show_recurring'    => true,
-                    ) ); ?>
+                    )); ?>
                 </p>
-                <p class="description"><?php _e( 'Items which are NOT allowed to use this discount.', 'invoicing' ); ?></p>
+                <p class="description"><?php _e('Items which are NOT allowed to use this discount.', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_start', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_start', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_start"><?php _e( 'Start Date', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_start"><?php _e('Start Date', 'invoicing'); ?></label>
             </th>
             <td>
-                <input type="text" class="w120 wpiDatepicker" id="wpinv_discount_start" data-dateFormat="yy-mm-dd" name="start" value="<?php echo esc_attr( $start_date ); ?>"> @ <select id="wpinv_discount_start_h" name="start_h">
-                    <?php for ( $i = 0; $i <= 23; $i++ ) { $value = str_pad( $i, 2, '0', STR_PAD_LEFT ); ?>
-                    <option value="<?php echo $value;?>" <?php selected( $value, $start_h ); ?>><?php echo $value;?></option>
+                <input type="text" class="w120 wpiDatepicker" id="wpinv_discount_start" data-dateFormat="yy-mm-dd" name="start" value="<?php echo esc_attr($start_date); ?>"> @ <select id="wpinv_discount_start_h" name="start_h">
+                    <?php for ($i = 0; $i <= 23; $i++) { $value = str_pad($i, 2, '0', STR_PAD_LEFT); ?>
+                    <option value="<?php echo $value; ?>" <?php selected($value, $start_h); ?>><?php echo $value; ?></option>
                     <?php } ?>
                 </select> : <select id="wpinv_discount_start_m" name="start_m">
-                    <?php for ( $i = 0; $i <= 59; $i++ ) { $value = str_pad( $i, 2, '0', STR_PAD_LEFT ); ?>
-                    <option value="<?php echo $value;?>" <?php selected( $value, $start_m ); ?>><?php echo $value;?></option>
+                    <?php for ($i = 0; $i <= 59; $i++) { $value = str_pad($i, 2, '0', STR_PAD_LEFT); ?>
+                    <option value="<?php echo $value; ?>" <?php selected($value, $start_m); ?>><?php echo $value; ?></option>
                     <?php } ?>
                 </select>
-                <p class="description"><?php _e( 'Enter the start date for this discount code in the format of yyyy-mm-dd. For no start date, leave blank. If entered, the discount can only be used after or on this date.', 'invoicing' ); ?></p>
+                <p class="description"><?php _e('Enter the start date for this discount code in the format of yyyy-mm-dd. For no start date, leave blank. If entered, the discount can only be used after or on this date.', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_expiration', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_expiration', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_expiration"><?php _e( 'Expiration Date', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_expiration"><?php _e('Expiration Date', 'invoicing'); ?></label>
             </th>
             <td>
-                <input type="text" class="w120 wpiDatepicker" id="wpinv_discount_expiration" data-dateFormat="yy-mm-dd" name="expiration" value="<?php echo esc_attr( $expiration_date ); ?>"> @ <select id="wpinv_discount_expiration_h" name="expiration_h">
-                    <?php for ( $i = 0; $i <= 23; $i++ ) { $value = str_pad( $i, 2, '0', STR_PAD_LEFT ); ?>
-                    <option value="<?php echo $value;?>" <?php selected( $value, $expiration_h ); ?>><?php echo $value;?></option>
+                <input type="text" class="w120 wpiDatepicker" id="wpinv_discount_expiration" data-dateFormat="yy-mm-dd" name="expiration" value="<?php echo esc_attr($expiration_date); ?>"> @ <select id="wpinv_discount_expiration_h" name="expiration_h">
+                    <?php for ($i = 0; $i <= 23; $i++) { $value = str_pad($i, 2, '0', STR_PAD_LEFT); ?>
+                    <option value="<?php echo $value; ?>" <?php selected($value, $expiration_h); ?>><?php echo $value; ?></option>
                     <?php } ?>
                 </select> : <select id="wpinv_discount_expiration_m" name="expiration_m">
-                    <?php for ( $i = 0; $i <= 59; $i++ ) { $value = str_pad( $i, 2, '0', STR_PAD_LEFT ); ?>
-                    <option value="<?php echo $value;?>" <?php selected( $value, $expiration_m ); ?>><?php echo $value;?></option>
+                    <?php for ($i = 0; $i <= 59; $i++) { $value = str_pad($i, 2, '0', STR_PAD_LEFT); ?>
+                    <option value="<?php echo $value; ?>" <?php selected($value, $expiration_m); ?>><?php echo $value; ?></option>
                     <?php } ?>
                 </select>
-                <p class="description"><?php _e( 'Enter the expiration date for this discount code in the format of yyyy-mm-dd. Leave blank for no expiration.', 'invoicing' ); ?></p>
+                <p class="description"><?php _e('Enter the expiration date for this discount code in the format of yyyy-mm-dd. Leave blank for no expiration.', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_min_total', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_min_total', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_min_total"><?php _e( 'Minimum Amount', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_min_total"><?php _e('Minimum Amount', 'invoicing'); ?></label>
             </th>
             <td>
                 <input type="text" name="min_total" id="wpinv_discount_min_total" class="wpi-field-price wpi-price" value="<?php echo $min_total; ?>">
-                <p class="description"><?php _e( 'This allows you to set the minimum amount (subtotal, including taxes) allowed when using the discount.', 'invoicing' ); ?></p>
+                <p class="description"><?php _e('This allows you to set the minimum amount (subtotal, including taxes) allowed when using the discount.', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_max_total', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_max_total', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_max_total"><?php _e( 'Maximum Amount', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_max_total"><?php _e('Maximum Amount', 'invoicing'); ?></label>
             </th>
             <td>
                 <input type="text" name="max_total" id="wpinv_discount_max_total" class="wpi-field-price wpi-price" value="<?php echo $max_total; ?>">
-                <p class="description"><?php _e( 'This allows you to set the maximum amount (subtotal, including taxes) allowed when using the discount.', 'invoicing' ); ?></p>
+                <p class="description"><?php _e('This allows you to set the maximum amount (subtotal, including taxes) allowed when using the discount.', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_recurring', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_recurring', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_recurring"><?php _e( 'For recurring apply to', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_recurring"><?php _e('For recurring apply to', 'invoicing'); ?></label>
             </th>
             <td>
                 <select id="wpinv_discount_recurring" name="recurring" class="medium-text wpi_select2">
-                    <option value="0" <?php selected( false, $recurring ); ?>><?php _e( 'First payment only', 'invoicing' ); ?></option>
-                    <option value="1" <?php selected( true, $recurring ); ?>><?php _e( 'All payments', 'invoicing' ); ?></option>
+                    <option value="0" <?php selected(false, $recurring); ?>><?php _e('First payment only', 'invoicing'); ?></option>
+                    <option value="1" <?php selected(true, $recurring); ?>><?php _e('All payments', 'invoicing'); ?></option>
                 </select>
-                <p class="description"><?php _e( '<b>All payments:</b> Apply this discount to all recurring payments of the recurring invoice. <br><b>First payment only:</b> Apply this discount to only first payment of the recurring invoice.', 'invoicing' ); ?></p>
+                <p class="description"><?php _e('<b>All payments:</b> Apply this discount to all recurring payments of the recurring invoice. <br><b>First payment only:</b> Apply this discount to only first payment of the recurring invoice.', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_max_uses', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_max_uses', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_max_uses"><?php _e( 'Max Uses', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_max_uses"><?php _e('Max Uses', 'invoicing'); ?></label>
             </th>
             <td>
                 <input type="number" min="0" step="1" id="wpinv_discount_max_uses" name="max_uses" class="medium-text" value="<?php echo $max_uses; ?>">
-                <p class="description"><?php _e( 'The maximum number of times this discount can be used. Leave blank for unlimited.', 'invoicing' ); ?></p>
+                <p class="description"><?php _e('The maximum number of times this discount can be used. Leave blank for unlimited.', 'invoicing'); ?></p>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_before_single_use', $post ); ?>
+        <?php do_action('wpinv_discount_form_before_single_use', $post); ?>
         <tr>
             <th valign="top" scope="row">
-                <label for="wpinv_discount_single_use"><?php _e( 'Use Once Per User', 'invoicing' ); ?></label>
+                <label for="wpinv_discount_single_use"><?php _e('Use Once Per User', 'invoicing'); ?></label>
             </th>
             <td>
-                <input type="checkbox" value="1" name="single_use" id="wpinv_discount_single_use" <?php checked( true, $single_use ); ?>>
-                <span class="description"><?php _e( 'Limit this discount to a single use per user?', 'invoicing' ); ?></span>
+                <input type="checkbox" value="1" name="single_use" id="wpinv_discount_single_use" <?php checked(true, $single_use); ?>>
+                <span class="description"><?php _e('Limit this discount to a single use per user?', 'invoicing'); ?></span>
             </td>
         </tr>
-        <?php do_action( 'wpinv_discount_form_last', $post ); ?>
+        <?php do_action('wpinv_discount_form_last', $post); ?>
     </tbody>
 </table>
-<?php do_action( 'wpinv_discount_form_bottom', $post ); ?>
+<?php do_action('wpinv_discount_form_bottom', $post); ?>
     <?php
 }
 
-function wpinv_discount_metabox_save( $post_id, $post, $update = false ) {
-    $post_type = !empty( $post ) ? $post->post_type : '';
+function wpinv_discount_metabox_save($post_id, $post, $update = false) {
+    $post_type = !empty($post) ? $post->post_type : '';
     
-    if ( $post_type != 'wpi_discount' ) {
+    if ($post_type != 'wpi_discount') {
         return;
     }
     
-    if ( !isset( $_POST['wpinv_discount_metabox_nonce'] ) || ( isset( $_POST['wpinv_discount_metabox_nonce'] ) && !wp_verify_nonce( $_POST['wpinv_discount_metabox_nonce'], 'wpinv_discount_metabox_nonce' ) ) ) {
+    if (!isset($_POST['wpinv_discount_metabox_nonce']) || (isset($_POST['wpinv_discount_metabox_nonce']) && !wp_verify_nonce($_POST['wpinv_discount_metabox_nonce'], 'wpinv_discount_metabox_nonce'))) {
         return;
     }
     
-    if ( ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) || ( defined( 'DOING_AJAX') && DOING_AJAX ) || isset( $_REQUEST['bulk_edit'] ) ) {
+    if ((defined('DOING_AUTOSAVE') && DOING_AUTOSAVE) || (defined('DOING_AJAX') && DOING_AJAX) || isset($_REQUEST['bulk_edit'])) {
         return;
     }
     
-    if ( !current_user_can( wpinv_get_capability(), $post_id ) ) {
+    if (!current_user_can(wpinv_get_capability(), $post_id)) {
         return;
     }
     
-    if ( !empty( $_POST['start'] ) && isset( $_POST['start_h'] ) && isset( $_POST['start_m'] ) && $_POST['start_h'] !== '' && $_POST['start_m'] !== '' ) {
+    if (!empty($_POST['start']) && isset($_POST['start_h']) && isset($_POST['start_m']) && $_POST['start_h'] !== '' && $_POST['start_m'] !== '') {
         $_POST['start'] = $_POST['start'] . ' ' . $_POST['start_h'] . ':' . $_POST['start_m'];
     }
 
-    if ( !empty( $_POST['expiration'] ) && isset( $_POST['expiration_h'] ) && isset( $_POST['expiration_m'] ) ) {
+    if (!empty($_POST['expiration']) && isset($_POST['expiration_h']) && isset($_POST['expiration_m'])) {
         $_POST['expiration'] = $_POST['expiration'] . ' ' . $_POST['expiration_h'] . ':' . $_POST['expiration_m'];
     }
     
-    return /** @scrutinizer ignore-call */ wpinv_store_discount( $post_id, $_POST, $post, $update );
+    return /** @scrutinizer ignore-call */ wpinv_store_discount($post_id, $_POST, $post, $update);
 }
-add_action( 'save_post', 'wpinv_discount_metabox_save', 10, 3 );
\ No newline at end of file
+add_action('save_post', 'wpinv_discount_metabox_save', 10, 3);
\ No newline at end of file

includes/class-wpinv-session-handler.php

Indentation +276 added lines, -276 removed lines

@@ -12,124 +12,124 @@ 
  */
 class WPInv_Session_Handler extends WPInv_Session {
 
-	/**
-	 * Cookie name used for the session.
-	 *
-	 * @var string cookie name
-	 */
-	protected $_cookie;
-
-	/**
-	 * Stores session expiry.
-	 *
-	 * @var int session due to expire timestamp
-	 */
-	protected $_session_expiring;
-
-	/**
-	 * Stores session due to expire timestamp.
-	 *
-	 * @var string session expiration timestamp
-	 */
-	protected $_session_expiration;
-
-	/**
-	 * True when the cookie exists.
-	 *
-	 * @var bool Based on whether a cookie exists.
-	 */
-	protected $_has_cookie = false;
-
-	/**
-	 * Table name for session data.
-	 *
-	 * @var string Custom session table name
-	 */
-	protected $_table;
-
-	/**
-	 * Constructor for the session class.
-	 */
-	public function __construct() {
-
-	    $this->_cookie = apply_filters( 'wpinv_cookie', 'wpinv_session_' . COOKIEHASH );
+    /**
+     * Cookie name used for the session.
+     *
+     * @var string cookie name
+     */
+    protected $_cookie;
+
+    /**
+     * Stores session expiry.
+     *
+     * @var int session due to expire timestamp
+     */
+    protected $_session_expiring;
+
+    /**
+     * Stores session due to expire timestamp.
+     *
+     * @var string session expiration timestamp
+     */
+    protected $_session_expiration;
+
+    /**
+     * True when the cookie exists.
+     *
+     * @var bool Based on whether a cookie exists.
+     */
+    protected $_has_cookie = false;
+
+    /**
+     * Table name for session data.
+     *
+     * @var string Custom session table name
+     */
+    protected $_table;
+
+    /**
+     * Constructor for the session class.
+     */
+    public function __construct() {
+
+        $this->_cookie = apply_filters( 'wpinv_cookie', 'wpinv_session_' . COOKIEHASH );
         add_action( 'init', array( $this, 'init' ), -1 );
-		add_action( 'wp_logout', array( $this, 'destroy_session' ) );
-		add_action( 'wp', array( $this, 'set_customer_session_cookie' ), 10 );
-		add_action( 'shutdown', array( $this, 'save_data' ), 20 );
-	}
-
-	/**
-	 * Init hooks and session data.
-	 *
-	 * @since 3.3.0
-	 */
-	public function init() {
-		$this->init_session_cookie();
-
-		if ( ! is_user_logged_in() ) {
-			add_filter( 'nonce_user_logged_out', array( $this, 'nonce_user_logged_out' ) );
-		}
-	}
-
-	/**
-	 * Setup cookie and customer ID.
-	 *
-	 * @since 3.6.0
-	 */
-	public function init_session_cookie() {
-		$cookie = $this->get_session_cookie();
-
-		if ( $cookie ) {
-			$this->_customer_id        = $cookie[0];
-			$this->_session_expiration = $cookie[1];
-			$this->_session_expiring   = $cookie[2];
-			$this->_has_cookie         = true;
-			$this->_data               = $this->get_session_data();
-
-			// If the user logs in, update session.
-			if ( is_user_logged_in() && get_current_user_id() != $this->_customer_id ) {
-				$this->_customer_id = get_current_user_id();
-				$this->_dirty       = true;
-				$this->save_data();
-				$this->set_customer_session_cookie( true );
-			}
-
-			// Update session if its close to expiring.
-			if ( time() > $this->_session_expiring ) {
-				$this->set_session_expiration();
-				$this->update_session_timestamp( $this->_customer_id, $this->_session_expiration );
-			}
-		} else {
-			$this->set_session_expiration();
-			$this->_customer_id = $this->generate_customer_id();
-			$this->_data        = $this->get_session_data();
-		}
-	}
-
-	/**
-	 * Sets the session cookie on-demand (usually after adding an item to the cart).
-	 *
-	 * Since the cookie name (as of 2.1) is prepended with wp, cache systems like batcache will not cache pages when set.
-	 *
-	 * Warning: Cookies will only be set if this is called before the headers are sent.
-	 *
-	 * @param bool $set Should the session cookie be set.
-	 */
-	public function set_customer_session_cookie( $set ) {
-		if ( $set ) {
-			$to_hash           = $this->_customer_id . '|' . $this->_session_expiration;
-			$cookie_hash       = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
-			$cookie_value      = $this->_customer_id . '||' . $this->_session_expiration . '||' . $this->_session_expiring . '||' . $cookie_hash;
-			$this->_has_cookie = true;
-
-			if ( ! isset( $_COOKIE[ $this->_cookie ] ) || $_COOKIE[ $this->_cookie ] !== $cookie_value ) {
-				$this->setcookie( $this->_cookie, $cookie_value, $this->_session_expiration, $this->use_secure_cookie(), true );
-			}
-		}
-	}
-
-	public function setcookie($name, $value, $expire = 0, $secure = false, $httponly = false){
+        add_action( 'wp_logout', array( $this, 'destroy_session' ) );
+        add_action( 'wp', array( $this, 'set_customer_session_cookie' ), 10 );
+        add_action( 'shutdown', array( $this, 'save_data' ), 20 );
+    }
+
+    /**
+     * Init hooks and session data.
+     *
+     * @since 3.3.0
+     */
+    public function init() {
+        $this->init_session_cookie();
+
+        if ( ! is_user_logged_in() ) {
+            add_filter( 'nonce_user_logged_out', array( $this, 'nonce_user_logged_out' ) );
+        }
+    }
+
+    /**
+     * Setup cookie and customer ID.
+     *
+     * @since 3.6.0
+     */
+    public function init_session_cookie() {
+        $cookie = $this->get_session_cookie();
+
+        if ( $cookie ) {
+            $this->_customer_id        = $cookie[0];
+            $this->_session_expiration = $cookie[1];
+            $this->_session_expiring   = $cookie[2];
+            $this->_has_cookie         = true;
+            $this->_data               = $this->get_session_data();
+
+            // If the user logs in, update session.
+            if ( is_user_logged_in() && get_current_user_id() != $this->_customer_id ) {
+                $this->_customer_id = get_current_user_id();
+                $this->_dirty       = true;
+                $this->save_data();
+                $this->set_customer_session_cookie( true );
+            }
+
+            // Update session if its close to expiring.
+            if ( time() > $this->_session_expiring ) {
+                $this->set_session_expiration();
+                $this->update_session_timestamp( $this->_customer_id, $this->_session_expiration );
+            }
+        } else {
+            $this->set_session_expiration();
+            $this->_customer_id = $this->generate_customer_id();
+            $this->_data        = $this->get_session_data();
+        }
+    }
+
+    /**
+     * Sets the session cookie on-demand (usually after adding an item to the cart).
+     *
+     * Since the cookie name (as of 2.1) is prepended with wp, cache systems like batcache will not cache pages when set.
+     *
+     * Warning: Cookies will only be set if this is called before the headers are sent.
+     *
+     * @param bool $set Should the session cookie be set.
+     */
+    public function set_customer_session_cookie( $set ) {
+        if ( $set ) {
+            $to_hash           = $this->_customer_id . '|' . $this->_session_expiration;
+            $cookie_hash       = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
+            $cookie_value      = $this->_customer_id . '||' . $this->_session_expiration . '||' . $this->_session_expiring . '||' . $cookie_hash;
+            $this->_has_cookie = true;
+
+            if ( ! isset( $_COOKIE[ $this->_cookie ] ) || $_COOKIE[ $this->_cookie ] !== $cookie_value ) {
+                $this->setcookie( $this->_cookie, $cookie_value, $this->_session_expiration, $this->use_secure_cookie(), true );
+            }
+        }
+    }
+
+    public function setcookie($name, $value, $expire = 0, $secure = false, $httponly = false){
         if ( ! headers_sent() ) {
             setcookie( $name, $value, $expire, COOKIEPATH ? COOKIEPATH : '/', COOKIE_DOMAIN, $secure, apply_filters( 'wpinv_cookie_httponly', $httponly, $name, $value, $expire, $secure ) );
         } elseif ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
@@ -138,96 +138,96 @@ 
         }
     }
 
-	/**
-	 * Should the session cookie be secure?
-	 *
-	 * @since 3.6.0
-	 * @return bool
-	 */
-	protected function use_secure_cookie() {
+    /**
+     * Should the session cookie be secure?
+     *
+     * @since 3.6.0
+     * @return bool
+     */
+    protected function use_secure_cookie() {
         $is_https = false !== strstr( get_option( 'home' ), 'https:' );
-		return apply_filters( 'wpinv_session_use_secure_cookie', $is_https && is_ssl() );
-	}
-
-	/**
-	 * Return true if the current user has an active session, i.e. a cookie to retrieve values.
-	 *
-	 * @return bool
-	 */
-	public function has_session() {
-		return isset( $_COOKIE[ $this->_cookie ] ) || $this->_has_cookie || is_user_logged_in(); // @codingStandardsIgnoreLine.
-	}
-
-	/**
-	 * Set session expiration.
-	 */
-	public function set_session_expiration() {
-		$this->_session_expiring   = time() + intval( apply_filters( 'wpinv_session_expiring', 60 * 60 * 47 ) ); // 47 Hours.
-		$this->_session_expiration = time() + intval( apply_filters( 'wpinv_session_expiration', 60 * 60 * 48 ) ); // 48 Hours.
-	}
-
-	/**
-	 * Generate a unique customer ID for guests, or return user ID if logged in.
-	 *
-	 * Uses Portable PHP password hashing framework to generate a unique cryptographically strong ID.
-	 *
-	 * @return string
-	 */
-	public function generate_customer_id() {
-		$customer_id = '';
-
-		if ( is_user_logged_in() ) {
-			$customer_id = get_current_user_id();
-		}
-
-		if ( empty( $customer_id ) ) {
+        return apply_filters( 'wpinv_session_use_secure_cookie', $is_https && is_ssl() );
+    }
+
+    /**
+     * Return true if the current user has an active session, i.e. a cookie to retrieve values.
+     *
+     * @return bool
+     */
+    public function has_session() {
+        return isset( $_COOKIE[ $this->_cookie ] ) || $this->_has_cookie || is_user_logged_in(); // @codingStandardsIgnoreLine.
+    }
+
+    /**
+     * Set session expiration.
+     */
+    public function set_session_expiration() {
+        $this->_session_expiring   = time() + intval( apply_filters( 'wpinv_session_expiring', 60 * 60 * 47 ) ); // 47 Hours.
+        $this->_session_expiration = time() + intval( apply_filters( 'wpinv_session_expiration', 60 * 60 * 48 ) ); // 48 Hours.
+    }
+
+    /**
+     * Generate a unique customer ID for guests, or return user ID if logged in.
+     *
+     * Uses Portable PHP password hashing framework to generate a unique cryptographically strong ID.
+     *
+     * @return string
+     */
+    public function generate_customer_id() {
+        $customer_id = '';
+
+        if ( is_user_logged_in() ) {
+            $customer_id = get_current_user_id();
+        }
+
+        if ( empty( $customer_id ) ) {
             $customer_id = wp_create_nonce('wpinv-session-customer-id');
-		}
-
-		return $customer_id;
-	}
-
-	/**
-	 * Get the session cookie, if set. Otherwise return false.
-	 *
-	 * Session cookies without a customer ID are invalid.
-	 *
-	 * @return bool|array
-	 */
-	public function get_session_cookie() {
-		$cookie_value = isset( $_COOKIE[ $this->_cookie ] ) ? wp_unslash( $_COOKIE[ $this->_cookie ] ) : false; // @codingStandardsIgnoreLine.
-
-		if ( empty( $cookie_value ) || ! is_string( $cookie_value ) ) {
-			return false;
-		}
-
-		list( $customer_id, $session_expiration, $session_expiring, $cookie_hash ) = explode( '||', $cookie_value );
-
-		if ( empty( $customer_id ) ) {
-			return false;
-		}
-
-		// Validate hash.
-		$to_hash = $customer_id . '|' . $session_expiration;
-		$hash    = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
-
-		if ( empty( $cookie_hash ) || ! hash_equals( $hash, $cookie_hash ) ) {
-			return false;
-		}
-
-		return array( $customer_id, $session_expiration, $session_expiring, $cookie_hash );
-	}
-
-	/**
-	 * Get session data.
-	 *
-	 * @return array
-	 */
-	public function get_session_data() {
-		return $this->has_session() ? (array) $this->get_session( $this->_customer_id ) : array();
-	}
-
-	public function generate_key($customer_id){
+        }
+
+        return $customer_id;
+    }
+
+    /**
+     * Get the session cookie, if set. Otherwise return false.
+     *
+     * Session cookies without a customer ID are invalid.
+     *
+     * @return bool|array
+     */
+    public function get_session_cookie() {
+        $cookie_value = isset( $_COOKIE[ $this->_cookie ] ) ? wp_unslash( $_COOKIE[ $this->_cookie ] ) : false; // @codingStandardsIgnoreLine.
+
+        if ( empty( $cookie_value ) || ! is_string( $cookie_value ) ) {
+            return false;
+        }
+
+        list( $customer_id, $session_expiration, $session_expiring, $cookie_hash ) = explode( '||', $cookie_value );
+
+        if ( empty( $customer_id ) ) {
+            return false;
+        }
+
+        // Validate hash.
+        $to_hash = $customer_id . '|' . $session_expiration;
+        $hash    = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
+
+        if ( empty( $cookie_hash ) || ! hash_equals( $hash, $cookie_hash ) ) {
+            return false;
+        }
+
+        return array( $customer_id, $session_expiration, $session_expiring, $cookie_hash );
+    }
+
+    /**
+     * Get session data.
+     *
+     * @return array
+     */
+    public function get_session_data() {
+        return $this->has_session() ? (array) $this->get_session( $this->_customer_id ) : array();
+    }
+
+    public function generate_key($customer_id){
         if(!$customer_id){
             return;
         }
@@ -235,62 +235,62 @@ 
         return 'wpi_trans_'.$customer_id;
     }
 
-	/**
-	 * Save data.
-	 */
-	public function save_data() {
-		// Dirty if something changed - prevents saving nothing new.
-		if ( $this->_dirty && $this->has_session() ) {
+    /**
+     * Save data.
+     */
+    public function save_data() {
+        // Dirty if something changed - prevents saving nothing new.
+        if ( $this->_dirty && $this->has_session() ) {
 
             set_transient( $this->generate_key($this->_customer_id), $this->_data, $this->_session_expiration);
 
-			$this->_dirty = false;
-		}
-	}
-
-	/**
-	 * Destroy all session data.
-	 */
-	public function destroy_session() {
-		$this->delete_session( $this->_customer_id );
-		$this->forget_session();
-	}
-
-	/**
-	 * Forget all session data without destroying it.
-	 */
-	public function forget_session() {
-		$this->setcookie( $this->_cookie, '', time() - YEAR_IN_SECONDS, $this->use_secure_cookie(), true );
-
-		wpinv_empty_cart();
-
-		$this->_data        = array();
-		$this->_dirty       = false;
-		$this->_customer_id = $this->generate_customer_id();
-	}
-
-	/**
-	 * When a user is logged out, ensure they have a unique nonce by using the customer/session ID.
-	 *
-	 * @param int $uid User ID.
-	 * @return string
-	 */
-	public function nonce_user_logged_out( $uid ) {
-		return $this->has_session() && $this->_customer_id ? $this->_customer_id : $uid;
-	}
-
-	/**
-	 * Returns the session.
-	 *
-	 * @param string $customer_id Customer ID.
-	 * @param mixed  $default Default session value.
-	 * @return string|array
-	 */
-	public function get_session( $customer_id, $default = false ) {
-
-		if ( defined( 'WP_SETUP_CONFIG' ) ) {
-			return array();
-		}
+            $this->_dirty = false;
+        }
+    }
+
+    /**
+     * Destroy all session data.
+     */
+    public function destroy_session() {
+        $this->delete_session( $this->_customer_id );
+        $this->forget_session();
+    }
+
+    /**
+     * Forget all session data without destroying it.
+     */
+    public function forget_session() {
+        $this->setcookie( $this->_cookie, '', time() - YEAR_IN_SECONDS, $this->use_secure_cookie(), true );
+
+        wpinv_empty_cart();
+
+        $this->_data        = array();
+        $this->_dirty       = false;
+        $this->_customer_id = $this->generate_customer_id();
+    }
+
+    /**
+     * When a user is logged out, ensure they have a unique nonce by using the customer/session ID.
+     *
+     * @param int $uid User ID.
+     * @return string
+     */
+    public function nonce_user_logged_out( $uid ) {
+        return $this->has_session() && $this->_customer_id ? $this->_customer_id : $uid;
+    }
+
+    /**
+     * Returns the session.
+     *
+     * @param string $customer_id Customer ID.
+     * @param mixed  $default Default session value.
+     * @return string|array
+     */
+    public function get_session( $customer_id, $default = false ) {
+
+        if ( defined( 'WP_SETUP_CONFIG' ) ) {
+            return array();
+        }
 
         if ( !is_user_logged_in() ) {
             if(!wp_verify_nonce( $customer_id, 'wpinv-session-customer-id' )){
@@ -305,32 +305,32 @@ 
             $value = $default;
         }
 
-		return maybe_unserialize( $value );
-	}
+        return maybe_unserialize( $value );
+    }
 
-	/**
-	 * Delete the session from the cache and database.
-	 *
-	 * @param int $customer_id Customer ID.
-	 */
-	public function delete_session( $customer_id ) {
+    /**
+     * Delete the session from the cache and database.
+     *
+     * @param int $customer_id Customer ID.
+     */
+    public function delete_session( $customer_id ) {
 
         $key = $this->generate_key($customer_id);
 
-		delete_transient($key);
-	}
+        delete_transient($key);
+    }
 
-	/**
-	 * Update the session expiry timestamp.
-	 *
-	 * @param string $customer_id Customer ID.
-	 * @param int    $timestamp Timestamp to expire the cookie.
-	 */
-	public function update_session_timestamp( $customer_id, $timestamp ) {
+    /**
+     * Update the session expiry timestamp.
+     *
+     * @param string $customer_id Customer ID.
+     * @param int    $timestamp Timestamp to expire the cookie.
+     */
+    public function update_session_timestamp( $customer_id, $timestamp ) {
 
         set_transient( $this->generate_key($customer_id), maybe_serialize( $this->_data ), $timestamp);
 
-	}
+    }
 }
 
 global $wpi_session;

Spacing +56 added lines, -56 removed lines

@@ -5,7 +5,7 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Session handler class.
@@ -52,11 +52,11 @@ 
 	 */
 	public function __construct() {
 
-	    $this->_cookie = apply_filters( 'wpinv_cookie', 'wpinv_session_' . COOKIEHASH );
-        add_action( 'init', array( $this, 'init' ), -1 );
-		add_action( 'wp_logout', array( $this, 'destroy_session' ) );
-		add_action( 'wp', array( $this, 'set_customer_session_cookie' ), 10 );
-		add_action( 'shutdown', array( $this, 'save_data' ), 20 );
+	    $this->_cookie = apply_filters('wpinv_cookie', 'wpinv_session_' . COOKIEHASH);
+        add_action('init', array($this, 'init'), -1);
+		add_action('wp_logout', array($this, 'destroy_session'));
+		add_action('wp', array($this, 'set_customer_session_cookie'), 10);
+		add_action('shutdown', array($this, 'save_data'), 20);
 	}
 
 	/**
@@ -67,8 +67,8 @@ 
 	public function init() {
 		$this->init_session_cookie();
 
-		if ( ! is_user_logged_in() ) {
-			add_filter( 'nonce_user_logged_out', array( $this, 'nonce_user_logged_out' ) );
+		if (!is_user_logged_in()) {
+			add_filter('nonce_user_logged_out', array($this, 'nonce_user_logged_out'));
 		}
 	}
 
@@ -80,7 +80,7 @@ 
 	public function init_session_cookie() {
 		$cookie = $this->get_session_cookie();
 
-		if ( $cookie ) {
+		if ($cookie) {
 			$this->_customer_id        = $cookie[0];
 			$this->_session_expiration = $cookie[1];
 			$this->_session_expiring   = $cookie[2];
@@ -88,17 +88,17 @@ 
 			$this->_data               = $this->get_session_data();
 
 			// If the user logs in, update session.
-			if ( is_user_logged_in() && get_current_user_id() != $this->_customer_id ) {
+			if (is_user_logged_in() && get_current_user_id() != $this->_customer_id) {
 				$this->_customer_id = get_current_user_id();
 				$this->_dirty       = true;
 				$this->save_data();
-				$this->set_customer_session_cookie( true );
+				$this->set_customer_session_cookie(true);
 			}
 
 			// Update session if its close to expiring.
-			if ( time() > $this->_session_expiring ) {
+			if (time() > $this->_session_expiring) {
 				$this->set_session_expiration();
-				$this->update_session_timestamp( $this->_customer_id, $this->_session_expiration );
+				$this->update_session_timestamp($this->_customer_id, $this->_session_expiration);
 			}
 		} else {
 			$this->set_session_expiration();
@@ -116,25 +116,25 @@ 
 	 *
 	 * @param bool $set Should the session cookie be set.
 	 */
-	public function set_customer_session_cookie( $set ) {
-		if ( $set ) {
+	public function set_customer_session_cookie($set) {
+		if ($set) {
 			$to_hash           = $this->_customer_id . '|' . $this->_session_expiration;
-			$cookie_hash       = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
+			$cookie_hash       = hash_hmac('md5', $to_hash, wp_hash($to_hash));
 			$cookie_value      = $this->_customer_id . '||' . $this->_session_expiration . '||' . $this->_session_expiring . '||' . $cookie_hash;
 			$this->_has_cookie = true;
 
-			if ( ! isset( $_COOKIE[ $this->_cookie ] ) || $_COOKIE[ $this->_cookie ] !== $cookie_value ) {
-				$this->setcookie( $this->_cookie, $cookie_value, $this->_session_expiration, $this->use_secure_cookie(), true );
+			if (!isset($_COOKIE[$this->_cookie]) || $_COOKIE[$this->_cookie] !== $cookie_value) {
+				$this->setcookie($this->_cookie, $cookie_value, $this->_session_expiration, $this->use_secure_cookie(), true);
 			}
 		}
 	}
 
-	public function setcookie($name, $value, $expire = 0, $secure = false, $httponly = false){
-        if ( ! headers_sent() ) {
-            setcookie( $name, $value, $expire, COOKIEPATH ? COOKIEPATH : '/', COOKIE_DOMAIN, $secure, apply_filters( 'wpinv_cookie_httponly', $httponly, $name, $value, $expire, $secure ) );
-        } elseif ( defined( 'WP_DEBUG' ) && WP_DEBUG ) {
-            headers_sent( $file, $line );
-            trigger_error( "{$name} cookie cannot be set - headers already sent by {$file} on line {$line}", E_USER_NOTICE ); // @codingStandardsIgnoreLine
+	public function setcookie($name, $value, $expire = 0, $secure = false, $httponly = false) {
+        if (!headers_sent()) {
+            setcookie($name, $value, $expire, COOKIEPATH ? COOKIEPATH : '/', COOKIE_DOMAIN, $secure, apply_filters('wpinv_cookie_httponly', $httponly, $name, $value, $expire, $secure));
+        } elseif (defined('WP_DEBUG') && WP_DEBUG) {
+            headers_sent($file, $line);
+            trigger_error("{$name} cookie cannot be set - headers already sent by {$file} on line {$line}", E_USER_NOTICE); // @codingStandardsIgnoreLine
         }
     }
 
@@ -145,8 +145,8 @@ 
 	 * @return bool
 	 */
 	protected function use_secure_cookie() {
-        $is_https = false !== strstr( get_option( 'home' ), 'https:' );
-		return apply_filters( 'wpinv_session_use_secure_cookie', $is_https && is_ssl() );
+        $is_https = false !== strstr(get_option('home'), 'https:');
+		return apply_filters('wpinv_session_use_secure_cookie', $is_https && is_ssl());
 	}
 
 	/**
@@ -155,15 +155,15 @@ 
 	 * @return bool
 	 */
 	public function has_session() {
-		return isset( $_COOKIE[ $this->_cookie ] ) || $this->_has_cookie || is_user_logged_in(); // @codingStandardsIgnoreLine.
+		return isset($_COOKIE[$this->_cookie]) || $this->_has_cookie || is_user_logged_in(); // @codingStandardsIgnoreLine.
 	}
 
 	/**
 	 * Set session expiration.
 	 */
 	public function set_session_expiration() {
-		$this->_session_expiring   = time() + intval( apply_filters( 'wpinv_session_expiring', 60 * 60 * 47 ) ); // 47 Hours.
-		$this->_session_expiration = time() + intval( apply_filters( 'wpinv_session_expiration', 60 * 60 * 48 ) ); // 48 Hours.
+		$this->_session_expiring   = time() + intval(apply_filters('wpinv_session_expiring', 60 * 60 * 47)); // 47 Hours.
+		$this->_session_expiration = time() + intval(apply_filters('wpinv_session_expiration', 60 * 60 * 48)); // 48 Hours.
 	}
 
 	/**
@@ -176,11 +176,11 @@ 
 	public function generate_customer_id() {
 		$customer_id = '';
 
-		if ( is_user_logged_in() ) {
+		if (is_user_logged_in()) {
 			$customer_id = get_current_user_id();
 		}
 
-		if ( empty( $customer_id ) ) {
+		if (empty($customer_id)) {
             $customer_id = wp_create_nonce('wpinv-session-customer-id');
 		}
 
@@ -195,27 +195,27 @@ 
 	 * @return bool|array
 	 */
 	public function get_session_cookie() {
-		$cookie_value = isset( $_COOKIE[ $this->_cookie ] ) ? wp_unslash( $_COOKIE[ $this->_cookie ] ) : false; // @codingStandardsIgnoreLine.
+		$cookie_value = isset($_COOKIE[$this->_cookie]) ? wp_unslash($_COOKIE[$this->_cookie]) : false; // @codingStandardsIgnoreLine.
 
-		if ( empty( $cookie_value ) || ! is_string( $cookie_value ) ) {
+		if (empty($cookie_value) || !is_string($cookie_value)) {
 			return false;
 		}
 
-		list( $customer_id, $session_expiration, $session_expiring, $cookie_hash ) = explode( '||', $cookie_value );
+		list($customer_id, $session_expiration, $session_expiring, $cookie_hash) = explode('||', $cookie_value);
 
-		if ( empty( $customer_id ) ) {
+		if (empty($customer_id)) {
 			return false;
 		}
 
 		// Validate hash.
 		$to_hash = $customer_id . '|' . $session_expiration;
-		$hash    = hash_hmac( 'md5', $to_hash, wp_hash( $to_hash ) );
+		$hash    = hash_hmac('md5', $to_hash, wp_hash($to_hash));
 
-		if ( empty( $cookie_hash ) || ! hash_equals( $hash, $cookie_hash ) ) {
+		if (empty($cookie_hash) || !hash_equals($hash, $cookie_hash)) {
 			return false;
 		}
 
-		return array( $customer_id, $session_expiration, $session_expiring, $cookie_hash );
+		return array($customer_id, $session_expiration, $session_expiring, $cookie_hash);
 	}
 
 	/**
@@ -224,15 +224,15 @@ 
 	 * @return array
 	 */
 	public function get_session_data() {
-		return $this->has_session() ? (array) $this->get_session( $this->_customer_id ) : array();
+		return $this->has_session() ? (array) $this->get_session($this->_customer_id) : array();
 	}
 
-	public function generate_key($customer_id){
-        if(!$customer_id){
+	public function generate_key($customer_id) {
+        if (!$customer_id) {
             return;
         }
 
-        return 'wpi_trans_'.$customer_id;
+        return 'wpi_trans_' . $customer_id;
     }
 
 	/**
@@ -240,9 +240,9 @@ 
 	 */
 	public function save_data() {
 		// Dirty if something changed - prevents saving nothing new.
-		if ( $this->_dirty && $this->has_session() ) {
+		if ($this->_dirty && $this->has_session()) {
 
-            set_transient( $this->generate_key($this->_customer_id), $this->_data, $this->_session_expiration);
+            set_transient($this->generate_key($this->_customer_id), $this->_data, $this->_session_expiration);
 
 			$this->_dirty = false;
 		}
@@ -252,7 +252,7 @@ 
 	 * Destroy all session data.
 	 */
 	public function destroy_session() {
-		$this->delete_session( $this->_customer_id );
+		$this->delete_session($this->_customer_id);
 		$this->forget_session();
 	}
 
@@ -260,7 +260,7 @@ 
 	 * Forget all session data without destroying it.
 	 */
 	public function forget_session() {
-		$this->setcookie( $this->_cookie, '', time() - YEAR_IN_SECONDS, $this->use_secure_cookie(), true );
+		$this->setcookie($this->_cookie, '', time() - YEAR_IN_SECONDS, $this->use_secure_cookie(), true);
 
 		wpinv_empty_cart();
 
@@ -275,7 +275,7 @@ 
 	 * @param int $uid User ID.
 	 * @return string
 	 */
-	public function nonce_user_logged_out( $uid ) {
+	public function nonce_user_logged_out($uid) {
 		return $this->has_session() && $this->_customer_id ? $this->_customer_id : $uid;
 	}
 
@@ -286,14 +286,14 @@ 
 	 * @param mixed  $default Default session value.
 	 * @return string|array
 	 */
-	public function get_session( $customer_id, $default = false ) {
+	public function get_session($customer_id, $default = false) {
 
-		if ( defined( 'WP_SETUP_CONFIG' ) ) {
+		if (defined('WP_SETUP_CONFIG')) {
 			return array();
 		}
 
-        if ( !is_user_logged_in() ) {
-            if(!wp_verify_nonce( $customer_id, 'wpinv-session-customer-id' )){
+        if (!is_user_logged_in()) {
+            if (!wp_verify_nonce($customer_id, 'wpinv-session-customer-id')) {
                 return array();
             }
         }
@@ -301,11 +301,11 @@ 
         $key = $this->generate_key($customer_id);
         $value = get_transient($key);
 
-        if ( !$value ) {
+        if (!$value) {
             $value = $default;
         }
 
-		return maybe_unserialize( $value );
+		return maybe_unserialize($value);
 	}
 
 	/**
@@ -313,7 +313,7 @@ 
 	 *
 	 * @param int $customer_id Customer ID.
 	 */
-	public function delete_session( $customer_id ) {
+	public function delete_session($customer_id) {
 
         $key = $this->generate_key($customer_id);
 
@@ -326,9 +326,9 @@ 
 	 * @param string $customer_id Customer ID.
 	 * @param int    $timestamp Timestamp to expire the cookie.
 	 */
-	public function update_session_timestamp( $customer_id, $timestamp ) {
+	public function update_session_timestamp($customer_id, $timestamp) {
 
-        set_transient( $this->generate_key($customer_id), maybe_serialize( $this->_data ), $timestamp);
+        set_transient($this->generate_key($customer_id), maybe_serialize($this->_data), $timestamp);
 
 	}
 }

includes/admin/html-admin-page-addons.php

Braces +4 added lines, -4 removed lines

@@ -126,7 +126,7 @@ 
 			</div>
 		</div>
 			<?php
-		}else{
+		} else{
 			$installed_plugins = get_plugins();
             $addon_obj = new WPInv_Admin_Addons();
 			if ($addons = $addon_obj->get_section_data( $current_tab ) ) :
@@ -151,14 +151,14 @@ 
 										echo '<a href="'.admin_url('/plugin-install.php?tab=plugin-information&plugin='.$addon->info->slug).'&width=770&height=660&TB_iframe=true" class="thickbox" >';
 										echo '<span class="wpi-product-info">'.__('More info','invoicing').'</span>';
 										echo '</a>';
-									}elseif(isset($addon->info->link) && substr( $addon->info->link, 0, 23 ) === "https://wpinvoicing.com"){
+									} elseif(isset($addon->info->link) && substr( $addon->info->link, 0, 23 ) === "https://wpinvoicing.com"){
 										if(defined('WP_EASY_UPDATES_ACTIVE')){
 											$url = admin_url('/plugin-install.php?tab=plugin-information&plugin='.$addon->info->slug.'&width=770&height=660&item_id='.$addon->info->id.'&update_url=https://wpinvoicing.com&TB_iframe=true');
-										}else{
+										} else{
 											// if installed show activation link
 											if(isset($installed_plugins['wp-easy-updates/external-updates.php'])){
 												$url = '#TB_inline?width=600&height=50&inlineId=wpi-wpeu-required-activation';
-											}else{
+											} else{
 												$url = '#TB_inline?width=600&height=50&inlineId=wpi-wpeu-required-for-external';
 											}
 										}

Indentation +64 added lines, -64 removed lines

@@ -4,7 +4,7 @@ 
  *
  */
 if ( ! defined( 'ABSPATH' ) ) {
-	exit;
+    exit;
 }
 add_ThickBox();
 ?>
@@ -14,18 +14,18 @@ 
 	<?php if ( $tabs ){ ?>
 		<nav class="nav-tab-wrapper wpi-nav-tab-wrapper">
 			<?php
-			foreach ( $tabs as $name => $label ) {
-				echo '<a href="' . admin_url( 'admin.php?page=wpi-addons&tab=' . $name ) . '" class="nav-tab ' . ( $current_tab == $name ? 'nav-tab-active' : '' ) . '">' . $label . '</a>';
-			}
-			do_action( 'wpi_addons_tabs' );
-			?>
+            foreach ( $tabs as $name => $label ) {
+                echo '<a href="' . admin_url( 'admin.php?page=wpi-addons&tab=' . $name ) . '" class="nav-tab ' . ( $current_tab == $name ? 'nav-tab-active' : '' ) . '">' . $label . '</a>';
+            }
+            do_action( 'wpi_addons_tabs' );
+            ?>
 		</nav>
 
 		<?php
 
-		if($current_tab == 'membership'){
+        if($current_tab == 'membership'){
 
-			?>
+            ?>
 
 			<div class="wpi-membership-tab-conatiner">
 				<div class="membership-content">
@@ -36,9 +36,9 @@ 
 					<h2><?php _e("Have a membership key?","invoicing");?></h2>
 					<p>
 						<?php
-						$wpeu_admin = new External_Updates_Admin('wpinvoicing.com','1');
-						echo $wpeu_admin->render_licence_actions('wpinvoicing.com', 'membership',array(95, 106, 108,12351));
-						?>
+                        $wpeu_admin = new External_Updates_Admin('wpinvoicing.com','1');
+                        echo $wpeu_admin->render_licence_actions('wpinvoicing.com', 'membership',array(95, 106, 108,12351));
+                        ?>
 					</p>
 				<?php }?>
 
@@ -48,13 +48,13 @@ 
 							<div class="feature-list">
 								<ul>
 									<?php
-									$addon_obj = new WPInv_Admin_Addons();
-									if ($addons = $addon_obj->get_section_data( 'addons' ) ) {
-										foreach ( $addons as $addon ) {
-											echo '<li><i class="far fa-check-circle fa-sm"></i> '.esc_html( $addon->info->title ).'</li>';
-										}
-									}
-									?>
+                                    $addon_obj = new WPInv_Admin_Addons();
+                                    if ($addons = $addon_obj->get_section_data( 'addons' ) ) {
+                                        foreach ( $addons as $addon ) {
+                                            echo '<li><i class="far fa-check-circle fa-sm"></i> '.esc_html( $addon->info->title ).'</li>';
+                                        }
+                                    }
+                                    ?>
 									</ul>
 
 									<div class="feature-cta">
@@ -65,12 +65,12 @@ 
 									<h3><?php _e("Included Gateways:","invoicing");?></h3>
 									<ul>
 										<?php
-										if ($addons = $addon_obj->get_section_data( 'gateways' ) ) {
-											foreach ( $addons as $addon ) {
-												echo '<li><i class="far fa-check-circle fa-sm"></i> '.esc_html( $addon->info->title ).'</li>';
-											}
-										}
-										?>
+                                        if ($addons = $addon_obj->get_section_data( 'gateways' ) ) {
+                                            foreach ( $addons as $addon ) {
+                                                echo '<li><i class="far fa-check-circle fa-sm"></i> '.esc_html( $addon->info->title ).'</li>';
+                                            }
+                                        }
+                                        ?>
 								</ul>
 							</div>
 
@@ -81,8 +81,8 @@ 
 						<div class="testimonial-content">
 							<div class="t-image">
 								<?php
-									echo '<img src="' . plugins_url( 'images/t-image2.png', dirname(__FILE__) ) . '" > ';
-								?>
+                                    echo '<img src="' . plugins_url( 'images/t-image2.png', dirname(__FILE__) ) . '" > ';
+                                ?>
 							</div>
 							<div class="t-content">
 								<p>
@@ -101,8 +101,8 @@ 
 						<div class="testimonial-content">
 							<div class="t-image">
 								<?php
-									echo '<img src="' . plugins_url( 'images/t-image1.png', dirname(__FILE__) ) . '" > ';
-								?>
+                                    echo '<img src="' . plugins_url( 'images/t-image1.png', dirname(__FILE__) ) . '" > ';
+                                ?>
 							</div>
 							<div class="t-content">
 								<p>
@@ -126,20 +126,20 @@ 
 			</div>
 		</div>
 			<?php
-		}else{
-			$installed_plugins = get_plugins();
+        }else{
+            $installed_plugins = get_plugins();
             $addon_obj = new WPInv_Admin_Addons();
-			if ($addons = $addon_obj->get_section_data( $current_tab ) ) :
-				?>
+            if ($addons = $addon_obj->get_section_data( $current_tab ) ) :
+                ?>
 				<ul class="wpi-products"><?php foreach ( $addons as $addon ) :
                         if(965==$addon->info->id){continue;}// don't show quote add on
-						?><li class="wpi-product">
+                        ?><li class="wpi-product">
 								<div class="wpi-product-title">
 									<h3><?php
-										if ( ! empty( $addon->info->excerpt) ){
-											echo wpi_help_tip( $addon->info->excerpt );
-										}
-										echo esc_html( $addon->info->title ); ?></h3>
+                                        if ( ! empty( $addon->info->excerpt) ){
+                                            echo wpi_help_tip( $addon->info->excerpt );
+                                        }
+                                        echo esc_html( $addon->info->title ); ?></h3>
 								</div>
 
 								<span class="wpi-product-image">
@@ -147,27 +147,27 @@ 
 										<img src="<?php echo esc_attr( $addon->info->thumbnail ); ?>"/>
 									<?php endif;
 
-									if(isset($addon->info->link) && substr( $addon->info->link, 0, 21 ) === "https://wordpress.org"){
-										echo '<a href="'.admin_url('/plugin-install.php?tab=plugin-information&plugin='.$addon->info->slug).'&width=770&height=660&TB_iframe=true" class="thickbox" >';
-										echo '<span class="wpi-product-info">'.__('More info','invoicing').'</span>';
-										echo '</a>';
-									}elseif(isset($addon->info->link) && substr( $addon->info->link, 0, 23 ) === "https://wpinvoicing.com"){
-										if(defined('WP_EASY_UPDATES_ACTIVE')){
-											$url = admin_url('/plugin-install.php?tab=plugin-information&plugin='.$addon->info->slug.'&width=770&height=660&item_id='.$addon->info->id.'&update_url=https://wpinvoicing.com&TB_iframe=true');
-										}else{
-											// if installed show activation link
-											if(isset($installed_plugins['wp-easy-updates/external-updates.php'])){
-												$url = '#TB_inline?width=600&height=50&inlineId=wpi-wpeu-required-activation';
-											}else{
-												$url = '#TB_inline?width=600&height=50&inlineId=wpi-wpeu-required-for-external';
-											}
-										}
-										echo '<a href="'.$url.'" class="thickbox">';
-										echo '<span class="wpi-product-info">'.__('More info','invoicing').'</span>';
-										echo '</a>';
-									}
-
-									?>
+                                    if(isset($addon->info->link) && substr( $addon->info->link, 0, 21 ) === "https://wordpress.org"){
+                                        echo '<a href="'.admin_url('/plugin-install.php?tab=plugin-information&plugin='.$addon->info->slug).'&width=770&height=660&TB_iframe=true" class="thickbox" >';
+                                        echo '<span class="wpi-product-info">'.__('More info','invoicing').'</span>';
+                                        echo '</a>';
+                                    }elseif(isset($addon->info->link) && substr( $addon->info->link, 0, 23 ) === "https://wpinvoicing.com"){
+                                        if(defined('WP_EASY_UPDATES_ACTIVE')){
+                                            $url = admin_url('/plugin-install.php?tab=plugin-information&plugin='.$addon->info->slug.'&width=770&height=660&item_id='.$addon->info->id.'&update_url=https://wpinvoicing.com&TB_iframe=true');
+                                        }else{
+                                            // if installed show activation link
+                                            if(isset($installed_plugins['wp-easy-updates/external-updates.php'])){
+                                                $url = '#TB_inline?width=600&height=50&inlineId=wpi-wpeu-required-activation';
+                                            }else{
+                                                $url = '#TB_inline?width=600&height=50&inlineId=wpi-wpeu-required-for-external';
+                                            }
+                                        }
+                                        echo '<a href="'.$url.'" class="thickbox">';
+                                        echo '<span class="wpi-product-info">'.__('More info','invoicing').'</span>';
+                                        echo '</a>';
+                                    }
+
+                                    ?>
 
 								</span>
 
@@ -175,15 +175,15 @@ 
 								<span class="wpi-product-button">
 									<?php
                                     $addon_obj->output_button( $addon );
-									?>
+                                    ?>
 								</span>
 
 								<span class="wpi-price"><?php //print_r($addon); //echo wp_kses_post( $addon->price ); ?></span></li><?php endforeach; ?></ul>
 			<?php endif;
-		}
+        }
 
-	}
-	?>
+    }
+    ?>
 
 
 	<div class="clearfix" ></div>
@@ -202,8 +202,8 @@ 
 			<input class="wpeu-licence-key" type="text" placeholder="<?php _e("Enter your licence key",'invoicing');?>"> <button class="button-primary wpeu-licence-popup-button" ><?php _e("Install",'invoicing');?></button>
 			<br>
 			<?php
-			echo sprintf( __('%sFind your licence key here%s OR %sBuy one here%s', 'invoicing'), '<a href="https://wpinvoicing.com/your-account/" target="_blank">','</a>','<a class="wpeu-licence-link" href="https://wpinvoicing.com/downloads/category/addons/" target="_blank">','</a>' );
-			?>
+            echo sprintf( __('%sFind your licence key here%s OR %sBuy one here%s', 'invoicing'), '<a href="https://wpinvoicing.com/your-account/" target="_blank">','</a>','<a class="wpeu-licence-link" href="https://wpinvoicing.com/downloads/category/addons/" target="_blank">','</a>' );
+            ?>
 		</span>
 	</div>
 

Spacing +54 added lines, -54 removed lines

@@ -3,7 +3,7 @@ 
  * Admin View: Page - Addons
  *
  */
-if ( ! defined( 'ABSPATH' ) ) {
+if (!defined('ABSPATH')) {
 	exit;
 }
 add_ThickBox();
@@ -11,19 +11,19 @@ 
 <div class="wrap wpi_addons_wrap">
 	<h1><?php echo get_admin_page_title(); ?></h1>
 
-	<?php if ( $tabs ){ ?>
+	<?php if ($tabs) { ?>
 		<nav class="nav-tab-wrapper wpi-nav-tab-wrapper">
 			<?php
-			foreach ( $tabs as $name => $label ) {
-				echo '<a href="' . admin_url( 'admin.php?page=wpi-addons&tab=' . $name ) . '" class="nav-tab ' . ( $current_tab == $name ? 'nav-tab-active' : '' ) . '">' . $label . '</a>';
+			foreach ($tabs as $name => $label) {
+				echo '<a href="' . admin_url('admin.php?page=wpi-addons&tab=' . $name) . '" class="nav-tab ' . ($current_tab == $name ? 'nav-tab-active' : '') . '">' . $label . '</a>';
 			}
-			do_action( 'wpi_addons_tabs' );
+			do_action('wpi_addons_tabs');
 			?>
 		</nav>
 
 		<?php
 
-		if($current_tab == 'membership'){
+		if ($current_tab == 'membership') {
 
 			?>
 
@@ -32,42 +32,42 @@ 
 <!--
 				<h2>With our WPInvoicing Membership you get access to all our products!</h2>
 				<p><a class="button button-primary" href="https://wpinvoicing.com/downloads/membership/">View Memberships</a></p>-->
-				<?php if(defined('WP_EASY_UPDATES_ACTIVE')){?>
-					<h2><?php _e("Have a membership key?","invoicing");?></h2>
+				<?php if (defined('WP_EASY_UPDATES_ACTIVE')) {?>
+					<h2><?php _e("Have a membership key?", "invoicing"); ?></h2>
 					<p>
 						<?php
-						$wpeu_admin = new External_Updates_Admin('wpinvoicing.com','1');
-						echo $wpeu_admin->render_licence_actions('wpinvoicing.com', 'membership',array(95, 106, 108,12351));
+						$wpeu_admin = new External_Updates_Admin('wpinvoicing.com', '1');
+						echo $wpeu_admin->render_licence_actions('wpinvoicing.com', 'membership', array(95, 106, 108, 12351));
 						?>
 					</p>
 				<?php }?>
 
 				<div class="membership-cta-contet">
 					<div class="main-cta">
-							<h2><?php _e("Membership benefits Include:","invoicing");?></h2>
+							<h2><?php _e("Membership benefits Include:", "invoicing"); ?></h2>
 							<div class="feature-list">
 								<ul>
 									<?php
 									$addon_obj = new WPInv_Admin_Addons();
-									if ($addons = $addon_obj->get_section_data( 'addons' ) ) {
-										foreach ( $addons as $addon ) {
-											echo '<li><i class="far fa-check-circle fa-sm"></i> '.esc_html( $addon->info->title ).'</li>';
+									if ($addons = $addon_obj->get_section_data('addons')) {
+										foreach ($addons as $addon) {
+											echo '<li><i class="far fa-check-circle fa-sm"></i> ' . esc_html($addon->info->title) . '</li>';
 										}
 									}
 									?>
 									</ul>
 
 									<div class="feature-cta">
-										<h3><?php _e("Membership Starts from","invoicing");?></h3>
+										<h3><?php _e("Membership Starts from", "invoicing"); ?></h3>
 										<h4>$99</h4>
-										<a href="https://wpinvoicing.com/downloads/membership/" target="_blank"><?php _e("Buy Membership","invoicing");?></a>
+										<a href="https://wpinvoicing.com/downloads/membership/" target="_blank"><?php _e("Buy Membership", "invoicing"); ?></a>
 									</div>
-									<h3><?php _e("Included Gateways:","invoicing");?></h3>
+									<h3><?php _e("Included Gateways:", "invoicing"); ?></h3>
 									<ul>
 										<?php
-										if ($addons = $addon_obj->get_section_data( 'gateways' ) ) {
-											foreach ( $addons as $addon ) {
-												echo '<li><i class="far fa-check-circle fa-sm"></i> '.esc_html( $addon->info->title ).'</li>';
+										if ($addons = $addon_obj->get_section_data('gateways')) {
+											foreach ($addons as $addon) {
+												echo '<li><i class="far fa-check-circle fa-sm"></i> ' . esc_html($addon->info->title) . '</li>';
 											}
 										}
 										?>
@@ -81,7 +81,7 @@ 
 						<div class="testimonial-content">
 							<div class="t-image">
 								<?php
-									echo '<img src="' . plugins_url( 'images/t-image2.png', dirname(__FILE__) ) . '" > ';
+									echo '<img src="' . plugins_url('images/t-image2.png', dirname(__FILE__)) . '" > ';
 								?>
 							</div>
 							<div class="t-content">
@@ -101,7 +101,7 @@ 
 						<div class="testimonial-content">
 							<div class="t-image">
 								<?php
-									echo '<img src="' . plugins_url( 'images/t-image1.png', dirname(__FILE__) ) . '" > ';
+									echo '<img src="' . plugins_url('images/t-image1.png', dirname(__FILE__)) . '" > ';
 								?>
 							</div>
 							<div class="t-content">
@@ -117,8 +117,8 @@ 
 						</div>
 					</div>
 					<div class="member-footer">
-						<a class="footer-btn" href="https://wpinvoicing.com/downloads/membership/" target="_blank"><?php _e("Buy Membership","invoicing");?></a>
-						<a class="footer-link" href="post-new.php?post_type=wpi_invoice"><?php _e("Create Invoice","invoicing");?></a>
+						<a class="footer-btn" href="https://wpinvoicing.com/downloads/membership/" target="_blank"><?php _e("Buy Membership", "invoicing"); ?></a>
+						<a class="footer-link" href="post-new.php?post_type=wpi_invoice"><?php _e("Create Invoice", "invoicing"); ?></a>
 					</div>
 				</div>
 
@@ -126,44 +126,44 @@ 
 			</div>
 		</div>
 			<?php
-		}else{
+		} else {
 			$installed_plugins = get_plugins();
             $addon_obj = new WPInv_Admin_Addons();
-			if ($addons = $addon_obj->get_section_data( $current_tab ) ) :
+			if ($addons = $addon_obj->get_section_data($current_tab)) :
 				?>
-				<ul class="wpi-products"><?php foreach ( $addons as $addon ) :
-                        if(965==$addon->info->id){continue;}// don't show quote add on
+				<ul class="wpi-products"><?php foreach ($addons as $addon) :
+                        if (965 == $addon->info->id) {continue; }// don't show quote add on
 						?><li class="wpi-product">
 								<div class="wpi-product-title">
 									<h3><?php
-										if ( ! empty( $addon->info->excerpt) ){
-											echo wpi_help_tip( $addon->info->excerpt );
+										if (!empty($addon->info->excerpt)) {
+											echo wpi_help_tip($addon->info->excerpt);
 										}
-										echo esc_html( $addon->info->title ); ?></h3>
+										echo esc_html($addon->info->title); ?></h3>
 								</div>
 
 								<span class="wpi-product-image">
-									<?php if ( ! empty( $addon->info->thumbnail) ) : ?>
-										<img src="<?php echo esc_attr( $addon->info->thumbnail ); ?>"/>
+									<?php if (!empty($addon->info->thumbnail)) : ?>
+										<img src="<?php echo esc_attr($addon->info->thumbnail); ?>"/>
 									<?php endif;
 
-									if(isset($addon->info->link) && substr( $addon->info->link, 0, 21 ) === "https://wordpress.org"){
-										echo '<a href="'.admin_url('/plugin-install.php?tab=plugin-information&plugin='.$addon->info->slug).'&width=770&height=660&TB_iframe=true" class="thickbox" >';
-										echo '<span class="wpi-product-info">'.__('More info','invoicing').'</span>';
+									if (isset($addon->info->link) && substr($addon->info->link, 0, 21) === "https://wordpress.org") {
+										echo '<a href="' . admin_url('/plugin-install.php?tab=plugin-information&plugin=' . $addon->info->slug) . '&width=770&height=660&TB_iframe=true" class="thickbox" >';
+										echo '<span class="wpi-product-info">' . __('More info', 'invoicing') . '</span>';
 										echo '</a>';
-									}elseif(isset($addon->info->link) && substr( $addon->info->link, 0, 23 ) === "https://wpinvoicing.com"){
-										if(defined('WP_EASY_UPDATES_ACTIVE')){
-											$url = admin_url('/plugin-install.php?tab=plugin-information&plugin='.$addon->info->slug.'&width=770&height=660&item_id='.$addon->info->id.'&update_url=https://wpinvoicing.com&TB_iframe=true');
-										}else{
+									}elseif (isset($addon->info->link) && substr($addon->info->link, 0, 23) === "https://wpinvoicing.com") {
+										if (defined('WP_EASY_UPDATES_ACTIVE')) {
+											$url = admin_url('/plugin-install.php?tab=plugin-information&plugin=' . $addon->info->slug . '&width=770&height=660&item_id=' . $addon->info->id . '&update_url=https://wpinvoicing.com&TB_iframe=true');
+										} else {
 											// if installed show activation link
-											if(isset($installed_plugins['wp-easy-updates/external-updates.php'])){
+											if (isset($installed_plugins['wp-easy-updates/external-updates.php'])) {
 												$url = '#TB_inline?width=600&height=50&inlineId=wpi-wpeu-required-activation';
-											}else{
+											} else {
 												$url = '#TB_inline?width=600&height=50&inlineId=wpi-wpeu-required-for-external';
 											}
 										}
-										echo '<a href="'.$url.'" class="thickbox">';
-										echo '<span class="wpi-product-info">'.__('More info','invoicing').'</span>';
+										echo '<a href="' . $url . '" class="thickbox">';
+										echo '<span class="wpi-product-info">' . __('More info', 'invoicing') . '</span>';
 										echo '</a>';
 									}
 
@@ -174,7 +174,7 @@ 
 
 								<span class="wpi-product-button">
 									<?php
-                                    $addon_obj->output_button( $addon );
+                                    $addon_obj->output_button($addon);
 									?>
 								</span>
 
@@ -188,21 +188,21 @@ 
 
 	<div class="clearfix" ></div>
 
-	<?php if($current_tab =='addons'){ ?>
-	<p><?php printf( __( 'All of our Invoicing Addons can be found on WPInvoicing.com here: <a href="%s">Invoicing Addons</a>', 'invoicing' ), 'https://wpinvoicing.com/downloads/category/addons/' ); ?></p>
-	<?php } if($current_tab =='gateways'){  ?>
-    <p><?php printf( __( 'All of our Invoicing Payment Gateways can be found on WPInvoicing.com here: <a href="%s">Invoicing Payment Gateways</a>', 'invoicing' ), 'https://wpinvoicing.com/downloads/category/gateways/' ); ?></p>
+	<?php if ($current_tab == 'addons') { ?>
+	<p><?php printf(__('All of our Invoicing Addons can be found on WPInvoicing.com here: <a href="%s">Invoicing Addons</a>', 'invoicing'), 'https://wpinvoicing.com/downloads/category/addons/'); ?></p>
+	<?php } if ($current_tab == 'gateways') {  ?>
+    <p><?php printf(__('All of our Invoicing Payment Gateways can be found on WPInvoicing.com here: <a href="%s">Invoicing Payment Gateways</a>', 'invoicing'), 'https://wpinvoicing.com/downloads/category/gateways/'); ?></p>
     <?php } ?>
 
-	<div id="wpi-wpeu-required-activation" style="display:none;"><span class="wpi-notification "><?php printf( __("The plugin <a href='https://wpeasyupdates.com/' target='_blank'>WP Easy Updates</a> is required to check for and update some installed plugins/themes, please <a href='%s'>activate</a> it now.",'invoicing'),wp_nonce_url(admin_url('plugins.php?action=activate&plugin=wp-easy-updates/external-updates.php'), 'activate-plugin_wp-easy-updates/external-updates.php'));?></span></div>
-	<div id="wpi-wpeu-required-for-external" style="display:none;"><span class="wpi-notification "><?php printf(  __("The plugin <a href='https://wpeasyupdates.com/' target='_blank'>WP Easy Updates</a> is required to check for and update some installed plugins/themes, please <a href='%s' onclick='window.open(\"https://wpeasyupdates.com/wp-easy-updates.zip\", \"_blank\");' >download</a> and install it now.",'invoicing'),admin_url("plugin-install.php?tab=upload&wpeu-install=true"));?></span></div>
+	<div id="wpi-wpeu-required-activation" style="display:none;"><span class="wpi-notification "><?php printf(__("The plugin <a href='https://wpeasyupdates.com/' target='_blank'>WP Easy Updates</a> is required to check for and update some installed plugins/themes, please <a href='%s'>activate</a> it now.", 'invoicing'), wp_nonce_url(admin_url('plugins.php?action=activate&plugin=wp-easy-updates/external-updates.php'), 'activate-plugin_wp-easy-updates/external-updates.php')); ?></span></div>
+	<div id="wpi-wpeu-required-for-external" style="display:none;"><span class="wpi-notification "><?php printf(__("The plugin <a href='https://wpeasyupdates.com/' target='_blank'>WP Easy Updates</a> is required to check for and update some installed plugins/themes, please <a href='%s' onclick='window.open(\"https://wpeasyupdates.com/wp-easy-updates.zip\", \"_blank\");' >download</a> and install it now.", 'invoicing'), admin_url("plugin-install.php?tab=upload&wpeu-install=true")); ?></span></div>
 	<div id="wpeu-licence-popup" style="display:none;">
 		<span class="wpi-notification noti-white">
-			<h3 class="wpeu-licence-title"><?php _e("Licence key",'invoicing');?></h3>
-			<input class="wpeu-licence-key" type="text" placeholder="<?php _e("Enter your licence key",'invoicing');?>"> <button class="button-primary wpeu-licence-popup-button" ><?php _e("Install",'invoicing');?></button>
+			<h3 class="wpeu-licence-title"><?php _e("Licence key", 'invoicing'); ?></h3>
+			<input class="wpeu-licence-key" type="text" placeholder="<?php _e("Enter your licence key", 'invoicing'); ?>"> <button class="button-primary wpeu-licence-popup-button" ><?php _e("Install", 'invoicing'); ?></button>
 			<br>
 			<?php
-			echo sprintf( __('%sFind your licence key here%s OR %sBuy one here%s', 'invoicing'), '<a href="https://wpinvoicing.com/your-account/" target="_blank">','</a>','<a class="wpeu-licence-link" href="https://wpinvoicing.com/downloads/category/addons/" target="_blank">','</a>' );
+			echo sprintf(__('%sFind your licence key here%s OR %sBuy one here%s', 'invoicing'), '<a href="https://wpinvoicing.com/your-account/" target="_blank">', '</a>', '<a class="wpeu-licence-link" href="https://wpinvoicing.com/downloads/category/addons/" target="_blank">', '</a>');
 			?>
 		</span>
 	</div>

includes/class-wpinv-cli.php

Spacing +16 added lines, -16 removed lines

@@ -7,7 +7,7 @@ 
  */
  
 // MUST have WordPress.
-if ( !defined( 'WPINC' ) ) {
+if (!defined('WPINC')) {
     exit;
 }
 
@@ -24,40 +24,40 @@ 
      *  @param Array $assoc_args Key value arguments stored in associated array format.
      *  @since 1.0.13
      */
-    public function insert_invoice( $args, $assoc_args ) {
+    public function insert_invoice($args, $assoc_args) {
 
         // Fetch invoice data from the args
-        $invoice_data = wp_unslash( $assoc_args );
+        $invoice_data = wp_unslash($assoc_args);
 
         // Abort if no invoice data is provided
-        if( empty( $invoice_data ) ) {
-            return WP_CLI::error( __( 'Invoice data not provided', 'invoicing' ) );
+        if (empty($invoice_data)) {
+            return WP_CLI::error(__('Invoice data not provided', 'invoicing'));
         }
 
         //Cart details
-        if( !empty( $invoice_data['cart_details'] ) ) {
-            $invoice_data['cart_details'] = json_decode( $invoice_data['cart_details'], true );
+        if (!empty($invoice_data['cart_details'])) {
+            $invoice_data['cart_details'] = json_decode($invoice_data['cart_details'], true);
         }
 
         //User details
-        if( !empty( $invoice_data['user_info'] ) ) {
-            $invoice_data['user_info'] = json_decode( $invoice_data['user_info'], true );
+        if (!empty($invoice_data['user_info'])) {
+            $invoice_data['user_info'] = json_decode($invoice_data['user_info'], true);
         }
 
         //Payment info
-        if( !empty( $invoice_data['payment_details'] ) ) {
-            $invoice_data['payment_details'] = json_decode( $invoice_data['payment_details'], true );
+        if (!empty($invoice_data['payment_details'])) {
+            $invoice_data['payment_details'] = json_decode($invoice_data['payment_details'], true);
         }
 
         // Try creating the invoice
-        $invoice = wpinv_insert_invoice( $invoice_data, true );
+        $invoice = wpinv_insert_invoice($invoice_data, true);
 
-        if ( is_wp_error( $invoice ) ) {
-            return WP_CLI::error( $invoice->get_error_message() );
+        if (is_wp_error($invoice)) {
+            return WP_CLI::error($invoice->get_error_message());
         }
 
-        $message = sprintf( __( 'Invoice %s created', 'invoicing' ), $invoice->ID );
-        WP_CLI::success( $message );
+        $message = sprintf(__('Invoice %s created', 'invoicing'), $invoice->ID);
+        WP_CLI::success($message);
     }
     
     

widgets/invoice-history.php

Indentation +15 added lines, -15 removed lines

@@ -46,25 +46,25 @@
         parent::__construct( $options );
     }
 
-	/**
-	 * The Super block output function.
-	 *
-	 * @param array $args
-	 * @param array $widget_args
-	 * @param string $content
-	 *
-	 * @return mixed|string|bool
-	 */
+    /**
+     * The Super block output function.
+     *
+     * @param array $args
+     * @param array $widget_args
+     * @param string $content
+     *
+     * @return mixed|string|bool
+     */
     public function output( $args = array(), $widget_args = array(), $content = '' ) {
 
-	    ob_start();
+        ob_start();
 
-	    do_action( 'wpinv_before_user_invoice_history' );
-	    wpinv_get_template_part( 'wpinv-invoice-history' );
-	    do_action( 'wpinv_after_user_invoice_history' );
+        do_action( 'wpinv_before_user_invoice_history' );
+        wpinv_get_template_part( 'wpinv-invoice-history' );
+        do_action( 'wpinv_after_user_invoice_history' );
 
-	    $output = ob_get_clean();
-	    return trim($output);
+        $output = ob_get_clean();
+        return trim($output);
 
     }
 

Spacing +10 added lines, -10 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if (!defined('ABSPATH')) {
     exit;
 }
 
@@ -22,15 +22,15 @@ 
             'block-keywords'=> "['invoicing','history']",
             'class_name'     => __CLASS__,
             'base_id'       => 'wpinv_history',
-            'name'          => __('Invoicing > Invoice History','invoicing'),
+            'name'          => __('Invoicing > Invoice History', 'invoicing'),
             'widget_ops'    => array(
                 'classname'   => 'wpinv-history-class wpi-g',
-                'description' => esc_html__('Displays invoice history.','invoicing'),
+                'description' => esc_html__('Displays invoice history.', 'invoicing'),
             ),
             'arguments'     => array(
                 'title'  => array(
-                    'title'       => __( 'Widget title', 'invoicing' ),
-                    'desc'        => __( 'Enter widget title.', 'invoicing' ),
+                    'title'       => __('Widget title', 'invoicing'),
+                    'desc'        => __('Enter widget title.', 'invoicing'),
                     'type'        => 'text',
                     'desc_tip'    => true,
                     'default'     => '',
@@ -41,7 +41,7 @@ 
         );
 
 
-        parent::__construct( $options );
+        parent::__construct($options);
     }
 
 	/**
@@ -53,13 +53,13 @@ 
 	 *
 	 * @return mixed|string|bool
 	 */
-    public function output( $args = array(), $widget_args = array(), $content = '' ) {
+    public function output($args = array(), $widget_args = array(), $content = '') {
 
 	    ob_start();
 
-	    do_action( 'wpinv_before_user_invoice_history' );
-	    wpinv_get_template_part( 'wpinv-invoice-history' );
-	    do_action( 'wpinv_after_user_invoice_history' );
+	    do_action('wpinv_before_user_invoice_history');
+	    wpinv_get_template_part('wpinv-invoice-history');
+	    do_action('wpinv_after_user_invoice_history');
 
 	    $output = ob_get_clean();
 	    return trim($output);

widgets/invoice-messages.php

Indentation +12 added lines, -12 removed lines

@@ -44,22 +44,22 @@
         parent::__construct( $options );
     }
 
-	/**
-	 * The Super block output function.
-	 *
-	 * @param array $args
-	 * @param array $widget_args
-	 * @param string $content
-	 *
-	 * @return mixed|string|bool
-	 */
+    /**
+     * The Super block output function.
+     *
+     * @param array $args
+     * @param array $widget_args
+     * @param string $content
+     *
+     * @return mixed|string|bool
+     */
     public function output( $args = array(), $widget_args = array(), $content = '' ) {
 
-	    ob_start();
+        ob_start();
 
-	    wpinv_print_errors();
+        wpinv_print_errors();
 
-	    return '<div class="wpinv">' . ob_get_clean() . '</div>';
+        return '<div class="wpinv">' . ob_get_clean() . '</div>';
 
     }
 

Spacing +7 added lines, -7 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if (!defined('ABSPATH')) {
     exit;
 }
 
@@ -22,15 +22,15 @@ 
             'block-keywords'=> "['invoicing','history']",
             'class_name'     => __CLASS__,
             'base_id'       => 'wpinv_messages',
-            'name'          => __('Invoicing > Invoice Messages','invoicing'),
+            'name'          => __('Invoicing > Invoice Messages', 'invoicing'),
             'widget_ops'    => array(
                 'classname'   => 'wpinv-messages-class  wpi-g',
-                'description' => esc_html__('Displays invoice error and warning messages on checkout page.','invoicing'),
+                'description' => esc_html__('Displays invoice error and warning messages on checkout page.', 'invoicing'),
             ),
             'arguments'     => array(
                 'title'  => array(
-                    'title'       => __( 'Widget title', 'invoicing' ),
-                    'desc'        => __( 'Enter widget title.', 'invoicing' ),
+                    'title'       => __('Widget title', 'invoicing'),
+                    'desc'        => __('Enter widget title.', 'invoicing'),
                     'type'        => 'text',
                     'desc_tip'    => true,
                     'default'     => '',
@@ -41,7 +41,7 @@ 
         );
 
 
-        parent::__construct( $options );
+        parent::__construct($options);
     }
 
 	/**
@@ -53,7 +53,7 @@ 
 	 *
 	 * @return mixed|string|bool
 	 */
-    public function output( $args = array(), $widget_args = array(), $content = '' ) {
+    public function output($args = array(), $widget_args = array(), $content = '') {
 
 	    ob_start();
 

widgets/checkout.php

Indentation +10 added lines, -10 removed lines

@@ -46,18 +46,18 @@
         parent::__construct( $options );
     }
 
-	/**
-	 * The Super block output function.
-	 *
-	 * @param array $args
-	 * @param array $widget_args
-	 * @param string $content
-	 *
-	 * @return mixed|string|bool
-	 */
+    /**
+     * The Super block output function.
+     *
+     * @param array $args
+     * @param array $widget_args
+     * @param string $content
+     *
+     * @return mixed|string|bool
+     */
     public function output( $args = array(), $widget_args = array(), $content = '' ) {
 
-	    return wpinv_checkout_form();
+        return wpinv_checkout_form();
 
     }
 

Spacing +7 added lines, -7 removed lines

@@ -1,5 +1,5 @@ 
 <?php
-if ( ! defined( 'ABSPATH' ) ) {
+if (!defined('ABSPATH')) {
     exit;
 }
 
@@ -23,15 +23,15 @@ 
             'block-keywords'=> "['invoicing','checkout']",
             'class_name'     => __CLASS__,
             'base_id'       => 'wpinv_checkout',
-            'name'          => __('Invoicing > Checkout','invoicing'),
+            'name'          => __('Invoicing > Checkout', 'invoicing'),
             'widget_ops'    => array(
                 'classname'   => 'wpinv-checkout-class wpi-g',
-                'description' => esc_html__('Displays checkout form.','invoicing'),
+                'description' => esc_html__('Displays checkout form.', 'invoicing'),
             ),
             'arguments'     => array(
                 'title'  => array(
-                    'title'       => __( 'Widget title', 'invoicing' ),
-                    'desc'        => __( 'Enter widget title.', 'invoicing' ),
+                    'title'       => __('Widget title', 'invoicing'),
+                    'desc'        => __('Enter widget title.', 'invoicing'),
                     'type'        => 'text',
                     'desc_tip'    => true,
                     'default'     => '',
@@ -42,7 +42,7 @@ 
         );
 
 
-        parent::__construct( $options );
+        parent::__construct($options);
     }
 
 	/**
@@ -54,7 +54,7 @@ 
 	 *
 	 * @return mixed|string|bool
 	 */
-    public function output( $args = array(), $widget_args = array(), $content = '' ) {
+    public function output($args = array(), $widget_args = array(), $content = '') {
 
 	    return wpinv_checkout_form();