AyeCode / invoicing

includes/wpinv-template-functions.php

Spacing +462 added lines, -462 removed lines

@@ -4,99 +4,99 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Displays an invoice.
  *
  * @param WPInv_Invoice $invoice.
  */
-function getpaid_invoice( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/invoice.php', compact( 'invoice' ) );
+function getpaid_invoice($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/invoice.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice', 'getpaid_invoice', 10 );
+add_action('getpaid_invoice', 'getpaid_invoice', 10);
 
 /**
  * Displays the invoice footer.
  */
-function getpaid_invoice_footer( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/footer.php', compact( 'invoice' ) );
+function getpaid_invoice_footer($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/footer.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_footer', 'getpaid_invoice_footer', 10 );
+add_action('getpaid_invoice_footer', 'getpaid_invoice_footer', 10);
 
 /**
  * Displays the invoice top bar.
  */
-function getpaid_invoice_header( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/header.php', compact( 'invoice' ) );
+function getpaid_invoice_header($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/header.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_header', 'getpaid_invoice_header', 10 );
+add_action('getpaid_invoice_header', 'getpaid_invoice_header', 10);
 
 /**
  * Displays actions on the left side of the header.
  */
-function getpaid_invoice_header_left_actions( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/header-left-actions.php', compact( 'invoice' ) );
+function getpaid_invoice_header_left_actions($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/header-left-actions.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_header_left', 'getpaid_invoice_header_left_actions', 10 );
+add_action('getpaid_invoice_header_left', 'getpaid_invoice_header_left_actions', 10);
 
 /**
  * Displays actions on the right side of the invoice top bar.
  */
-function getpaid_invoice_header_right_actions( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/header-right-actions.php', compact( 'invoice' ) );
+function getpaid_invoice_header_right_actions($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/header-right-actions.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_header_right', 'getpaid_invoice_header_right_actions', 10 );
+add_action('getpaid_invoice_header_right', 'getpaid_invoice_header_right_actions', 10);
 
 /**
  * Displays the invoice title, logo etc.
  */
-function getpaid_invoice_details_top( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/details-top.php', compact( 'invoice' ) );
+function getpaid_invoice_details_top($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/details-top.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_details', 'getpaid_invoice_details_top', 10 );
+add_action('getpaid_invoice_details', 'getpaid_invoice_details_top', 10);
 
 /**
  * Displays the company logo.
  */
-function getpaid_invoice_logo( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/invoice-logo.php', compact( 'invoice' ) );
+function getpaid_invoice_logo($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/invoice-logo.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_details_top_left', 'getpaid_invoice_logo' );
+add_action('getpaid_invoice_details_top_left', 'getpaid_invoice_logo');
 
 /**
  * Displays the type of invoice.
  */
-function getpaid_invoice_type( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/invoice-type.php', compact( 'invoice' ) );
+function getpaid_invoice_type($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/invoice-type.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_details_top_right', 'getpaid_invoice_type' );
+add_action('getpaid_invoice_details_top_right', 'getpaid_invoice_type');
 
 /**
  * Displays the invoice details.
  */
-function getpaid_invoice_details_main( $invoice ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/details.php', compact( 'invoice' ) );
+function getpaid_invoice_details_main($invoice) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/details.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_details', 'getpaid_invoice_details_main', 50 );
+add_action('getpaid_invoice_details', 'getpaid_invoice_details_main', 50);
 
 /**
  * Returns a path to the templates directory.
@@ -125,8 +125,8 @@ 
  * @param string $template_path The templates directory relative to the theme's root dir. Defaults to 'invoicing'.
  * @param string $default_path The root path to the default template. Defaults to invoicing/templates
  */
-function wpinv_get_template( $template_name, $args = array(), $template_path = '', $default_path = '' ) {
-    getpaid_template()->display_template( $template_name, $args, $template_path, $default_path );
+function wpinv_get_template($template_name, $args = array(), $template_path = '', $default_path = '') {
+    getpaid_template()->display_template($template_name, $args, $template_path, $default_path);
 }
 
 /**
@@ -139,8 +139,8 @@ 
  * @param string $template_path The templates directory relative to the theme's root dir. Defaults to 'invoicing'.
  * @param string $default_path The root path to the default template. Defaults to invoicing/templates
  */
-function wpinv_get_template_html( $template_name, $args = array(), $template_path = '', $default_path = '' ) {
-	return getpaid_template()->get_template( $template_name, $args, $template_path, $default_path );
+function wpinv_get_template_html($template_name, $args = array(), $template_path = '', $default_path = '') {
+	return getpaid_template()->get_template($template_name, $args, $template_path, $default_path);
 }
 
 /**
@@ -149,7 +149,7 @@ 
  * @return string
  */
 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());
 }
 
 /**
@@ -158,7 +158,7 @@ 
  * @return string
  */
 function wpinv_get_theme_template_dir_name() {
-	return trailingslashit( apply_filters( 'wpinv_templates_dir', 'invoicing' ) );
+	return trailingslashit(apply_filters('wpinv_templates_dir', 'invoicing'));
 }
 
 /**
@@ -170,58 +170,58 @@ 
  * @param string $template_path The template path relative to the theme's root dir. Defaults to 'invoicing'.
  * @param string $default_path The root path to the default template. Defaults to invoicing/templates
  */
-function wpinv_locate_template( $template_name, $template_path = '', $default_path = '' ) {
-    return getpaid_template()->locate_template( $template_name, $template_path, $default_path );
+function wpinv_locate_template($template_name, $template_path = '', $default_path = '') {
+    return getpaid_template()->locate_template($template_name, $template_path, $default_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;
@@ -231,73 +231,73 @@ 
 	$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_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_select( $args = array() ) {
+function wpinv_html_select($args = array()) {
     $defaults = array(
         'options'          => array(),
         'name'             => null,
@@ -306,8 +306,8 @@ 
         '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,
@@ -315,79 +315,79 @@ 
         'readonly'         => false,
     );
 
-    $args = wp_parse_args( $args, $defaults );
+    $args = wp_parse_args($args, $defaults);
 
     $attrs = array(
         'name'     => $args['name'],
         'id'       => $args['id'],
-        'class'    => 'wpinv-select ' . implode( ' ', array_map( 'sanitize_html_class', explode( ' ', $args['class'] ) ) ),
-        'multiple' => ! empty( $args['multiple'] ),
-        'readonly' => ! empty( $args['readonly'] ),
-        'disabled' => ! empty( $args['disabled'] ),
-        'required' => ! empty( $args['required'] ),
-        'onchange' => ! empty( $args['onchange'] ),
+        'class'    => 'wpinv-select ' . implode(' ', array_map('sanitize_html_class', explode(' ', $args['class']))),
+        'multiple' => !empty($args['multiple']),
+        'readonly' => !empty($args['readonly']),
+        'disabled' => !empty($args['disabled']),
+        'required' => !empty($args['required']),
+        'onchange' => !empty($args['onchange']),
     );
 
-    if ( $args['placeholder'] ) {
+    if ($args['placeholder']) {
         $attrs['data-placeholder'] = $args['placeholder'];
     }
 
-    if ( $args['onchange'] ) {
+    if ($args['onchange']) {
         $attrs['onchange'] = $args['onchange'];
     }
 
-    foreach ( $args['data'] as $key => $value ) {
+    foreach ($args['data'] as $key => $value) {
         $attrs["data-$key"] = $value;
     }
 
     echo '<select ';
 
-    foreach ( $attrs as $attr => $value ) {
+    foreach ($attrs as $attr => $value) {
 
-        if ( false === $value ) {
+        if (false === $value) {
             continue;
         }
 
-        if ( true === $value ) {
-            echo ' ' . esc_attr( $attr );
+        if (true === $value) {
+            echo ' ' . esc_attr($attr);
         } else {
-            echo ' ' . esc_attr( $attr ) . '="' . esc_attr( $value ) . '"';
+            echo ' ' . esc_attr($attr) . '="' . esc_attr($value) . '"';
         }
 
     }
 
     echo '>';
 
-    if ( $args['show_option_all'] ) {
-        if ( $args['multiple'] ) {
-            $selected = in_array( 0, $args['selected'] );
+    if ($args['show_option_all']) {
+        if ($args['multiple']) {
+            $selected = in_array(0, $args['selected']);
         } else {
-            $selected = empty( $args['selected'] );
+            $selected = empty($args['selected']);
         }
-        echo '<option value="all"' . selected( $selected, true, false ) . '>' . esc_html( $args['show_option_all'] ) . '</option>';
+        echo '<option value="all"' . selected($selected, true, false) . '>' . esc_html($args['show_option_all']) . '</option>';
     }
 
-    if ( ! empty( $args['options'] ) ) {
+    if (!empty($args['options'])) {
 
-        if ( $args['show_option_none'] ) {
-            if ( $args['multiple'] ) {
-                $selected = in_array( '', $args['selected'], true );
+        if ($args['show_option_none']) {
+            if ($args['multiple']) {
+                $selected = in_array('', $args['selected'], true);
             } else {
                 $selected = $args['selected'] === '';
             }
 
-            echo '<option value=""' . selected( $selected, true, false ) . '>' . esc_html( $args['show_option_none'] ) . '</option>';
+            echo '<option value=""' . selected($selected, true, false) . '>' . 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 = in_array( $key, $args['selected'], true );
+            if ($args['multiple'] && is_array($args['selected'])) {
+                $selected = in_array($key, $args['selected'], true);
             } else {
                 $selected = $args['selected'] === $key;
             }
 
-            echo '<option value="' . esc_attr( $key ) . '"' . selected( $selected, true, false ) . '>' . esc_html( $option ) . '</option>';
+            echo '<option value="' . esc_attr($key) . '"' . selected($selected, true, false) . '>' . esc_html($option) . '</option>';
         }
     }
 
@@ -395,7 +395,7 @@ 
 
 }
 
-function wpinv_item_dropdown( $args = array() ) {
+function wpinv_item_dropdown($args = array()) {
     $defaults = array(
         'name'             => 'wpi_item',
         'id'               => 'wpi_item',
@@ -403,14 +403,14 @@ 
         'multiple'         => false,
         'selected'         => 0,
         'number'           => -1,
-        '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',
@@ -428,40 +428,40 @@ 
         ),
     );
 
-    $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;
+                $options[$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']);
         }
     }
 
@@ -497,16 +497,16 @@ 
     );
 
     $options = array();
-    if ( $items ) {
-        foreach ( $items as $item ) {
-            $options[ $item->ID ] = esc_html( $item->post_title ) . wpinv_get_item_suffix( $item->ID, false );
+    if ($items) {
+        foreach ($items as $item) {
+            $options[$item->ID] = esc_html($item->post_title) . wpinv_get_item_suffix($item->ID, false);
         }
     }
 
     return $options;
 }
 
-function wpinv_html_checkbox( $args = array() ) {
+function wpinv_html_checkbox($args = array()) {
     $defaults = array(
         'name'    => null,
         'current' => null,
@@ -517,17 +517,17 @@ 
         ),
     );
 
-    $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'])));
     $attr  = '';
-    if ( ! empty( $args['options']['disabled'] ) ) {
+    if (!empty($args['options']['disabled'])) {
         $attr .= ' disabled="disabled"';
-    } elseif ( ! empty( $args['options']['readonly'] ) ) {
+    } elseif (!empty($args['options']['readonly'])) {
         $attr .= ' readonly';
     }
 
-    $output = '<input type="checkbox"' . $attr . ' name="' . esc_attr( $args['name'] ) . '" id="' . esc_attr( $args['name'] ) . '" class="' . esc_attr( $class ) . ' ' . esc_attr( $args['name'] ) . '" ' . checked( 1, $args['current'], false ) . ' />';
+    $output = '<input type="checkbox"' . $attr . ' name="' . esc_attr($args['name']) . '" id="' . esc_attr($args['name']) . '" class="' . esc_attr($class) . ' ' . esc_attr($args['name']) . '" ' . checked(1, $args['current'], false) . ' />';
 
     return $output;
 }
@@ -535,34 +535,34 @@ 
 /**
  * Displays a hidden field.
  */
-function getpaid_hidden_field( $name, $value ) {
-    echo "<input type='hidden' name='" . esc_attr( $name ) . "' value='" . esc_attr( $value ) . "' />";
+function getpaid_hidden_field($name, $value) {
+    echo "<input type='hidden' name='" . esc_attr($name) . "' value='" . esc_attr($value) . "' />";
 }
 
 /**
  * Displays a submit field.
  */
-function getpaid_submit_field( $value, $name = 'submit', $class = 'btn-primary' ) {
-    echo "<input type='submit' name='" . esc_attr( $name ) . "' value='" . esc_attr( $value ) . "' class='btn " . esc_attr( $class ) . "' />";
+function getpaid_submit_field($value, $name = 'submit', $class = 'btn-primary') {
+    echo "<input type='submit' name='" . esc_attr($name) . "' value='" . esc_attr($value) . "' class='btn " . esc_attr($class) . "' />";
 }
 
-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,
@@ -572,41 +572,41 @@ 
         '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_textarea( $args = array() ) {
+function wpinv_html_textarea($args = array()) {
     $defaults = array(
         'name'        => 'textarea',
         'value'       => null,
@@ -617,31 +617,31 @@ 
         'placeholder' => '',
     );
 
-    $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'] ) . '" placeholder="' . esc_attr( $args['placeholder'] ) . '" 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']) . '" placeholder="' . esc_attr($args['placeholder']) . '" id="' . wpinv_sanitize_key($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'        => '',
@@ -650,13 +650,13 @@ 
         '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;
@@ -667,44 +667,44 @@ 
  *
  * @param string $template the template that is currently being used.
  */
-function wpinv_template( $template ) {
+function wpinv_template($template) {
     global $post;
 
-    if ( ! is_admin() && ( is_single() || is_404() ) && ! empty( $post->ID ) && getpaid_is_invoice_post_type( get_post_type( $post->ID ) ) ) {
+    if (!is_admin() && (is_single() || is_404()) && !empty($post->ID) && getpaid_is_invoice_post_type(get_post_type($post->ID))) {
 
         // If the user can view this invoice, display it.
-        if ( wpinv_user_can_view_invoice( $post->ID ) ) {
+        if (wpinv_user_can_view_invoice($post->ID)) {
 
-            return wpinv_get_template_part( 'wpinv-invoice-print', false, false );
+            return wpinv_get_template_part('wpinv-invoice-print', false, false);
 
         // Else display an error message.
         } else {
 
-            return wpinv_get_template_part( 'wpinv-invalid-access', false, false );
+            return wpinv_get_template_part('wpinv-invalid-access', false, false);
 
         }
 }
 
     return $template;
 }
-add_filter( 'template_include', 'wpinv_template', 1000, 1 );
+add_filter('template_include', 'wpinv_template', 1000, 1);
 
 function wpinv_get_business_address() {
     $business_address   = wpinv_store_address();
-    $business_address   = ! empty( $business_address ) ? wp_kses_post( wpautop( $business_address ) ) : '';
+    $business_address   = !empty($business_address) ? wp_kses_post(wpautop($business_address)) : '';
 
     $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);
 }
 
 /**
  * Displays the company address.
  */
 function wpinv_display_from_address() {
-    wpinv_get_template( 'invoice/company-address.php' );
+    wpinv_get_template('invoice/company-address.php');
 }
-add_action( 'getpaid_invoice_details_left', 'wpinv_display_from_address', 10 );
+add_action('getpaid_invoice_details_left', 'wpinv_display_from_address', 10);
 
 /**
  * Generates a watermark text for an invoice.
@@ -712,9 +712,9 @@ 
  * @param WPInv_Invoice $invoice
  * @return string
  */
-function wpinv_watermark( $invoice ) {
-    $watermark = wpinv_get_watermark( $invoice );
-    return apply_filters( 'wpinv_get_watermark', $watermark, $invoice );
+function wpinv_watermark($invoice) {
+    $watermark = wpinv_get_watermark($invoice);
+    return apply_filters('wpinv_get_watermark', $watermark, $invoice);
 }
 
 /**
@@ -723,37 +723,37 @@ 
  * @param WPInv_Invoice $invoice
  * @return string
  */
-function wpinv_get_watermark( $invoice ) {
+function wpinv_get_watermark($invoice) {
     return $invoice->get_status_nicename();
 }
 
 /**
  * @deprecated
  */
-function wpinv_display_invoice_details( $invoice ) {
-    return getpaid_invoice_meta( $invoice );
+function wpinv_display_invoice_details($invoice) {
+    return getpaid_invoice_meta($invoice);
 }
 
 /**
  * Displays invoice meta.
  */
-function getpaid_invoice_meta( $invoice ) {
+function getpaid_invoice_meta($invoice) {
 
-    $invoice = new WPInv_Invoice( $invoice );
+    $invoice = new WPInv_Invoice($invoice);
 
     // Ensure that we have an invoice.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return;
     }
 
     // Get the invoice meta.
-    $meta = getpaid_get_invoice_meta( $invoice );
+    $meta = getpaid_get_invoice_meta($invoice);
 
     // Display the meta.
-    wpinv_get_template( 'invoice/invoice-meta.php', compact( 'invoice', 'meta' ) );
+    wpinv_get_template('invoice/invoice-meta.php', compact('invoice', 'meta'));
 
 }
-add_action( 'getpaid_invoice_details_right', 'getpaid_invoice_meta', 10 );
+add_action('getpaid_invoice_details_right', 'getpaid_invoice_meta', 10);
 
 /**
  * Retrieves the address markup to use on Invoices.
@@ -765,29 +765,29 @@ 
  * @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;
@@ -799,118 +799,118 @@ 
  *
  * @param WPInv_Invoice $invoice
  */
-function wpinv_display_to_address( $invoice = 0 ) {
-    if ( ! empty( $invoice ) ) {
-        wpinv_get_template( 'invoice/billing-address.php', compact( 'invoice' ) );
+function wpinv_display_to_address($invoice = 0) {
+    if (!empty($invoice)) {
+        wpinv_get_template('invoice/billing-address.php', compact('invoice'));
     }
 }
-add_action( 'getpaid_invoice_details_left', 'wpinv_display_to_address', 40 );
+add_action('getpaid_invoice_details_left', 'wpinv_display_to_address', 40);
 
 
 /**
  * Displays invoice line items.
  */
-function wpinv_display_line_items( $invoice_id = 0 ) {
+function wpinv_display_line_items($invoice_id = 0) {
 
     // Prepare the invoice.
-    $invoice = new WPInv_Invoice( $invoice_id );
+    $invoice = new WPInv_Invoice($invoice_id);
 
     // Abort if there is no invoice.
-    if ( 0 == $invoice->get_id() ) {
+    if (0 == $invoice->get_id()) {
         return;
     }
 
     // Line item columns.
-    $columns = getpaid_invoice_item_columns( $invoice );
-    $columns = apply_filters( 'getpaid_invoice_line_items_table_columns', $columns, $invoice );
+    $columns = getpaid_invoice_item_columns($invoice);
+    $columns = apply_filters('getpaid_invoice_line_items_table_columns', $columns, $invoice);
 
-    wpinv_get_template( 'invoice/line-items.php', compact( 'invoice', 'columns' ) );
+    wpinv_get_template('invoice/line-items.php', compact('invoice', 'columns'));
 }
-add_action( 'getpaid_invoice_line_items', 'wpinv_display_line_items', 10 );
+add_action('getpaid_invoice_line_items', 'wpinv_display_line_items', 10);
 
 /**
  * Displays invoice subscriptions.
  *
  * @param WPInv_Invoice $invoice
  */
-function getpaid_display_invoice_subscriptions( $invoice ) {
+function getpaid_display_invoice_subscriptions($invoice) {
 
     // Subscriptions.
-	$subscriptions = getpaid_get_invoice_subscriptions( $invoice );
+	$subscriptions = getpaid_get_invoice_subscriptions($invoice);
 
-    if ( empty( $subscriptions ) || ! $invoice->is_recurring() ) {
+    if (empty($subscriptions) || !$invoice->is_recurring()) {
         return;
     }
 
-    $main_subscription = getpaid_get_invoice_subscription( $invoice );
+    $main_subscription = getpaid_get_invoice_subscription($invoice);
 
     // Display related subscriptions.
-    if ( is_array( $subscriptions ) ) {
-        printf( '<h2 class="mt-5 mb-1 h4">%s</h2>', esc_html__( 'Related Subscriptions', 'invoicing' ) );
-        getpaid_admin_subscription_related_subscriptions_metabox( $main_subscription, false );
+    if (is_array($subscriptions)) {
+        printf('<h2 class="mt-5 mb-1 h4">%s</h2>', esc_html__('Related Subscriptions', 'invoicing'));
+        getpaid_admin_subscription_related_subscriptions_metabox($main_subscription, false);
     }
 
-    if ( $main_subscription->get_total_payments() > 1 ) {
-        printf( '<h2 class="mt-5 mb-1 h4">%s</h2>', esc_html__( 'Related Invoices', 'invoicing' ) );
-        getpaid_admin_subscription_invoice_details_metabox( $main_subscription, false );
+    if ($main_subscription->get_total_payments() > 1) {
+        printf('<h2 class="mt-5 mb-1 h4">%s</h2>', esc_html__('Related Invoices', 'invoicing'));
+        getpaid_admin_subscription_invoice_details_metabox($main_subscription, false);
     }
 
 }
-add_action( 'getpaid_invoice_line_items', 'getpaid_display_invoice_subscriptions', 55 );
-add_action( 'wpinv_receipt_end', 'getpaid_display_invoice_subscriptions', 11 );
+add_action('getpaid_invoice_line_items', 'getpaid_display_invoice_subscriptions', 55);
+add_action('wpinv_receipt_end', 'getpaid_display_invoice_subscriptions', 11);
 
 /**
  * Displays invoice notices on invoices.
  */
 function wpinv_display_invoice_notice() {
 
-    $label  = wpinv_get_option( 'vat_invoice_notice_label' );
-    $notice = wpinv_get_option( 'vat_invoice_notice' );
+    $label  = wpinv_get_option('vat_invoice_notice_label');
+    $notice = wpinv_get_option('vat_invoice_notice');
 
-    if ( empty( $label ) && empty( $notice ) ) {
+    if (empty($label) && empty($notice)) {
         return;
     }
 
     echo '<div class="mt-4 mb-4 wpinv-vat-notice">';
 
-    if ( ! empty( $label ) ) {
-        echo "<h5>" . esc_html( $label ) . "</h5>";
+    if (!empty($label)) {
+        echo "<h5>" . esc_html($label) . "</h5>";
     }
 
-    if ( ! empty( $notice ) ) {
-        echo '<small class="form-text text-muted">' . wp_kses_post( wpautop( wptexturize( $notice ) ) ) . '</small>';
+    if (!empty($notice)) {
+        echo '<small class="form-text text-muted">' . wp_kses_post(wpautop(wptexturize($notice))) . '</small>';
     }
 
     echo '</div>';
 }
-add_action( 'getpaid_invoice_line_items', 'wpinv_display_invoice_notice', 100 );
+add_action('getpaid_invoice_line_items', 'wpinv_display_invoice_notice', 100);
 
 /**
  * @param WPInv_Invoice $invoice
  */
-function wpinv_display_invoice_notes( $invoice ) {
+function wpinv_display_invoice_notes($invoice) {
 
     // Retrieve the notes.
-    $notes = wpinv_get_invoice_notes( $invoice->get_id(), 'customer' );
+    $notes = wpinv_get_invoice_notes($invoice->get_id(), 'customer');
 
     // Abort if we have non.
-    if ( empty( $notes ) ) {
+    if (empty($notes)) {
         return;
     }
 
     // Echo the note.
     echo '<div class="getpaid-invoice-notes-wrapper position-relative my-4">';
-    echo '<h2 class="getpaid-invoice-notes-title mb-1 p-0 h4">' . esc_html__( 'Notes', 'invoicing' ) . '</h2>';
+    echo '<h2 class="getpaid-invoice-notes-title mb-1 p-0 h4">' . esc_html__('Notes', 'invoicing') . '</h2>';
     echo '<ul class="getpaid-invoice-notes text-break overflow-auto list-unstyled p-0 m-0">';
 
-    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( 'getpaid_invoice_line_items', 'wpinv_display_invoice_notes', 60 );
+add_action('getpaid_invoice_line_items', 'wpinv_display_invoice_notes', 60);
 
 /**
  * Loads scripts on our invoice templates.
@@ -918,37 +918,37 @@ 
 function wpinv_display_style() {
 
     // Make sure that all scripts have been loaded.
-    if ( ! did_action( 'wp_enqueue_scripts' ) ) {
-        do_action( 'wp_enqueue_scripts' );
+    if (!did_action('wp_enqueue_scripts')) {
+        do_action('wp_enqueue_scripts');
     }
 
     // Add global styles.
-    if ( wp_is_block_theme() ) {
-        wp_print_styles( 'global-styles' );
+    if (wp_is_block_theme()) {
+        wp_print_styles('global-styles');
     }
 
     // Register the invoices style.
-    wp_register_style( 'wpinv-single-style', WPINV_PLUGIN_URL . 'assets/css/invoice.css', array(), filemtime( WPINV_PLUGIN_DIR . 'assets/css/invoice.css' ) );
+    wp_register_style('wpinv-single-style', WPINV_PLUGIN_URL . 'assets/css/invoice.css', array(), filemtime(WPINV_PLUGIN_DIR . 'assets/css/invoice.css'));
 
     // Load required styles
-    wp_print_styles( 'wpinv-single-style' );
-    wp_print_styles( 'ayecode-ui' );
+    wp_print_styles('wpinv-single-style');
+    wp_print_styles('ayecode-ui');
 
     // Maybe load custom css.
-    $custom_css = wpinv_get_option( 'template_custom_css' );
+    $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 wp_kses_post( $custom_css );
+        echo wp_kses_post($custom_css);
         echo '</style>';
     }
 
     wp_site_icon();
 }
-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');
 
 
 /**
@@ -960,41 +960,41 @@ 
     // Retrieve the current invoice.
     $invoice_id = getpaid_get_current_invoice_id();
 
-    if ( empty( $invoice_id ) ) {
+    if (empty($invoice_id)) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'Invalid invoice', 'invoicing' ),
+                'content' => __('Invalid invoice', 'invoicing'),
             )
         );
 
     }
 
     // Can the user view this invoice?
-    if ( ! wpinv_user_can_view_invoice( $invoice_id ) ) {
+    if (!wpinv_user_can_view_invoice($invoice_id)) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'You are not allowed to view this invoice', 'invoicing' ),
+                'content' => __('You are not allowed to view this invoice', 'invoicing'),
             )
         );
 
     }
 
     // Ensure that it is not yet paid for.
-    $invoice = new WPInv_Invoice( $invoice_id );
+    $invoice = new WPInv_Invoice($invoice_id);
 
     // Maybe mark it as viewed.
-    getpaid_maybe_mark_invoice_as_viewed( $invoice );
+    getpaid_maybe_mark_invoice_as_viewed($invoice);
 
-    if ( $invoice->is_paid() ) {
+    if ($invoice->is_paid()) {
 
         return aui()->alert(
             array(
                 'type'    => 'success',
-                'content' => __( 'This invoice has already been paid.', 'invoicing' ),
+                'content' => __('This invoice has already been paid.', 'invoicing'),
             )
         );
 
@@ -1004,15 +1004,15 @@ 
     $wpi_checkout_id = $invoice_id;
 
     // Retrieve appropriate payment form.
-    $payment_form = new GetPaid_Payment_Form( wpinv_translate_post_id( $invoice->get_meta( 'force_payment_form' ) ) );
-    $payment_form = $payment_form->exists() ? $payment_form : new GetPaid_Payment_Form( wpinv_get_default_payment_form() );
+    $payment_form = new GetPaid_Payment_Form(wpinv_translate_post_id($invoice->get_meta('force_payment_form')));
+    $payment_form = $payment_form->exists() ? $payment_form : new GetPaid_Payment_Form(wpinv_get_default_payment_form());
 
-    if ( ! $payment_form->exists() ) {
+    if (!$payment_form->exists()) {
 
         return aui()->alert(
             array(
                 'type'    => 'warning',
-                'content' => __( 'Error loading the payment form', 'invoicing' ),
+                'content' => __('Error loading the payment form', 'invoicing'),
             )
         );
 
@@ -1021,29 +1021,29 @@ 
     // Set the invoice.
     $payment_form->invoice = $invoice;
 
-    if ( ! $payment_form->is_default() ) {
+    if (!$payment_form->is_default()) {
 
         $items    = array();
         $item_ids = array();
 
-        foreach ( $invoice->get_items() as $item ) {
-            if ( ! in_array( $item->get_id(), $item_ids ) ) {
+        foreach ($invoice->get_items() as $item) {
+            if (!in_array($item->get_id(), $item_ids)) {
                 $item_ids[] = $item->get_id();
                 $items[]    = $item;
             }
         }
 
-        foreach ( $payment_form->get_items() as $item ) {
-            if ( ! in_array( $item->get_id(), $item_ids ) ) {
+        foreach ($payment_form->get_items() as $item) {
+            if (!in_array($item->get_id(), $item_ids)) {
                 $item_ids[] = $item->get_id();
                 $items[]    = $item;
             }
         }
 
-        $payment_form->set_items( $items );
+        $payment_form->set_items($items);
 
     } else {
-        $payment_form->set_items( $invoice->get_items() );
+        $payment_form->set_items($invoice->get_items());
     }
 
     // Generate the html.
@@ -1052,7 +1052,7 @@ 
 }
 
 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>');
 }
 
 /**
@@ -1070,76 +1070,76 @@ 
         true
     );
 }
-add_action( 'wpinv_cart_empty', 'wpinv_empty_checkout_cart' );
+add_action('wpinv_cart_empty', 'wpinv_empty_checkout_cart');
 
 /**
  * Filters the receipt page.
  */
-function wpinv_filter_success_page_content( $content ) {
+function wpinv_filter_success_page_content($content) {
 
     // Maybe abort early.
-    if ( is_admin() || ! is_singular() || ! in_the_loop() || ! is_main_query() || is_preview() ) {
+    if (is_admin() || !is_singular() || !in_the_loop() || !is_main_query() || is_preview()) {
         return $content;
     }
 
     // Ensure this is our page.
-    if ( isset( $_GET['payment-confirm'] ) && wpinv_is_success_page() ) {
+    if (isset($_GET['payment-confirm']) && wpinv_is_success_page()) {
 
-        $gateway = sanitize_text_field( $_GET['payment-confirm'] );
-        return apply_filters( "wpinv_payment_confirm_$gateway", $content );
+        $gateway = sanitize_text_field($_GET['payment-confirm']);
+        return apply_filters("wpinv_payment_confirm_$gateway", $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_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_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( $note_classes ); ?> mb-2">
+    <li rel="<?php echo absint($note->comment_ID); ?>" class="<?php echo esc_attr($note_classes); ?> mb-2">
         <div class="note_content">
 
-            <?php echo wp_kses_post( wptexturize( $note->comment_content ) ); ?>
+            <?php echo wp_kses_post(wptexturize($note->comment_content)); ?>
 
-            <?php if ( ! is_admin() ) : ?>
+            <?php if (!is_admin()) : ?>
                 <em class="small form-text text-muted mt-0">
                     <?php
                         printf(
-                            esc_html__( '%1$s - %2$s at %3$s', 'invoicing' ),
-                            esc_html( $note->comment_author ),
-                            esc_html( getpaid_format_date_value( $note->comment_date ) ),
-                            esc_html( date_i18n( get_option( 'time_format' ), strtotime( $note->comment_date ) ) )
+                            esc_html__('%1$s - %2$s at %3$s', 'invoicing'),
+                            esc_html($note->comment_author),
+                            esc_html(getpaid_format_date_value($note->comment_date)),
+                            esc_html(date_i18n(get_option('time_format'), strtotime($note->comment_date)))
                         );
                     ?>
                 </em>
@@ -1147,21 +1147,21 @@ 
 
         </div>
 
-        <?php if ( is_admin() ) : ?>
+        <?php if (is_admin()) : ?>
 
             <p class="meta px-4 py-2">
-                <abbr class="exact-date" title="<?php echo esc_attr( $note->comment_date ); ?>">
+                <abbr class="exact-date" title="<?php echo esc_attr($note->comment_date); ?>">
                     <?php
                         printf(
-                            esc_html__( '%1$s - %2$s at %3$s', 'invoicing' ),
-                            esc_html( $note->comment_author ),
-                            esc_html( getpaid_format_date_value( $note->comment_date ) ),
-                            esc_html( date_i18n( get_option( 'time_format' ), strtotime( $note->comment_date ) ) )
+                            esc_html__('%1$s - %2$s at %3$s', 'invoicing'),
+                            esc_html($note->comment_author),
+                            esc_html(getpaid_format_date_value($note->comment_date)),
+                            esc_html(date_i18n(get_option('time_format'), strtotime($note->comment_date)))
                         );
                     ?>
                 </abbr>&nbsp;&nbsp;
-                <?php if ( $note->comment_author !== 'System' && wpinv_current_user_can_manage_invoicing() ) { ?>
-                    <a href="#" class="delete_note" data-id="<?php echo esc_attr( $note->comment_ID ); ?>"><?php esc_html_e( 'Delete note', 'invoicing' ); ?></a>
+                <?php if ($note->comment_author !== 'System' && wpinv_current_user_can_manage_invoicing()) { ?>
+                    <a href="#" class="delete_note" data-id="<?php echo esc_attr($note->comment_ID); ?>"><?php esc_html_e('Delete note', 'invoicing'); ?></a>
                 <?php } ?>
             </p>
 
@@ -1170,10 +1170,10 @@ 
     </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 ) {
-        echo wp_kses_post( $note_content );
+    if ($echo) {
+        echo wp_kses_post($note_content);
     } else {
         return $note_content;
     }
@@ -1186,43 +1186,43 @@ 
  * @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( $privacy_text ) );
+    return wp_kses_post(wpautop($privacy_text));
 }
 
 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', 'wpi_payment_form' );
+    $post_types = array('wpi_discount', 'wpi_invoice', 'wpi_item', 'wpi_payment_form');
 
-    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);
 }
 
 /**
@@ -1230,10 +1230,10 @@ 
  *
  * @param GetPaid_Payment_Form $form
  */
-function getpaid_display_payment_form( $form ) {
+function getpaid_display_payment_form($form) {
 
-    if ( is_numeric( $form ) ) {
-        $form = new GetPaid_Payment_Form( wpinv_translate_post_id( $form ) );
+    if (is_numeric($form)) {
+        $form = new GetPaid_Payment_Form(wpinv_translate_post_id($form));
     }
 
     $form->display();
@@ -1243,61 +1243,61 @@ 
 /**
  * Helper function to display a item payment form on the frontend.
  */
-function getpaid_display_item_payment_form( $items ) {
+function getpaid_display_item_payment_form($items) {
 
-    $form = new GetPaid_Payment_Form( wpinv_get_default_payment_form() );
-    $form->set_items( $items );
+    $form = new GetPaid_Payment_Form(wpinv_get_default_payment_form());
+    $form->set_items($items);
 
-    if ( 0 == count( $form->get_items() ) ) {
+    if (0 == count($form->get_items())) {
         aui()->alert(
 			array(
 				'type'    => 'warning',
-				'content' => __( 'No published items found', 'invoicing' ),
+				'content' => __('No published items found', 'invoicing'),
             ),
             true
         );
         return;
     }
 
-    $extra_items     = esc_attr( getpaid_convert_items_to_string( $items ) );
-    $extra_items_key = md5( NONCE_KEY . AUTH_KEY . $extra_items );
+    $extra_items     = esc_attr(getpaid_convert_items_to_string($items));
+    $extra_items_key = md5(NONCE_KEY . AUTH_KEY . $extra_items);
     $extra_items     = "<input type='hidden' name='getpaid-form-items' value='$extra_items' />";
     $extra_items    .= "<input type='hidden' name='getpaid-form-items-key' value='$extra_items_key' />";
 
-    $form->display( $extra_items );
+    $form->display($extra_items);
 }
 
 /**
  * Helper function to display an invoice payment form on the frontend.
  */
-function getpaid_display_invoice_payment_form( $invoice_id ) {
+function getpaid_display_invoice_payment_form($invoice_id) {
 
-    $invoice = wpinv_get_invoice( $invoice_id );
+    $invoice = wpinv_get_invoice($invoice_id);
 
-    if ( empty( $invoice ) ) {
+    if (empty($invoice)) {
 		aui()->alert(
 			array(
 				'type'    => 'warning',
-				'content' => __( 'Invoice not found', 'invoicing' ),
+				'content' => __('Invoice not found', 'invoicing'),
             ),
             true
         );
         return;
     }
 
-    if ( $invoice->is_paid() ) {
+    if ($invoice->is_paid()) {
 		aui()->alert(
 			array(
 				'type'    => 'warning',
-				'content' => __( 'Invoice has already been paid', 'invoicing' ),
+				'content' => __('Invoice has already been paid', 'invoicing'),
             ),
             true
         );
         return;
     }
 
-    $form = new GetPaid_Payment_Form( wpinv_get_default_payment_form() );
-    $form->set_items( $invoice->get_items() );
+    $form = new GetPaid_Payment_Form(wpinv_get_default_payment_form());
+    $form->set_items($invoice->get_items());
 
     $form->display();
 }
@@ -1305,24 +1305,24 @@ 
 /**
  * Helper function to convert item string to array.
  */
-function getpaid_convert_items_to_array( $items ) {
-    $items    = array_filter( array_map( 'trim', explode( ',', $items ) ) );
+function getpaid_convert_items_to_array($items) {
+    $items    = array_filter(array_map('trim', explode(',', $items)));
     $prepared = array();
 
-    foreach ( $items as $item ) {
-        $data = array_map( 'trim', explode( '|', $item ) );
+    foreach ($items as $item) {
+        $data = array_map('trim', explode('|', $item));
 
-        if ( empty( $data[0] ) || ! is_numeric( $data[0] ) ) {
+        if (empty($data[0]) || !is_numeric($data[0])) {
             continue;
         }
 
         $quantity = 1;
-        if ( isset( $data[1] ) && is_numeric( $data[1] ) ) {
+        if (isset($data[1]) && is_numeric($data[1])) {
             $quantity = (float) $data[1];
         }
 
         // WPML support.
-        $prepared[ wpinv_translate_post_id( $data[0] ) ] = $quantity;
+        $prepared[wpinv_translate_post_id($data[0])] = $quantity;
 
     }
 
@@ -1332,13 +1332,13 @@ 
 /**
  * Helper function to convert item array to string.
  */
-function getpaid_convert_items_to_string( $items ) {
+function getpaid_convert_items_to_string($items) {
     $prepared = array();
 
-    foreach ( $items as $item => $quantity ) {
+    foreach ($items as $item => $quantity) {
         $prepared[] = "$item|$quantity";
     }
-    return implode( ',', $prepared );
+    return implode(',', $prepared);
 }
 
 /**
@@ -1346,21 +1346,21 @@ 
  *
  * Provide a label and one of $form, $items or $invoice.
  */
-function getpaid_get_payment_button( $label, $form = null, $items = null, $invoice = null ) {
-    $label = sanitize_text_field( $label );
+function getpaid_get_payment_button($label, $form = null, $items = null, $invoice = null) {
+    $label = sanitize_text_field($label);
 
-    if ( ! empty( $form ) ) {
-        $form  = esc_attr( $form );
+    if (!empty($form)) {
+        $form = esc_attr($form);
         return "<button class='btn btn-primary getpaid-payment-button' type='button' data-form='$form'>$label</button>";
     }
 
-	if ( ! empty( $items ) ) {
-        $items  = esc_attr( $items );
+	if (!empty($items)) {
+        $items = esc_attr($items);
         return "<button class='btn btn-primary getpaid-payment-button' type='button' data-item='$items'>$label</button>";
     }
 
-    if ( ! empty( $invoice ) ) {
-        $invoice  = esc_attr( $invoice );
+    if (!empty($invoice)) {
+        $invoice = esc_attr($invoice);
         return "<button class='btn btn-primary getpaid-payment-button' type='button' data-invoice='$invoice'>$label</button>";
     }
 
@@ -1371,17 +1371,17 @@ 
  *
  * @param WPInv_Invoice $invoice
  */
-function getpaid_the_invoice_description( $invoice ) {
+function getpaid_the_invoice_description($invoice) {
     $description = $invoice->get_description();
 
-    if ( empty( $description ) ) {
+    if (empty($description)) {
         return;
     }
 
-    echo "<small class='getpaid-invoice-description text-dark pl-2 ps-2 form-text' style='margin-bottom:20px;border-left:2px solid #2196F3;display:block;padding-left:.5rem'><em>" . wp_kses_post( wpautop( $description ) ) . "</em></small>";
+    echo "<small class='getpaid-invoice-description text-dark pl-2 ps-2 form-text' style='margin-bottom:20px;border-left:2px solid #2196F3;display:block;padding-left:.5rem'><em>" . wp_kses_post(wpautop($description)) . "</em></small>";
 }
-add_action( 'getpaid_invoice_line_items', 'getpaid_the_invoice_description', 100 );
-add_action( 'wpinv_email_billing_details', 'getpaid_the_invoice_description', 100 );
+add_action('getpaid_invoice_line_items', 'getpaid_the_invoice_description', 100);
+add_action('wpinv_email_billing_details', 'getpaid_the_invoice_description', 100);
 
 /**
  * Render element on a form.
@@ -1389,86 +1389,86 @@ 
  * @param array $element
  * @param GetPaid_Payment_Form $form
  */
-function getpaid_payment_form_element( $element, $form ) {
-    $translatable = array( 'text', 'label', 'input_label', 'button_label', 'description' );
+function getpaid_payment_form_element($element, $form) {
+    $translatable = array('text', 'label', 'input_label', 'button_label', 'description');
 
-    foreach ( $translatable as $string ) {
-        if ( ! empty( $element[ $string ] ) && is_scalar( $element[ $string ] ) ) {
-            $element[ $string ] = __( $element[ $string ], 'invoicing' );
+    foreach ($translatable as $string) {
+        if (!empty($element[$string]) && is_scalar($element[$string])) {
+            $element[$string] = __($element[$string], 'invoicing');
         }
     }
 
     // Set up the args.
-    $element_type    = trim( $element['type'] );
+    $element_type    = trim($element['type']);
     $element['form'] = $form;
-    extract( $element ); // phpcs:ignore WordPress.PHP.DontExtract.extract_extract
+    extract($element); // phpcs:ignore WordPress.PHP.DontExtract.extract_extract
 
     // Try to locate the appropriate template.
-    $located = wpinv_locate_template( "payment-forms/elements/$element_type.php" );
+    $located = wpinv_locate_template("payment-forms/elements/$element_type.php");
 
     // Abort if this is not our element.
-    if ( empty( $located ) || ! file_exists( $located ) ) {
+    if (empty($located) || !file_exists($located)) {
         return;
     }
 
     // Generate the class and id of the element.
-    $wrapper_class = 'getpaid-payment-form-element-' . trim( esc_attr( $element_type ) );
-    $id            = isset( $id ) ? $id : uniqid( 'gp' );
+    $wrapper_class = 'getpaid-payment-form-element-' . trim(esc_attr($element_type));
+    $id            = isset($id) ? $id : uniqid('gp');
 
-    $element_id    = ! empty( $element['label'] ) ? sanitize_title( $element['label'] ) : $id;
-    $query_value   = isset( $_GET[ $element_id ] ) ? wpinv_clean( urldecode_deep( $_GET[ $element_id ] ) ) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+    $element_id    = !empty($element['label']) ? sanitize_title($element['label']) : $id;
+    $query_value   = isset($_GET[$element_id]) ? wpinv_clean(urldecode_deep($_GET[$element_id])) : ''; // phpcs:ignore WordPress.Security.NonceVerification.Recommended
 
     $element_id    = 'getpaid-' . $element_id;
-    if ( ! empty( $GLOBALS['rendered_getpaid_forms'][ $form->get_id() ] ) ) {
-        $element_id = $element_id . '-' . $GLOBALS['rendered_getpaid_forms'][ $form->get_id() ];
+    if (!empty($GLOBALS['rendered_getpaid_forms'][$form->get_id()])) {
+        $element_id = $element_id . '-' . $GLOBALS['rendered_getpaid_forms'][$form->get_id()];
     }
 
     // Echo the opening wrapper.
-    echo "<div class='getpaid-payment-form-element " . esc_attr( $wrapper_class ) . "'>";
+    echo "<div class='getpaid-payment-form-element " . esc_attr($wrapper_class) . "'>";
 
     // Fires before displaying a given element type's content.
-    do_action( "getpaid_before_payment_form_{$element_type}_element", $element, $form );
+    do_action("getpaid_before_payment_form_{$element_type}_element", $element, $form);
 
     // Include the template for the element.
     include $located;
 
     // Fires after displaying a given element type's content.
-    do_action( "getpaid_payment_form_{$element_type}_element", $element, $form );
+    do_action("getpaid_payment_form_{$element_type}_element", $element, $form);
 
     // Echo the closing wrapper.
     echo '</div>';
 }
-add_action( 'getpaid_payment_form_element', 'getpaid_payment_form_element', 10, 2 );
+add_action('getpaid_payment_form_element', 'getpaid_payment_form_element', 10, 2);
 
 /**
  * Render an element's edit page.
  *
  * @param WP_Post $post
  */
-function getpaid_payment_form_edit_element_template( $post ) {
+function getpaid_payment_form_edit_element_template($post) {
 
     // Retrieve all elements.
-    $all_elements = wp_list_pluck( wpinv_get_data( 'payment-form-elements' ), 'type' );
+    $all_elements = wp_list_pluck(wpinv_get_data('payment-form-elements'), 'type');
 
-    foreach ( $all_elements as $element ) {
+    foreach ($all_elements as $element) {
 
         // Try to locate the appropriate template.
-        $element = esc_attr( sanitize_key( $element ) );
-        $located = wpinv_locate_template( "payment-forms-admin/edit/$element.php" );
+        $element = esc_attr(sanitize_key($element));
+        $located = wpinv_locate_template("payment-forms-admin/edit/$element.php");
 
         // Continue if this is not our element.
-        if ( empty( $located ) || ! file_exists( $located ) ) {
+        if (empty($located) || !file_exists($located)) {
             continue;
         }
 
         // Include the template for the element.
-        echo "<div v-if=\"active_form_element.type=='" . esc_attr( $element ) . "'\">";
+        echo "<div v-if=\"active_form_element.type=='" . esc_attr($element) . "'\">";
         include $located;
         echo '</div>';
     }
 
 }
-add_action( 'getpaid_payment_form_edit_element_template', 'getpaid_payment_form_edit_element_template' );
+add_action('getpaid_payment_form_edit_element_template', 'getpaid_payment_form_edit_element_template');
 
 /**
  * Render an element's preview.
@@ -1477,27 +1477,27 @@ 
 function getpaid_payment_form_render_element_preview_template() {
 
     // Retrieve all elements.
-    $all_elements = wp_list_pluck( wpinv_get_data( 'payment-form-elements' ), 'type' );
+    $all_elements = wp_list_pluck(wpinv_get_data('payment-form-elements'), 'type');
 
-    foreach ( $all_elements as $element ) {
+    foreach ($all_elements as $element) {
 
         // Try to locate the appropriate template.
-        $element = sanitize_key( $element );
-        $located = wpinv_locate_template( "payment-forms-admin/previews/$element.php" );
+        $element = sanitize_key($element);
+        $located = wpinv_locate_template("payment-forms-admin/previews/$element.php");
 
         // Continue if this is not our element.
-        if ( empty( $located ) || ! file_exists( $located ) ) {
+        if (empty($located) || !file_exists($located)) {
             continue;
         }
 
         // Include the template for the element.
-        echo "<div v-if=\"form_element.type=='" . esc_html( $element ) . "'\">";
+        echo "<div v-if=\"form_element.type=='" . esc_html($element) . "'\">";
         include $located;
         echo '</div>';
     }
 
 }
-add_action( 'wpinv_payment_form_render_element_template', 'getpaid_payment_form_render_element_preview_template' );
+add_action('wpinv_payment_form_render_element_template', 'getpaid_payment_form_render_element_preview_template');
 
 /**
  * Shows a list of gateways that support recurring payments.
@@ -1505,17 +1505,17 @@ 
 function wpinv_get_recurring_gateways_text() {
     $gateways = array();
 
-    foreach ( wpinv_get_payment_gateways() as $key => $gateway ) {
-        if ( wpinv_gateway_support_subscription( $key ) ) {
-            $gateways[] = sanitize_text_field( $gateway['admin_label'] );
+    foreach (wpinv_get_payment_gateways() as $key => $gateway) {
+        if (wpinv_gateway_support_subscription($key)) {
+            $gateways[] = sanitize_text_field($gateway['admin_label']);
         }
     }
 
-    if ( empty( $gateways ) ) {
-        return "<span class='form-text text-danger'>" . __( 'No active gateways support subscription payments.', 'invoicing' ) . '</span>';
+    if (empty($gateways)) {
+        return "<span class='form-text text-danger'>" . __('No active gateways support subscription payments.', 'invoicing') . '</span>';
     }
 
-    return "<span class='form-text text-muted'>" . wp_sprintf( __( 'Subscription payments only supported by: %s', 'invoicing' ), implode( ', ', $gateways ) ) . '</span>';
+    return "<span class='form-text text-muted'>" . wp_sprintf(__('Subscription payments only supported by: %s', 'invoicing'), implode(', ', $gateways)) . '</span>';
 
 }
 
@@ -1525,7 +1525,7 @@ 
  * @return GetPaid_Template
  */
 function getpaid_template() {
-    return getpaid()->get( 'template' );
+    return getpaid()->get('template');
 }
 
 /**
@@ -1534,8 +1534,8 @@ 
  * @param array args
  * @return string
  */
-function getpaid_paginate_links( $args ) {
-    return str_replace( 'page-link dots', 'page-link text-dark', aui()->pagination( $args ) );
+function getpaid_paginate_links($args) {
+    return str_replace('page-link dots', 'page-link text-dark', aui()->pagination($args));
 }
 
 /**
@@ -1545,22 +1545,22 @@ 
  * @param string state
  * @return string
  */
-function getpaid_get_states_select_markup( $country, $state, $placeholder, $label, $help_text, $required = false, $wrapper_class = 'col-12', $field_name = 'wpinv_state', $echo = false ) {
+function getpaid_get_states_select_markup($country, $state, $placeholder, $label, $help_text, $required = false, $wrapper_class = 'col-12', $field_name = 'wpinv_state', $echo = false) {
 
-    $states = wpinv_get_country_states( $country );
-    $uniqid = uniqid( '_' );
+    $states = wpinv_get_country_states($country);
+    $uniqid = uniqid('_');
 
-    if ( ! empty( $states ) ) {
+    if (!empty($states)) {
 
         return aui()->select(
             array(
 				'options'          => $states,
-				'name'             => esc_attr( $field_name ),
-				'id'               => sanitize_html_class( $field_name ) . $uniqid,
-				'value'            => sanitize_text_field( $state ),
+				'name'             => esc_attr($field_name),
+				'id'               => sanitize_html_class($field_name) . $uniqid,
+				'value'            => sanitize_text_field($state),
 				'placeholder'      => $placeholder,
 				'required'         => $required,
-				'label'            => wp_kses_post( $label ),
+				'label'            => wp_kses_post($label),
 				'label_type'       => 'vertical',
 				'help_text'        => $help_text,
 				'class'            => 'getpaid-address-field wpinv_state',
@@ -1577,14 +1577,14 @@ 
 
     return aui()->input(
         array(
-            'name'             => esc_attr( $field_name ),
-            'id'               => sanitize_html_class( $field_name ) . $uniqid,
+            'name'             => esc_attr($field_name),
+            'id'               => sanitize_html_class($field_name) . $uniqid,
             'placeholder'      => $placeholder,
             'required'         => $required,
-            'label'            => wp_kses_post( $label ),
+            'label'            => wp_kses_post($label),
             'label_type'       => 'vertical',
             'help_text'        => $help_text,
-            'value'            => sanitize_text_field( $state ),
+            'value'            => sanitize_text_field($state),
             'class'            => 'getpaid-address-field wpinv_state',
             'wrap_class'       => "$wrapper_class getpaid-address-field-wrapper__state",
             'label_class'      => 'getpaid-address-field-label getpaid-address-field-label__state',
@@ -1603,16 +1603,16 @@ 
  * @param array $element
  * @return string
  */
-function getpaid_get_form_element_grid_class( $element ) {
+function getpaid_get_form_element_grid_class($element) {
 
     $class = 'col-12';
-    $width = empty( $element['grid_width'] ) ? 'full' : $element['grid_width'];
+    $width = empty($element['grid_width']) ? 'full' : $element['grid_width'];
 
-    if ( $width == 'half' ) {
+    if ($width == 'half') {
         $class .= ' col-md-6';
     }
 
-    if ( $width == 'third' ) {
+    if ($width == 'third') {
         $class .= ' col-md-4';
     }
 
@@ -1627,15 +1627,15 @@ 
  *
  * @return string
  */
-function getpaid_embed_url( $payment_form = false, $items = false ) {
+function getpaid_embed_url($payment_form = false, $items = false) {
 
     return add_query_arg(
         array(
             'getpaid_embed' => 1,
-            'form'          => $payment_form ? absint( $payment_form ) : false,
-            'item'          => $items ? urlencode( $items ) : false,
+            'form'          => $payment_form ? absint($payment_form) : false,
+            'item'          => $items ? urlencode($items) : false,
         ),
-        home_url( 'index.php' )
+        home_url('index.php')
     );
 
 }
@@ -1645,16 +1645,16 @@ 
  *
  * @return string
  */
-function getpaid_filter_embed_template( $template ) {
+function getpaid_filter_embed_template($template) {
 
-    if ( isset( $_GET['getpaid_embed'] ) ) {
-        wpinv_get_template( 'payment-forms/embed.php' );
+    if (isset($_GET['getpaid_embed'])) {
+        wpinv_get_template('payment-forms/embed.php');
         exit;
     }
 
     return $template;
 }
-add_filter( 'template_include', 'getpaid_filter_embed_template' );
+add_filter('template_include', 'getpaid_filter_embed_template');
 
 /**
  * Get the payment forms custom fields.
@@ -1666,25 +1666,25 @@ 
 function getpaid_get_payment_form_custom_fields() {
 	global $wpdb, $payment_form_meta_fields;
 
-	if ( ! empty( $payment_form_meta_fields ) ) {
+	if (!empty($payment_form_meta_fields)) {
 		return $payment_form_meta_fields;
 	}
 
-	$results = $wpdb->get_results( "SELECT `pm`.`meta_value` FROM `{$wpdb->postmeta}` AS pm LEFT JOIN `{$wpdb->posts}` AS p ON p.ID = pm.post_id WHERE `pm`.`meta_key` = 'wpinv_form_elements' AND `p`.`post_type` = 'wpi_payment_form'" );
+	$results = $wpdb->get_results("SELECT `pm`.`meta_value` FROM `{$wpdb->postmeta}` AS pm LEFT JOIN `{$wpdb->posts}` AS p ON p.ID = pm.post_id WHERE `pm`.`meta_key` = 'wpinv_form_elements' AND `p`.`post_type` = 'wpi_payment_form'");
 
 	$meta_fields = array();
 
-	if ( ! empty( $results ) ) {
-		foreach ( $results as $row ) {
-			$fields = maybe_unserialize( $row->meta_value );
+	if (!empty($results)) {
+		foreach ($results as $row) {
+			$fields = maybe_unserialize($row->meta_value);
 
-			if ( ! empty( $fields ) && is_array( $fields ) ) {
-				foreach ( $fields as $field ) {
-					$label = ! empty( $field['add_meta'] ) && ! empty( $field['label'] ) ? wpinv_clean( wp_unslash( $field['label'] ) ) : '';
+			if (!empty($fields) && is_array($fields)) {
+				foreach ($fields as $field) {
+					$label = !empty($field['add_meta']) && !empty($field['label']) ? wpinv_clean(wp_unslash($field['label'])) : '';
 
-					if ( $label ) {
-						$field_key = '_' . str_replace( array( ' ', "'", '"', ',' ), array( '_', '', '', '_' ), getpaid_strtolower( $label ) );
-						$meta_fields[ $field_key ] = $label;
+					if ($label) {
+						$field_key = '_' . str_replace(array(' ', "'", '"', ','), array('_', '', '', '_'), getpaid_strtolower($label));
+						$meta_fields[$field_key] = $label;
 					}
 				}
 			}

includes/admin/class-getpaid-post-types-admin.php

Indentation +813 added lines, -813 removed lines

@@ -13,756 +13,756 @@ 
 class GetPaid_Post_Types_Admin {
 
     /**
-	 * Hook in methods.
-	 */
-	public static function init() {
-
-		// Init metaboxes.
-		GetPaid_Metaboxes::init();
-
-		// Filter the post updated messages.
-		add_filter( 'post_updated_messages', 'GetPaid_Post_Types_Admin::post_updated_messages' );
-
-		// Filter post actions.
-		add_filter( 'post_row_actions', 'GetPaid_Post_Types_Admin::post_row_actions', 10, 2 );
-		add_filter( 'post_row_actions', 'GetPaid_Post_Types_Admin::filter_invoice_row_actions', 90, 2 );
-
-		// Invoice table columns.
-		add_filter( 'manage_wpi_invoice_posts_columns', array( __CLASS__, 'invoice_columns' ), 100 );
-		add_action( 'manage_wpi_invoice_posts_custom_column', array( __CLASS__, 'display_invoice_columns' ), 10, 2 );
-		add_filter( 'bulk_actions-edit-wpi_invoice', array( __CLASS__, 'invoice_bulk_actions' ) );
-		add_filter( 'handle_bulk_actions-edit-wpi_invoice', array( __CLASS__, 'handle_invoice_bulk_actions' ), 10, 3 );
-
-		// Items table columns.
-		add_filter( 'manage_wpi_item_posts_columns', array( __CLASS__, 'item_columns' ), 100 );
-		add_filter( 'manage_edit-wpi_item_sortable_columns', array( __CLASS__, 'sortable_item_columns' ), 20 );
-		add_action( 'manage_wpi_item_posts_custom_column', array( __CLASS__, 'display_item_columns' ), 10, 2 );
-		add_action( 'restrict_manage_posts', array( __CLASS__, 'add_item_filters' ), 100 );
-		add_action( 'parse_query', array( __CLASS__, 'filter_item_query' ), 100 );
-		add_action( 'request', array( __CLASS__, 'reorder_items' ), 100 );
-
-		// Payment forms columns.
-		add_filter( 'manage_wpi_payment_form_posts_columns', array( __CLASS__, 'payment_form_columns' ), 100 );
-		add_action( 'manage_wpi_payment_form_posts_custom_column', array( __CLASS__, 'display_payment_form_columns' ), 10, 2 );
-		add_filter( 'display_post_states', array( __CLASS__, 'filter_payment_form_state' ), 10, 2 );
-
-		// Discount table columns.
-		add_filter( 'manage_wpi_discount_posts_columns', array( __CLASS__, 'discount_columns' ), 100 );
-		add_filter( 'bulk_actions-edit-wpi_discount', '__return_empty_array', 100 );
-
-		// Deleting posts.
-		add_action( 'delete_post', array( __CLASS__, 'delete_post' ) );
-		add_filter( 'display_post_states', array( __CLASS__, 'filter_discount_state' ), 10, 2 );
-
-		add_filter( 'display_post_states', array( __CLASS__, 'add_display_post_states' ), 10, 2 );
-	}
-
-	/**
-	 * Post updated messages.
-	 */
-	public static function post_updated_messages( $messages ) {
-		global $post;
-
-		$messages['wpi_discount'] = array(
-			0  => '',
-			1  => __( 'Discount updated.', 'invoicing' ),
-			2  => __( 'Custom field updated.', 'invoicing' ),
-			3  => __( 'Custom field deleted.', 'invoicing' ),
-			4  => __( 'Discount updated.', 'invoicing' ),
-			5  => isset( $_GET['revision'] ) ? wp_sprintf( __( 'Discount restored to revision from %s', 'invoicing' ), wp_post_revision_title( (int) $_GET['revision'], false ) ) : false,
-			6  => __( 'Discount updated.', 'invoicing' ),
-			7  => __( 'Discount saved.', 'invoicing' ),
-			8  => __( 'Discount submitted.', 'invoicing' ),
-			9  => wp_sprintf( __( 'Discount scheduled for: <strong>%1$s</strong>.', 'invoicing' ), date_i18n( __( 'M j, Y @ G:i', 'invoicing' ), strtotime( $post->post_date ) ) ),
-			10 => __( 'Discount draft updated.', 'invoicing' ),
-		);
-
-		$messages['wpi_payment_form'] = array(
-			0  => '',
-			1  => __( 'Payment Form updated.', 'invoicing' ),
-			2  => __( 'Custom field updated.', 'invoicing' ),
-			3  => __( 'Custom field deleted.', 'invoicing' ),
-			4  => __( 'Payment Form updated.', 'invoicing' ),
-			5  => isset( $_GET['revision'] ) ? wp_sprintf( __( 'Payment Form restored to revision from %s', 'invoicing' ), wp_post_revision_title( (int) $_GET['revision'], false ) ) : false,
-			6  => __( 'Payment Form updated.', 'invoicing' ),
-			7  => __( 'Payment Form saved.', 'invoicing' ),
-			8  => __( 'Payment Form submitted.', 'invoicing' ),
-			9  => wp_sprintf( __( 'Payment Form scheduled for: <strong>%1$s</strong>.', 'invoicing' ), date_i18n( __( 'M j, Y @ G:i', 'invoicing' ), strtotime( $post->post_date ) ) ),
-			10 => __( 'Payment Form draft updated.', 'invoicing' ),
-		);
-
-		return $messages;
-
-	}
-
-	/**
-	 * Post row actions.
-	 */
-	public static function post_row_actions( $actions, $post ) {
-
-		$post = get_post( $post );
-
-		// We do not want to edit the default payment form.
-		if ( 'wpi_payment_form' == $post->post_type ) {
-
-			if ( wpinv_get_default_payment_form() === $post->ID ) {
-				unset( $actions['trash'] );
-				unset( $actions['inline hide-if-no-js'] );
-			}
-
-			$actions['duplicate'] = sprintf(
-				'<a href="%1$s">%2$s</a>',
-				esc_url(
-					wp_nonce_url(
-						add_query_arg(
-							array(
-								'getpaid-admin-action' => 'duplicate_form',
-								'form_id'              => $post->ID,
-							)
-						),
-						'getpaid-nonce',
-						'getpaid-nonce'
-					)
-				),
-				esc_html( __( 'Duplicate', 'invoicing' ) )
-			);
-
-			$actions['reset'] = sprintf(
-				'<a href="%1$s" style="color: #800">%2$s</a>',
-				esc_url(
-					wp_nonce_url(
-						add_query_arg(
-							array(
-								'getpaid-admin-action' => 'reset_form_stats',
-								'form_id'              => $post->ID,
-							)
-						),
-						'getpaid-nonce',
-						'getpaid-nonce'
-					)
-				),
-				esc_html( __( 'Reset Stats', 'invoicing' ) )
-			);
-		}
-
-		// Link to item payment form.
-		if ( 'wpi_item' == $post->post_type ) {
-			if ( getpaid_item_type_supports( get_post_meta( $post->ID, '_wpinv_type', true ), 'buy_now' ) ) {
-				$actions['buy'] = sprintf(
-					'<a href="%1$s">%2$s</a>',
-					esc_url( getpaid_embed_url( false, $post->ID . '|0' ) ),
-					esc_html( __( 'Buy', 'invoicing' ) )
-				);
-			}
-		}
-
-		return $actions;
-	}
-
-	/**
+     * Hook in methods.
+     */
+    public static function init() {
+
+        // Init metaboxes.
+        GetPaid_Metaboxes::init();
+
+        // Filter the post updated messages.
+        add_filter( 'post_updated_messages', 'GetPaid_Post_Types_Admin::post_updated_messages' );
+
+        // Filter post actions.
+        add_filter( 'post_row_actions', 'GetPaid_Post_Types_Admin::post_row_actions', 10, 2 );
+        add_filter( 'post_row_actions', 'GetPaid_Post_Types_Admin::filter_invoice_row_actions', 90, 2 );
+
+        // Invoice table columns.
+        add_filter( 'manage_wpi_invoice_posts_columns', array( __CLASS__, 'invoice_columns' ), 100 );
+        add_action( 'manage_wpi_invoice_posts_custom_column', array( __CLASS__, 'display_invoice_columns' ), 10, 2 );
+        add_filter( 'bulk_actions-edit-wpi_invoice', array( __CLASS__, 'invoice_bulk_actions' ) );
+        add_filter( 'handle_bulk_actions-edit-wpi_invoice', array( __CLASS__, 'handle_invoice_bulk_actions' ), 10, 3 );
+
+        // Items table columns.
+        add_filter( 'manage_wpi_item_posts_columns', array( __CLASS__, 'item_columns' ), 100 );
+        add_filter( 'manage_edit-wpi_item_sortable_columns', array( __CLASS__, 'sortable_item_columns' ), 20 );
+        add_action( 'manage_wpi_item_posts_custom_column', array( __CLASS__, 'display_item_columns' ), 10, 2 );
+        add_action( 'restrict_manage_posts', array( __CLASS__, 'add_item_filters' ), 100 );
+        add_action( 'parse_query', array( __CLASS__, 'filter_item_query' ), 100 );
+        add_action( 'request', array( __CLASS__, 'reorder_items' ), 100 );
+
+        // Payment forms columns.
+        add_filter( 'manage_wpi_payment_form_posts_columns', array( __CLASS__, 'payment_form_columns' ), 100 );
+        add_action( 'manage_wpi_payment_form_posts_custom_column', array( __CLASS__, 'display_payment_form_columns' ), 10, 2 );
+        add_filter( 'display_post_states', array( __CLASS__, 'filter_payment_form_state' ), 10, 2 );
+
+        // Discount table columns.
+        add_filter( 'manage_wpi_discount_posts_columns', array( __CLASS__, 'discount_columns' ), 100 );
+        add_filter( 'bulk_actions-edit-wpi_discount', '__return_empty_array', 100 );
+
+        // Deleting posts.
+        add_action( 'delete_post', array( __CLASS__, 'delete_post' ) );
+        add_filter( 'display_post_states', array( __CLASS__, 'filter_discount_state' ), 10, 2 );
+
+        add_filter( 'display_post_states', array( __CLASS__, 'add_display_post_states' ), 10, 2 );
+    }
+
+    /**
+     * Post updated messages.
+     */
+    public static function post_updated_messages( $messages ) {
+        global $post;
+
+        $messages['wpi_discount'] = array(
+            0  => '',
+            1  => __( 'Discount updated.', 'invoicing' ),
+            2  => __( 'Custom field updated.', 'invoicing' ),
+            3  => __( 'Custom field deleted.', 'invoicing' ),
+            4  => __( 'Discount updated.', 'invoicing' ),
+            5  => isset( $_GET['revision'] ) ? wp_sprintf( __( 'Discount restored to revision from %s', 'invoicing' ), wp_post_revision_title( (int) $_GET['revision'], false ) ) : false,
+            6  => __( 'Discount updated.', 'invoicing' ),
+            7  => __( 'Discount saved.', 'invoicing' ),
+            8  => __( 'Discount submitted.', 'invoicing' ),
+            9  => wp_sprintf( __( 'Discount scheduled for: <strong>%1$s</strong>.', 'invoicing' ), date_i18n( __( 'M j, Y @ G:i', 'invoicing' ), strtotime( $post->post_date ) ) ),
+            10 => __( 'Discount draft updated.', 'invoicing' ),
+        );
+
+        $messages['wpi_payment_form'] = array(
+            0  => '',
+            1  => __( 'Payment Form updated.', 'invoicing' ),
+            2  => __( 'Custom field updated.', 'invoicing' ),
+            3  => __( 'Custom field deleted.', 'invoicing' ),
+            4  => __( 'Payment Form updated.', 'invoicing' ),
+            5  => isset( $_GET['revision'] ) ? wp_sprintf( __( 'Payment Form restored to revision from %s', 'invoicing' ), wp_post_revision_title( (int) $_GET['revision'], false ) ) : false,
+            6  => __( 'Payment Form updated.', 'invoicing' ),
+            7  => __( 'Payment Form saved.', 'invoicing' ),
+            8  => __( 'Payment Form submitted.', 'invoicing' ),
+            9  => wp_sprintf( __( 'Payment Form scheduled for: <strong>%1$s</strong>.', 'invoicing' ), date_i18n( __( 'M j, Y @ G:i', 'invoicing' ), strtotime( $post->post_date ) ) ),
+            10 => __( 'Payment Form draft updated.', 'invoicing' ),
+        );
+
+        return $messages;
+
+    }
+
+    /**
+     * Post row actions.
+     */
+    public static function post_row_actions( $actions, $post ) {
+
+        $post = get_post( $post );
+
+        // We do not want to edit the default payment form.
+        if ( 'wpi_payment_form' == $post->post_type ) {
+
+            if ( wpinv_get_default_payment_form() === $post->ID ) {
+                unset( $actions['trash'] );
+                unset( $actions['inline hide-if-no-js'] );
+            }
+
+            $actions['duplicate'] = sprintf(
+                '<a href="%1$s">%2$s</a>',
+                esc_url(
+                    wp_nonce_url(
+                        add_query_arg(
+                            array(
+                                'getpaid-admin-action' => 'duplicate_form',
+                                'form_id'              => $post->ID,
+                            )
+                        ),
+                        'getpaid-nonce',
+                        'getpaid-nonce'
+                    )
+                ),
+                esc_html( __( 'Duplicate', 'invoicing' ) )
+            );
+
+            $actions['reset'] = sprintf(
+                '<a href="%1$s" style="color: #800">%2$s</a>',
+                esc_url(
+                    wp_nonce_url(
+                        add_query_arg(
+                            array(
+                                'getpaid-admin-action' => 'reset_form_stats',
+                                'form_id'              => $post->ID,
+                            )
+                        ),
+                        'getpaid-nonce',
+                        'getpaid-nonce'
+                    )
+                ),
+                esc_html( __( 'Reset Stats', 'invoicing' ) )
+            );
+        }
+
+        // Link to item payment form.
+        if ( 'wpi_item' == $post->post_type ) {
+            if ( getpaid_item_type_supports( get_post_meta( $post->ID, '_wpinv_type', true ), 'buy_now' ) ) {
+                $actions['buy'] = sprintf(
+                    '<a href="%1$s">%2$s</a>',
+                    esc_url( getpaid_embed_url( false, $post->ID . '|0' ) ),
+                    esc_html( __( 'Buy', 'invoicing' ) )
+                );
+            }
+        }
+
+        return $actions;
+    }
+
+    /**
      * Remove bulk edit option from admin side quote listing
      *
      * @since    1.0.0
      * @param array $actions post actions
-	 * @param WP_Post $post
+     * @param WP_Post $post
      * @return array $actions actions without edit option
      */
     public static function filter_invoice_row_actions( $actions, $post ) {
 
         if ( getpaid_is_invoice_post_type( $post->post_type ) ) {
 
-			$actions = array();
-			$invoice = new WPInv_Invoice( $post );
-
-			$actions['edit'] = sprintf(
-				'<a href="%1$s">%2$s</a>',
-				esc_url( get_edit_post_link( $invoice->get_id() ) ),
-				esc_html( __( 'Edit', 'invoicing' ) )
-			);
-
-			if ( ! $invoice->is_draft() ) {
-
-				$actions['view'] = sprintf(
-					'<a href="%1$s">%2$s</a>',
-					esc_url( $invoice->get_view_url() ),
-					sprintf(
-						// translators: %s is the invoice type
-						esc_html__( 'View %s', 'invoicing' ),
-						getpaid_get_post_type_label( $invoice->get_post_type(), false )
-					)
-				);
-
-				$actions['send'] = sprintf(
-					'<a href="%1$s">%2$s</a>',
-					esc_url(
-						wp_nonce_url(
-							add_query_arg(
-								array(
-									'getpaid-admin-action' => 'send_invoice',
-									'invoice_id'           => $invoice->get_id(),
-								)
-							),
-							'getpaid-nonce',
-							'getpaid-nonce'
-						)
-					),
-					esc_html( __( 'Send to Customer', 'invoicing' ) )
-				);
-
-			}
-
-			$actions['duplicate'] = sprintf(
-				'<a href="%1$s">%2$s</a>',
-				esc_url(
-					wp_nonce_url(
-						add_query_arg(
-							array(
-								'getpaid-admin-action' => 'duplicate_invoice',
-								'invoice_id'           => $post->ID,
-							)
-						),
-						'getpaid-nonce',
-						'getpaid-nonce'
-					)
-				),
-				esc_html( __( 'Duplicate', 'invoicing' ) )
-			);
+            $actions = array();
+            $invoice = new WPInv_Invoice( $post );
+
+            $actions['edit'] = sprintf(
+                '<a href="%1$s">%2$s</a>',
+                esc_url( get_edit_post_link( $invoice->get_id() ) ),
+                esc_html( __( 'Edit', 'invoicing' ) )
+            );
+
+            if ( ! $invoice->is_draft() ) {
+
+                $actions['view'] = sprintf(
+                    '<a href="%1$s">%2$s</a>',
+                    esc_url( $invoice->get_view_url() ),
+                    sprintf(
+                        // translators: %s is the invoice type
+                        esc_html__( 'View %s', 'invoicing' ),
+                        getpaid_get_post_type_label( $invoice->get_post_type(), false )
+                    )
+                );
+
+                $actions['send'] = sprintf(
+                    '<a href="%1$s">%2$s</a>',
+                    esc_url(
+                        wp_nonce_url(
+                            add_query_arg(
+                                array(
+                                    'getpaid-admin-action' => 'send_invoice',
+                                    'invoice_id'           => $invoice->get_id(),
+                                )
+                            ),
+                            'getpaid-nonce',
+                            'getpaid-nonce'
+                        )
+                    ),
+                    esc_html( __( 'Send to Customer', 'invoicing' ) )
+                );
+
+            }
+
+            $actions['duplicate'] = sprintf(
+                '<a href="%1$s">%2$s</a>',
+                esc_url(
+                    wp_nonce_url(
+                        add_query_arg(
+                            array(
+                                'getpaid-admin-action' => 'duplicate_invoice',
+                                'invoice_id'           => $post->ID,
+                            )
+                        ),
+                        'getpaid-nonce',
+                        'getpaid-nonce'
+                    )
+                ),
+                esc_html( __( 'Duplicate', 'invoicing' ) )
+            );
 
         }
 
         return $actions;
-	}
-
-	/**
-	 * Returns an array of invoice table columns.
-	 */
-	public static function invoice_columns( $columns ) {
-
-		$columns = array(
-			'cb'           => $columns['cb'],
-			'number'       => __( 'Invoice', 'invoicing' ),
-			'customer'     => __( 'Customer', 'invoicing' ),
-			'invoice_date' => __( 'Created', 'invoicing' ),
-			'payment_date' => __( 'Completed', 'invoicing' ),
-			'amount'       => __( 'Amount', 'invoicing' ),
-			'recurring'    => __( 'Recurring', 'invoicing' ),
-			'status'       => __( 'Status', 'invoicing' ),
-		);
-
-		return apply_filters( 'wpi_invoice_table_columns', $columns );
-	}
-
-	/**
-	 * Displays invoice table columns.
-	 */
-	public static function display_invoice_columns( $column_name, $post_id ) {
-
-		$invoice = new WPInv_Invoice( $post_id );
-
-		switch ( $column_name ) {
-
-			case 'invoice_date':
-				$date_time = esc_attr( $invoice->get_created_date() );
-				$date      = esc_html( getpaid_format_date_value( $date_time, '&mdash;', true ) );
-				echo wp_kses_post( "<span title='$date_time'>$date</span>" );
-				break;
-
-			case 'payment_date':
-				if ( $invoice->is_paid() || $invoice->is_refunded() ) {
-					$date_time = esc_attr( $invoice->get_completed_date() );
-					$date      = esc_html( getpaid_format_date_value( $date_time, '&mdash;', true ) );
-					echo wp_kses_post( "<span title='$date_time'>$date</span>" );
-
-					if ( $_gateway = $invoice->get_gateway() ) {
-						$gateway_label = wpinv_get_gateway_admin_label( $_gateway );
-
-						if ( $transaction_url = $invoice->get_transaction_url() ) {
-							$gateway_label = '<a href="' . esc_url( $transaction_url ) . '" target="_blank" title="' . esc_attr__( 'Open transaction link', 'invoicing' ) . '">' . $gateway_label . '</a>';
-						}
-
-						$gateway = '<small class="meta bsui"><span class="fs-xs text-muted fst-normal">' . wp_sprintf( _x( 'Via %s', 'Paid via gateway', 'invoicing' ), $gateway_label ) . '</span></small>';
-					} else {
-						$gateway = '';
-					}
-
-					$gateway = apply_filters( 'getpaid_admin_invoices_list_table_gateway', $gateway, $invoice );
-
-					if ( $gateway ) {
-						echo wp_kses_post( $gateway ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
-					}
-				} else {
-					echo '&mdash;';
-				}
-
-				break;
-
-			case 'amount':
-				$amount = $invoice->get_total();
-				$formated_amount = wp_kses_post( wpinv_price( $amount, $invoice->get_currency() ) );
-
-				if ( $invoice->is_refunded() ) {
-					$refunded_amount = wpinv_price( 0, $invoice->get_currency() );
-					echo wp_kses_post( "<del>$formated_amount</del>&nbsp;<ins>$refunded_amount</ins>" );
-				} else {
-
-					$discount = $invoice->get_total_discount();
-
-					if ( ! empty( $discount ) ) {
-						$new_amount = wpinv_price( $amount + $discount, $invoice->get_currency() );
-						echo wp_kses_post( "<del>$new_amount</del>&nbsp;<ins>$formated_amount</ins>" );
-					} else {
-						echo wp_kses_post( $formated_amount );
-					}
-				}
-
-				break;
-
-			case 'status':
-				$status       = esc_html( $invoice->get_status() );
-				$status_label = esc_html( $invoice->get_status_nicename() );
-
-				// If it is paid, show the gateway title.
-				if ( $invoice->is_paid() ) {
-					$gateway = esc_html( $invoice->get_gateway_title() );
-					$gateway = wp_sprintf( esc_attr__( 'Paid via %s', 'invoicing' ), esc_html( $gateway ) );
-
-					echo wp_kses_post( "<mark class='wpi-help-tip getpaid-invoice-status $status' title='$gateway'><span>$status_label</span></mark>" );
-				} else {
-					echo wp_kses_post( "<mark class='getpaid-invoice-status $status'><span>$status_label</span></mark>" );
-				}
-
-				// If it is not paid, display the overdue and view status.
-				if ( ! $invoice->is_paid() && ! $invoice->is_refunded() ) {
-
-					// Invoice view status.
-					if ( wpinv_is_invoice_viewed( $invoice->get_id() ) ) {
-						echo '&nbsp;&nbsp;<i class="fa fa-eye wpi-help-tip" title="' . esc_attr__( 'Viewed by Customer', 'invoicing' ) . '"></i>';
-					} else {
-						echo '&nbsp;&nbsp;<i class="fa fa-eye-slash wpi-help-tip" title="' . esc_attr__( 'Not Viewed by Customer', 'invoicing' ) . '"></i>';
-					}
-
-					// Display the overview status.
-					if ( wpinv_get_option( 'overdue_active' ) ) {
-						$due_date = $invoice->get_due_date();
-						$fomatted = getpaid_format_date( $due_date );
-
-						if ( ! empty( $fomatted ) ) {
-							$date = wp_sprintf(
-								// translators: %s is the due date.
-								__( 'Due %s', 'invoicing' ),
-								$fomatted
-							);
-							echo wp_kses_post( "<p class='description' style='color: #888;' title='$due_date'>$fomatted</p>" );
-						}
-					}
-				}
-
-				break;
-
-			case 'recurring':
-				if ( $invoice->is_recurring() ) {
-					echo '<i class="fa fa-check" style="color:#43850a;"></i>';
-				} else {
-					echo '<i class="fa fa-times" style="color:#616161;"></i>';
-				}
-				break;
-
-			case 'number':
-				$edit_link       = esc_url( get_edit_post_link( $invoice->get_id() ) );
-				$invoice_number  = esc_html( $invoice->get_number() );
-				$invoice_details = esc_attr__( 'View Invoice Details', 'invoicing' );
-
-				echo wp_kses_post( "<a href='$edit_link' title='$invoice_details'><strong>$invoice_number</strong></a>" );
-
-				do_action( 'getpaid_admin_table_invoice_number_column', $invoice );
-				break;
-
-			case 'customer':
-				$customer_name = $invoice->get_user_full_name();
-
-				if ( empty( $customer_name ) ) {
-					$customer_name = $invoice->get_email();
-				}
-
-				if ( ! empty( $customer_name ) ) {
-					$customer_details = esc_attr__( 'View Customer Details', 'invoicing' );
-					$view_link        = esc_url( add_query_arg( 'user_id', $invoice->get_user_id(), admin_url( 'user-edit.php' ) ) );
-					echo wp_kses_post( "<a href='$view_link' title='$customer_details'><span>$customer_name</span></a>" );
-				} else {
-					echo '<div>&mdash;</div>';
-				}
-
-				break;
-
-		}
-
-	}
-
-	/**
-	 * Displays invoice bulk actions.
-	 */
-	public static function invoice_bulk_actions( $actions ) {
-		$actions['resend-invoice'] = __( 'Send to Customer', 'invoicing' );
-		return $actions;
-	}
-
-	/**
-	 * Processes invoice bulk actions.
-	 */
-	public static function handle_invoice_bulk_actions( $redirect_url, $action, $post_ids ) {
-
-		if ( 'resend-invoice' === $action ) {
-			foreach ( $post_ids as $post_id ) {
-				getpaid()->get( 'invoice_emails' )->user_invoice( new WPInv_Invoice( $post_id ), true );
-			}
-		}
-
-		return $redirect_url;
-
-	}
-
-	/**
-	 * Returns an array of payment forms table columns.
-	 */
-	public static function payment_form_columns( $columns ) {
-
-		$columns = array(
-			'cb'        => $columns['cb'],
-			'title'     => __( 'Name', 'invoicing' ),
-			'shortcode' => __( 'Shortcode', 'invoicing' ),
-			'earnings'  => __( 'Revenue', 'invoicing' ),
-			'refunds'   => __( 'Refunded', 'invoicing' ),
-			'items'     => __( 'Items', 'invoicing' ),
-			'date'      => __( 'Date', 'invoicing' ),
-		);
-
-		return apply_filters( 'wpi_payment_form_table_columns', $columns );
-
-	}
-
-	/**
-	 * Displays payment form table columns.
-	 */
-	public static function display_payment_form_columns( $column_name, $post_id ) {
-
-		// Retrieve the payment form.
-		$form = new GetPaid_Payment_Form( $post_id );
-
-		switch ( $column_name ) {
-
-			case 'earnings':
-				echo wp_kses_post( wpinv_price( $form->get_earned() ) );
-				break;
-
-			case 'refunds':
-				echo wp_kses_post( wpinv_price( $form->get_refunded() ) );
-				break;
-
-			case 'refunds':
-				echo wp_kses_post( wpinv_price( $form->get_refunded() ) );
-				break;
-
-			case 'shortcode':
-				if ( $form->is_default() ) {
-					echo '&mdash;';
-				} else {
-					echo '<input onClick="this.select()" type="text" value="[getpaid form=' . esc_attr( $form->get_id() ) . ']" style="width: 100%;" readonly/>';
-				}
-
-				break;
+    }
+
+    /**
+     * Returns an array of invoice table columns.
+     */
+    public static function invoice_columns( $columns ) {
+
+        $columns = array(
+            'cb'           => $columns['cb'],
+            'number'       => __( 'Invoice', 'invoicing' ),
+            'customer'     => __( 'Customer', 'invoicing' ),
+            'invoice_date' => __( 'Created', 'invoicing' ),
+            'payment_date' => __( 'Completed', 'invoicing' ),
+            'amount'       => __( 'Amount', 'invoicing' ),
+            'recurring'    => __( 'Recurring', 'invoicing' ),
+            'status'       => __( 'Status', 'invoicing' ),
+        );
+
+        return apply_filters( 'wpi_invoice_table_columns', $columns );
+    }
+
+    /**
+     * Displays invoice table columns.
+     */
+    public static function display_invoice_columns( $column_name, $post_id ) {
+
+        $invoice = new WPInv_Invoice( $post_id );
+
+        switch ( $column_name ) {
+
+            case 'invoice_date':
+                $date_time = esc_attr( $invoice->get_created_date() );
+                $date      = esc_html( getpaid_format_date_value( $date_time, '&mdash;', true ) );
+                echo wp_kses_post( "<span title='$date_time'>$date</span>" );
+                break;
+
+            case 'payment_date':
+                if ( $invoice->is_paid() || $invoice->is_refunded() ) {
+                    $date_time = esc_attr( $invoice->get_completed_date() );
+                    $date      = esc_html( getpaid_format_date_value( $date_time, '&mdash;', true ) );
+                    echo wp_kses_post( "<span title='$date_time'>$date</span>" );
+
+                    if ( $_gateway = $invoice->get_gateway() ) {
+                        $gateway_label = wpinv_get_gateway_admin_label( $_gateway );
+
+                        if ( $transaction_url = $invoice->get_transaction_url() ) {
+                            $gateway_label = '<a href="' . esc_url( $transaction_url ) . '" target="_blank" title="' . esc_attr__( 'Open transaction link', 'invoicing' ) . '">' . $gateway_label . '</a>';
+                        }
+
+                        $gateway = '<small class="meta bsui"><span class="fs-xs text-muted fst-normal">' . wp_sprintf( _x( 'Via %s', 'Paid via gateway', 'invoicing' ), $gateway_label ) . '</span></small>';
+                    } else {
+                        $gateway = '';
+                    }
+
+                    $gateway = apply_filters( 'getpaid_admin_invoices_list_table_gateway', $gateway, $invoice );
+
+                    if ( $gateway ) {
+                        echo wp_kses_post( $gateway ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
+                    }
+                } else {
+                    echo '&mdash;';
+                }
+
+                break;
+
+            case 'amount':
+                $amount = $invoice->get_total();
+                $formated_amount = wp_kses_post( wpinv_price( $amount, $invoice->get_currency() ) );
+
+                if ( $invoice->is_refunded() ) {
+                    $refunded_amount = wpinv_price( 0, $invoice->get_currency() );
+                    echo wp_kses_post( "<del>$formated_amount</del>&nbsp;<ins>$refunded_amount</ins>" );
+                } else {
+
+                    $discount = $invoice->get_total_discount();
+
+                    if ( ! empty( $discount ) ) {
+                        $new_amount = wpinv_price( $amount + $discount, $invoice->get_currency() );
+                        echo wp_kses_post( "<del>$new_amount</del>&nbsp;<ins>$formated_amount</ins>" );
+                    } else {
+                        echo wp_kses_post( $formated_amount );
+                    }
+                }
+
+                break;
+
+            case 'status':
+                $status       = esc_html( $invoice->get_status() );
+                $status_label = esc_html( $invoice->get_status_nicename() );
+
+                // If it is paid, show the gateway title.
+                if ( $invoice->is_paid() ) {
+                    $gateway = esc_html( $invoice->get_gateway_title() );
+                    $gateway = wp_sprintf( esc_attr__( 'Paid via %s', 'invoicing' ), esc_html( $gateway ) );
+
+                    echo wp_kses_post( "<mark class='wpi-help-tip getpaid-invoice-status $status' title='$gateway'><span>$status_label</span></mark>" );
+                } else {
+                    echo wp_kses_post( "<mark class='getpaid-invoice-status $status'><span>$status_label</span></mark>" );
+                }
+
+                // If it is not paid, display the overdue and view status.
+                if ( ! $invoice->is_paid() && ! $invoice->is_refunded() ) {
+
+                    // Invoice view status.
+                    if ( wpinv_is_invoice_viewed( $invoice->get_id() ) ) {
+                        echo '&nbsp;&nbsp;<i class="fa fa-eye wpi-help-tip" title="' . esc_attr__( 'Viewed by Customer', 'invoicing' ) . '"></i>';
+                    } else {
+                        echo '&nbsp;&nbsp;<i class="fa fa-eye-slash wpi-help-tip" title="' . esc_attr__( 'Not Viewed by Customer', 'invoicing' ) . '"></i>';
+                    }
+
+                    // Display the overview status.
+                    if ( wpinv_get_option( 'overdue_active' ) ) {
+                        $due_date = $invoice->get_due_date();
+                        $fomatted = getpaid_format_date( $due_date );
+
+                        if ( ! empty( $fomatted ) ) {
+                            $date = wp_sprintf(
+                                // translators: %s is the due date.
+                                __( 'Due %s', 'invoicing' ),
+                                $fomatted
+                            );
+                            echo wp_kses_post( "<p class='description' style='color: #888;' title='$due_date'>$fomatted</p>" );
+                        }
+                    }
+                }
+
+                break;
+
+            case 'recurring':
+                if ( $invoice->is_recurring() ) {
+                    echo '<i class="fa fa-check" style="color:#43850a;"></i>';
+                } else {
+                    echo '<i class="fa fa-times" style="color:#616161;"></i>';
+                }
+                break;
+
+            case 'number':
+                $edit_link       = esc_url( get_edit_post_link( $invoice->get_id() ) );
+                $invoice_number  = esc_html( $invoice->get_number() );
+                $invoice_details = esc_attr__( 'View Invoice Details', 'invoicing' );
+
+                echo wp_kses_post( "<a href='$edit_link' title='$invoice_details'><strong>$invoice_number</strong></a>" );
+
+                do_action( 'getpaid_admin_table_invoice_number_column', $invoice );
+                break;
+
+            case 'customer':
+                $customer_name = $invoice->get_user_full_name();
+
+                if ( empty( $customer_name ) ) {
+                    $customer_name = $invoice->get_email();
+                }
+
+                if ( ! empty( $customer_name ) ) {
+                    $customer_details = esc_attr__( 'View Customer Details', 'invoicing' );
+                    $view_link        = esc_url( add_query_arg( 'user_id', $invoice->get_user_id(), admin_url( 'user-edit.php' ) ) );
+                    echo wp_kses_post( "<a href='$view_link' title='$customer_details'><span>$customer_name</span></a>" );
+                } else {
+                    echo '<div>&mdash;</div>';
+                }
+
+                break;
 
-			case 'items':
-				$items = $form->get_items();
-
-				if ( $form->is_default() || empty( $items ) ) {
-					echo '&mdash;';
-					return;
-				}
-
-				$_items = array();
-
-				foreach ( $items as $item ) {
-					$url = $item->get_edit_url();
-
-					if ( empty( $url ) ) {
-						$_items[] = esc_html( $item->get_name() );
-					} else {
-						$_items[] = sprintf(
-							'<a href="%s">%s</a>',
-							esc_url( $url ),
-							esc_html( $item->get_name() )
-						);
-					}
+        }
+
+    }
+
+    /**
+     * Displays invoice bulk actions.
+     */
+    public static function invoice_bulk_actions( $actions ) {
+        $actions['resend-invoice'] = __( 'Send to Customer', 'invoicing' );
+        return $actions;
+    }
+
+    /**
+     * Processes invoice bulk actions.
+     */
+    public static function handle_invoice_bulk_actions( $redirect_url, $action, $post_ids ) {
+
+        if ( 'resend-invoice' === $action ) {
+            foreach ( $post_ids as $post_id ) {
+                getpaid()->get( 'invoice_emails' )->user_invoice( new WPInv_Invoice( $post_id ), true );
+            }
+        }
+
+        return $redirect_url;
+
+    }
+
+    /**
+     * Returns an array of payment forms table columns.
+     */
+    public static function payment_form_columns( $columns ) {
+
+        $columns = array(
+            'cb'        => $columns['cb'],
+            'title'     => __( 'Name', 'invoicing' ),
+            'shortcode' => __( 'Shortcode', 'invoicing' ),
+            'earnings'  => __( 'Revenue', 'invoicing' ),
+            'refunds'   => __( 'Refunded', 'invoicing' ),
+            'items'     => __( 'Items', 'invoicing' ),
+            'date'      => __( 'Date', 'invoicing' ),
+        );
+
+        return apply_filters( 'wpi_payment_form_table_columns', $columns );
+
+    }
+
+    /**
+     * Displays payment form table columns.
+     */
+    public static function display_payment_form_columns( $column_name, $post_id ) {
+
+        // Retrieve the payment form.
+        $form = new GetPaid_Payment_Form( $post_id );
+
+        switch ( $column_name ) {
+
+            case 'earnings':
+                echo wp_kses_post( wpinv_price( $form->get_earned() ) );
+                break;
+
+            case 'refunds':
+                echo wp_kses_post( wpinv_price( $form->get_refunded() ) );
+                break;
+
+            case 'refunds':
+                echo wp_kses_post( wpinv_price( $form->get_refunded() ) );
+                break;
+
+            case 'shortcode':
+                if ( $form->is_default() ) {
+                    echo '&mdash;';
+                } else {
+                    echo '<input onClick="this.select()" type="text" value="[getpaid form=' . esc_attr( $form->get_id() ) . ']" style="width: 100%;" readonly/>';
+                }
+
+                break;
+
+            case 'items':
+                $items = $form->get_items();
+
+                if ( $form->is_default() || empty( $items ) ) {
+                    echo '&mdash;';
+                    return;
+                }
+
+                $_items = array();
+
+                foreach ( $items as $item ) {
+                    $url = $item->get_edit_url();
+
+                    if ( empty( $url ) ) {
+                        $_items[] = esc_html( $item->get_name() );
+                    } else {
+                        $_items[] = sprintf(
+                            '<a href="%s">%s</a>',
+                            esc_url( $url ),
+                            esc_html( $item->get_name() )
+                        );
+                    }
 }
 
-				echo wp_kses_post( implode( '<br>', $_items ) );
+                echo wp_kses_post( implode( '<br>', $_items ) );
+
+                break;
+
+        }
+
+    }
+
+    /**
+     * Filters post states.
+     */
+    public static function filter_payment_form_state( $post_states, $post ) {
+
+        if ( 'wpi_payment_form' === $post->post_type && wpinv_get_default_payment_form() === $post->ID ) {
+            $post_states['default_form'] = __( 'Default Payment Form', 'invoicing' );
+        }
+
+        return $post_states;
+
+    }
+
+    /**
+     * Returns an array of coupon table columns.
+     */
+    public static function discount_columns( $columns ) {
+
+        $columns = array(
+            'cb'          => $columns['cb'],
+            'title'       => __( 'Name', 'invoicing' ),
+            'code'        => __( 'Code', 'invoicing' ),
+            'amount'      => __( 'Amount', 'invoicing' ),
+            'usage'       => __( 'Usage / Limit', 'invoicing' ),
+            'start_date'  => __( 'Start Date', 'invoicing' ),
+            'expiry_date' => __( 'Expiry Date', 'invoicing' ),
+        );
+
+        return apply_filters( 'wpi_discount_table_columns', $columns );
+    }
 
-				break;
+    /**
+     * Filters post states.
+     */
+    public static function filter_discount_state( $post_states, $post ) {
 
-		}
+        if ( 'wpi_discount' === $post->post_type ) {
 
-	}
+            $discount = new WPInv_Discount( $post );
 
-	/**
-	 * Filters post states.
-	 */
-	public static function filter_payment_form_state( $post_states, $post ) {
+            $status = $discount->is_expired() ? 'expired' : $discount->get_status();
 
-		if ( 'wpi_payment_form' === $post->post_type && wpinv_get_default_payment_form() === $post->ID ) {
-			$post_states['default_form'] = __( 'Default Payment Form', 'invoicing' );
-		}
+            if ( 'publish' !== $status ) {
+                return array(
+                    'discount_status' => wpinv_discount_status( $status ),
+                );
+            }
+
+            return array();
+
+        }
+
+        return $post_states;
 
-		return $post_states;
+    }
 
-	}
+    /**
+     * Returns an array of items table columns.
+     */
+    public static function item_columns( $columns ) {
+
+        $columns = array(
+            'cb'        => $columns['cb'],
+            'title'     => __( 'Name', 'invoicing' ),
+            'price'     => __( 'Price', 'invoicing' ),
+            'vat_rule'  => __( 'Tax Rule', 'invoicing' ),
+            'vat_class' => __( 'Tax Class', 'invoicing' ),
+            'type'      => __( 'Type', 'invoicing' ),
+            'shortcode' => __( 'Shortcode', 'invoicing' ),
+        );
+
+        if ( ! wpinv_use_taxes() ) {
+            unset( $columns['vat_rule'] );
+            unset( $columns['vat_class'] );
+        }
 
-	/**
-	 * Returns an array of coupon table columns.
-	 */
-	public static function discount_columns( $columns ) {
+        return apply_filters( 'wpi_item_table_columns', $columns );
+    }
 
-		$columns = array(
-			'cb'          => $columns['cb'],
-			'title'       => __( 'Name', 'invoicing' ),
-			'code'        => __( 'Code', 'invoicing' ),
-			'amount'      => __( 'Amount', 'invoicing' ),
-			'usage'       => __( 'Usage / Limit', 'invoicing' ),
-			'start_date'  => __( 'Start Date', 'invoicing' ),
-			'expiry_date' => __( 'Expiry Date', 'invoicing' ),
-		);
+    /**
+     * Returns an array of sortable items table columns.
+     */
+    public static function sortable_item_columns( $columns ) {
+
+        return array_merge(
+            $columns,
+            array(
+                'price'     => 'price',
+                'vat_rule'  => 'vat_rule',
+                'vat_class' => 'vat_class',
+                'type'      => 'type',
+            )
+        );
 
-		return apply_filters( 'wpi_discount_table_columns', $columns );
-	}
+    }
 
-	/**
-	 * Filters post states.
-	 */
-	public static function filter_discount_state( $post_states, $post ) {
+    /**
+     * Displays items table columns.
+     */
+    public static function display_item_columns( $column_name, $post_id ) {
 
-		if ( 'wpi_discount' === $post->post_type ) {
+        $item = new WPInv_Item( $post_id );
 
-			$discount = new WPInv_Discount( $post );
+        switch ( $column_name ) {
 
-			$status = $discount->is_expired() ? 'expired' : $discount->get_status();
+            case 'price':
+                if ( ! $item->is_recurring() ) {
+                    echo wp_kses_post( $item->get_the_price() );
+                    break;
+                }
 
-			if ( 'publish' !== $status ) {
-				return array(
-					'discount_status' => wpinv_discount_status( $status ),
-				);
-			}
+                $price = wp_sprintf(
+                    __( '%1$s / %2$s', 'invoicing' ),
+                    $item->get_the_price(),
+                    getpaid_get_subscription_period_label( $item->get_recurring_period(), $item->get_recurring_interval(), '' )
+                );
 
-			return array();
+                if ( $item->get_the_price() == $item->get_the_initial_price() ) {
+                    echo wp_kses_post( $price );
+                    break;
+                }
 
-		}
+                echo wp_kses_post( $item->get_the_initial_price() );
 
-		return $post_states;
+                echo '<span class="meta">' . wp_sprintf( esc_html__( 'then %s', 'invoicing' ), wp_kses_post( $price ) ) . '</span>';
+                break;
 
-	}
+            case 'vat_rule':
+                echo wp_kses_post( getpaid_get_tax_rule_label( $item->get_vat_rule() ) );
+                break;
 
-	/**
-	 * Returns an array of items table columns.
-	 */
-	public static function item_columns( $columns ) {
+            case 'vat_class':
+                echo wp_kses_post( getpaid_get_tax_class_label( $item->get_vat_class() ) );
+                break;
 
-		$columns = array(
-			'cb'        => $columns['cb'],
-			'title'     => __( 'Name', 'invoicing' ),
-			'price'     => __( 'Price', 'invoicing' ),
-			'vat_rule'  => __( 'Tax Rule', 'invoicing' ),
-			'vat_class' => __( 'Tax Class', 'invoicing' ),
-			'type'      => __( 'Type', 'invoicing' ),
-			'shortcode' => __( 'Shortcode', 'invoicing' ),
-		);
+            case 'shortcode':
+                if ( $item->is_type( array( '', 'fee', 'custom' ) ) ) {
+                    echo '<input onClick="this.select()" type="text" value="[getpaid item=' . esc_attr( $item->get_id() ) . ' button=\'Buy Now\']" style="width: 100%;" readonly/>';
+                } else {
+                    echo '&mdash;';
+                }
 
-		if ( ! wpinv_use_taxes() ) {
-			unset( $columns['vat_rule'] );
-			unset( $columns['vat_class'] );
-		}
+                break;
 
-		return apply_filters( 'wpi_item_table_columns', $columns );
-	}
+            case 'type':
+                echo wp_kses_post( wpinv_item_type( $item->get_id() ) . '<span class="meta">' . $item->get_custom_singular_name() . '</span>' );
+                break;
 
-	/**
-	 * Returns an array of sortable items table columns.
-	 */
-	public static function sortable_item_columns( $columns ) {
-
-		return array_merge(
-			$columns,
-			array(
-				'price'     => 'price',
-				'vat_rule'  => 'vat_rule',
-				'vat_class' => 'vat_class',
-				'type'      => 'type',
-			)
-		);
-
-	}
-
-	/**
-	 * Displays items table columns.
-	 */
-	public static function display_item_columns( $column_name, $post_id ) {
-
-		$item = new WPInv_Item( $post_id );
-
-		switch ( $column_name ) {
-
-			case 'price':
-				if ( ! $item->is_recurring() ) {
-					echo wp_kses_post( $item->get_the_price() );
-					break;
-				}
-
-				$price = wp_sprintf(
-					__( '%1$s / %2$s', 'invoicing' ),
-					$item->get_the_price(),
-					getpaid_get_subscription_period_label( $item->get_recurring_period(), $item->get_recurring_interval(), '' )
-				);
-
-				if ( $item->get_the_price() == $item->get_the_initial_price() ) {
-					echo wp_kses_post( $price );
-					break;
-				}
-
-				echo wp_kses_post( $item->get_the_initial_price() );
-
-				echo '<span class="meta">' . wp_sprintf( esc_html__( 'then %s', 'invoicing' ), wp_kses_post( $price ) ) . '</span>';
-				break;
-
-			case 'vat_rule':
-				echo wp_kses_post( getpaid_get_tax_rule_label( $item->get_vat_rule() ) );
-				break;
-
-			case 'vat_class':
-				echo wp_kses_post( getpaid_get_tax_class_label( $item->get_vat_class() ) );
-				break;
-
-			case 'shortcode':
-				if ( $item->is_type( array( '', 'fee', 'custom' ) ) ) {
-					echo '<input onClick="this.select()" type="text" value="[getpaid item=' . esc_attr( $item->get_id() ) . ' button=\'Buy Now\']" style="width: 100%;" readonly/>';
-				} else {
-					echo '&mdash;';
-				}
-
-				break;
-
-			case 'type':
-				echo wp_kses_post( wpinv_item_type( $item->get_id() ) . '<span class="meta">' . $item->get_custom_singular_name() . '</span>' );
-				break;
-
-		}
-
-	}
-
-	/**
-	 * Lets users filter items using taxes.
-	 */
-	public static function add_item_filters( $post_type ) {
-
-		// Abort if we're not dealing with items.
-		if ( 'wpi_item' !== $post_type ) {
-			return;
-		}
-
-		// Filter by vat rules.
-		if ( wpinv_use_taxes() ) {
-
-			// Sanitize selected vat rule.
-			$vat_rule   = '';
-			$vat_rules  = getpaid_get_tax_rules();
-			if ( isset( $_GET['vat_rule'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-				$vat_rule   = sanitize_text_field( $_GET['vat_rule'] ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-			}
-
-			// Filter by VAT rule.
-			wpinv_html_select(
-				array(
-					'options'          => array_merge(
-						array(
-							'' => __( 'All Tax Rules', 'invoicing' ),
-						),
-						$vat_rules
-					),
-					'name'             => 'vat_rule',
-					'id'               => 'vat_rule',
-					'selected'         => in_array( $vat_rule, array_keys( $vat_rules ), true ) ? $vat_rule : '',
-					'show_option_all'  => false,
-					'show_option_none' => false,
-				)
-			);
-
-			// Filter by VAT class.
-
-			// Sanitize selected vat rule.
-			$vat_class   = '';
-			$vat_classes = getpaid_get_tax_classes();
-			if ( isset( $_GET['vat_class'] ) ) {  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-				$vat_class   = sanitize_text_field( $_GET['vat_class'] );  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-			}
-
-			wpinv_html_select(
-				array(
-					'options'          => array_merge(
-						array(
-							'' => __( 'All Tax Classes', 'invoicing' ),
-						),
-						$vat_classes
-					),
-					'name'             => 'vat_class',
-					'id'               => 'vat_class',
-					'selected'         => in_array( $vat_class, array_keys( $vat_classes ), true ) ? $vat_class : '',
-					'show_option_all'  => false,
-					'show_option_none' => false,
-				)
-			);
-
-		}
-
-		// Filter by item type.
-		$type   = '';
-		if ( isset( $_GET['type'] ) ) {  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-			$type   = sanitize_text_field( $_GET['type'] );  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-		}
-
-		wpinv_html_select(
-			array(
-				'options'          => array_merge(
-					array(
-						'' => __( 'All item types', 'invoicing' ),
-					),
-					wpinv_get_item_types()
-				),
-				'name'             => 'type',
-				'id'               => 'type',
-				'selected'         => in_array( $type, wpinv_item_types(), true ) ? $type : '',
-				'show_option_all'  => false,
-				'show_option_none' => false,
-			)
-		);
-
-	}
-
-	/**
-	 * Filters the item query.
-	 */
-	public static function filter_item_query( $query ) {
-
-		// modify the query only if it admin and main query.
-		if ( ! ( is_admin() && $query->is_main_query() ) ) {
-			return $query;
-		}
-
-		// we want to modify the query for our items.
-		if ( empty( $query->query['post_type'] ) || 'wpi_item' !== $query->query['post_type'] ) {
-			return $query;
-		}
-
-		if ( empty( $query->query_vars['meta_query'] ) ) {
-			$query->query_vars['meta_query'] = array();
-		}
-
-		// Filter vat rule type
+        }
+
+    }
+
+    /**
+     * Lets users filter items using taxes.
+     */
+    public static function add_item_filters( $post_type ) {
+
+        // Abort if we're not dealing with items.
+        if ( 'wpi_item' !== $post_type ) {
+            return;
+        }
+
+        // Filter by vat rules.
+        if ( wpinv_use_taxes() ) {
+
+            // Sanitize selected vat rule.
+            $vat_rule   = '';
+            $vat_rules  = getpaid_get_tax_rules();
+            if ( isset( $_GET['vat_rule'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+                $vat_rule   = sanitize_text_field( $_GET['vat_rule'] ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+            }
+
+            // Filter by VAT rule.
+            wpinv_html_select(
+                array(
+                    'options'          => array_merge(
+                        array(
+                            '' => __( 'All Tax Rules', 'invoicing' ),
+                        ),
+                        $vat_rules
+                    ),
+                    'name'             => 'vat_rule',
+                    'id'               => 'vat_rule',
+                    'selected'         => in_array( $vat_rule, array_keys( $vat_rules ), true ) ? $vat_rule : '',
+                    'show_option_all'  => false,
+                    'show_option_none' => false,
+                )
+            );
+
+            // Filter by VAT class.
+
+            // Sanitize selected vat rule.
+            $vat_class   = '';
+            $vat_classes = getpaid_get_tax_classes();
+            if ( isset( $_GET['vat_class'] ) ) {  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+                $vat_class   = sanitize_text_field( $_GET['vat_class'] );  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+            }
+
+            wpinv_html_select(
+                array(
+                    'options'          => array_merge(
+                        array(
+                            '' => __( 'All Tax Classes', 'invoicing' ),
+                        ),
+                        $vat_classes
+                    ),
+                    'name'             => 'vat_class',
+                    'id'               => 'vat_class',
+                    'selected'         => in_array( $vat_class, array_keys( $vat_classes ), true ) ? $vat_class : '',
+                    'show_option_all'  => false,
+                    'show_option_none' => false,
+                )
+            );
+
+        }
+
+        // Filter by item type.
+        $type   = '';
+        if ( isset( $_GET['type'] ) ) {  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+            $type   = sanitize_text_field( $_GET['type'] );  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+        }
+
+        wpinv_html_select(
+            array(
+                'options'          => array_merge(
+                    array(
+                        '' => __( 'All item types', 'invoicing' ),
+                    ),
+                    wpinv_get_item_types()
+                ),
+                'name'             => 'type',
+                'id'               => 'type',
+                'selected'         => in_array( $type, wpinv_item_types(), true ) ? $type : '',
+                'show_option_all'  => false,
+                'show_option_none' => false,
+            )
+        );
+
+    }
+
+    /**
+     * Filters the item query.
+     */
+    public static function filter_item_query( $query ) {
+
+        // modify the query only if it admin and main query.
+        if ( ! ( is_admin() && $query->is_main_query() ) ) {
+            return $query;
+        }
+
+        // we want to modify the query for our items.
+        if ( empty( $query->query['post_type'] ) || 'wpi_item' !== $query->query['post_type'] ) {
+            return $query;
+        }
+
+        if ( empty( $query->query_vars['meta_query'] ) ) {
+            $query->query_vars['meta_query'] = array();
+        }
+
+        // Filter vat rule type
         if ( ! empty( $_GET['vat_rule'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
             $query->query_vars['meta_query'][] = array(
                 'key'     => '_wpinv_vat_rule',
@@ -787,101 +787,101 @@ 
                 'value'   => sanitize_text_field( $_GET['type'] ), // phpcs:ignore WordPress.Security.NonceVerification.Recommended
                 'compare' => '=',
             );
-		}
-
-		$query->query_vars['meta_query'][] = array(
-			'key'     => '_wpinv_one_time',
-			'compare' => 'NOT EXISTS',
-		);
-	}
-
-	/**
-	 * Reorders items.
-	 */
-	public static function reorder_items( $vars ) {
-		global $typenow;
-
-		if ( 'wpi_item' !== $typenow || empty( $vars['orderby'] ) ) {
-			return $vars;
-		}
-
-		// By item type.
-		if ( 'type' === $vars['orderby'] ) {
-			return array_merge(
-				$vars,
-				array(
-					'meta_key' => '_wpinv_type',
-					'orderby'  => 'meta_value',
-				)
-			);
-		}
-
-		// By vat class.
-		if ( 'vat_class' === $vars['orderby'] ) {
-			return array_merge(
-				$vars,
-				array(
-					'meta_key' => '_wpinv_vat_class',
-					'orderby'  => 'meta_value',
-				)
-			);
-		}
-
-		// By vat rule.
-		if ( 'vat_rule' === $vars['orderby'] ) {
-			return array_merge(
-				$vars,
-				array(
-					'meta_key' => '_wpinv_vat_rule',
-					'orderby'  => 'meta_value',
-				)
-			);
-		}
-
-		// By price.
-		if ( 'price' === $vars['orderby'] ) {
-			return array_merge(
-				$vars,
-				array(
-					'meta_key' => '_wpinv_price',
-					'orderby'  => 'meta_value_num',
-				)
-			);
-		}
-
-		return $vars;
-
-	}
-
-	/**
-	 * Fired when deleting a post.
-	 */
-	public static function delete_post( $post_id ) {
-
-		switch ( get_post_type( $post_id ) ) {
-
-			case 'wpi_item':
-				do_action( 'getpaid_before_delete_item', new WPInv_Item( $post_id ) );
-				break;
-
-			case 'wpi_payment_form':
-				do_action( 'getpaid_before_delete_payment_form', new GetPaid_Payment_Form( $post_id ) );
-				break;
-
-			case 'wpi_discount':
-				do_action( 'getpaid_before_delete_discount', new WPInv_Discount( $post_id ) );
-				break;
-
-			case 'wpi_invoice':
-				$invoice = new WPInv_Invoice( $post_id );
-				do_action( 'getpaid_before_delete_invoice', $invoice );
-				$invoice->get_data_store()->delete_items( $invoice );
-				$invoice->get_data_store()->delete_special_fields( $invoice );
-				break;
-		}
-	}
-
-	/**
+        }
+
+        $query->query_vars['meta_query'][] = array(
+            'key'     => '_wpinv_one_time',
+            'compare' => 'NOT EXISTS',
+        );
+    }
+
+    /**
+     * Reorders items.
+     */
+    public static function reorder_items( $vars ) {
+        global $typenow;
+
+        if ( 'wpi_item' !== $typenow || empty( $vars['orderby'] ) ) {
+            return $vars;
+        }
+
+        // By item type.
+        if ( 'type' === $vars['orderby'] ) {
+            return array_merge(
+                $vars,
+                array(
+                    'meta_key' => '_wpinv_type',
+                    'orderby'  => 'meta_value',
+                )
+            );
+        }
+
+        // By vat class.
+        if ( 'vat_class' === $vars['orderby'] ) {
+            return array_merge(
+                $vars,
+                array(
+                    'meta_key' => '_wpinv_vat_class',
+                    'orderby'  => 'meta_value',
+                )
+            );
+        }
+
+        // By vat rule.
+        if ( 'vat_rule' === $vars['orderby'] ) {
+            return array_merge(
+                $vars,
+                array(
+                    'meta_key' => '_wpinv_vat_rule',
+                    'orderby'  => 'meta_value',
+                )
+            );
+        }
+
+        // By price.
+        if ( 'price' === $vars['orderby'] ) {
+            return array_merge(
+                $vars,
+                array(
+                    'meta_key' => '_wpinv_price',
+                    'orderby'  => 'meta_value_num',
+                )
+            );
+        }
+
+        return $vars;
+
+    }
+
+    /**
+     * Fired when deleting a post.
+     */
+    public static function delete_post( $post_id ) {
+
+        switch ( get_post_type( $post_id ) ) {
+
+            case 'wpi_item':
+                do_action( 'getpaid_before_delete_item', new WPInv_Item( $post_id ) );
+                break;
+
+            case 'wpi_payment_form':
+                do_action( 'getpaid_before_delete_payment_form', new GetPaid_Payment_Form( $post_id ) );
+                break;
+
+            case 'wpi_discount':
+                do_action( 'getpaid_before_delete_discount', new WPInv_Discount( $post_id ) );
+                break;
+
+            case 'wpi_invoice':
+                $invoice = new WPInv_Invoice( $post_id );
+                do_action( 'getpaid_before_delete_invoice', $invoice );
+                $invoice->get_data_store()->delete_items( $invoice );
+                $invoice->get_data_store()->delete_special_fields( $invoice );
+                break;
+        }
+    }
+
+    /**
      * Add a post display state for special GetPaid pages in the page list table.
      *
      * @param array   $post_states An array of post display states.
@@ -895,21 +895,21 @@ 
             $post_states['getpaid_success_page'] = __( 'GetPaid Receipt Page', 'invoicing' );
         }
 
-		foreach ( getpaid_get_invoice_post_types() as $post_type => $label ) {
+        foreach ( getpaid_get_invoice_post_types() as $post_type => $label ) {
 
-			if ( wpinv_get_option( "{$post_type}_history_page", 0 ) == $post->ID ) {
-				$post_states[ "getpaid_{$post_type}_history_page" ] = sprintf(
-					__( 'GetPaid %s History Page', 'invoicing' ),
-					$label
-				);
-			}
+            if ( wpinv_get_option( "{$post_type}_history_page", 0 ) == $post->ID ) {
+                $post_states[ "getpaid_{$post_type}_history_page" ] = sprintf(
+                    __( 'GetPaid %s History Page', 'invoicing' ),
+                    $label
+                );
+            }
 }
 
-		if ( wpinv_get_option( 'invoice_subscription_page', 0 ) == $post->ID ) {
+        if ( wpinv_get_option( 'invoice_subscription_page', 0 ) == $post->ID ) {
             $post_states['getpaid_invoice_subscription_page'] = __( 'GetPaid Subscription Page', 'invoicing' );
         }
 
-		if ( wpinv_get_option( 'checkout_page', 0 ) == $post->ID ) {
+        if ( wpinv_get_option( 'checkout_page', 0 ) == $post->ID ) {
             $post_states['getpaid_checkout_page'] = __( 'GetPaid Checkout Page', 'invoicing' );
         }
 

Spacing +253 added lines, -253 removed lines

@@ -4,7 +4,7 @@ 
  *
  */
 
-defined( 'ABSPATH' ) || exit;
+defined('ABSPATH') || exit;
 
 /**
  * Post types Admin Class
@@ -21,74 +21,74 @@ 
 		GetPaid_Metaboxes::init();
 
 		// Filter the post updated messages.
-		add_filter( 'post_updated_messages', 'GetPaid_Post_Types_Admin::post_updated_messages' );
+		add_filter('post_updated_messages', 'GetPaid_Post_Types_Admin::post_updated_messages');
 
 		// Filter post actions.
-		add_filter( 'post_row_actions', 'GetPaid_Post_Types_Admin::post_row_actions', 10, 2 );
-		add_filter( 'post_row_actions', 'GetPaid_Post_Types_Admin::filter_invoice_row_actions', 90, 2 );
+		add_filter('post_row_actions', 'GetPaid_Post_Types_Admin::post_row_actions', 10, 2);
+		add_filter('post_row_actions', 'GetPaid_Post_Types_Admin::filter_invoice_row_actions', 90, 2);
 
 		// Invoice table columns.
-		add_filter( 'manage_wpi_invoice_posts_columns', array( __CLASS__, 'invoice_columns' ), 100 );
-		add_action( 'manage_wpi_invoice_posts_custom_column', array( __CLASS__, 'display_invoice_columns' ), 10, 2 );
-		add_filter( 'bulk_actions-edit-wpi_invoice', array( __CLASS__, 'invoice_bulk_actions' ) );
-		add_filter( 'handle_bulk_actions-edit-wpi_invoice', array( __CLASS__, 'handle_invoice_bulk_actions' ), 10, 3 );
+		add_filter('manage_wpi_invoice_posts_columns', array(__CLASS__, 'invoice_columns'), 100);
+		add_action('manage_wpi_invoice_posts_custom_column', array(__CLASS__, 'display_invoice_columns'), 10, 2);
+		add_filter('bulk_actions-edit-wpi_invoice', array(__CLASS__, 'invoice_bulk_actions'));
+		add_filter('handle_bulk_actions-edit-wpi_invoice', array(__CLASS__, 'handle_invoice_bulk_actions'), 10, 3);
 
 		// Items table columns.
-		add_filter( 'manage_wpi_item_posts_columns', array( __CLASS__, 'item_columns' ), 100 );
-		add_filter( 'manage_edit-wpi_item_sortable_columns', array( __CLASS__, 'sortable_item_columns' ), 20 );
-		add_action( 'manage_wpi_item_posts_custom_column', array( __CLASS__, 'display_item_columns' ), 10, 2 );
-		add_action( 'restrict_manage_posts', array( __CLASS__, 'add_item_filters' ), 100 );
-		add_action( 'parse_query', array( __CLASS__, 'filter_item_query' ), 100 );
-		add_action( 'request', array( __CLASS__, 'reorder_items' ), 100 );
+		add_filter('manage_wpi_item_posts_columns', array(__CLASS__, 'item_columns'), 100);
+		add_filter('manage_edit-wpi_item_sortable_columns', array(__CLASS__, 'sortable_item_columns'), 20);
+		add_action('manage_wpi_item_posts_custom_column', array(__CLASS__, 'display_item_columns'), 10, 2);
+		add_action('restrict_manage_posts', array(__CLASS__, 'add_item_filters'), 100);
+		add_action('parse_query', array(__CLASS__, 'filter_item_query'), 100);
+		add_action('request', array(__CLASS__, 'reorder_items'), 100);
 
 		// Payment forms columns.
-		add_filter( 'manage_wpi_payment_form_posts_columns', array( __CLASS__, 'payment_form_columns' ), 100 );
-		add_action( 'manage_wpi_payment_form_posts_custom_column', array( __CLASS__, 'display_payment_form_columns' ), 10, 2 );
-		add_filter( 'display_post_states', array( __CLASS__, 'filter_payment_form_state' ), 10, 2 );
+		add_filter('manage_wpi_payment_form_posts_columns', array(__CLASS__, 'payment_form_columns'), 100);
+		add_action('manage_wpi_payment_form_posts_custom_column', array(__CLASS__, 'display_payment_form_columns'), 10, 2);
+		add_filter('display_post_states', array(__CLASS__, 'filter_payment_form_state'), 10, 2);
 
 		// Discount table columns.
-		add_filter( 'manage_wpi_discount_posts_columns', array( __CLASS__, 'discount_columns' ), 100 );
-		add_filter( 'bulk_actions-edit-wpi_discount', '__return_empty_array', 100 );
+		add_filter('manage_wpi_discount_posts_columns', array(__CLASS__, 'discount_columns'), 100);
+		add_filter('bulk_actions-edit-wpi_discount', '__return_empty_array', 100);
 
 		// Deleting posts.
-		add_action( 'delete_post', array( __CLASS__, 'delete_post' ) );
-		add_filter( 'display_post_states', array( __CLASS__, 'filter_discount_state' ), 10, 2 );
+		add_action('delete_post', array(__CLASS__, 'delete_post'));
+		add_filter('display_post_states', array(__CLASS__, 'filter_discount_state'), 10, 2);
 
-		add_filter( 'display_post_states', array( __CLASS__, 'add_display_post_states' ), 10, 2 );
+		add_filter('display_post_states', array(__CLASS__, 'add_display_post_states'), 10, 2);
 	}
 
 	/**
 	 * Post updated messages.
 	 */
-	public static function post_updated_messages( $messages ) {
+	public static function post_updated_messages($messages) {
 		global $post;
 
 		$messages['wpi_discount'] = array(
 			0  => '',
-			1  => __( 'Discount updated.', 'invoicing' ),
-			2  => __( 'Custom field updated.', 'invoicing' ),
-			3  => __( 'Custom field deleted.', 'invoicing' ),
-			4  => __( 'Discount updated.', 'invoicing' ),
-			5  => isset( $_GET['revision'] ) ? wp_sprintf( __( 'Discount restored to revision from %s', 'invoicing' ), wp_post_revision_title( (int) $_GET['revision'], false ) ) : false,
-			6  => __( 'Discount updated.', 'invoicing' ),
-			7  => __( 'Discount saved.', 'invoicing' ),
-			8  => __( 'Discount submitted.', 'invoicing' ),
-			9  => wp_sprintf( __( 'Discount scheduled for: <strong>%1$s</strong>.', 'invoicing' ), date_i18n( __( 'M j, Y @ G:i', 'invoicing' ), strtotime( $post->post_date ) ) ),
-			10 => __( 'Discount draft updated.', 'invoicing' ),
+			1  => __('Discount updated.', 'invoicing'),
+			2  => __('Custom field updated.', 'invoicing'),
+			3  => __('Custom field deleted.', 'invoicing'),
+			4  => __('Discount updated.', 'invoicing'),
+			5  => isset($_GET['revision']) ? wp_sprintf(__('Discount restored to revision from %s', 'invoicing'), wp_post_revision_title((int) $_GET['revision'], false)) : false,
+			6  => __('Discount updated.', 'invoicing'),
+			7  => __('Discount saved.', 'invoicing'),
+			8  => __('Discount submitted.', 'invoicing'),
+			9  => wp_sprintf(__('Discount scheduled for: <strong>%1$s</strong>.', 'invoicing'), date_i18n(__('M j, Y @ G:i', 'invoicing'), strtotime($post->post_date))),
+			10 => __('Discount draft updated.', 'invoicing'),
 		);
 
 		$messages['wpi_payment_form'] = array(
 			0  => '',
-			1  => __( 'Payment Form updated.', 'invoicing' ),
-			2  => __( 'Custom field updated.', 'invoicing' ),
-			3  => __( 'Custom field deleted.', 'invoicing' ),
-			4  => __( 'Payment Form updated.', 'invoicing' ),
-			5  => isset( $_GET['revision'] ) ? wp_sprintf( __( 'Payment Form restored to revision from %s', 'invoicing' ), wp_post_revision_title( (int) $_GET['revision'], false ) ) : false,
-			6  => __( 'Payment Form updated.', 'invoicing' ),
-			7  => __( 'Payment Form saved.', 'invoicing' ),
-			8  => __( 'Payment Form submitted.', 'invoicing' ),
-			9  => wp_sprintf( __( 'Payment Form scheduled for: <strong>%1$s</strong>.', 'invoicing' ), date_i18n( __( 'M j, Y @ G:i', 'invoicing' ), strtotime( $post->post_date ) ) ),
-			10 => __( 'Payment Form draft updated.', 'invoicing' ),
+			1  => __('Payment Form updated.', 'invoicing'),
+			2  => __('Custom field updated.', 'invoicing'),
+			3  => __('Custom field deleted.', 'invoicing'),
+			4  => __('Payment Form updated.', 'invoicing'),
+			5  => isset($_GET['revision']) ? wp_sprintf(__('Payment Form restored to revision from %s', 'invoicing'), wp_post_revision_title((int) $_GET['revision'], false)) : false,
+			6  => __('Payment Form updated.', 'invoicing'),
+			7  => __('Payment Form saved.', 'invoicing'),
+			8  => __('Payment Form submitted.', 'invoicing'),
+			9  => wp_sprintf(__('Payment Form scheduled for: <strong>%1$s</strong>.', 'invoicing'), date_i18n(__('M j, Y @ G:i', 'invoicing'), strtotime($post->post_date))),
+			10 => __('Payment Form draft updated.', 'invoicing'),
 		);
 
 		return $messages;
@@ -98,16 +98,16 @@ 
 	/**
 	 * Post row actions.
 	 */
-	public static function post_row_actions( $actions, $post ) {
+	public static function post_row_actions($actions, $post) {
 
-		$post = get_post( $post );
+		$post = get_post($post);
 
 		// We do not want to edit the default payment form.
-		if ( 'wpi_payment_form' == $post->post_type ) {
+		if ('wpi_payment_form' == $post->post_type) {
 
-			if ( wpinv_get_default_payment_form() === $post->ID ) {
-				unset( $actions['trash'] );
-				unset( $actions['inline hide-if-no-js'] );
+			if (wpinv_get_default_payment_form() === $post->ID) {
+				unset($actions['trash']);
+				unset($actions['inline hide-if-no-js']);
 			}
 
 			$actions['duplicate'] = sprintf(
@@ -124,7 +124,7 @@ 
 						'getpaid-nonce'
 					)
 				),
-				esc_html( __( 'Duplicate', 'invoicing' ) )
+				esc_html(__('Duplicate', 'invoicing'))
 			);
 
 			$actions['reset'] = sprintf(
@@ -141,17 +141,17 @@ 
 						'getpaid-nonce'
 					)
 				),
-				esc_html( __( 'Reset Stats', 'invoicing' ) )
+				esc_html(__('Reset Stats', 'invoicing'))
 			);
 		}
 
 		// Link to item payment form.
-		if ( 'wpi_item' == $post->post_type ) {
-			if ( getpaid_item_type_supports( get_post_meta( $post->ID, '_wpinv_type', true ), 'buy_now' ) ) {
+		if ('wpi_item' == $post->post_type) {
+			if (getpaid_item_type_supports(get_post_meta($post->ID, '_wpinv_type', true), 'buy_now')) {
 				$actions['buy'] = sprintf(
 					'<a href="%1$s">%2$s</a>',
-					esc_url( getpaid_embed_url( false, $post->ID . '|0' ) ),
-					esc_html( __( 'Buy', 'invoicing' ) )
+					esc_url(getpaid_embed_url(false, $post->ID . '|0')),
+					esc_html(__('Buy', 'invoicing'))
 				);
 			}
 		}
@@ -167,28 +167,28 @@ 
 	 * @param WP_Post $post
      * @return array $actions actions without edit option
      */
-    public static function filter_invoice_row_actions( $actions, $post ) {
+    public static function filter_invoice_row_actions($actions, $post) {
 
-        if ( getpaid_is_invoice_post_type( $post->post_type ) ) {
+        if (getpaid_is_invoice_post_type($post->post_type)) {
 
 			$actions = array();
-			$invoice = new WPInv_Invoice( $post );
+			$invoice = new WPInv_Invoice($post);
 
 			$actions['edit'] = sprintf(
 				'<a href="%1$s">%2$s</a>',
-				esc_url( get_edit_post_link( $invoice->get_id() ) ),
-				esc_html( __( 'Edit', 'invoicing' ) )
+				esc_url(get_edit_post_link($invoice->get_id())),
+				esc_html(__('Edit', 'invoicing'))
 			);
 
-			if ( ! $invoice->is_draft() ) {
+			if (!$invoice->is_draft()) {
 
 				$actions['view'] = sprintf(
 					'<a href="%1$s">%2$s</a>',
-					esc_url( $invoice->get_view_url() ),
+					esc_url($invoice->get_view_url()),
 					sprintf(
 						// translators: %s is the invoice type
-						esc_html__( 'View %s', 'invoicing' ),
-						getpaid_get_post_type_label( $invoice->get_post_type(), false )
+						esc_html__('View %s', 'invoicing'),
+						getpaid_get_post_type_label($invoice->get_post_type(), false)
 					)
 				);
 
@@ -206,7 +206,7 @@ 
 							'getpaid-nonce'
 						)
 					),
-					esc_html( __( 'Send to Customer', 'invoicing' ) )
+					esc_html(__('Send to Customer', 'invoicing'))
 				);
 
 			}
@@ -225,7 +225,7 @@ 
 						'getpaid-nonce'
 					)
 				),
-				esc_html( __( 'Duplicate', 'invoicing' ) )
+				esc_html(__('Duplicate', 'invoicing'))
 			);
 
         }
@@ -236,59 +236,59 @@ 
 	/**
 	 * Returns an array of invoice table columns.
 	 */
-	public static function invoice_columns( $columns ) {
+	public static function invoice_columns($columns) {
 
 		$columns = array(
 			'cb'           => $columns['cb'],
-			'number'       => __( 'Invoice', 'invoicing' ),
-			'customer'     => __( 'Customer', 'invoicing' ),
-			'invoice_date' => __( 'Created', 'invoicing' ),
-			'payment_date' => __( 'Completed', 'invoicing' ),
-			'amount'       => __( 'Amount', 'invoicing' ),
-			'recurring'    => __( 'Recurring', 'invoicing' ),
-			'status'       => __( 'Status', 'invoicing' ),
+			'number'       => __('Invoice', 'invoicing'),
+			'customer'     => __('Customer', 'invoicing'),
+			'invoice_date' => __('Created', 'invoicing'),
+			'payment_date' => __('Completed', 'invoicing'),
+			'amount'       => __('Amount', 'invoicing'),
+			'recurring'    => __('Recurring', 'invoicing'),
+			'status'       => __('Status', 'invoicing'),
 		);
 
-		return apply_filters( 'wpi_invoice_table_columns', $columns );
+		return apply_filters('wpi_invoice_table_columns', $columns);
 	}
 
 	/**
 	 * Displays invoice table columns.
 	 */
-	public static function display_invoice_columns( $column_name, $post_id ) {
+	public static function display_invoice_columns($column_name, $post_id) {
 
-		$invoice = new WPInv_Invoice( $post_id );
+		$invoice = new WPInv_Invoice($post_id);
 
-		switch ( $column_name ) {
+		switch ($column_name) {
 
 			case 'invoice_date':
-				$date_time = esc_attr( $invoice->get_created_date() );
-				$date      = esc_html( getpaid_format_date_value( $date_time, '&mdash;', true ) );
-				echo wp_kses_post( "<span title='$date_time'>$date</span>" );
+				$date_time = esc_attr($invoice->get_created_date());
+				$date      = esc_html(getpaid_format_date_value($date_time, '&mdash;', true));
+				echo wp_kses_post("<span title='$date_time'>$date</span>");
 				break;
 
 			case 'payment_date':
-				if ( $invoice->is_paid() || $invoice->is_refunded() ) {
-					$date_time = esc_attr( $invoice->get_completed_date() );
-					$date      = esc_html( getpaid_format_date_value( $date_time, '&mdash;', true ) );
-					echo wp_kses_post( "<span title='$date_time'>$date</span>" );
+				if ($invoice->is_paid() || $invoice->is_refunded()) {
+					$date_time = esc_attr($invoice->get_completed_date());
+					$date      = esc_html(getpaid_format_date_value($date_time, '&mdash;', true));
+					echo wp_kses_post("<span title='$date_time'>$date</span>");
 
-					if ( $_gateway = $invoice->get_gateway() ) {
-						$gateway_label = wpinv_get_gateway_admin_label( $_gateway );
+					if ($_gateway = $invoice->get_gateway()) {
+						$gateway_label = wpinv_get_gateway_admin_label($_gateway);
 
-						if ( $transaction_url = $invoice->get_transaction_url() ) {
-							$gateway_label = '<a href="' . esc_url( $transaction_url ) . '" target="_blank" title="' . esc_attr__( 'Open transaction link', 'invoicing' ) . '">' . $gateway_label . '</a>';
+						if ($transaction_url = $invoice->get_transaction_url()) {
+							$gateway_label = '<a href="' . esc_url($transaction_url) . '" target="_blank" title="' . esc_attr__('Open transaction link', 'invoicing') . '">' . $gateway_label . '</a>';
 						}
 
-						$gateway = '<small class="meta bsui"><span class="fs-xs text-muted fst-normal">' . wp_sprintf( _x( 'Via %s', 'Paid via gateway', 'invoicing' ), $gateway_label ) . '</span></small>';
+						$gateway = '<small class="meta bsui"><span class="fs-xs text-muted fst-normal">' . wp_sprintf(_x('Via %s', 'Paid via gateway', 'invoicing'), $gateway_label) . '</span></small>';
 					} else {
 						$gateway = '';
 					}
 
-					$gateway = apply_filters( 'getpaid_admin_invoices_list_table_gateway', $gateway, $invoice );
+					$gateway = apply_filters('getpaid_admin_invoices_list_table_gateway', $gateway, $invoice);
 
-					if ( $gateway ) {
-						echo wp_kses_post( $gateway ); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
+					if ($gateway) {
+						echo wp_kses_post($gateway); // phpcs:ignore WordPress.Security.EscapeOutput.OutputNotEscaped
 					}
 				} else {
 					echo '&mdash;';
@@ -298,61 +298,61 @@ 
 
 			case 'amount':
 				$amount = $invoice->get_total();
-				$formated_amount = wp_kses_post( wpinv_price( $amount, $invoice->get_currency() ) );
+				$formated_amount = wp_kses_post(wpinv_price($amount, $invoice->get_currency()));
 
-				if ( $invoice->is_refunded() ) {
-					$refunded_amount = wpinv_price( 0, $invoice->get_currency() );
-					echo wp_kses_post( "<del>$formated_amount</del>&nbsp;<ins>$refunded_amount</ins>" );
+				if ($invoice->is_refunded()) {
+					$refunded_amount = wpinv_price(0, $invoice->get_currency());
+					echo wp_kses_post("<del>$formated_amount</del>&nbsp;<ins>$refunded_amount</ins>");
 				} else {
 
 					$discount = $invoice->get_total_discount();
 
-					if ( ! empty( $discount ) ) {
-						$new_amount = wpinv_price( $amount + $discount, $invoice->get_currency() );
-						echo wp_kses_post( "<del>$new_amount</del>&nbsp;<ins>$formated_amount</ins>" );
+					if (!empty($discount)) {
+						$new_amount = wpinv_price($amount + $discount, $invoice->get_currency());
+						echo wp_kses_post("<del>$new_amount</del>&nbsp;<ins>$formated_amount</ins>");
 					} else {
-						echo wp_kses_post( $formated_amount );
+						echo wp_kses_post($formated_amount);
 					}
 				}
 
 				break;
 
 			case 'status':
-				$status       = esc_html( $invoice->get_status() );
-				$status_label = esc_html( $invoice->get_status_nicename() );
+				$status       = esc_html($invoice->get_status());
+				$status_label = esc_html($invoice->get_status_nicename());
 
 				// If it is paid, show the gateway title.
-				if ( $invoice->is_paid() ) {
-					$gateway = esc_html( $invoice->get_gateway_title() );
-					$gateway = wp_sprintf( esc_attr__( 'Paid via %s', 'invoicing' ), esc_html( $gateway ) );
+				if ($invoice->is_paid()) {
+					$gateway = esc_html($invoice->get_gateway_title());
+					$gateway = wp_sprintf(esc_attr__('Paid via %s', 'invoicing'), esc_html($gateway));
 
-					echo wp_kses_post( "<mark class='wpi-help-tip getpaid-invoice-status $status' title='$gateway'><span>$status_label</span></mark>" );
+					echo wp_kses_post("<mark class='wpi-help-tip getpaid-invoice-status $status' title='$gateway'><span>$status_label</span></mark>");
 				} else {
-					echo wp_kses_post( "<mark class='getpaid-invoice-status $status'><span>$status_label</span></mark>" );
+					echo wp_kses_post("<mark class='getpaid-invoice-status $status'><span>$status_label</span></mark>");
 				}
 
 				// If it is not paid, display the overdue and view status.
-				if ( ! $invoice->is_paid() && ! $invoice->is_refunded() ) {
+				if (!$invoice->is_paid() && !$invoice->is_refunded()) {
 
 					// Invoice view status.
-					if ( wpinv_is_invoice_viewed( $invoice->get_id() ) ) {
-						echo '&nbsp;&nbsp;<i class="fa fa-eye wpi-help-tip" title="' . esc_attr__( 'Viewed by Customer', 'invoicing' ) . '"></i>';
+					if (wpinv_is_invoice_viewed($invoice->get_id())) {
+						echo '&nbsp;&nbsp;<i class="fa fa-eye wpi-help-tip" title="' . esc_attr__('Viewed by Customer', 'invoicing') . '"></i>';
 					} else {
-						echo '&nbsp;&nbsp;<i class="fa fa-eye-slash wpi-help-tip" title="' . esc_attr__( 'Not Viewed by Customer', 'invoicing' ) . '"></i>';
+						echo '&nbsp;&nbsp;<i class="fa fa-eye-slash wpi-help-tip" title="' . esc_attr__('Not Viewed by Customer', 'invoicing') . '"></i>';
 					}
 
 					// Display the overview status.
-					if ( wpinv_get_option( 'overdue_active' ) ) {
+					if (wpinv_get_option('overdue_active')) {
 						$due_date = $invoice->get_due_date();
-						$fomatted = getpaid_format_date( $due_date );
+						$fomatted = getpaid_format_date($due_date);
 
-						if ( ! empty( $fomatted ) ) {
+						if (!empty($fomatted)) {
 							$date = wp_sprintf(
 								// translators: %s is the due date.
-								__( 'Due %s', 'invoicing' ),
+								__('Due %s', 'invoicing'),
 								$fomatted
 							);
-							echo wp_kses_post( "<p class='description' style='color: #888;' title='$due_date'>$fomatted</p>" );
+							echo wp_kses_post("<p class='description' style='color: #888;' title='$due_date'>$fomatted</p>");
 						}
 					}
 				}
@@ -360,7 +360,7 @@ 
 				break;
 
 			case 'recurring':
-				if ( $invoice->is_recurring() ) {
+				if ($invoice->is_recurring()) {
 					echo '<i class="fa fa-check" style="color:#43850a;"></i>';
 				} else {
 					echo '<i class="fa fa-times" style="color:#616161;"></i>';
@@ -368,26 +368,26 @@ 
 				break;
 
 			case 'number':
-				$edit_link       = esc_url( get_edit_post_link( $invoice->get_id() ) );
-				$invoice_number  = esc_html( $invoice->get_number() );
-				$invoice_details = esc_attr__( 'View Invoice Details', 'invoicing' );
+				$edit_link       = esc_url(get_edit_post_link($invoice->get_id()));
+				$invoice_number  = esc_html($invoice->get_number());
+				$invoice_details = esc_attr__('View Invoice Details', 'invoicing');
 
-				echo wp_kses_post( "<a href='$edit_link' title='$invoice_details'><strong>$invoice_number</strong></a>" );
+				echo wp_kses_post("<a href='$edit_link' title='$invoice_details'><strong>$invoice_number</strong></a>");
 
-				do_action( 'getpaid_admin_table_invoice_number_column', $invoice );
+				do_action('getpaid_admin_table_invoice_number_column', $invoice);
 				break;
 
 			case 'customer':
 				$customer_name = $invoice->get_user_full_name();
 
-				if ( empty( $customer_name ) ) {
+				if (empty($customer_name)) {
 					$customer_name = $invoice->get_email();
 				}
 
-				if ( ! empty( $customer_name ) ) {
-					$customer_details = esc_attr__( 'View Customer Details', 'invoicing' );
-					$view_link        = esc_url( add_query_arg( 'user_id', $invoice->get_user_id(), admin_url( 'user-edit.php' ) ) );
-					echo wp_kses_post( "<a href='$view_link' title='$customer_details'><span>$customer_name</span></a>" );
+				if (!empty($customer_name)) {
+					$customer_details = esc_attr__('View Customer Details', 'invoicing');
+					$view_link        = esc_url(add_query_arg('user_id', $invoice->get_user_id(), admin_url('user-edit.php')));
+					echo wp_kses_post("<a href='$view_link' title='$customer_details'><span>$customer_name</span></a>");
 				} else {
 					echo '<div>&mdash;</div>';
 				}
@@ -401,19 +401,19 @@ 
 	/**
 	 * Displays invoice bulk actions.
 	 */
-	public static function invoice_bulk_actions( $actions ) {
-		$actions['resend-invoice'] = __( 'Send to Customer', 'invoicing' );
+	public static function invoice_bulk_actions($actions) {
+		$actions['resend-invoice'] = __('Send to Customer', 'invoicing');
 		return $actions;
 	}
 
 	/**
 	 * Processes invoice bulk actions.
 	 */
-	public static function handle_invoice_bulk_actions( $redirect_url, $action, $post_ids ) {
+	public static function handle_invoice_bulk_actions($redirect_url, $action, $post_ids) {
 
-		if ( 'resend-invoice' === $action ) {
-			foreach ( $post_ids as $post_id ) {
-				getpaid()->get( 'invoice_emails' )->user_invoice( new WPInv_Invoice( $post_id ), true );
+		if ('resend-invoice' === $action) {
+			foreach ($post_ids as $post_id) {
+				getpaid()->get('invoice_emails')->user_invoice(new WPInv_Invoice($post_id), true);
 			}
 		}
 
@@ -424,49 +424,49 @@ 
 	/**
 	 * Returns an array of payment forms table columns.
 	 */
-	public static function payment_form_columns( $columns ) {
+	public static function payment_form_columns($columns) {
 
 		$columns = array(
 			'cb'        => $columns['cb'],
-			'title'     => __( 'Name', 'invoicing' ),
-			'shortcode' => __( 'Shortcode', 'invoicing' ),
-			'earnings'  => __( 'Revenue', 'invoicing' ),
-			'refunds'   => __( 'Refunded', 'invoicing' ),
-			'items'     => __( 'Items', 'invoicing' ),
-			'date'      => __( 'Date', 'invoicing' ),
+			'title'     => __('Name', 'invoicing'),
+			'shortcode' => __('Shortcode', 'invoicing'),
+			'earnings'  => __('Revenue', 'invoicing'),
+			'refunds'   => __('Refunded', 'invoicing'),
+			'items'     => __('Items', 'invoicing'),
+			'date'      => __('Date', 'invoicing'),
 		);
 
-		return apply_filters( 'wpi_payment_form_table_columns', $columns );
+		return apply_filters('wpi_payment_form_table_columns', $columns);
 
 	}
 
 	/**
 	 * Displays payment form table columns.
 	 */
-	public static function display_payment_form_columns( $column_name, $post_id ) {
+	public static function display_payment_form_columns($column_name, $post_id) {
 
 		// Retrieve the payment form.
-		$form = new GetPaid_Payment_Form( $post_id );
+		$form = new GetPaid_Payment_Form($post_id);
 
-		switch ( $column_name ) {
+		switch ($column_name) {
 
 			case 'earnings':
-				echo wp_kses_post( wpinv_price( $form->get_earned() ) );
+				echo wp_kses_post(wpinv_price($form->get_earned()));
 				break;
 
 			case 'refunds':
-				echo wp_kses_post( wpinv_price( $form->get_refunded() ) );
+				echo wp_kses_post(wpinv_price($form->get_refunded()));
 				break;
 
 			case 'refunds':
-				echo wp_kses_post( wpinv_price( $form->get_refunded() ) );
+				echo wp_kses_post(wpinv_price($form->get_refunded()));
 				break;
 
 			case 'shortcode':
-				if ( $form->is_default() ) {
+				if ($form->is_default()) {
 					echo '&mdash;';
 				} else {
-					echo '<input onClick="this.select()" type="text" value="[getpaid form=' . esc_attr( $form->get_id() ) . ']" style="width: 100%;" readonly/>';
+					echo '<input onClick="this.select()" type="text" value="[getpaid form=' . esc_attr($form->get_id()) . ']" style="width: 100%;" readonly/>';
 				}
 
 				break;
@@ -474,28 +474,28 @@ 
 			case 'items':
 				$items = $form->get_items();
 
-				if ( $form->is_default() || empty( $items ) ) {
+				if ($form->is_default() || empty($items)) {
 					echo '&mdash;';
 					return;
 				}
 
 				$_items = array();
 
-				foreach ( $items as $item ) {
+				foreach ($items as $item) {
 					$url = $item->get_edit_url();
 
-					if ( empty( $url ) ) {
-						$_items[] = esc_html( $item->get_name() );
+					if (empty($url)) {
+						$_items[] = esc_html($item->get_name());
 					} else {
 						$_items[] = sprintf(
 							'<a href="%s">%s</a>',
-							esc_url( $url ),
-							esc_html( $item->get_name() )
+							esc_url($url),
+							esc_html($item->get_name())
 						);
 					}
 }
 
-				echo wp_kses_post( implode( '<br>', $_items ) );
+				echo wp_kses_post(implode('<br>', $_items));
 
 				break;
 
@@ -506,10 +506,10 @@ 
 	/**
 	 * Filters post states.
 	 */
-	public static function filter_payment_form_state( $post_states, $post ) {
+	public static function filter_payment_form_state($post_states, $post) {
 
-		if ( 'wpi_payment_form' === $post->post_type && wpinv_get_default_payment_form() === $post->ID ) {
-			$post_states['default_form'] = __( 'Default Payment Form', 'invoicing' );
+		if ('wpi_payment_form' === $post->post_type && wpinv_get_default_payment_form() === $post->ID) {
+			$post_states['default_form'] = __('Default Payment Form', 'invoicing');
 		}
 
 		return $post_states;
@@ -519,35 +519,35 @@ 
 	/**
 	 * Returns an array of coupon table columns.
 	 */
-	public static function discount_columns( $columns ) {
+	public static function discount_columns($columns) {
 
 		$columns = array(
 			'cb'          => $columns['cb'],
-			'title'       => __( 'Name', 'invoicing' ),
-			'code'        => __( 'Code', 'invoicing' ),
-			'amount'      => __( 'Amount', 'invoicing' ),
-			'usage'       => __( 'Usage / Limit', 'invoicing' ),
-			'start_date'  => __( 'Start Date', 'invoicing' ),
-			'expiry_date' => __( 'Expiry Date', 'invoicing' ),
+			'title'       => __('Name', 'invoicing'),
+			'code'        => __('Code', 'invoicing'),
+			'amount'      => __('Amount', 'invoicing'),
+			'usage'       => __('Usage / Limit', 'invoicing'),
+			'start_date'  => __('Start Date', 'invoicing'),
+			'expiry_date' => __('Expiry Date', 'invoicing'),
 		);
 
-		return apply_filters( 'wpi_discount_table_columns', $columns );
+		return apply_filters('wpi_discount_table_columns', $columns);
 	}
 
 	/**
 	 * Filters post states.
 	 */
-	public static function filter_discount_state( $post_states, $post ) {
+	public static function filter_discount_state($post_states, $post) {
 
-		if ( 'wpi_discount' === $post->post_type ) {
+		if ('wpi_discount' === $post->post_type) {
 
-			$discount = new WPInv_Discount( $post );
+			$discount = new WPInv_Discount($post);
 
 			$status = $discount->is_expired() ? 'expired' : $discount->get_status();
 
-			if ( 'publish' !== $status ) {
+			if ('publish' !== $status) {
 				return array(
-					'discount_status' => wpinv_discount_status( $status ),
+					'discount_status' => wpinv_discount_status($status),
 				);
 			}
 
@@ -562,30 +562,30 @@ 
 	/**
 	 * Returns an array of items table columns.
 	 */
-	public static function item_columns( $columns ) {
+	public static function item_columns($columns) {
 
 		$columns = array(
 			'cb'        => $columns['cb'],
-			'title'     => __( 'Name', 'invoicing' ),
-			'price'     => __( 'Price', 'invoicing' ),
-			'vat_rule'  => __( 'Tax Rule', 'invoicing' ),
-			'vat_class' => __( 'Tax Class', 'invoicing' ),
-			'type'      => __( 'Type', 'invoicing' ),
-			'shortcode' => __( 'Shortcode', 'invoicing' ),
+			'title'     => __('Name', 'invoicing'),
+			'price'     => __('Price', 'invoicing'),
+			'vat_rule'  => __('Tax Rule', 'invoicing'),
+			'vat_class' => __('Tax Class', 'invoicing'),
+			'type'      => __('Type', 'invoicing'),
+			'shortcode' => __('Shortcode', 'invoicing'),
 		);
 
-		if ( ! wpinv_use_taxes() ) {
-			unset( $columns['vat_rule'] );
-			unset( $columns['vat_class'] );
+		if (!wpinv_use_taxes()) {
+			unset($columns['vat_rule']);
+			unset($columns['vat_class']);
 		}
 
-		return apply_filters( 'wpi_item_table_columns', $columns );
+		return apply_filters('wpi_item_table_columns', $columns);
 	}
 
 	/**
 	 * Returns an array of sortable items table columns.
 	 */
-	public static function sortable_item_columns( $columns ) {
+	public static function sortable_item_columns($columns) {
 
 		return array_merge(
 			$columns,
@@ -602,45 +602,45 @@ 
 	/**
 	 * Displays items table columns.
 	 */
-	public static function display_item_columns( $column_name, $post_id ) {
+	public static function display_item_columns($column_name, $post_id) {
 
-		$item = new WPInv_Item( $post_id );
+		$item = new WPInv_Item($post_id);
 
-		switch ( $column_name ) {
+		switch ($column_name) {
 
 			case 'price':
-				if ( ! $item->is_recurring() ) {
-					echo wp_kses_post( $item->get_the_price() );
+				if (!$item->is_recurring()) {
+					echo wp_kses_post($item->get_the_price());
 					break;
 				}
 
 				$price = wp_sprintf(
-					__( '%1$s / %2$s', 'invoicing' ),
+					__('%1$s / %2$s', 'invoicing'),
 					$item->get_the_price(),
-					getpaid_get_subscription_period_label( $item->get_recurring_period(), $item->get_recurring_interval(), '' )
+					getpaid_get_subscription_period_label($item->get_recurring_period(), $item->get_recurring_interval(), '')
 				);
 
-				if ( $item->get_the_price() == $item->get_the_initial_price() ) {
-					echo wp_kses_post( $price );
+				if ($item->get_the_price() == $item->get_the_initial_price()) {
+					echo wp_kses_post($price);
 					break;
 				}
 
-				echo wp_kses_post( $item->get_the_initial_price() );
+				echo wp_kses_post($item->get_the_initial_price());
 
-				echo '<span class="meta">' . wp_sprintf( esc_html__( 'then %s', 'invoicing' ), wp_kses_post( $price ) ) . '</span>';
+				echo '<span class="meta">' . wp_sprintf(esc_html__('then %s', 'invoicing'), wp_kses_post($price)) . '</span>';
 				break;
 
 			case 'vat_rule':
-				echo wp_kses_post( getpaid_get_tax_rule_label( $item->get_vat_rule() ) );
+				echo wp_kses_post(getpaid_get_tax_rule_label($item->get_vat_rule()));
 				break;
 
 			case 'vat_class':
-				echo wp_kses_post( getpaid_get_tax_class_label( $item->get_vat_class() ) );
+				echo wp_kses_post(getpaid_get_tax_class_label($item->get_vat_class()));
 				break;
 
 			case 'shortcode':
-				if ( $item->is_type( array( '', 'fee', 'custom' ) ) ) {
-					echo '<input onClick="this.select()" type="text" value="[getpaid item=' . esc_attr( $item->get_id() ) . ' button=\'Buy Now\']" style="width: 100%;" readonly/>';
+				if ($item->is_type(array('', 'fee', 'custom'))) {
+					echo '<input onClick="this.select()" type="text" value="[getpaid item=' . esc_attr($item->get_id()) . ' button=\'Buy Now\']" style="width: 100%;" readonly/>';
 				} else {
 					echo '&mdash;';
 				}
@@ -648,7 +648,7 @@ 
 				break;
 
 			case 'type':
-				echo wp_kses_post( wpinv_item_type( $item->get_id() ) . '<span class="meta">' . $item->get_custom_singular_name() . '</span>' );
+				echo wp_kses_post(wpinv_item_type($item->get_id()) . '<span class="meta">' . $item->get_custom_singular_name() . '</span>');
 				break;
 
 		}
@@ -658,21 +658,21 @@ 
 	/**
 	 * Lets users filter items using taxes.
 	 */
-	public static function add_item_filters( $post_type ) {
+	public static function add_item_filters($post_type) {
 
 		// Abort if we're not dealing with items.
-		if ( 'wpi_item' !== $post_type ) {
+		if ('wpi_item' !== $post_type) {
 			return;
 		}
 
 		// Filter by vat rules.
-		if ( wpinv_use_taxes() ) {
+		if (wpinv_use_taxes()) {
 
 			// Sanitize selected vat rule.
 			$vat_rule   = '';
 			$vat_rules  = getpaid_get_tax_rules();
-			if ( isset( $_GET['vat_rule'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-				$vat_rule   = sanitize_text_field( $_GET['vat_rule'] ); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+			if (isset($_GET['vat_rule'])) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+				$vat_rule = sanitize_text_field($_GET['vat_rule']); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
 			}
 
 			// Filter by VAT rule.
@@ -680,13 +680,13 @@ 
 				array(
 					'options'          => array_merge(
 						array(
-							'' => __( 'All Tax Rules', 'invoicing' ),
+							'' => __('All Tax Rules', 'invoicing'),
 						),
 						$vat_rules
 					),
 					'name'             => 'vat_rule',
 					'id'               => 'vat_rule',
-					'selected'         => in_array( $vat_rule, array_keys( $vat_rules ), true ) ? $vat_rule : '',
+					'selected'         => in_array($vat_rule, array_keys($vat_rules), true) ? $vat_rule : '',
 					'show_option_all'  => false,
 					'show_option_none' => false,
 				)
@@ -697,21 +697,21 @@ 
 			// Sanitize selected vat rule.
 			$vat_class   = '';
 			$vat_classes = getpaid_get_tax_classes();
-			if ( isset( $_GET['vat_class'] ) ) {  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-				$vat_class   = sanitize_text_field( $_GET['vat_class'] );  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+			if (isset($_GET['vat_class'])) {  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+				$vat_class = sanitize_text_field($_GET['vat_class']); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
 			}
 
 			wpinv_html_select(
 				array(
 					'options'          => array_merge(
 						array(
-							'' => __( 'All Tax Classes', 'invoicing' ),
+							'' => __('All Tax Classes', 'invoicing'),
 						),
 						$vat_classes
 					),
 					'name'             => 'vat_class',
 					'id'               => 'vat_class',
-					'selected'         => in_array( $vat_class, array_keys( $vat_classes ), true ) ? $vat_class : '',
+					'selected'         => in_array($vat_class, array_keys($vat_classes), true) ? $vat_class : '',
 					'show_option_all'  => false,
 					'show_option_none' => false,
 				)
@@ -720,22 +720,22 @@ 
 		}
 
 		// Filter by item type.
-		$type   = '';
-		if ( isset( $_GET['type'] ) ) {  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
-			$type   = sanitize_text_field( $_GET['type'] );  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+		$type = '';
+		if (isset($_GET['type'])) {  // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+			$type = sanitize_text_field($_GET['type']); // phpcs:ignore WordPress.Security.NonceVerification.Recommended
 		}
 
 		wpinv_html_select(
 			array(
 				'options'          => array_merge(
 					array(
-						'' => __( 'All item types', 'invoicing' ),
+						'' => __('All item types', 'invoicing'),
 					),
 					wpinv_get_item_types()
 				),
 				'name'             => 'type',
 				'id'               => 'type',
-				'selected'         => in_array( $type, wpinv_item_types(), true ) ? $type : '',
+				'selected'         => in_array($type, wpinv_item_types(), true) ? $type : '',
 				'show_option_all'  => false,
 				'show_option_none' => false,
 			)
@@ -746,45 +746,45 @@ 
 	/**
 	 * Filters the item query.
 	 */
-	public static function filter_item_query( $query ) {
+	public static function filter_item_query($query) {
 
 		// modify the query only if it admin and main query.
-		if ( ! ( is_admin() && $query->is_main_query() ) ) {
+		if (!(is_admin() && $query->is_main_query())) {
 			return $query;
 		}
 
 		// we want to modify the query for our items.
-		if ( empty( $query->query['post_type'] ) || 'wpi_item' !== $query->query['post_type'] ) {
+		if (empty($query->query['post_type']) || 'wpi_item' !== $query->query['post_type']) {
 			return $query;
 		}
 
-		if ( empty( $query->query_vars['meta_query'] ) ) {
+		if (empty($query->query_vars['meta_query'])) {
 			$query->query_vars['meta_query'] = array();
 		}
 
 		// Filter vat rule type
-        if ( ! empty( $_GET['vat_rule'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+        if (!empty($_GET['vat_rule'])) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
             $query->query_vars['meta_query'][] = array(
                 'key'     => '_wpinv_vat_rule',
-                'value'   => sanitize_text_field( $_GET['vat_rule'] ), // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+                'value'   => sanitize_text_field($_GET['vat_rule']), // phpcs:ignore WordPress.Security.NonceVerification.Recommended
                 'compare' => '=',
             );
         }
 
         // Filter vat class
-        if ( ! empty( $_GET['vat_class'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+        if (!empty($_GET['vat_class'])) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
             $query->query_vars['meta_query'][] = array(
                 'key'     => '_wpinv_vat_class',
-                'value'   => sanitize_text_field( $_GET['vat_class'] ), // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+                'value'   => sanitize_text_field($_GET['vat_class']), // phpcs:ignore WordPress.Security.NonceVerification.Recommended
                 'compare' => '=',
             );
         }
 
         // Filter item type
-        if ( ! empty( $_GET['type'] ) ) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+        if (!empty($_GET['type'])) { // phpcs:ignore WordPress.Security.NonceVerification.Recommended
             $query->query_vars['meta_query'][] = array(
                 'key'     => '_wpinv_type',
-                'value'   => sanitize_text_field( $_GET['type'] ), // phpcs:ignore WordPress.Security.NonceVerification.Recommended
+                'value'   => sanitize_text_field($_GET['type']), // phpcs:ignore WordPress.Security.NonceVerification.Recommended
                 'compare' => '=',
             );
 		}
@@ -798,15 +798,15 @@ 
 	/**
 	 * Reorders items.
 	 */
-	public static function reorder_items( $vars ) {
+	public static function reorder_items($vars) {
 		global $typenow;
 
-		if ( 'wpi_item' !== $typenow || empty( $vars['orderby'] ) ) {
+		if ('wpi_item' !== $typenow || empty($vars['orderby'])) {
 			return $vars;
 		}
 
 		// By item type.
-		if ( 'type' === $vars['orderby'] ) {
+		if ('type' === $vars['orderby']) {
 			return array_merge(
 				$vars,
 				array(
@@ -817,7 +817,7 @@ 
 		}
 
 		// By vat class.
-		if ( 'vat_class' === $vars['orderby'] ) {
+		if ('vat_class' === $vars['orderby']) {
 			return array_merge(
 				$vars,
 				array(
@@ -828,7 +828,7 @@ 
 		}
 
 		// By vat rule.
-		if ( 'vat_rule' === $vars['orderby'] ) {
+		if ('vat_rule' === $vars['orderby']) {
 			return array_merge(
 				$vars,
 				array(
@@ -839,7 +839,7 @@ 
 		}
 
 		// By price.
-		if ( 'price' === $vars['orderby'] ) {
+		if ('price' === $vars['orderby']) {
 			return array_merge(
 				$vars,
 				array(
@@ -856,27 +856,27 @@ 
 	/**
 	 * Fired when deleting a post.
 	 */
-	public static function delete_post( $post_id ) {
+	public static function delete_post($post_id) {
 
-		switch ( get_post_type( $post_id ) ) {
+		switch (get_post_type($post_id)) {
 
 			case 'wpi_item':
-				do_action( 'getpaid_before_delete_item', new WPInv_Item( $post_id ) );
+				do_action('getpaid_before_delete_item', new WPInv_Item($post_id));
 				break;
 
 			case 'wpi_payment_form':
-				do_action( 'getpaid_before_delete_payment_form', new GetPaid_Payment_Form( $post_id ) );
+				do_action('getpaid_before_delete_payment_form', new GetPaid_Payment_Form($post_id));
 				break;
 
 			case 'wpi_discount':
-				do_action( 'getpaid_before_delete_discount', new WPInv_Discount( $post_id ) );
+				do_action('getpaid_before_delete_discount', new WPInv_Discount($post_id));
 				break;
 
 			case 'wpi_invoice':
-				$invoice = new WPInv_Invoice( $post_id );
-				do_action( 'getpaid_before_delete_invoice', $invoice );
-				$invoice->get_data_store()->delete_items( $invoice );
-				$invoice->get_data_store()->delete_special_fields( $invoice );
+				$invoice = new WPInv_Invoice($post_id);
+				do_action('getpaid_before_delete_invoice', $invoice);
+				$invoice->get_data_store()->delete_items($invoice);
+				$invoice->get_data_store()->delete_special_fields($invoice);
 				break;
 		}
 	}
@@ -889,28 +889,28 @@ 
      *
      * @return mixed
      */
-    public static function add_display_post_states( $post_states, $post ) {
+    public static function add_display_post_states($post_states, $post) {
 
-        if ( wpinv_get_option( 'success_page', 0 ) == $post->ID ) {
-            $post_states['getpaid_success_page'] = __( 'GetPaid Receipt Page', 'invoicing' );
+        if (wpinv_get_option('success_page', 0) == $post->ID) {
+            $post_states['getpaid_success_page'] = __('GetPaid Receipt Page', 'invoicing');
         }
 
-		foreach ( getpaid_get_invoice_post_types() as $post_type => $label ) {
+		foreach (getpaid_get_invoice_post_types() as $post_type => $label) {
 
-			if ( wpinv_get_option( "{$post_type}_history_page", 0 ) == $post->ID ) {
-				$post_states[ "getpaid_{$post_type}_history_page" ] = sprintf(
-					__( 'GetPaid %s History Page', 'invoicing' ),
+			if (wpinv_get_option("{$post_type}_history_page", 0) == $post->ID) {
+				$post_states["getpaid_{$post_type}_history_page"] = sprintf(
+					__('GetPaid %s History Page', 'invoicing'),
 					$label
 				);
 			}
 }
 
-		if ( wpinv_get_option( 'invoice_subscription_page', 0 ) == $post->ID ) {
-            $post_states['getpaid_invoice_subscription_page'] = __( 'GetPaid Subscription Page', 'invoicing' );
+		if (wpinv_get_option('invoice_subscription_page', 0) == $post->ID) {
+            $post_states['getpaid_invoice_subscription_page'] = __('GetPaid Subscription Page', 'invoicing');
         }
 
-		if ( wpinv_get_option( 'checkout_page', 0 ) == $post->ID ) {
-            $post_states['getpaid_checkout_page'] = __( 'GetPaid Checkout Page', 'invoicing' );
+		if (wpinv_get_option('checkout_page', 0) == $post->ID) {
+            $post_states['getpaid_checkout_page'] = __('GetPaid Checkout Page', 'invoicing');
         }
 
         return $post_states;