refactor: improve translation handling

backend/options.php

@@ -487,7 +487,7 @@ function ppom_load_pro_options() {
 		'ppom-enf-btn-class'      => array(
 			'type'  => 'text',
 			'title' => __( 'Button Class', 'woocommerce-product-addon' ),
-			'desc'  => __( ' Add custom CSS classes to the enquiry form button, separated by commas.', 'woocommerce-product-addon' ),
+			'desc'  => __( 'Add custom CSS classes to the enquiry form button, separated by commas.', 'woocommerce-product-addon' ),
 		),
 		'ppom-enf-btn-text-color' => array(
 			'type'  => 'color',

backend/templates/admin-settings.php

@@ -99,7 +99,13 @@ class="nmsf-label <?php  echo ! $is_available ? 'ppom-is-locked-section' : ''; ?
 											<div class="nmsf-panel-settings-area <?php  echo ! $is_available ? 'ppom-is-locked-panel' : ''; ?>">
                                                 <?php if ( ! $is_available ): ?>
                                                     <div class="ppom-notice-upsell"><p>
-                                                            <?php echo sprintf( __( '%s customization is not available on your current plan. %sUpgrade to the Pro%s plan to unlock the ability to fully enable and customize this functionality.', 'woocommerce-product-addon' ), esc_html( $title ), sprintf( '<a href="%s" target="_blank">', esc_url( tsdk_utmify( PPOM_UPGRADE_URL, $id ) ) ), '</a>' ); ?>
+                                                            <?php echo sprintf( 
+																// translators: %1$s: the name of plugin feature, %2$s: opening anchor tag, %3$s: closing anchor tag.
+																__( '%1$s customization is not available on your current plan. %2$sUpgrade to the Pro%2$s plan to unlock the ability to fully enable and customize this functionality.', 'woocommerce-product-addon' ),
+																esc_html( $title ),
+																sprintf( '<a href="%s" target="_blank">', esc_url( tsdk_translate_link( tsdk_utmify( PPOM_UPGRADE_URL, $id ) ) ) ),
+																'</a>'
+															); ?>
                                                         </p>
                                                     </div>
                                                 <?php endif; ?>
@@ -142,7 +148,13 @@ class="<?php echo $condition_class; ?>"
 																	<td class="nmsf-section-type" colspan="2">
 																		<?php if ( $is_available && !$is_input_available ): ?>
                                                                             <div class="ppom-notice-upsell"><p>
-																					<?php echo sprintf( __( '%s customization is not available on your current plan. %sUpgrade to the Pro%s plan to unlock the ability to fully enable and customize this functionality.', 'woocommerce-product-addon' ), esc_html( $title ), sprintf( '<a href="%s" target="_blank">', esc_url( tsdk_utmify( PPOM_UPGRADE_URL, $id ) ) ), '</a>' ); ?>
+																					<?php echo sprintf(
+																						// translators: %1$s: the name of plugin feature, %2$s: opening anchor tag, %3$s: closing anchor tag.
+																						__( '%1$s customization is not available on your current plan. %2$sUpgrade to the Pro%3$s plan to unlock the ability to fully enable and customize this functionality.', 'woocommerce-product-addon' ),
+																						esc_html( $title ),
+																						sprintf( '<a href="%s" target="_blank">', esc_url( tsdk_translate_link( tsdk_utmify( PPOM_UPGRADE_URL, $id ) ) ) ),
+																						'</a>' 
+																					); ?>
                                                                                 </p>
                                                                             </div>
 																		<?php endif; ?>

classes/admin.class.php

@@ -150,7 +150,7 @@ function add_menu_pages() {
 
 				$menu = add_submenu_page(
 					$page ['parent_slug'],
-					__( $page ['page_title'], 'woocommerce-product-addon' ),
+					$page ['page_title'],
 					__( 'PPOM Fields', 'woocommerce-product-addon' ),
 					$cap,
 					$page ['slug'],
@@ -165,7 +165,7 @@ function add_menu_pages() {
 				$cap = 'ppom_options_page';
 				// Menu page for roles set by PPOM Permission Settings
 				$menu = add_menu_page(
-					__( $page ['page_title'], 'woocommerce-product-addon' ),
+					$page ['page_title'],
 					__( 'PPOM Fields', 'woocommerce-product-addon' ),
 					$cap,
 					$page ['slug'],
@@ -270,7 +270,14 @@ function get_products() {
 		$ppom_id                      = intval( $_GET['ppom_id'] );
 		$license_status               = apply_filters( 'product_ppom_license_status', '' );
 		$current_saved_value          = $this->get_db_field( $ppom_id );
-		$pro_multiple_fields          = ! ppom_pro_is_installed() || 'valid' !== $license_status ? '</br><i style="font-size: 90%">' . sprintf( __( 'Your current plan supports adding one group of fields per product. To add multiple groups to the same product, please %supgrade%s your plan!', 'woocommerce-product-addon' ), '<a target="_blank" href="' . tsdk_utmify( tsdk_translate_link( PPOM_UPGRADE_URL ), 'multiple-fields' ) . '">', '</a>' ) . '</i>' : '';
+		$pro_multiple_fields          = ! ppom_pro_is_installed() || 'valid' !== $license_status 
+			? '</br><i style="font-size: 90%">' . sprintf(
+				// translators: %1$s: the opening tag for upsell link, %2$s: the closing tag for upsell link.
+				__( 'Your current plan supports adding one group of fields per product. To add multiple groups to the same product, please %1$supgrade%2$s your plan!', 'woocommerce-product-addon' ),
+				'<a target="_blank" href="' . tsdk_utmify( tsdk_translate_link( PPOM_UPGRADE_URL ), 'multiple-fields' ) . '">',
+				'</a>'
+			) . '</i>'
+			: '';
 		$select_products_id_component = ( new \PPOM\Attach\SelectComponent() )
 			->set_id( 'attach-to-products' )
 			->set_title( __( 'Display on Specific Products', 'woocommerce-product-addon' ) )
@@ -635,7 +642,13 @@ function ppom_attach_ppoms() {
 		self::save_categories_and_tags( $ppom_id, $categories_to_attach, $tags_to_attach );
 
 		$response = array(
-			'message' => "PPOM updated for {$updated_products} Products, {$updated_cat} Categories and {$updated_tags} Tags.",
+			'message' => sprintf(
+				// translators: %1$d: number of products, %2$d: number of categories, %3$d: number of tags.
+				__('PPOM updated for %1$d Products, %2$d Categories and %3$d Tags.', 'woocommerce-product-addon'),
+				$updated_products,
+				$updated_cat, 
+				$updated_tags
+			),
 			'status'  => 'success',
 		);
 
@@ -680,10 +693,8 @@ function validate_plugin() {
 
 		echo '<div class="wrap">';
 		echo '<h2>' . __( 'Provide API key below:', 'woocommerce-product-addon' ) . '</h2>';
-		echo '<p>' . __( 'If you don\'t know your API key, please login into your: <a target="_blank" href="http://wordpresspoets.com/member-area">Member area</a>', 'woocommerce-product-addon' ) . '</p>';
-
 		echo '<form onsubmit="return validate_api_wooproduct(this)">';
-		echo '<p><label id="plugin_api_key">' . __( 'Entery API key', 'woocommerce-product-addon' ) . ':</label><br /><input type="text" name="plugin_api_key" id="plugin_api_key" /></p>';
+		echo '<p><label id="plugin_api_key">' . __( 'Enter API key', 'woocommerce-product-addon' ) . ':</label><br /><input type="text" name="plugin_api_key" id="plugin_api_key" /></p>';
 		wp_nonce_field();
 		echo '<p><input type="submit" class="button-primary button" name="plugin_api_key" /></p>';
 		echo '<p id="nm-sending-api"></p>';

classes/attach-popup/container-view.class.php

@@ -12,7 +12,7 @@ class ContainerView {
 	 * @return string
 	 */
 	public function render() {
-		return 'Empty!';
+		return '';
 	}
 
 	/**