Add package addons and options

backend/app/plugins/wiaas/includes/admin/package/class-wiaas-admin-package-addon.php

@@ -0,0 +1,76 @@
+<?php
+
+class Wiaas_Admin_Package_Addon {
+
+	public static function init() {
+		add_action( 'woocommerce_product_data_tabs', array( __CLASS__, 'package_data_tabs' ) );
+		add_action( 'woocommerce_product_data_panels', array( __CLASS__, 'package_data_panel' ) );
+
+		add_action( 'woocommerce_process_product_meta', array( __CLASS__, 'process_meta_box' ));
+	}
+
+	public static function package_data_tabs($tabs) {
+		$tabs[ 'bundled_packages_addons' ] = array(
+			'label'    => __( 'Add-ons', 'wiaas' ),
+			'target'   => 'wiaas_package_addons',
+			'class'    => array( 'show_if_bundle', 'bundled_package_tab' ),
+			'priority' => 50
+		);
+
+		return $tabs;
+	}
+
+	public static function package_data_panel() {
+
+		global $post;
+		$package           = wc_get_product( $post->ID );
+
+		$addons = Wiaas_Package_Addon::get_package_addons($package);
+
+		?>
+		<div id="wiaas_package_addons" class="panel woocommerce_options_panel wc_gte_30">
+			<div class="options_group">
+				<p class="form-field">
+					<label for="wiaas_addon_packages"><?php esc_html_e( 'Additional packages:', 'wiaas' ); ?></label>
+					<select
+						class="wc-product-search"
+						multiple="multiple"
+						style="width: 50%;"
+						id="wiaas_addon_packages"
+						name="wiaas_addon_packages[]"
+						data-sortable="true"
+						data-placeholder="<?php esc_attr_e( 'Search for a product&hellip;', 'wiaas' ); ?>"
+						data-action="woocommerce_json_search_products"
+						data-exclude="<?php echo intval( $package->get_id() ); ?>">
+						<?php
+						foreach ( $addons as $addon ) {
+							echo '<option value="' . esc_attr( $addon->get_id() ) . '"' . selected( true, true, false ) . '>' . wp_kses_post( $addon->get_formatted_name() ) . '</option>';
+						}
+						?>
+					</select>
+					<?php echo wc_help_tip( __( 'This lets you choose which packages will be available as addons.', 'wiaas' ) );?>
+				</p>
+			</div>
+		</div>
+		<?php
+	}
+
+	public static function meta_box_javascript() {
+
+	}
+
+	public static function process_meta_box($package_id) {
+
+		$package = wc_get_product($package_id);
+
+		$addons_ids = isset( $_POST['wiaas_addon_packages'] ) ?
+			array_filter( array_map( 'intval', (array) $_POST['wiaas_addon_packages'] ) ) :
+			array();
+
+		Wiaas_Package_Addon::set_package_addons(
+			$package,
+			$addons_ids);
+	}
+}
+
+Wiaas_Admin_Package_Addon::init();