wc-composable-product/includes/Admin/ProductData.php

<?php
/**
 * Product Data Tab
 *
 * @package Magdev\WcComposableProduct
 */

namespace Magdev\WcComposableProduct\Admin;

defined( 'ABSPATH' ) || exit;

/**
 * Product Data Tab Class
 */
class ProductData {
	/**
	 * Constructor
	 */
	public function __construct() {
		add_filter( 'woocommerce_product_data_tabs', array( $this, 'add_product_data_tab' ) );
		add_action( 'woocommerce_product_data_panels', array( $this, 'add_product_data_panel' ) );
		add_action( 'woocommerce_process_product_meta_composable', array( $this, 'save_product_data' ) );
		add_action( 'woocommerce_product_options_general_product_data', array( $this, 'add_general_fields' ) );
	}

	/**
	 * Add composable products tab
	 *
	 * @param array $tabs Product data tabs
	 * @return array
	 */
	public function add_product_data_tab( $tabs ) {
		$tabs['composable'] = array(
			'label'    => __( 'Composable Options', 'wc-composable-product' ),
			'target'   => 'composable_product_data',
			'class'    => array( 'show_if_composable' ),
			'priority' => 21,
		);
		return $tabs;
	}

	/**
	 * Add fields to general tab
	 */
	public function add_general_fields() {
		global $product_object;

		if ( $product_object && $product_object->get_type() === 'composable' ) {
			echo '<div class="options_group show_if_composable">';

			woocommerce_wp_text_input(
				array(
					'id'                => '_composable_selection_limit',
					'label'             => __( 'Selection Limit', 'wc-composable-product' ),
					'description'       => __( 'Maximum number of items customers can select. Leave empty to use global default.', 'wc-composable-product' ),
					'desc_tip'          => true,
					'type'              => 'number',
					'custom_attributes' => array(
						'min'  => '1',
						'step' => '1',
					),
				)
			);

			woocommerce_wp_select(
				array(
					'id'          => '_composable_pricing_mode',
					'label'       => __( 'Pricing Mode', 'wc-composable-product' ),
					'description' => __( 'How to calculate the price.', 'wc-composable-product' ),
					'desc_tip'    => true,
					'options'     => array(
						''      => __( 'Use global default', 'wc-composable-product' ),
						'sum'   => __( 'Sum of selected products', 'wc-composable-product' ),
						'fixed' => __( 'Fixed price', 'wc-composable-product' ),
					),
				)
			);

			woocommerce_wp_text_input(
				array(
					'id'            => '_regular_price',
					'label'         => __( 'Fixed Price', 'wc-composable-product' ) . ' (' . get_woocommerce_currency_symbol() . ')',
					'description'   => __( 'Enter the fixed price for this composable product.', 'wc-composable-product' ),
					'desc_tip'      => true,
					'type'          => 'text',
					'data_type'     => 'price',
					'wrapper_class' => 'composable_fixed_price_field',
				)
			);

			echo '</div>';
		}
	}

	/**
	 * Add product data panel
	 */
	public function add_product_data_panel() {
		global $post;
		?>
		<div id="composable_product_data" class="panel woocommerce_options_panel hidden">
			<div class="options_group">
				<?php
				woocommerce_wp_select(
					array(
						'id'          => '_composable_include_unpublished',
						'label'       => __( 'Include Non-Public Products', 'wc-composable-product' ),
						'description' => __( 'Allow draft and private products in the selection. Useful when products should only be sold as part of a composition.', 'wc-composable-product' ),
						'desc_tip'    => true,
						'options'     => array(
							''    => __( 'Use global default', 'wc-composable-product' ),
							'yes' => __( 'Yes', 'wc-composable-product' ),
							'no'  => __( 'No', 'wc-composable-product' ),
						),
						'value'       => get_post_meta( $post->ID, '_composable_include_unpublished', true ) ? get_post_meta( $post->ID, '_composable_include_unpublished', true ) : '',
					)
				);

				woocommerce_wp_select(
					array(
						'id'          => '_composable_criteria_type',
						'label'       => __( 'Selection Criteria', 'wc-composable-product' ),
						'description' => __( 'How to select available products.', 'wc-composable-product' ),
						'desc_tip'    => true,
						'options'     => array(
							'category' => __( 'By Category', 'wc-composable-product' ),
							'tag'      => __( 'By Tag', 'wc-composable-product' ),
							'sku'      => __( 'By SKU', 'wc-composable-product' ),
						),
						'value'       => get_post_meta( $post->ID, '_composable_criteria_type', true ) ? get_post_meta( $post->ID, '_composable_criteria_type', true ) : 'category',
					)
				);
				?>
			</div>

			<div class="options_group composable_criteria_group" id="composable_criteria_category">
				<p class="form-field">
					<label for="_composable_categories"><?php esc_html_e( 'Select Categories', 'wc-composable-product' ); ?></label>
					<select id="_composable_categories" name="_composable_categories[]" class="wc-enhanced-select" multiple="multiple" style="width: 50%;">
						<?php
						$selected_categories = get_post_meta( $post->ID, '_composable_categories', true );
						$selected_categories = $selected_categories ? $selected_categories : array();
						$categories          = get_terms(
							array(
								'taxonomy'   => 'product_cat',
								'hide_empty' => false,
							)
						);
						foreach ( $categories as $category ) {
							printf(
								'<option value="%s" %s>%s</option>',
								esc_attr( $category->term_id ),
								selected( in_array( $category->term_id, (array) $selected_categories, true ), true, false ),
								esc_html( $category->name )
							);
						}
						?>
					</select>
					<span class="description"><?php esc_html_e( 'Select product categories to include.', 'wc-composable-product' ); ?></span>
				</p>
			</div>

			<div class="options_group composable_criteria_group" id="composable_criteria_tag" style="display: none;">
				<p class="form-field">
					<label for="_composable_tags"><?php esc_html_e( 'Select Tags', 'wc-composable-product' ); ?></label>
					<select id="_composable_tags" name="_composable_tags[]" class="wc-enhanced-select" multiple="multiple" style="width: 50%;">
						<?php
						$selected_tags = get_post_meta( $post->ID, '_composable_tags', true );
						$selected_tags = $selected_tags ? $selected_tags : array();
						$tags          = get_terms(
							array(
								'taxonomy'   => 'product_tag',
								'hide_empty' => false,
							)
						);
						foreach ( $tags as $tag ) {
							printf(
								'<option value="%s" %s>%s</option>',
								esc_attr( $tag->term_id ),
								selected( in_array( $tag->term_id, (array) $selected_tags, true ), true, false ),
								esc_html( $tag->name )
							);
						}
						?>
					</select>
					<span class="description"><?php esc_html_e( 'Select product tags to include.', 'wc-composable-product' ); ?></span>
				</p>
			</div>

			<div class="options_group composable_criteria_group" id="composable_criteria_sku" style="display: none;">
				<?php
				woocommerce_wp_textarea_input(
					array(
						'id'          => '_composable_skus',
						'label'       => __( 'Product SKUs', 'wc-composable-product' ),
						'description' => __( 'Enter product SKUs separated by commas.', 'wc-composable-product' ),
						'desc_tip'    => true,
						'placeholder' => __( 'SKU-1, SKU-2, SKU-3', 'wc-composable-product' ),
					)
				);
				?>
			</div>
		</div>
		<?php
	}

	/**
	 * Save product data
	 *
	 * @param int $post_id Post ID
	 */
	public function save_product_data( $post_id ) {
		// phpcs:disable WordPress.Security.NonceVerification.Missing -- nonce verified by WooCommerce in woocommerce_process_product_meta.

		// Save selection limit.
		$selection_limit = isset( $_POST['_composable_selection_limit'] ) ? absint( $_POST['_composable_selection_limit'] ) : '';
		update_post_meta( $post_id, '_composable_selection_limit', $selection_limit );

		// Save pricing mode.
		$pricing_mode = isset( $_POST['_composable_pricing_mode'] ) ? sanitize_text_field( $_POST['_composable_pricing_mode'] ) : '';
		update_post_meta( $post_id, '_composable_pricing_mode', $pricing_mode );

		// Save include unpublished.
		$include_unpublished = isset( $_POST['_composable_include_unpublished'] ) ? sanitize_text_field( $_POST['_composable_include_unpublished'] ) : '';
		update_post_meta( $post_id, '_composable_include_unpublished', $include_unpublished );

		// Save criteria type.
		$criteria_type = isset( $_POST['_composable_criteria_type'] ) ? sanitize_text_field( $_POST['_composable_criteria_type'] ) : 'category';
		update_post_meta( $post_id, '_composable_criteria_type', $criteria_type );

		// Save categories.
		$categories = isset( $_POST['_composable_categories'] ) ? array_map( 'absint', $_POST['_composable_categories'] ) : array();
		update_post_meta( $post_id, '_composable_categories', $categories );

		// Save tags.
		$tags = isset( $_POST['_composable_tags'] ) ? array_map( 'absint', $_POST['_composable_tags'] ) : array();
		update_post_meta( $post_id, '_composable_tags', $tags );

		// Save SKUs.
		$skus = isset( $_POST['_composable_skus'] ) ? sanitize_textarea_field( $_POST['_composable_skus'] ) : '';
		update_post_meta( $post_id, '_composable_skus', $skus );

		// phpcs:enable WordPress.Security.NonceVerification.Missing
	}
}