qdr.app.woo.plugins/studiou-wc-mandatory-products/includes/class-studiou-wcmp-admin.php

<?php
/**
 * StudioU WC Mandatory Products Admin
 * 
 * @package StudioU_WC_Mandatory_Products
 */

// Exit if accessed directly
if (!defined('ABSPATH')) {
    exit;
}

class StudioU_WCMP_Admin {

    /**
     * Constructor
     */
    public function __construct() {
        // Nothing to do at constructor
    }

    /**
     * Initialize hooks
     */
    public function init() {
        // Add fields to product category edit page
        add_action('product_cat_edit_form_fields', array($this, 'add_category_fields'), 20);
        
        // Add fields to product category add page
        add_action('product_cat_add_form_fields', array($this, 'add_category_fields_new'), 20);
        
        // Save category fields
        add_action('edited_product_cat', array($this, 'save_category_fields'), 20);
        add_action('created_product_cat', array($this, 'save_category_fields'), 20);
        
        // Add admin scripts and styles
        add_action('admin_enqueue_scripts', array($this, 'enqueue_admin_scripts'));
        
        // Add product meta box to show mandatory products info
        add_action('add_meta_boxes', array($this, 'add_product_meta_boxes'));
    }

    /**
     * Add fields to product category edit form
     * 
     * @param object $term The term object
     */
    public function add_category_fields($term) {
        // Get current value
        $mandatory_products = get_term_meta($term->term_id, 'mandatory_products', true);
        
        // If not array, initialize it
        if (!is_array($mandatory_products)) {
            $mandatory_products = array();
        }
        ?>
        <tr class="form-field">
            <th scope="row" valign="top">
                <label><?php _e('Mandatory Products', 'studiou-wc-product-cat-manage'); ?></label>
            </th>
            <td>
                <div id="studiou_mandatory_products_container">
                    <?php if (!empty($mandatory_products)) : ?>
                        <?php foreach ($mandatory_products as $index => $mandatory_product) : 
                            $product_id = isset($mandatory_product['product_id']) ? absint($mandatory_product['product_id']) : 0;
                            $quantity = isset($mandatory_product['quantity']) ? absint($mandatory_product['quantity']) : 1;
                            $type = isset($mandatory_product['type']) ? sanitize_text_field($mandatory_product['type']) : 'OnePerCart';
                            $product_title = '';
                            
                            if ($product_id > 0) {
                                $product = wc_get_product($product_id);
                                if ($product) {
                                    $product_title = $product->get_formatted_name();
                                }
                            }
                        ?>
                            <div class="mandatory-product-row" style="margin-bottom: 10px; padding: 10px; border: 1px solid #ddd; background: #f9f9f9;">
                                <p>
                                    <label><?php _e('Product:', 'studiou-wc-product-cat-manage'); ?></label>
                                    <select 
                                        class="wc-product-search" 
                                        style="width: 50%;" 
                                        name="mandatory_product_id[]" 
                                        data-placeholder="<?php esc_attr_e('Search for a product&hellip;', 'studiou-wc-product-cat-manage'); ?>" 
                                        data-action="woocommerce_json_search_products_and_variations" 
                                        data-allow_clear="true"
                                    >
                                        <?php if ($product_id && $product_title) : ?>
                                            <option value="<?php echo esc_attr($product_id); ?>" selected="selected"><?php echo esc_html($product_title); ?></option>
                                        <?php endif; ?>
                                    </select>
                                </p>
                                <p>
                                    <label><?php _e('Quantity:', 'studiou-wc-product-cat-manage'); ?></label>
                                    <input type="number" name="mandatory_product_quantity[]" value="<?php echo esc_attr($quantity); ?>" min="1" step="1" style="width: 80px;" />
                                </p>
                                <p>
                                    <label><?php _e('Type:', 'studiou-wc-product-cat-manage'); ?></label>
                                    <select name="mandatory_product_type[]">
                                        <option value="OnePerCart" <?php selected($type, 'OnePerCart'); ?>><?php _e('One Per Cart', 'studiou-wc-product-cat-manage'); ?></option>
                                        <option value="OnePerProduct" <?php selected($type, 'OnePerProduct'); ?>><?php _e('One Per Product', 'studiou-wc-product-cat-manage'); ?></option>
                                    </select>
                                </p>
                                <p>
                                    <button type="button" class="button remove-mandatory-product"><?php _e('Remove', 'studiou-wc-product-cat-manage'); ?></button>
                                </p>
                            </div>
                        <?php endforeach; ?>
                    <?php endif; ?>
                </div>
                <p>
                    <button type="button" class="button add-mandatory-product"><?php _e('Add Mandatory Product', 'studiou-wc-mandatory-products'); ?></button>
                </p>
                <p class="description">
                    <?php _e('These products will be automatically added to the cart when a product from this category is added.', 'studiou-wc-product-cat-manage'); ?>
                    <br>
                    <?php _e('Note: Child categories will inherit these settings.', 'studiou-wc-product-cat-manage'); ?>
                </p>
            </td>
        </tr>
        
        <script type="text/template" id="tmpl-mandatory-product-row">
            <div class="mandatory-product-row" style="margin-bottom: 10px; padding: 10px; border: 1px solid #ddd; background: #f9f9f9;">
                <p>
                    <label><?php _e('Product:', 'studiou-wc-mandatory-products'); ?></label>
                    <select 
                        class="wc-product-search" 
                        style="width: 50%;" 
                        name="mandatory_product_id[]" 
                        data-placeholder="<?php esc_attr_e('Search for a product&hellip;', 'studiou-wc-mandatory-products'); ?>" 
                        data-action="woocommerce_json_search_products_and_variations" 
                        data-allow_clear="true"
                    ></select>
                </p>
                <p>
                    <label><?php _e('Quantity:', 'studiou-wc-mandatory-products'); ?></label>
                    <input type="number" name="mandatory_product_quantity[]" value="1" min="1" step="1" style="width: 80px;" />
                </p>
                <p>
                    <label><?php _e('Type:', 'studiou-wc-mandatory-products'); ?></label>
                    <select name="mandatory_product_type[]">
                        <option value="OnePerCart"><?php _e('One Per Cart', 'studiou-wc-mandatory-products'); ?></option>
                        <option value="OnePerProduct"><?php _e('One Per Product', 'studiou-wc-mandatory-products'); ?></option>
                    </select>
                </p>
                <p>
                    <button type="button" class="button remove-mandatory-product"><?php _e('Remove', 'studiou-wc-mandatory-products'); ?></button>
                </p>
            </div>
        </script>
        
        <script>
            jQuery(function($) {
                // Initialize select2
                $(document).ready(function() {
                    $('.wc-product-search').selectWoo({
                        width: '100%'
                    });
                });
                
                // Add new row
                $('.add-mandatory-product').on('click', function() {
                    var template = wp.template('mandatory-product-row');
                    $('#studiou_mandatory_products_container').append(template());
                    
                    // Re-initialize select2 for the new row
                    $('#studiou_mandatory_products_container .wc-product-search:last').selectWoo({
                        width: '100%'
                    });
                });
                
                // Remove row
                $(document).on('click', '.remove-mandatory-product', function() {
                    $(this).closest('.mandatory-product-row').remove();
                });
            });
        </script>
        <?php
    }

    /**
     * Add fields to product category add form
     */
    public function add_category_fields_new() {
        ?>
        <div class="form-field">
            <label><?php _e('Mandatory Products', 'studiou-wc-mandatory-products'); ?></label>
            <div id="studiou_mandatory_products_container">
                <!-- Empty container for new category -->
            </div>
            <p>
                <button type="button" class="button add-mandatory-product"><?php _e('Add Mandatory Product', 'studiou-wc-mandatory-products'); ?></button>
            </p>
            <p class="description">
                <?php _e('These products will be automatically added to the cart when a product from this category is added.', 'studiou-wc-mandatory-products'); ?>
                <br>
                <?php _e('Note: Child categories will inherit these settings.', 'studiou-wc-mandatory-products'); ?>
            </p>
        </div>
        
        <script type="text/template" id="tmpl-mandatory-product-row">
            <div class="mandatory-product-row" style="margin-bottom: 10px; padding: 10px; border: 1px solid #ddd; background: #f9f9f9;">
                <p>
                    <label><?php _e('Product:', 'studiou-wc-mandatory-products'); ?></label>
                    <select 
                        class="wc-product-search" 
                        style="width: 50%;" 
                        name="mandatory_product_id[]" 
                        data-placeholder="<?php esc_attr_e('Search for a product&hellip;', 'studiou-wc-mandatory-products'); ?>" 
                        data-action="woocommerce_json_search_products_and_variations" 
                        data-allow_clear="true"
                    ></select>
                </p>
                <p>
                    <label><?php _e('Quantity:', 'studiou-wc-mandatory-products'); ?></label>
                    <input type="number" name="mandatory_product_quantity[]" value="1" min="1" step="1" style="width: 80px;" />
                </p>
                <p>
                    <label><?php _e('Type:', 'studiou-wc-mandatory-products'); ?></label>
                    <select name="mandatory_product_type[]">
                        <option value="OnePerCart"><?php _e('One Per Cart', 'studiou-wc-mandatory-products'); ?></option>
                        <option value="OnePerProduct"><?php _e('One Per Product', 'studiou-wc-mandatory-products'); ?></option>
                    </select>
                </p>
                <p>
                    <button type="button" class="button remove-mandatory-product"><?php _e('Remove', 'studiou-wc-mandatory-products'); ?></button>
                </p>
            </div>
        </script>
        
        <script>
            jQuery(function($) {
                // Add new row
                $('.add-mandatory-product').on('click', function() {
                    var template = wp.template('mandatory-product-row');
                    $('#studiou_mandatory_products_container').append(template());
                    
                    // Initialize select2 for the new row
                    $('#studiou_mandatory_products_container .wc-product-search:last').selectWoo({
                        width: '100%'
                    });
                });
                
                // Remove row
                $(document).on('click', '.remove-mandatory-product', function() {
                    $(this).closest('.mandatory-product-row').remove();
                });
            });
        </script>
        <?php
    }

    /**
     * Save category fields
     * 
     * @param int $term_id The term ID
     */
    public function save_category_fields($term_id) {
        $mandatory_products = array();
        
        if (isset($_POST['mandatory_product_id']) && is_array($_POST['mandatory_product_id'])) {
            $product_ids = array_map('absint', $_POST['mandatory_product_id']);
            $quantities = isset($_POST['mandatory_product_quantity']) ? array_map('absint', $_POST['mandatory_product_quantity']) : array();
            $types = isset($_POST['mandatory_product_type']) ? array_map('sanitize_text_field', $_POST['mandatory_product_type']) : array();
            
            foreach ($product_ids as $index => $product_id) {
                // Skip if product ID is empty
                if (empty($product_id)) {
                    continue;
                }
                
                $quantity = isset($quantities[$index]) ? max(1, $quantities[$index]) : 1;
                $type = isset($types[$index]) ? $types[$index] : 'OnePerCart';
                
                // Validate type
                if (!in_array($type, array('OnePerCart', 'OnePerProduct'))) {
                    $type = 'OnePerCart';
                }
                
                $mandatory_products[] = array(
                    'product_id' => $product_id,
                    'quantity' => $quantity,
                    'type' => $type
                );
            }
        }
        
        update_term_meta($term_id, 'mandatory_products', $mandatory_products);
    }

    /**
     * Enqueue admin scripts and styles
     * 
     * @param string $hook Current admin page
     */
    public function enqueue_admin_scripts($hook) {
        // Only on category edit page
        if ('edit-tags.php' !== $hook && 'term.php' !== $hook) {
            return;
        }
        
        // Check if we're on the product category screen
        $screen = get_current_screen();
        if (!$screen || 'product_cat' !== $screen->taxonomy) {
            return;
        }
        
        // WooCommerce admin scripts
        wp_enqueue_script('wc-enhanced-select');
        wp_enqueue_style('woocommerce_admin_styles');
    }

    /**
     * Add product meta boxes
     */
    public function add_product_meta_boxes() {
        add_meta_box(
            'studiou-wcmp-mandatory-products',
            __('Mandatory Products Info', 'studiou-wc-product-cat-manage'),
            array($this, 'render_product_meta_box'),
            'product',
            'side',
            'default'
        );
    }

    /**
     * Render product meta box
     * 
     * @param WP_Post $post The post object
     */
    public function render_product_meta_box($post) {
        $product_id = $post->ID;
        
        // Get plugin instance
        $plugin = new StudioU_WC_Mandatory_Products();
        
        // Get mandatory products
        $mandatory_products = $plugin->get_mandatory_products($product_id);
        
        if (empty($mandatory_products)) {
            echo '<p>' . __('No mandatory products set for this product\'s categories.', 'studiou-wc-mandatory-products') . '</p>';
            return;
        }
        
        echo '<p>' . __('This product has mandatory products set in its categories:', 'studiou-wc-mandatory-products') . '</p>';
        echo '<ul>';
        
        foreach ($mandatory_products as $mandatory_product) {
            $product_id = absint($mandatory_product['product_id']);
            $quantity = absint($mandatory_product['quantity']);
            $type = sanitize_text_field($mandatory_product['type']);
            
            $mandatory_product_obj = wc_get_product($product_id);
            
            if ($mandatory_product_obj) {
                echo '<li>';
                echo sprintf(
                    '%s x %d (%s)',
                    $mandatory_product_obj->get_name(),
                    $quantity,
                    $type === 'OnePerCart' ? __('One per cart', 'studiou-wc-mandatory-products') : __('One per product', 'studiou-wc-mandatory-products')
                );
                echo '</li>';
            }
        }
        
        echo '</ul>';
        echo '<p class="description">' . __('These products will be automatically added to the customer\'s cart when this product is added.', 'studiou-wc-mandatory-products') . '</p>';
    }
}