<?php
/**
 * Description of ProductServiceController
 *
 * @author Ali2Woo Team
 * 
 * @autoload: a2wl_admin_init
 * 
 * @ajax: true
 */

namespace AliNext_Lite;;

use Pages;
use WC_Meta_Box_Product_Data;
use WC_Product_Factory;

class ProductServiceController {

    public function __construct() {
        add_action("before_delete_post", array($this, 'delete_post_action'), 10, 1);
        add_action("woocommerce_save_product_variation", array($this, 'save_product_variation'), 10, 2);

        add_action('wp_ajax_woocommerce_save_attributes', [$this, 'woocommerce_save_attributes'], 0);
    }

    public function delete_post_action($post_id) {
        // first, delete all post images
        $post_type = get_post_type($post_id);
            
        if(!a2wl_check_defined('A2WL_DO_NOT_USE_TRANSACTION') && 
            !isset($GLOBALS['a2wl_delete_post_register_shutdown']) && 
            in_array($post_type, array('product','product_variation'))
        ){
            $GLOBALS['a2wl_delete_post_register_shutdown'] = 1;

            wp_defer_term_counting(true);
            wp_defer_comment_counting(true );
            $GLOBALS['wpdb']->query('SET autocommit = 0;');

            register_shutdown_function(function(){
                unset($GLOBALS['a2wl_delete_post_register_shutdown']);
                
                $GLOBALS['wpdb']->query('COMMIT;');
                wp_defer_term_counting(false);
                wp_defer_comment_counting(false);
            });
        }

        Utils::delete_post_images($post_id);

        //second, mark variation as skip
        if ($post_type == 'product_variation' && !isset($GLOBALS['a2wl_autodelete_variaton_lock'])) {
            $variation = new \WC_Product_Variation($post_id);
            $parent_id = $variation->get_parent_id();
            $a2wl_skip_meta = get_post_meta($parent_id, "_a2w_skip_meta", true);
            $a2wl_skip_meta = $a2wl_skip_meta ? $a2wl_skip_meta : array('skip_vars' => array(), 'skip_images' => array());

            $external_variation_id = get_post_meta($post_id, "external_variation_id", true);
            if (!in_array($external_variation_id, $a2wl_skip_meta['skip_vars'])) {
                $a2wl_skip_meta['skip_vars'][] = $external_variation_id;
            }
            update_post_meta($parent_id, "_a2w_skip_meta", $a2wl_skip_meta);

            $this->update_aliexpress_sku_props($parent_id, $post_id);                
        }
    }

    public function save_product_variation($variation_id, $i) {
        $variation = new \WC_Product_Variation($variation_id);
        $parent_id = $variation->get_parent_id();
        $a2wl_skip_meta = get_post_meta($parent_id, "_a2w_skip_meta", true);
        $a2wl_skip_meta = $a2wl_skip_meta ? $a2wl_skip_meta : array('skip_vars' => array(), 'skip_images' => array());

        $external_variation_id = get_post_meta($variation_id, "external_variation_id", true);
        if (in_array($variation->get_status(), array('publish', false))) {
            $a2wl_skip_meta['skip_vars'] = array_diff($a2wl_skip_meta['skip_vars'], array($external_variation_id));
        } else {
            if (!in_array($external_variation_id, $a2wl_skip_meta['skip_vars'])) {
                $a2wl_skip_meta['skip_vars'][] = $external_variation_id;
            }
        }
        update_post_meta($parent_id, "_a2w_skip_meta", $a2wl_skip_meta);

        $this->update_aliexpress_sku_props($parent_id);
    }

    private function update_aliexpress_sku_props($product_id, $skip_ids = array()){
        $skip_ids = empty($skip_ids)?array():(is_array($skip_ids)?$skip_ids:array($skip_ids));
        $product = new \WC_Product_Variable($product_id);
        if ($product) {
            $var_ids = $product->get_visible_children();
            foreach($var_ids as $var_id){
                if(!in_array($var_id, $skip_ids)){
                    $aliexpress_sku_props = get_post_meta($var_id, "_aliexpress_sku_props", true);
                    if($aliexpress_sku_props){
                        update_post_meta($product_id, '_aliexpress_sku_props', $aliexpress_sku_props);
                        break;
                    }
                }
            }
        }
    }
    public function woocommerce_save_attributes(): void
    {
        check_ajax_referer('save-attributes', 'security');

        if (!PageGuardHelper::canAccessPage(Pages::IMPORT_LIST)) {
            wp_die(-1);
        }

        $product_id = absint($_POST['post_id']);

        $original_variations_attributes = get_post_meta(
            $product_id, '_a2w_original_variations_attributes',
            true
        );

        if ($original_variations_attributes) {
            parse_str($_POST['data'], $data);
            $attributes = WC_Meta_Box_Product_Data::prepare_attributes($data);

            $product_type = !empty($_POST['product_type']) ? wc_clean($_POST['product_type']) : 'simple';
            $classname = WC_Product_Factory::get_product_classname($product_id, $product_type);
            $product = new $classname($product_id);
            $product_attributes = $product->get_attributes();

            // update old simple variation attributes names (if it changed)
            $need_update = false;
            foreach ($product_attributes as $pa) {
                $pa->get_position();
                if ($pa->get_variation() && !$pa->is_taxonomy()) {
                    foreach ($attributes as $a) {
                        if ($pa->get_position() === $a->get_position() && $pa->get_name() !== $a->get_name()) {
                            $new_name = sanitize_title($a->get_name());
                            $old_name = sanitize_title($pa->get_name());
                            if (isset($original_variations_attributes[$old_name])) {
                                $original_variations_attributes[$new_name] = $original_variations_attributes[$old_name];
                                $original_variations_attributes[$new_name]['current_name'] = $a->get_name();
                                unset($original_variations_attributes[$old_name]);
                            }

                            global $wpdb;
                            $sql =  "UPDATE $wpdb->postmeta pm, $wpdb->posts p SET pm.meta_key=%s " .
                                    "WHERE p.ID = pm.post_id AND p.post_parent=%d " .
                                    "AND pm.meta_key=%s";
                            $wpdb->query(
                                // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
                               $wpdb->prepare(
                                   // phpcs:ignore WordPress.DB.PreparedSQL.NotPrepared
                                   $sql,
                                   esc_sql("attribute_" . $new_name),
                                   $product->get_id(),
                                   esc_sql("attribute_" . $old_name)
                               )
                            );

                            $need_update = true;
                            break;
                        }
                    }
                }
            }

            if ($need_update) {
                update_post_meta($product_id, '_a2w_original_variations_attributes', $original_variations_attributes);
            }

            // build delete variation attributes array
            foreach ($attributes as $product_attr) {
                if ($product_attr->get_variation()) {
                    foreach ($original_variations_attributes as $key => $values) {
                        if (sanitize_title($product_attr->get_name()) == (($product_attr->is_taxonomy() ? 'pa_' : '') . $key)) {
                            unset($original_variations_attributes[$key]);
                            break;
                        }
                    }
                }
            }

            update_post_meta($product_id, '_a2w_deleted_variations_attributes', $original_variations_attributes);
        }
    }
}