<?php
/**
 * @package   Essential_Grid
 * @author    ThemePunch <info@themepunch.com>
 * @link      https://www.essential-grid.com/
 * @copyright 2025 ThemePunch
 */

if( !defined( 'ABSPATH') ) exit();

class Essential_Grid_WordPress_Fix {
	
	public function __construct(){
		//Since WP 4.2, terms may split and receive new IDs if you update them, if they have the same handle on two or more Custom Post Types or tag/categorie
		add_action( 'split_shared_term', ['Essential_Grid_WordPress_Fix', 'split_terms_fix'], 10, 4 );
	}
	
	/**
	 * Search all Grids and change the term IDs set in the selected terms if needed
	 * @since: 2.1.0
	 **/
	static function split_terms_fix( $old_term_id, $new_term_id, $term_taxonomy_id, $taxonomy ){
		$r = apply_filters('essgrid_split_terms_fix', ['old_term_id' => $old_term_id, 'new_term_id' => $new_term_id, 'term_taxonomy_id' => $term_taxonomy_id, 'taxonomy' => $taxonomy]);
		
		$base = new Essential_Grid_Base();
		
		$grids = Essential_Grid_Db::get_entity('grids')->get_grids();
		foreach($grids as $grid){
			
			$selected = json_decode($grid->postparams, true);
			$post_category = $base->getVar($selected, 'post_category');
			
			$cat_tax = $base->getCatAndTaxData($post_category);
			
			$cats = [];
			if(!empty($cat_tax['cats']))
				$cats = explode(',', $cat_tax['cats']);
				
			$taxes = ['post_tag'];
			if(!empty($cat_tax['tax']))
				$taxes = explode(',', $cat_tax['tax']);
			
			$cont = false;
			if(!empty($cats)){
				foreach($cats as $cat){

					//ID needs to be changed
					if($r['old_term_id'] == $cat && in_array($r['taxonomy'], $taxes)){
					
						foreach($taxes as $t){
							//replace all occuring old term id with the new term id and then Save the Grid
							$post_category = str_replace($t.'_'.$r['old_term_id'], $t.'_'.$r['new_term_id'], $post_category);
						}
						
						$selected['post_category'] = $post_category;
						$grid->postparams = $selected;
						$grid->params = json_decode($grid->params, true);
						$grid->layers = json_decode($grid->layers, true);

						//cast to array as update_create_grid expects an array
						$new_grid = (array) $grid;
						
						Essential_Grid_Admin::update_create_grid($new_grid);
						
						//now delete cache of the Grid so that changes take effect immediately
						Essential_Grid_Base::clear_transients('ess_grid_trans_full_grid_' . $grid->id);
						
						$cont = true;
					}
					if($cont) break;
				}
			}
		}
	}
	
}

$esg_wp_fix = new Essential_Grid_WordPress_Fix();
