<?php
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}
/**
 * Block Checkout Field Reordering - JavaScript Approach
 * Enqueues JavaScript that reorders fields after React renders them
 */

class CFEP_Block_Checkout_Reorder {
    
    private static $instance = null;
    
    public static function instance() {
        if (is_null(self::$instance)) {
            self::$instance = new self();
        }
        return self::$instance;
    }
    
    private function __construct() {
        add_action('wp_enqueue_scripts', array($this, 'enqueue_reorder_script'));
    }
    
    /**
     * Enqueue JavaScript for reordering fields
     */
    public function enqueue_reorder_script() {
        // Only on checkout page
        if (!is_checkout() || is_order_received_page()) {
            return;
        }
        
        // Use the CFEP plugin constant if available, otherwise build path
        if (defined('CFEP_PLUGIN_URL')) {
            $js_url = CFEP_PLUGIN_URL . 'assets/js/block-checkout-field-reorder.js';
        } else {
            // Build from this file's location
            $js_url = plugin_dir_url(dirname(__FILE__)) . 'assets/js/block-checkout-field-reorder.js';
        }
        
        // Enqueue the JavaScript file
        wp_enqueue_script(
            'cfep-block-checkout-reorder',
            $js_url,
            array(), // No dependencies
            '1.0.3', // Version bump
            true // Load in footer
        );
        
        // Pass field positions to JavaScript
        $field_positions = $this->get_field_positions();
        
        wp_localize_script(
            'cfep-block-checkout-reorder',
            'cfepBlockCheckoutData',
            array(
                'fieldPositions' => $field_positions,
            )
        );
        
    }
    
    /**
     * Get all field positions for JavaScript
     */
    private function get_field_positions() {
        $all_fields = CFEP_Block_Field_Manager::instance()->get_all_fields(null, true);
        
        $positions = array();
        
        foreach ($all_fields as $field) {
            if (!$field['enabled']) {
                continue;
            }
            
            $key = $field['field_key'];
            $position = (int)$field['position'];
            
            // Add all possible variations of the field key
            $positions[$key] = $position;
            
            // Without prefix
            $base_key = str_replace(array('shipping_', 'billing_', 'cfep/'), '', $key);
            $positions[$base_key] = $position;
            
            // With cfep- prefix (how it might appear in HTML)
            $positions['cfep-' . $base_key] = $position;
            
            // With cfep/ prefix
            $positions['cfep/' . $base_key] = $position;
        }
        
        return $positions;
    }
}