<?php
/**
 * Admin Assets Class - WITH AUTO-DETECTION OF CHECKOUT TYPE
 * Detects Classic vs Block Checkout automatically
 */

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

class CFEP_Admin_Assets {
    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('admin_enqueue_scripts', array($this, 'enqueue_admin_assets'));
    }
    
    public function enqueue_admin_assets($hook) {
        // Check correct hook - it should match your admin page
        if ('toplevel_page_checkout-field-editor-pro' !== $hook && 'woocommerce_page_checkout-field-editor' !== $hook) {
            return;
        }
        
        // Enqueue admin CSS
        wp_enqueue_style(
            'cfep-admin', 
            CFEP_PLUGIN_URL . 'assets/css/admin.css', 
            array(), 
            CFEP_VERSION
        );
        
        // Enqueue React admin script
        wp_enqueue_script(
            'cfep-admin', 
            CFEP_PLUGIN_URL . 'admin/build/index.js', 
            array('wp-element', 'wp-components'), 
            CFEP_VERSION, 
            true
        );
        
        // HARDCODED SECTIONS
        $sections = array(
            'billing'  => __('Billing', 'akz-checkout-fields-manager-for-woocommerce'),
            'shipping' => __('Shipping', 'akz-checkout-fields-manager-for-woocommerce'),
            'order'    => __('Order Notes', 'akz-checkout-fields-manager-for-woocommerce'),
        );
        
        // Get field types
        $field_types = array();
        if (class_exists('CFEP_Field_Types')) {
            $field_types = CFEP_Field_Types::get_field_types();
        }
        
        // Localize script with data for React
        wp_localize_script('cfep-admin', 'cfepAdmin', array(
            'ajaxUrl' => admin_url('admin-ajax.php'),
            'nonce' => wp_create_nonce('cfep_admin'),
            'restUrl' => rest_url('cfep/v1/'),
            'restNonce' => wp_create_nonce('wp_rest'),
            'sections' => $sections,
            'fieldTypes' => $field_types,
            'pluginUrl' => CFEP_PLUGIN_URL,
            'debug' => array(
                'timestamp' => time(),
                'version' => CFEP_VERSION,
                'sectionsCount' => count($sections),
            ),
        ));
    }
}