// ثبت endpoint تنظیمات در REST
add_action('rest_api_init', function() {
    register_rest_route( defined('AIQA_LITE_REST_NAMESPACE') ? AIQA_LITE_REST_NAMESPACE : 'aiqa/v1', '/settings', [
        'methods' => ['GET','POST'],
        'permission_callback' => function() {
            return current_user_can('manage_options');
        },
        'callback' => function( $request ) {
            if ( $request->get_method() === 'GET' ) {
                $settings = aiqa_lite_get_settings();
                aiqa_log('AIQA_SETTINGS', 'Settings fetched via REST', ['user'=>get_current_user_id()]);
                return [ 'success'=>true, 'data'=>$settings ];
            } else {
                $params = $request->get_json_params();
                $errors = aiqa_lite_validate_settings($params);
                if ( !empty($errors) ) {
                    aiqa_log('AIQA_SETTINGS', 'Settings validation failed', ['errors'=>$errors]);
                    return new WP_REST_Response([ 'success'=>false, 'errors'=>$errors ], 400);
                }
                $settings = aiqa_lite_update_settings($params);
                aiqa_log('AIQA_SETTINGS', 'Settings updated via REST', ['user'=>get_current_user_id()]);
                return [ 'success'=>true, 'data'=>$settings ];
            }
        },
    ]);
});
    // WooCommerce: order-status
    register_rest_route( defined('AIQA_LITE_REST_NAMESPACE') ? AIQA_LITE_REST_NAMESPACE : 'aiqa/v1', '/woo/order-status', [
        'methods' => ['GET'],
        'permission_callback' => function() {
            return current_user_can('manage_woocommerce') || current_user_can('manage_aiqa');
        },
        'callback' => function( $request ) {
            $order_id = $request->get_param('order_id');
            // Placeholder: وضعیت واقعی سفارش در فاز بعدی تکمیل می‌شود
            $data = [ 'order_id'=>$order_id, 'status'=>'(آزمایشی)' ];
            aiqa_log('AIQA_WOO', 'Order status fetched', ['user'=>get_current_user_id(),'order_id'=>$order_id]);
            return [ 'success'=>true, 'data'=>$data ];
        },
    ]);

    // WooCommerce: product-info
    register_rest_route( defined('AIQA_LITE_REST_NAMESPACE') ? AIQA_LITE_REST_NAMESPACE : 'aiqa/v1', '/woo/product-info', [
        'methods' => ['GET'],
        'permission_callback' => function() {
            return current_user_can('manage_woocommerce') || current_user_can('manage_aiqa');
        },
        'callback' => function( $request ) {
            $product_id = $request->get_param('product_id');
            // Placeholder: اطلاعات واقعی محصول در فاز بعدی تکمیل می‌شود
            $data = [ 'product_id'=>$product_id, 'info'=>'(آزمایشی)' ];
            aiqa_log('AIQA_WOO', 'Product info fetched', ['user'=>get_current_user_id(),'product_id'=>$product_id]);
            return [ 'success'=>true, 'data'=>$data ];
        },
    ]);
    // Usage endpoint
    register_rest_route( defined('AIQA_LITE_REST_NAMESPACE') ? AIQA_LITE_REST_NAMESPACE : 'aiqa/v1', '/usage', [
        'methods' => ['GET'],
        'permission_callback' => function() {
            return current_user_can('view_aiqa_reports');
        },
        'callback' => function( $request ) {
            // Placeholder: گزارش مصرف واقعی در فاز بعدی تکمیل می‌شود
            $data = [ 'total_requests'=>0, 'total_tokens'=>0, 'period'=>'(آزمایشی)' ];
            aiqa_log('AIQA_USAGE', 'Usage report fetched', ['user'=>get_current_user_id()]);
            return [ 'success'=>true, 'data'=>$data ];
        },
    ]);

    // Export endpoint
    register_rest_route( defined('AIQA_LITE_REST_NAMESPACE') ? AIQA_LITE_REST_NAMESPACE : 'aiqa/v1', '/export', [
        'methods' => ['GET'],
        'permission_callback' => function() {
            return current_user_can('view_aiqa_reports');
        },
        'callback' => function( $request ) {
            $format = $request->get_param('format') ?: 'csv';
            // Placeholder: خروجی واقعی در فاز بعدی تکمیل می‌شود
            $data = [ 'export'=>'(خروجی آزمایشی: پیاده‌سازی کامل در فاز بعدی)' ];
            aiqa_log('AIQA_EXPORT', 'Export requested', ['user'=>get_current_user_id(),'format'=>$format]);
            return [ 'success'=>true, 'data'=>$data ];
        },
    ]);
    // Chat endpoint
    register_rest_route( defined('AIQA_LITE_REST_NAMESPACE') ? AIQA_LITE_REST_NAMESPACE : 'aiqa/v1', '/chat', [
        'methods' => ['POST'],
        'permission_callback' => function() {
            return current_user_can('manage_aiqa');
        },
        'callback' => function( $request ) {
            $params = $request->get_json_params();
            $message = trim($params['message'] ?? '');
            if ( !$message ) {
                aiqa_log('AIQA_CHAT', 'Empty chat message', ['user'=>get_current_user_id()]);
                return new WP_REST_Response([ 'success'=>false, 'error'=>'empty_message' ], 400);
            }
            // REST-only: will be proxied server-side in next phases
            aiqa_log('AIQA_CHAT', 'Chat message received (no provider call)', ['user'=>get_current_user_id(),'msg'=>$message]);
            return [ 'success'=>true, 'data'=>[ 'reply'=>'(پاسخ آزمایشی: پیاده‌سازی مدل در فاز بعدی انجام می‌شود)' ] ];
        },
    ]);

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