function responseMiddleware(fn) {
    return async (event, context) => {
        try {
            const result = await fn(event, context);
            console.log('responseMiddleware result:', result);
            if (result && result.code === undefined) {
                return sendResponse(result);
            } else {
                return sendResponse(
                    result.data,
                    result.code || 0,
                    result.message || '',
                );
            }
        } catch (err) {
            return sendResponse({}, 1, err.message || '请求失败');
        }
    };
}

function sendResponse(data = null, code = 0, message = '请求成功') {
    return {
        code,
        message,
        data,
    };
}

module.exports = responseMiddleware;