// /utils/apiResponse.js

const successResponse = (res, statusCode = 200, message = 'Operation successful', data = null) => {
  const response = {
    success: true,
    message
  };
  if (data !== null) {
    response.data = data;
  }
  return res.status(statusCode).json(response);
};

const listResponse = (res, statusCode = 200, data = [], meta = {}) => {
  return res.status(statusCode).json({
    success: true,
    data,
    meta: {
      totalCount: meta.totalCount || 0,
      totalPages: meta.totalPages || 0,
      currentPage: meta.currentPage || 1,
      limit: meta.limit || 20
    }
  });
};

const errorResponse = (res, statusCode = 500, code = 'INTERNAL_SERVER_ERROR', message = 'An error occurred', details = {}) => {
  return res.status(statusCode).json({
    success: false,
    error: {
      code,
      message,
      details: details || {}
    }
  });
};

module.exports = {
  successResponse,
  listResponse,
  errorResponse
};