// Response Helpers
// Standardize API response format across all routes

const { HTTP_STATUS } = require('./constants');

/**
 * Success response with data
 */
function success(res, data, statusCode = HTTP_STATUS.OK) {
  return res.status(statusCode).json({
    success: true,
    ...data
  });
}

/**
 * Success response with message
 */
function successMessage(res, message, statusCode = HTTP_STATUS.OK) {
  return res.status(statusCode).json({
    success: true,
    message
  });
}

/**
 * Created response (201)
 */
function created(res, data) {
  return res.status(HTTP_STATUS.CREATED).json({
    success: true,
    ...data
  });
}

/**
 * No content response (204)
 */
function noContent(res) {
  return res.status(HTTP_STATUS.NO_CONTENT).send();
}

/**
 * Error response
 */
function error(res, message, statusCode = HTTP_STATUS.INTERNAL_ERROR) {
  return res.status(statusCode).json({
    success: false,
    error: message
  });
}

/**
 * Validation error response (400)
 */
function validationError(res, message) {
  return res.status(HTTP_STATUS.BAD_REQUEST).json({
    success: false,
    error: message
  });
}

/**
 * Unauthorized response (401)
 */
function unauthorized(res, message = 'Unauthorized') {
  return res.status(HTTP_STATUS.UNAUTHORIZED).json({
    success: false,
    error: message
  });
}

/**
 * Forbidden response (403)
 */
function forbidden(res, message = 'Forbidden') {
  return res.status(HTTP_STATUS.FORBIDDEN).json({
    success: false,
    error: message
  });
}

/**
 * Not found response (404)
 */
function notFound(res, message = 'Not found') {
  return res.status(HTTP_STATUS.NOT_FOUND).json({
    success: false,
    error: message
  });
}

/**
 * Conflict response (409)
 */
function conflict(res, message) {
  return res.status(HTTP_STATUS.CONFLICT).json({
    success: false,
    error: message
  });
}

module.exports = {
  success,
  successMessage,
  created,
  noContent,
  error,
  validationError,
  unauthorized,
  forbidden,
  notFound,
  conflict
};