/**
 * Standardized Response Utilities
 * Provides consistent response formatting for API endpoints
 */

/**
 * Creates a standardized success response
 * @param {*} data - The response data to include
 * @param {string} message - Optional message about the operation
 * @param {number} code - Optional response code (default: 200)
 * @returns {Object} - Standardized success response
 */
function successResponse(data, message = 'Operation successful', code = 200) {
  return {
    success: true,
    data: data,
    message: message,
    code: code
  };
}

/**
 * Creates a standardized error response
 * @param {string} message - Error message
 * @param {number} code - Optional error code (default: 400)
 * @param {*} details - Optional error details
 * @returns {Object} - Standardized error response
 */
function errorResponse(message, code = 400, details = null) {
  return {
    success: false,
    data: null,
    message: message,
    code: code,
    details: details
  };
}

/**
 * Helper function for parameter validation errors
 * @param {string} message - Error message
 * @param {number} code - Error code (default: 3001)
 * @returns {Object} - Standardized parameter validation error response
 */
function validationErrorResponse(message, code = 3001) {
  return errorResponse(message, code);
}

/**
 * Helper function for internal server errors
 * @param {string} message - Error message (default: "Internal server error")
 * @param {number} code - Error code (default: 5000)
 * @returns {Object} - Standardized internal server error response
 */
function serverErrorResponse(message = 'Internal server error', code = 5000) {
  return errorResponse(message, code);
}

export {
  successResponse,
  errorResponse,
  validationErrorResponse,
  serverErrorResponse
};