/**
 * Custom Error Classes
 * For structured error handling with proper status codes
 */

class AppError extends Error {
  constructor(message, statusCode = 500, code = 'INTERNAL_ERROR') {
    super(message);
    this.statusCode = statusCode;
    this.code = code;
    this.name = this.constructor.name;
    Error.captureStackTrace(this, this.constructor);
  }
}

class ValidationError extends AppError {
  constructor(message) {
    super(message, 400, 'VALIDATION_ERROR');
  }
}

class NotFoundError extends AppError {
  constructor(resource) {
    super(`${resource} not found`, 404, 'NOT_FOUND');
  }
}

class UnauthorizedError extends AppError {
  constructor(message = 'Unauthorized') {
    super(message, 401, 'UNAUTHORIZED');
  }
}

class ForbiddenError extends AppError {
  constructor(message = 'Forbidden') {
    super(message, 403, 'FORBIDDEN');
  }
}

module.exports = {
  AppError,
  ValidationError,
  NotFoundError,
  UnauthorizedError,
  ForbiddenError,
};