/**
 * API 错误类型定义
 */

/**
 * API 错误基类
 */
export class ApiErrorBase extends Error {
  constructor(
    message: string,
    public readonly code?: string,
    public readonly statusCode?: number,
    public readonly details?: unknown,
  ) {
    super(message);
    this.name = 'ApiError';
    Object.setPrototypeOf(this, ApiErrorBase.prototype);
  }
}

/**
 * 网络错误
 */
export class NetworkError extends ApiErrorBase {
  constructor(message = '网络连接失败，请检查您的网络') {
    super(message);
    this.name = 'NetworkError';
    Object.setPrototypeOf(this, NetworkError.prototype);
  }
}

/**
 * 超时错误
 */
export class TimeoutError extends ApiErrorBase {
  constructor(message = '请求超时，请稍后重试') {
    super(message);
    this.name = 'TimeoutError';
    Object.setPrototypeOf(this, TimeoutError.prototype);
  }
}

/**
 * 未授权错误 (401)
 */
export class UnauthorizedError extends ApiErrorBase {
  constructor(message = '未授权，请先登录') {
    super(message, 'UNAUTHORIZED', 401);
    this.name = 'UnauthorizedError';
    Object.setPrototypeOf(this, UnauthorizedError.prototype);
  }
}

/**
 * 权限不足错误 (403)
 */
export class ForbiddenError extends ApiErrorBase {
  constructor(message = '权限不足', code = 'FORBIDDEN', details?: unknown) {
    super(message, code, 403, details);
    this.name = 'ForbiddenError';
    Object.setPrototypeOf(this, ForbiddenError.prototype);
  }
}

/**
 * 资源未找到错误 (404)
 */
export class NotFoundError extends ApiErrorBase {
  constructor(message = '请求的资源不存在') {
    super(message, 'NOT_FOUND', 404);
    this.name = 'NotFoundError';
    Object.setPrototypeOf(this, NotFoundError.prototype);
  }
}

/**
 * 服务器错误 (5xx)
 */
export class ServerError extends ApiErrorBase {
  constructor(message = '服务器内部错误，请稍后重试', statusCode = 500) {
    super(message, 'SERVER_ERROR', statusCode);
    this.name = 'ServerError';
    Object.setPrototypeOf(this, ServerError.prototype);
  }
}

/**
 * 验证错误 (400)
 */
export class ValidationError extends ApiErrorBase {
  constructor(message = '请求参数验证失败', details?: unknown) {
    super(message, 'VALIDATION_ERROR', 400, details);
    this.name = 'ValidationError';
    Object.setPrototypeOf(this, ValidationError.prototype);
  }
}

/**
 * 检查错误是否为请求取消错误
 * @param error - 错误对象
 * @returns 是否为取消错误
 */
export function isCancelError(error: unknown): boolean {
  return (
    error !== null &&
    typeof error === 'object' &&
    (('__CANCEL__' in error &&
      (error as { __CANCEL__?: boolean }).__CANCEL__ === true) ||
      ('message' in error &&
        (error as { message?: string }).message === '请求已被取消'))
  );
}