import { debounce } from "lodash";

/**
 * HTTP错误码对应的用户友好提示信息
 */
const HTTP_ERROR_MESSAGES: Record<number, string> = {
  0: "Please try again if the network is abnormal. If it happens again, please contact us.",
  400: "Request parameter error, please check your input.",
  401: "Login expired, please log in again.",
  403: "Insufficient permissions to access this resource.",
  404: "Requested resource does not exist.",
  408: "Request timeout, please try again.",
  429: "Too many requests, please try again later.",
  502: "Gateway error, please try again later.",
  503: "Service temporarily unavailable, please try again later.",
  504: "Gateway timeout, please try again later.",
  4001: "Insufficient points, please recharge.",
};

/**
 * 默认错误提示信息
 */
const DEFAULT_ERROR_MESSAGE = "Network error, please try again. If the problem persists, please contact us.";

/**
 * 特殊错误码的处理函数
 */
const ERROR_HANDLERS: Record<number, () => void> = {
  401: () => {
    // 清除本地存储的 token
    localStorage.removeItem('token');
    // 跳转到登录页面
    window.location.href = '/login';
  },
  4001: () => {
    // 显示积分不足通知
    import('../utils/notifications').then(({ showInsufficientPointsNotification }) => {
      showInsufficientPointsNotification();
    });
  }
};

/**
 * 根据错误码显示对应的提示信息并执行相应处理
 * @param code - HTTP错误码
 * @param customMessage - 自定义错误信息（可选）
 */
export const errorHandle = debounce(
  (code: number, customMessage?: string): void => {
    const errorMessage =
      customMessage || HTTP_ERROR_MESSAGES[code] || DEFAULT_ERROR_MESSAGE;

    // 显示错误提示
    window.msg.error(errorMessage);

    // 执行特殊错误码的处理函数
    const handler = ERROR_HANDLERS[code];
    if (handler) {
      handler();
    }
  },
  100
);