import type { RpaErrorCode } from "@/modules/rpa/errors";

type PageTextRule = {
  patterns: RegExp[];
  code: RpaErrorCode;
};

const PAGE_TEXT_RULES: PageTextRule[] = [
  {
    patterns: [
      /no carriers available/i,
      /no capacity/i,
      /unable to find a carrier/i,
      /无可用承运商/,
      /暂无运力/,
    ],
    code: "CARRIER_NO_CAPACITY",
  },
  {
    patterns: [
      /address not supported/i,
      /zip code is not supported/i,
      /we don't service this area/i,
      /不支持该邮编/,
      /地址不在服务范围/,
    ],
    code: "ADDRESS_NOT_SUPPORTED",
  },
];

export function hasMothershipCredentials(): boolean {
  return Boolean(
    process.env.MOTHERSHIP_EMAIL?.trim() &&
      process.env.MOTHERSHIP_PASSWORD?.trim(),
  );
}

/** Mothership 页面文案 → 业务 error_code（task-110 / task-128） */
export function mapPageTextToErrorCode(pageText: string): RpaErrorCode | null {
  const normalized = pageText.trim();
  if (!normalized) {
    return null;
  }

  for (const rule of PAGE_TEXT_RULES) {
    if (rule.patterns.some((pattern) => pattern.test(normalized))) {
      return rule.code;
    }
  }

  return null;
}

/**
 * URL → 错误分类（v0.6）
 * login 无凭据由 QuotePageAdapter.isLoginWithoutCredentials 处理为 STRUCT_CHANGE
 */
export function mapUrlToErrorCode(url: string): RpaErrorCode | null {
  const lower = url.toLowerCase();
  if (lower.includes("captcha") || lower.includes("challenge")) {
    return "RPA_CAPTCHA";
  }
  if (
    lower.includes("/login") ||
    lower.includes("/sign-in") ||
    lower.includes("/signin")
  ) {
    if (hasMothershipCredentials()) {
      return "SESSION_EXPIRED";
    }
    return null;
  }
  return null;
}

/** 入口类错误：不重试、不消耗 job 重试配额（task-128/129） */
export function isEntryErrorCode(code: RpaErrorCode): boolean {
  return (
    code === "QUOTE_ENTRY_UNAVAILABLE" ||
    code === "ADDRESS_SUGGESTION_NOT_FOUND"
  );
}