import { describe, expect, it } from 'vitest';

import {
  ERROR_HTTP_STATUS,
  ERROR_MESSAGES,
  ErrorCode,
  httpStatusOf,
  isErrorCode,
} from './codes.js';

describe('ErrorCode', () => {
  it('错误码段与工程规范 04 一致', () => {
    expect(ErrorCode.PARAM_INVALID).toBe(40001);
    expect(ErrorCode.UNAUTHENTICATED).toBe(40101);
    expect(ErrorCode.TOKEN_EXPIRED).toBe(40102);
    expect(ErrorCode.PERMISSION_DENIED).toBe(40301);
    expect(ErrorCode.OUT_OF_SCOPE).toBe(40302);
    expect(ErrorCode.NOT_FOUND).toBe(40401);
    expect(ErrorCode.VERSION_CONFLICT).toBe(40901);
    expect(ErrorCode.STATE_NOT_ALLOWED).toBe(40903);
    expect(ErrorCode.COMPLIANCE_BLOCKED).toBe(42202);
    expect(ErrorCode.COST_OVER_BUDGET).toBe(42203);
    expect(ErrorCode.RATE_LIMITED).toBe(42901);
    expect(ErrorCode.INTERNAL_ERROR).toBe(50001);
    expect(ErrorCode.DEPENDENCY_UNAVAILABLE).toBe(50002);
    expect(ErrorCode.TIMEOUT).toBe(50003);
  });

  it('每个错误码都有 HTTP 状态与默认提示', () => {
    for (const code of Object.values(ErrorCode)) {
      expect(ERROR_HTTP_STATUS[code]).toBeGreaterThanOrEqual(400);
      expect(ERROR_HTTP_STATUS[code]).toBeLessThan(600);
      expect(ERROR_MESSAGES[code].length).toBeGreaterThan(0);
    }
  });

  it('依赖不可用映射 503、超时映射 504', () => {
    expect(ERROR_HTTP_STATUS[ErrorCode.DEPENDENCY_UNAVAILABLE]).toBe(503);
    expect(ERROR_HTTP_STATUS[ErrorCode.TIMEOUT]).toBe(504);
  });

  it('isErrorCode 只认可登记的错误码', () => {
    expect(isErrorCode(40001)).toBe(true);
    expect(isErrorCode(40099)).toBe(false);
    expect(isErrorCode(200)).toBe(false);
  });

  it('httpStatusOf 从百位推导，非法码回退 500', () => {
    expect(httpStatusOf(42203)).toBe(422);
    expect(httpStatusOf(40101)).toBe(401);
    expect(httpStatusOf(123)).toBe(500);
    expect(httpStatusOf(70001)).toBe(500);
  });
});