/**
 * UpdateService 测试（v0.6.4 P4-2）
 * 锁定：语义化版本比较表、feed 拉取/解析/状态映射、禁用态。
 */

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

vi.mock('electron-log', () => ({
  default: { info: vi.fn(), warn: vi.fn(), error: vi.fn(), debug: vi.fn() },
}));

import { UpdateService, isNewerVersion } from '../update.service';

describe('isNewerVersion 语义化比较', () => {
  it.each([
    ['0.7.0', '0.6.4', true],
    ['1.0.0', '0.9.9', true],
    ['0.6.10', '0.6.9', true],
    ['0.6.4', '0.6.4', false],
    ['0.6.3', '0.6.4', false],
    ['v0.7.0', '0.6.4', true], // 容忍 v 前缀
    ['not-a-version', '0.6.4', false], // 非法输入宁可不提示
    ['', '0.6.4', false],
    // 预发布：同号正式版 > 预发布；候选预发布不提示升级
    ['0.6.5-beta', '0.6.4', true],
    ['0.6.4-beta', '0.6.4', false],
    ['0.6.4', '0.6.4-beta', true],
  ])('%s vs %s → %s', (candidate, current, expected) => {
    expect(isNewerVersion(candidate, current)).toBe(expected);
  });
});

describe('UpdateService.check 状态映射', () => {
  afterEach(() => {
    vi.unstubAllGlobals();
    vi.restoreAllMocks();
  });

  it('未配置 feed → disabled（不发起任何请求）', async () => {
    const fetchSpy = vi.fn();
    vi.stubGlobal('fetch', fetchSpy);
    const svc = new UpdateService(() => '0.6.4', () => null);
    const result = await svc.check();
    expect(result.status).toBe('disabled');
    expect(fetchSpy).not.toHaveBeenCalled();
  });

  it('feed 声明更新版本 → available 并透传下载直链与 notes', async () => {
    vi.stubGlobal(
      'fetch',
      vi.fn().mockResolvedValue(
        new Response(JSON.stringify({ version: '0.7.0', url: 'https://dl.example/setup.exe', notes: '- fix x' }), { status: 200 }),
      ),
    );
    const svc = new UpdateService(() => '0.6.4', () => 'https://update.example/feed.json');
    const result = await svc.check();
    expect(result.status).toBe('available');
    if (result.status === 'available') {
      expect(result.latestVersion).toBe('0.7.0');
      expect(result.downloadUrl).toBe('https://dl.example/setup.exe');
      expect(result.notes).toBe('- fix x');
    }
  });

  it('同版本 / 更旧 → up-to-date', async () => {
    vi.stubGlobal(
      'fetch',
      vi.fn().mockResolvedValue(new Response(JSON.stringify({ version: '0.6.3' }), { status: 200 })),
    );
    const svc = new UpdateService(() => '0.6.4', () => 'https://u.example/f.json');
    const result = await svc.check();
    expect(result.status).toBe('up-to-date');
    if (result.status === 'up-to-date') expect(result.latestVersion).toBe('0.6.3');
  });

  it('HTTP 失败与非法 JSON → error', async () => {
    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response('oops', { status: 500 })));
    const svc = new UpdateService(() => '0.6.4', () => 'https://u.example/f.json');
    expect((await svc.check()).status).toBe('error');

    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response('<html/>', { status: 200 })));
    expect((await svc.check()).status).toBe('error');
  });

  it('下载 URL 非 http(s) 时被剔除（防协议劫持）', async () => {
    vi.stubGlobal(
      'fetch',
      vi.fn().mockResolvedValue(
        new Response(JSON.stringify({ version: '9.9.9', url: 'file:///C:/evil.exe' }), { status: 200 }),
      ),
    );
    const svc = new UpdateService(() => '0.6.4', () => 'https://u.example/f.json');
    const result = await svc.check();
    expect(result.status).toBe('available');
    if (result.status === 'available') expect(result.downloadUrl).toBeUndefined();
  });
});