import { afterEach, describe, expect, it, vi } from 'vitest';
import { AuthSession, type AuthUser } from '@pipu/core';

import { createDesktop, desktopFetch, isDesktop } from './desktop';

afterEach(() => {
  vi.unstubAllGlobals();
});

describe('desktop bridge', () => {
  it('restores the last desktop user when the proxy cannot reach the server', async () => {
    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response('offline', { status: 502, headers: { 'x-pipu-transport-error': '1' } })));
    const user = { id: 'alice', username: 'alice' } as AuthUser;
    const clear = vi.fn();
    const session = new AuthSession({ clientType: 'desktop', fetch: desktopFetch, baseUrl: 'http://local', refreshStore: {
      get: async () => 'refresh', set: vi.fn(), clear, getUser: async () => user,
    } });
    expect(await session.restore()).toEqual({ status: 'signed_in', offline: true, user });
    expect(clear).not.toHaveBeenCalled();
  });
  it('reports a failed proxy hop as a network failure, preserving real HTTP errors', async () => {
    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response('offline', { status: 502, headers: { 'x-pipu-transport-error': '1' } })));
    await expect(desktopFetch('http://local/api')).rejects.toThrow('Server unavailable');
    vi.stubGlobal('fetch', vi.fn().mockResolvedValue(new Response('denied', { status: 401 })));
    expect((await desktopFetch('http://local/api')).status).toBe(401);
  });
  it('is inactive in the browser', () => {
    expect(isDesktop()).toBe(false);
  });

  it('bootstraps through the Tauri invoke surface', async () => {
    const invoke = vi.fn(async (cmd: string) => {
      if (cmd === 'bootstrap') return { proxyBase: 'http://127.0.0.1:9/abc', server: 'https://music.example' };
      if (cmd === 'set_server') return 'https://music.example/pipu';
      return null;
    });
    (window as Window & { __TAURI__?: unknown }).__TAURI__ = { core: { invoke }, event: { listen: vi.fn() } };
    const desktop = await createDesktop();
    expect(desktop?.proxyBase).toBe('http://127.0.0.1:9/abc');
    expect(desktop?.server).toBe('https://music.example');
    await desktop?.setServer('https://music.example/pipu');
    expect(invoke).toHaveBeenCalledWith('set_server', { url: 'https://music.example/pipu' });
    delete (window as Window & { __TAURI__?: unknown }).__TAURI__;
  });
});