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

const electronMocks = vi.hoisted(() => ({
  getVersion: vi.fn(() => '0.9.1'),
  ipcHandle: vi.fn(),
}));

const updaterMocks = vi.hoisted(() => {
  const listeners = new Map<string, Array<(...args: unknown[]) => void>>();
  const autoUpdater = {
    autoDownload: false,
    autoInstallOnAppQuit: true,
    logger: null as unknown,
    channel: 'latest',
    on: vi.fn((event: string, listener: (...args: unknown[]) => void) => {
      const current = listeners.get(event) ?? [];
      current.push(listener);
      listeners.set(event, current);
      return autoUpdater;
    }),
    setFeedURL: vi.fn(),
    checkForUpdates: vi.fn(),
    downloadUpdate: vi.fn(),
    quitAndInstall: vi.fn(),
  };
  return { autoUpdater, listeners };
});

vi.mock('electron', () => ({
  app: {
    getVersion: electronMocks.getVersion,
    isPackaged: true,
  },
  BrowserWindow: vi.fn(),
  ipcMain: { handle: electronMocks.ipcHandle },
}));

vi.mock('electron-updater', () => ({ autoUpdater: updaterMocks.autoUpdater }));

vi.mock('@electron/utils/logger', () => ({
  logger: {
    info: vi.fn(),
    warn: vi.fn(),
    error: vi.fn(),
    debug: vi.fn(),
  },
}));

import { AppUpdater, resolveUpdateFeed } from '@electron/main/updater';

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

describe('resolveUpdateFeed', () => {
  it('routes stable Windows x64 updates through Works Square', () => {
    expect(resolveUpdateFeed('0.9.2', 'win32', 'x64')).toEqual({
      channel: 'latest',
      url: 'https://square.nianxx.cn/api/app-updates/windows/x64',
    });
  });

  it.each(['x64', 'arm64'])('routes stable macOS %s updates through Works Square', (architecture) => {
    expect(resolveUpdateFeed('0.9.2', 'darwin', architecture)).toEqual({
      channel: 'latest',
      url: `https://square.nianxx.cn/api/app-updates/mac/${architecture}`,
    });
  });

  it('keeps prerelease updates on the existing OSS channel feed', () => {
    expect(resolveUpdateFeed('0.9.3-beta.1', 'darwin', 'arm64')).toEqual({
      channel: 'beta',
      url: 'https://oss.intelli-spectrum.com/beta',
    });
  });

  it.each([
    ['linux', 'x64'],
    ['win32', 'arm64'],
    ['darwin', 'ia32'],
  ])('reports unsupported stable target %s/%s without throwing', (platform, architecture) => {
    expect(resolveUpdateFeed('0.9.2', platform, architecture)).toMatchObject({
      channel: 'latest',
      error: expect.stringContaining('Unsupported update platform'),
    });
  });
});

describe('AppUpdater feed delegation', () => {
  beforeEach(() => {
    vi.clearAllMocks();
    electronMocks.getVersion.mockReturnValue('0.9.1');
    updaterMocks.autoUpdater.channel = 'latest';
    updaterMocks.autoUpdater.checkForUpdates.mockResolvedValue(null);
  });

  it('delegates stable checks directly to electron-updater without a manifest preflight', async () => {
    const platformDescriptor = Object.getOwnPropertyDescriptor(process, 'platform');
    const architectureDescriptor = Object.getOwnPropertyDescriptor(process, 'arch');
    Object.defineProperty(process, 'platform', { configurable: true, value: 'win32' });
    Object.defineProperty(process, 'arch', { configurable: true, value: 'x64' });
    const fetchSpy = vi.spyOn(globalThis, 'fetch');
    updaterMocks.autoUpdater.checkForUpdates.mockResolvedValue({
      isUpdateAvailable: true,
      updateInfo: { version: '0.9.2' },
    });
    try {
      const updater = new AppUpdater();

      await expect(updater.checkForUpdates()).resolves.toMatchObject({ version: '0.9.2' });

      expect(updaterMocks.autoUpdater.setFeedURL).toHaveBeenCalledWith({
        provider: 'generic',
        url: 'https://square.nianxx.cn/api/app-updates/windows/x64',
        useMultipleRangeRequest: false,
      });
      expect(updaterMocks.autoUpdater.setFeedURL).toHaveBeenCalledTimes(1);
      expect(updaterMocks.autoUpdater.checkForUpdates).toHaveBeenCalledTimes(1);
      expect(fetchSpy).not.toHaveBeenCalled();
      expect(updater.getStatus()).toMatchObject({
        status: 'available',
        info: { version: '0.9.2' },
      });
    } finally {
      if (platformDescriptor) Object.defineProperty(process, 'platform', platformDescriptor);
      if (architectureDescriptor) Object.defineProperty(process, 'arch', architectureDescriptor);
    }
  });

  it('keeps prerelease channels on their existing electron-updater feed', async () => {
    electronMocks.getVersion.mockReturnValue('0.9.2-beta.1');
    updaterMocks.autoUpdater.checkForUpdates.mockResolvedValue({
      isUpdateAvailable: false,
      updateInfo: { version: '0.9.2-beta.1' },
    });
    const updater = new AppUpdater();

    await updater.checkForUpdates();

    expect(updaterMocks.autoUpdater.setFeedURL).toHaveBeenCalledWith({
      provider: 'generic',
      url: 'https://oss.intelli-spectrum.com/beta',
      useMultipleRangeRequest: false,
    });
    expect(updaterMocks.autoUpdater.checkForUpdates).toHaveBeenCalledTimes(1);
    expect(updater.getStatus()).toMatchObject({ status: 'not-available' });
  });

  it('defers unsupported stable target errors until an update check', async () => {
    const platformDescriptor = Object.getOwnPropertyDescriptor(process, 'platform');
    const architectureDescriptor = Object.getOwnPropertyDescriptor(process, 'arch');
    Object.defineProperty(process, 'platform', { configurable: true, value: 'linux' });
    Object.defineProperty(process, 'arch', { configurable: true, value: 'x64' });

    try {
      const updater = new AppUpdater();
      const errorListener = vi.fn();
      const rendererSend = vi.fn();
      updater.on('error', errorListener);
      updater.setMainWindow({
        isDestroyed: () => false,
        webContents: { send: rendererSend },
      } as unknown as Parameters<AppUpdater['setMainWindow']>[0]);

      expect(updater.getStatus()).toEqual({ status: 'idle' });
      expect(updaterMocks.autoUpdater.setFeedURL).not.toHaveBeenCalled();

      await expect(updater.checkForUpdates()).rejects.toThrow('Unsupported update platform: linux/x64');

      expect(updater.getStatus()).toEqual({
        status: 'error',
        error: 'Unsupported update platform: linux/x64',
        info: undefined,
        progress: undefined,
      });
      expect(errorListener).toHaveBeenCalledWith(expect.objectContaining({
        message: 'Unsupported update platform: linux/x64',
      }));
      expect(rendererSend.mock.calls.filter(([channel, status]) => (
        channel === 'update:status-changed' && status?.status === 'error'
      ))).toHaveLength(1);
      expect(updaterMocks.autoUpdater.checkForUpdates).not.toHaveBeenCalled();
    } finally {
      if (platformDescriptor) Object.defineProperty(process, 'platform', platformDescriptor);
      if (architectureDescriptor) Object.defineProperty(process, 'arch', architectureDescriptor);
    }
  });
});