import * as Linking from 'expo-linking';
import { afterEach, describe, expect, test, vi } from 'vitest';

import {
  HOST_BRIDGE_PROTOCOL,
  HOST_BRIDGE_VERSION,
  type HostBridgeMethod,
  type HostBridgeRequest,
  type HostBridgeResponse,
} from '../../../packages/shared/src/contracts/hostBridge';
import {
  configureMobileHostBridgeNavigation,
  handleMobileHostBridgeMessage,
} from './mobileHostBridge';

vi.mock('expo-clipboard', () => ({
  setStringAsync: vi.fn(),
}));

vi.mock('expo-haptics', () => ({
  ImpactFeedbackStyle: {
    Heavy: 'heavy',
    Light: 'light',
    Medium: 'medium',
  },
  impactAsync: vi.fn(),
}));

vi.mock('expo-linking', () => ({
  openURL: vi.fn(),
}));

vi.mock('react-native', () => ({
  Platform: {
    OS: 'ios',
  },
  Share: {
    share: vi.fn(),
  },
}));

function request(
  method: HostBridgeMethod,
  payload?: unknown,
): HostBridgeRequest {
  return {
    bridge: HOST_BRIDGE_PROTOCOL,
    version: HOST_BRIDGE_VERSION,
    id: 'request-1',
    method,
    payload,
  };
}

async function send(requestValue: HostBridgeRequest) {
  const responses: HostBridgeResponse[] = [];

  await handleMobileHostBridgeMessage(JSON.stringify(requestValue), (response) =>
    responses.push(response),
  );

  const response = responses[0];
  if (!response) {
    throw new Error('host bridge response missing');
  }

  return response;
}

function expectOk(response: HostBridgeResponse) {
  if (!response.ok) {
    throw new Error('expected ok host bridge response');
  }

  return response;
}

function expectFailed(response: HostBridgeResponse) {
  if (response.ok) {
    throw new Error('expected failed host bridge response');
  }

  return response;
}

afterEach(() => {
  vi.mocked(Linking.openURL).mockReset();
  configureMobileHostBridgeNavigation(null);
});

describe('handleMobileHostBridgeMessage', () => {
  test('runtime 能力清单声明移动壳支持受控 WebView 导航', async () => {
    const response = await send(request('host.getRuntime'));

    const okResponse = expectOk(response);

    expect(okResponse.result).toMatchObject({
      shell: 'expo_mobile',
      platform: 'ios',
    });
    expect(
      (okResponse.result as { capabilities: string[] }).capabilities,
    ).toContain('navigation.openNativePage');
    expect(
      (okResponse.result as { capabilities: string[] }).capabilities,
    ).toEqual(
      expect.arrayContaining(['host.events', 'navigation.canGoBack']),
    );
  });

  test('navigation.openNativePage 把同源路径切到移动壳 WebView', async () => {
    const openWebViewUrl = vi.fn();
    configureMobileHostBridgeNavigation({
      allowedOrigin: 'https://app.genarrative.world',
      openWebViewUrl,
    });

    const response = await send(
      request('navigation.openNativePage', {
        url: '/works/detail?work=PZ-1',
      }),
    );

    expectOk(response);
    expect(openWebViewUrl).toHaveBeenCalledWith(
      'https://app.genarrative.world/works/detail?work=PZ-1',
    );
  });

  test('navigation.openNativePage 拒绝外域目标', async () => {
    configureMobileHostBridgeNavigation({
      allowedOrigin: 'https://app.genarrative.world',
      openWebViewUrl: vi.fn(),
    });

    const response = await send(
      request('navigation.openNativePage', {
        url: 'https://example.com/works/detail?work=PZ-1',
      }),
    );

    const failedResponse = expectFailed(response);

    expect(failedResponse.error.code).toBe('invalid_request');
  });

  test('未配置 WebView 导航器时明确返回 unsupported', async () => {
    const response = await send(
      request('navigation.openNativePage', {
        url: '/works/detail?work=PZ-1',
      }),
    );

    const failedResponse = expectFailed(response);

    expect(failedResponse.error.code).toBe('unsupported_method');
  });

  test('app.openExternalUrl 只打开允许的外链协议', async () => {
    const response = await send(
      request('app.openExternalUrl', {
        url: ' https://example.com/path ',
      }),
    );

    expectOk(response);
    expect(Linking.openURL).toHaveBeenCalledWith('https://example.com/path');
  });

  test('app.openExternalUrl 拒绝危险协议', async () => {
    const response = await send(
      request('app.openExternalUrl', {
        url: 'javascript:alert(1)',
      }),
    );

    const failedResponse = expectFailed(response);

    expect(failedResponse.error.code).toBe('invalid_request');
    expect(Linking.openURL).not.toHaveBeenCalled();
  });

  test('移动壳未接入真实导出能力时明确返回 unsupported', async () => {
    const response = await send(
      request('file.exportText', {
        fileName: '作品记录.txt',
        content: 'content',
      }),
    );

    const failedResponse = expectFailed(response);

    expect(failedResponse.error.code).toBe('unsupported_method');
  });
});