/** @vitest-environment jsdom */

/**
 * 运行入口「预览已经在跑就切视图」的回归用例。
 *
 * 背景：工作台壳过去用 `/preview open` 聊天命令切到已经在跑的客户端运行视图，那条命令链
 * 随 Project Supervisor 前端链路整体退役；按 ADR（`docs/adr/【ADR】DirectProject独立聊天
 * 容器与工作台钱包布局-2026-09-18.md`），这个动作由 DirectProject 的「运行」入口承接，
 * 结果经聊天自己的 `announce` 交给聊天的本地消息流。
 *
 * 因此运行入口进入客户端运行视图前先问 Rust 要活体预览：`activate_local_game_preview`
 * 只核对内存 registry 并回传 loopback 地址，活着就复用（不重启预览服务），没活着
 * （stopped / 不属于这个项目 / 权限位要求确认）才回落到 `start_local_game_preview`。
 *
 * 成功反馈走工作台壳的 toast（`onRunNotice`），**不再**写进对话区：那条「已载入客户端
 * 运行视图：URL」以前常驻对话底部挡住运行画面。用例因此直接断言这条通道，并反过来钉住
 * 对话容器里没有这类提示。
 *
 * 这条行为过去只剩 `scripts/check-native-shells.mjs` 的源码守卫与 Rust 实现，前端没有
 * 用例；一旦有人再把它当死链路删掉，守卫会先报「missing await invoke」而不知道现场。
 */

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

import type { GameCreationAppManifest } from '../../../packages/shared/src/contracts/gameCreationApp';
import {
  App,
  createGameCreationAppManifest,
  createProjectChatRuntimeHarness,
  expect,
  render,
  screen,
  waitFor,
} from './appSurface/harness';

const PROJECT_PATH = '/tmp/preview-activation-project';
const PROJECT_ID = 'preview-activation-project';
const PREVIEW_URL = 'http://127.0.0.1:43210/game/index.html';

function createFixtureManifest(): GameCreationAppManifest {
  return createGameCreationAppManifest(PROJECT_ID, '预览切换项目');
}

/**
 * `activate_local_game_preview` 的替身由用例给定：它决定「这条预览还活着吗」，
 * 其余命令沿用聊天 harness，运行入口之外的链路保持真实形状。
 */
function installTauri(
  activateLocalGamePreview: () => unknown,
  options: { startFails?: string } = {},
) {
  const manifest = createFixtureManifest();
  const chatHarness = createProjectChatRuntimeHarness({
    projectPath: PROJECT_PATH,
  });
  const invokeCounts = new Map<string, number>();
  const invoke = vi.fn(
    async (command: string, args?: Record<string, unknown>) => {
      invokeCounts.set(command, (invokeCounts.get(command) ?? 0) + 1);
      if (command === 'get_local_game_manifest') {
        return manifest;
      }
      if (command === 'get_local_game_project_revision') {
        return { revision: 3 };
      }
      if (command === 'activate_local_game_preview') {
        return activateLocalGamePreview();
      }
      if (command === 'start_local_game_preview') {
        if (options.startFails) {
          throw new Error(options.startFails);
        }
        return { url: PREVIEW_URL, port: 43210, root: PROJECT_PATH };
      }
      return chatHarness.invoke(command, args);
    },
  );
  window.__TAURI__ = {
    core: { invoke: invoke as never },
    event: { listen: chatHarness.listen as never },
  };
  return { invoke, invokeCounts };
}

/** 「运行」入口由工作台壳的播放请求驱动，这里直接用同一形状的请求触发。 */
function renderRunningProjectChat() {
  const onRunNotice = vi.fn();
  render(
    <App
      initialProjectPath={PROJECT_PATH}
      initialProjectManifest={createFixtureManifest()}
      onPlayRequestHandled={vi.fn()}
      onRunNotice={onRunNotice}
      playRequest={{ projectPath: PROJECT_PATH, requestId: 1 }}
    />,
  );
  return { onRunNotice };
}

/** 运行反馈走 toast；对话容器里不该再出现这类过程提示。 */
async function expectRunNoticeWithoutChatTip(
  onRunNotice: ReturnType<typeof vi.fn>,
  message: string,
) {
  await waitFor(() => expect(onRunNotice).toHaveBeenCalledWith({ message }));
  const surface = await screen.findByLabelText('陶泥儿项目对话');
  expect(surface.textContent ?? '').not.toContain('运行通过');
  expect(surface.textContent ?? '').not.toContain('已切换到客户端运行视图');
}

beforeEach(() => {
  window.history.pushState({}, '', '/');
});

describe('运行入口切到已经在跑的客户端预览', () => {
  it('预览还活着时只切视图，不重启预览服务', async () => {
    const { invoke, invokeCounts } = installTauri(() => ({
      status: 'running',
      url: PREVIEW_URL,
      port: 43210,
      root: PROJECT_PATH,
    }));

    const { onRunNotice } = renderRunningProjectChat();

    await waitFor(() =>
      expect(invoke).toHaveBeenCalledWith('activate_local_game_preview', {
        projectPath: PROJECT_PATH,
      }),
    );
    await expectRunNoticeWithoutChatTip(onRunNotice, '已载入客户端运行视图');
    expect(invokeCounts.get('start_local_game_preview') ?? 0).toBe(0);
  });

  it('预览不在跑时回落到重新启动预览', async () => {
    const { invokeCounts } = installTauri(() => ({
      status: 'stopped',
      url: null,
      port: null,
      root: null,
    }));

    const { onRunNotice } = renderRunningProjectChat();

    await waitFor(() =>
      expect(invokeCounts.get('start_local_game_preview') ?? 0).toBeGreaterThan(
        0,
      ),
    );
    await expectRunNoticeWithoutChatTip(
      onRunNotice,
      '运行通过，已载入客户端运行视图',
    );
  });

  it('权限位要求确认时不把拒绝当错误，直接回落到重新启动预览', async () => {
    const { invokeCounts } = installTauri(() => {
      throw new Error('需要先确认预览权限');
    });

    const { onRunNotice } = renderRunningProjectChat();

    await waitFor(() =>
      expect(invokeCounts.get('start_local_game_preview') ?? 0).toBeGreaterThan(
        0,
      ),
    );
    await expectRunNoticeWithoutChatTip(
      onRunNotice,
      '运行通过，已载入客户端运行视图',
    );
  });

  it('启动预览失败时走失败色提示，不再写进对话区', async () => {
    installTauri(
      () => ({ status: 'stopped', url: null, port: null, root: null }),
      { startFails: '预览端口被占用' },
    );

    const { onRunNotice } = renderRunningProjectChat();

    await waitFor(() =>
      expect(onRunNotice).toHaveBeenCalledWith({
        tone: 'error',
        message: '运行游戏失败：预览端口被占用',
      }),
    );
    const surface = await screen.findByLabelText('陶泥儿项目对话');
    expect(surface.textContent ?? '').not.toContain('预览端口被占用');
  });
});