/** @vitest-environment jsdom */
import { act, renderHook, waitFor } from '@testing-library/react';
import { beforeEach, describe, expect, it, vi } from 'vitest';

import { normalizeProjectCreationDirectory } from '../src/features/app-shell/model';
import { useProjectCreationDirectory } from '../src/features/app-shell/useProjectCreationDirectory';
import {
  readWorkspacePreferences,
  resetWorkspacePreferencesForTests,
  setProjectCreationDirectory,
} from '../src/features/app-shell/workspacePreferences';

describe('项目创建目录偏好', () => {
  beforeEach(() => {
    resetWorkspacePreferencesForTests();
    delete window.__TAURI__;
  });

  it('去掉首尾空白与多余分隔符，并保留盘根', () => {
    expect(normalizeProjectCreationDirectory('  ')).toBe('');
    expect(normalizeProjectCreationDirectory('  F:\\Projects\\游戏\\  ')).toBe(
      'F:\\Projects\\游戏',
    );
    expect(normalizeProjectCreationDirectory('F:/Projects/游戏/')).toBe(
      'F:/Projects/游戏',
    );
    expect(normalizeProjectCreationDirectory('C:\\')).toBe('C:\\');
    // 首尾空白按 trim 处理；目录中间的控制字符必须整条拒绝。
    expect(normalizeProjectCreationDirectory('F:\\游戏\n')).toBe('F:\\游戏');
    expect(normalizeProjectCreationDirectory('F:\\游\n戏')).toBe('');
  });

  it('在无 Tauri 时由内存快照承接设置交互', async () => {
    await expect(readWorkspacePreferences()).resolves.toMatchObject({
      projectCreationDirectory: null,
    });
    await expect(
      setProjectCreationDirectory('C:\\Projects\\games'),
    ).resolves.toMatchObject({
      projectCreationDirectory: 'C:\\Projects\\games',
    });
    await expect(readWorkspacePreferences()).resolves.toMatchObject({
      projectCreationDirectory: 'C:\\Projects\\games',
    });
    await expect(setProjectCreationDirectory(null)).resolves.toMatchObject({
      projectCreationDirectory: null,
    });
  });

  it('非法目录不会进入正式快照', async () => {
    await expect(
      setProjectCreationDirectory('relative/games'),
    ).resolves.toMatchObject({
      projectCreationDirectory: null,
    });
  });

  it('订阅成功后读取的旧快照不会覆盖较新的 Rust 偏好事件', async () => {
    let resolveRead:
      | ((snapshot: {
          projectCreationDirectory: string | null;
          recentWorkspaces: string[];
        }) => void)
      | null = null;
    let eventHandler:
      | ((event: {
          payload: {
            projectCreationDirectory: string | null;
            recentWorkspaces: string[];
          };
        }) => void)
      | null = null;
    const invoke = vi.fn(async (command: string) => {
      if (command === 'read_workspace_preferences') {
        return await new Promise<{
          projectCreationDirectory: string | null;
          recentWorkspaces: string[];
        }>((resolve) => {
          resolveRead = resolve;
        });
      }
      throw new Error('unexpected invoke ' + command);
    });
    window.__TAURI__ = {
      core: { invoke },
      event: {
        listen: vi.fn(async (_event, handler) => {
          eventHandler = handler;
          return () => {
            eventHandler = null;
          };
        }),
      },
    };

    const { result } = renderHook(() => useProjectCreationDirectory());
    await waitFor(() => {
      expect(invoke).toHaveBeenCalledWith('read_workspace_preferences');
    });
    act(() => {
      eventHandler?.({
        payload: {
          projectCreationDirectory: 'F:\\Projects\\new',
          recentWorkspaces: [],
        },
      });
    });
    await act(async () => {
      resolveRead?.({
        projectCreationDirectory: null,
        recentWorkspaces: [],
      });
    });
    await waitFor(() => {
      expect(result.current.projectCreationDirectory).toBe('F:\\Projects\\new');
    });
  });
});