// @vitest-environment node
import { mkdir, mkdtemp, rm, symlink, writeFile } from 'node:fs/promises';
import { tmpdir } from 'node:os';
import { join } from 'node:path';
import { afterEach, describe, expect, it } from 'vitest';
import { inspectWorkPresence } from '../../electron/coding-runtime/work-presence';

const directories: string[] = [];
async function project() {
  const directory = await mkdtemp(join(tmpdir(), 'makelore-work-presence-'));
  directories.push(directory);
  return directory;
}
afterEach(async () => {
  await Promise.all(directories.splice(0).map(directory => rm(directory, { recursive: true, force: true })));
});

describe('local work presence', () => {
  it('recognizes a new project with only metadata, knowledge and imported materials', async () => {
    const root = await project();
    expect(await inspectWorkPresence(root)).toBe('empty');
    for (const directory of ['.makelore', '.git', 'knowledge', 'assets', 'node_modules/dependency']) {
      await mkdir(join(root, directory), { recursive: true });
    }
    for (const file of ['.makelore/project.json', '.git/config', 'knowledge/example.html', 'node_modules/dependency/index.js',
      'assets/角色.PNG', 'assets/背景.svg', 'README.md', '.DS_Store']) {
      await writeFile(join(root, file), 'material');
    }
    expect(await inspectWorkPresence(root)).toBe('empty');
  });

  it.each(['index.html', 'public/game.html', 'apps/game/src/App.tsx', 'dist/index.html', 'package.json', 'server.py', 'custom.work', 'knowledge', '.makelore', 'Knowledge/game.html'])(
    'retains startup for possible work at %s', async file => {
    const root = await project();
    const parts = file.split('/');
    parts.pop();
    await mkdir(join(root, ...parts), { recursive: true });
    await writeFile(join(root, file), 'work');
    expect(await inspectWorkPresence(root)).toBe('possible');
    },
  );

  it('does not follow directory links or mistake them for an empty project', async () => {
    const root = await project();
    const outside = await project();
    await symlink(outside, join(root, 'linked-work'), process.platform === 'win32' ? 'junction' : 'dir');
    expect(await inspectWorkPresence(root)).toBe('unknown');
  });

  it('does not skip a knowledge symlink as if it were the local material directory', async () => {
    const root = await project();
    const outside = await project();
    await symlink(outside, join(root, 'knowledge'), process.platform === 'win32' ? 'junction' : 'dir');
    expect(await inspectWorkPresence(root)).toBe('unknown');
  });

  it('does not classify unreadable or missing projects as empty', async () => {
    const root = await project();
    expect(await inspectWorkPresence(join(root, 'missing'))).toBe('unknown');
  });

  it('bounds deep traversal without hiding potential work', async () => {
    const root = await project();
    await mkdir(join(root, ...Array<string>(10).fill('nested')), { recursive: true });
    expect(await inspectWorkPresence(root)).toBe('unknown');
  });

  it('bounds wide traversal instead of declaring a partial scan empty', async () => {
    const root = await project();
    await Promise.all(Array.from({ length: 2_001 }, (_, index) => writeFile(join(root, `${index}.txt`), '')));
    expect(await inspectWorkPresence(root)).toBe('unknown');
  });
});