import { mkdtempSync, mkdirSync, writeFileSync, rmSync } from 'node:fs';
import { tmpdir } from 'node:os';
import { join } from 'node:path';

// 构造一个临时 monorepo：YouleNexus(host) + framework 真源 + 空 games/
export function makeTempMonorepo() {
  const root = mkdtempSync(join(tmpdir(), 'youle-mono-'));
  const host = join(root, 'YouleNexus');
  const framework = join(host, 'assets', 'framework');
  mkdirSync(framework, { recursive: true });
  writeFileSync(
    join(host, 'package.json'),
    JSON.stringify({ name: 'YouleNexus', uuid: 'host-uuid', creator: { version: '3.8.8' } }, null, 2)
  );
  writeFileSync(join(framework, 'README.md'), '# framework src\n');
  const games = join(root, 'games');
  mkdirSync(games, { recursive: true });
  return { root, host, framework, games };
}

// 在 gamesDir 下造一个子游戏工程（含 package.json）
export function makeGameProject(gamesDir, name, version = '3.8.8') {
  const dir = join(gamesDir, name);
  mkdirSync(join(dir, 'assets'), { recursive: true });
  writeFileSync(
    join(dir, 'package.json'),
    JSON.stringify({ name, uuid: `${name}-uuid`, creator: { version } }, null, 2)
  );
  return dir;
}

// 造一个最小种子工程
export function makeSeed(root) {
  const seed = join(root, 'templates', 'game-seed');
  mkdirSync(join(seed, 'assets'), { recursive: true });
  mkdirSync(join(seed, 'settings'), { recursive: true });
  writeFileSync(
    join(seed, 'package.json'),
    JSON.stringify({ name: 'game-seed', uuid: 'seed-uuid', creator: { version: '3.8.8' } }, null, 2)
  );
  writeFileSync(join(seed, 'settings', 'v2.json'), '{}\n');
  return seed;
}

export function cleanup(root) {
  rmSync(root, { recursive: true, force: true });
}