import { test } from 'node:test';
import assert from 'node:assert/strict';
import { join } from 'node:path';
import { existsSync, readFileSync, mkdirSync, writeFileSync } from 'node:fs';
import { makeTempMonorepo, makeSeed, cleanup } from './helpers.mjs';
import { copySeed, setProjectIdentity, scaffoldGameAssets } from '../lib/scaffold.mjs';

test('copySeed 复制种子并清理缓存目录', () => {
  const mono = makeTempMonorepo();
  try {
    const seed = makeSeed(mono.root);
    mkdirSync(join(seed, 'library'), { recursive: true }); // 模拟缓存
    writeFileSync(join(seed, 'library', 'x'), '1');
    const dest = join(mono.games, 'demo');
    copySeed(seed, dest);
    assert.ok(existsSync(join(dest, 'package.json')));
    assert.ok(existsSync(join(dest, 'settings', 'v2.json')));
    assert.ok(!existsSync(join(dest, 'library')), 'library 应被清理');
  } finally {
    cleanup(mono.root);
  }
});

test('copySeed 拒绝覆盖已存在目标', () => {
  const mono = makeTempMonorepo();
  try {
    const seed = makeSeed(mono.root);
    const dest = join(mono.games, 'demo');
    copySeed(seed, dest);
    assert.throws(() => copySeed(seed, dest), /已存在/);
  } finally {
    cleanup(mono.root);
  }
});

test('setProjectIdentity 改 name 并生成新 uuid', () => {
  const mono = makeTempMonorepo();
  try {
    const seed = makeSeed(mono.root);
    const dest = join(mono.games, 'demo');
    copySeed(seed, dest);
    const pkg = setProjectIdentity(dest, 'doudizhu');
    assert.equal(pkg.name, 'doudizhu');
    assert.notEqual(pkg.uuid, 'seed-uuid');
    assert.match(pkg.uuid, /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$/);
    const onDisk = JSON.parse(readFileSync(join(dest, 'package.json'), 'utf8'));
    assert.equal(onDisk.name, 'doudizhu');
    assert.equal(onDisk.creator.version, '3.8.8'); // 引擎版本保留
  } finally {
    cleanup(mono.root);
  }
});

test('scaffoldGameAssets 铺出 game 骨架（GameModule/theme/override）', () => {
  const mono = makeTempMonorepo();
  try {
    const seed = makeSeed(mono.root);
    const dest = join(mono.games, 'demo');
    copySeed(seed, dest);
    scaffoldGameAssets(dest, 'doudizhu');
    const gm = readFileSync(join(dest, 'assets', 'game', 'GameModule.ts'), 'utf8');
    assert.match(gm, /doudizhu/);
    assert.match(gm, /docs\/protocol/); // 提醒协议 SSOT
    assert.ok(existsSync(join(dest, 'assets', 'game', 'theme.ts')));
    assert.ok(existsSync(join(dest, 'assets', 'game', 'override', '.gitkeep')));
  } finally {
    cleanup(mono.root);
  }
});