#!/usr/bin/env node
import { join } from 'node:path';
import { existsSync } from 'node:fs';
import { pathToFileURL } from 'node:url';
import { FRAMEWORK_UI_DIR, GAMES_DIR, gameOverrideDir } from './lib/paths.mjs';
import { listCoverableAssets, validateOverrides } from './lib/skin.mjs';

/** 校验某子游戏的皮肤覆盖。opts 可注入路径用于测试。 */
export function checkSkin(gameName, opts = {}) {
  const gamesDir = opts.gamesDir ?? GAMES_DIR;
  const frameworkUiDir = opts.frameworkUiDir ?? FRAMEWORK_UI_DIR;

  const projectDir = join(gamesDir, gameName);
  if (!existsSync(projectDir)) {
    throw new Error(`找不到子游戏工程：${projectDir}`);
  }
  // override 目录不存在 = 该子游戏不换肤，合法
  const { matched, errors } = validateOverrides(frameworkUiDir, gameOverrideDir(projectDir));
  return { matched, errors, frameworkTotal: listCoverableAssets(frameworkUiDir).length };
}

// CLI 入口：有错误则退出码 1
if (process.argv[1] && import.meta.url === pathToFileURL(process.argv[1]).href) {
  const name = process.argv[2];
  if (!name) {
    console.error('用法: npm run check-skin <game>');
    process.exit(1);
  }
  const { matched, errors, frameworkTotal } = checkSkin(name);
  console.log(`皮肤命中 ${matched.length} 处，框架可覆盖资源共 ${frameworkTotal} 个`);
  if (errors.length === 0) {
    console.log('OK: override 全部合法。');
    process.exit(0);
  }
  console.error(`\n发现 ${errors.length} 处问题（子游戏 ${name}）：`);
  for (const e of errors) {
    console.error(`  [${e.code}] ${e.path}\n      ${e.message}`);
  }
  process.exit(1);
}