'use strict';

const config = require('./config');
const { createApp } = require('./app');
const db = require('./infra/db');
const redis = require('./infra/redis');
const modules = require('./modules/modules');
const precompute = require('./precompute');

async function bootstrap() {
  // 1. 注册预计算器
  precompute.registerAll();
  await require('./precompute/crew-metrics').ensureSchema();

  // 2. 启动一致性校验（注册表 SSOT + modules 表对齐，§5.4）
  await modules.syncModulesOnBoot();

  // 3. 起 API 服务；导出 Worker 以独立进程运行，避免阻塞 HTTP 请求。
  const app = createApp();
  const server = app.listen(config.port, '127.0.0.1', () => {
    console.log(`[server] listening on http://127.0.0.1:${config.port}/api/v1`);
  });

  // 4. 优雅退出
  const shutdown = async (sig) => {
    console.log(`[server] ${sig} received, shutting down...`);
    server.close();
    await db.close().catch(() => {});
    await redis.close().catch(() => {});
    process.exit(0);
  };
  process.on('SIGINT', () => shutdown('SIGINT'));
  process.on('SIGTERM', () => shutdown('SIGTERM'));
}

bootstrap().catch((err) => {
  console.error('[server] bootstrap failed:', err);
  process.exit(1);
});