/**
 * apps/api 唯一组装层入口(编码规范 §5.2)。
 * 只有 app/ 能同时认识多个模块:new adapter、注入 port、注册路由 / worker / Mastra 实例。
 */
import { serve } from '@hono/node-server';
import { loadConfig } from './config.ts';
import { createContainer } from './container.ts';
import { checkKeycloakConnection } from './keycloak-check.ts';
import { createServer } from './server.ts';
import { createConsumers } from './workers/consumers.ts';
import { dispatchOnce, startDispatcher } from './workers/dispatcher.ts';
import { advanceOnce, startTaskAdvancer } from './workers/task-advancer.ts';
import { registerPulse } from './workers/pulse.ts';

export async function boot(): Promise<void> {
  const config = loadConfig();
  if (config.keycloak === undefined) {
    process.stderr.write(
      '✗ 缺 KEYCLOAK_URL / KEYCLOAK_REALM / KEYCLOAK_CLIENT_ID —— 统一鉴权中心是唯一的登录途径,缺了谁也进不来(ADR-012)\n',
    );
    process.exit(1);
  }
  try {
    const info = await checkKeycloakConnection(config.keycloak);
    process.stdout.write(`✓ Keycloak 连通 · issuer=${info.issuer} · client=${info.clientId}\n`);
  } catch (error) {
    // 配置错了就别启动,免得跑起来每个请求都 401 还查不出原因(手册第 5 步)
    process.stderr.write(`✗ Keycloak 连不上或配置有误:${error instanceof Error ? error.message : String(error)}\n`);
    process.exit(1);
  }
  const container = await createContainer(config);
  await container.org.ensureSeeded();

  // 派发器:投递记录即队列,按目标 ID 取 advisory lock 串行消费(ADR-008)
  const dispatcherDeps = { container, consumers: createConsumers() };
  const dispatcher = startDispatcher(dispatcherDeps, config.dispatchIntervalMs);

  // 过程在后端:运行中的任务由推进器一拍一拍推,不依赖浏览器在线
  const advancer = startTaskAdvancer({ container }, config.dispatchIntervalMs);

  /*
   * 人一答完就踢一脚 —— **顺序有意义**:先把事件投递下去(任务才醒),再推它一拍。
   * 反过来登记的话,推进那一轮跑在投递之前,任务还没醒,白跑一轮,
   * 人还是要等下一个 2 秒。
   */
  registerPulse(() => dispatchOnce(dispatcherDeps));
  registerPulse(() => advanceOnce({ container }));

  const app = createServer(container);
  serve({ fetch: app.fetch, port: config.port }, (info) => {
    process.stdout.write(`JCAI api · http://localhost:${info.port} · env=${config.nodeEnv}\n`);
  });

  const shutdown = async (): Promise<void> => {
    dispatcher.stop();
    advancer.stop();
    await container.close();
    process.exit(0);
  };
  process.on('SIGINT', () => void shutdown());
  process.on('SIGTERM', () => void shutdown());
}

if (import.meta.url === `file://${process.argv[1]}`) {
  await boot();
}