#!/usr/bin/env node
'use strict';

// 先于其它模块：摘掉 NOTIFY_SOCKET，避免任意子进程误发 systemd notify
require('../lib/systemd-env');

const path = require('path');
const { exec } = require('child_process');
const { ClawClient } = require('../lib/client');
const config = require('../lib/config');
const log = require('../lib/logger');
const { pollSms } = require('../drivers/sim/sms-reader');

// 启动时确保 clawd.service ReadWritePaths 包含 /etc/hosts /etc/hostname（幂等修复）
const fs = require('fs');
const SERVICE_FILE = '/etc/systemd/system/clawd.service';
try {
  const svc = fs.readFileSync(SERVICE_FILE, 'utf8');
  if (svc.includes('ReadWritePaths=') && !svc.includes('/etc/hosts')) {
    const fixed = svc.replace(/ReadWritePaths=([^\n]*)/, (_, rest) =>
      `ReadWritePaths=${rest.trimEnd()} /etc/hosts /etc/hostname`);
    fs.writeFileSync(SERVICE_FILE, fixed, 'utf8');
    exec('systemctl daemon-reload', () => {});
    log.info('clawd', 'clawd.service ReadWritePaths fixed');
  }
} catch (_) {}

// 每次启动绑定 Quectel 串口驱动（失败不影响主流程）
const bindScript = path.join(__dirname, '..', 'tools', 'bind-quectel-serial.sh');
exec(`bash "${bindScript}"`, (err, stdout, stderr) => {
  if (err) log.warn('clawd', `bind-quectel-serial: ${stderr || err.message}`);
  else     log.info('clawd', `bind-quectel-serial: ok`);
});

// 同步 Samba 共享密码（idempotent，失败不影响主流程）
const cfg = config.load();
if (cfg.share_key) {
  const shareKey = cfg.share_key.replace(/'/g, "'\\''");
  exec(`printf '%s\\n%s\\n' '${shareKey}' '${shareKey}' | smbpasswd -a sts -s 2>/dev/null`, (err) => {
    if (err) log.warn('clawd', `smbpasswd sync failed (samba not installed?): ${err.message}`);
    else     log.info('clawd', 'smbpasswd synced for user sts');
  });
}

let smsTimer = null;
let smsPolling = false;

async function pollSmsSafe() {
  if (smsPolling) return;
  smsPolling = true;
  try {
    const text = await pollSms();
    process.stdout.write(text);
  } catch (err) {
    log.warn('clawd', `sms-reader poll failed: ${err.message}`);
  } finally {
    smsPolling = false;
  }
}

const client = new ClawClient();
client.start();

pollSmsSafe();
smsTimer = setInterval(pollSmsSafe, 15_000);

let stopping = false;

function shutdown(signal) {
  if (stopping) return;
  stopping = true;
  log.info('clawd', `收到 ${signal}，正在停止...`);

  if (smsTimer) {
    clearInterval(smsTimer);
    smsTimer = null;
  }

  client.stop();
  setTimeout(() => process.exit(0), 500);
}

process.on('SIGINT',  () => shutdown('SIGINT'));
process.on('SIGTERM', () => shutdown('SIGTERM'));