import 'dotenv/config'
import path from 'node:path'
import fs from 'node:fs'
import express from 'express'
import cors from 'cors'
import authRouter from './routes/auth.js'
import dataRouter from './routes/data.js'
import newsRouter from './routes/news.js'
import alertsRouter from './routes/alerts.js'
import articlesRouter from './routes/articles.js'
import otaRouter from './routes/ota.js'
import apizeroRouter from './routes/apizero.js'
import monitorsRouter from './routes/monitors.js'
import mihomeRouter from './routes/mihome.js'
import checkinRouter from './routes/checkin.js'
import checklistsRouter from './routes/checklists.js'
import projectsRouter, { columnRouter } from './routes/projects.js'
import tasksRouter from './routes/tasks.js'
import powersyncRouter from './routes/powersync.js'

const PORT = Number(process.env.PORT) || 3001
const DIST_DIR = path.join(process.cwd(), 'dist')
const HAS_DIST = fs.existsSync(DIST_DIR)

const app = express()
app.use(cors())
app.use(express.json())

// 健康检查
app.get('/api/health', (_req, res) => res.json({ ok: true, ts: Date.now() }))

// 业务路由
app.use('/api/auth', authRouter)
// OTA 接口是公开的 (检查/下载更新不需要登录), 必须挂载在带 authRequired 的 router 之前,
// 否则 /api/ota/* 请求会先进入 dataRouter 等并被 authRequired 以 401 拦截
app.use('/api', otaRouter)
// PowerSync: token 签发 + 离线上行队列 (自带 authRequired, 同样必须挂在带 authRequired 的业务 router 之前)
app.use('/api/powersync', powersyncRouter)
app.use('/api', dataRouter)
app.use('/api', newsRouter)
app.use('/api', alertsRouter)
app.use('/api', articlesRouter)
app.use('/api', apizeroRouter)
app.use('/api', monitorsRouter)
app.use('/api/mihome', mihomeRouter)
// V0.2 打卡 / 日历 / 清单
app.use('/api/checkin', checkinRouter)
app.use('/api/checklists', checklistsRouter)
// V0.2 任务模块: 项目 / 列 / 任务
app.use('/api/projects', projectsRouter)
app.use('/api/columns', columnRouter)
app.use('/api', tasksRouter)

// 静态资源 (Vite build 产物)
if (HAS_DIST) {
  app.use(express.static(DIST_DIR, { index: false, maxAge: '1h', etag: true }))

  // SPA fallback: 非 /api/* 的请求一律返回 index.html, 由前端路由处理
  app.get(/^\/(?!api\/).*/, (_req, res, next) => {
    const indexHtml = path.join(DIST_DIR, 'index.html')
    if (!fs.existsSync(indexHtml)) return next()
    res.sendFile(indexHtml)
  })
}

// 统一错误处理
app.use((err, _req, res, _next) => {
  console.error('[api error]', err)
  res.status(500).json({ error: err.message || '服务器内部错误' })
})

// 启动定时任务: 每天凌晨 3 点拉取新闻; 0.2.1 验证部署以 DISABLE_CRON=1 关闭 (避免重复外呼)
if (process.env.DISABLE_CRON !== '1') {
  import('./cron.js').catch((e) => console.error('[cron] 加载失败:', e.message))

  // 米家环境监控定时调度 (独立注册, 不与 cron.js 绑定, 见 server/mihome/scheduler.js)
  import('./mihome/scheduler.js').catch((e) => console.error('[cron] 米家调度注册失败:', e.message))
}

app.listen(PORT, () => {
  console.log(`[iboard-api] listening on http://127.0.0.1:${PORT}`)
  console.log(`[iboard-api] static dist: ${HAS_DIST ? DIST_DIR : '(not built, API only)'}`)
})