const createError = require('http-errors')
const express = require('express')
const path = require('path')
const logger = require('morgan')
const cors = require('cors')
const session = require('express-session')
const cookieParser = require('cookie-parser')
const indexRouter = require('./routes/index')
const userRouter = require('./routes/userRouter')

// mongodb数据库连接
const { connectMongoDB } = require('./db/mongodbConfig')
const loginUtil = require('./utils/loginUtil')

const app = express()

// 导入env
require('dotenv').config()
const loginSecret = process.env.SESSION_SECRET

app.use(logger('dev'))
app.use(express.json())
app.use(express.urlencoded({ extended: false }))
app.use(express.static(path.join(__dirname, 'public')))
app.use(cookieParser())
app.use(
  session({
    name: 'identityKey',
    secret: loginSecret,
    resave: false,
    saveUninitialized: false,
    cookie: {
      secure: false,
      maxAge: 1000 * 60 * 10
    }
  })
)

app.use(cors())

async function startServer() {
  try {
    await connectMongoDB()
  } catch (error) {
    console.error('Server error:', error)
    process.exit(1)
  }
}

startServer()

// app.use(loginUtil.authenticateSeesion)

// app.use('/', loginUtils.aopMiddleware, indexRouter);
app.use('/', indexRouter)
app.use('/user',loginUtil.authenticateSeesion, userRouter)

// catch 404 and forward to error handler
app.use(function (req, res, next) {
  next(createError(404))
})

// error handler
app.use(function (err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message
  res.locals.error = req.app.get('env') === 'development' ? err : {}

  // render the error page
  res.status(err.status || 500)
  res.json({
    error: true,
    message: err.message || 'Something went wrong',
    // 只在开发环境下返回堆栈信息
    ...(req.app.get('env') === 'development' ? { stack: err.stack } : {})
  })
})

module.exports = app