if (process.env.NODE_ENV !== 'production') {
  require('dotenv').config()
}

const MongoClient = require('mongodb').MongoClient
const db_config = require('./database')
const express = require('express')
const server = express()
const cors = require('cors')
const path = require('path')
const passport = require('passport')
const flash = require('express-flash')
const session = require('express-session')
const methodOverride = require('method-override')
const multer = require('multer')
const QiwiBillPaymentsAPI = require('@qiwi/bill-payments-node-js-sdk')

const qiwiApi = new QiwiBillPaymentsAPI(process.env.QIWI_SECRET_KEY)

MongoClient.connect(db_config.url, {
  useNewUrlParser: true,
  useUnifiedTopology: true,
})
  .then((client) => {
    const db = client.db(db_config.name)
    const storage = multer.diskStorage({
      destination: 'dist/public/img/service-icons',
      filename: function (req, file, cb) {
        cb(
          null,
          `${file.fieldname}-${Date.now()}${path.extname(file.originalname)}`
        )
      },
    })

    // Config
    server.use(cors())
    server.use(express.static(`${__dirname}/../dist/public`))
    server.use(multer({ storage: storage }).single('img'))
    server.use(express.urlencoded({ extended: false }))
    server.use(express.json())
    server.use(flash())
    server.use(
      session({
        secret: require('crypto-random-string')({ length: 64, type: 'base64' }),
        resave: true,
        saveUninitialized: false,
      })
    )
    server.use(passport.initialize())
    server.use(passport.session())
    server.use(methodOverride('_method'))
    server.set('view engine', 'pug')
    server.set('views', `${__dirname}/../dist/views`)

    // Routes
    require('./routes/main')(server, db) // маршруты сайта
    require('./routes/admin')(server, db) // маршрут с формой авторизации админа
    require('./routes/control-panel')(server, db) // маршруты с панелью управления
    require('./routes/api')(server, db) // отдача данных клиенту

    // Payments
    require('./routes/success')(server, db, qiwiApi)
    require('./routes/payments/qiwi.payment')(server, db, qiwiApi)

    // 404 Redirect
    server.use((req, res) => res.status(404).render('main/404'))
  })
  .catch((error) => {
    server.get('*', (req, res) => {
      res.send('Произошла ошибка.')
      console.log(error)
    })
  })
  .finally(
    server.listen(process.env.PORT || 3000, console.log('App is running...'))
  )