const express = require('express')
const nodemailer = require('nodemailer')

require('dotenv').config()

// handle debug mode
let DEBUG

if (process.env.DEBUG || process.env.CHIPCHOC_DEBUG) {
  DEBUG = true
} else {
  DEBUG = false
}

if (DEBUG) console.log('Starting ChipChoc in debug mode')

// set up nodemailer
const perumal = nodemailer.createTransport({
  // (that's the name of badri's postmaster, in case you were wondering ;)
  host: process.env.CHIPCHOC_EMAIL_HOST,
  port: process.env.CHIPCHOC_EMAIL_PORT || 587,
  secure: process.env.CHIPCHOC_EMAIL_SECURE == 'false' ? false : true,
  auth: {
    user: process.env.CHIPCHOC_EMAIL_USER,
    pass: process.env.CHIPCHOC_EMAIL_PASSWORD,
  },
})

// decide base url for app (can be configured)
let baseUrl = process.env.CHIPCHOC_BASE_URL || '/'

const app = express()
var expressWs = require('express-ws')(app)

const router = express.Router()
app.use(baseUrl, router)

const port = process.env.CHIPCHOC_PORT || 5000

const cors = require('cors')
const path = require('path')

app.use(cors())

router.get('/air', (req, res) => {
  console.log(`Searching for contacts with the term: ${req.query.name}`)
  res.send({
    success: true,
    data: [],
  })
})


router.ws('/hit-send', (ws, request) => {
  console.log('Hitting send on some emails!')

  ws.on('message', async (message) => {
    try {
      message = JSON.parse(message)
    } catch(err) {
      ws.send(JSON.stringify({
        success: false,
        error: "We can't understand what you're saying! Me speak JSON only.",
      }))
      return
    }

      if (DEBUG) {
        console.log(`\n\n-------------------------- BEGIN EMAIL --------------------------\n`)
        console.log(`From: ${message.from}\nTo:${message.to}\nSubject:${message.subject||'(no subject)'}\n\n${message.text}`)
        console.log(`\n--------------------------- END EMAIL ---------------------------`)
      } else {
        console.log(`Sending email: ${message.from} -> ${message.to}`)

        // actually send the email
        let receipt = await perumal.sendMail({
          from: message.from || process.env.CHIPCHOC_DEFAULT_SENDER,
          to: message.to,
          bcc: message.from || process.env.CHIPCHOC_DEFAULT_SENDER,
          subject: message.subject,
          text: message.text,
          html: message.html,
        })

      }

    setTimeout(() => {
      ws.send(JSON.stringify({
        success: true,
        from: message.from,
        to: message.to,
      }))
    }, 2000)
  })

  ws.on('close', () => {
    console.log('socket closed')
  })
})

app.use(express.static('public'))
router.get('/', (req, res) => {
  res.sendFile(path.resolve(__dirname, 'public', 'index.html'))
})

app.listen(port, () => {
  console.log(`Server is up at port ${port}`)
})