const express = require('express')
const _ = require('lodash/fp')
const router = express.Router()

const cashbox = require('../cashbox-batches')
const notifier = require('../notifier')
const { getMachine, getMachineName } = require('../machine-loader')
const { loadLatestConfig } = require('../new-settings-loader')
const { getCashInSettings } = require('../new-config-manager')
const { AUTOMATIC } = require('../constants')
const logger = require('../logger')

function cashboxRemoval(req, res, next) {
  notifier.cashboxNotify(req.deviceId).catch(logger.error)

  return Promise.all([getMachine(req.deviceId), loadLatestConfig()])
    .then(([machine, config]) => {
      const cashInSettings = getCashInSettings(config)
      if (cashInSettings.cashboxReset !== AUTOMATIC) {
        return Promise.all([
          cashbox.getMachineUnbatchedBills(req.deviceId),
          getMachineName(req.deviceId),
        ])
      }
      return cashbox
        .createCashboxBatch(req.deviceId, machine.cashbox)
        .then(batch =>
          Promise.all([
            cashbox.getBatchById(batch.id),
            getMachineName(batch.device_id),
          ]),
        )
    })
    .then(([batch, machineName]) =>
      res
        .status(200)
        .send({ batch: _.merge(batch, { machineName }), status: 'OK' }),
    )
    .catch(next)
}

router.post('/removal', cashboxRemoval)

module.exports = router