const router = module.exports = require('express-promise-router')()
const parseJSON = require('body-parser').json()
const db = require('../db')

const validate = require('./middleware/validators')

router.use(require('./middleware/ensureCart'))

router.put('/', async (req, res) => {
  const order = await db.order.create(req.cart.uuid);
  res.json(order)
})

router.get('/current', async (req, res) => {
  const order = await db.order.findForCart(req.cart.uuid);
  res.json(order)
})

router.post('/current/address', parseJSON, validate.address, validate.handleApiError, async (req, res) => {
  const origOrder = await db.order.findForCart(req.cart.uuid);
  if(!origOrder) throw new Error("Unable to find current order");

  const currentTransaction = origOrder
    .transactions.find(transaction => (
      transaction.payment_state === 'started'
    ))

  const {name, street1, street2, city, state, zip, country} = req.body;

  // Create address, update order
  const address = await db.address.create(name, street1, street2, city, state, zip, country)
  const order = await db.order.addAddress(currentTransaction, address)

  res.json(order)
})

router.post('/current/coupon', parseJSON, validate.coupon, validate.handleApiError, async (req, res) => {
  const origOrder = await db.order.findForCart(req.cart.uuid);
  if(!origOrder) throw new Error("Unable to find current order");

  const coupon = await db.coupon.find(req.body.code)

  const currentTransaction = origOrder
    .transactions.find(transaction => (
      transaction.payment_state === 'started'
    ))

  const order = await db.order.addCoupon(currentTransaction, coupon)
  res.json(order)
})