InsidersByte/honeymoon-gift-list

const GiftSet = require('../../models/GiftSet');
const Giver = require('../../models/Giver');
const User = require('../../models/User');
const wrap = require('../../utilities/wrap');
const Mailer = require('../../mail');
const { PAYMENT_METHODS } = require('../../../lib/constants');
const { generatePaypalMeLink } = require('../../../lib/paypal');

const mailer = new Mailer();

module.exports = ({ express, config, secure }) => {
  const router = new express.Router();

  router
    .route('/')
    .get(
      secure,
      wrap(function* getGiftSets(req, res) {
        const giftSets = yield GiftSet.forge().orderBy('created_at', 'DESC').fetchAll({ withRelated: ['gifts', 'giver'] });

        return res.json(giftSets);
      })
    )
    .post(
      wrap(function* createGiftSet(req, res) {
        req.checkBody('giver').notEmpty();
        req.checkBody('giver.forename').notEmpty();
        req.checkBody('giver.surname').notEmpty();
        req.checkBody('giver.email').isEmail();
        req.checkBody('giver.phoneNumber').notEmpty();
        req.checkBody('giver.paymentMethod').isIn([PAYMENT_METHODS.PAYPAL, PAYMENT_METHODS.BANK_TRANSFER]);
        req.checkBody('basket').notEmpty();

        const errors = req.validationErrors();

        if (errors) {
          return res.status(400).send(errors);
        }

        const { giver: { forename, surname, email, phoneNumber, paymentMethod }, basket } = req.body;

        let giver = yield Giver.forge({ email }).fetch();

        if (!giver) {
          giver = yield Giver.forge({ forename, surname, email, phoneNumber }).save();
        }

        const giverId = giver.get('id');
        const giftIds = basket.map(({ id, quantity, price }) => ({ gift_id: id, quantity, price }));

        const giftSet = yield GiftSet.forge({ giverId, paymentMethod }).save();

        yield giftSet.gifts().attach(giftIds);

        yield giftSet.refresh({ withRelated: ['gifts'] });

        const paypalLink = generatePaypalMeLink({ username: config.paypalMeUsername, amount: giftSet.get('total') });

        yield mailer.send({ to: giver.get('email'), subject: 'Gift Confirmation', giftSet: giftSet.toJSON(), PAYMENT_METHODS, paypalLink }, 'confirmation');

        const users = yield User.fetchAll();

        const userEmails = users.map(user => user.get('email'));

        yield mailer.send({ to: userEmails, subject: 'Woop we just got a gift!', giver: giver.toJSON(), giftSet: giftSet.toJSON() }, 'adminConfirmation');

        giftSet.set({ emailSent: true });

        yield giftSet.save();

        return res.status(201).json(giftSet);
      })
    );

  router
    .route('/:id')
    .get(
      wrap(function* getGiftSet(req, res) {
        const { id } = req.params;

        const giftSet = yield GiftSet.forge({ id }).fetch({ withRelated: ['gifts', 'giver'] });

        if (!giftSet) {
          return res.status(404).send();
        }

        const paypalLink = generatePaypalMeLink({ username: config.paypalMeUsername, amount: giftSet.get('total') });
        const giftSetWithPaypalLink = Object.assign({}, giftSet.toJSON(), { paypalLink });

        return res.json(giftSetWithPaypalLink);
      })
    )
    .delete(
      secure,
      wrap(function* deleteGiftSet(req, res) {
        const { id } = req.params;

        const giftSet = yield GiftSet.forge({ id }).fetch({ withRelated: ['gifts'] });

        if (!giftSet) {
          return res.status(404).send();
        }

        const paid = giftSet.get('paid');

        if (paid) {
          return res.status(400).send({ message: 'A Gift Set marked as paid cannot be deleted' });
        }

        const gifts = giftSet.related('gifts');
        const giftIds = gifts.map(o => o.get('id'));
        yield giftSet.gifts().detach(giftIds);
        yield giftSet.destroy();

        return res.status(204).send();
      })
    );

  router.route('/:id/paid').put(
    secure,
    wrap(function* markAsPaid(req, res) {
      const { id } = req.params;

      const giftSet = yield GiftSet.forge({ id }).fetch({ withRelated: ['gifts', 'giver'] });

      if (!giftSet) {
        return res.status(404).send();
      }

      giftSet.set({ paid: true });

      yield giftSet.save();

      return res.status(200).json(giftSet);
    })
  );

  router.route('/:id/detailsSent').put(
    secure,
    wrap(function* markAsDetailsSent(req, res) {
      const { id } = req.params;

      const giftSet = yield GiftSet.forge({ id }).fetch({ withRelated: ['gifts', 'giver'] });

      if (!giftSet) {
        return res.status(404).send();
      }

      giftSet.set({ paymentDetailsSent: true });

      yield giftSet.save();

      return res.status(200).send(giftSet);
    })
  );

  return router;
};