const ObjectID = require('mongodb').ObjectID
const marked = require('marked')
const nodemailer = require('../config/nodemailer.config')

module.exports = function (server, db) {
  server.get('/', async (req, res) => {
    try {
      const store = await db.collection('content').findOne({})
      db.collection('categories')
        .find()
        .toArray((err, result) => {
          const categories = result.map(
            (category) =>
              category.title[0].toUpperCase() + category.title.slice(1)
          )
          res.render('main/index', {
            pageName: 'index',
            title: `${store.title} | Главная`,
            categories,
            store: {
              title: store.title,
              info: marked(store.info),
              infoBottom: marked(store.infoBottom),
              color: store.color,
            },
          })
        })
    } catch {
      res.status(500).render('main/404')
    }
  })
  server.get('/how-to-buy', async (req, res) => {
    try {
      const store = await db.collection('content').findOne({})
      res.render('main/how-to-buy', {
        pageName: 'how-to-buy',
        title: `${store.title} | Как купить товар`,
        store: {
          title: store.title,
          howToBuy: marked(store.howToBuy),
          color: store.color,
        },
      })
    } catch {
      res.status(500).render('main/404')
    }
  })
  server.get('/contacts', async (req, res) => {
    try {
      const store = await db.collection('content').findOne({})
      res.render('main/contacts', {
        pageName: 'contacts',
        title: `${store.title} | Контакты`,
        store: {
          title: store.title,
          contacts: marked(store.contacts),
          color: store.color,
        },
      })
    } catch {
      res.status(500).render('main/404')
    }
  })
  server.get('/comments', async (req, res) => {
    try {
      const store = await db.collection('content').findOne({})
      res.render('main/comments', {
        pageName: 'comments',
        title: `${store.title} | Отзывы`,
        store: {
          title: store.title,
          color: store.color,
        },
      })
    } catch {
      res.status(500).render('main/404')
    }
  })
  server.get('/my-orders', async (req, res) => {
    try {
      const store = await db.collection('content').findOne({})
      res.render('main/my-orders', {
        pageName: 'my-orders',
        title: `${store.title} | Мои покупки`,
        store: {
          title: store.title,
          color: store.color,
        },
      })
    } catch {
      res.status(500).render('main/404')
    }
  })
  server.get('/product/:id', async (req, res) => {
    const store = await db.collection('content').findOne({})
    const product = new Promise((resolve, reject) => {
      db.collection('items')
        .find({ _id: ObjectID(req.params.id) })
        .toArray()
        .then((items) => {
          const item = items.find((item) => item)
          resolve(item)
        })
    })

    product
      .then((item) => {
        return new Promise((resolve, reject) => {
          db.collection('categories')
            .find({ title: item.category })
            .toArray()
            .then((categories) => {
              const category = categories.find((category) => category)
              resolve({ item, category })
            })
        })
      })
      .then((data) => {
        const item = data.item,
          category = data.category
        res.render('main/product', {
          title: item.title,
          image: category.img,
          count: item.count,
          category: item.category[0].toUpperCase() + item.category.slice(1),
          price: item.price,
          description: marked(item.description),
          date: item.date,
          id: item._id,
          type: marked(category.type),
          format: marked(category.format),
          store: {
            title: store.title,
            recommendations: marked(store.recommendations),
            color: store.color,
          },
        })
      })
      .catch(() => {
        res.status(500).render('main/404')
      })
  })
  server.post('/my-orders', async (req, res) => {
    const buyers = await db
      .collection('buyers')
      .find({ email: req.body.email })
      .toArray()
    if (buyers.length > 0) {
      // рендерим html
      const html = buyers.map((buyer) => {
        return `
                    <b>Номер заказа: ${buyer.bill_id}</b><br>
                    <b>Дата оплаты: ${new Date(
                      buyer.date
                    ).toLocaleDateString()}</b><br>
                    <b>Данные товара:</b><br>
                    <p>${buyer.data.join('<br>')}</p>
                    <p>======================================================================</p>
                `
      })

      // высылаем данные покупателю
      try {
        await nodemailer.transporter.sendMail({
          from: `"Ваши покупки." <${process.env.EMAIL_LOGIN}>`,
          to: req.body.email,
          subject: 'Данные купленных товаров находятся в этом письме.',
          html: html.join(''),
        })
        res.json({ status: 'OK' })
      } catch (error) {
        res.json({ status: 'ERR' })
      }
    } else {
      res.json({ status: 'NF' })
    }
  })
}