nostrmarket/static/components/customer-stall/customer-stall.js

async function customerStall(path) {
  const template = await loadTemplateAsync(path)

  Vue.component('customer-stall', {
    name: 'customer-stall',
    template,

    props: [
      'stall',
      'products',
      'exchange-rates',
      'product-detail',
      'change-page',
      'relays'
    ],
    data: function () {
      return {
        cart: {
          total: 0,
          size: 0,
          products: new Map()
        },
        cartMenu: [],
        hasNip07: false,
        checkoutDialog: {
          show: false,
          data: {}
        },
        qrCodeDialog: {
          data: {
            payment_request: null
          },
          show: false
        }
      }
    },
    computed: {
      product() {
        if (this.productDetail) {
          return this.products.find(p => p.id == this.productDetail)
        }
      },
      finalCost() {
        if (!this.checkoutDialog.data.shippingzone) return this.cart.total

        let zoneCost = this.stall.shipping.find(
          z => z.id == this.checkoutDialog.data.shippingzone
        )
        return +this.cart.total + zoneCost.cost
      }
    },
    methods: {
      changePageS(page, opts) {
        this.$emit('change-page', page, opts)
      },
      getValueInSats(amount, unit = 'USD') {
        if (!this.exchangeRates) return 0
        return Math.ceil(
          (amount / this.exchangeRates[`BTC${unit}`][unit]) * 1e8
        )
      },
      getAmountFormated(amount, unit = 'USD') {
        return LNbits.utils.formatCurrency(amount, unit)
      },
      addToCart(item) {
        console.log('add to cart', item)
        let prod = this.cart.products
        if (prod.has(item.id)) {
          let qty = prod.get(item.id).quantity
          prod.set(item.id, {
            ...prod.get(item.id),
            quantity: qty + 1
          })
        } else {
          prod.set(item.id, {
            name: item.name,
            quantity: 1,
            price: item.price,
            image: item?.images[0] || null
          })
        }
        this.$q.notify({
          type: 'positive',
          message: `${item.name} added to cart`,
          icon: 'thumb_up'
        })
        this.cart.products = prod
        this.updateCart(+item.price)
      },
      removeFromCart(item) {
        this.cart.products.delete(item.id)
        this.updateCart(+item.price, true)
      },
      updateCart(price, del = false) {
        console.log(this.cart, this.cartMenu)
        if (del) {
          this.cart.total -= price
          this.cart.size--
        } else {
          this.cart.total += price
          this.cart.size++
        }
        this.cartMenu = Array.from(this.cart.products, item => {
          return {id: item[0], ...item[1]}
        })
        console.log(this.cart, this.cartMenu)
      },
      resetCart() {
        this.cart = {
          total: 0,
          size: 0,
          products: new Map()
        }
      },
      async getPubkey() {
        try {
          this.checkoutDialog.data.pubkey = await window.nostr.getPublicKey()
          this.checkoutDialog.data.privkey = null
        } catch (err) {
          console.error(
            `Failed to get a public key from a Nostr extension: ${err}`
          )
        }
      },
      generateKeyPair() {
        let sk = NostrTools.generatePrivateKey()
        let pk = NostrTools.getPublicKey(sk)
        this.checkoutDialog.data.pubkey = pk
        this.checkoutDialog.data.privkey = sk
      },
      async placeOrder() {
        // LNbits.utils
        //   .confirmDialog(
        //     `Send the order to the merchant? You should receive a message with the payment details.`
        //   )
        //   .onOk(async () => {
        let orderData = this.checkoutDialog.data
        let orderObj = {
          name: orderData?.username,
          description: null,
          address: orderData.address,
          message: null,
          contact: {
            nostr: orderData.pubkey,
            phone: null,
            email: orderData?.email
          },
          items: Array.from(this.cart.products, p => {
            return {product_id: p[0], quantity: p[1].quantity}
          })
        }
        let event = {
          ...(await NostrTools.getBlankEvent()),
          kind: 4,
          created_at: Math.floor(Date.now() / 1000),
          tags: [['p', this.stall.pubkey]],
          pubkey: orderData.pubkey
        }
        if (orderData.privkey) {
          event.content = await NostrTools.nip04.encrypt(
            orderData.privkey,
            this.stall.pubkey,
            JSON.stringify(orderObj)
          )
        } else {
          console.log('use extension')
          event.content = await window.nostr.nip04.encrypt(
            orderData.pubkey,
            JSON.stringify(orderObj)
          )
          let userRelays = Object.keys(
            (await window.nostr?.getRelays?.()) || []
          )
          if (userRelays.length != 0) {
            userRelays.map(r => this.relays.add(r))
          }
        }
        event.id = NostrTools.getEventHash(event)
        if (orderData.privkey) {
          event.sig = await NostrTools.signEvent(event, orderData.privkey)
        } else if (this.hasNip07) {
          event = await window.nostr.signEvent(event)
        }
        console.log(event, orderData)
        await this.sendOrder(event)
        // })
      },
      async sendOrder(order) {
        for (const url of Array.from(this.relays)) {
          let relay = NostrTools.relayInit(url)
          relay.on('connect', () => {
            console.log(`connected to ${relay.url}`)
          })
          relay.on('error', () => {
            console.log(`failed to connect to ${relay.url}`)
          })

          await relay.connect()
          let pub = relay.publish(order)
          pub.on('ok', () => {
            console.log(`${relay.url} has accepted our event`)
          })
          pub.on('failed', reason => {
            console.log(`failed to publish to ${relay.url}: ${reason}`)
          })
        }
        this.checkoutDialog = {show: false, data: {}}
        // const pool = new NostrTools.SimplePool()
        // let relays = Array.from(this.relays)
        // try {
        //   let pubs = await pool.publish(relays, order)
        //   pubs.on('ok', relay => {
        //     console.log(`${relay.url} has accepted our event`)
        //   })
        //   pubs.on('failed', (reason, err) => {
        //     console.log(`failed to publish to ${reason}: ${err}`)
        //   })
        // } catch (err) {
        //   console.error(err)
        // }
      }
    },
    created() {
      setTimeout(() => {
        if (window.nostr) {
          this.hasNip07 = true
        }
      }, 1000)
    }
  })
}