materio-d8/web/themes/custom/materiotheme/vuejs/components/Content/Product.vue

<template>
  <article class="product">
    <header>
      <h1 v-html="product.title" />
    </header>
    <section class="content">
      <div class="description" v-html="product.field_description" />
      <span class="price">{{ product.price__number }}</span>
    </section>
    <aside v-if="!isAdherent">
      <input
        v-if="product.field_multiple"
        v-model="quantity"
        placeholder="quantity"
        type="text"
        name="quantity"
        value="1"
      />
      <button
        type="button"
        name="addtocart"
        @click.stop="checkaddtocart"
      >
        Commander
      </button>
    </aside>

    <Modal
      v-if="showLoginModal"
      @close="closeModal"
      :styles="{width:'500px', height:'100%'}"
    >
      <h2>Please login or register before continue.</h2>
      <LoginRegister @onLogedIn="onLogedIn" @onRegistered="onRegistered" />
    </Modal>

  </article>
</template>

<script>

import { REST } from 'vuejs/api/rest-axios'
import router from 'vuejs/route'
import { mapState, mapActions } from 'vuex'
import Modal from 'vuejs/components/Helper/Modal'
import LoginRegister from 'vuejs/components/Helper/LoginRegister'

let basePath = drupalSettings.path.baseUrl + drupalSettings.path.pathPrefix;

export default {
  name: "Product",
  router,
  props: ['product'],
  data(){
    return {
      quantity: 1,
      showLoginModal:false
    }
  },
  computed: {
    ...mapState({
      isloggedin: state => state.User.isloggedin,
      isAdherent: state => state.User.isAdherent
    })
  },
  methods:{
    // ...mapActions({
    //   userLogin: 'User/userLogin'
    // }),
    closeModal () {
      this.showLoginModal = false;
    },
    checkaddtocart() {
      console.log('checkaddtocart');

      if(!this.isloggedin){
        // show popup for login or register
        // login or register event will be catched by onLogedin or onRegistered
        this.showLoginModal = true
      }else{
        // if already logedin directly goes to cart operations
        this.addtocart()
      }
    },
    // event bubbled from modal login form
    onLogedIn () {
      console.log('Product: onLogedIn');
      this.addtocart()
    },
    // event bubbled from modal register form
    onRegistered () {
      console.log('Product: onRegistered');
      this.addtocart()
    },
    getCarts () {
      return REST.get(`/cart?_format=json`)
        // .then(({ data }) => {
        //   console.log('current user carts: data', data)
        // })
        .catch(( error ) => {
            console.warn('Issue with get cart', error)
            Promise.reject(error)
        })
    },
    deleteCart (order_id) {
      console.log('deleting cart ', order_id);
      return REST.delete(`/cart/${order_id}/items?_format=json`)
        .then(({ data }) => {
          console.log(`product cart ${order_id} deleted: data`, data)
        })
        .catch(( error ) => {
            console.warn(`Issue with cart ${order_id} deleting`, error)
            Promise.reject(error)
        })
    },
    clearCarts (data) {
      let promises = [];
      // clear each cart as a promise
      for (var i = 0; i < data.length; i++) {
        promises.push(this.deleteCart(data[i].order_id))
      }
      // return all the promises as one
      return Promise.all(promises)
    },
    addtocart () {
      console.log("addtocart")
      this.getCarts()
        .then(({data}) => {
          console.log('current user carts: data', data)
          this.clearCarts(data)
            .then(() => {
              console.log('all carts cleared');
              // fill the cart with new product
              REST.post(`/cart/add?_format=json`, [{
                "purchased_entity_type": "commerce_product_variation",
                "purchased_entity_id": this.product.variation_id,
                "quantity": this.quantity
              }])
                .then(({ data }) => {
                  console.log('product added to cart: data', data)
                  this.closeModal()
                  // redirect to /cart
                  // window.location.href = "/cart"
                  // TODO: redirect to checkout instead of cart
                  window.location.href = `/checkout/${data[0].order_id}/order_information`
                })
                .catch(( error ) => {
                    console.warn('Issue with product add to cart', error)
                    Promise.reject(error)
                })
            })
        })
    }
  },
  components: {
    Modal,
    LoginRegister
  }
}
</script>

<style lang="scss" scoped>
</style>