<template>
  <div class="cartcontrol">
    <transition name="move">
      <div v-show="food.product_num>0" class="cart-decrease" @click.stop.prevent="decreaseCart">
        <span class="inner icon-remove_circle_outline"></span>
      </div>
    </transition>
    <div v-show="food.product_num>0" class="cart-count">{{food.product_num}}</div>
    <div class="cart-add icon-add_circle" @click.stop.prevent="addCart"></div>
  </div>
</template>

<script type="text/ecmascript-6">
import Vue from 'vue'

export default {
  props: {
    food: {
      type: Object
    }
  },
  methods: {
    addCart (event) {
      if (!event._constructed) {
        return
      }
      if (!this.food.product_num) {
        Vue.set(this.food, 'product_num', 1)
      } else {
        this.food.product_num++
      }
      this.$emit('add', event.target, this.food)
    },
    decreaseCart (event) {
      if (!event._constructed) {
        return
      }
      if (this.food.product_num) {
        this.food.product_num--
      }
      this.$emit('decrease', event.target, this.food)
    }
  }
}
</script>

<style lang="scss" scoped>
.cartcontrol {
  font-size: 0;

  .cart-decrease {
    display: inline-block;
    padding: 6px;
    opacity: 1;
    transform: translate3d(0, 0, 0);
  }

  .inner {
    display: inline-block;
    line-height: 24px;
    font-size: 24px;
    color: #D32323;
    transition: all 0.4s linear;
    transform: rotate(0);
  }

  &.move-enter-active, &.move-leave-active {
    transition: all 0.4s linear;
  }

  &.move-enter, &.move-leave-active {
    opacity: 0;
    transform: translate3d(24px, 0, 0);
  }

  .inner {
    transform: rotate(180deg);
  }

  .cart-count {
    display: inline-block;
    vertical-align: top;
    width: 14px;
    padding-top: 6px;
    line-height: 24px;
    text-align: center;
    font-size: 12px;
    color: #1F1E1E;
  }

  .cart-add {
    display: inline-block;
    padding: 6px;
    line-height: 24px;
    font-size: 24px;
    color: #D32323;
  }
}
</style>
