@extends('layout.master')

@section('body-class', 'page-cart')

@push('header')
  <script src="{{ asset('vendor/vue/2.6.14/vue.js') }}"></script>
  <script src="{{ asset('vendor/element-ui/2.15.6/js.js') }}"></script>
  <link rel="stylesheet" href="{{ asset('vendor/element-ui/2.15.6/css.css') }}">
@endpush

@section('content')
  <div class="container" id="app-cart" v-cloak>
    <nav aria-label="breadcrumb">
      <ol class="breadcrumb">
        <li class="breadcrumb-item"><a href="#">Home</a></li>
        <li class="breadcrumb-item active" aria-current="page">Library</li>
      </ol>
    </nav>

    <div class="row justify-content-center">
      <div class="col-12 col-md-9">@include('shared.steps', ['steps' => 1])</div>
    </div>

    <div class="row mt-5">
      <div class="col-12 col-md-9">
        <div class="cart-products-wrap">
          <table class="table">
            <thead>
              <tr>
                <th width="130">
                  <input class="form-check-input" type="checkbox" value="" id="check-all" v-model="allSelected">
                  <label class="form-check-label ms-1" for="check-all">
                    全选
                  </label>
                </th>
                <th width="230">商品</th>
                <th>数量</th>
                <th>小计</th>
                <th class="text-end">操作</th>
              </tr>
            </thead>
            <tbody>
              <tr v-for="product, index in products" :key="index">
                <td>
                  <div class="d-flex align-items-center p-image">
                    <input class="form-check-input" @change="selectedBtnSelected" type="checkbox" v-model="product.selected">
                    <img :src="product.image" class="img-fluid">
                  </div>
                </td>
                <td>
                  <div class="name mb-1 fw-bold" v-text="product.name"></div>
                  <div class="price text-muted">@{{ product.price_format }}</div>
                </td>
                <td>
                  <div class="quantity-wrap">
                    <input type="text" class="form-control" @input="quantityChange(product.quantity, product.cart_id)" onkeyup="this.value=this.value.replace(/\D/g,'')" v-model.number="product.quantity" name="quantity" minimum="1">
                    <div class="right">
                      <i class="bi bi-chevron-up"></i>
                      <i class="bi bi-chevron-down"></i>
                    </div>
                  </div>
                </td>
                <td>@{{ product.subtotal_format }}</td>
                <td class="text-end">
                  <button type="button" class="btn btn-link btn-sm" @click="checkedBtnDelete(product.cart_id)">删除</button><br>
                  <button type="button" class="btn btn-link btn-sm">加入收藏</button>
                </td>
              </tr>
            </tbody>
          </table>
        </div>
      </div>
      <div class="col-12 col-md-3">
        <div class="card total-wrap">
          <div class="card-header"><h5 class="mb-0">商品总计</h5></div>
          <div class="card-body">
            <ul class="list-group list-group-flush">
              <li class="list-group-item"><span>总数</span><span>@{{ total_quantity }}</span></li>
              <li class="list-group-item border-bottom-0"><span>总价</span><span class="total-price">@{{ amount_format }}</span></li>
              <li class="list-group-item d-grid gap-2 mt-3 border-bottom-0">
                {{-- <a href="{{ shop_route('checkout.index', 'checkout') }}" class="btn btn-primary">去结账</a> --}}
                <button type="button" class="btn btn-primary" @click="checkedBtnToCheckout">去结账</button>
              </li>
            </ul>
          </div>
        </div>
      </div>
    </div>
  </div>

@endsection

@push('add-scripts')
  <script>
    $(function() {
      const totalWrapTop = $('.total-wrap').offset().top;
      const totalWrapWidth = $('.total-wrap').outerWidth();
      const totalWrapLeft = $('.total-wrap').offset().left;

      $(window).scroll(function () {
        if ($(this).scrollTop() > totalWrapTop) {
          $('.total-wrap').addClass('total-wrap-fixed').css({'left': totalWrapLeft, 'width': totalWrapWidth})
        } else {
          $('.total-wrap').removeClass('total-wrap-fixed').css({'left': 0, 'width': 'auto'})
        }
      })
    });
  </script>

  <script>
    var app = new Vue({
      el: "#app-cart",
      data: {
        products: @json($data['carts']),
        total_quantity: @json($data['quantity']),
        amount: @json($data['amount']),
        amount_format: @json($data['amount_format']),
      },
      // components: {},
      // 计算属性
      computed: {
        allSelected: {
          get() {
            return !this.products.length ? false : this.products.every(s => s.selected)
          },
          set(val) {
            // return
            this.products.map(e => e.selected = val)
            this.selectedBtnSelected()
          }
        },
      },
      // 侦听器
      watch: {},
      // 组件方法
      methods: {
        checkedBtnToCheckout() {
          if (!this.products.some(e => e.selected)) {
            layer.msg('请选择至少一个商品', ()=>{})
            return
          }

          location = '{{ shop_route("checkout.index") }}'
        },

        quantityChange(quantity, cart_id) {
          const self = this;
          $.ajax({
            url: `/carts/${cart_id}`,
            type: 'PUT',
            data: {quantity: quantity,},
            success: function(res) {
              self.setUpdateData(res);
            }
          })
        },

        checkedBtnDelete(cart_id) {
          const self = this;

          $.ajax({
            url: `/carts/${cart_id}`,
            type: 'DELETE',
            success: function(res) {
              self.setUpdateData(res);
            }
          })
        },

        selectedBtnSelected() {
          const self = this;
          const cart_ids = this.products.filter(e => e.selected).map(x => x.cart_id)

          $.ajax({
            url: `/carts/select`,
            type: 'POST',
            data: {cart_ids: cart_ids},
            success: function(res) {
              self.setUpdateData(res);
            }
          })
        },

        setUpdateData(res) {
          this.products = res.data.carts
          this.amount_format = res.data.amount_format
          this.total_quantity = res.data.quantity
        }
      },
      // 实例被挂载后调用
      mounted () {
        // if (this.products.length) {
        //   this.products.forEach((e) => {
        //     this.$set(e, 'selected', false)
        //   })
        // }
      },
    })
  </script>
@endpush