<template>
	<s-layout :title="$t('common.cart')" tabbar="/pages/index/cart" :bgStyle="{ color: '#fff' }">
		<s-empty v-if="state.list.length === 0" :text="$t('common.empty_cart')" icon="/static/cart-empty.png" />

		<!-- 头部 -->
		<view class="cart-box ss-flex ss-flex-col ss-row-between" v-if="state.list.length">
			<view class="cart-header ss-flex ss-col-center ss-row-between ss-p-x-30">
				<view class="header-left ss-flex ss-col-center ss-font-26">
					
					<text class="goods-number ui-TC-Main ss-flex"> {{ $t('common.total_goods',{number:state.list.length}) }}</text>
					
				</view>
				<view class="header-right">
					<button v-if="state.editMode" class="ss-reset-button" @tap="state.editMode = false">
						 {{ $t('common.cancel') }}
					</button>
					<button v-else class="ss-reset-button ui-TC-Main" @tap="state.editMode = true">
						{{ $t('common.edit') }}
					</button>
				</view>
			</view>
			<view class="ss-m-t-70">
				
			</view>
			<!-- 内容 -->
			<view class="cart-content ss-flex-1 ss-p-x-30" v-for="(shopItems, shopName, index) in processedValidList" :key="shopName">
			  <view class="ss-m-b-14 bg-white goods-box">
			    <view class="title-text ss-p-x-10 ss-p-t-20 ss-flex ss-col-center">
			      <!-- <label class="check-box ss-flex ss-col-center" @tap="onSelectSingle()">
			        <radio color="var(--ui-BG-Main)" style="transform: scale(0.8)" />
			      </label> -->
			      <text class="ss-m-l-10">{{ shopName }}</text>
			    </view>
			    <!-- 注意这里v-for的对象是shopItems -->
					
			    <view class="ss-r-10" v-for="(product, productIndex) in shopItems" :key="product.id">
					
			      <view class="ss-flex ss-col-center">
			        <label class="check-box ss-flex ss-col-center ss-p-l-10" @tap="onSelectSingle(product.id)">
			          <radio :checked="state.selectedIds.includes(product.id)" color="var(--ui-BG-Main)" style="transform: scale(0.8)" @tap.stop="onSelectSingle(product.id)" />
			        </label>
			        <s-goods-item :title="product.spu.name" :img="product.spu.picUrl || product.goods.image" :price="product.sku.price"
			          :skuText="product.sku.properties.length > 1 ? product.sku.properties.reduce((items2, items) => items2.valueName + ' ' + items.valueName) : product.sku.properties[0].valueName"
			          priceColor="#FF3000" :titleWidth="400">
			          <template v-if="!state.editMode" v-slot:tool>
			            <su-number-box :min="0" :max="product.sku.stock" :step="1" v-model="product.count" @change="onNumberChange($event, product)"></su-number-box>
			          </template>
			        </s-goods-item>
			      </view>
			    </view>
			  </view>
			</view>

			
			<!-- 底部 -->
			<su-fixed bottom :val="48" placeholder v-if="state.list.length > 0" :isInset="false">
				<view class="cart-footer ss-flex ss-col-center ss-row-between ss-p-x-30 border-bottom">
					<view class="footer-left ss-flex ss-col-center">
						<label class="check-box ss-flex ss-col-center ss-p-r-30" @tap="onSelectAll">
							<radio :checked="state.isAllSelected" color="var(--ui-BG-Main)"
								style="transform: scale(0.8)" @tap.stop="onSelectAll" />
							<view class="ss-m-l-8"> {{ $t('common.all') }} </view>
						</label>
						<text>{{ $t('common.total') }}：</text>
						<view class="text-price price-text">
							{{ fen2yuan(state.totalPriceSelected)}}
						</view>
					</view>
					<view class="footer-right">
						<button v-if="state.editMode" class="ss-reset-button ui-BG-Main-Gradient pay-btn ui-Shadow-Main"
							@tap="onDelete">
							{{ $t('common.delete') }}
						</button>
						<button v-else class="ss-reset-button ui-BG-Main-Gradient pay-btn ui-Shadow-Main"
							@tap="onConfirm">
							{{ $t('common.checkout') }}
							{{ state.selectedIds?.length ? `(${state.selectedIds.length})` : '' }}
						</button>
					</view>
				</view>
			</su-fixed>
		</view>
	</s-layout>
</template>

<script setup>
	import sheep from '@/sheep';
	import {
		computed,
		reactive,
		unref
	} from 'vue';
	import {
		fen2yuan
	} from '@/sheep/hooks/useGoods';
	const sys_navBar = sheep.$platform.navbar;
	const cart = sheep.$store('cart');

	const state = reactive({
		editMode: false,
		list: computed(() => cart.list),
		shopList: computed(() => cart.shopNameMap),
		skuList: computed(() => cart.shopSkuMap),
		selectedList: [],
		selectedIds: computed(() => cart.selectedIds),
		isAllSelected: computed(() => cart.isAllSelected),
		totalPriceSelected: computed(() => cart.totalPriceSelected),
	});
	// 处理后端返回来的数据
	const processedValidList = computed(() => {
	  // 初始化一个空对象，用于按店铺分组商品
	    const groups = {};
	    // 遍历validList，将每个商品分配到对应的店铺分组中
	    state.list.forEach(item => {
	      // 找到当前SKU所属的店铺ID
	      const shopId = Object.keys(state.skuList).find(key => state.skuList[key].includes(item.sku.id));
	      const shopName = state.shopList[shopId] || '未知店铺';
	      // 如果该店铺分组不存在，则初始化
	      if (!groups[shopName]) {
	        groups[shopName] = [];
	      }
	      // 将当前商品加入到对应店铺的分组中
	      groups[shopName].push(item);
	    });
	    return groups;
	});
	// 单选选中
	function onSelectSingle(id) {
		console.log('单选')
		cart.selectSingle(id);
	}
	// 全选
	function onSelectAll() {
		cart.selectAll(!state.isAllSelected);
	}

	// 结算
	function onConfirm() {
		let items = []
		let goods_list = [];
		state.selectedList = state.list.filter((item) => state.selectedIds.includes(item.id));
		state.selectedList.map((item) => {
			// console.log(item, '便利');
			// 此处前端做出修改
			items.push({
				skuId: item.sku.id,
				count: item.count,
				cartId: item.id,
			})
			goods_list.push({
				// goods_id: item.goods_id,
				goods_id: item.spu.id,
				// goods_num: item.goods_num,
				goods_num: item.count,
				// 商品价格id真没有
				// goods_sku_price_id: item.goods_sku_price_id,
			});
		});
		// return;
		if (goods_list.length === 0) {
			sheep.$helper.toast('请选择商品');
			return;
		}
		sheep.$router.go('/pages/order/confirm', {
			data: JSON.stringify({
				// order_type: 'goods',
				// goods_list,
				items,
				// from: 'cart',
				pointStatus: false,
				// 从购物车这里提交订单的 一定是实体商品和用人民币买的 所以可以直接写死
				deliveryType: 1,
				spuPayType:1,
				spuType:1,
			}),
		});
	}

	function onNumberChange(e, cartItem) {
		
		if (e === 0) {
			cart.delete(cartItem.id);
			return;
		}
		if (cartItem.goods_num === e) return;
		cartItem.goods_num = e;
		cart.update({
			goods_id: cartItem.id,
			goods_num: e,
			goods_sku_price_id: cartItem.goods_sku_price_id,
		});
	}
	async function onDelete() {
		cart.delete(state.selectedIds);
	}
</script>

<style lang="scss" scoped>
	:deep(.ui-fixed) {
		height: 72rpx;
	}
	.title-text {
		font-size: 30rpx;
		font-weight: bold;
		line-height: 42rpx;
	}
	.cart-box {
		width: 100%;

		.cart-header {
			height: 70rpx;
			background-color: #f6f6f6;
			width: 100%;
			position: fixed;
			left: 0;
			top: v-bind('sys_navBar') rpx;
			z-index: 1000;
			box-sizing: border-box;
		}

		.cart-footer {
			height: 100rpx;
			background-color: #fff;

			.pay-btn {
				width: 180rpx;
				height: 70rpx;
				font-size: 28rpx;
				line-height: 28rpx;
				font-weight: 500;
				border-radius: 40rpx;
			}
		}
		
		
		.cart-content {

			.goods-box {
				border-radius: 20rpx;
			}
		}

	}
</style>