<template>
  <div class="app-container">
  <div class="el-container-md">

    <div class="selection-toolbar">
      <el-checkbox :indeterminate="isIndeterminate" v-model="allChecked" @change="toggleSelectAll">
        {{ multipleSelection.length > 0 ? `已选 ${multipleSelection.length} 条` : '选中本页' }}
      </el-checkbox>
      <el-button  plain size="mini" @click="handleShelf">上架</el-button>
      <el-button  plain size="mini" @click="handleUnshelf">下架</el-button>
      <el-button  plain size="mini" @click="handleDeleteSelected">删除</el-button>
      <el-button  plain type="mini" icon="el-icon-plus" @click="handleAddLiveGoods">添加商品</el-button>
    </div>
    <el-table
      ref="goodTable"
      :data="goodsLiveList"
      style="width: 100%; "
      v-loading="loading"
      @selection-change="handleSelectionChange"
    >
      <el-table-column type="selection" width="55"></el-table-column>
      <!-- 题干列：显示试题的主要内容 -->
      <el-table-column
        prop="goodsId"
        label="商品id"
        show-overflow-tooltip
      ></el-table-column>

      <el-table-column
        label="商品图片"
      >
        <template slot-scope="scope">
          <img
            :src="scope.row.imgUrl"
            style="display: block; max-width: 100%; width: 100px; height: 100px"
          />
        </template>

      </el-table-column>

      <el-table-column
        prop="productName"
        label="商品名称"
      ></el-table-column>

      <el-table-column
        prop="price"
        label="价格"
      ></el-table-column>

      <el-table-column
        prop="stock"
        label="库存"
      ></el-table-column>

      <el-table-column
        prop="sales"
        label="销量"
      ></el-table-column>

      <el-table-column
        prop="isShow"
        label="显示状态"
      >
        <template slot-scope="scope">
          <el-switch
            v-model="scope.row.isShow"
            @change="handleSwitchClick(scope.row)"
            active-color="#13ce66"
            inactive-color="#ff4949">
          </el-switch>
        </template>
      </el-table-column>

      <el-table-column
        prop="status"
        label="上下架"
      >
        <template slot-scope="scope">
          <el-tag v-if="scope.row.status == 1">上架</el-tag>
          <el-tag type="info" v-if="scope.row.status == 0">下架</el-tag>
        </template>
      </el-table-column>

      <el-table-column
        prop="status"
        label="店铺上下架"
      >
        <template slot-scope="scope">
          <el-tag v-if="scope.row.fsStatus == 1">上架</el-tag>
          <el-tag type="info" v-if="scope.row.fsStatus == 0">下架</el-tag>
        </template>
      </el-table-column>

      <!-- 操作列：包含编辑和删除按钮 -->
      <el-table-column
        label="操作"
        width="180"
        fixed="right"
      >
        <template slot-scope="scope">
          <el-button
            type="text"
            size="small"
            style="color: #0066FF;"
            @click="handleGoodStock(scope.row)"
          >调整库存</el-button>
          <el-button
            type="text"
            size="small"
            style="color: #0066FF;"
            @click="handleGoodSale(scope.row)"
          >调整销量</el-button>
          <el-button
            type="text"
            size="small"
            style="color: #F56C6C;"
            @click="handleGoodDelete(scope.row)"
          >删除</el-button>
        </template>
      </el-table-column>
    </el-table>

    <!-- 分页组件：用于分页展示试题列表 -->
    <pagination
      v-show="goodsLiveTotal > 0"
      :total="goodsLiveTotal"
      :page.sync="goodsParams.pageNum"
      :limit.sync="goodsParams.pageSize"
      @pagination="getLiveGoodsList"
      style="margin-top: 20px;background-color: inherit;"
    />

    <!-- 添加商品弹窗 -->
    <el-dialog
      title="添加商品"
      :visible.sync="goodsDialogVisible"
      width="800px"
      :close-on-click-modal="false"
      :close-on-press-escape="false"
    >
      <div class="dialog-content">
        <div style="text-align: right; margin-bottom: 20px;">
          <el-input
            v-model="searchTitle"
            placeholder="请输入产品名称"
            style="width: 300px;"
            @input="handleGoodsSearch"
          ></el-input>
        </div>

        <el-table
          :data="goodsList"
          style="width: 100%"
          v-loading="goodsLoading"
          @selection-change="handleGoodsChange"
          @row-click="handleGoodsRowClick"
          row-key="id"
        >
          <el-table-column
            type="selection"
            width="55"
          >
          </el-table-column>
          <el-table-column
            prop="productName"
            label="产品"
            class-name="clickable-column"
          ></el-table-column>
          <el-table-column
            prop="price"
            label="价格"
            class-name="clickable-column"
          ></el-table-column>
          <el-table-column
            prop="stock"
            label="库存"
            class-name="clickable-column"
          ></el-table-column>
        </el-table>

        <pagination
          v-show="goodsTotal > 0"
          :total="goodsTotal"
          :page.sync="queryGoodParams.pageNum"
          :limit.sync="queryGoodParams.pageSize"
          @pagination="getStoreProductLists"
          style="margin-top: 20px;"
        />
      </div>
      <div slot="footer" class="dialog-footer" style="background-color: inherit;">
        <div style="display: flex; justify-content: space-between; align-items: center;">
          <span class="selected-count">当前已选择 <span style="color: #00BFFF; font-style: italic;">{{ selectedGoods.length }}</span> 商品</span>
          <div>
            <el-button @click="goodsDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="confirmAddGoods">确 定</el-button>
          </div>
        </div>
      </div>
    </el-dialog>
    <el-dialog
      title="调整库存"
      :visible.sync="stockDialogVisible"
      width="400px"
      :close-on-click-modal="false"
      :close-on-press-escape="false"
    >
      <el-form :model="stockForm" ref="stockForm" :rules="stockRules">
        <el-form-item label="调整后库存" prop="stock">
          <el-input-number
            v-model="stockForm.stock"
            :min="0"
            :max="999999"
            controls-position="right"
            style="width: 100%;"
          ></el-input-number>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="stockDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="confirmStockChange">确 定</el-button>
      </div>
    </el-dialog>

    <el-dialog
      title="调整销量"
      :visible.sync="salesDialogVisible"
      width="400px"
      :close-on-click-modal="false"
      :close-on-press-escape="false"
    >
      <el-form :model="salesForm" ref="salesForm" :rules="salesRules">
        <el-form-item label="调整后销量" prop="newSales">
          <el-input-number
            v-model="salesForm.sales"
            :min="0"
            :max="999999"
            controls-position="right"
            style="width: 100%;"
          ></el-input-number>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="salesDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="confirmSalesChange">确 定</el-button>
      </div>
    </el-dialog>

  </div>
  </div>
</template>

<script>
import {addLiveGoods, delLiveGoods, listLiveGoods, listStoreProduct, handleShelfOrUn, handleDeleteSelected,handleIsShowChange,updateGoodsStock,updateLiveGoods} from "@/api/live/liveGoods";

export default {
  data() {
    return {
      liveId: '',
      loading: true,
      searchTitle: '',
      queryGoodParams: {
        pageNum: 1,
        pageSize: 10,
        keywords: null,
      },
      goodsLiveList: [],
      goodsLiveTotal: 0,
      goodsParams: {
        pageNum: 1,
        pageSize: 10,
        liveId: null
      },
      goodsList: [],
      goodsTotal: 0,
      selectedGoods: [],
      goodsLoading: false,
      goodsDialogVisible: false,
      multipleSelection: [],
      allChecked: false,
      isIndeterminate: false,
      socket: null,
      stockDialogVisible: false,
      salesDialogVisible: false,
      stockForm: {
        goodsId: '',
        stock: 0
      },
      salesForm: {
        goodsId: '',
        sales: 0,
        productId: 0,
      },
      stockRules: {
        stock: [
          { required: true, message: '请输入库存数量', trigger: 'blur' },
          { type: 'number', min: 0, message: '库存数量不能小于0', trigger: 'blur' }
        ]
      },
      salesRules: {
        sales: [
          { required: true, message: '请输入销量数量', trigger: 'blur' },
          { type: 'number', min: 0, message: '库存数量不能小于0', trigger: 'blur' }
        ]
      }
    };
  },
  watch: {
    // 监听路由的 query 参数变化
    '$route.query': {
      handler(newQuery) {
        if (this.$route.params.liveId) {
          this.liveId = this.$route.params.liveId;
        }else {
          this.liveId = this.$route.query.liveId;
        }
        this.goodsParams.liveId = this.liveId
        if(this.liveId == null) {
          return;
        }
        this.getLiveGoodsList();
        this.socket = this.$store.state.liveWs[this.liveId]
      },
      // 初始化时立即执行一次
      immediate: true
    }
  },
  created() {
    // if (this.$route.params.liveId) {
    //   this.liveId = this.$route.params.liveId;
    // }else {
    //   this.liveId = this.$route.query.liveId;
    // }
    // this.goodsParams.liveId = this.liveId
  },
  methods: {
    handleSwitchClick(row) {
      // 1. 获取「即将切换到的目标状态」（当前状态取反）
      const targetStatus = row.isShow;
      const originalIsShow = !row.isShow
      const goodsList = [row.goodsId];
      if (this.socket == null) {
        this.$message.error("请从直播间开启展示状态！");

        this.$nextTick(() => {
          row.isShow = originalIsShow;
        });
        return;
      }
      handleIsShowChange({"goodsIds":goodsList,"isShow":targetStatus,"liveId":this.liveId}).then(res=>{
        if(res.code == 200){
          row.isShow = res.isShow
          if (res.msg == "目前仅支持单一物品展示") {
            this.$message.error(res.msg)
          }
          if (this.socket != null) {
            const msg = {
              cmd: 'goods',
              data: {"liveId":this.liveId,"goodsId":goodsList[0],"status":targetStatus ? 1 : 0}
            };
            this.socket.send(JSON.stringify(msg));
          } else {
            row.isShow = originalIsShow;
          }
        }
      }).catch(err => {
        // 网络错误时，同样恢复原始状态
        row.isShow = originalIsShow;
        // this.$set(row, 'isShow', originalIsShow); // 响应式修复
        console.error("状态切换失败：", err);
      });
    },
    handleShelf(){
      this.handleShelfOrUn(1)
    },
    handleUnshelf(){
      this.handleShelfOrUn(0)
    },
    handleShelfOrUn(type){
      if (this.multipleSelection.length > 0) {
        const goodsList = this.getSelectedList();
        handleShelfOrUn({"goodsIds":goodsList,"status":type,"liveId":this.liveId}).then(res=>{
          this.dealResult(res)
        })
      } else {
        this.$message.info("请选择下架商品！")
      }
    },
    handleDeleteSelected(){
      if (this.multipleSelection.length > 0) {
        const goodsList = this.getSelectedList();
        handleDeleteSelected({"goodsIds":goodsList,"liveId":this.liveId}).then(res=>{
          this.dealResult(res)
        })
      } else {
        this.$message.info("请选择被删除的商品！")
      }
    },
    dealResult(res){
      if (res.code == 200) {
        this.getLiveGoodsList();
        this.$refs.goodTable.clearSelection();
      } else {
        this.$message.error(res.msg);
      }
    },
    getSelectedList(){
      var goodsList = []
      this.multipleSelection.forEach(item => {
        goodsList.push(item.goodsId);
      })
      return goodsList;
    },
    // 全选或取消全选
    toggleSelectAll(val) {
      this.checked = val; // 更新 checkbox 的状态
      if (val) {
        // 如果 checkbox 被选中，则全选
        this.toggleSelection(this.goodsLiveList);
      } else {
        // 如果 checkbox 被取消选中，则取消全选
        this.toggleSelection();
      }
    },
    toggleSelection(rows) {
      if (rows && !this.isIndeterminate) {
        rows.forEach(row => {
          this.$refs.goodTable.toggleRowSelection(row);
        });
      } else {
        this.$refs.goodTable.clearSelection();
      }
    },
    // 多选框选中数据
    handleSelectionChange(val) {
      this.multipleSelection = val;
      // 根据选择项的数量更新 checkbox 的状态
      this.allChecked = val.length === this.goodsLiveList.length;
      this.isIndeterminate = val.length > 0 && val.length < this.goodsLiveList.length;
    },

    getLiveGoodsList() {
      this.loading = true
      listLiveGoods(this.goodsParams).then(response => {
        this.goodsLiveList = response.rows
        this.goodsLiveTotal = response.total
        this.loading = false
      })
    },
    handleAddLiveGoods(){
      this.goodsDialogVisible = true;
      this.getStoreProductLists()
    },
    handleGoodsSearch(){
      this.queryGoodParams.pageNum = 1
      this.queryGoodParams.keywords = this.searchTitle
      this.getStoreProductLists()
    },
    handleGoodsChange(goods) {
      this.selectedGoods = goods
    },
    confirmAddGoods(){
      if (this.selectedGoods.length === 0) {
        this.$message({
          message: '请选择要添加的商品',
          type: 'warning'
        })
        return
      }
      addLiveGoods({
        liveId: this.liveId,
        productsId: this.selectedGoods.map(item => item.productId).join(',')
      }).then(response => {
        if (response.code !== 200) {
          this.$message({
            message: response.msg,
            type: 'warning'
          });
          return;
        }
        this.goodsDialogVisible = false;
        this.getLiveGoodsList()
      })
    },
    handleGoodDelete(row){
      delLiveGoods(row.goodsId).then(response => {
        this.getLiveGoodsList()
      })
    },
    /** 处理行点击事件 */
    handleGoodsRowClick(row, column) {
      // 如果点击的是复选框列，不进行处理
      if (column.type === 'selection') {
        return
      }

      // 获取表格实例
      const table = this.$refs.goodsTable[0]
      if (!table) {
        return
      }

      // 判断当前行是否已经被选中
      const isSelected = this.selectedGoods.some(item => item.id === row.id)

      // 切换选中状态
      table.toggleRowSelection(row, !isSelected)
    },
    getStoreProductLists() {
      listStoreProduct(this.queryGoodParams).then(response => {
        this.goodsList = response.rows
        this.goodsTotal = response.total
        this.loading = false
      })
    },
    handleGoodStock(row){
      this.stockForm.goodsId = row.goodsId;
      this.stockForm.stock = row.stock;
      this.stockDialogVisible = true;
    },
    handleGoodSale(row){
      this.salesForm.goodsId = row.goodsId;
      this.salesForm.sales = row.sales;
      this.salesForm.productId = row.productId;
      this.salesDialogVisible = true;
    },
    // 添加确认修改库存方法
    confirmStockChange() {
      this.$refs.stockForm.validate((valid) => {
        if (valid) {
          updateGoodsStock({
            goodsId: this.stockForm.goodsId,
            stock: this.stockForm.stock
          }).then(response => {
            if (response.code === 200) {
              this.$message.success('库存修改成功');
              this.stockDialogVisible = false;
              this.getLiveGoodsList(); // 重新获取列表数据
            } else {
              this.$message.error(response.msg || '库存修改失败');
            }
          });
        }
      });
    },
    // 添加确认修改库存方法
    confirmSalesChange() {
      this.$refs.salesForm.validate((valid) => {
        if (valid) {
          updateLiveGoods({
            goodsId: this.salesForm.goodsId,
            sales: this.salesForm.sales,
            productId: this.salesForm.productId
          }).then(response => {
            if (response.code === 200) {
              this.$message.success('销量修改成功');
              this.salesDialogVisible = false;
              this.getLiveGoodsList(); // 重新获取列表数据
            } else {
              this.$message.error(response.msg || '销量修改失败');
            }
          });
        }
      });
    },

  }
};
</script >

<style lang="scss" scoped>

.selection-toolbar {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  padding-left: 10px;
  background-color: #f0f2f5;
}

.selection-toolbar .el-checkbox {
  margin-right: 10px;
  background-color: #f0f2f5;
}

/* 调整 checkbox 内部输入框的对齐 */
.selection-toolbar .el-checkbox .el-checkbox__inner {
  top: 8px; /* 根据实际需求调整 */
  background-color: #f0f2f5;
}
/* 1. 让组件根容器继承 app-main 背景 */
.goods-table-container {
  background-color: inherit; /* 继承父容器（app-main）的背景色 */
  padding: 20px; /* 可选：保留内边距，避免内容贴边 */
}

/* 2. 让 Element UI 容器/表格匹配背景（若其有默认白色背景） */
.el-container-md {
  background-color: inherit; /* 取消 el-container 的默认背景 */
}

.el-table {
  background-color: inherit; /* 取消 el-table 的默认白色背景（可选，若需要表格透明） */
  /* 若希望表格有背景，但与 app-main 协调：可改为 app-main 背景色的相近色 */
  /* background-color: #f8f9fa; */
}
::v-deep .app-main .goods-table-container {
  background-color: #f5f7fa; /* 与 app-main 全局背景统一 */
}
</style>
