<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="handleAddLiveCoupon">添加优惠券</el-button>
    </div>
    <el-table
      ref="couponTable"
      :data="couponLiveList"
      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="couponId"
        label="优惠券id"
        show-overflow-tooltip
      ></el-table-column>

      <el-table-column
        prop="title"
        label="优惠券名称"
      ></el-table-column>

      <el-table-column
        prop="couponPrice"
        label="优惠券价格"
      ></el-table-column>

      <el-table-column
        prop="useMinPrice"
        label="优惠券使用最低价格"
      ></el-table-column>

      <el-table-column
        prop="couponTime"
        label="优惠券有效时间"
      ></el-table-column>
      <el-table-column
        prop="productName"
        label="绑定直播商品"
      ></el-table-column>

      <el-table-column
        prop="isShow"
        label="显示状态"
      >
        <template slot-scope="scope">
            <el-switch
              v-model="scope.row.isShow == 1"
              @click.native.capture.prevent="handleSwitchClick(scope.row)"
              active-color="#13ce66"
              inactive-color="#ff4949">
            </el-switch>
        </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: #0fae11;"
            @click="handleCouponBind(scope.row)"
          >绑定商品</el-button>
          <el-button
            type="text"
            size="small"
            style="color: #F56C6C;"
            @click="handleCouponDelete(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="couponLiveTotal > 0"
      :total="couponLiveTotal"
      :page.sync="couponParams.pageNum"
      :limit.sync="couponParams.pageSize"
      @pagination="getLiveCouponList"
      style="margin-top: 20px;"
    />

    <!-- 添加优惠券弹窗 -->
    <el-dialog
      title="添加优惠券"
      :visible.sync="couponDialogVisible"
      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="请输入优惠券名称"
            style="width: 300px;"
            @input="handleCouponSearch"
          ></el-input>
        </div>

        <el-table
          :data="couponList"
          style="width: 100%"
          v-loading="couponLoading"
          @selection-change="handleCouponChange"
          @row-click="handleCouponRowClick"
          row-key="id"
        >
          <el-table-column
            type="selection"
            width="55"
          >
          </el-table-column>
          <el-table-column
            prop="title"
            label="优惠券名称"
            class-name="clickable-column"
          ></el-table-column>
          <el-table-column
            prop="couponPrice"
            label="优惠券价格"
            class-name="clickable-column"
          ></el-table-column>
          <el-table-column
            prop="useMinPrice"
            label="优惠券使用最低价格"
            class-name="clickable-column"
          ></el-table-column>
          <el-table-column
            prop="couponTime"
            label="优惠券有效时间"
            class-name="clickable-column"
          ></el-table-column>
        </el-table>

        <pagination
          v-show="couponTotal > 0"
          :total="couponTotal"
          :page.sync="queryCouponParams.pageNum"
          :limit.sync="queryCouponParams.pageSize"
          @pagination="getCouponLists"
          style="margin-top: 20px;"
        />
      </div>
      <div slot="footer" class="dialog-footer">
        <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;">{{ selectedCoupon.length }}</span> 优惠券</span>
          <div>
            <el-button @click="couponDialogVisible = false">取 消</el-button>
            <el-button type="primary" @click="confirmAddCoupon">确 定</el-button>
          </div>
        </div>
      </div>
    </el-dialog>


    <el-dialog
      title="绑定商品"
      :visible.sync="goodsDialogVisible"
      width="400px"
      :close-on-click-modal="false"
      :close-on-press-escape="false"
    >
      <el-form :model="goodsForm" ref="goodsForm" :rules="salesRules">
        <!-- 新增商品下拉选择 -->
        <el-form-item label="选择商品" prop="goodsId">
          <el-select
            v-model="goodsForm.goodsId"
            placeholder="请选择商品"
            filterable
            style="width: 100%;"
            @change="handleGoodsChange"
          >
          <el-option
            v-for="goods in goodsList"
            :key="goods.goodsId"
            :label="goods.productName"
            :value="goods.goodsId"
          ></el-option>
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="goodsDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="confirmGoodChange">确 定</el-button>
      </div>
    </el-dialog>
  </div>
  </div>
</template>

<script>
import {
  listLiveCoupon,
  addLiveCoupon,
  handleIsShowChange,
  handleDeleteSelected,
  delLiveCoupon,
  updateLiveCouponBind,
  listCoupon
} from "@/api/live/liveCoupon";
import { listLiveGoods} from "@/api/live/liveGoods";


export default {
  name: "LiveLiveCoupon",
  data() {
    return {
      liveId: '',
      loading: true,
      searchTitle: '',
      queryCouponParams: {
        pageNum: 1,
        pageSize: 10,
        couponName: '',
        liveId: null,
      },
      couponLiveList: [],
      couponLiveTotal: 0,
      couponParams: {
        pageNum: 1,
        pageSize: 10,
        liveId: null
      },
      couponList: [],
      couponTotal: 0,
      selectedCoupon: [],
      couponLoading: false,
      couponDialogVisible: false,
      multipleSelection: [],
      allChecked: false,
      isIndeterminate: false,
      socket: null,
      stockDialogVisible: false,
      goodsDialogVisible: false,
      goodsList: [],
      stockForm: {
        goodsId: '',
        stock: 0,
        productId: 0,
      },
      goodsForm: {
        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: {
     '$route.query': {
      handler(newQuery) {
        if (this.$route.params.liveId) {
          this.liveId = this.$route.params.liveId;
        }else {
          this.liveId = this.$route.query.liveId;
        }
        this.couponParams.liveId = this.liveId
        if(this.liveId == null) {
          return;
        }
        this.getLiveCouponList();
        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
    // this.getLiveGoodsList();
    // this.socket = this.$store.state.liveWs[this.liveId]
  },
  methods: {
    handleGoodsChange(row){

    },
    getLiveGoodsList() {
      listLiveGoods({"liveId":this.liveId,"pageNum":1,"pageSize":50}).then(response => {
        this.goodsList = response.rows
        this.goodsDialogVisible = true;
      })
    },
    handleRouteChange(to, from) {
      // 处理路由变化逻辑
      console.log('路由变化:', from.path, '->', to.path);
    },
    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 couponList = row.id;
      if (this.socket == null) {
        this.$message.error("请从直播间开启展示状态！");
        return;
      }
      handleIsShowChange({"couponId":couponList,"isShow":targetStatus,"liveId":this.liveId}).then(res=>{
        if(res.code == 200){
          row.isShow = targetStatus
          if (res.msg == "目前仅支持单一优惠券推送") {
            this.$message.error(res.msg)
            return;
          }
          const msg = {
            cmd: 'coupon',
            data: {"liveId":this.liveId,"couponIssueId":row.id,"status":targetStatus ? 1 : 0,"goodsId":row.goodsId,"couponName":row.title,
              "couponPrice":row.couponPrice,"useMinPrice":row.useMinPrice, "couponTime":row.couponTime}
          }
          this.socket.send(JSON.stringify(msg));

        }
      })
    },

    handleDeleteSelected(){
      if (this.multipleSelection.length > 0) {
        const goodsList = this.getSelectedList();
        handleDeleteSelected({"couponIds":goodsList,"liveId":this.liveId}).then(res=>{
          this.dealResult(res)
        })
      } else {
        this.$message.info("请选择被删除的优惠券！")
      }
    },
    dealResult(res){
      if (res.code == 200) {
        this.getLiveCouponList();
        this.$refs.couponTable.clearSelection();
      } else {
        this.$message.error(res.msg);
      }
    },
    getSelectedList(){
      var couponList = []
      this.multipleSelection.forEach(item => {
        couponList.push(item.id);
      })
      return couponList;
    },
    // 全选或取消全选
    toggleSelectAll(val) {
      this.checked = val; // 更新 checkbox 的状态
      if (val) {
        // 如果 checkbox 被选中，则全选
        this.toggleSelection(this.couponLiveList);
      } else {
        // 如果 checkbox 被取消选中，则取消全选
        this.toggleSelection();
      }
    },
    toggleSelection(rows) {
      if (rows && !this.isIndeterminate) {
        rows.forEach(row => {
          this.$refs.couponTable.toggleRowSelection(row);
        });
      } else {
        this.$refs.couponTable.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.couponLiveList.length;
      this.isIndeterminate = val.length > 0 && val.length < this.couponLiveList.length;
    },

    getLiveCouponList() {
      this.loading = true
      listLiveCoupon(this.couponParams).then(response => {
        this.couponLiveList = response.rows
        this.couponLiveTotal = response.total
        this.loading = false
      })
    },

    // // 添加确认修改库存方法
    // goodsDialogVisible() {
    //   this.$refs.couponForm.validate((valid) => {
    //     if (valid) {
    //       updateLiveCouponBind({
    //         goodsId: this.goodsForm.goodsId,
    //         couponId: this.goodsForm.sales,
    //         productId: this.goodsForm.productId
    //       }).then(response => {
    //         if (response.code === 200) {
    //           this.$message.success('销量修改成功');
    //           this.salesDialogVisible = false;
    //           this.getLiveCouponList(); // 重新获取列表数据
    //         } else {
    //           this.$message.error(response.msg || '销量修改失败');
    //         }
    //       });
    //     }
    //   });
    // },
    /** 处理行点击事件 */
    handleCouponRowClick(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.couponTable[0]
      if (!table) {
        return
      }

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

      // 切换选中状态
      table.toggleRowSelection(row, !isSelected)
    },
    getCouponLists() {
      this.queryCouponParams.liveId = this.liveId
      listCoupon(this.queryCouponParams).then(response => {
        this.couponList = response.rows
        this.couponTotal = response.total
        this.loading = false
      })
    },
    handleAddLiveCoupon(){
      this.couponDialogVisible = true;
      this.getCouponLists()
    },
    handleCouponSearch(){
      this.queryCouponParams.pageNum = 1
      this.queryCouponParams.couponName = this.searchTitle
      this.getCouponLists()
    },
    handleCouponChange(coupon) {
      this.selectedCoupon = coupon
    },
    confirmAddCoupon(){
      if (this.selectedCoupon.length === 0) {
        this.$message({
          message: '请选择要添加的优惠券',
          type: 'warning'
        })
        return
      }
      addLiveCoupon({
        liveId: this.liveId,
        couponIds: this.selectedCoupon.map(item => item.id).join(',')
      }).then(response => {
        if (response.code !== 200) {
          this.$message({
            message: response.msg,
            type: 'warning'
          });
          return;
        }
        this.couponDialogVisible = false;
        this.getLiveCouponList()
      })
    },
    handleCouponDelete(row){
      var couponList = []
      couponList.push(row.id);
      delLiveCoupon({"couponIds":couponList,"liveId":this.liveId}).then(response => {
        this.getLiveCouponList()
      })
    },
    handleCouponBind(row){
      this.goodsForm.couponId = row.id;
      this.goodsForm.goodsId = row.goodsId;
      this.getLiveGoodsList()
    },


    handleGoodStock(row){
      this.stockForm.goodsId = row.goodsId;
      this.stockForm.stock = row.stock;
      this.stockForm.productId = row.productId;
      this.stockDialogVisible = true;
    },
    // 绑定商品
    confirmGoodChange() {
      this.$refs.goodsForm.validate((valid) => {
        if (valid) {
          updateLiveCouponBind({
            goodsId: this.goodsForm.goodsId,
            couponId: this.goodsForm.couponId,
            liveId: this.liveId
          }).then(response => {
            if (response.code === 200) {
              this.$message.success('商品修改成功');
              this.goodsDialogVisible = false;
              this.getLiveCouponList(); // 重新获取列表数据
            } else {
              this.$message.error(response.msg || '商品修改失败');
            }
          });
        }
      });
    },

  }
};
</script>

<style scoped>
.selection-toolbar {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
  padding-left: 10px;
}

.selection-toolbar .el-checkbox {
  margin-right: 10px;
}

/* 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 */
}
</style>
