<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" size="small" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
            type="primary"
            plain
            icon="el-icon-plus"
            size="mini"
            @click="handleAdd"
            v-hasPermi="['xq:banner:add']"
        >新增
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="success"
            plain
            icon="el-icon-edit"
            size="mini"
            :disabled="single"
            @click="handleUpdate"
            v-hasPermi="['xq:banner:edit']"
        >修改
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
            type="danger"
            plain
            icon="el-icon-delete"
            size="mini"
            :disabled="multiple"
            @click="handleDelete"
            v-hasPermi="['xq:banner:remove']"
        >删除
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="bannerList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="轮播" align="center" prop="banner">
        <template v-slot="scope">
          <image-preview :src="scope.row.banner" :height="75" :width="120"/>
        </template>
      </el-table-column>
      <el-table-column label="状态" align="center" prop="enableStatus">
        <template v-slot="scope">
          <cai-dict-tag :options="enableStatusList" :value="scope.row.enableStatus"/>
        </template>
      </el-table-column>
      <el-table-column label="排序" align="center" prop="sort"/>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template v-slot="scope">
          <el-button
              size="mini"
              type="text"
              icon="el-icon-edit"
              @click="handleUpdate(scope.row)"
              v-hasPermi="['xq:banner:edit']"
          >修改
          </el-button>
          <el-button
              size="mini"
              type="text"
              icon="el-icon-delete"
              @click="handleDelete(scope.row)"
              v-hasPermi="['xq:banner:remove']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
        v-show="total>0"
        :total="total"
        :page.sync="queryParams.pageNum"
        :limit.sync="queryParams.pageSize"
        @pagination="getList"
    />
    <banner-add-update-dialog v-if="bannerAddUpdateDialogVisible" ref="bannerAddUpdateDialog" @refreshDataList="getList"/>
  </div>
</template>

<script>
import { delBanner, listBanner } from '@/api/xq/banner'
import { enableStatusList } from '@/constant/statusMap'
import BannerAddUpdateDialog from '@/views/xq/banner/banner-add-update-dialog.vue'

export default {
  name: 'Banner',
  components: { BannerAddUpdateDialog },
  data() {
    return {
      enableStatusList,
      bannerAddUpdateDialogVisible: false,
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非单个禁用
      single: true,
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 轮播图表格数据
      bannerList: [],
      // 弹出层标题
      title: '',
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        banner: undefined,
        enableStatus: undefined
      }
    }
  },
  created() {
    this.getList()
  },
  methods: {
    /** 查询轮播图列表 */
    getList() {
      this.loading = true
      listBanner(this.queryParams).then(response => {
        this.bannerList = response.rows
        this.total = response.total
        this.loading = false
      })
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm('queryForm')
      this.handleQuery()
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.bannerAddUpdateDialogVisible = true
      this.$nextTick(() => {
        this.$refs.bannerAddUpdateDialog.init()
      })
    },
    /** 修改按钮操作 */
    handleUpdate(row) {
      this.bannerAddUpdateDialogVisible = true
      this.$nextTick(() => {
        this.$refs.bannerAddUpdateDialog.init(row.id)
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids
      this.$modal.confirm('是否确认删除轮播图编号为"' + ids + '"的数据项？').then(() => {
        this.loading = true
        return delBanner(ids)
      }).then(() => {
        this.loading = false
        this.getList()
        this.$modal.msgSuccess('删除成功')
      }).catch(() => {
      }).finally(() => {
        this.loading = false
      })
    }
  }
}
</script>
