<!--设备列表-->
<template>
  <div class="app-container">
    <!--筛选条件-->
    <div class="search-div">
      <div class="search-left">
        <el-form ref="selectForm" :inline="true" :model="listQuery" class="form-container">
          <el-row>
            <el-col :span="4">
              <el-form-item class="selectForm-container-item">
                <el-input v-model.trim="listQuery.keywords" placeholder="设备编号/设备名称" clearable />
              </el-form-item>
            </el-col>
            <el-col :span="4">
              <el-form-item class="selectForm-container-item">
                <el-select v-model="listQuery.type" placeholder="设备类型" clearable>
                  <el-option v-for="item in typeList" :key="item.value" :label="item.name" :value="item.value"/>
                </el-select>
              </el-form-item>
            </el-col>
            <el-col :span="3">
              <el-form-item class="selectForm-container-item">
                <el-select v-model="listQuery.onlineStatus" placeholder="在线状态" filterable clearable>
                  <el-option v-for="item in statusList" :key="item.value" :label="item.name" :value="item.value"/>
                </el-select>
              </el-form-item>
            </el-col>
            <el-col :span="8">
              <el-form-item class="selectForm-container-item">
                <el-date-picker
                  v-model="timeRange"
                  type="daterange"
                  range-separator="至"
                  start-placeholder="开始日期"
                  end-placeholder="结束日期" />
              </el-form-item>
            </el-col>

            <el-col :span="4" class="search-right">
              <el-button class="filter-item" type="primary" icon="el-icon-search" @click="search">搜索</el-button>
            </el-col>
          </el-row>
        </el-form>
      </div>
    </div>
    <!--查询结果Table显示-->
    <div>
      <el-row class="table-title">
        <el-col :span="6"><div class="title-header"><i class="el-icon-menu"/>数据列表</div></el-col>
        <el-col :span="12" :offset="6" class="edit_btns">
          <el-button class="edit_btn" size="small">导出</el-button>
        </el-col>
      </el-row>
      <el-table v-loading="listLoading" :data="list" class="table" row-class-name="small-row-class" border @selection-change="handleSelectionChange">
        <!--拥有删除权限则显示复选框-->
        <el-table-column v-if="hasPerm('/lamp/delete')" align="center" type="selection" width="55"/>
        <!--序号列-->
        <el-table-column :index="indexMethod" align="center" type="index" label="#" width="55"/>
        <!--内容列-->
        <el-table-column v-for="column in columns" :key="column.value" :label="column.text" :width="column.width" :align="column.align" show-overflow-tooltip>
          <template slot-scope="scope">
            <span :class="column.class">{{ scope.row[column.value] }}</span>
          </template>
        </el-table-column>
        <!--操作列-->
        <el-table-column label="操作" align="center" width="160">
          <template slot-scope="scope">
            <el-button type="text" size="small" @click="detail(scope.row)">详情</el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <!--分页-->
    <div class="pagination-container">
      <el-pagination
        v-show="total>listQuery.limit"
        :current-page="listQuery.offset"
        :page-sizes="[20,30,50]"
        :page-size="listQuery.limit"
        :total="total"
        align="center"
        layout="total, sizes, prev, pager, next"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"/>
    </div>

    <device-detail ref="devDetail" />
  </div>
</template>

<script>
import { getDeviceList } from '@/api/device'
import { getDeviceType } from '@/api/allDict'
import { formatToString } from '@/utils/calendarUtil'
import DeviceDetail from '@/views/deviceManage/deviceDetail'

export default {
  name: 'DeviceList',
  components: { DeviceDetail },
  data() {
    return {
      listQuery: {
        keywords: '',
        type: '',
        onlineStatus: '',
        beginDate: '',
        endDate: '',
        areaType: '', // 区域类别
        offset: 1,
        limit: 20,
        sort: '',
        order: ''
      }, // 筛选条件
      columns: [
        {
          text: '设备编号',
          value: 'devcode',
          align: 'center'
        },
        {
          text: '设备名称',
          value: 'name',
          align: 'center'
        },
        {
          text: '设备类型',
          value: 'typeName',
          align: 'center'
        },
        {
          text: '在线状态',
          value: 'onlineStatusName',
          align: 'center'
        },
        {
          text: '安装位置',
          value: 'position',
          align: 'center'
        },
        {
          text: '安装日期',
          value: 'installDate',
          align: 'center'
        }
      ], // 显示列
      list: [], // 列表数据
      total: 0, // 数据总数
      typeList: [], // 设备类型列表
      timeRange: [],
      multipleSelection: [], // 多选选中项
      statusList: [{ value: '1', name: '在线' }, { value: '0', name: '离线' }],
      listLoading: false, // 加载动画
      fullscreenLoading: false, // 全屏加载动画
      dialogFormVisible: false
    }
  },
  watch: {
    timeRange: function(newV) {
      if (newV) {
        this.listQuery.beginDate = formatToString(newV[0], 'SECOND')
        this.listQuery.endDate = formatToString(newV[1], 'SECOND')
      } else {
        this.listQuery.beginDate = ''
        this.listQuery.endDate = ''
      }
      this.fetchData()
    }
  },
  activated() {
    if (this.$router.query && this.$router.query.areaType) {
      const areaType = this.$route.query.areaType
      console.log(areaType)
      this.listQuery.areaType = areaType
    }
    this.fetchData()// 获取数据
  },
  created() {
    this.fetchDeviceType()// 获取设备类别
  },
  methods: {
    // 检查选择情况
    checkSelection() {
      if (this.multipleSelection.length === 0) {
        return false
      } else {
        return true
      }
    },
    detail(row) {
      this.dialogFormVisible = true
      this.$refs.devDetail.initDialog('detail', this.dialogFormVisible, row)
    },
    // 查询数据
    search() {
      this.fetchData(false)
    },
    // 获取设备列表
    fetchData(isNowPage = true) {
      this.listLoading = true
      if (!isNowPage) { // 是否显示当前页，否则跳转第一页
        this.listQuery.offset = 1
      }
      getDeviceList(this.listQuery).then(response => {
        if (response.code === 200) {
          this.list = response.data.rows
          this.total = parseInt(response.data.total)
        } else {
          this.$message.error(response.message)
        }
        this.listLoading = false
      })
    },
    fetchDeviceType() {
      getDeviceType().then(response => {
        if (response.code === 200) {
          this.typeList = response.data
        }
      })
    },
    indexMethod(index) {
      return this.listQuery.limit * (this.listQuery.offset - 1) + index + 1
    },
    // 改变页容量
    handleSizeChange(val) {
      this.listQuery.limit = val
      this.fetchData()
    },
    // 改变当前页
    handleCurrentChange(val) {
      this.listQuery.offset = val
      this.fetchData()
    },
    // 多选触发方法
    handleSelectionChange(val) {
      this.multipleSelection = val
    }
  }
}
</script>

<style rel="stylesheet/scss" lang="scss" scoped>
  $tableTitleHeight:46px;
  .app-container{
    margin-bottom:20px
  }
  .table{
    margin-bottom: 20px;
  }
  .pagination-container{
    margin-bottom: 50px;
  }
  .table-title{
    background-color:rgba(243, 243, 243, 1);
    height: $tableTitleHeight;
    .title-header{
      line-height:$tableTitleHeight;
      color: #606266;
      font-size: 15px;
      i{
        margin-left: 5px;
        margin-right: 5px;
      }
    }
  }
  .edit_btns{
    .edit_btn{
      float:right;
      margin:7px 3px;//为了需要居中显示margin-top和bottom要用$tableTitleHeight减去按钮原高度除以2
    }
  }
</style>