<template>
  <div>
    <el-card class="box-card" shadow="always">
      <el-form ref="queryForm" :model="queryParams" :inline="true">
        <el-form-item label="数据源名称" prop="sourceName">
          <el-input
            v-model="queryParams.sourceName"
            placeholder="请输入数据源名称"
            clearable
            size="small"
            @keyup.enter.native="handleQuery"
          />
        </el-form-item>
        <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 type="flex" justify="space-between">
        <el-col :span="12">
          <el-button-group>
            <el-button
              type="primary"
              icon="el-icon-plus"
              size="mini"
              @click="handleAdd"
            >新增</el-button>
            <el-button
              type="success"
              icon="el-icon-edit-outline"
              size="mini"
              :disabled="single"
              @click="handleEdit"
            >修改</el-button>
            <el-button
              type="info"
              icon="el-icon-view"
              size="mini"
              :disabled="single"
              @click="handleDetail"
            >详情</el-button>
            <el-button
              type="danger"
              icon="el-icon-delete"
              size="mini"
              :disabled="multiple"
              @click="handleBatchDelete"
            >删除</el-button>
            <el-button
              type="warning"
              icon="el-icon-refresh"
              size="mini"
              @click="handleCacheRefresh"
            >刷新缓存</el-button>
          </el-button-group>
        </el-col>
        <el-col :span="12">
          <div class="right-toolbar">
            <el-tooltip content="密度" effect="dark" placement="top">
              <el-dropdown trigger="click" @command="handleCommand">
                <el-button circle size="mini">
                  <svg-icon class-name="size-icon" icon-class="colum-height" />
                </el-button>
                <el-dropdown-menu slot="dropdown">
                  <el-dropdown-item command="medium">正常</el-dropdown-item>
                  <el-dropdown-item command="small">中等</el-dropdown-item>
                  <el-dropdown-item command="mini">紧凑</el-dropdown-item>
                </el-dropdown-menu>
              </el-dropdown>
            </el-tooltip>
            <el-tooltip content="刷新" effect="dark" placement="top">
              <el-button circle size="mini" @click="handleRefresh">
                <svg-icon class-name="size-icon" icon-class="shuaxin" />
              </el-button>
            </el-tooltip>
            <el-tooltip content="列设置" effect="dark" placement="top">
              <el-popover placement="bottom" width="100" trigger="click">
                <el-checkbox-group v-model="checkedTableColumns" @change="handleCheckedColsChange">
                  <el-checkbox
                    v-for="(item, index) in tableColumns"
                    :key="index"
                    :label="item.prop"
                  >{{ item.label }}</el-checkbox>
                </el-checkbox-group>
                <span slot="reference">
                  <el-button circle size="mini">
                    <svg-icon class-name="size-icon" icon-class="shezhi" />
                  </el-button>
                </span>
              </el-popover>
            </el-tooltip>
          </div>
        </el-col>
      </el-row>

      <el-table
        v-loading="loading"
        :data="dataSourceList"
        border
        tooltip-effect="dark"
        :size="tableSize"
        :height="tableHeight"
        style="width: 100%;margin: 15px 0;"
        @selection-change="handleSelectionChange"
      >
        <el-table-column type="selection" width="55" align="center" />
        <el-table-column label="序号" width="55" align="center">
          <template slot-scope="scope">
            <span>{{ scope.$index +1 }}</span>
          </template>
        </el-table-column>
        <template v-for="(item, index) in tableColumns">
          <el-table-column
            v-if="item.show"
            :key="index"
            :prop="item.prop"
            :label="item.label"
            :formatter="item.formatter"
            align="center"
            show-overflow-tooltip
          />
        </template>
        <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
          <template slot-scope="scope">
            <el-popover
              placement="left"
              trigger="click"
            >
              <el-button
                size="mini"
                type="text"
                icon="el-icon-edit-outline"
                @click="handleEdit(scope.row)"
              >修改</el-button>
              <el-button
                size="mini"
                type="text"
                icon="el-icon-view"
                @click="handleDetail(scope.row)"
              >详情</el-button>
              <el-button
                size="mini"
                type="text"
                icon="el-icon-delete"
                @click="handleDelete(scope.row)"
              >删除</el-button>
              <el-button slot="reference">操作</el-button>
            </el-popover>
          </template>
        </el-table-column>
      </el-table>

      <el-pagination
        :page-sizes="[10, 20, 50, 100]"
        layout="total, sizes, prev, pager, next, jumper"
        :current-page.sync="queryParams.pageNum"
        :page-size.sync="queryParams.pageSize"
        :total="total"
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
      />
    </el-card>
  </div>
</template>

<script>
import { pageDataSource, delDataSource, delDataSources, refreshMetadata } from '@/api/metadata/datasource'

export default {
  name: 'DataSourceList',
  data() {
    return {
      tableHeight: document.body.offsetHeight - 340 + 'px',
      // 展示切换
      showOptions: {
        data: {},
        showList: true,
        showAdd: false,
        showEdit: false,
        showDetail: 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,
      // 表格头
      tableColumns: [
        { prop: 'sourceName', label: '数据源名称', show: true },
        {
          prop: 'status',
          label: '状态',
          show: true,
          formatter: this.statusFormatter
        },
        { prop: 'createTime', label: '创建时间', show: true }
      ],
      // 默认选择中表格头
      checkedTableColumns: [],
      tableSize: 'medium',
      // 状态数据字典
      statusOptions: [],
      // 数据源表格数据
      dataSourceList: [],
      // 总数据条数
      total: 0,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 20,
        sourceName: ''
      }
    }
  },
  created() {
    this.getDicts('sys_common_status').then(response => {
      if (response.success) {
        this.statusOptions = response.data
      }
    })
    this.getList()
  },
  mounted() {
    this.initCols()
  },
  methods: {
    /** 查询数据源列表 */
    getList() {
      this.loading = true
      pageDataSource(this.queryParams).then(response => {
        this.loading = false
        if (response.success) {
          const { data } = response
          this.dataSourceList = data.data
          this.total = data.total
        }
      })
    },
    initCols() {
      this.checkedTableColumns = this.tableColumns.map(col => col.prop)
    },
    handleCheckedColsChange(val) {
      this.tableColumns.forEach(col => {
        if (!this.checkedTableColumns.includes(col.prop)) {
          col.show = false
        } else {
          col.show = true
        }
      })
    },
    handleCommand(command) {
      this.tableSize = command
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1
      this.getList()
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.$refs['queryForm'].resetFields()
      this.handleQuery()
    },
    /** 刷新列表 */
    handleRefresh() {
      this.getList()
    },
    /** 多选框选中数据 */
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id)
      this.single = selection.length !== 1
      this.multiple = !selection.length
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.showOptions.data = {}
      this.showOptions.showList = false
      this.showOptions.showAdd = true
      this.showOptions.showEdit = false
      this.showOptions.showDetail = false
      this.$emit('showCard', this.showOptions)
    },
    /** 修改按钮操作 */
    handleEdit(row) {
      this.showOptions.data.id = row.id || this.ids[0]
      this.showOptions.showList = false
      this.showOptions.showAdd = false
      this.showOptions.showEdit = true
      this.showOptions.showDetail = false
      this.$emit('showCard', this.showOptions)
    },
    /** 详情按钮操作 */
    handleDetail(row) {
      this.showOptions.data.id = row.id || this.ids[0]
      this.showOptions.showList = false
      this.showOptions.showAdd = false
      this.showOptions.showEdit = false
      this.showOptions.showDetail = true
      this.$emit('showCard', this.showOptions)
    },
    /** 刷新缓存 */
    handleCacheRefresh() {
      refreshMetadata().then(response => {
        if (response.success) {
          this.$message.success('刷新缓存成功')
        } else {
          this.$message.error('刷新缓存失败')
        }
      })
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      this.$confirm('选中数据将被永久删除, 是否继续？', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {
        delDataSource(row.id)
        this.$message.success('删除成功')
        this.getList()
      }).catch(() => {
      })
    },
    /** 批量删除按钮操作 */
    handleBatchDelete() {
      if (!this.ids.length) {
        this.$message({
          message: '请先选择需要操作的数据',
          type: 'warning'
        })
      }
      this.$message.warning('不支持批量删除')
    },
    handleSizeChange(val) {
      console.log(`每页 ${val} 条`)
      this.queryParams.pageNum = 1
      this.queryParams.pageSize = val
      this.getList()
    },
    handleCurrentChange(val) {
      console.log(`当前页: ${val}`)
      this.queryParams.pageNum = val
      this.getList()
    },
    statusFormatter(row, column, cellValue, index) {
      const dictLabel = this.selectDictLabel(this.statusOptions, cellValue)
      if (cellValue === '1') {
        return <el-tag type='success'>{dictLabel}</el-tag>
      } else {
        return <el-tag type='warning'>{dictLabel}</el-tag>
      }
    }
  }
}
</script>

<style lang="scss" scoped>
.right-toolbar {
  float: right;
}
</style>
