<template>
  <div class="page">
    <el-form
      :inline="true"
      class="top-search"
    >
      <el-form-item>
        <el-input
          v-model="query.activityName"
          placeholder="请输入活码名称"
        ></el-input>
      </el-form-item>

      <el-form-item>
        <el-input
          v-model="query.createBy"
          placeholder="请输入创建人"
        ></el-input>
      </el-form-item>

      <el-form-item>
        <el-date-picker
          v-model="searchDate"
          format="yyyy-MM-dd"
          value-format="yyyyMMdd"
          type="daterange"
          range-separator="-"
          start-placeholder="开始日期"
          end-placeholder="结束日期"
        ></el-date-picker>
      </el-form-item>

      <el-form-item
        class="search-button-area"
      >
        <el-button type="primary" @click="handleSearch">查询</el-button>
        <el-button @click="handleClear">清空</el-button>
      </el-form-item>
    </el-form>

    <div class="mid-action">
      <div>
        <el-button
          type="primary"
          @click="$router.push('/drainageCode/groupAdd')"
        >
          新建群活码
        </el-button>
      </div>

      <div>
        <el-button
          :disabled="multiGroupCode.length === 0"
          @click="handleBulkDownload"
        >
          批量下载
        </el-button>

        <el-button
          :disabled="multiGroupCode.length === 0"
          @click="handleBulkRemove"
        >
          批量删除
        </el-button>
      </div>
    </div>

    <el-table
      :data="groupCodes"
      v-loading="loading"
      @selection-change="handleSelectionChange"
    >
      <el-table-column
        type="selection"
        width="55"
        align="center"
      ></el-table-column>

      <el-table-column
        prop="activityName"
        label="活码名称"
        align="center"
      ></el-table-column>

      <el-table-column
        prop="activityDesc"
        label="活码描述"
        align="center"
        width="160"
      >
        <template #default="{ row }">
          <el-popover
            placement="bottom"
            width="200"
            trigger="hover"
            :content="row.activityDesc"
          >
            <div slot="reference" class="table-desc overflow-ellipsis">{{ row.activityDesc }}</div>
          </el-popover>
        </template>
      </el-table-column>

      <el-table-column
        prop="codeUrl"
        label="活码样式"
        align="center"
        width="130"
      >
        <template #default="{ row }">
          <el-popover
            placement="bottom"
            trigger="hover"
          >
            <el-image
              slot="reference"
              :src="row.codeUrl"
              class="code-image--small"
            ></el-image>
            <el-image
              :src="row.codeUrl"
              class="code-image"
            >
            </el-image>
          </el-popover>
        </template>
      </el-table-column>

      <el-table-column
        label="实际群码总数"
        align="center"
      >
        <template #default="{ row }">
          <el-button
            type="text"
            @click="handleRealCodeDialogOpen(row.id, -1)"
          >
            {{ (row.actualList && row.actualList.length) || 0 }}
          </el-button>
        </template>
      </el-table-column>

      <el-table-column
        prop="availableCodes"
        label="可用实际群码数"
        align="center"
      >
        <template #default="{ row }">
          <el-popover
            v-if="row.aboutToExpireCodes > 0"
            placement="bottom"
            width="200"
            trigger="hover"
            :content="'有' + row.aboutToExpireCodes + '个实际群码即将过期。'"
          >
            <i slot="reference" class="el-icon-warning expire-icon"></i>
          </el-popover>

          <el-button
            type="text"
            @click="handleRealCodeDialogOpen(row.id, 0)"
          >
            {{ row.availableCodes }}
          </el-button>
        </template>
      </el-table-column>

      <el-table-column
        prop="totalScanTimes"
        label="扫码总次数"
        align="center"
      ></el-table-column>

      <el-table-column
        prop="createBy"
        label="创建人"
        align="center"
      ></el-table-column>

      <el-table-column
        prop="createTime"
        label="创建时间"
        align="center"
      ></el-table-column>

      <el-table-column
        label="操作"
        align="center"
      >
        <template #default="{ row }">
          <el-button
            type="text"
            size="mini"
            @click="$router.push({ path: '/drainageCode/customerGroupDetail', query: { groupCodeId: row.id } })"
          >
            编辑
          </el-button>

          <el-button
            type="text"
            size="mini"
            @click="handleDownload(row.id, row.activityName)"
          >
            下载
          </el-button>

          <el-button
            type="text"
            size="mini"
            class="copy-btn"
            :data-clipboard-text="row.codeUrl"
          >
            复制
          </el-button>

          <el-button
            type="text"
            size="mini"
            @click="handleRemove(row.id)"
          >
            删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total > 0"
      :total="total"
      :page.sync="query.pageNum"
      :limit.sync="query.pageSize"
      @pagination="getGroupCodes"
    />

    <el-dialog
      v-if="realCodeDialog"
      title="实际群码"
      :visible.sync="realCodeDialog"
      append-to-body
      width="70%"
    >
      <RealCode ref="realCode" :groupCodeId="openGroupCodeId" :status="openGroupCodeStatus"></RealCode>
    </el-dialog>
  </div>
</template>

<script>
import RealCode from './realCode'
import { getList, remove, downloadBatch, download } from '@/api/drainageCode/group'
import ClipboardJS from 'clipboard'

export default {
  components: {
    RealCode
  },

  data () {
    return {
      // 搜索数据
      query: {
        pageNum: 1,
        pageSize: 10,
        activityName: '',
        createBy: '',
        beginTime: '',
        endTime: ''
      },
      // 加载状态
      loading: false,
      // 查询日期
      searchDate: '',
      // 多选数据
      multiGroupCode: [],
      // 群活码数据
      groupCodes: [],
      // 总数据量
      total: 0,
      // 实际群码总数dialog
      realCodeDialog: false,
      // 打开实际群码关联的群活码ID
      openGroupCodeId: null,
      // 打开实际群码的检索状态
      openGroupCodeStatus: -1,
      // 拷贝对象
      clipboard: null
    }
  },

  methods: {
    // 获取活码数据
    getGroupCodes () {
      const params = Object.assign({}, this.query)

      this.loading = true

      getList(params).then((res) => {
        if (res.code === 200) {
          this.groupCodes = res.rows
          this.total = parseInt(res.total)
        }
        this.loading = false
      }).catch(() => {
        this.loading = false
      })
    },

    // 查询
    handleSearch () {
      this.getGroupCodes()
    },

    // 搜索栏清空
    handleClear () {
      this.searchDate = ''

      this.query = {
        activityName: '',
        createBy: '',
        beginTime: '',
        endTime: ''
      }

      this.getGroupCodes()
    },

    // 批量下载
    handleBulkDownload () {
      const ids = this.multiGroupCode.map(group => group.id)

      this.$confirm('是否确认下载所有图片吗?', '警告', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      })
        .then(() => {
          return downloadBatch(ids + '')
        })
        .then((res) => {
          if (res != null) {
            let blob = new Blob([res], { type: 'application/zip' })
            let url = window.URL.createObjectURL(blob)
            const link = document.createElement('a') // 创建a标签
            link.href = url
            link.download = '批量群活码.zip' // 重命名文件
            link.click()
            URL.revokeObjectURL(url) // 释放内存
          }
        })
        .catch(function() {})
    },

    // 批量删除
    handleBulkRemove () {
      this.$confirm('确认删除当前群活码?删除操作无法撤销，请谨慎操作。', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      }).then(() => {
        const ids = this.multiGroupCode.map(group => group.id)

        remove(ids + '').then((res) => {
          if (res.code === 200) {
            this.getGroupCodes()
          } else {}
        })
      }).catch(() => {})
    },

    // 下载
    handleDownload (codeId, activityName) {
      const name = activityName + '.png'

      download(codeId).then((res) => {
        if (res != null) {
          let blob = new Blob([res], { type: 'application/zip' })
          let url = window.URL.createObjectURL(blob)
          const link = document.createElement('a') // 创建a标签
          link.href = url
          link.download = name // 重命名文件
          link.click()
          URL.revokeObjectURL(url) // 释放内存
        }
      })
    },

    // 删除
    handleRemove (codeId) {
      this.$confirm('确认删除当前群活码?删除操作无法撤销，请谨慎操作。', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning',
      }).then(() => {
        remove(codeId).then((res) => {
          if (res.code === 200) {
            this.getGroupCodes()
          } else {}
        })
      }).catch(() => {})
    },

    // 处理多选
    handleSelectionChange (val) {
      this.multiGroupCode = val
    },
    
    // 打开实际群码窗口
    handleRealCodeDialogOpen (groupCodeId, status) {
      this.openGroupCodeId = groupCodeId
      this.openGroupCodeStatus = status
      this.realCodeDialog = true
    }
  },

  watch: {
    searchDate (dateRange) {
      if (!dateRange || dateRange.length !== 2) {
        this.query.beginTime = ''
        this.query.endTime = ''
      } else {
        [ this.query.beginTime, this.query.endTime ] = dateRange
      }
    },

    // 如果实际群码弹出框关闭,刷新数据
    realCodeDialog (val) {
      if (val === false) this.getGroupCodes()
    }
  },

  mounted() {
    this.clipboard = new ClipboardJS('.copy-btn')

    this.clipboard.on('success', (e) => {
      this.$notify({
        title: '成功',
        message: '链接已复制到剪切板，可粘贴。',
        type: 'success',
      })
    })

    this.clipboard.on('error', (e) => {
      this.$message.error('链接复制失败')
    })
  },

  created () {
    this.getGroupCodes()
  },

  destroyed () {
    this.clipboard.destroy()
  },
}
</script>

<style scoped lang="scss">
  .overflow-ellipsis {
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .table-desc {
    max-width: 150px;
  }

  .code-image {
    width: 200px;
    height: 200px;
  }

  .code-image--small {
    width: 50px;
    height: 50px;
  }

  .expire-icon {
    color: red;
  }

  .mid-action {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 10px 0;
  }
</style>
