<template>
  <div class="app-container calendar-list-container">
    <div class="filter-container">
      <el-input @keyup.enter.native="handleFilter" style="width: 200px;" class="filter-item" placeholder="标题" v-model="listQuery.title">
      </el-input>

      <el-select clearable style="width: 90px" class="filter-item" v-model="listQuery.importance" placeholder="重要性">
        <el-option v-for="item in importanceOptions" :key="item" :label="item" :value="item">
        </el-option>
      </el-select>

      <el-select clearable class="filter-item" style="width: 130px" v-model="listQuery.type" placeholder="类型">
        <el-option v-for="item in  calendarTypeOptions" :key="item.key" :label="item.display_name+'('+item.key+')'" :value="item.key">
        </el-option>
      </el-select>

      <el-select @change='handleFilter' style="width: 120px" class="filter-item" v-model="listQuery.sort" placeholder="排序">
        <el-option v-for="item in sortOptions" :key="item.key" :label="item.label" :value="item.key">
        </el-option>
      </el-select>

      <el-button class="filter-item" type="primary" v-waves icon="search" @click="handleFilter">搜索</el-button>
      <el-button class="filter-item" style="margin-left: 10px;" @click="handleCreate" type="primary" icon="edit">添加</el-button>
      <el-button class="filter-item" type="primary" icon="document" @click="handleDownload">导出</el-button>
      <el-checkbox class="filter-item" @change='tableKey=tableKey+1' v-model="showAuditor">显示审核人</el-checkbox>
    </div>

    <el-table :key='tableKey' :data="list" v-loading.body="listLoading" border fit highlight-current-row style="width: 100%">

      <el-table-column align="center" label="序号" width="65">
        <template scope="scope">
          <span>{{scope.row.id}}</span>
        </template>
      </el-table-column>

      <el-table-column width="180px" align="center" label="时间">
        <template scope="scope">
          <span>{{scope.row.timestamp | parseTime('{y}-{m}-{d} {h}:{i}')}}</span>
        </template>
      </el-table-column>

      <el-table-column min-width="300px" label="标题">
        <template scope="scope">
          <span class="link-type" @click="handleUpdate(scope.row)">{{scope.row.title}}</span>
          <el-tag>{{scope.row.type | typeFilter}}</el-tag>
        </template>
      </el-table-column>

      <el-table-column width="110px" align="center" label="作者">
        <template scope="scope">
          <span>{{scope.row.author}}</span>
        </template>
      </el-table-column>

      <el-table-column width="110px" v-if='showAuditor' align="center" label="审核人">
        <template scope="scope">
          <span style='color:red;'>{{scope.row.auditor}}</span>
        </template>
      </el-table-column>

      <el-table-column width="80px" label="重要性">
        <template scope="scope">
          <icon-svg v-for="n in +scope.row.importance" icon-class="wujiaoxing" class="meta-item__icon" :key="n" ></icon-svg>
        </template>
      </el-table-column>

      <el-table-column align="center" label="阅读数" width="95">
        <template scope="scope">
          <span class="link-type" @click='handleFetchPv(scope.row.pageviews)'>{{scope.row.pageviews}}</span>
        </template>
      </el-table-column>

      <el-table-column class-name="status-col" label="状态" width="90">
        <template scope="scope">
          <el-tag :type="scope.row.status | statusFilter">{{scope.row.status}}</el-tag>
        </template>
      </el-table-column>

      <el-table-column align="center" label="操作" width="150">
        <template scope="scope">
          <el-button v-if="scope.row.status!='published'" size="small" type="success" @click="handleModifyStatus(scope.row,'published')">发布
          </el-button>
          <el-button v-if="scope.row.status!='draft'" size="small" @click="handleModifyStatus(scope.row,'draft')">草稿
          </el-button>
          <el-button v-if="scope.row.status!='deleted'" size="small" type="danger" @click="handleModifyStatus(scope.row,'deleted')">删除
          </el-button>
        </template>
      </el-table-column>

    </el-table>

    <div v-show="!listLoading" class="pagination-container">
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page.sync="listQuery.page"
        :page-sizes="[10,20,30, 50]" :page-size="listQuery.limit" layout="total, sizes, prev, pager, next, jumper" :total="total">
      </el-pagination>
    </div>

    <el-dialog :title="textMap[dialogStatus]" :visible.sync="dialogFormVisible">
      <el-form class="small-space" :model="temp" label-position="left" label-width="70px" style='width: 400px; margin-left:50px;'>
        <el-form-item label="类型">
          <el-select class="filter-item" v-model="temp.type" placeholder="请选择">
            <el-option v-for="item in  calendarTypeOptions" :key="item.key" :label="item.display_name" :value="item.key">
            </el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="状态">
          <el-select class="filter-item" v-model="temp.status" placeholder="请选择">
            <el-option v-for="item in  statusOptions" :key="item" :label="item" :value="item">
            </el-option>
          </el-select>
        </el-form-item>

        <el-form-item label="时间">
          <el-date-picker v-model="temp.timestamp" type="datetime" placeholder="选择日期时间">
          </el-date-picker>
        </el-form-item>

        <el-form-item label="标题">
          <el-input v-model="temp.title"></el-input>
        </el-form-item>

        <el-form-item label="重要性">
          <el-rate style="margin-top:8px;" v-model="temp.importance" :colors="['#99A9BF', '#F7BA2A', '#FF9900']"></el-rate>
        </el-form-item>

        <el-form-item label="点评">
          <el-input type="textarea" :autosize="{ minRows: 2, maxRows: 4}" placeholder="请输入内容" v-model="temp.remark">
          </el-input>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click="dialogFormVisible = false">取 消</el-button>
        <el-button v-if="dialogStatus=='create'" type="primary" @click="create">确 定</el-button>
        <el-button v-else type="primary" @click="update">确 定</el-button>
      </div>
    </el-dialog>

    <el-dialog title="阅读数统计" :visible.sync="dialogPvVisible" size="small">
      <el-table :data="pvData" border fit highlight-current-row style="width: 100%">
        <el-table-column prop="key" label="渠道"> </el-table-column>
        <el-table-column prop="pv" label="pv"> </el-table-column>
      </el-table>
      <span slot="footer" class="dialog-footer">
        <el-button type="primary" @click="dialogPvVisible = false">确 定</el-button>
      </span>
    </el-dialog>

  </div>
</template>

<script>
    import { fetchList, fetchPv } from 'api/article_table';
    import { parseTime } from 'utils';

    const calendarTypeOptions = [
      { key: 'CN', display_name: '中国' },
      { key: 'US', display_name: '美国' },
      { key: 'JP', display_name: '日本' },
      { key: 'EU', display_name: '欧元区' }
    ];

    // arr to obj
    const calendarTypeKeyValue = calendarTypeOptions.reduce((acc, cur) => {
      acc[cur.key] = cur.display_name;
      return acc
    }, {});

    export default {
      name: 'table_demo',
      data() {
        return {
          list: null,
          total: null,
          listLoading: true,
          listQuery: {
            page: 1,
            limit: 20,
            importance: undefined,
            title: undefined,
            type: undefined,
            sort: '+id'
          },
          temp: {
            id: undefined,
            importance: 0,
            remark: '',
            timestamp: 0,
            title: '',
            type: '',
            status: 'published'
          },
          importanceOptions: [1, 2, 3],
          calendarTypeOptions,
          sortOptions: [{ label: '按ID升序列', key: '+id' }, { label: '按ID降序', key: '-id' }],
          statusOptions: ['published', 'draft', 'deleted'],
          dialogFormVisible: false,
          dialogStatus: '',
          textMap: {
            update: '编辑',
            create: '创建'
          },
          dialogPvVisible: false,
          pvData: [],
          showAuditor: false,
          tableKey: 0
        }
      },
      created() {
        this.getList();
      },
      filters: {
        statusFilter(status) {
          const statusMap = {
            published: 'success',
            draft: 'gray',
            deleted: 'danger'
          };
          return statusMap[status]
        },
        typeFilter(type) {
          return calendarTypeKeyValue[type]
        }
      },
      methods: {
        getList() {
          this.listLoading = true;
          fetchList(this.listQuery).then(response => {
            this.list = response.data.items;
            this.total = response.data.total;
            this.listLoading = false;
          })
        },
        handleFilter() {
          this.getList();
        },
        handleSizeChange(val) {
          this.listQuery.limit = val;
          this.getList();
        },
        handleCurrentChange(val) {
          this.listQuery.page = val;
          this.getList();
        },
        timeFilter(time) {
          if (!time[0]) {
            this.listQuery.start = undefined;
            this.listQuery.end = undefined;
            return;
          }
          this.listQuery.start = parseInt(+time[0] / 1000);
          this.listQuery.end = parseInt((+time[1] + 3600 * 1000 * 24) / 1000);
        },
        handleModifyStatus(row, status) {
          this.$message({
            message: '操作成功',
            type: 'success'
          });
          row.status = status;
        },
        handleCreate() {
          this.resetTemp();
          this.dialogStatus = 'create';
          this.dialogFormVisible = true;
        },
        handleUpdate(row) {
          this.temp = Object.assign({}, row);
          this.dialogStatus = 'update';
          this.dialogFormVisible = true;
        },
        handleDelete(row) {
          this.$notify({
            title: '成功',
            message: '删除成功',
            type: 'success',
            duration: 2000
          });
          const index = this.list.indexOf(row);
          this.list.splice(index, 1);
        },
        create() {
          this.temp.id = parseInt(Math.random() * 100) + 1024;
          this.temp.timestamp = +new Date();
          this.temp.author = '原创作者';
          this.list.unshift(this.temp);
          this.dialogFormVisible = false;
          this.$notify({
            title: '成功',
            message: '创建成功',
            type: 'success',
            duration: 2000
          });
        },
        update() {
          this.temp.timestamp = +this.temp.timestamp;
          for (const v of this.list) {
            if (v.id === this.temp.id) {
              const index = this.list.indexOf(v);
              this.list.splice(index, 1, this.temp);
              break;
            }
          }
          this.dialogFormVisible = false;
          this.$notify({
            title: '成功',
            message: '更新成功',
            type: 'success',
            duration: 2000
          });
        },
        resetTemp() {
          this.temp = {
            id: undefined,
            importance: 0,
            remark: '',
            timestamp: 0,
            title: '',
            status: 'published',
            type: ''
          };
        },
        handleFetchPv(pv) {
          fetchPv(pv).then(response => {
            this.pvData = response.data.pvData;
            this.dialogPvVisible = true;
          })
        },
        handleDownload() {
          require.ensure([], () => {
            const { export_json_to_excel } = require('vendor/Export2Excel');
            const tHeader = ['时间', '地区', '类型', '标题', '重要性'];
            const filterVal = ['timestamp', 'province', 'type', 'title', 'importance'];
            const data = this.formatJson(filterVal, this.list);
            export_json_to_excel(tHeader, data, 'table数据');
          })
        },
        formatJson(filterVal, jsonData) {
          return jsonData.map(v => filterVal.map(j => {
            if (j === 'timestamp') {
              return parseTime(v[j])
            } else {
              return v[j]
            }
          }))
        }
      }
    }
</script>
