<template>
  <div class="app-container">
    <!--表单-->
    <el-form :inline="true" class="demo-form-inline">

      <el-form-item label="日期">
        <el-date-picker
          v-model="day"
          type="date"
          placeholder="选择要统计的日期"
          value-format="yyyy-MM-dd" />
      </el-form-item>

      <el-button
        :disabled="btnDisabled"
        type="primary"
        @click="create()">生成</el-button>
    </el-form>

  </div>
</template>
<script>
import daily from ‘@/api/sta‘

export default {
  data() {
    return {
      day: ‘‘,
      btnDisabled: false
    }
  },

  methods: {
    create() {
      this.btnDisabled = true
      daily.createStatistics(this.day).then(response => {
        this.btnDisabled = false
        this.$message({
          type: ‘success‘,
          message: ‘生成数据成功‘
        })
        this.$router.push({path:‘/sta/show‘})
      })
    }
  }
}
</script>

<template>
  <div class="app-container">
    <!--表单-->
    <el-form :inline="true" class="demo-form-inline">

      <el-form-item>
        <el-select v-model="searchObj.type" clearable placeholder="请选择">
          <el-option label="学员登录数统计" value="login_num"/>
          <el-option label="学员注册数统计" value="register_num"/>
          <el-option label="课程播放数统计" value="video_view_num"/>
          <el-option label="每日课程数统计" value="course_num"/>
        </el-select>
      </el-form-item>

      <el-form-item>
        <el-date-picker
          v-model="searchObj.begin"
          type="date"
          placeholder="选择开始日期"
          value-format="yyyy-MM-dd" />
      </el-form-item>
      <el-form-item>
        <el-date-picker
          v-model="searchObj.end"
          type="date"
          placeholder="选择截止日期"
          value-format="yyyy-MM-dd" />
      </el-form-item>
      <el-button
        :disabled="btnDisabled"
        type="primary"
        icon="el-icon-search"
        @click="showChart()">查询</el-button>
    </el-form>

    <div class="chart-container">
      <div id="chart" class="chart" style="height:500px;width:100%" />
    </div>
  </div>
</template>
<script>
import echarts from ‘echarts‘
import staApi from ‘@/api/sta‘

export default {
  data() {
    return {
      searchObj: {
        type: ‘‘,
        begin: ‘‘,
        end: ‘‘
      },
      btnDisabled: false,
      chart: null,
      title: ‘‘,
      xData: [],
      yData: []
    }
  },
  methods: {
    showChart() {
        this.initChartData()
        // this.setChart()//放在initChartData回调中执行
        },

        // 准备图表数据
    initChartData() {
        staApi.showChart(this.searchObj).then(response => {
            // 数据
            this.yData = response.data.numDataList

            // 横轴时间
            this.xData = response.data.data_calculatedList

            // 当前统计类别
            switch (this.searchObj.type) {
            case ‘register_num‘:
                this.title = ‘学员注册数统计‘
                break
            case ‘login_num‘:
                this.title = ‘学员登录数统计‘
                break
            case ‘video_view_num‘:
                this.title = ‘课程播放数统计‘
                break
            case ‘course_num‘:
                this.title = ‘每日课程数统计‘
                break
            }

            this.setChart()
        })
    },

    // 设置图标参数
    setChart() {
      // 基于准备好的dom，初始化echarts实例
      this.chart = echarts.init(document.getElementById(‘chart‘))
      // console.log(this.chart)

      // 指定图表的配置项和数据
      var option = {
        // x轴是类目轴（离散数据）,必须通过data设置类目数据
        xAxis: {
          type: ‘category‘,
          data: this.xData
        },
        // y轴是数据轴（连续数据）
        yAxis: {
          type: ‘value‘
        },
        title: {
            text: this.title
        },
        tooltip: {
            trigger: ‘axis‘
        },
        // 系列列表。每个系列通过 type 决定自己的图表类型
        series: [{
          // 系列中的数据内容数组
          data: this.yData,
          // 折线图
          type: ‘line‘
        }],
        dataZoom: [{
            show: true,
            height: 30,
            xAxisIndex: [
                0
            ],
            bottom: 30,
            start: 10,
            end: 80,
            handleIcon: ‘path://M306.1,413c0,2.2-1.8,4-4,4h-59.8c-2.2,0-4-1.8-4-4V200.8c0-2.2,1.8-4,4-4h59.8c2.2,0,4,1.8,4,4V413z‘,
            handleSize: ‘110%‘,
            handleStyle: {
                color: ‘#d3dee5‘

            },
            textStyle: {
                color: ‘#fff‘
            },
            borderColor: ‘#90979c‘
            },
            {
            type: ‘inside‘,
            show: true,
            height: 15,
            start: 1,
            end: 35
            }]
        }

        this.chart.setOption(option)
    }
  }
}
</script>