<template>
  <div id="ts-linebar" class="container" />
</template>

<script>
// import { multiScoreKeyArea} from '@/api/pop';
import * as echarts from 'echarts';
import { getRate } from "../../../../../api/ywts/shms/jy";

export default {
  name: 'TsLineBar',
  data() {
    return {
      isShow: true,
      myChart: null,
      height: '0',
      width: '0',
      chartSettings: {
        labelMap: { date: '时间' },
        metrics: [],
        dimension: ['date']
      },
      extend: {
        color: ['#0071ff88', '#00afff88', '#00fdc088'],
        legend: {
          textStyle: {
            color: '#cce9ff',
            fontWeight: 'bold'
          },
          lineStyle: {
            width: 10
          },
          data: ['教师人数', '学生人数', '师生比']
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#cce9ff'
            }
          }
        },
        grid: {
          left: '5%',
          right: '5%',
          bottom: '0%',
          top: '15%',
          containLabel: true
        },
        xAxis: {
          type: 'category',
          axisLine: {
            lineStyle: {
              color: '#cce9ff'
            }
          },
          axisLabel: {
            color: '#cce9ff'
          }
        },
        yAxis: [
          {
            name: '人数',
            position: 'left',
            type: 'value',
            axisLine: {
              lineStyle: {
                color: '#cce9ff'
              }
            },
            axisLabel: {
              color: '#cce9ff'
            }
          },
          {
            name: '师生比',
            position: 'right',
            type: 'value',
            axisLine: {
              lineStyle: {
                color: '#cce9ff'
              }
            },
            axisLabel: {
              color: '#cce9ff'
            }
          }
        ],
        series: [
          {
            name: '教师人数',
            type: 'bar',
            barMaxWidth: 30,
            label: {
              show: true,
              position: 'insideTop'
            },
            itemStyle: {
              color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                { offset: 1, color: 'rgba(10,25,124,0.0)' },
                { offset: 0.3, color: 'rgba(0,253,232,0.8)' },
                { offset: 0, color: 'rgba(0,178,172,0.8)' }
              ])
            }
          }, {
            name: '学生人数',
            type: 'bar',
            barMaxWidth: 30,
            label: {
              show: true,
              position: 'insideTop'
            },
            itemStyle: {
              color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                { offset: 1, color: 'rgba(10,25,124,0.0)' },
                { offset: 0.3, color: 'rgba(0,253,232,0.8)' },
                { offset: 0, color: 'rgba(0,178,172,0.8)' }
              ])
            }
          },
          {
            name: '师生比',
            yAxisIndex: 1,
            type: 'line',
            symbol: 'circle',
            symbolSize: 6,
            color: 'rgba(255,190,68,1)',
            areaStyle: {
              color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [
                {
                  offset: 0.5,
                  color: 'rgba(255,190,68,0.7)',
                },
                {
                  offset: 1,
                  color: 'rgba(10,25,124,0.2)'
                }
              ])
            },
            emphasis: {
              focus: 'series'
            },
            label: {
              show: true,
              position: 'insideBottom'
            }
          }
        ]
      },
      chartData: {
        columns: [],
        rows: []
      }
    }
  },
  mounted() {
    this.myChart = echarts.init(document.getElementById('ts-linebar'))
    this.height = document.getElementById('ts-linebar').clientHeight - 10 + 'px'
    this.width = document.getElementById('ts-linebar').clientWidth - 10 + 'px'
    const that = this
    window.addEventListener('resize', function () {
      if (!document.getElementById('ts-linebar')) {
        return
      }
      that.reload()
    })
  },

  methods: {
    async reload() {
      this.isShow = false
      await this.$nextTick()
      this.height = document.getElementById('ts-linebar').clientHeight - 10 + 'px'
      this.width = document.getElementById('ts-linebar').clientWidth - 10 + 'px'
      this.isShow = true
    },
    // 获取数据
    fetchData(id) {
      getRate(id).then(res => {
        if (res.code === 200) {
          const data = res.data.value
          console.log(data)
          if (data.length !== 0) {
            this.extend.series[0].data = data.map(item => item.teacher)
            this.extend.series[1].data = data.map(item => item.student)
            this.extend.series[2].data = data.map(item => item.rate.replace('%', ''))
            this.extend.xAxis.data = data.map(item => item.month)
            this.myChart.setOption(this.extend, true)
          }
        }
      })
      // this.extend.series[0].data = [5154,4545,2455,7212,4545,2455,7212]
      // this.extend.series[1].data = [554,455,455,721,445,455,712]
      // this.extend.series[2].data = [1,0.5,1,1.5,1,1.8,0.9]
      // this.extend.xAxis.data = ['1','2','3','4','5','6','7']
      // this.myChart.setOption(this.extend, true)

    }
  }
}
</script>
<style lang="scss" scoped>
.container {
  position: relative;
  width: 100%;
  height: 100%;
}
</style>