<template>
  <!-- 用户数量变化趋势 -->
  <div class="chart-container">
    <div class="chart-header">
      <!--标题  -->
      <span class="title">用户数量变化趋势</span>
    </div>
    <div class="chart-content" :style="{ height: height, width: width }">
      <!-- echarts内容 -->
      <gradientLineChart
        :seriesData="seriesData"
        :xAxisData="xAxisData"
        :legend="legend"
      />
    </div>
  </div>
</template>

<script>
import gradientLineChart from "../../../components/echart/lineChart/gradientLineChart.vue";
import { getUserTrend } from "@/api/cockpit/cockpit";
export default {
  name: "layoutChartSelectTrend",
  components: {
    gradientLineChart,
  },
  props: {
    width: {
      type: String,
      default: "500px",
    },
    height: {
      type: String,
      default: "300px",
    },
  },
  data() {
    return {
      seriesData: [],
      xAxisData: [],
      yAxisData: [],
      legend: [],
    };
  },
  mounted() {
    this.fetchData();
  },
  methods: {
    fetchData() {
      // 获取近一月设备数量统计数据
      getUserTrend().then((res) => {
        // 图表数据
        let seriesData = [];
        let legend = []
        if (res.data.length > 0) {
          for(var user in res.data[0]){
            legend.push(user)
            seriesData.push({
              name:user,
              data:[]
            })
          }
        }
        for (var i =0; i<res.data.length;i++) {
          seriesData.forEach(item => {
            if (item.name in res.data[i]) {
              item.data.push(res.data[i][item.name])
            }
          })
        }
        this.seriesData = seriesData.slice(1)
        // x轴数据
        this.xAxisData = seriesData.slice(0,1).data;
        // 提示
        this.legend = legend.slice(1)
        console.log(this.legend)
      });
    },
  },
};
</script>

<style lang="scss" scoped>
.chart-container {
  .chart-header {
    width: 600px;
    align-items: center;
    display: flex;
    justify-content: space-between;
  }
}
</style>