<template>
  <Echart ref="chart" :options="option" height="100%" width="100%" />
</template>
  <script>
/**
     * @author 王晓颖
     * @date 2020/08/19
     * @Description 折线面积图
     * @props 数据格式：{
     *    id: 'traffic_govern_line_id',
        legend:['近一周日均车位占用率','近一周日均车位停车次数'], // 可不传
        xAxisData:['周一','周二','周三','周四','周五','周六','周日'],
        axisData: [
          {name:'近一周日均车位占用率',data:[120, 252, 101, 134, 290, 230, 110],color:'58,55,194'},
        ]
      }
     *
     */
import Echart from "./../index";
import { countSize } from "@/utils/index";
export default {
  name: "GradientLineChart",
  components: { Echart },
  props: {
    unit: {
      // 单位
      type: String,
      default: "",
    },
    colors: {
      // 颜色
      type: Array,
      default: () => {
        return ["#01b4ff", "#0337ff"];
      },
    },
    axisLineColor: {
      // 轴线颜色
      type: String,
      default: "#101d5d",
    },
    fontColor: {
      // 轴线上文字颜色
      type: String,
      default: "#000fff",
    },
    labelColor: {
      // 图形上文本标签颜色
      type: String,
      default: "#47c8b2",
    },
    smooth: {
      type: Boolean,
      default: true,
    }, // 平滑
    seriesData: {
      // 数据
      type: Array,
      default: () => {
        return [];
      },
    },
    xAxisData: {
      // X轴数据
      type: Array,
      default: () => {
        return [];
      },
    },
    legend: {
      //
      type: Array,
      default: () => {
        return [];
      },
    },
  },
  data() {
    return {
      curWidth: this.width,
      curHeight: this.height,
      option: {
        grid: {
          left: 30,
          right: 30,
          bottom: 30,
          top: 10,
          containLabel: true,
        },
        legend: {
          orient: "horizontal",
          data: [],
          align: "left",
          right: "5%",
          itemWidth: 12,
          itemHeight: 12,
          icon: "rect",
          textStyle: {
            width: "300",
            color: "#000",
            fontSize: 12,
          },
        },
        tooltip: {
          trigger: "axis",
          textStyle: {
            fontSize: "16",
          },
          axisPointer: {
            type: "line",
            label: {
              fontSize: "16",
            },
          },
        },
        xAxis: [
          {
            type: "category",
            boundaryGap: true,
            data: [],
            axisLine: {
              lineStyle: {
                color: this.axisLineColor, // 轴线的颜色
              },
            },
            axisLabel: {
              color: this.fontColor, // X轴名称颜色
              fontSize: 14,
            },
            axisTick: {
              show: true,
              alignWithLabel: true,
            },
          },
        ],
        yAxis: [
          {
            name: this.unit,
            type: "value",
            color: "#000",
            nameTextStyle: {
              color: "#000",
              fontSize: 14,
              verticalAlign: "middle",
            },
            splitLine: {
              show: true,
              lineStyle: {
                color: ["#101641"],
                type: "dashed",
              },
            },
            axisLine: {
              show: false,
              lineStyle: {
                color: this.axisLineColor,
              },
            },
            axisLabel: {
              color: this.fontColor,
              fontSize: 12,
            },
          },
        ],
        series: [],
      },
    };
  },
  watch: {
    xAxisData(newVal) {
      this.option.xAxis[0].data = newVal;
      // this.refreshEchart()
    },
    legend(newVal) {
      this.option.legend[0].data = newVal;
      // this.refreshEchart()
    },
    unit(newVal) {
      this.option.yAxis[0].name = newVal;
      // this.refreshEchart()
    },
    seriesData: {
      handler(newVal) {
        const newSeries = [];
        for (const item of newVal) {
          const series = {
            name: item.name,
            type: "line",
            symbol: "none", // 去掉折线节点
            smooth: this.smooth, // 曲线变平滑
            lineStyle: {
              width: 1,
            },
            areaStyle: {
              opacity: 0.5,
            },
            data: item.data,
          };
          newSeries.push(series);
        }
        this.$set(this.option, "series", newSeries);
        //   this.refreshChart()
      },
      deep: true,
    },
  },
  // mounted() {
  //   this.refreshChart()
  // },
  // methods: {
  //   refreshChart() {
  //     this.unit && (this.option.yAxis[0].name = this.unit)
  //     if (this.xAxisData.length) {
  //       this.option.legend.data = this.legend
  //       this.option.xAxis[0].data = this.xAxisData
  //       const newSeries = []
  //       for (const item of this.seriesData) {
  //         const series = {
  //           name: item.name,
  //           type: 'line',
  //           symbol: 'none', // 去掉折线节点
  //           smooth: this.smooth, // 曲线变平滑
  //           itemStyle: {
  //             color: `rgb(${item.color})`
  //           },
  //           lineStyle: {
  //             width: 1
  //           },
  //           areaStyle: {
  //             color: new this.$echarts.graphic.LinearGradient(
  //               0, 0, 0, 1, // 变化度 //三种由深及浅的颜色
  //               [
  //                 {
  //                   offset: 0.1,
  //                   color: `rgba(${item.color},.6)`
  //                 },
  //                 {
  //                   offset: 1,
  //                   color: 'rgba(0,0,0,.0)'
  //                 }
  //               ]
  //             )
  //           },
  //           data: item.data
  //         }
  //         newSeries.push(series)
  //       }
  //       this.$set(this.option, 'series', newSeries)
  //     }
  //   }
  // }
};
</script>
  
  <style scoped>
</style>