<template>
  <div class="chart" :id="id" :style="{ width, height }"></div>
</template>

<script>
import util from "@/helper/util.js";
import partten from "@/helper/partten.js";
import * as echarts from "echarts";
import dayjs from "dayjs";
export default {
  name: "multiple-bar-chart",
  componentName: "multiple-bar-chart",
  props: {
    width: {
      type: String,
      default: "100%",
    },
    height: {
      type: String,
      default: "13.889vh",
    },
    pillarName: {
      type: String,
      default: "",
    },
    top: {
      type: Number,
      default: 30,
    },
    interval: {
      type: Number,
      default: 0,
    },
    padding: {
      type: Array,
      default: () => [10, 10],
    },
    // 传入数据
    list: {
      type: Array,
      default: () => [],
    },
    // 单位
    units: {
      type: Array,
      default: () => ["(万KWh)", ""],
    },
    // 显示 legend
    showLegend: {
      type: Boolean,
      default: true,
    },
    // X轴是否为时间
    xdate: {
      type: Boolean,
      default: true,
    },
    // 颜色#
    color: {
      type: Array,
      default: () => [
        "#005bd9",
        "#019f2e",
        "#db6200",
        "#a10f0f",
        "#850894",
        "#9fa0a2",
      ],
    },
    showAnimation: {
      type: Boolean,
      default: true,
    },
    colorIndex: {
      type: Boolean,
      default: false,
    },
    // 柱子最大宽度
    barMaxWidth: {
      type: Number || String,
      default: 0,
    },
    // 柱子间距
    barGap: {
      type: Number || String,
      default: 0,
    },
    dataInterval: {
      type: String,
      default: "D",
    },
  },
  data() {
    return {
      id: "",
      chart: null,
      firstAnimation: true,
    };
  },
  computed: {
    legend() {
      return this.list.map((t) => {
        return t.name;
      });
    },
    xdata() {
      let result = [];
      if (this.list && this.list.length > 0) {
        result = this.list[0].date.map((t) => {
          if (this.dataInterval === "M") {
            return dayjs(t).format("YYYY-MM");
          } else if (this.dataInterval === "Y") {
            return dayjs(t).format("YYYY");
          } else {
            return this.xdate ? dayjs(t).format("MM-DD") : t;
          }
        });
      }
      return result;
    },
    ydata() {
      let result = [];
      this.units.forEach((value, index) => {
        let data = null;
        if (index == 0) {
          data = {
            type: "value",
            name: value,
            axisLabel: {
              formatter: "{value} ",
              fontSize: 12,
              textStyle: {
                color: "#828484",
              },
            },
            //分格线
            splitLine: {
              lineStyle: {
                color: "rgba(96,103,105,0.3)",
                type: "dashed",
              },
            },
          };
        } else {
          data = {
            type: "value",
            name: value,
            axisLabel: {
              formatter: "{value}",
              fontSize: 12,
              textStyle: {
                color: "#828484",
              },
            },
            //分格线
            splitLine: {
              show: false,
            },
          };
        }

        result.push(data);
      });

      return result;
    },
    series() {
      let result = [];
      if (this.list && this.list.length > 0) {
        this.list.forEach((value, index) => {
          let seriesItem = {
            name: value.name,
            type: "bar",
            barWidth: "12",
            animation: this.firstAnimation && this.showAnimation,
            yAxisIndex: value.yAxisIndex,
            itemStyle: {
              borderColor: this.color[index],
              borderWidth: 1,
              // shadowBlur: 1,
              // shadowColor: "#16ADD4",
            },
            data: value.children,
          };
          result.push(seriesItem);
        });
      }
      return result;
    },
    colorList() {
      let result = [
        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#1c99ff" }, // 设置颜色渐变
            { offset: 1, color: "rgba(0,70,212,0)" },
          ],
        },
        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#DC143C" }, // 设置颜色渐变
            { offset: 1, color: "rgba(255,105,180,0)" },
          ],
        },
        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#ea8b00" },
            { offset: 1, color: "rgba(168,83,0,0)" },
          ],
        },

        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#696969" },
            { offset: 1, color: "rgba(211,211,211,0)" },
          ],
        },
        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#ff5378" },
            { offset: 1, color: "rgba(167,17,49,0)" },
          ],
        },
        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#05bb4c" },
            { offset: 1, color: "rgba(0,75,11,0)" },
          ],
        },
      ];
      let result1 = [
        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#DC143C" }, // 设置颜色渐变
            { offset: 1, color: "rgba(255,105,180,0)" },
          ],
        },
        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#ea8b00" },
            { offset: 1, color: "rgba(168,83,0,0)" },
          ],
        },

        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#696969" },
            { offset: 1, color: "rgba(211,211,211,0)" },
          ],
        },
        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#ff5378" },
            { offset: 1, color: "rgba(167,17,49,0)" },
          ],
        },
        {
          type: "linear",
          x: 0,
          y: 0,
          x2: 0,
          y2: 1,
          colorStops: [
            { offset: 0, color: "#05bb4c" },
            { offset: 1, color: "rgba(0,75,11,0)" },
          ],
        },
      ];
      return this.colorIndex ? result1 : result;
    },
  },
  methods: {
    resize() {
      this.initChart();
    },
    initChart() {
      let chart = echarts.init(this.$el);
      let option = {
        color: this.color,

        title: {
          text: this.pillarName,
          textStyle: {
            color: "#999999",
            fontSize: 18,
          },
        },
        zoom: 12,
        tooltip: {
          trigger: "axis",
          backgroundColor: "rgba(5, 187, 76,0.35)",
          borderWidth: 1,
          padding: [10, 10, 3, 10],
          borderColor: "#05bb4c",
          textStyle: {
            color: "#fff",
            fontSize: 12,
          },
          axisPointer: {
            type: "shadow",
            shadowStyle: {
              color: "rgba(105,105,105, .05)",
              width: "1",
            },
          },
        },
        legend: {
          show: this.showLegend,
          data: this.legend,
          padding: this.padding,
          right: 56,
          icon: "ract",
          itemWidth: 8,
          itemHeight: 8,
          inactiveColor: partten.getColor("gray"),
          textStyle: {
            fontSize: 12,
            color: partten.getColor("grayl"),
          },
        },
        grid: {
          top: 40,
          left: 10,
          right: 15,
          bottom: 10,
          containLabel: true,
        },
        xAxis: [
          {
            type: "category",
            data: this.xdata,
            nameLocation: "center",
            axisPointer: {
              type: "shadow",
            },
            axisLabel: {
              interval: this.interval,
              fontSize: 12,
              textStyle: {
                color: "rgb(116,124,128)",
              },
            },
          },
        ],
        yAxis: this.ydata,
        series: this.series,
      };
      chart.clear();
      chart.setOption(option);

      this.resize = function () {
        chart.resize();
      };

      window.addEventListener("resize", this.resize);
    },
  },
  created() {
    this.$nextTick(() => {
      this.id = "pie-chart-" + util.newGUID();
    });
  },
  mounted() {
    this.$nextTick(() => {
      //   this.$el.style.width = this.width;
      //   this.$el.style.height = this.height;
      this.initChart();
      this.firstAnimation = false;
    });
  },
  updated() {
    this.$nextTick(() => {
      this.initChart();
    });
  },
  unmounted() {
    window.removeEventListener("resize", this.resize);
  },

  watch: {
    "$store.state.themeName"() {
      this.initChart();
    },
  },
};
</script>

<style lang="less">
// .chart {
//   width: 100%;
//   height: 100%;
//   display: inline-block;
// }
</style>
