<template>
  <div style="width: 100%; height: 100%">
    <vue-chart :option="chartOption" style="width: 100%; height: 100%" />
  </div>
</template>
<script lang="ts" setup>
import VueChart from "./VueChart.vue";
// import * as echarts from "echarts";
import "echarts-gl";
import { Ref, computed, ref, watch } from "vue";
import { useAppStoreHook } from "@/store/modules/app";
import { EchartOptions, delay, useDark, useECharts } from "@pureadmin/utils";
const { isDark } = useDark();

const theme: EchartOptions["theme"] = computed(() => {
  return isDark.value ? "dark" : "light";
});

const pieChartRef = ref<HTMLDivElement | null>(null);
const { resize } = useECharts(pieChartRef as Ref<HTMLDivElement>, {
  theme
});

const props = defineProps({
  data: {
    type: Array,
    default: () => []
  }
});

// const selectedIndex = "";
// const hoveredIndex = "";

// const option_data = getPie3D(props.data, 0);

// 生成扇形的曲面参数方程
function getParametricEquation(
  startRatio,
  endRatio,
  isSelected,
  isHovered,
  k,
  h
) {
  // 计算
  const midRatio = (startRatio + endRatio) / 2;

  const startRadian = startRatio * Math.PI * 2;
  const endRadian = endRatio * Math.PI * 2;
  const midRadian = midRatio * Math.PI * 2;

  // 如果只有一个扇形，则不实现选中效果。
  if (startRatio === 0 && endRatio === 1) {
    // eslint-disable-next-line no-param-reassign
    isSelected = false;
  }

  // 通过扇形内径/外径的值，换算出辅助参数 k（默认值 1/3）
  // eslint-disable-next-line no-param-reassign
  k = typeof k !== "undefined" ? k : 1 / 3;

  // 计算选中效果分别在 x 轴、y 轴方向上的位移（未选中，则位移均为 0）
  const offsetX = isSelected ? Math.cos(midRadian) * 0.1 : 0;
  const offsetY = isSelected ? Math.sin(midRadian) * 0.1 : 0;

  // 计算高亮效果的放大比例（未高亮，则比例为 1）
  const hoverRate = isHovered ? 1.05 : 1;

  // 返回曲面参数方程
  return {
    u: {
      min: -Math.PI,
      max: Math.PI * 3,
      step: Math.PI / 32
    },

    v: {
      min: 0,
      max: Math.PI * 2,
      step: Math.PI / 20
    },

    x(u, v) {
      if (u < startRadian) {
        return (
          offsetX + Math.cos(startRadian) * (1 + Math.cos(v) * k) * hoverRate
        );
      }
      if (u > endRadian) {
        return (
          offsetX + Math.cos(endRadian) * (1 + Math.cos(v) * k) * hoverRate
        );
      }
      return offsetX + Math.cos(u) * (1 + Math.cos(v) * k) * hoverRate;
    },

    y(u, v) {
      if (u < startRadian) {
        return (
          offsetY + Math.sin(startRadian) * (1 + Math.cos(v) * k) * hoverRate
        );
      }
      if (u > endRadian) {
        return (
          offsetY + Math.sin(endRadian) * (1 + Math.cos(v) * k) * hoverRate
        );
      }
      return offsetY + Math.sin(u) * (1 + Math.cos(v) * k) * hoverRate;
    },

    z(u, v) {
      if (u < -Math.PI * 0.5) {
        return Math.sin(u);
      }
      if (u > Math.PI * 2.5) {
        return Math.sin(u) * h * 0.1;
      }
      // 当前图形的高度是Z根据h（每个value的值决定的）
      return Math.sin(v) > 0 ? 1 * h * 0.1 : -1;
    }
  };
}
// 生成模拟 3D 饼图的配置项
function getPie3D(pieData, internalDiameterRatio) {
  const series = [];
  // 总和
  let sumValue = 0;
  let startValue = 0;
  let endValue = 0;
  const legendData = [];
  const k =
    typeof internalDiameterRatio !== "undefined"
      ? (1 - internalDiameterRatio) / (1 + internalDiameterRatio)
      : 1 / 3;

  // 为每一个饼图数据，生成一个 series-surface 配置
  for (let i = 0; i < pieData.length; i += 1) {
    sumValue += pieData[i].value;

    const seriesItem = {
      name:
        typeof pieData[i].name === "undefined" ? `series${i}` : pieData[i].name,
      type: "surface",
      parametric: true,
      wireframe: {
        show: false
      },
      pieData: pieData[i],
      pieStatus: {
        selected: false,
        hovered: false,
        k
      },
      itemStyle: {}
    };

    if (typeof pieData[i].itemStyle !== "undefined") {
      const { itemStyle } = pieData[i];

      // eslint-disable-next-line no-unused-expressions
      typeof pieData[i].itemStyle.color !== "undefined"
        ? (itemStyle.color = pieData[i].itemStyle.color)
        : null;
      // eslint-disable-next-line no-unused-expressions
      typeof pieData[i].itemStyle.opacity !== "undefined"
        ? (itemStyle.opacity = pieData[i].itemStyle.opacity)
        : null;

      seriesItem.itemStyle = itemStyle;
    }
    series.push(seriesItem);
  }
  // 使用上一次遍历时，计算出的数据和 sumValue，调用 getParametricEquation 函数，
  // 向每个 series-surface 传入不同的参数方程 series-surface.parametricEquation，也就是实现每一个扇形。
  for (let i = 0; i < series.length; i += 1) {
    endValue = startValue + series[i].pieData.value;

    series[i].pieData.startRatio = startValue / sumValue;
    series[i].pieData.endRatio = endValue / sumValue;
    series[i].parametricEquation = getParametricEquation(
      series[i].pieData.startRatio,
      series[i].pieData.endRatio,
      false,
      false,
      k,
      // 我这里做了一个处理，使除了第一个之外的值都是10
      series[i].pieData.value === series[0].pieData.value ? 15 : 15
    );

    startValue = endValue;

    legendData.push(series[i].name);
  }
  series.push({
    name: "pie2d",
    type: "pie",
    label: {
      show: false,
      opacity: 10,
      lineHeight: 10,
      fontSize: 16,
      color: "#fff",
      fontWeight: 500,
      formatter: function (params) {
        return params.name + " " + "{hr|" + params.value + "}" + "%";
      },
      rich: {
        hr: {
          align: "center",
          color: "inherit",
          fontSize: 18,
          fontFamily: "D-DIN",
          fontWeight: 600
        }
      }
    },
    labelLine: {
      show: false,
      length: 10,
      length2: 90,
      lineStyle: {
        color: "#fff" // 设置标示线的颜色
      }
    },
    tooltip: {
      show: false
    },
    startAngle: 0, //起始角度，支持范围[0, 360]。
    clockwise: false, //饼图的扇区是否是顺时针排布。上述这两项配置主要是为了对齐3d的样式
    radius: ["20%", "50%"],

    center: ["50%", "50%"],
    data: props.data,
    itemStyle: {
      opacity: 0
    }
  });
  // 准备待返回的配置项，把准备好的 legendData、series 传入。
  const option = {
    color: ["#E80D0D", "#FF8800", "#3250FF"],
    title: {
      show: false,
      text: "设备告警情况",
      textStyle: {
        color: "#fff",
        fontSize: 24,
        fontWeight: 400,
        letterSpacing: 3.6
      },
      left: "center", // center horizontally
      bottom: 0
    },
    legend: {
      bottom: 0,
      data: legendData
    },
    // animation: false,
    tooltip: {
      formatter: params => {
        if (params.seriesName !== "mouseoutSeries") {
          return `${
            params.seriesName
          }<br/><span style="display:inline-block;margin-right:5px;border-radius:10px;width:10px;height:10px;background-color:${
            params.color
          };"></span>${
            option.series[params.seriesIndex].pieData?.value || ""
          }%`;
        }
        return "{value} %";
      }
    },
    xAxis3D: {
      min: -1,
      max: 1
    },
    yAxis3D: {
      min: -1,
      max: 1
    },
    zAxis3D: {
      min: -1,
      max: 1
    },
    grid3D: {
      show: false,
      boxHeight: 12,
      top: "-10%",
      viewControl: {
        // 3d效果可以放大、旋转等，请自己去查看官方配置
        alpha: 24,
        // beta: 30,
        rotateSensitivity: 1,
        zoomSensitivity: 0,
        panSensitivity: 0,
        // autoRotate: true,
        distance: 250
      },
      // 后处理特效可以为画面添加高光、景深、环境光遮蔽（SSAO）、调色等效果。可以让整个画面更富有质感。
      postEffect: {
        // 配置这项会出现锯齿，请自己去查看官方配置有办法解决
        enable: false,
        bloom: {
          enable: true,
          bloomIntensity: 0.1
        },
        SSAO: {
          enable: true,
          quality: "medium",
          radius: 2
        }
        // temporalSuperSampling: {
        //   enable: true,
        // },
      }
    },
    series
  };
  return option;
}

const chartOption = computed(() => {
  return getPie3D(props.data, 0);
});

watch(
  () => useAppStoreHook().getSidebarStatus,
  () => {
    delay(600).then(() => resize());
  }
);
</script>

<style scoped>
.pie_img {
  position: absolute;
  bottom: 48px;
  left: 180px;
  width: 340px;
}
</style>
