<template>
  <!-- 地图 -->
  <Echart
    id="centreLeft2Chart"
    class="centreLeft2Chart"
    :key="key"
    ref="centreLeft2ChartRef"
    width="100%"
    height="100%"
    :options="options"></Echart>
</template>

<script>
  import Echart from "@/common/echart";
  import { mapGetters } from "vuex";
  export default {
    data () {
      return {
        options: {},
        max: "100", //最大value值
        min: "1", // 最小value值
        key: 0,
        mapjson: "",
      };
    },
    components: {
      Echart,
    },
    created () { },
    props: {
      cdata: {
        type: Array,
        default: () => [],
      },
    },
    mounted () {

      window.addEventListener("resize", () => {
        this.key++;
      });
      this.getDistrictcode();
    },
    watch: {
      cdata: {
        handler (newData) {
          let _this = this;
          // 设置点的位置(经纬度)
          const geoCoordMap = {
            汉台区: [107.03187, 33.06774, 20],
            南郑区: [106.94024, 33.00299, 20],
            城固县: [107.33367, 33.15661, 20],
            洋县: [107.545837, 33.222739, 20],
            西乡县: [107.76867, 32.98411, 20],
            镇巴县: [107.89648, 32.53487, 20],
            勉县: [106.673221, 33.153553, 20],
            留坝县: [106.92233, 33.61606, 20],
            佛坪县: [107.98974, 33.52496, 20],
            宁强县: [106.25958, 32.82881, 20],
            略阳县: [106.15399, 33.33009, 20],
          };
          this.options = {
            showLegendSymbol: true,
            tooltip: {
              trigger: "item",
              textStyle: {
                fontSize: 14,
                lineHeight: 22,
              },
              position: (point) => {
                // 固定在顶部
                return [point[0] + 50, point[1] - 20];
              },
              // 如果需要自定义 tooltip样式，需要使用formatter
              formatter: (params) => {
                return `<div style="">${params.name}:${params.value + "个"
                  }</div>`;
              },
            },
            visualMap: {
              min: 0,
              max: _this.max,
              bottom: "13%",
              left: 50,
              splitNumber: 6,
              seriesIndex: [0],
              itemWidth: 20, // 每个图元的宽度
              itemGap: 2, // 每两个图元之间的间隔距离，单位为px
              pieces: [
                // 自定义每一段的范围，以及每一段的文字
                { gte: 100, label: "100以上", color: "#035cf5" }, // 不指定 max，表示 max 为无限大（Infinity）。
                { gte: 50, lte: 6000, label: "20-100", color: "#3375e4" },
                { gte: 20, lte: 2000, label: "1-200", color: "#6797ef" },
                { gte: 1, lte: 1000, label: "1-20", color: "#96b5ef" },
              ],
              textStyle: {
                color: "#737373",
              },
            },
            geo: {
              aspectScale: 1, //长宽比
              zoom: 1.1,
              mapType: "", // 自定义扩展图表类型
              top: "15%",
              left: "10%",
              map: "汉中市",
              itemStyle: {
                normal: {
                  //阴影
                  areaColor: "#5689FD ",
                  shadowColor: "#21371d",
                  borderWidth: 0,
                  shadowOffsetX: 2,
                  shadowOffsetY: 25,
                },
              },
            },
            series: [
              {
                type: "map",
                aspectScale: 1, //长宽比
                zoom: 1.1,
                mapType: "汉中市", // 自定义扩展图表类型
                top: "15%",
                left: "10%",
                itemStyle: {
                  normal: {
                    areaColor: "rgba(19,54,162,.5)",
                    borderColor: "rgba(0,242,252,.5)",
                    borderWidth: 2,
                    shadowBlur: 1,
                    borderColor: "rgb(155, 200, 200)",
                    shadowColor: "#44f2fc",
                  },
                },
                label: {
                  formatter: (params) => {
                    return `${params.name}\n${params.value + "个"}`;
                  },
                  show: true,
                  position: "insideRight",
                  textStyle: {
                    fontSize: 14,
                    color: "#efefef",
                  },
                  emphasis: {
                    textStyle: {
                      color: "#fff",
                    },
                  },
                },
                data: newData,
              },
            ],
          };
          // 重新选择区域
          this.handleMapRandomSelect();
        },

        immediate: true,
        deep: true,
      },
    },
    computed: {
      ...mapGetters(["sidebar", "dicData"]),
      logoName () {
        return (
          this.dicData["sysCode"].filter((item) => { return item.DCODE == "areaMap" })
        );
      },
    },
    methods: {
      // 根据行政区代码匹配行政区
      getDistrictcode () {
        this.mapjson = ""
        if (this.logoName[0].DNAME) {
          this.mapjson = this.logoName[0].DNAME;
          require(`@/common/map/${this.mapjson}.js`);
        }
      },
      // 开启定时器
      startInterval () {
        const _self = this;
        // 应通过接口获取配置时间，暂时写死5s
        const time = 2000;
        if (this.intervalId !== null) {
          clearInterval(this.intervalId);
        }
        this.intervalId = setInterval(() => {
          this.$refs.centreLeft2ChartRef && _self.reSelectMapRandomArea();
        }, time);
      },
      // 重新随机选中地图区域
      reSelectMapRandomArea () {
        const length = 9;
        this.$nextTick(() => {
          try {
            const map = this.$refs.centreLeft2ChartRef.chart;
            let index = Math.floor(Math.random() * length);
            while (index === this.preSelectMapIndex || index >= length) {
              index = Math.floor(Math.random() * length);
            }
            map.dispatchAction({
              type: "mapUnSelect",
              seriesIndex: 0,
              dataIndex: this.preSelectMapIndex,
            });
            map.dispatchAction({
              type: "showTip",
              seriesIndex: 0,
              dataIndex: index,
            });
            map.dispatchAction({
              type: "mapSelect",
              seriesIndex: 0,
              dataIndex: index,
            });
            this.preSelectMapIndex = index;
          } catch (error) {
            console.log(error);
          }
        });
      },
      handleMapRandomSelect () {
        this.$nextTick(() => {
          try {
            const map = this.$refs.centreLeft2ChartRef.chart;
            const _self = this;
            setTimeout(() => {
              _self.reSelectMapRandomArea();
            }, 0);
            // 移入区域，清除定时器、取消之前选中并选中当前
            map.on("mouseover", function (params) {
              clearInterval(_self.intervalId);
              map.dispatchAction({
                type: "mapUnSelect",
                seriesIndex: 0,
                dataIndex: _self.preSelectMapIndex,
              });
              map.dispatchAction({
                type: "mapSelect",
                seriesIndex: 0,
                dataIndex: params.dataIndex,
              });
              _self.preSelectMapIndex = params.dataIndex;
            });
            // 移出区域重新随机选中地图区域，并开启定时器
            map.on("globalout", function () {
              _self.reSelectMapRandomArea();
              _self.startInterval();
            });
            this.startInterval();
          } catch (error) {
            console.log(error);
          }
        });
      },
    },
  };
</script>
<style></style>