<!--
 * @Author: SunTao 328867980@qq.com
 * @Date: 2024-10-14 10:46:23
 * @LastEditors: SunTao 328867980@qq.com
 * @LastEditTime: 2024-10-15 09:41:43
 * @FilePath: \znxjxt-ui\src\views\xj\inspection\task-management\components\fssm-map.vue
 * @Description: 公共地图
-->

<template>
  <div class="map-container">
    <div ref="container" :id="`map-${mapId}`"></div>
    <div ref="mapController" v-if="showZoom" class="control-container">
      <div class="bigButton">
        <i class="el-icon-plus" @click="changeZoom(1, 0.5)"></i>
      </div>
      <div class="smallButton">
        <i class="el-icon-minus" @click="changeZoom(-1, 0.5)"></i>
      </div>
    </div>
  </div>
</template>

<script>
import { Map, View } from "ol";
import XYZ from "ol/source/XYZ";
import { Tile as TileLayer } from "ol/layer";
import { defaults as defaultControls } from "ol/control";
export default {
  name: "FssmMap",
  props: {
    // 接收传过来得中心点
    centerPoint: {
      type: Object,
      default: () => {
        return { lat: 123.30297096718999, lon: 41.87942945541742 };
      },
    },
    // 接受传过来得地图层级
    zoom: {
      type: String,
      default: "10",
    },
    // 是否显示地图放大缩小
    showZoom: {
      type: Boolean,
      default: true,
    },
    mapId: {
      type: String,
      default: "0",
    },
  },
  data() {
    return {
      // 地图实例
      instance: new Map(),
    };
  },
  mounted() {
    this.initMap();
  },
  methods: {
    /* 初始化openlayer地图 */
    initMap() {
      const map = new Map({
        target: `map-${this.mapId}`,
        controls: defaultControls({
          zoom: false,
          attribution: false,
          rotate: false,
        }),
        view: new View({
          center: [this.centerPoint.lat, this.centerPoint.lon], //中心点经纬度
          zoom: this.zoom, //图层缩放大小
          projection: "EPSG:4326",
        }),
        layers: [
          new TileLayer({
            source: new XYZ({
              url: "http://t{0-7}.tianditu.com/DataServer?x={x}&y={y}&l={z}&T=vec_c&tk=c691040443c68cda625755c5c3e2acc3",
              projection: "EPSG:4326",
            }),
          }),
          new TileLayer({
            source: new XYZ({
              url: "http://t{0-7}.tianditu.com/DataServer?x={x}&y={y}&l={z}&T=cva_c&tk=c691040443c68cda625755c5c3e2acc3",
              projection: "EPSG:4326",
            }),
          }),
        ],
      });
      // 图层点击事件
      map.on("singleclick", (e) => {
        const featureClick = map.forEachFeatureAtPixel(
          map.getEventPixel(e.originalEvent),
          (feature) => {
            return feature;
          }
        );
        // 如果有图层则返回图层点击
        if (featureClick) {
          this.$emit("feature-click", featureClick);
        } else {
          // 没有图层则返回地图点击事件
          this.$emit("map-click", e);
        }
      });
      // 图层双击事件
      map.on("dblclick", (e) => {
        const featureDblclick = map.forEachFeatureAtPixel(
          map.getEventPixel(e.originalEvent),
          (feature) => {
            return feature;
          }
        );
        if (featureDblclick) {
          this.$emit("feature-dblclick", featureDblclick);
        }
      });
      // 鼠标移入事件
      map.on("pointermove", (e) => {
        const feature = map.forEachFeatureAtPixel(
          map.getEventPixel(e.originalEvent),
          (mapFeature) => {
            return mapFeature;
          }
        );
        // 线、面要素不做鼠标移入样式修改
        if (feature) {
          if (feature.getGeometry()?.getType() === "Point") {
            map.getTargetElement().style.cursor = "pointer";
            this.$emit("pointer-move", feature);
          } else {
            map.getTargetElement().style.cursor = "auto";
          }
        } else {
          map.getTargetElement().style.cursor = "auto";
        }
      });
      this.instance.set("map", map);
      this.instance.set("overlay-list", []);
    },
    /**
     * @description: 切换当前位置
     * @param {Array} position 中心点位置
     * @param {number} zoom 地图缩放等级
     * @param {number} rotation 地图旋转角度
     * @param {number} duration 地图垂直深度
     * @return
     */
    changePosition(position, zoom, rotation, duration) {
      const map = this.instance.get("map");
      if (map) {
        map.getView().animate({
          center: position, // 地图中心点位
          zoom: zoom || 12, // 地图缩放等级
          rotation: rotation || undefined, // 旋转角度
          duration: duration || 1000, // 动画加载时间
        });
      }
    },

    /**
     * @description: 清空地图图层
     * @return
     */
    clearMapFeature() {
      const map = this.instance.get("map");
      const [layer] = map.getAllLayers().filter((item) => item.get("type"));
      map.removeLayer(layer);
    },

    /**
     * @description: 调整地图缩放等级
     * @return
     */
    changeZoom(type = 1, zoomStep) {
      const map = this.instance.get("map");
      if (map) {
        const step = zoomStep || 0.5;
        // 获取当前地图缩放等级
        const currentZoom = map.getView().getZoom();
        map.getView().animate({
          zoom: currentZoom + step * type,
        });
      }
    },

    /* 生命周期函数 */
    beforeDestroy() {
      this.instance.clear();
    },
  },
};
</script>

<style lang="scss" scoped>
.map-container {
  width: 100%;
  height: 100%;

  #map-0 {
    width: 100%;
    height: 100%;
  }

  #map-1 {
    width: 100%;
    height: 100%;
  }

  .control-container {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: absolute;
    left: 1rem;
    top: 1rem;

    i {
      padding: 0.1rem 0;
      font-size: 1.2rem;
    }
  }
}
</style>