bxztApp/packages/screen/src/views/RiskWarning/component/ChongqingMap.vue

<template>
  <div class="chongqing-map-container">
    <div ref="mapContainer" class="map-container"></div>
    <div v-if="loading" class="loading-overlay">
      <div class="loading-spinner"></div>
      <span class="loading-text">地图加载中...</span>
    </div>
    <div v-if="error" class="error-overlay">
      <span class="error-text">{{ error }}</span>
      <button class="retry-btn" @click="loadMapData">重试</button>
    </div>
    <TongnanCenterCardDialog
      ref="tongnanCenterCardDialog"
      :visible.sync="visible"
      :value="value"
      :z-index="zIndex"
      :width="width"
    ></TongnanCenterCardDialog>
  </div>
</template>

<script setup>
import { ref, onMounted, onUnmounted } from "vue";
import axios from "axios";
import { request } from "@/utils/request";
import TongnanCenterCardDialog from "@/views/RiskWarning/Dialog/tongnanCenterCardDialog.vue";

const mapContainer = ref(null);
const loading = ref(false);
const error = ref(null);
let mapInstance = null;
let geoJsonLayer = null;

// 定义 emits
const emit = defineEmits(["districtClick"]);

// 当前选中的区县
const selectedDistrict = ref(null);
let selectedLayer = null;

// 受影响对象数据
const affectedCountyData = ref({
  byName: {},
  sortedList: [],
});

// 获取受影响对象数据
const getAffectedCountyData = async () => {
  try {
    const res = await request({
      url: "snow-ops-platform/weather-warning/affected-county",
      method: "GET",
      params: {
        start: "2025-03-03 12:33:00",
        end: "2025-07-30 12:33:00",
      },
    });
    console.log("受影响对象数据:", res);
    if (res.code === "00000" && res.data) {
      // 统计各区县预警数量
      const warningStats = countWarningsByCounty(res.data);
      console.log("区县预警统计:", warningStats);
      affectedCountyData.value = warningStats;
      loadMapData();
    }
  } catch (error) {
    console.error("获取受影响对象数据失败:", error);
  }
};

// 确定主要预警颜色（出现最多的预警等级）
const getMainWarningColor = (levels) => {
  if (!levels || Object.keys(levels).length === 0) return "#1890ff"; // 默认蓝色

  // 预警等级优先级：红色 > 橙色 > 黄色 > 蓝色
  const priority = ["红色", "橙色", "黄色", "蓝色"];

  // 按数量排序
  const sortedLevels = Object.entries(levels)
    .map(([level, count]) => ({ level, count }))
    .sort((a, b) => b.count - a.count);

  // 如果有多个等级数量相同，按优先级排序
  const maxCount = sortedLevels[0].count;
  const maxLevels = sortedLevels.filter((item) => item.count === maxCount);

  if (maxLevels.length === 1) {
    return getColorByLevel(maxLevels[0].level);
  } else {
    // 按优先级选择
    for (const level of priority) {
      if (maxLevels.some((item) => item.level === level)) {
        return getColorByLevel(level);
      }
    }
    return getColorByLevel(maxLevels[0].level);
  }
};

// 根据预警等级获取颜色
const getColorByLevel = (level) => {
  const colorMap = {
    红色预警: "#FF4D4F",
    橙色预警: "#EC7345",
    黄色预警: "#FBC23C",
    蓝色预警: "#3799FC",
    未知: "#1890ff",
  };
  return colorMap[level] || "#1890ff";
};

// 统计各区县的预警数量（按预警等级区分）
const countWarningsByCounty = (data) => {
  if (!data || !Array.isArray(data)) return {};

  const stats = {};
  data.forEach((item) => {
    // 根据实际数据结构调整字段名
    const rawCountyName =
      item.countyName || item.name || item.qxmc || item.gl1Qxmc;
    const riskLevel =
      item.riskLevel || item.level || item.warningLevel || item.gl1Yjdj;

    // 简化区县名称
    const countyName = simplifyDistrictName(rawCountyName);

    if (countyName) {
      if (!stats[countyName]) {
        stats[countyName] = {
          total: 0,
          levels: {},
        };
      }

      // 统计总数
      stats[countyName].total += 1;

      // 按预警等级统计
      const level = riskLevel || "未知";
      if (stats[countyName].levels[level]) {
        stats[countyName].levels[level] += 1;
      } else {
        stats[countyName].levels[level] = 1;
      }
    }
  });

  // 合并渝北区和江北区为两江新区
  if (stats["渝北区"] || stats["江北区"]) {
    const yubeiData = stats["渝北区"] || {
      total: 0,
      levels: {},
    };
    const jiangbeiData = stats["江北区"] || {
      total: 0,
      levels: {},
    };

    // 合并总数
    const total = yubeiData.total + jiangbeiData.total;

    // 合并各等级预警数量
    const levels = { ...yubeiData.levels };
    Object.entries(jiangbeiData.levels).forEach(([level, count]) => {
      if (levels[level]) {
        levels[level] += count;
      } else {
        levels[level] = count;
      }
    });

    // 创建两江新区数据
    stats["两江新区"] = {
      total,
      levels,
    };

    // 删除渝北区和江北区
    delete stats["渝北区"];
    delete stats["江北区"];
  }

  // 转换为数组格式并按总数排序（数量从大到小）
  const sortedList = Object.entries(stats)
    .map(([name, data]) => ({
      name,
      total: data.total,
      levels: data.levels,
    }))
    .sort((a, b) => b.total - a.total);

  return {
    byName: stats, // 对象格式：{ 区县名: { total: 总数, levels: { 等级: 数量 } } }
    sortedList: sortedList, // 数组格式：[{ name: 区县名, total: 总数, levels: { 等级: 数量 } }]
  };
};

// 重庆地图 GeoJSON API 地址 - 使用最新版本
const GEOJSON_URL =
  "https://geo.datav.aliyun.com/areas_v3/bound/500000_full.json";

// 加载地图数据
const loadMapData = async () => {
  loading.value = true;
  error.value = null;

  try {
    // 初始化地图

    // 检查URL参数中是否有Map=dev
    const urlParams = new URLSearchParams(window.location.search);
    const isDev = urlParams.get("Map") === "dev";

    let geoJsonData;

    if (isDev) {
      // 本地测试用
      const response = await fetch(GEOJSON_URL);
      if (!response.ok) {
        throw new Error(`HTTP error! status: ${response.status}`);
      }
      geoJsonData = await response.json();
    } else {
      // 部署用
      const response = await axios.get("/aliyun-geo/bound/500000_full.json");
      geoJsonData = response.data;
      if (!geoJsonData) {
        throw new Error("地图数据为空");
      }
    }

    // // 处理行政区划变更：渝北区和江北区合并为两江新区
    processDistrictMerge(geoJsonData);
    initMap(geoJsonData);
  } catch (err) {
    console.error("加载地图数据失败:", err);
    error.value = "地图数据加载失败，请检查网络连接";
  } finally {
    loading.value = false;
  }
};

// 处理行政区划合并
const processDistrictMerge = (geoJsonData) => {
  if (!geoJsonData || !geoJsonData.features) return;

  // 查找渝北区和江北区的特征
  const yubeiIndex = geoJsonData.features.findIndex(
    (f) => f.properties && f.properties.name === "渝北区",
  );
  const jiangbeiIndex = geoJsonData.features.findIndex(
    (f) => f.properties && f.properties.name === "江北区",
  );

  // 如果两个区都存在，合并为两江新区
  if (yubeiIndex !== -1 && jiangbeiIndex !== -1) {
    const yubeiFeature = geoJsonData.features[yubeiIndex];
    const jiangbeiFeature = geoJsonData.features[jiangbeiIndex];

    // 创建两江新区的特征
    const liangjiangFeature = JSON.parse(JSON.stringify(yubeiFeature));
    liangjiangFeature.properties.name = "两江新区";
    liangjiangFeature.properties.adcode = "500006"; // 使用新的行政区划代码

    // 如果是 MultiPolygon，合并两个区的坐标
    if (
      yubeiFeature.geometry.type === "MultiPolygon" &&
      jiangbeiFeature.geometry.type === "MultiPolygon"
    ) {
      liangjiangFeature.geometry.coordinates = [
        ...yubeiFeature.geometry.coordinates,
        ...jiangbeiFeature.geometry.coordinates,
      ];
    } else if (
      yubeiFeature.geometry.type === "Polygon" &&
      jiangbeiFeature.geometry.type === "Polygon"
    ) {
      liangjiangFeature.geometry.type = "MultiPolygon";
      liangjiangFeature.geometry.coordinates = [
        [yubeiFeature.geometry.coordinates],
        [jiangbeiFeature.geometry.coordinates],
      ];
    }

    // 移除原来的两个区
    geoJsonData.features.splice(Math.max(yubeiIndex, jiangbeiIndex), 1);
    geoJsonData.features.splice(Math.min(yubeiIndex, jiangbeiIndex), 1);

    // 添加合并后的两江新区
    geoJsonData.features.push(liangjiangFeature);

    console.log("已合并渝北区和江北区为两江新区");
  }
};

// 计算区县中心点
const getCentroid = (coordinates) => {
  let sumLat = 0;
  let sumLng = 0;
  let count = 0;

  const processCoordinates = (coords) => {
    if (typeof coords[0] === "number") {
      // 单个坐标点 [lng, lat]
      sumLng += coords[0];
      sumLat += coords[1];
      count++;
    } else if (Array.isArray(coords[0])) {
      // 坐标数组
      coords.forEach(processCoordinates);
    }
  };

  processCoordinates(coordinates);

  return count > 0 ? [sumLat / count, sumLng / count] : null;
};

// 简化区县名称
const simplifyDistrictName = (name) => {
  const nameMap = {
    酉阳土家族苗族自治县: "酉阳县",
    秀山土家族苗族自治县: "秀山县",
    彭水苗族土家族自治县: "彭水县",
    石柱土家族自治县: "石柱县",
  };
  return nameMap[name] || name;
};

// 初始化地图
const initMap = (geoJsonData) => {
  if (!mapContainer.value) return;

  try {
    // 清除旧地图实例
    if (mapInstance) {
      mapInstance.remove();
    }

    // 创建地图实例
    mapInstance = new window.L.Map(mapContainer.value, {
      center: [29.563, 106.551], // 重庆中心坐标
      zoom: 6,
      minZoom: 6,
      maxZoom: 18,
      zoomControl: false,
      attributionControl: false,
    });

    // 添加瓦片图层 - 使用深色样式
    // const tileLayer = new window.L.TileLayer(
    //   "https://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}{r}.png",
    //   {
    //     attribution:
    //       '&copy; <a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a> contributors &copy; <a href="https://carto.com/attributions">CARTO</a>',
    //     subdomains: "abcd",
    //     maxZoom: 19,
    //   },
    // );
    // mapInstance.addLayer(tileLayer);

    // 添加 GeoJSON 图层
    geoJsonLayer = new window.L.GeoJSON(geoJsonData, {
      style: (feature) => {
        const districtName = feature.properties.name;
        let fillColor = "#132C44"; // 默认
        // 如果有预警统计数据，应用主要预警颜色
        if (
          affectedCountyData.value &&
          affectedCountyData.value.byName &&
          affectedCountyData.value.byName[districtName]
        ) {
          const districtData = affectedCountyData.value.byName[districtName];
          console.log(districtData.levels);
          fillColor = getMainWarningColor(districtData.levels);
        }

        return {
          fillColor: fillColor,
          weight: 1.5,
          opacity: 0.6,
          color: "#40a9ff",
          fillOpacity: 1,
        };
      },
      onEachFeature: (feature, layer) => {
        if (feature.properties && feature.properties.name) {
          // 区县点击事件
          // layer.on("click", (e) => {
          //   // 清除之前选中的样式
          //   if (selectedLayer) {
          //     selectedLayer.setStyle({
          //       fillColor: "#1890ff",
          //       fillOpacity: 0.15,
          //       weight: 1.5,
          //       color: "#40a9ff",
          //     });
          //   }
          //   // 设置当前选中样式
          //   layer.setStyle({
          //     fillColor: "#ff4d4f",
          //     fillOpacity: 0.6,
          //     weight: 2.5,
          //     color: "#ff7875",
          //   });
          //   selectedLayer = layer;
          //   selectedDistrict.value = feature.properties.name;
          //   // 触发事件
          //   emit("districtClick", {
          //     name: feature.properties.name,
          //     feature: feature,
          //     latlng: e.latlng,
          //   });
          //   // 平滑移动到点击位置
          //   mapInstance.panTo(e.latlng, { animate: true, duration: 0.5 });
          // });
          // 鼠标悬停效果
          // layer.on("mouseover", () => {
          //   layer.setStyle({
          //     fillColor: "#1890ff",
          //     fillOpacity: 0.4,
          //     weight: 2,
          //     color: "#69c0ff",
          //   });
          // });
          // layer.on("mouseout", () => {
          //   layer.setStyle({
          //     fillColor: "#1890ff",
          //     fillOpacity: 0.15,
          //     weight: 1.5,
          //     color: "#40a9ff",
          //   });
          // });
          // 添加 popup
          // layer.bindPopup(`<div class="map-popup">
          //   <strong>${feature.properties.name}</strong>
          // </div>`);
        }
      },
    });

    mapInstance.addLayer(geoJsonLayer);

    // 添加区县标签
    geoJsonData.features.forEach((feature) => {
      if (feature.properties && feature.properties.name) {
        let centroid;

        if (feature.geometry.type === "Polygon") {
          centroid = getCentroid(feature.geometry.coordinates);
        } else if (feature.geometry.type === "MultiPolygon") {
          // 取第一个多边形的中心
          centroid = getCentroid(feature.geometry.coordinates[0]);
        }

        if (centroid) {
          const displayName = simplifyDistrictName(feature.properties.name);
          const label = window.L.divIcon({
            className: "district-label",
            html: `<div class="label-content">${displayName}</div>`,
            iconSize: [80, 30],
            iconAnchor: [40, 15],
          });

          const marker = window.L.marker(centroid, { icon: label });
          // marker.on("click", (e) => {
          //   // 清除之前选中的样式
          //   if (selectedLayer) {
          //     selectedLayer.setStyle({
          //       fillColor: "#1E3A8A",
          //       fillOpacity: 0.3,
          //       weight: 2,
          //     });
          //   }

          //   // 找到对应的区县图层并设置样式
          //   geoJsonLayer.eachLayer((layer) => {
          //     if (
          //       layer.feature &&
          //       layer.feature.properties.name === feature.properties.name
          //     ) {
          //       layer.setStyle({
          //         fillColor: "#ff4d4f",
          //         fillOpacity: 0.6,
          //         weight: 2.5,
          //         color: "#ff7875",
          //       });
          //       selectedLayer = layer;
          //       selectedDistrict.value = feature.properties.name;
          //     }
          //   });

          //   // 触发事件
          //   emit("districtClick", {
          //     name: feature.properties.name,
          //     feature: feature,
          //     latlng: e.latlng,
          //   });

          //   // 平滑移动到点击位置
          //   mapInstance.panTo(e.latlng, { animate: true, duration: 0.5 });
          // });
          mapInstance.addLayer(marker);
        }
      }
    });

    // 调整视图以适应重庆边界
    mapInstance.fitBounds(geoJsonLayer.getBounds());
  } catch (err) {
    console.error("初始化地图失败:", err);
    error.value = "地图初始化失败";
  }
};

// 组件挂载时加载地图
onMounted(() => {
  // 获取受影响对象数据
  getAffectedCountyData();

  // 检查 Leaflet 是否已加载
  if (typeof window.L === "undefined") {
    // 动态加载 Leaflet CSS 和 JS
    const link = document.createElement("link");
    link.rel = "stylesheet";
    link.href = "https://unpkg.com/leaflet@1.9.4/dist/leaflet.css";
    link.integrity = "sha256-p4NxAoJBhIIN+hmNHrzRCf9tD/miZyoHS5obTRR9BMY=";
    link.crossOrigin = "";
    document.head.appendChild(link);

    const script = document.createElement("script");
    script.src = "https://unpkg.com/leaflet@1.9.4/dist/leaflet.js";
    script.integrity = "sha256-20nQCchB9co0qIjJZRGuk2/Z9VM+kNiyxNV1lvTlZBo=";
    script.crossOrigin = "";
    script.onload = loadMapData;
    document.head.appendChild(script);
  } else {
    loadMapData();
  }
});

// 组件卸载时清理资源
onUnmounted(() => {
  if (mapInstance) {
    mapInstance.remove();
    mapInstance = null;
  }
});
</script>

<style lang="scss">
// 区县标签样式（需要全局样式，因为 Leaflet 动态添加元素）
.district-label {
  background: transparent !important;
  border: none !important;

  .label-content {
    background: transparent;
    color: #fff;
    padding: vw(4) vw(8);
    border-radius: vw(2);
    font-weight: 500;
    text-align: center;
    white-space: nowrap;
    text-shadow:
      0 1px 3px rgba(0, 0, 0, 0.8),
      0 0 2px rgba(0, 0, 0, 0.5);
    letter-spacing: 0.5px;
    cursor: pointer;
    width: fit-content;
    transition: all 0.3s;

    &:hover {
      color: #40a9ff;
      text-shadow: 0 0 10px rgba(64, 169, 255, 0.8);
      transform: scale(1.05);
    }
  }
}
</style>

<style lang="scss" scoped>
// 视频屏幕自适应 - 基于视口宽度动态调整
@function vw($px) {
  @return calc($px / 1920 * 100vw);
}

.chongqing-map-container {
  width: 100%;
  height: 100%;
  position: relative;
}

.map-container {
  width: 100%;
  height: 100%;
  background: #0f1c2e;
}

.loading-overlay,
.error-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.7);
  z-index: 1000;
}

.loading-spinner {
  width: vw(40);
  height: vw(40);
  border: vw(4) solid #3b82f6;
  border-top: vw(4) solid transparent;
  border-radius: 50%;
  animation: spin 1s linear infinite;
  margin-bottom: vw(10);
}

.loading-text {
  color: #fff;
  font-size: vw(14);
}

.error-text {
  color: #ff6b6b;
  font-size: vw(14);
  margin-bottom: vw(10);
}

.retry-btn {
  background: #3b82f6;
  color: white;
  border: none;
  padding: vw(8) vw(16);
  border-radius: vw(4);
  cursor: pointer;
  font-size: vw(12);

  &:hover {
    background: #2563eb;
  }
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }
  100% {
    transform: rotate(360deg);
  }
}

// Leaflet 地图样式覆盖
:deep(.leaflet-container) {
  background: #0f1c2e !important;

  .leaflet-popup-content-wrapper {
    background: rgba(24, 144, 255, 0.95);
    border-radius: vw(4);
    padding: vw(6) vw(12);
    min-width: vw(80);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.5);

    .map-popup {
      color: #fff;
      font-size: vw(12);
      text-align: center;
      margin: 0;
      padding: 0;
      font-weight: 500;
    }
  }

  .leaflet-popup-tip {
    background: rgba(24, 144, 255, 0.95);
  }

  .leaflet-popup-content {
    width: max-content !important;
    margin: vw(10) 10px vw(10) 0;
    line-height: 1.3;
  }
}

// 区县高亮样式
:deep(.leaflet-interactive) {
  transition: all 0.3s;
  cursor: pointer;
}
</style>