import { useRef } from "react";
import { createObliquePhotography } from "~/pages/Container/Map/js/mapUtils";
import useMapMethods from "./mapMethods";
import usePointClickEvent from "./pointClickEvent";

const Cesium = window.Cesium;

export default function useInitMap() {
  // 页面和地图工具共用同一个 Cesium 引用，避免内外各维护一份实例。
  const viewer = useRef(null);
  const mapMethodsValue = useMapMethods(viewer);
  // Context 下游仍按 ref.current 调用地图方法，因此保留原有数据结构。
  const mapMethods = useRef(mapMethodsValue);
  mapMethods.current = mapMethodsValue;
  // 点位点击处理集合：替代原 PointClickEvent class 实例，负责弹窗和层级进入。
  const pointClickEvent = usePointClickEvent(viewer, mapMethodsValue);

  // 获取当前 Cesium 实例，减少内部方法对 ref 结构的重复感知。
  const getViewer = () => viewer.current;

  // 倾斜摄影
  const initObliquePhotography = () => {
    getViewer().scene.globe.depthTestAgainstTerrain = true;
    Cesium.ExperimentalFeatures.enableModelExperimental = true;
    createObliquePhotography(
      "http://192.168.192.215:8021/ware/upload/%E6%9B%B9%E5%A6%83%E7%94%B8%E6%B8%AF%E4%B8%9C/%E6%9B%B9%E5%A6%83%E7%94%B8%E6%B8%AF%E4%B8%9C/merge_tile.json",
      getViewer(),
    );
    createObliquePhotography(
      "http://192.168.192.215:8021/ware/upload/%E6%9B%B9%E5%A6%83%E7%94%B8%E6%B8%AF%E8%A5%BF/%E6%9B%B9%E5%A6%83%E7%94%B8%E6%B8%AF%E8%A5%BF/merge_tile.json",
      getViewer(),
    );
    createObliquePhotography(
      "http://192.168.192.215:8021/ware/upload/qhdxys/merge_tile.json",
      getViewer(),
    );
    createObliquePhotography(
      "http://192.168.192.215:8021/ware/upload/qhdgysh/merge_tile.json",
      getViewer(),
    );
    createObliquePhotography(
      "http://192.168.192.215:8021/ware/upload/%E6%B2%A7%E5%B7%9E%E6%B8%AF%E8%A5%BF/%E6%B2%A7%E5%B7%9E%E6%B8%AF%E8%A5%BF/merge_tile.json",
      getViewer(),
    );
    createObliquePhotography(
      "http://192.168.192.215:8021/ware/upload/%E6%B2%A7%E5%B7%9E%E6%B8%AF%E4%B8%9C/%E6%B2%A7%E5%B7%9E%E6%B8%AF%E4%B8%9C/merge_tile.json",
      getViewer(),
    );
  };

  // 注册点击事件
  const registerClickEvent = () => {
    getViewer().cesiumWidget.screenSpaceEventHandler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK);
    getViewer().cesiumWidget.screenSpaceEventHandler.removeInputAction(Cesium.ScreenSpaceEventType.LEFT_CLICK);
    const screenSpaceEventHandler = new Cesium.ScreenSpaceEventHandler(getViewer().scene.canvas);
    screenSpaceEventHandler.setInputAction((movement) => {
      const pick = getViewer().scene.pick(movement.position);
      if (Cesium.defined(pick) && pick.id?.id) {
        pointClickEvent.pointClickEvent(pick.id);
      }
      else {
        pointClickEvent.closePopup();
      }
    }, Cesium.ScreenSpaceEventType.LEFT_CLICK);
  };

  // 初始化地图
  const initMap = () => {
    const tianDiTuKey = "06494bcf2d4b66df7f3c586cc65af0cb";
    const subdomains = ["0", "1", "2", "3", "4", "5", "6", "7"];
    viewer.current = new Cesium.Viewer("cesiumContainer", {
      // terrainProvider: Cesium.createWorldTerrain()
      animation: false, // 动画
      homeButton: true, // home键
      geocoder: true, // 地址编码
      baseLayerPicker: false, // 图层选择控件
      timeline: false, // 时间轴
      fullscreenButton: true, // 全屏显示
      infoBox: true, // 点击要素之后浮窗
      sceneModePicker: true, // 投影方式  三维/二维
      navigationInstructionsInitiallyVisible: false, // 导航指令
      navigationHelpButton: false, // 帮助信息
      selectionIndicator: false, // 选择
      imageryProvider: new Cesium.WebMapTileServiceImageryProvider({
        // 影像底图
        url:
          `https://t{s}.tianditu.gov.cn/img_w/wmts?service=wmts&request=GetTile&version=1.0.0&LAYER=img&tileMatrixSet=w&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}&style=default&format=tiles&tk=${
            tianDiTuKey}`,
        subdomains,
        layer: "tdtImgLayer",
        style: "default",
        format: "image/jpeg",
        tileMatrixSetID: "GoogleMapsCompatible", // 使用谷歌的瓦片切片方式
        show: true,
      }),
    });
    // 调整 Cesium 默认相机操作：左键旋转地图，右键调整俯仰角，实现从平面俯视到立体视角的切换。
    const cameraController = getViewer().scene.screenSpaceCameraController;
    cameraController.rotateEventTypes = Cesium.CameraEventType.LEFT_DRAG;
    cameraController.tiltEventTypes = [
      Cesium.CameraEventType.RIGHT_DRAG,
      Cesium.CameraEventType.MIDDLE_DRAG,
      Cesium.CameraEventType.PINCH,
    ];
    cameraController.zoomEventTypes = [
      Cesium.CameraEventType.WHEEL,
      Cesium.CameraEventType.PINCH,
    ];
    getViewer()._cesiumWidget._creditContainer.style.display = "none"; // 隐藏cesium ion
    getViewer().imageryLayers.addImageryProvider(
      new Cesium.WebMapTileServiceImageryProvider({
        // 影像注记
        url:
          `https://t{s}.tianditu.gov.cn/cia_w/wmts?service=wmts&request=GetTile&version=1.0.0&LAYER=cia&tileMatrixSet=w&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}&style=default.jpg&tk=${
            tianDiTuKey}`,
        subdomains,
        layer: "tdtCiaLayer",
        style: "default",
        format: "image/jpeg",
        tileMatrixSetID: "GoogleMapsCompatible",
        show: true,
      }),
    );
    initObliquePhotography();
    registerClickEvent();
    return { mapMethods: mapMethods.current, viewer: getViewer() };
  };

  // 外部入口进入港口：只有港口标识、名称和有效坐标齐全时才进入，避免 Cesium 接收到无效坐标。
  const externalEntryPort = (data) => {
    const id = data.id || data.portId;
    const name = data.name || data.portName;
    const longitude = data.position?.x ?? data.longitude ?? data.lng ?? data.x;
    const latitude = data.position?.y ?? data.latitude ?? data.lat ?? data.y;
    // 空字符串会被 Number 转成 0，需要先排除空值，再判断是否为有效数字。
    const hasCoordinate = value => value !== "" && value !== null && value !== undefined;
    const hasValidPosition
      = hasCoordinate(longitude)
        && hasCoordinate(latitude)
        && Number.isFinite(Number(longitude))
        && Number.isFinite(Number(latitude));

    if (!id || !name || !hasValidPosition)
      return false;

    pointClickEvent.pointClickEvent({
      monitorItems: {
        data: {
          ...data,
          id,
          name,
          corpinfoId: data.corpinfoId,
          markType: "港口",
          isExternalEntry: "1",
          position: { x: Number(longitude), y: Number(latitude) },
        },
      },
    });
    return true;
  };

  return {
    viewer,
    mapMethods,
    initMap,
    externalEntryPort,
  };
}