// src/utils/CesiumInstance.js
import * as Cesium from 'cesium';
import { Cartesian3, Ion, Math as CesiumMath, Terrain, Viewer, Color, Entity } from 'cesium';
import AmapMercatorTilingScheme from '@/utils/cesium/AmapMercatorTilingScheme';

window.CESIUM_BASE_URL = '/cesiumPu';

const TDT_Token = 'c6eea7dad4fa1e2d1e32ec0e7c9735db';
// 天地图地图
const TDT_IMG_C =
  'https://{s}.tianditu.gov.cn/img_c/wmts?service=wmts&request=GetTile&version=1.0.0' +
  '&LAYER=img&tileMatrixSet=c&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}' +
  '&style=default&format=tiles&tk=' +
  TDT_Token;
// 天地图注记
const TDT_ZJ =
  'https://{s}.tianditu.gov.cn/cia_c/wmts?service=wmts&request=GetTile&version=1.0.0' +
  '&LAYER=cia&tileMatrixSet=c&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}' +
  '&style=default&format=tiles&tk=' +
  TDT_Token;
// 标准地图注记
const TID_STAND =
  'https://{s}.tianditu.gov.cn/vec_w/wmts?service=wmts&request=GetTile&version=1.0.0' +
  '&LAYER=img&tileMatrixSet=c&TileMatrix={TileMatrix}&TileRow={TileRow}&TileCol={TileCol}' +
  '&style=default&format=tiles&tk=' +
  TDT_Token;
// 天地图图层变量
const imageryProvider_tdt = new Cesium.WebMapTileServiceImageryProvider({
  url: TDT_IMG_C,
  layer: 'tdtImg_c',
  style: 'default',
  format: 'tiles',
  tileMatrixSetID: 'c',
  subdomains: ['t0', 't1', 't2', 't3', 't4', 't5', 't6', 't7'],
  tilingScheme: new Cesium.GeographicTilingScheme(),
  tileMatrixLabels: [
    '1',
    '2',
    '3',
    '4',
    '5',
    '6',
    '7',
    '8',
    '9',
    '10',
    '11',
    '12',
    '13',
    '14',
    '15',
    '16',
    '17',
    '18',
    '19',
  ],
  maximumLevel: 17,
});
// 标准地图图层变量
const imageryProvider_stand = new Cesium.UrlTemplateImageryProvider({
  url: 'https://t{s}.tianditu.gov.cn/DataServer?T=vec_w&x={x}&y={y}&l={z}&tk=e45274b0235bb913eceb393aabbf9c9c',
  subdomains: ['0', '1', '2', '3', '4', '5', '6', '7'],
  // format: 'image/jpeg',
  // show: true,
  maximumLevel: 18,
  credit: 'stand_tc',
});
// 标准地图图层注解
const imageryProvider_standZh = new Cesium.UrlTemplateImageryProvider({
  url: 'https://t{s}.tianditu.gov.cn/DataServer?T=cva_w&x={x}&y={y}&l={z}&tk=e45274b0235bb913eceb393aabbf9c9c',
  subdomains: ['0', '1', '2', '3', '4', '5', '6', '7'],
  maximumLevel: 18,
  credit: 'stand_zj',
});
// 天地图中文注记加载
const annotation = new Cesium.WebMapTileServiceImageryProvider({
  url: TDT_ZJ,
  layer: 'tdtZwImg_c',
  style: 'default',
  format: 'tiles',
  tileMatrixSetID: 'c',
  subdomains: ['t0', 't1', 't2', 't3', 't4', 't5', 't6', 't7'],
  tilingScheme: new Cesium.GeographicTilingScheme(),
  tileMatrixLabels: [
    '1',
    '2',
    '3',
    '4',
    '5',
    '6',
    '7',
    '8',
    '9',
    '10',
    '11',
    '12',
    '13',
    '14',
    '15',
    '16',
    '17',
    '18',
    '19',
  ],
  maximumLevel: 50,
});

// 高德地图图层变量
//高德矢量地图数据图层，自带注记
const imageryProvider_ammapSL = new Cesium.UrlTemplateImageryProvider({
  url: 'https://webrd02.is.autonavi.com/appmaptile?lang=zh_cn&size=1&scale=1&style=8&x={x}&y={y}&z={z}',
  layer: 'tdtVecBasicLayer',
  style: 'default',
  format: 'image/png',
  tileMatrixSetID: 'GoogleMapsCompatible',
  subdomains: ['0', '1', '2', '3', '4', '5', '6', '7'],
  maximumLevel: 18,
  tilingScheme: new AmapMercatorTilingScheme(),
  credit: 'amap_SL',
});

//高德影像地图数据图层，自带注记
const imageryProvider_ammap = new Cesium.UrlTemplateImageryProvider({
  url: 'https://webst02.is.autonavi.com/appmaptile?style=6&x={x}&y={y}&z={z}',
  layer: 'tdtVecBasicLayer',
  style: 'default',
  format: 'image/png',
  tileMatrixSetID: 'GoogleMapsCompatible',
  subdomains: ['0', '1', '2', '3', '4', '5', '6', '7'],
  maximumLevel: 18,
  tilingScheme: new AmapMercatorTilingScheme(),
  credit: 'amap_stand',
});
// 高德影像地图数据图层，注记
const imageryProvider_ammapBz = new Cesium.UrlTemplateImageryProvider({
  url: 'https://webst02.is.autonavi.com/appmaptile?x={x}&y={y}&z={z}&lang=zh_cn&size=1&scale=1&style=8',
  tilingScheme: new AmapMercatorTilingScheme(),
  minimumLevel: 3,
});

Cesium.Ion.defaultAccessToken =
  'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiJkMzg4MDk5YS05MWEzLTQ3NTYtOTYzNS04Yzk4MjU2MjI5N2YiLCJpZCI6MjE3OTM4LCJpYXQiOjE3MTY3NzIzOTR9.q1rzR7SRtIulQKTtJuv5HPUbp1av5E9RaOe-6voPDGc';

const cesiumToken =
  'eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJqdGkiOiJkYTZlNGNlYS01NTU1LTQ1MGEtYmNlZS0yNTE2NDk5YWM2MjEiLCJpZCI6MTc5Njk2LCJpYXQiOjE3MDA1NDcwMjV9.qcl4AH2731cfFd0-I1ZLUINPXqvglLkDFD-UGR2zU5M';
Cesium.Ion.defaultAccessToken = cesiumToken;
Cesium.Camera.DEFAULT_VIEW_FACTOR = -0.45;
// 西南东北，默认显示中国
Cesium.Camera.DEFAULT_VIEW_RECTANGLE = Cesium.Rectangle.fromDegrees(66, 4, 135, 53.55);

class CesiumInstance {
  constructor(containerId) {
    if (!CesiumInstance.instance) {
      const viewer = new Cesium.Viewer(containerId, {
        timeline: false, // 时间线
        animation: false, // 动画控制
        geocoder: false, // 搜索按钮编码器
        baseLayerPicker: false, // 基础图层选择器
        navigationHelpButton: false, // 帮助按钮
        fullscreenButton: false, // 全屏按钮
        homeButton: false, // 初视角按钮
        sceneModePicker: false, // 投影方式选择器
        selectionIndicator: false, // 禁用选择指示器
        infoBox: false, // 禁用信息框
        shouldAnimate: true,
      });
      viewer.imageryLayers.removeAll();
      viewer.cesiumWidget.creditContainer.style.display = 'none';
      viewer.cesiumWidget.screenSpaceEventHandler.removeInputAction(
        Cesium.ScreenSpaceEventType.LEFT_DOUBLE_CLICK
      ); // 禁用双击
      viewer.scene.screenSpaceCameraController.minimumZoomDistance = 100;
      viewer.scene.screenSpaceCameraController.maximumZoomDistance = 4500000;
      viewer.imageryLayers.addImageryProvider(imageryProvider_ammap);
      window.$viewer = viewer;
      this.viewer = viewer;
      CesiumInstance.instance = this; // 保存单例实例
    }
    return CesiumInstance.instance;
  }

  getViewer() {
    return this.viewer;
  }
}

export default CesiumInstance;