import calculate from '@/utils/map/calculate';
import gridMapUtil from '@/utils/map/grid';
import { map, onMapMounted } from '@/utils/map/index_old';
import { useCloned } from '@vueuse/core';

/**
 * 卫星遥测网格管理
 */
export class SatelliteGrid {
  constructor(name) {
    this.name = name;
  }
  // 默认地图网格相关对象
  mapViews;

  gridDataDetail;

  infoMap = new Map();

  // 地图网格对象Map结构，存储对应key下的网格对象、网格坐标信息
  mapViewsMap = new Map();

  // 网格数据Map结构，存储对应key下的网格监测数据信息
  gridDataDetailMap = new Map();

  districtPolygon;

  firstEvent;

  events = new Map();

  // 绘制区县边界
  drawDistrict(districtName, isNew) {
    onMapMounted(() => {
      if (this.districtPolygon && !isNew) {
        map.remove(this.districtPolygon);
        map.add(this.districtPolygon);
      } else {
        // eslint-disable-next-line no-undef
        var district = new AMap.DistrictSearch({
          extensions: 'all', //返回行政区边界坐标等具体信息
          level: 'district' //设置查询行政区级别为区
        });
        district.search(districtName, (status, result) => {
          var bounds = result.districtList[0].boundaries; //获取朝阳区的边界信息
          if (bounds) {
            for (var i = 0; i < bounds.length; i++) {
              //生成行政区划 polygon
              // eslint-disable-next-line no-undef
              this.districtPolygon = new AMap.Polygon({
                map: map, //显示该覆盖物的地图对象
                strokeWeight: 2, //轮廓线宽度
                path: bounds[i], //多边形轮廓线的节点坐标数组
                fillOpacity: 0, //多边形填充透明度
                fillColor: '#CCF3FF', //多边形填充颜色
                // strokeColor: '#ffffff' //线条颜色
                strokeColor: '#0552f7', //线条颜色
                zIndex: 9
              });
            }
            map.setFitView(); //将覆盖物调整到合适视野
          }
        });
      }
    });
  }

  clearAll(mapViews) {
    if (mapViews) {
      if (typeof mapViews.gridViews === 'object') {
        map.remove(mapViews.gridViews);
      }
    }
    this.clearText(mapViews);
  }

  clearText(mapViews) {
    if (mapViews) {
      if (typeof mapViews.dataTxt === 'object') {
        map.remove(mapViews.dataTxt);
      }
      if (typeof mapViews.dataLayer === 'object') {
        map.remove(mapViews.dataLayer);
      }
      if (typeof mapViews.rankTxt === 'object') {
        map.remove(mapViews.rankTxt);
      }
      if (typeof mapViews.rankLayer === 'object') {
        map.remove(mapViews.rankLayer);
      }
    }
  }

  // 绘制网格线
  drawPolyline(gridInfo, event) {
    this.firstEvent = event;
    // 绘制网格
    const points = gridInfo.map((v) => {
      return calculate.wgs84_To_Gcj02(v.longitude, v.latitude);
      // return [v.longitude, v.latitude];
    });
    // const gridPoints = gridMapUtil.parseGridPoint(points);
    // console.log('gridPoints:', gridPoints);

    const gridPoints = gridInfo.map((v, i) => {
      return {
        path: [
          calculate.wgs84_To_Gcj02(v.point1Lon, v.point1Lat),
          calculate.wgs84_To_Gcj02(v.point2Lon, v.point2Lat),
          calculate.wgs84_To_Gcj02(v.point3Lon, v.point3Lat),
          calculate.wgs84_To_Gcj02(v.point4Lon, v.point4Lat)
          // [v.point1Lon, v.point1Lat],
          // [v.point2Lon, v.point2Lat],
          // [v.point3Lon, v.point3Lat],
          // [v.point4Lon, v.point4Lat]
        ]
          // eslint-disable-next-line no-undef
          .map((d) => new AMap.LngLat(d[0], d[1])),
        extData: {
          centerPoint: points[i],
          // gridPoints,
          gridCell: v
        }
      };
    });
    const gridViews = gridMapUtil.drawPolylines({ points: gridPoints, event });
    return { gridViews, gridPoints, points };
  }

  // 绘制监测数据值
  drawDataText(points, gridDataDetail, textViews, isCustomColor, useColor) {
    const data = gridDataDetail.map((v, i) => {
      return {
        lnglat_GD: points[i],
        // data: v.pm25 ? (v.pm25 + 'μg/m³') : ''
        data: v.pm25 ? v.pm25 : ''
      };
    });
    // return gridMapUtil.drawGridTextLabel(data, textViews, labelsLayer, 'bottom');
    return gridMapUtil.drawGridText({
      points: data,
      textViews,
      anchor: 'top-center',
      type: 'data',
      isCustomColor,
      useColor
    });
  }

  // 绘制监测数据排名文本
  drawRankText(points, gridDataDetail, textViews, labelsLayer) {
    const data = gridDataDetail.map((v, i) => {
      return {
        lnglat_GD: points[i],
        // data: v.pm25 ? ('排名: ' + v.rank) : ''
        data: v.pm25 ? v.rank : ''
      };
    });
    // return gridMapUtil.drawGridTextLabel(data, textViews, labelsLayer, 'top');
    return gridMapUtil.drawGridText({
      points: data,
      textViews,
      anchor: 'bottom-center',
      type: 'rank'
    });
  }

  // 绘制监测数据值对应网格颜色
  drawColor({
    gridViews,
    points,
    gridDataDetail,
    lastGridViews,
    customColor,
    style
  }) {
    // 根据数据筛选有数据的网格
    const res = [];
    // 以及对应的中心点坐标
    const pointsRes = [];
    // 网格按照其编号升序排列，然后计算编号和下表的偏差值
    const offset = gridViews[0].getExtData().gridCell.cellIndex - 0;

    gridDataDetail.forEach((d) => {
      // 根据数据关联的网格编号，找到对应网格
      const cellId = d.cellId;
      if (cellId > gridViews.length) {
        throw Error(
          '遥测数据的网格索引编号超出网格组范围，数据和网格组可能不对应'
        );
      }
      res.push(gridViews[cellId - offset]);
      pointsRes.push(points[cellId - offset]);
    });

    // 根据绘制颜色方式绘制网格
    let resGridViews;
    if (customColor) {
      resGridViews = gridMapUtil.drawGridColorCustom(
        res,
        gridDataDetail,
        style.opacity
      );
    } else {
      resGridViews = gridMapUtil.drawGridColor(
        res,
        gridDataDetail,
        'PM25',
        style
      );
    }

    if (lastGridViews) {
      map.remove(lastGridViews);
    }
    map.add(resGridViews);
    // map.setFitView(resGridViews);

    return { resGridViews, pointsRes };
  }

  // 卫星网格配置准备
  gridPrepare(gridInfo, event) {
    // clearText(mapViews);
    this.clearAll(this.mapViews);
    this.mapViews = this.drawPolyline(gridInfo, event);
  }

  // 绘制网格遥感数据值和网格颜色
  drawGrid({
    mapViews,
    data,
    grid = { useCustomColor: false, style: { opacity: 1, zIndex: 11 } },
    dataTxt = { isShow: false, useCustomColor: false, useColor: false },
    rankTxt = { isShow: false }
  }) {
    const _mapViews = mapViews ? mapViews : this.mapViews;
    this.gridDataDetail = data;
    const { resGridViews, pointsRes } = this.drawColor({
      gridViews: _mapViews.gridViews,
      points: _mapViews.points,
      gridDataDetail: data,
      lastGridViews: _mapViews.lastGridViews,
      customColor: grid.useCustomColor,
      style: grid.style
    });
    _mapViews.lastGridViews = resGridViews;
    _mapViews.lastPoints = pointsRes;

    // 数据标记
    const { textViews: dtv } = this.drawDataText(
      _mapViews.lastPoints,
      data,
      _mapViews.dataTxt,
      dataTxt.useCustomColor,
      dataTxt.useColor
    );
    _mapViews.dataTxt = dtv;

    const { textViews: rtv } = this.drawRankText(
      _mapViews.lastPoints,
      data,
      _mapViews.rankTxt,
      _mapViews.rankLayer
    );
    _mapViews.rankTxt = rtv;

    if (dataTxt.isShow) {
      map.add(_mapViews.dataTxt);
    }

    if (rankTxt.isShow) {
      map.add(_mapViews.rankTxt);
    }
  }

  /**
   * 根据tag标签，展示已有的网格或绘制一组新的网格
   * @param {Object} param0 {
   * tag, 标签
   * gridDataDetail, 网格数据数组
   * useCustomColor, 是否使用对比色
   * opacity, 透明度，取值[0, 1]
   * zIndex, 地图显示层级
   * showDataTxt, 是否显示数据文本
   * showRankTxt, 是否显示排名文本
   * extData, 自定义额外信息对象
   * }
   */
  drawTagGrid({ tag, data, grid, dataTxt, rankTxt, extData }) {
    if (!this.mapViewsMap.has(tag)) {
      const newMapViews = this._createNewMapViews({ extData });
      this.infoMap.set(tag, extData);
      this.mapViewsMap.set(tag, newMapViews);
      this.gridDataDetailMap.set(tag, data);
    }
    const _mapViews = this.mapViewsMap.get(tag);
    this.drawGrid({
      mapViews: _mapViews,
      data,
      grid,
      dataTxt,
      rankTxt
    });
  }

  // 调整各类地图覆盖物的可见性
  changeVisibility({ tags = [], showGridViews, showDataTxt, showRankTxt }) {
    let { _mapViewsList } = this._getMapViews(...tags);

    if (showGridViews != undefined) {
      if (showGridViews) {
        // map.add(this.mapViews.lastGridViews);
        _mapViewsList.forEach((v) => {
          if (v.lastGridViews) map.add(v.lastGridViews);
        });
      } else {
        // map.remove(this.mapViews.lastGridViews);
        _mapViewsList.forEach((v) => {
          if (v.lastGridViews) map.remove(v.lastGridViews);
        });
      }
    }
    if (showDataTxt != undefined) {
      if (showDataTxt) {
        // map.add(this.mapViews.dataTxt);
        _mapViewsList.forEach((v) => {
          if (v.dataTxt) map.add(v.dataTxt);
        });
      } else {
        // map.remove(this.mapViews.dataTxt);
        _mapViewsList.forEach((v) => {
          if (v.dataTxt) map.remove(v.dataTxt);
        });
      }
    }
    if (showRankTxt != undefined) {
      if (showRankTxt) {
        // map.add(this.mapViews.rankTxt);
        _mapViewsList.forEach((v) => {
          if (v.rankTxt) map.add(v.rankTxt);
        });
      } else {
        // map.remove(this.mapViews.rankTxt);
        _mapViewsList.forEach((v) => {
          if (v.rankTxt) map.remove(v.rankTxt);
        });
      }
    }
  }

  changeGridOpacity({ tag, isOpacity, opacityValue }) {
    let { _mapViewsList } = tag ? this._getMapViews(tag) : this._getMapViews();

    _mapViewsList.forEach((v) => {
      if (v.lastGridViews) {
        v.lastGridViews.forEach((e) => {
          e.setOptions({
            fillOpacity:
              typeof opacityValue === 'number'
                ? opacityValue
                : isOpacity
                  ? 0.1
                  : 0.7
          });
        });
      }
    });
  }

  changeGridColor({
    tag,
    useCustomColor,
    opacity,
    zIndex,
    isMixGridHighlight
  }) {
    let { _mapViewsList, _gridDataDetailList } = this._getMapViews(tag);
    if (_mapViewsList.length == _gridDataDetailList.length) {
      _mapViewsList.forEach((v, i) => {
        if (v.lastGridViews) {
          const lastGridDataDetail = _gridDataDetailList[i];
          if (useCustomColor) {
            gridMapUtil.drawGridColorCustom(
              v.lastGridViews,
              lastGridDataDetail,
              { opacity, zIndex }
            );
          } else {
            gridMapUtil.drawGridColor(
              v.lastGridViews,
              lastGridDataDetail,
              'PM25',
              { opacity, zIndex, isMixGridHighlight }
            );
          }
        }
      });
    }
  }

  setGridEvent(name, event) {
    if (!this.events.has(name)) {
      this.events.set(name, []);
    }
    const list = this.events.get(name);
    if (list.length > 0) {
      const lastEvent = list[list.length - 1];
      this.mapViews.gridViews.forEach((polygon) => {
        polygon.off(name, lastEvent);
      });
    }
    this.events.get(name).push(event);
    this.mapViews.gridViews.forEach((polygon) => {
      polygon.on(name, event);
    });
  }

  goBackGridEvent(name) {
    if (this.events.has(name)) {
      const eventList = this.events.get(name);
      //先移除原有的事件
      const lastEvent = eventList.pop();
      this.mapViews.gridViews.forEach((polygon) => {
        polygon.off(name, lastEvent);
      });
      //获取上一个事件
      const event = eventList.pop();
      this.mapViews.gridViews.forEach((polygon) => {
        polygon.on(name, event);
      });
    }
  }

  /**
   * 将多组网格进行融合
   * 重叠的网格进行监测数据均值计算并重新计算对应颜色，形成新的一组融合网格
   * @param {...String} tags 需要融合的网格标签，当为空时，默认融合所有网格
   */
  mixGrid(tags) {
    tags.sort((a, b) => {
      return a < b ? -1 : 1;
    });
    const mixTag = tags.join('-');
    if (this.mapViewsMap.has(mixTag)) {
      this.changeVisibility({
        tag: mixTag,
        showGridViews: true
      });
    } else {
      // const mixMapViews = this._createNewMapViews();
      // 根据标签tag，获取对应多组网格数据
      let { _gridDataDetailList } = this._getMapViews(...tags);
      const _dataMap = new Map();
      // 将每组每个网格数据按照网格编号进行分类，相同网格的数组归集至一起
      _gridDataDetailList.forEach((list) => {
        list.forEach((gdd) => {
          if (!_dataMap.has(gdd.cellId)) {
            _dataMap.set(gdd.cellId, {
              source: [],
              res: {}
            });
          }
          _dataMap.get(gdd.cellId).source.push(gdd);
        });
      });
      // 计算每个网格下的数据均值
      const resGridDataDetail = [];
      _dataMap.forEach((v, k) => {
        let total = 0,
          count = v.source.length;
        v.source.forEach((s) => {
          total += s.pm25;
        });
        v.res = {
          isMixData: true,
          groupId: v.source[0].groupId,
          cellId: v.source[0].cellId,
          pm25: count == 0 ? null : Math.round((total / count) * 10) / 10,
          originData: v.source
        };
        // 数据量超过1个时，表明该网格数据是融合的，展示高亮的样式
        if (count > 1) {
          v.res.gridStyle = {
            strokeWeight: 2,
            strokeColor: 'blue'
          };
        }
        resGridDataDetail.push(v.res);
      });
      // 重新按照监测数据排序并标记排名
      resGridDataDetail.sort((a, b) => {
        return b.pm25 - a.pm25;
      });
      resGridDataDetail.forEach((gdd, i) => {
        gdd.rank = i + 1;
      });

      this.drawTagGrid({
        tag: mixTag,
        data: resGridDataDetail,
        grid: {
          style: {
            isMixGridHighlight: true
          }
        }
      });
    }

    return mixTag;
  }

  _getMapViews(...tags) {
    let _mapViewsList = [],
      _gridDataDetailList = [];
    if (tags.length > 0) {
      tags.forEach((tag) => {
        if (this.mapViewsMap.has(tag) && this.gridDataDetailMap.has(tag)) {
          _mapViewsList.push(this.mapViewsMap.get(tag));
          _gridDataDetailList.push(this.gridDataDetailMap.get(tag));
        }
      });
    } else {
      this.mapViewsMap.forEach((v) => {
        _mapViewsList.push(v);
      });
      this.gridDataDetailMap.forEach((v) => {
        _gridDataDetailList.push(v);
      });
      if (this.mapViews && this.gridDataDetail) {
        _mapViewsList.push(this.mapViews);
        _gridDataDetailList.push(this.gridDataDetail);
      }
    }

    return { _mapViewsList, _gridDataDetailList };
  }

  _createNewMapViews({ extData }) {
    return {
      gridViews: gridMapUtil.drawPolylines({
        points: this.mapViews.gridPoints,
        event: this.firstEvent
      }),
      gridPoints: JSON.parse(JSON.stringify(this.mapViews.gridPoints)),
      points: JSON.parse(JSON.stringify(this.mapViews.points)),
      extData
    };
  }
}