export class DataService {
  constructor() {
    this.vectorData = {};
    this.currentId = 0; // 当前可用id
  }

  setCurrentId(id) {
    this.currentId = id;
  }

  getCurrentId() {
    return this.currentId;
  }

  updateCurrentId() {
    ++this.currentId;
  }

  getVectorData() {
    return this.vectorData;
  }

  initVectorData() {
    this.vectorData.points = {};
    this.vectorData.controlPoints = {};
    this.vectorData.roads = {};
    this.vectorData.curveRoads = {};
    this.vectorData.edges = {};
    this.vectorData.tags = {};
  }

  /**
   * 对公路的操作
   */
  getCurveRoads() {
    return this.vectorData.curveRoads;
  }

  getCurveRoad(curveRoadId) {
    if (curveRoadId) {
      return this.vectorData.curveRoads[curveRoadId];
    } else {
      return null;
    }
  }

  addCurveRoad(curveRoad) {
    this.vectorData.curveRoads[curveRoad.vectorId] = curveRoad;
  }

  deleteCurveRoad(curveRoadId) {
    let curveRoad = this.getCurveRoad(curveRoadId);
    this.deletePoint(curveRoad.startId, curveRoadId);
    this.deletePoint(curveRoad.endId, curveRoadId);
    delete this.vectorData.curveRoads[curveRoadId];
  }

  getRoads() {
    return this.vectorData.roads;
  }

  getRoad(roadId) {
    if (roadId) {
      return this.vectorData.roads[roadId];
    } else {
      return null;
    }
  }

  addRoad(road) {
    this.vectorData.roads[road.vectorId] = road;
  }

  deleteRoad(roadId) {
    let road = this.getRoad(roadId);
    this.deletePoint(road.startId, roadId);
    this.deletePoint(road.endId, roadId);
    delete this.vectorData.roads[roadId];
  }

  /**
   * 对端点的操作
   */
  getPoints() {
    return this.vectorData.points;
  }

  getPoint(pointId) {
    if (pointId) {
      return this.vectorData.points[pointId];
    } else {
      return null;
    }
  }

  deletePoint(pointId, roadId) {
    let point = this.getPoint(pointId);
    //有可能先删除墙，导致点没了
    if (point) {
      if (Object.keys(point.parent).length == 0) {
        point = null;
        delete this.vectorData.points[pointId];
      } else if (Object.keys(point.parent).length == 1 && !roadId) {
        delete this.vectorData.points[pointId];
      } else if (
        Object.keys(point.parent).length == 1 &&
        point.parent[roadId]
      ) {
        delete this.vectorData.points[pointId];
      } else if (
        Object.keys(point.parent).length == 1 &&
        !point.parent[roadId]
      ) {
        return;
      } else {
        delete point.parent[roadId];
      }
    }
  }

  addPoint(point) {
    this.vectorData.points[point.vectorId] = point;
  }

  /**
   * 对控制点的操作
   */
  getControlPoints() {
    return this.vectorData.controlPoints;
  }

  // getControlPoint(controlPointId) {
  //   if (controlPointId) {
  //     return this.vectorData.controlPoints[controlPointId];
  //   } else {
  //     return null;
  //   }
  // }

  getControlPoint(edgeId1, edgeId2) {
    if (this.vectorData.controlPoints[edgeId1 + "-" + edgeId2]) {
      return this.vectorData.controlPoints[edgeId1 + "-" + edgeId2];
    } else if (this.vectorData.controlPoints[edgeId2 + "-" + edgeId1]) {
      return this.vectorData.controlPoints[edgeId2 + "-" + edgeId1];
    } else {
      return null;
    }
  }

  getControlPoint2(key) {
    return this.vectorData.controlPoints[key];
  }

  getControlPointForEdgeId(edgeId, dir) {
    for (let key in this.vectorData.controlPoints) {
      const controlPoint = this.vectorData.controlPoints[key];
      if (
        controlPoint.edgeInfo1.id == edgeId &&
        controlPoint.edgeInfo1.dir == dir
      ) {
        return this.vectorData.controlPoints[key];
      } else if (
        controlPoint.edgeInfo2.id == edgeId &&
        controlPoint.edgeInfo2.dir == dir
      ) {
        return this.vectorData.controlPoints[key];
      }
    }
  }

  addControlPoint(controlPoint) {
    this.vectorData.controlPoints[
      controlPoint.edgeInfo1.id + "-" + controlPoint.edgeInfo2.id
    ] = controlPoint;
  }

  deleteControlPoint(edgeId1, edgeId2) {
    let key = edgeId1 + "-" + edgeId2;
    if (!this.vectorData.controlPoints[key]) {
      key = edgeId2 + "-" + edgeId1;
    }
    if (this.vectorData.controlPoints[key]) {
      delete this.vectorData.controlPoints[key];
    }
  }

  deleteControlPointForEdge(edgeId, dir) {
    let dControlPointIds = [];
    for (let key in this.vectorData.controlPoints) {
      const controlPoint = this.vectorData.controlPoints[key];
      if (
        controlPoint.edgeInfo1.id == edgeId ||
        controlPoint.edgeInfo2.id == edgeId
      ) {
        dControlPointIds.push(key);
      }
    }

    for (let i = 0; i < dControlPointIds.length; ++i) {
      const controlPoint = this.vectorData.controlPoints[dControlPointIds[i]];
      if (
        controlPoint.edgeInfo1.id == edgeId &&
        controlPoint.edgeInfo1.dir == dir
      ) {
        delete this.vectorData.controlPoints[dControlPointIds[i]];
      } else if (
        controlPoint.edgeInfo2.id == edgeId &&
        controlPoint.edgeInfo2.dir == dir
      ) {
        delete this.vectorData.controlPoints[dControlPointIds[i]];
      }
    }
  }

  /**
   * 对公路边缘的操作
   */
  getEdge(edgeId) {
    return this.vectorData.edges[edgeId];
  }

  addEdge(edge) {
    this.vectorData.edges[edge.vectorId] = edge;
  }

  /**
   * 对标注的操作
   */
  addTag(tag) {
    this.vectorData.tags[tag.vectorId] = tag;
  }

  getTag(tagId) {
    return this.vectorData.tags[tagId];
  }

  deleteTag(tagId) {
    delete this.vectorData.tags[tagId];
  }

  getTags() {
    return this.vectorData.tags;
  }

  clear() {
    this.vectorData = {};
  }
}

const dataService = new DataService();
export { dataService };