import { mathUtil } from "./Util/MathUtil";
import { dataService } from "./Service/DataService.js";
import { stateService } from "./Service/StateService.js";
import { roadService } from "./Service/RoadService.js";
import Constant from "./Constant.js";
import VectorType from "./enum/VectorType.js";
import SelectState from "./enum/SelectState.js";
import bezierUtil from "./Util/bezierUtil.js";
import { elementService } from "./Service/ElementService";
import { coordinate } from "./Coordinate";
import { draw } from "./Renderer/Draw.js";

export default class ListenLayer {
  constructor() {
    this.roadInfo = {
      roadId: null,
      type: null,
      state: null,
    };

    this.curveRoadInfo = {
      curveRoadId: null,
      type: null,
      state: null,
    };

    this.pointInfo = {
      pointId: null,
      type: null,
      state: null,
    };

    this.curvePointInfo = {
      curvePointId: null,
      type: null,
      state: null,
    };

    this.tagInfo = {
      tagId: null,
      state: null,
    };

    this.modifyPoint = null;

    // this.testStart = null;
    // this.testEnd = null;
    // this.testHit = false;
  }

  //开始监听，exceptPointId表示不考虑的点，exceptRoadIds表示不考虑的墙
  start(
    position,
    exceptPointId,
    exceptRoadIds,
    exceptCurvePointId,
    exceptCurveRoadId
  ) {
    let isSame = false;
    this.clear();
    let curveRoadInfo = this.isSelectCurveRoad(position, exceptCurveRoadId);
    let roadInfo = this.isSelectRoad(position, exceptRoadIds);
    let curvePointInfo = this.isSelectCurvePoint(position, exceptCurvePointId);
    let pointInfo = this.isSelectPoint(position, exceptPointId);
    this.setModifyPoint(
      position,
      pointInfo,
      curvePointInfo,
      roadInfo,
      curveRoadInfo
    );
    // let flag1 = this.equalAndClone(this.curveRoadInfo, curveRoadInfo);
    // let flag2 = this.equalAndClone(this.roadInfo, roadInfo);
    // let flag3 = this.equalAndClone(this.curvePointInfo, curvePointInfo);
    // let flag4 = this.equalAndClone(this.pointInfo, pointInfo);
    // isSame = this.updateSelectItem(flag1, flag2, flag3, flag4);
    isSame = this.updateSelectItem();
    return !isSame;
  }

  isSelectPoint(position, exceptPointId) {
    let pointInfo = {
      pointId: null,
      type: null,
      distance: null,
    };

    let seqInfo = {};
    const points = dataService.getPoints();
    for (const pointId in points) {
      if (pointId == exceptPointId) {
        continue;
      }
      const point = dataService.getPoint(pointId);
      const distance = mathUtil.getDistance(position, point);
      if (distance < Constant.minAdsorbPix) {
        if (pointInfo.pointId == null) {
          pointInfo = {
            pointId: pointId,
            type: VectorType.Point,
            distance: distance,
          };
        } else if (pointInfo.pointId != null) {
          if (distance < pointInfo.distance) {
            pointInfo = {
              pointId: pointId,
              type: VectorType.Point,
              distance: distance,
            };
          }
        }
      } else {
        if (Math.abs(position.x - point.x) < Constant.minAdsorbPix) {
          seqInfo.linkedPointIdX = pointId;
          seqInfo.x = point.x;
        } else if (Math.abs(position.y - point.y) < Constant.minAdsorbPix) {
          seqInfo.linkedPointIdY = pointId;
          seqInfo.y = point.y;
        }
      }
    }

    if (pointInfo.pointId) {
      const linkedPoint = dataService.getPoint(pointInfo.pointId);
      pointInfo.x = linkedPoint.x;
      pointInfo.y = linkedPoint.y;
    }
    //因为这种纠正的权限最低
    else {
      if (seqInfo.hasOwnProperty("linkedPointIdX")) {
        pointInfo.linkedPointIdX = seqInfo.linkedPointIdX;
        pointInfo.x = seqInfo.x;
      }
      if (seqInfo.hasOwnProperty("linkedPointIdY")) {
        pointInfo.linkedPointIdY = seqInfo.linkedPointIdY;
        pointInfo.y = seqInfo.y;
      }

      if (pointInfo.hasOwnProperty("y") && !pointInfo.hasOwnProperty("x")) {
        pointInfo.x = position.x;
      }
      if (pointInfo.hasOwnProperty("x") && !pointInfo.hasOwnProperty("y")) {
        pointInfo.y = position.y;
      }
    }

    return pointInfo;
  }

  isSelectCurvePoint(position, exceptCurvePointId) {
    let curvePointInfo = {
      curvePointId: null,
      type: null,
      distance: null,
    };

    let seqInfo = {};
    const curvePoints = dataService.getCurvePoints();
    for (const curvePointId in curvePoints) {
      if (curvePointId == exceptCurvePointId) {
        continue;
      }
      const curvePoint = dataService.getCurvePoint(curvePointId);
      const distance = mathUtil.getDistance(position, curvePoint);
      if (distance < Constant.minAdsorbPix) {
        if (curvePointInfo.curvePointId == null) {
          curvePointInfo = {
            curvePointId: curvePointId,
            type: VectorType.CurvePoint,
            distance: distance,
          };
        } else if (curvePointInfo.pointId != null) {
          if (distance < curvePointInfo.distance) {
            curvePointInfo = {
              curvePointId: curvePointId,
              type: VectorType.CurvePoint,
              distance: distance,
            };
          }
        }
      } else {
        if (Math.abs(position.x - curvePoint.x) < Constant.minAdsorbPix) {
          seqInfo.linkedPointIdX = curvePointId;
          seqInfo.x = curvePoint.x;
        } else if (
          Math.abs(position.y - curvePoint.y) < Constant.minAdsorbPix
        ) {
          seqInfo.linkedPointIdY = curvePointId;
          seqInfo.y = curvePoint.y;
        }
      }
    }

    if (curvePointInfo.curvePointId) {
      curvePointInfo.linkedCurvePointId = curvePointInfo.curvePointId;
      const linkedCurvePoint = dataService.getCurvePoint(
        curvePointInfo.curvePointId
      );
      curvePointInfo.x = linkedCurvePoint.x;
      curvePointInfo.y = linkedCurvePoint.y;
    } else {
      if (seqInfo.hasOwnProperty("linkedPointIdX")) {
        curvePointInfo.linkedPointIdX = seqInfo.linkedPointIdX;
        curvePointInfo.x = seqInfo.x;
      } else if (seqInfo.hasOwnProperty("linkedPointIdY")) {
        curvePointInfo.linkedPointIdY = seqInfo.linkedPointIdY;
        curvePointInfo.y = seqInfo.y;
      }
      if (
        curvePointInfo.hasOwnProperty("y") &&
        !curvePointInfo.hasOwnProperty("x")
      ) {
        curvePointInfo.x = position.x;
      }
      if (
        curvePointInfo.hasOwnProperty("x") &&
        !curvePointInfo.hasOwnProperty("y")
      ) {
        curvePointInfo.y = position.y;
      }
    }
    return curvePointInfo;
  }

  isSelectRoad(position, exceptRoadIds) {
    let roadInfo = {
      roadId: null,
      type: null,
      distance: null,
    };
    const roads = dataService.getRoads();
    for (const roadId in roads) {
      if (exceptRoadIds != null && exceptRoadIds.hasOwnProperty(roadId)) {
        continue;
      }
      const road = dataService.getRoad(roadId);
      let startPoint = dataService.getPoint(road.startId);
      let endPoint = dataService.getPoint(road.endId);
      const roadLine = roadService.getMidLine(road);
      const join = mathUtil.getJoinLinePoint(position, roadLine);
      const distance = mathUtil.getDistance(position, join);

      if (
        distance < road.width / 2 &&
        mathUtil.isContainForSegment(join, startPoint, endPoint)
      ) {
        if (roadInfo.roadId == null) {
          roadInfo = {
            roadId: roadId,
            type: VectorType.Road,
            distance: distance,
          };
        } else if (roadInfo.roadId != null) {
          if (distance < roadInfo.distance) {
            roadInfo = {
              roadId: roadId,
              type: VectorType.Road,
              distance: mathUtil.getDisForPoinLine(position, roadLine),
            };
          }
        }
      }
    }

    if (roadInfo.roadId) {
      const linkedRoad = dataService.getRoad(roadInfo.roadId);
      const linkedRoadLine = roadService.getMidLine(linkedRoad);
      const linkedPosition = mathUtil.getJoinLinePoint(
        position,
        linkedRoadLine
      );
      roadInfo.x = linkedPosition.x;
      roadInfo.y = linkedPosition.y;
    }
    return roadInfo;
  }

  isSelectCurveRoad(position, exceptCurveRoadId) {
    let curveRoadInfo = {
      curveRoadId: null,
      type: null,
      distance: null,
    };

    const curveRoads = dataService.getCurveRoads();
    for (const curveRoadId in curveRoads) {
      if (curveRoadId == exceptCurveRoadId) {
        continue;
      }
      const curveRoad = dataService.getCurveRoad(curveRoadId);
      let joinInfo = this.distanceForBezier(position, curveRoad.curves);
      if (joinInfo.distance < Constant.minAdsorbPix) {
        curveRoadInfo = {
          curveRoadId: curveRoadId,
          type: VectorType.CurveRoad,
          distance: joinInfo.distance,
          x: joinInfo.position.x,
          y: joinInfo.position.y,
        };
      }
    }

    return curveRoadInfo;
  }

  setModifyPoint(position, pointInfo, curvePointInfo, roadInfo, curveRoadInfo) {
    //优先级最高
    if (pointInfo.pointId || curvePointInfo.curvePointId) {
      this.modifyPoint = {};
      if (pointInfo.pointId && curvePointInfo.curvePointId) {
        if (pointInfo.distance < curvePointInfo.distance) {
          this.modifyPoint.linkedPointId = pointInfo.pointId;
          this.modifyPoint.x = pointInfo.x;
          this.modifyPoint.y = pointInfo.y;
        } else {
          this.modifyPoint.linkedCurvePointId = curvePointInfo.curvePointId;
          this.modifyPoint.x = curvePointInfo.x;
          this.modifyPoint.y = curvePointInfo.y;
        }
      } else if (pointInfo.pointId) {
        this.modifyPoint.linkedPointId = pointInfo.pointId;
        this.modifyPoint.x = pointInfo.x;
        this.modifyPoint.y = pointInfo.y;
      } else if (curvePointInfo.curvePointId) {
        this.modifyPoint.linkedCurvePointId = curvePointInfo.curvePointId;
        this.modifyPoint.x = curvePointInfo.x;
        this.modifyPoint.y = curvePointInfo.y;
      }
    } else if (roadInfo.roadId || curveRoadInfo.curveRoadId) {
      this.modifyPoint = {};
      if (roadInfo.roadId && curveRoadInfo.curveRoadId) {
        if (roadInfo.distance < curveRoadInfo.distance) {
          this.modifyPoint.linkedRoadId = roadInfo.roadId;
          this.modifyPoint.x = roadInfo.x;
          this.modifyPoint.y = roadInfo.y;
        } else {
          this.modifyPoint.linkedCurveRoadId = curveRoadInfo.curveRoadId;
          this.modifyPoint.x = curveRoadInfo.x;
          this.modifyPoint.y = curveRoadInfo.y;
        }
      } else if (roadInfo.roadId) {
        this.modifyPoint.linkedRoadId = roadInfo.roadId;
        this.modifyPoint.x = roadInfo.x;
        this.modifyPoint.y = roadInfo.y;
      } else if (curveRoadInfo.curveRoadId) {
        this.modifyPoint.linkedCurveRoadId = curveRoadInfo.curveRoadId;
        this.modifyPoint.x = curveRoadInfo.x;
        this.modifyPoint.y = curveRoadInfo.y;
      }
    } else if (pointInfo.linkedPointIdX) {
      this.modifyPoint = {};
      this.modifyPoint.linkedPointIdX = pointInfo.linkedPointIdX;
      this.modifyPoint.x = pointInfo.x;
      this.modifyPoint.y = position.y;
    } else if (pointInfo.linkedPointIdY) {
      this.modifyPoint = {};
      this.modifyPoint.linkedPointIdY = pointInfo.linkedPointIdY;
      this.modifyPoint.y = pointInfo.y;
      this.modifyPoint.x = position.x;
    } else if (curvePointInfo.linkedPointIdX) {
      this.modifyPoint = {};
      this.modifyPoint.linkedPointIdX = curvePointInfo.linkedPointIdX;
      this.modifyPoint.x = curvePointInfo.x;
      this.modifyPoint.y = position.y;
    } else if (curvePointInfo.linkedPointIdY) {
      this.modifyPoint = {};
      this.modifyPoint.linkedPointIdY = curvePointInfo.linkedPointIdY;
      this.modifyPoint.y = curvePointInfo.y;
      this.modifyPoint.x = position.x;
    } else {
      this.modifyPoint = null;
    }
  }

  updateSelectItem() {
    let selectItem = stateService.getSelectItem();
    if (this.modifyPoint == null) {
      if (selectItem != null) {
        stateService.clearSelectItem();
        return true;
      } else {
        return false;
      }
    } else if (this.modifyPoint.linkedPointId) {
      stateService.setSelectItem(
        this.modifyPoint.linkedPointId,
        VectorType.Point,
        SelectState.Select
      );
    } else if (this.modifyPoint.linkedCurvePointId) {
      stateService.setSelectItem(
        this.modifyPoint.linkedCurvePointId,
        VectorType.CurvePoint,
        SelectState.Select
      );
    } else if (this.modifyPoint.linkedRoadId) {
      stateService.setSelectItem(
        this.modifyPoint.linkedRoadId,
        VectorType.Road,
        SelectState.Select
      );
    } else if (this.modifyPoint.linkedCurveRoadId) {
      stateService.setSelectItem(
        this.modifyPoint.linkedCurveRoadId,
        VectorType.CurveRoad,
        SelectState.Select
      );
    }

    let newSelectItem = stateService.getSelectItem();
    if (selectItem == null && newSelectItem == null) {
      return false;
    } else if (selectItem == null && newSelectItem != null) {
      return true;
    } else if (selectItem != null && newSelectItem == null) {
      return true;
    } else if (selectItem.vectorId == newSelectItem.vectorId) {
      return false;
    } else {
      return true;
    }
    // if (!flag1) {
    //   stateService.setSelectItem(
    //     this.curveRoadInfo.curveRoadId,
    //     this.curveRoadInfo.type,
    //     this.curveRoadInfo.state
    //   );
    // }
    // if (!flag2) {
    //   stateService.setSelectItem(
    //     this.roadInfo.roadId,
    //     this.roadInfo.type,
    //     this.roadInfo.state
    //   );
    // }
    // if (!flag3) {
    //   stateService.setSelectItem(
    //     this.curvePointInfo.curvePointId,
    //     this.curvePointInfo.type,
    //     this.curvePointInfo.state
    //   );
    // }
    // if (!flag4) {
    //   stateService.setSelectItem(
    //     this.pointInfo.pointId,
    //     this.pointInfo.type,
    //     this.pointInfo.state
    //   );
    // }
    // let selectItem = stateService.getSelectItem();
    // if (selectItem != null) {
    //   console.log("监听：" + JSON.stringify(selectItem));
    // }
    // return flag1 && flag2 && flag3 && flag4;
  }

  distanceForBezier(position, curves) {
    let joinInfo = {
      position: null,
      distance: null,
    };
    for (let i = 0; i < curves.length; ++i) {
      const curve = curves[i];
      let bezierData = [];
      bezierData.push(curve.start.x);
      bezierData.push(curve.start.y);
      bezierData.push(curve.control.x);
      bezierData.push(curve.control.y);
      bezierData.push(curve.end.x);
      bezierData.push(curve.end.y);
      const { isHit, getInfo } = bezierUtil.measureBezier(...bezierData);
      const { point } = getInfo(position);

      if (
        joinInfo.distance == null ||
        mathUtil.getDistance(position, {
          x: point[0],
          y: point[1],
        }) < joinInfo.distance
      ) {
        joinInfo.distance = mathUtil.getDistance(position, {
          x: point[0],
          y: point[1],
        });
        joinInfo.position = {
          x: point[0],
          y: point[1],
        };
      }
    }
    return joinInfo;
  }

  equalAndClone(info1, info2) {
    let flag = true;
    for (let key in info1) {
      if (info1[key] != info2[key]) {
        flag = false;
      }

      info1[key] = info2[key];
    }
    return flag;
  }

  clear() {
    this.roadInfo = {
      roadId: null,
      type: null,
      state: null,
    };

    this.curveRoadInfo = {
      curveRoadId: null,
      type: null,
      state: null,
    };

    this.pointInfo = {
      pointId: null,
      type: null,
      state: null,
    };

    this.curvePointInfo = {
      curvePointId: null,
      type: null,
      state: null,
    };

    this.tagInfo = {
      tagId: null,
      state: null,
    };

    this.modifyPoint = null;
  }
}
const listenLayer = new ListenLayer();
export { listenLayer };