import Point from "../Geometry/Point.js";
import Line from "../Geometry/Line.js";
import Road from "../Geometry/Road.js";
import RoadEdge from "../Geometry/RoadEdge.js";
import ElementEvents from "../enum/ElementEvents.js";
import VectorCategory from "../enum/VectorCategory.js";
import { listenLayer } from "../ListenLayer";
import Constant from "../Constant";
import { dataService } from "./DataService.js";
import { mathUtil } from "../Util/MathUtil";
import { coordinate } from "../Coordinate.js";

export class ElementService {
  constructor() {
    this.point = null;

    this.newLine = null;
    this.newLineStart = null;
    this.newLineEnd = null;

    this.newRoad = null;

    this.checkLinesXStart = null;
    this.checkLinesXEnd = null;
    this.checkLinesYStart = null;
    this.checkLinesYEnd = null;
    this.checkLines = {
      X: null,
      Y: null,
    };

    this.vCheckLinesXStart = null;
    this.vCheckLinesXEnd = null;
    this.vCheckLinesYStart = null;
    this.vCheckLinesYEnd = null;
    this.vCheckLines = {
      X: null,
      Y: null,
    };
    this.init();
  }

  init() {
    this.point = new Point({ x: 0, y: 0 });
    this.point.name = ElementEvents.AddingPoint;

    this.newRoad = this.createTempRoad();
    this.newRoad.name = ElementEvents.NewRoad;

    this.newLineStart = new Point({ x: 0, y: 0 });
    this.newLineEnd = new Point({ x: 1, y: 1 });
    this.newLine = new Line(this.newLineStart, this.newLineEnd);
    this.newLine.setCategory(VectorCategory.Line.NormalLine);
    this.newLine.name = ElementEvents.NewLine;

    this.checkLinesXStart = new Point({ x: 0, y: 0 });
    this.checkLinesXEnd = new Point({ x: 1, y: 1 });
    this.checkLines.X = new Line(this.checkLinesXStart, this.checkLinesXEnd);
    this.newLine.setCategory(VectorCategory.Line.GuideLine);
    this.checkLines.X.name = ElementEvents.CheckLinesX;

    this.checkLinesYStart = new Point({ x: 0, y: 0 });
    this.checkLinesYEnd = new Point({ x: 1, y: 1 });
    this.checkLines.Y = new Line(this.checkLinesYStart, this.checkLinesYEnd);
    this.newLine.setCategory(VectorCategory.Line.GuideLine);
    this.checkLines.Y.name = ElementEvents.CheckLinesY;

    this.vCheckLinesXStart = new Point({ x: 0, y: 0 });
    this.vCheckLinesXEnd = new Point({ x: 1, y: 1 });
    this.vCheckLines.X = new Line(this.vCheckLinesXStart, this.vCheckLinesXEnd);
    this.newLine.setCategory(VectorCategory.Line.GuideLine);
    this.vCheckLines.X.name = ElementEvents.VCheckLinesX;

    this.vCheckLinesYStart = new Point({ x: 0, y: 0 });
    this.vCheckLinesYEnd = new Point({ x: 1, y: 1 });
    this.vCheckLines.Y = new Line(this.vCheckLinesYStart, this.vCheckLinesYEnd);
    this.newLine.setCategory(VectorCategory.Line.GuideLine);
    this.vCheckLines.Y.name = ElementEvents.VCheckLinesY;

    this.hideAll();
  }

  //临时的
  createTempRoad() {
    let p1 = new Point({ x: 0, y: 0 });
    let p2 = new Point({ x: 1, y: 1 });
    this.newRoad = new Road(p1.vectorId, p2.vectorId);
    this.newRoad.start = p1;
    this.newRoad.end = p2;

    let edgePoints;
    if (this.newRoad.way == Constant.oneWay) {
      edgePoints = mathUtil.RectangleVertex(p1, p2, newRoad.singleRoadWidth);
    } else {
      edgePoints = mathUtil.RectangleVertex(
        p1,
        p2,
        this.newRoad.leftWidth +
          this.newRoad.rightWidth +
          this.newRoad.midDivide.midDivideWidth
      );
    }
    let leftEdge = new RoadEdge(
      edgePoints.leftEdgeStart,
      edgePoints.leftEdgeEnd,
      null,
      this.newRoad.vectorId
    );

    let rightEdge = new RoadEdge(
      edgePoints.rightEdgeStart,
      edgePoints.rightEdgeEnd,
      null,
      this.newRoad.vectorId
    );

    this.newRoad.setLeftEdge(leftEdge.vectorId);
    this.newRoad.setRightEdge(rightEdge.vectorId);
    leftEdge.setEdgeParent(this.newRoad.vectorId);
    rightEdge.setEdgeParent(this.newRoad.vectorId);
    this.newRoad.leftEdge = leftEdge;
    this.newRoad.rightEdge = rightEdge;

    this.hideNewRoad();
    return this.newRoad;
  }

  setNewLineCategory(value) {
    this.newLine.setCategory(value);
  }

  showPoint() {
    this.point.display = true;
  }

  hidePoint() {
    this.point.display = false;
  }

  setPoint(position) {
    this.point.setPosition(position);
  }

  showNewRoad() {
    this.newRoad.display = true;
  }

  hideNewRoad() {
    this.newRoad.display = false;
  }

  setNewRoad(point1, point2) {
    this.newRoad.start.setPosition(point1);
    this.newRoad.end.setPosition(point2);
    //需要更新Edge坐标
    if (!mathUtil.equalPoint(point1, point2)) {
      let edgePoints = mathUtil.RectangleVertex(
        point1,
        point2,
        Constant.defaultRoadWidth
      );
      this.newRoad.leftEdge.setPositions(
        edgePoints.leftEdgeStart,
        edgePoints.leftEdgeEnd
      );
      this.newRoad.rightEdge.setPositions(
        edgePoints.rightEdgeStart,
        edgePoints.rightEdgeEnd
      );
    }
  }

  setNewLine(point1, point2) {
    this.newLineStart.setPositions(point1);
    this.newLineEnd.setPositions(point2);
  }

  showNewLine() {
    this.newLine.display = true;
  }

  hideNewLine() {
    this.newLine.display = false;
  }

  setNewRoadState(state) {
    this.newRoad.state = state;
  }

  showCheckLinesX() {
    this.checkLines.X.display = true;
  }

  hideCheckLinesX() {
    this.checkLines.X.display = false;
  }

  setCheckLinesX(point1, point2) {
    this.checkLinesXStart.setPositions(point1);
    this.checkLinesXEnd.setPositions(point2);
  }

  showCheckLinesY() {
    this.checkLines.Y.display = true;
  }

  hideCheckLinesY() {
    this.checkLines.Y.display = false;
  }

  setCheckLinesY(point1, point2) {
    this.checkLinesYStart.setPositions(point1);
    this.checkLinesYEnd.setPositions(point2);
  }

  showVCheckLinesX() {
    this.vCheckLines.X.display = true;
  }

  hideVCheckLinesX() {
    this.vCheckLines.X.display = false;
  }

  setVCheckLinesX(point1, point2) {
    this.vCheckLinesXStart.setPositions(point1);
    this.vCheckLinesXEnd.setPositions(point2);
  }

  showVCheckLinesY() {
    this.vCheckLines.Y.display = true;
  }

  hideVCheckLinesY() {
    this.vCheckLines.Y.display = false;
  }

  setVCheckLinesY(point1, point2) {
    this.vCheckLinesYStart.setPositions(point1);
    this.vCheckLinesYEnd.setPositions(point2);
  }

  hideAll() {
    this.hideCheckLinesX();
    this.hideCheckLinesY();
    this.hidePoint();
    this.hideNewRoad();
    this.hideNewLine();
    this.hideVCheckLinesX();
    this.hideVCheckLinesY();
  }

  execute(startPosition, position) {
    this.hideVCheckLinesX();
    this.hideVCheckLinesY();
    this.hideCheckLinesX();
    this.hideCheckLinesY();

    //垂直校验
    if (startPosition) {
      let start = coordinate.getXYFromScreen({
        x: 0,
        y: 0,
      });
      let end = coordinate.getXYFromScreen({
        x: coordinate.width,
        y: coordinate.height,
      });
      if (Math.abs(position.x - startPosition.x) < Constant.minAdsorbPix) {
        position.x = startPosition.x;

        start.x = position.x;
        end.x = position.x;
        this.setVCheckLinesX(start, end);
        this.showVCheckLinesX();
      }

      if (Math.abs(position.y - startPosition.y) < Constant.minAdsorbPix) {
        position.y = startPosition.y;

        start.y = position.y;
        end.y = position.y;
        this.setVCheckLinesY(start, end);
        this.showVCheckLinesY();
      }

      if (mathUtil.equalPoint(position, startPosition)) {
        this.hideVCheckLinesX();
        this.hideVCheckLinesY();
      }
    }

    if (!this.vCheckLines.Y.display && !this.vCheckLines.Y.display) {
      if (listenLayer.modifyPoint) {
        if (listenLayer.modifyPoint.linkedRoadPointIdX) {
          let linkedPointX = dataService.getRoadPoint(
            listenLayer.modifyPoint.linkedRoadPointIdX
          );
          this.setCheckLinesX(linkedPointX, position);
          this.showCheckLinesX();
        } else if (listenLayer.modifyPoint.linkedCurveRoadPointIdX) {
          let linkedPointX = dataService.getCurveRoadPoint(
            listenLayer.modifyPoint.linkedCurveRoadPointIdX
          );
          this.setCheckLinesX(linkedPointX, position);
          this.showCheckLinesX();
        } else if (listenLayer.modifyPoint.linkedPointIdX) {
          let linkedPointX = dataService.getPoint(
            listenLayer.modifyPoint.linkedPointIdX
          );
          this.setCheckLinesX(linkedPointX, position);
          this.showCheckLinesX();
        }

        if (listenLayer.modifyPoint.linkedRoadPointIdY) {
          let linkedPointY = dataService.getRoadPoint(
            listenLayer.modifyPoint.linkedRoadPointIdY
          );
          this.setCheckLinesY(linkedPointY, position);
          this.showCheckLinesY();
        } else if (listenLayer.modifyPoint.linkedCurveRoadPointIdY) {
          let linkedPointY = dataService.getCurveRoadPoint(
            listenLayer.modifyPoint.linkedCurveRoadPointIdY
          );
          this.setCheckLinesY(linkedPointY, position);
          this.showCheckLinesY();
        } else if (listenLayer.modifyPoint.linkedPointIdY) {
          let linkedPointY = dataService.getPoint(
            listenLayer.modifyPoint.linkedPointIdY
          );
          this.setCheckLinesY(linkedPointY, position);
          this.showCheckLinesY();
        }
      }
    }
  }

  // //pointId是角度的顶点
  // //exceptPointId表示position对应的pointId(如果有的话)
  // checkAngle(position, pointId, exceptPointId) {
  //   //type:1表示90°，2表示180°
  //   function ajust(position, point1, point2, type) {
  //     let line = mathUtil.createLine1(point1, point2);
  //     let join = null;
  //     if (type == 1) {
  //       let vLine = mathUtil.getVerticalLine(line, point1);
  //       join = mathUtil.getJoinLinePoint(position, vLine);
  //     } else if (type == 2) {
  //       join = mathUtil.getJoinLinePoint(position, line);
  //     }
  //     return join;
  //   }

  //   let points = roadService.getNeighPoints(pointId, exceptPointId);
  //   let point = dataService.getRoadPoint(pointId);
  //   let newPosition = null;
  //   for (let i = 0; i < points.length; ++i) {
  //     let angle = mathUtil.Angle(point, position, points[i]);
  //     if (Math.abs((angle - 90) < 5) {
  //       newPosition = ajust(position, point, points[i], 1);
  //     } else if (
  //       Math.abs(angle < 5 ||
  //       Math.abs(angle - 180) < 5
  //     ) {
  //       newPosition = ajust(position, point, points[i], 2);
  //     }
  //     if (newPosition != null) {
  //       return newPosition;
  //     }
  //   }
  //   return newPosition;
  // }
}

const elementService = new ElementService();
window.elementService = elementService;
export { elementService };