import Constant from "../Constant";
import { dataService } from "../Service/DataService";
import { lineService } from "../Service/LineService";
import { pointService } from "../Service/PointService";
import { mathUtil } from "../Util/MathUtil";
import VectorCategory from "../enum/VectorCategory";

export default class MoveLine {
  constructor() {}

  moveLine(lineId, dx, dy) {
    dx = dx;
    dy = -dy;
    let line = dataService.getLine(lineId);
    let startPoint = dataService.getPoint(line.startId);
    let endPoint = dataService.getPoint(line.endId);
    //垂直移动
    if (
      line.getCategory() == VectorCategory.Line.PositionLine &&
      line.getLocationMode() == Constant.angleLocationMode
    ) {
      let point1 = {
        x: startPoint.x + dx,
        y: startPoint.y + dy,
      };
      let point2 = {
        x: endPoint.x + dx,
        y: endPoint.y + dy,
      };
      let lineGeometry = mathUtil.createLine1(point1, point2);
      point1 = mathUtil.getJoinLinePoint(startPoint, lineGeometry);
      //startPoint本来是基准点
      if (startPoint.getCategory() == VectorCategory.Point.BasePoint) {
        //达到一定距离才能移动
        if (mathUtil.getDistance(startPoint, point1) < Constant.minAdsorbPix) {
          return false;
        }
        let newStartPoint = pointService.create(point1);
        lineService.createByPointId(
          startPoint.vectorId,
          newStartPoint.vectorId,
          VectorCategory.Line.ExtendedPositionLine
        );
        dataService.deletePointParent(startPoint.vectorId, lineId);
        line.startId = newStartPoint.vectorId;
        newStartPoint.setPointParent(line.vectorId, "start");
      } else {
        startPoint.x = point1.x;
        startPoint.y = point1.y;
        let parents = Object.keys(startPoint.parent);
        let extendedLine = dataService.getLine(parents[0]);
        if (
          extendedLine.getCategory() != VectorCategory.Line.ExtendedPositionLine
        ) {
          extendedLine = dataService.getLine(parents[1]);
        }
        if (
          extendedLine.getCategory() == VectorCategory.Line.ExtendedPositionLine
        ) {
          //point1是基准点
          point1 = dataService.getPoint(extendedLine.startId);
          point2 = dataService.getPoint(extendedLine.endId);
          if (mathUtil.getDistance(point1, point2) < Constant.minAdsorbPix) {
            dataService.deleteLine(extendedLine.vectorId);
            dataService.deletePoint(extendedLine.endId);

            line.startId = point1.vectorId;
            point1.setPointParent(line.vectorId, "start");

            lineGeometry = mathUtil.createLine3(lineGeometry, point1);
          }
        }
      }

      point2 = mathUtil.getJoinLinePoint(endPoint, lineGeometry);
      endPoint.x = point2.x;
      endPoint.y = point2.y;
    } else {
      startPoint.x += dx;
      startPoint.y += dy;
      endPoint.x += dx;
      endPoint.y += dy;
    }
    return true;
  }

  moveCurveLine(curveLineId, dx, dy) {
    dx = dx;
    dy = -dy;
    let curveLine = dataService.getCurveLine(curveLineId);
    let startPoint = dataService.getCurvePoint(curveLine.startId);
    let endPoint = dataService.getCurvePoint(curveLine.endId);
    startPoint.x += dx;
    startPoint.y += dy;
    endPoint.x += dx;
    endPoint.y += dy;
    for (let i = 1; i < curveLine.points.length - 1; ++i) {
      curveLine.points[i].x += dx;
      curveLine.points[i].y += dy;
    }
    curveLine.curves = mathUtil.getCurvesByPoints(curveLine.points);
  }
}

const moveLine = new MoveLine();
export { moveLine };