import Point from "../Geometry/Point.js";
import Line from "../Geometry/Line.js";
import CurvePoint from "../Geometry/CurvePoint.js";
import CurveLine from "../Geometry/CurveLine.js";
import { dataService } from "./DataService.js";
import { curvePointService } from "./CurvePointService.js";
import VectorCategory from "../enum/VectorCategory.js";
import { mathUtil } from "../Util/MathUtil.js";
import { uiService } from "./UIService.js";
import { addLine } from "../Controls/AddLine.js";
import Constant from "../Constant.js";

export default class LineService {
  constructor() {}

  create(startPoint, endPoint, category, vectorId) {
    if (!startPoint || !endPoint || mathUtil.equalPoint(startPoint, endPoint)) {
      return null;
    }
    let start = new Point(startPoint);
    let end = new Point(endPoint);
    let line = new Line(start.vectorId, end.vectorId, vectorId);
    if (category) {
      line.setCategory(category);
    }
    start.setPointParent(line.vectorId, "start");
    end.setPointParent(line.vectorId, "end");
    dataService.addPoint(start);
    dataService.addPoint(end);
    dataService.addLine(line);
    return line;
  }

  createByPointId(startId, endId, category, vectorId) {
    let line = new Line(startId, endId, vectorId);
    if (category) {
      line.setCategory(category);
    }
    let start = dataService.getPoint(startId);
    let end = dataService.getPoint(endId);
    start.setPointParent(line.vectorId, "start");
    end.setPointParent(line.vectorId, "end");
    dataService.addLine(line);
    return line;
  }

  deleteLine(lineId) {
    let line = dataService.getLine(lineId);
    //如果是基准线
    if (line.getCategory() == VectorCategory.Line.BaseLine) {
      let points = dataService.getPoints();
      for (let key in points) {
        let point = dataService.getPoint(key);
        let category = point.getCategory();
        if (
          category == VectorCategory.Point.BasePoint ||
          category == VectorCategory.Point.TestBasePoint
        ) {
          dataService.deletePoint(key);
        }
      }
      uiService.setBaseLineId(null);
    }
    dataService.deleteLine();
  }

  copy(vectorId) {
    let line = dataService.getLine(vectorId);
    let startPoint = dataService.getPoint(line.startId);
    let endPoint = dataService.getPoint(line.endId);
    startPoint = uiService.getNewPositionForPop(startPoint);
    endPoint = uiService.getNewPositionForPop(endPoint);
    let newLine = this.create(startPoint, endPoint, line.category);
    newLine.setColor(line.color);
    if (line.weight) {
      newLine.setWeight(line.weight);
    }
    if (line.style) {
      newLine.setStyle(line.style);
    }
    return newLine.vectorId;
  }

  getLine(pointId1, pointId2) {
    let lines = dataService.getLines();
    for (let key in lines) {
      const line = dataService.getLine(key);
      if (
        (line.startId == pointId1 && line.endId == pointId2) ||
        (line.endId == pointId1 && line.startId == pointId2)
      ) {
        return key;
      }
    }
    return null;
  }

  //是否已经设置了直角测量法
  hasLocationModeByAngle() {
    let lines = dataService.getLines();
    for (let key in lines) {
      let line = dataService.getLine(key);
      if (line.getLocationMode() == Constant.angleLocationMode) {
        return true;
      }
    }
    return false;
  }

  /******************************************************************************曲线**************************************************************************************/
  createCurveLine(startPosition, endPosition, vectorId) {
    if (
      !startPosition ||
      !endPosition ||
      mathUtil.equalPoint(startPosition, endPosition)
    ) {
      return null;
    }
    let startPoint = curvePointService.create(startPosition);
    let endPoint = curvePointService.create(endPosition);
    let curveLine = new CurveLine(
      startPoint.vectorId,
      endPoint.vectorId,
      vectorId
    );

    startPoint.setPointParent(curveLine.vectorId);
    startPoint.setIndex(0);
    endPoint.setPointParent(curveLine.vectorId);
    endPoint.setIndex(2);
    let midPoint = curvePointService.create({
      x: (startPoint.x + endPoint.x) / 2,
      y: (startPoint.y + endPoint.y) / 2,
    });
    midPoint.setPointParent(curveLine.vectorId);
    midPoint.setIndex(1);
    curveLine.points = [];
    curveLine.points.push(startPoint);
    curveLine.points.push(midPoint);
    curveLine.points.push(endPoint);
    curveLine.curves = mathUtil.getCurvesByPoints(curveLine.points);
    dataService.addCurveLine(curveLine);
    return curveLine;
  }

  createCurveLineByPointIds(curvePoints, vectorId) {
    let curveLine = new CurveLine(
      curvePoints[0].vectorId,
      curvePoints[curvePoints.length - 1].vectorId,
      vectorId
    );
    curveLine.points = [];
    for (let i = 0; i < curvePoints.length; ++i) {
      curveLine.points[i] = dataService.getCurvePoint(curvePoints[i].vectorId);
      curveLine.points[i].setIndex(i);
      curveLine.points[i].setPointParent(curveLine.vectorId);
    }
    curveLine.curves = mathUtil.getCurvesByPoints(curveLine.points);
    dataService.addCurveLine(curveLine);
    return curveLine;
  }

  createCurveLineByPoints(points, vectorId) {
    let curvePoints = [];
    for (let i = 0; i < points.length; ++i) {
      let curvePoint = curvePointService.create(points[i]);
      curvePoint.setIndex(i);
      curvePoints.push(curvePoint);
    }
    let curveLine = new CurveLine(
      curvePoints[0].vectorId,
      curvePoints[curvePoints.length - 1].vectorId,
      vectorId
    );
    curveLine.points = curvePoints;
    for (let i = 0; i < curvePoints.length; ++i) {
      curvePoints[i].setIndex(i);
      curvePoints[i].setPointParent(curveLine.vectorId);
    }
    curveLine.curves = mathUtil.getCurvesByPoints(curvePoints);
    dataService.addCurveLine(curveLine);
    return curveLine;
  }

  addCPoint(position, index, vectorId) {
    let curveLine = dataService.getCurveLine(vectorId);
    let newPoint = curvePointService.create(position);
    newPoint.setIndex(index);
    newPoint.setPointParent(vectorId);
    curveLine.points.splice(index, 0, newPoint);
    for (let i = index + 1; i < curveLine.points.length; ++i) {
      curveLine.points[i].setIndex(i);
    }
    curveLine.startId = curveLine.points[0].vectorId;
    curveLine.endId = curveLine.points[curveLine.points.length - 1].vectorId;
    curveLine.curves = mathUtil.getCurvesByPoints(curveLine.points);
  }

  copyCurveLine(vectorId) {
    let curveLine = dataService.getCurveLine(vectorId);
    let startPoint = dataService.getCurvePoint(curveLine.startId);
    let endPoint = dataService.getCurvePoint(curveLine.endId);
    startPoint = uiService.getNewPositionForPop(startPoint);
    endPoint = uiService.getNewPositionForPop(endPoint);

    let newCurveLine = this.createCurveLine(startPoint, endPoint);
    newCurveLine.setColor(curveLine.color);
    if (curveLine.weight) {
      newCurveLine.setWeight(curveLine.weight);
    }
    if (curveLine.style) {
      newCurveLine.setStyle(curveLine.style);
    }

    mathUtil.clonePoint(
      newCurveLine.points[1],
      uiService.getNewPositionForPop(curveLine.points[1])
    );
    newCurveLine.points[1].setIndex(curveLine.points[1].getIndex());

    for (let i = 2; i < curveLine.points.length - 1; ++i) {
      let newPoint = uiService.getNewPositionForPop(curveLine.points[i]);
      newPoint = curvePointService.create(newPoint);
      newPoint.setPointParent(vectorId);
      newPoint.setIndex(curveLine.points[i].getIndex());
      newCurveLine.points.splice(i, 0, newPoint);
    }
    newCurveLine.points[newCurveLine.points.length - 1].setIndex(
      curveLine.points[curveLine.points.length - 1].getIndex()
    );
    newCurveLine.curves = mathUtil.getCurvesByPoints(newCurveLine.points);
    return newCurveLine.vectorId;
  }

  deleteCrossPointForCurveLine(curvePointId, curveLineId) {
    let curveLine = dataService.getCurveLine(curveLineId);
    for (let i = 0; i < curveLine.points.length; ++i) {
      if (curveLine.points[i].vectorId == curvePointId) {
        if (i == 0) {
          curveLine.points.shift();
          curveLine.startId = curveLine.points[0].vectorId;
          for (let j = 0; j < curveLine.points.length; ++j) {
            let _curvePoint = dataService.getCurvePoint(
              curveLine.points[j].vectorId
            );
            const index = _curvePoint.getIndex();
            _curvePoint.setIndex(index - 1);
          }
        } else if (i == curveLine.points.length - 1) {
          curveLine.points.pop();
          curveLine.endId =
            curveLine.points[curveLine.points.length - 1].vectorId;
        } else {
          curveLine.points.splice(i, 1);
          for (let j = i; j < curveLine.points.length; ++j) {
            let _curvePoint = dataService.getCurvePoint(
              curveLine.points[j].vectorId
            );
            const index = _curvePoint.getIndex();
            _curvePoint.setIndex(index - 1);
          }
        }
        break;
      }
    }
    dataService.deleteCurvePoint(curvePointId);
    if (curveLine.points.length == 2) {
      let startPoint = dataService.getCurvePoint(curveLine.startId);
      let endPoint = dataService.getCurvePoint(curveLine.endId);
      let line = this.create(startPoint, endPoint);
      const weight = curveLine.getWeight();
      line.setWeight(weight);
      const style = curveLine.getStyle();
      line.setStyle(style);
      this.deleteCurveLine(curveLineId);
    } else {
      curveLine.curves = mathUtil.getCurvesByPoints(curveLine.points);
    }
  }

  deleteCurveLine(curveLineId) {
    let curveLine = dataService.getCurveLine(curveLineId);
    for (let i = 0; i < curveLine.points.length; ++i) {
      dataService.deleteCurvePoint(curveLine.points[i].vectorId);
    }
    dataService.deleteCurveLine(curveLineId);
  }
}

const lineService = new LineService();
export { lineService };