import 'package:fis_measure/interfaces/date_types/matrix.dart';
import 'package:fis_measure/process/primitives/combos/depth2baseline.dart';
import 'package:fis_measure/process/primitives/location.dart';
import 'package:fis_measure/process/primitives/ray.dart';
import 'package:vid/us/vid_us_unit.dart';

import 'calculator.dart';

class DistanceToRayCal extends Calculator<DepthToBaseLine, double> {
  DistanceToRayCal(DepthToBaseLine ref) : super(ref);

  @override
  void calculate() {
    if (ref.feature == null) return;

    final feature = ref.feature!;
    final depthFeature = findChildFeature<LocationFeature>(ref.depth);
    final baselineFeature = findChildFeature<RayFeature>(ref.baseline);
    if (depthFeature == null || baselineFeature == null) return;

    final depthLocation = depthFeature.point;
    final baseLinePoint = baselineFeature.point;
    final baseLineAngle = baselineFeature.angle;
    var matrix = DMatrix();
    matrix.rotateAt(
      (baselineFeature.isReverse ? 1 : -1) * baseLineAngle,
      baseLinePoint.x,
      baseLinePoint.y,
    );

    var pt = matrix.transformWidthPoint(depthLocation);

    var distance = pt.y - baseLinePoint.y;

    feature.updateFloatValue(ref.meta.outputs.first, distance, VidUsUnit.cm);
  }
}