import 'dart:ui';

import 'package:fis_measure/interfaces/process/items/item.dart';
import 'package:fis_measure/interfaces/process/items/item_metas.dart';
import 'package:fis_measure/interfaces/process/items/types.dart';
import 'package:fis_measure/interfaces/process/workspace/point_info.dart';
import 'package:fis_measure/process/calcuators/a_b_ratio.dart';
import 'package:fis_measure/process/calcuators/stenosis.dart';
import 'package:fis_measure/process/calcuators/three_distance.dart';
import 'package:fis_measure/process/items/item_feature.dart';
import 'package:fis_measure/process/items/top_item.dart';
import 'package:fis_measure/process/items/top_item_feature.dart';
import 'package:fis_measure/process/primitives/straightline.dart';
import 'package:fis_measure/process/primitives/trace.dart';

import 'two_length.dart';

class TwoArea extends TwoLengthAbstract<TwoAreaFeature> {
  static const String _area1Key = "A1";
  static const String _area2Key = "A2";

  late final Trace a1;
  late final Trace a2;

  TwoArea(ItemMeta meta) : super(meta) {
    final metaA1 = meta.getChildByName(_area1Key)!;
    final metaA2 = meta.getChildByName(_area2Key)!;
    a1 = Trace.createAreaPerimeter(metaA1, this);
    a2 = Trace.createAreaPerimeter(metaA2, this);
    childItems.add(a1);
    childItems.add(a2);
  }

  @override
  Trace get child1 => a1;

  @override
  Trace get child2 => a2;

  @override
  TwoAreaFeature buildFeature() => TwoAreaFeature(this);

  @override
  void onCancelingOnce() {}

  static TwoArea crateStenosis(ItemMeta meta, [IMeasureItem? parent]) {
    var twoArea = TwoArea(meta);
    twoArea.calculator = StenosisCal(twoArea);

    return twoArea;
  }

  static TwoArea crateABRatio(ItemMeta meta, [IMeasureItem? parent]) {
    var twoArea = TwoArea(meta);
    twoArea.calculator = ABRatioCal(twoArea);

    return twoArea;
  }
}

class TwoAreaFeature extends TopMeasureItemFeature {
  TwoAreaFeature(
    ITopMeasureItem refItem,
  ) : super(refItem);
}