import 'package:fis_measure/interfaces/process/calculators/values.dart';
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/terms.dart';
import 'package:fis_measure/process/calcuators/rvsp.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/empty.dart';
import 'package:vid/us/vid_us_unit.dart';

import 'location.dart';

class Rvsp extends TopMeasureItem<RvspFeature> {
  static const String tRVmaxKey = "TR Vmax";

  late final Location tRVmax;
  late final FloatValue _rap;

  Rvsp(super.meta) {
    final tRVmaxMeta = meta.getChildByName(tRVmaxKey)!;
    tRVmax = Location.createVelocity(tRVmaxMeta, this);
    childItems.add(tRVmax);

    final rapOutputMeta =
        ItemOutputMeta(MeasureTerms.RAP, "RAP", VidUsUnit.mmHg);

    _rap = FloatValue(rapOutputMeta, 0.0, rapOutputMeta.unit);
    // final rapMeta = ItemMeta(
    //   MeasureTerms.RAP,
    //   measureType: MeasureTerms.Placeholder,
    //   description: "RAP",
    //   outputs: [rapOutputMeta],
    // );
    // final rapPlaceholder = Empty.createEmpty(rapMeta, this);
    // childItems.add(rapPlaceholder);
  }

  FloatValue get rap => _rap;

  @override
  bool get repeatableEditable => false;

  @override
  bool get finishAfterUnactive => true;

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

  void updateRap(double val) {
    _rap.value = val;
    calculator?.calculate();
    update();
  }

  static Rvsp createRvsp(
    ItemMeta meta, [
    IMeasureItem? parent,
  ]) {
    Rvsp ins = Rvsp(meta);
    ins.calculator = RvspCal(ins);
    return ins;
  }
}

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