import 'package:fis_measure/configs/patient.dart';
import 'package:fis_measure/interfaces/process/calculators/values.dart';
import 'package:fis_measure/interfaces/process/items/terms.dart';
import 'package:fis_measure/process/calcuators/unit_formulas/index.dart';
import 'package:fis_measure/process/primitives/combos/lv_mass.dart';

import 'calculator.dart';

class LvdMassALCal extends Calculator<LVMass, double> {
  LvdMassALCal(super.ref);

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

    final feature = ref.feature!;

    UnitFloatValue? epi = pickChildToFloatValue(ref.epi)?.toUnitFloatValue();
    UnitFloatValue? endo = pickChildToFloatValue(ref.endo)?.toUnitFloatValue();
    UnitFloatValue? l = pickChildToFloatValue(ref.l)?.toUnitFloatValue();

    UnitFloatValue? lvdmass;
    UnitFloatValue? lvdMassIndex;
    if (epi != null && endo != null && l != null) {
      lvdmass = UnitFormulas.cardiac.lvdMassAL(epi, endo, l);
    }
    if (lvdmass != null && GlobalPatientConfig.bsa > 0) {
      lvdMassIndex = UnitFormulas.cardiac.lvdMassIndex(
        lvdmass,
        bsa: GlobalPatientConfig.bsa,
      );
    }

    for (var output in ref.meta.outputs) {
      switch (output.name) {
        case MeasureTerms.LVdMass:
          if (lvdmass != null) {
            feature.updateFloatValue(output, lvdmass.value, lvdmass.unit);
          }
          break;
        case MeasureTerms.LVdMassIndex:
          if (lvdMassIndex != null) {
            feature.updateFloatValue(
              output,
              lvdMassIndex.value,
              lvdMassIndex.unit,
            );
          }
          break;
      }
    }
  }
}