import 'package:doctor_app_flutter/core/enum/viewstate.dart';
import 'package:doctor_app_flutter/core/service/patient-vital-signs-service.dart';
import 'package:doctor_app_flutter/core/viewModel/base_view_model.dart';
import 'package:doctor_app_flutter/models/patient/PatientArrivalEntity.dart';
import 'package:doctor_app_flutter/models/patient/patiant_info_model.dart';
import 'package:doctor_app_flutter/models/patient/vital_sign/patient-vital-sign-data.dart';
import 'package:doctor_app_flutter/models/patient/vital_sign/vital_sign_res_model.dart';

import '../../locator.dart';

class VitalSignsViewModel extends BaseViewModel {
  VitalSignsService _vitalSignService = locator<VitalSignsService>();

  List<PatientArrivalEntity> get patientArrivalList =>
      _vitalSignService.patientArrivalList;

  VitalSignData get patientVitalSigns => _vitalSignService.patientVitalSigns;

  Future getPatientArrivalList(String date, PatiantInformtion patient,
      {String fromDate}) async {
    setState(ViewState.Busy);
    await _vitalSignService.getPatientArrivalList(date, fromDate: fromDate);
    if (_vitalSignService.hasError) {
      error = _vitalSignService.error;
      setState(ViewState.Error);
    } else {
      await getPatientVitalSign(patient);
    }
  }

  PatientArrivalEntity getPatientAppointmentEntity(PatiantInformtion patient) {
    String ffName = "${patient.firstName} ${patient.lastName}";
    String fmfName =
        "${patient.firstName} ${patient.middleName} ${patient.lastName}";

    for (var element in patientArrivalList) {
      int index = patientArrivalList.indexOf(element);
      if (element.patientName == ffName || element.patientName == fmfName) {
        return element;
      }
      // print("patient index: $index");
    }
    return null;
  }

  Future getPatientVitalSign(PatiantInformtion patient) async {
    setState(ViewState.Busy);
    PatientArrivalEntity patientArrivalEntity =
        getPatientAppointmentEntity(patient);
    if (patientArrivalEntity == null) {
      _vitalSignService.hasError = true;
      error = "There is no appointments for this patient";
      setState(ViewState.Error);
      return;
    }
    await _vitalSignService.getPatientVitalSign(patientArrivalEntity);
    // TODO remove (not) from below condition
    if (!_vitalSignService.hasError) {
      error = _vitalSignService.error;
      setState(ViewState.Error);
    } else {
      if (patientVitalSigns == null) {
        _vitalSignService.patientVitalSigns = VitalSignData(
          appointmentNo: 2016053265,
          bloodPressureCuffLocation: 0,
          bloodPressureCuffSize: 0,
          bloodPressureHigher: 38,
          bloodPressureLower: 32,
          bloodPressurePatientPosition: 1,
          bodyMassIndex: 31.11,
          fio2: 0,
          headCircumCm: 0,
          heightCm: 150,
          idealBodyWeightLbs: -2,
          isPainManagementDone: false,
          isVitalsRequired: true,
          leanBodyWeightLbs: 0,
          painCharacter: null,
          painDuration: null,
          painFrequency: null,
          painLocation: null,
          painScore: 0,
          patientMRN: 3333274,
          patientType: 1,
          pulseBeatPerMinute: 0,
          pulseRhythm: 0,
          respirationBeatPerMinute: 0,
          respirationPattern: 0,
          sao2: 0,
          status: 47,
          temperatureCelcius: 40,
          temperatureCelciusMethod: 1,
          waistSizeInch: 39,
          weightKg: 70,
        );
      }
      setState(ViewState.Idle);
    }
  }
}