import 'package:eatvio_app/features/consultations/models/consultation_progress.dart';
import 'package:eatvio_app/features/consultations/utils/consultation_progress_mapper.dart';
import 'package:eatvio_app/features/plans/enums/chosen_plan_state_enum.dart';
import 'package:flutter_test/flutter_test.dart';

typedef _Expected = ({
  Set<ConsultationStep> steps,
  bool plank,
  PersonalDietStatus diet,
  ConsultationPhase phase,
});

const _startDate = ConsultationStep.startDate;
const _paid = ConsultationStep.paid;
const _inProgress = ConsultationStep.inProgress;
const _finished = ConsultationStep.finished;

final Map<ChosenPlanStateEnum, _Expected> _expectations = {
  ChosenPlanStateEnum.stateInited: (
    steps: {},
    plank: false,
    diet: PersonalDietStatus.notProposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.stateStartDateHasBeenSet: (
    steps: {_startDate},
    plank: true,
    diet: PersonalDietStatus.notProposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.stateInCoordination: (
    steps: {},
    plank: true,
    diet: PersonalDietStatus.notProposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.stateStarted: (
    steps: {_startDate, _paid, _inProgress},
    plank: true,
    diet: PersonalDietStatus.proposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.stateInProgress: (
    steps: {_startDate, _paid, _inProgress},
    plank: true,
    diet: PersonalDietStatus.proposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.statePendingPayment: (
    steps: {_startDate},
    plank: true,
    diet: PersonalDietStatus.notProposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.stateConfirmedByConsultant: (
    steps: {},
    plank: false,
    diet: PersonalDietStatus.notProposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.statePaid: (
    steps: {_startDate, _paid},
    plank: true,
    diet: PersonalDietStatus.notProposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.stateCanceledByTheInitiator: (
    steps: {},
    plank: false,
    diet: PersonalDietStatus.notRequired,
    phase: ConsultationPhase.canceled,
  ),
  ChosenPlanStateEnum.stateLastDayStarted: (
    steps: {_startDate, _paid, _inProgress},
    plank: true,
    diet: PersonalDietStatus.proposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.stateLastDayFinished: (
    steps: {_startDate, _paid, _inProgress},
    plank: true,
    diet: PersonalDietStatus.proposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.stateComplained: (
    steps: {_startDate, _paid, _inProgress},
    plank: true,
    diet: PersonalDietStatus.proposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.stateDone: (
    steps: {_startDate, _paid, _inProgress, _finished},
    plank: true,
    diet: PersonalDietStatus.proposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.personalDietSet: (
    steps: {_startDate, _paid},
    plank: true,
    diet: PersonalDietStatus.proposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.stateChargeWasCollected: (
    steps: {_startDate, _paid, _inProgress, _finished},
    plank: false,
    diet: PersonalDietStatus.proposed,
    phase: ConsultationPhase.active,
  ),
  ChosenPlanStateEnum.statePaymentFailed: (
    steps: {_startDate},
    plank: false,
    diet: PersonalDietStatus.notRequired,
    phase: ConsultationPhase.paymentFailed,
  ),
};

void main() {
  group('mapConsultationProgress — все состояния', () {
    test('таблица покрывает ровно все 16 состояний', () {
      expect(_expectations.length, 16);
      expect(_expectations.keys.toSet(), ChosenPlanStateEnum.values.toSet());
    });

    for (final entry in _expectations.entries) {
      test('${entry.key.name} маппится во все поля ConsultationProgress', () {
        final progress = mapConsultationProgress(
          state: entry.key,
          hasPersonalDiet: true,
        );

        expect(progress.completedSteps, unorderedEquals(entry.value.steps));
        expect(progress.showProgressPlank, entry.value.plank);
        expect(progress.dietStatus, entry.value.diet);
        expect(progress.phase, entry.value.phase);
      });
    }
  });

  group('mapConsultationProgress — ключевые сценарии', () {
    test('in_coordination показывает плашку без завершённых шагов', () {
      final progress = mapConsultationProgress(
        state: ChosenPlanStateEnum.stateInCoordination,
        hasPersonalDiet: true,
      );

      expect(progress.showProgressPlank, isTrue);
      expect(progress.completedSteps, isEmpty);
    });

    test(
      'personal_diet_setted показывает плашку и завершает startDate+paid',
      () {
        final progress = mapConsultationProgress(
          state: ChosenPlanStateEnum.personalDietSet,
          hasPersonalDiet: true,
        );

        expect(progress.showProgressPlank, isTrue);
        expect(progress.completedSteps, unorderedEquals([_startDate, _paid]));
      },
    );

    test(
      'started/in_progress/last_day_started/last_day_finished/complained — 3 шага',
      () {
        const states = [
          ChosenPlanStateEnum.stateStarted,
          ChosenPlanStateEnum.stateInProgress,
          ChosenPlanStateEnum.stateLastDayStarted,
          ChosenPlanStateEnum.stateLastDayFinished,
          ChosenPlanStateEnum.stateComplained,
        ];

        for (final state in states) {
          final progress = mapConsultationProgress(
            state: state,
            hasPersonalDiet: true,
          );

          expect(
            progress.completedSteps,
            unorderedEquals([_startDate, _paid, _inProgress]),
            reason: 'state=${state.name}',
          );
        }
      },
    );

    test('done/charge_was_collected — 4 шага', () {
      const states = [
        ChosenPlanStateEnum.stateDone,
        ChosenPlanStateEnum.stateChargeWasCollected,
      ];

      for (final state in states) {
        final progress = mapConsultationProgress(
          state: state,
          hasPersonalDiet: true,
        );

        expect(
          progress.completedSteps,
          unorderedEquals([_startDate, _paid, _inProgress, _finished]),
          reason: 'state=${state.name}',
        );
      }
    });

    test(
      'canceled — фаза canceled и dietStatus notRequired даже при диете',
      () {
        final progress = mapConsultationProgress(
          state: ChosenPlanStateEnum.stateCanceledByTheInitiator,
          hasPersonalDiet: true,
        );

        expect(progress.phase, ConsultationPhase.canceled);
        expect(progress.isCanceled, isTrue);
        expect(progress.dietStatus, PersonalDietStatus.notRequired);
      },
    );

    test('payment_failed — фаза paymentFailed и только startDate', () {
      final progress = mapConsultationProgress(
        state: ChosenPlanStateEnum.statePaymentFailed,
        hasPersonalDiet: true,
      );

      expect(progress.phase, ConsultationPhase.paymentFailed);
      expect(progress.isPaymentFailed, isTrue);
      expect(progress.completedSteps, unorderedEquals([_startDate]));
    });

    test('hasPersonalDiet=false даёт notRequired для любого состояния', () {
      for (final state in ChosenPlanStateEnum.values) {
        final progress = mapConsultationProgress(
          state: state,
          hasPersonalDiet: false,
        );

        expect(
          progress.dietStatus,
          PersonalDietStatus.notRequired,
          reason: 'state=${state.name}',
        );
        expect(progress.hasDietChip, isFalse, reason: 'state=${state.name}');
      }
    });

    test('paid с диетой даёт notProposed', () {
      final progress = mapConsultationProgress(
        state: ChosenPlanStateEnum.statePaid,
        hasPersonalDiet: true,
      );

      expect(progress.dietStatus, PersonalDietStatus.notProposed);
    });

    test('personal_diet_setted/started/proposed дают proposed', () {
      const states = [
        ChosenPlanStateEnum.personalDietSet,
        ChosenPlanStateEnum.stateStarted,
      ];

      for (final state in states) {
        final progress = mapConsultationProgress(
          state: state,
          hasPersonalDiet: true,
        );

        expect(
          progress.dietStatus,
          PersonalDietStatus.proposed,
          reason: 'state=${state.name}',
        );
      }
    });
  });
}