import 'dart:convert';

import 'package:flutter/material.dart';
import 'package:flutter_test/flutter_test.dart';
import 'package:gametime/application/application.dart';
import 'package:gametime/domain/domain.dart';
import 'package:gametime/presentation/presentation.dart';

void main() {
  testWidgets('le temps affiché est recalculé depuis les horodatages', (
    tester,
  ) async {
    final clock = _FakeClock(DateTime.utc(2026, 7, 17, 12, 0, 15));
    final session = ActiveWorkoutSession(
      metadata: _metadata('session-1'),
      sourceWorkoutTemplateId: 'template-1',
      status: ActiveWorkoutStatus.running,
      startedAt: DateTime.utc(2026, 7, 17, 11, 59),
      lastPersistedAt: DateTime.utc(2026, 7, 17, 12),
      elapsedActiveMs: 30000,
      currentProgramIndex: 0,
      currentExerciseIndex: 0,
      currentSetIndex: 0,
      resolvedTemplateSnapshotJson: _sessionSnapshot(),
    );

    await tester.pumpWidget(
      MaterialApp(
        home: WorkoutExecutionScreen(
          initialSession: session,
          activeUseCases: _activeUseCases(
            _FakeActiveSessionRepository(),
            clock,
          ),
          closeUseCase: _closeUseCase(_FakeActiveSessionRepository(), clock),
        ),
      ),
    );

    expect(find.text('00:45'), findsOneWidget);
  });

  testWidgets('les mesures cumulées respectent la hiérarchie visuelle', (
    tester,
  ) async {
    final scoreController = TextEditingController();
    addTearDown(scoreController.dispose);

    await tester.pumpWidget(
      MaterialApp(
        home: Scaffold(
          body: SetMeasureInput(
            exercise: const ExecutionExercise(
              id: 'exercise-1',
              name: 'Squat',
              setsCount: 3,
              timeEnabled: true,
              repsEnabled: true,
              scoreEnabled: true,
              restSeconds: 0,
              scoreUnit: 'kg',
            ),
            reps: 0,
            scoreController: scoreController,
            onRepsChanged: (_) {},
          ),
        ),
      ),
    );

    final timeY = tester.getTopLeft(find.text('Temps')).dy;
    final repsY = tester.getTopLeft(find.text('Répétitions')).dy;
    final scoreY = tester.getTopLeft(find.text('Score (kg)')).dy;

    expect(timeY, lessThan(repsY));
    expect(repsY, lessThan(scoreY));
  });

  testWidgets('aucun repos ne s’affiche après la toute dernière série', (
    tester,
  ) async {
    final plan = WorkoutExecutionPlan.fromSession(
      ActiveWorkoutSession(
        metadata: _metadata('session-1'),
        sourceWorkoutTemplateId: 'template-1',
        status: ActiveWorkoutStatus.running,
        startedAt: DateTime.utc(2026, 7, 17, 12),
        lastPersistedAt: DateTime.utc(2026, 7, 17, 12),
        elapsedActiveMs: 0,
        currentProgramIndex: 0,
        currentExerciseIndex: 0,
        currentSetIndex: 0,
        resolvedTemplateSnapshotJson: _sessionSnapshot(
          setsCount: 1,
          restSeconds: 60,
        ),
      ),
    );
    const position = ExecutionPosition(
      programIndex: 0,
      exerciseIndex: 0,
      setIndex: 0,
    );

    await tester.pumpWidget(
      Directionality(
        textDirection: TextDirection.ltr,
        child: Text(
          plan.shouldShowRestAfter(position) ? 'Repos' : 'Pas de repos',
        ),
      ),
    );

    expect(find.text('Pas de repos'), findsOneWidget);
  });
}

ActiveWorkoutSessionUseCases _activeUseCases(
  _FakeActiveSessionRepository repository,
  _FakeClock clock,
) {
  return ActiveWorkoutSessionUseCases(
    sessionRepository: repository,
    templateRepository: _FakeWorkoutTemplateRepository(),
    clock: clock,
    ids: _FakeIds(),
    originDeviceId: 'device-1',
  );
}

CloseWorkoutSessionUseCase _closeUseCase(
  _FakeActiveSessionRepository repository,
  _FakeClock clock,
) {
  return CloseWorkoutSessionUseCase(
    sessionRepository: repository,
    historyRepository: _FakeWorkoutHistoryRepository(),
    clock: clock,
    ids: _FakeIds(),
    originDeviceId: 'device-1',
  );
}

String _sessionSnapshot({int setsCount = 3, int restSeconds = 0}) {
  return jsonEncode({
    'name': 'Séance jambes',
    'programs': [
      {
        'id': 'template-program-1',
        'programNameSnapshot': 'Programme jambes',
        'programSnapshotJson': jsonEncode({
          'exercises': [
            {
              'id': 'exercise-1',
              'exerciseNameSnapshot': 'Squat',
              'setsCount': setsCount,
              'timeEnabled': true,
              'repsEnabled': true,
              'scoreEnabled': true,
              'targetTimeSeconds': 45,
              'targetReps': 10,
              'targetScore': 80,
              'scoreUnitSnapshot': 'kg',
              'restSecondsOverride': restSeconds,
            },
          ],
        }),
      },
    ],
    'overrides': const [],
  });
}

EntityMetadata _metadata(String id) {
  return EntityMetadata(
    id: id,
    createdAt: DateTime.utc(2026, 7, 17),
    updatedAt: DateTime.utc(2026, 7, 17),
    originDeviceId: 'device-1',
  );
}

final class _FakeClock implements Clock {
  _FakeClock(this.value);

  DateTime value;

  @override
  DateTime now() => value;
}

final class _FakeIds implements IdGenerator {
  var _next = 0;

  @override
  String newId() {
    _next += 1;
    return 'id-$_next';
  }
}

final class _FakeActiveSessionRepository implements ActiveSessionRepository {
  ActiveWorkoutSession? session;
  final results = <ActiveSetResult>[];

  @override
  Future<ActiveWorkoutSession?> findById(String id) async {
    return session?.metadata.id == id ? session : null;
  }

  @override
  Future<ActiveWorkoutSession?> findOpen() async => session;

  @override
  Future<List<ActiveRestState>> listRestStates(String sessionId) async {
    return const [];
  }

  @override
  Future<List<ActiveSetResult>> listSetResults(String sessionId) async {
    return results;
  }

  @override
  Future<void> save(ActiveWorkoutSession session) async {
    this.session = session;
  }

  @override
  Future<void> saveRestState(ActiveRestState restState) async {}

  @override
  Future<void> saveSetResult(ActiveSetResult result) async {
    results.add(result);
  }
}

final class _FakeWorkoutTemplateRepository
    implements WorkoutTemplateRepository {
  @override
  Future<WorkoutTemplate?> findById(String id) async => null;

  @override
  Future<List<WorkoutTemplate>> listActive() async => const [];

  @override
  Future<void> replaceComposition(
    WorkoutTemplate template,
    DateTime deletedAt,
  ) async {}

  @override
  Future<void> save(WorkoutTemplate template) async {}

  @override
  Future<void> saveOverride(WorkoutTemplateExerciseOverride override) async {}

  @override
  Future<void> saveProgram(WorkoutTemplateProgram program) async {}
}

final class _FakeWorkoutHistoryRepository implements WorkoutHistoryRepository {
  @override
  Future<void> save(WorkoutHistory history) async {}

  @override
  Future<void> saveSetResult(WorkoutHistorySetResult result) async {}
}