merge(develop): intègre l'écran Historique des séances (ticket #10)

Fusionne feature/#10-ecran-historique — analyze propre, 18/18 tests
verts, build APK debug validé. Clôture le périmètre des écrans Flutter.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

.ideai/tickets/10/carnet.md

@@ -1,7 +1,7 @@
 ---
 issueRef: "#10"
-version: 4
+version: 6
 updatedBy: {"kind":"agent","agent_id":"57695b92-24d0-4876-837c-76116e70a6ae"}
-updatedAt: 1784301394213
+updatedAt: 1784308662161
 ---
 Référence : mémoire "gametime-ux-conception" section 5. Relance : utiliser la séance-modèle source si elle existe encore ; sinon relancer depuis le snapshot historique avec un message explicite ("La séance originale n'existe plus. Une copie va être utilisée."). L'historique doit rester lisible même si exercices/programmes/séances-modèles sources ont été supprimés depuis (snapshot autonome, cf. ticket #3/#4).

.ideai/tickets/10/issue.md

@@ -2,7 +2,7 @@
 id: "4c2a9393-bf0f-4f41-a243-9ce0b4f0c4e1"
 number: 10
 title: "[DevFrontend] Écran Historique des séances"
-status: "open"
+status: "closed"
 priority: "medium"
 sprint: null
 links: [{"target":"#4","kind":"dependsOn"},{"target":"#9","kind":"dependsOn"}]
@@ -10,7 +10,7 @@ agentRefs: [{"agentId":"9933c93a-b8a1-4164-a3bb-7063fdad747d","role":"assigned"}
 createdBy: {"kind":"agent","agent_id":"57695b92-24d0-4876-837c-76116e70a6ae"}
 updatedBy: {"kind":"agent","agent_id":"57695b92-24d0-4876-837c-76116e70a6ae"}
 createdAt: 1784301309677
-updatedAt: 1784301394213
+updatedAt: 1784308662161
-version: 4
+version: 6
 ---
 Liste groupée par période (Aujourd'hui/Cette semaine/Plus ancien) avec résumé par séance. Détail par programme puis exercice puis série (temps/répétitions/score si suivis). Relance : utilise la séance-modèle associée si elle existe encore, sinon relance depuis le snapshot historique avec message explicite. Suppression d'historique (action destructive confirmée). Cf. mémoire "gametime-ux-conception" section 5.

.ideai/tickets/index.json

@@ -113,13 +113,13 @@
       "issueRef": "#10",
       "path": "10",
       "title": "[DevFrontend] Écran Historique des séances",
-      "status": "open",
+      "status": "closed",
       "priority": "medium",
       "sprint": null,
       "assignedAgentIds": [
         "9933c93a-b8a1-4164-a3bb-7063fdad747d"
       ],
-      "updatedAt": 1784301394213
+      "updatedAt": 1784308662161
     },
     {
       "issueRef": "#11",

lib/application/app_bootstrap.dart

@@ -10,6 +10,7 @@ final class AppBootstrap {
     required this.workoutTemplateUseCases,
     required this.activeWorkoutSessionUseCases,
     required this.closeWorkoutSessionUseCase,
+    required this.workoutHistoryUseCases,
   });
 
   final AppDatabase database;
@@ -19,6 +20,7 @@ final class AppBootstrap {
   final WorkoutTemplateUseCases workoutTemplateUseCases;
   final ActiveWorkoutSessionUseCases activeWorkoutSessionUseCases;
   final CloseWorkoutSessionUseCase closeWorkoutSessionUseCase;
+  final WorkoutHistoryUseCases workoutHistoryUseCases;
 
   static Future<AppBootstrap> create() async {
     final database = AppDatabase.open();
@@ -77,6 +79,10 @@ final class AppBootstrap {
         ids: ids,
         originDeviceId: originDeviceId,
       ),
+      workoutHistoryUseCases: WorkoutHistoryUseCases(
+        repository: historyRepository,
+        clock: clock,
+      ),
     );
   }
 

lib/application/ports.dart

@@ -85,6 +85,9 @@ abstract interface class ActiveSessionRepository {
 }
 
 abstract interface class WorkoutHistoryRepository {
+  Future<WorkoutHistory?> findById(String id);
+  Future<List<WorkoutHistory>> listActive();
   Future<void> save(WorkoutHistory history);
   Future<void> saveSetResult(WorkoutHistorySetResult result);
+  Future<void> delete(String id, DateTime deletedAt);
 }

lib/application/use_cases.dart

@@ -638,6 +638,28 @@ final class ActiveWorkoutSessionUseCases {
     return session;
   }
 
+  Future<ActiveWorkoutSession> startFromHistory(WorkoutHistory history) async {
+    final snapshot =
+        jsonDecode(history.historySnapshotJson) as Map<String, dynamic>;
+    final resolvedTemplateSnapshotJson =
+        snapshot['resolvedTemplateSnapshotJson'] as String;
+    final now = clock.now();
+    final session = ActiveWorkoutSession(
+      metadata: _newMetadata(ids, originDeviceId, now),
+      sourceWorkoutTemplateId: null,
+      status: ActiveWorkoutStatus.running,
+      startedAt: now,
+      lastPersistedAt: now,
+      elapsedActiveMs: 0,
+      currentProgramIndex: 0,
+      currentExerciseIndex: 0,
+      currentSetIndex: 0,
+      resolvedTemplateSnapshotJson: resolvedTemplateSnapshotJson,
+    );
+    await sessionRepository.save(session);
+    return session;
+  }
+
   Future<ActiveWorkoutSession> pause(String sessionId) async {
     final session = await _requiredSession(sessionId);
     final paused = session.pause(clock.now());
@@ -851,6 +873,19 @@ final class CloseWorkoutSessionUseCase {
   }
 }
 
+final class WorkoutHistoryUseCases {
+  const WorkoutHistoryUseCases({required this.repository, required this.clock});
+
+  final WorkoutHistoryRepository repository;
+  final Clock clock;
+
+  Future<WorkoutHistory?> findById(String id) => repository.findById(id);
+
+  Future<List<WorkoutHistory>> listActive() => repository.listActive();
+
+  Future<void> delete(String id) => repository.delete(id, clock.now());
+}
+
 EntityMetadata _newMetadata(
   IdGenerator ids,
   String originDeviceId,

lib/infrastructure/local/drift_repositories.dart

@@ -428,6 +428,52 @@ final class DriftWorkoutHistoryRepository implements WorkoutHistoryRepository {
 
   final db.AppDatabase database;
 
+  @override
+  Future<domain.WorkoutHistory?> findById(String id) async {
+    final row =
+        await (database.select(
+              database.workoutHistories,
+            )..where((table) => table.id.equals(id) & table.deletedAt.isNull()))
+            .getSingleOrNull();
+    if (row == null) {
+      return null;
+    }
+    final results =
+        await (database.select(database.workoutHistorySetResults)
+              ..where(
+                (table) =>
+                    table.workoutHistoryId.equals(id) &
+                    table.deletedAt.isNull(),
+              )
+              ..orderBy([
+                (table) => OrderingTerm.asc(table.programIndex),
+                (table) => OrderingTerm.asc(table.exerciseIndex),
+                (table) => OrderingTerm.asc(table.setIndex),
+              ]))
+            .get();
+    return _workoutHistoryFromRow(
+      row,
+      results.map(_workoutHistorySetResultFromRow).toList(),
+    );
+  }
+
+  @override
+  Future<List<domain.WorkoutHistory>> listActive() async {
+    final rows =
+        await (database.select(database.workoutHistories)
+              ..where((table) => table.deletedAt.isNull())
+              ..orderBy([(table) => OrderingTerm.desc(table.startedAt)]))
+            .get();
+    final histories = <domain.WorkoutHistory>[];
+    for (final row in rows) {
+      final history = await findById(row.id);
+      if (history != null) {
+        histories.add(history);
+      }
+    }
+    return histories;
+  }
+
   @override
   Future<void> save(domain.WorkoutHistory history) async {
     await database
@@ -444,6 +490,28 @@ final class DriftWorkoutHistoryRepository implements WorkoutHistoryRepository {
         .into(database.workoutHistorySetResults)
         .insertOnConflictUpdate(_workoutHistorySetResultCompanion(result));
   }
+
+  @override
+  Future<void> delete(String id, DateTime deletedAt) async {
+    await database.transaction(() async {
+      await (database.update(
+        database.workoutHistories,
+      )..where((table) => table.id.equals(id))).write(
+        db.WorkoutHistoriesCompanion(
+          deletedAt: Value(deletedAt),
+          updatedAt: Value(deletedAt),
+        ),
+      );
+      await (database.update(
+        database.workoutHistorySetResults,
+      )..where((table) => table.workoutHistoryId.equals(id))).write(
+        db.WorkoutHistorySetResultsCompanion(
+          deletedAt: Value(deletedAt),
+          updatedAt: Value(deletedAt),
+        ),
+      );
+    });
+  }
 }
 
 domain.EntityMetadata _metadataFromRow(dynamic row) {
@@ -986,6 +1054,53 @@ db.WorkoutHistorySetResultsCompanion _workoutHistorySetResultCompanion(
   );
 }
 
+domain.WorkoutHistory _workoutHistoryFromRow(
+  db.WorkoutHistory row,
+  List<domain.WorkoutHistorySetResult> results,
+) {
+  return domain.WorkoutHistory(
+    metadata: _metadataFromRow(row),
+    sourceWorkoutTemplateId: row.sourceWorkoutTemplateId,
+    sourceActiveWorkoutSessionId: row.sourceActiveWorkoutSessionId,
+    nameSnapshot: row.nameSnapshot,
+    startedAt: row.startedAt,
+    endedAt: row.endedAt,
+    totalActiveMs: row.totalActiveMs,
+    completed: row.completed,
+    historySnapshotJson: row.historySnapshotJson,
+    results: results,
+  );
+}
+
+domain.WorkoutHistorySetResult _workoutHistorySetResultFromRow(
+  db.WorkoutHistorySetResult row,
+) {
+  return domain.WorkoutHistorySetResult(
+    metadata: _metadataFromRow(row),
+    workoutHistoryId: row.workoutHistoryId,
+    programSnapshotId: row.programSnapshotId,
+    exerciseSnapshotId: row.exerciseSnapshotId,
+    programIndex: row.programIndex,
+    exerciseIndex: row.exerciseIndex,
+    setIndex: row.setIndex,
+    programNameSnapshot: row.programNameSnapshot,
+    exerciseNameSnapshot: row.exerciseNameSnapshot,
+    timeEnabledSnapshot: row.timeEnabledSnapshot,
+    repsEnabledSnapshot: row.repsEnabledSnapshot,
+    scoreEnabledSnapshot: row.scoreEnabledSnapshot,
+    targetTimeSecondsSnapshot: row.targetTimeSecondsSnapshot,
+    targetRepsSnapshot: row.targetRepsSnapshot,
+    targetScoreSnapshot: row.targetScoreSnapshot,
+    actualTimeMs: row.actualTimeMs,
+    actualReps: row.actualReps,
+    actualScore: row.actualScore,
+    scoreLabelSnapshot: row.scoreLabelSnapshot,
+    scoreUnitSnapshot: row.scoreUnitSnapshot,
+    startedAt: row.startedAt,
+    completedAt: row.completedAt,
+  );
+}
+
 String _syncStateToDb(domain.SyncState state) => switch (state) {
   domain.SyncState.localOnly => 'localOnly',
   domain.SyncState.dirty => 'dirty',

lib/presentation/history_screen.dart

@@ -0,0 +1,430 @@
+import 'dart:convert';
+
+import 'package:flutter/material.dart';
+
+import '../application/application.dart';
+import '../domain/domain.dart';
+import 'workout_execution_screen.dart';
+
+final class HistoryListScreen extends StatefulWidget {
+  const HistoryListScreen({
+    required this.historyUseCases,
+    required this.workoutTemplateUseCases,
+    required this.activeUseCases,
+    required this.closeUseCase,
+    super.key,
+  });
+
+  final WorkoutHistoryUseCases historyUseCases;
+  final WorkoutTemplateUseCases workoutTemplateUseCases;
+  final ActiveWorkoutSessionUseCases activeUseCases;
+  final CloseWorkoutSessionUseCase closeUseCase;
+
+  @override
+  State<HistoryListScreen> createState() => _HistoryListScreenState();
+}
+
+final class _HistoryListScreenState extends State<HistoryListScreen> {
+  late Future<List<WorkoutHistory>> _histories;
+
+  @override
+  void initState() {
+    super.initState();
+    _histories = widget.historyUseCases.listActive();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+      appBar: AppBar(title: const Text('Historique')),
+      body: FutureBuilder<List<WorkoutHistory>>(
+        future: _histories,
+        builder: (context, snapshot) {
+          if (snapshot.connectionState != ConnectionState.done) {
+            return const Center(child: CircularProgressIndicator());
+          }
+          final histories = snapshot.data ?? const <WorkoutHistory>[];
+          if (histories.isEmpty) {
+            return const _CenteredMessage(
+              title: 'Aucune séance terminée',
+              message: 'Les séances terminées apparaîtront ici.',
+            );
+          }
+          final groups = groupHistoriesByPeriod(histories, DateTime.now());
+          return ListView(
+            children: [
+              for (final group in groups.entries) ...[
+                Padding(
+                  padding: const EdgeInsets.fromLTRB(16, 20, 16, 8),
+                  child: Text(
+                    group.key,
+                    style: Theme.of(context).textTheme.titleMedium,
+                  ),
+                ),
+                for (final history in group.value)
+                  ListTile(
+                    title: Text(history.nameSnapshot),
+                    subtitle: Text(
+                      '${_formatDateTime(history.startedAt)} · '
+                      '${_formatDurationMs(history.totalActiveMs)} · '
+                      '${_historySummary(history)}',
+                    ),
+                    trailing: const Icon(Icons.chevron_right),
+                    onTap: () => _openDetail(history),
+                  ),
+              ],
+            ],
+          );
+        },
+      ),
+    );
+  }
+
+  Future<void> _openDetail(WorkoutHistory history) async {
+    final deleted = await Navigator.of(context).push<bool>(
+      MaterialPageRoute(
+        builder: (context) => HistoryDetailScreen(
+          history: history,
+          historyUseCases: widget.historyUseCases,
+          workoutTemplateUseCases: widget.workoutTemplateUseCases,
+          activeUseCases: widget.activeUseCases,
+          closeUseCase: widget.closeUseCase,
+        ),
+      ),
+    );
+    if (deleted == true) {
+      setState(() {
+        _histories = widget.historyUseCases.listActive();
+      });
+    }
+  }
+}
+
+final class HistoryDetailScreen extends StatelessWidget {
+  const HistoryDetailScreen({
+    required this.history,
+    required this.historyUseCases,
+    required this.workoutTemplateUseCases,
+    required this.activeUseCases,
+    required this.closeUseCase,
+    super.key,
+  });
+
+  final WorkoutHistory history;
+  final WorkoutHistoryUseCases historyUseCases;
+  final WorkoutTemplateUseCases workoutTemplateUseCases;
+  final ActiveWorkoutSessionUseCases activeUseCases;
+  final CloseWorkoutSessionUseCase closeUseCase;
+
+  @override
+  Widget build(BuildContext context) {
+    final detail = HistoryDetailData.fromHistory(history);
+    return Scaffold(
+      appBar: AppBar(title: Text(history.nameSnapshot)),
+      body: ListView(
+        padding: const EdgeInsets.all(16),
+        children: [
+          Text(_formatDateTime(history.startedAt)),
+          const SizedBox(height: 4),
+          Text('Durée : ${_formatDurationMs(history.totalActiveMs)}'),
+          const SizedBox(height: 16),
+          for (final program in detail.programs) ...[
+            Text(program.name, style: Theme.of(context).textTheme.titleMedium),
+            const SizedBox(height: 8),
+            for (final exercise in program.exercises) ...[
+              Text(
+                exercise.name,
+                style: Theme.of(context).textTheme.titleSmall,
+              ),
+              for (final set in exercise.sets)
+                ListTile(
+                  dense: true,
+                  title: Text('Série ${set.setIndex + 1}'),
+                  subtitle: Text(set.summary),
+                ),
+            ],
+            const SizedBox(height: 12),
+          ],
+          const SizedBox(height: 16),
+          FilledButton(
+            onPressed: () => _restart(context),
+            child: const Text('Relancer cette séance'),
+          ),
+          const SizedBox(height: 8),
+          OutlinedButton(
+            onPressed: () => _confirmDelete(context),
+            child: const Text("Supprimer de l'historique"),
+          ),
+        ],
+      ),
+    );
+  }
+
+  Future<void> _restart(BuildContext context) async {
+    ActiveWorkoutSession session;
+    final sourceId = history.sourceWorkoutTemplateId;
+    if (sourceId != null &&
+        await workoutTemplateUseCases.findById(sourceId) != null) {
+      session = await activeUseCases.startFromTemplate(sourceId);
+    } else {
+      if (context.mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(
+            content: Text(
+              "La séance originale n'existe plus. Une copie va être utilisée.",
+            ),
+          ),
+        );
+      }
+      session = await activeUseCases.startFromHistory(history);
+    }
+    if (!context.mounted) return;
+    await Navigator.of(context).push(
+      MaterialPageRoute(
+        builder: (context) => WorkoutExecutionScreen(
+          initialSession: session,
+          activeUseCases: activeUseCases,
+          closeUseCase: closeUseCase,
+          historyUseCases: historyUseCases,
+          workoutTemplateUseCases: workoutTemplateUseCases,
+        ),
+      ),
+    );
+  }
+
+  Future<void> _confirmDelete(BuildContext context) async {
+    final confirmed = await showDialog<bool>(
+      context: context,
+      builder: (context) => AlertDialog(
+        title: const Text("Supprimer de l'historique ?"),
+        content: const Text('Cette action est définitive.'),
+        actions: [
+          TextButton(
+            onPressed: () => Navigator.of(context).pop(false),
+            child: const Text('Annuler'),
+          ),
+          FilledButton(
+            onPressed: () => Navigator.of(context).pop(true),
+            child: const Text('Supprimer'),
+          ),
+        ],
+      ),
+    );
+    if (confirmed != true) return;
+    await historyUseCases.delete(history.metadata.id);
+    if (!context.mounted) return;
+    Navigator.of(context).pop(true);
+  }
+}
+
+final class HistoryDetailData {
+  const HistoryDetailData({required this.programs});
+
+  factory HistoryDetailData.fromHistory(WorkoutHistory history) {
+    final snapshot =
+        jsonDecode(history.historySnapshotJson) as Map<String, dynamic>;
+    final resolved =
+        jsonDecode(snapshot['resolvedTemplateSnapshotJson'] as String)
+            as Map<String, dynamic>;
+    final rawResults = history.results.isNotEmpty
+        ? history.results.map(_resultFromDomain).toList()
+        : (snapshot['results'] as List<dynamic>? ?? const [])
+              .cast<Map<String, dynamic>>();
+    final programs = <HistoryProgramDetail>[];
+    final rawPrograms = resolved['programs'] as List<dynamic>? ?? const [];
+    for (
+      var programIndex = 0;
+      programIndex < rawPrograms.length;
+      programIndex++
+    ) {
+      final rawProgram = rawPrograms[programIndex] as Map<String, dynamic>;
+      final programSnapshot =
+          jsonDecode(rawProgram['programSnapshotJson'] as String)
+              as Map<String, dynamic>;
+      final exercises = <HistoryExerciseDetail>[];
+      final rawExercises =
+          programSnapshot['exercises'] as List<dynamic>? ?? const [];
+      for (
+        var exerciseIndex = 0;
+        exerciseIndex < rawExercises.length;
+        exerciseIndex++
+      ) {
+        final rawExercise = rawExercises[exerciseIndex] as Map<String, dynamic>;
+        final exerciseResults = rawResults.where((result) {
+          return result['programIndex'] == programIndex &&
+              result['exerciseIndex'] == exerciseIndex;
+        }).toList();
+        exercises.add(
+          HistoryExerciseDetail(
+            name: rawExercise['exerciseNameSnapshot'] as String,
+            sets: [
+              for (final result in exerciseResults)
+                HistorySetDetail.fromSnapshot(rawExercise, result),
+            ],
+          ),
+        );
+      }
+      programs.add(
+        HistoryProgramDetail(
+          name: rawProgram['programNameSnapshot'] as String,
+          exercises: exercises,
+        ),
+      );
+    }
+    return HistoryDetailData(programs: programs);
+  }
+
+  final List<HistoryProgramDetail> programs;
+}
+
+final class HistoryProgramDetail {
+  const HistoryProgramDetail({required this.name, required this.exercises});
+
+  final String name;
+  final List<HistoryExerciseDetail> exercises;
+}
+
+final class HistoryExerciseDetail {
+  const HistoryExerciseDetail({required this.name, required this.sets});
+
+  final String name;
+  final List<HistorySetDetail> sets;
+}
+
+final class HistorySetDetail {
+  const HistorySetDetail({required this.setIndex, required this.summary});
+
+  factory HistorySetDetail.fromSnapshot(
+    Map<String, dynamic> exercise,
+    Map<String, dynamic> result,
+  ) {
+    final parts = <String>[];
+    if (exercise['timeEnabled'] == true && result['actualTimeMs'] != null) {
+      parts.add('Temps ${_formatDurationMs(result['actualTimeMs'] as int)}');
+    }
+    if (exercise['repsEnabled'] == true && result['actualReps'] != null) {
+      parts.add('${result['actualReps']} répétitions');
+    }
+    if (exercise['scoreEnabled'] == true && result['actualScore'] != null) {
+      final unit = exercise['scoreUnitSnapshot'] as String?;
+      final value = _formatScoreValue(result['actualScore'] as num);
+      parts.add(unit == null ? 'Score $value' : 'Score $value $unit');
+    }
+    return HistorySetDetail(
+      setIndex: result['setIndex'] as int,
+      summary: parts.isEmpty ? 'Aucune mesure saisie' : parts.join(' · '),
+    );
+  }
+
+  final int setIndex;
+  final String summary;
+}
+
+Map<String, List<WorkoutHistory>> groupHistoriesByPeriod(
+  List<WorkoutHistory> histories,
+  DateTime now,
+) {
+  final today = DateTime(now.year, now.month, now.day);
+  final weekStart = today.subtract(Duration(days: today.weekday - 1));
+  final groups = <String, List<WorkoutHistory>>{
+    "Aujourd'hui": [],
+    'Cette semaine': [],
+    'Plus ancien': [],
+  };
+  for (final history in histories) {
+    final startedDay = DateTime(
+      history.startedAt.year,
+      history.startedAt.month,
+      history.startedAt.day,
+    );
+    if (startedDay == today) {
+      groups["Aujourd'hui"]!.add(history);
+    } else if (startedDay.isAfter(weekStart) || startedDay == weekStart) {
+      groups['Cette semaine']!.add(history);
+    } else {
+      groups['Plus ancien']!.add(history);
+    }
+  }
+  groups.removeWhere((key, value) => value.isEmpty);
+  return groups;
+}
+
+Map<String, dynamic> _resultFromDomain(WorkoutHistorySetResult result) {
+  return {
+    'programIndex': result.programIndex,
+    'exerciseIndex': result.exerciseIndex,
+    'setIndex': result.setIndex,
+    'actualTimeMs': result.actualTimeMs,
+    'actualReps': result.actualReps,
+    'actualScore': result.actualScore,
+  };
+}
+
+String _historySummary(WorkoutHistory history) {
+  final snapshot =
+      jsonDecode(history.historySnapshotJson) as Map<String, dynamic>;
+  final rawResults = history.results.isNotEmpty
+      ? history.results.map(_resultFromDomain).toList()
+      : (snapshot['results'] as List<dynamic>? ?? const [])
+            .cast<Map<String, dynamic>>();
+  final scoreCount = rawResults
+      .where((result) => result['actualScore'] != null)
+      .length;
+  return '${rawResults.length} séries · $scoreCount score${scoreCount > 1 ? 's' : ''}';
+}
+
+String _formatScoreValue(num value) {
+  if (value is int || value == value.roundToDouble()) {
+    return value.round().toString();
+  }
+  return value.toString();
+}
+
+String _formatDateTime(DateTime value) {
+  final day = value.day.toString().padLeft(2, '0');
+  final month = value.month.toString().padLeft(2, '0');
+  final hour = value.hour.toString().padLeft(2, '0');
+  final minute = value.minute.toString().padLeft(2, '0');
+  return '$day/$month/${value.year} $hour:$minute';
+}
+
+String _formatDurationMs(int milliseconds) {
+  final duration = Duration(milliseconds: milliseconds);
+  final minutes = duration.inMinutes.remainder(60).toString().padLeft(2, '0');
+  final seconds = duration.inSeconds.remainder(60).toString().padLeft(2, '0');
+  final hours = duration.inHours;
+  if (hours > 0) {
+    return '$hours:$minutes:$seconds';
+  }
+  return '$minutes:$seconds';
+}
+
+final class _CenteredMessage extends StatelessWidget {
+  const _CenteredMessage({required this.title, this.message});
+
+  final String title;
+  final String? message;
+
+  @override
+  Widget build(BuildContext context) {
+    return Center(
+      child: Padding(
+        padding: const EdgeInsets.all(24),
+        child: Column(
+          mainAxisSize: MainAxisSize.min,
+          children: [
+            Text(
+              title,
+              textAlign: TextAlign.center,
+              style: Theme.of(context).textTheme.titleMedium,
+            ),
+            if (message != null) ...[
+              const SizedBox(height: 8),
+              Text(message!, textAlign: TextAlign.center),
+            ],
+          ],
+        ),
+      ),
+    );
+  }
+}

lib/presentation/home_screen.dart

@@ -3,6 +3,7 @@ import 'package:flutter/material.dart';
 import '../application/app_bootstrap.dart';
 import '../domain/domain.dart';
 import 'exercise_library_screen.dart';
+import 'history_screen.dart';
 import 'program_screen.dart';
 import 'workout_execution_screen.dart';
 import 'workout_template_screen.dart';
@@ -97,6 +98,23 @@ final class _HomeScreenState extends State<HomeScreen> {
                   programUseCases: widget.bootstrap.programUseCases,
                   activeUseCases: widget.bootstrap.activeWorkoutSessionUseCases,
                   closeUseCase: widget.bootstrap.closeWorkoutSessionUseCase,
+                  historyUseCases: widget.bootstrap.workoutHistoryUseCases,
+                ),
+              ),
+            ),
+          ),
+          ListTile(
+            leading: const Icon(Icons.history),
+            title: const Text('Historique'),
+            trailing: const Icon(Icons.chevron_right),
+            onTap: () => Navigator.of(context).push(
+              MaterialPageRoute(
+                builder: (context) => HistoryListScreen(
+                  historyUseCases: widget.bootstrap.workoutHistoryUseCases,
+                  workoutTemplateUseCases:
+                      widget.bootstrap.workoutTemplateUseCases,
+                  activeUseCases: widget.bootstrap.activeWorkoutSessionUseCases,
+                  closeUseCase: widget.bootstrap.closeWorkoutSessionUseCase,
                 ),
               ),
             ),
@@ -113,6 +131,8 @@ final class _HomeScreenState extends State<HomeScreen> {
           initialSession: session,
           activeUseCases: widget.bootstrap.activeWorkoutSessionUseCases,
           closeUseCase: widget.bootstrap.closeWorkoutSessionUseCase,
+          historyUseCases: widget.bootstrap.workoutHistoryUseCases,
+          workoutTemplateUseCases: widget.bootstrap.workoutTemplateUseCases,
         ),
       ),
     );

lib/presentation/presentation.dart

@@ -1,5 +1,6 @@
 export 'game_time_app.dart';
 export 'exercise_library_screen.dart';
+export 'history_screen.dart';
 export 'home_screen.dart';
 export 'program_screen.dart';
 export 'workout_execution_screen.dart';

lib/presentation/workout_execution_screen.dart

@@ -5,6 +5,7 @@ import 'package:flutter/material.dart';
 
 import '../application/application.dart';
 import '../domain/domain.dart';
+import 'history_screen.dart';
 
 enum WorkoutExecutionMode { active, rest, paused, finished }
 
@@ -13,12 +14,16 @@ final class WorkoutExecutionScreen extends StatefulWidget {
     required this.initialSession,
     required this.activeUseCases,
     required this.closeUseCase,
+    required this.historyUseCases,
+    required this.workoutTemplateUseCases,
     super.key,
   });
 
   final ActiveWorkoutSession initialSession;
   final ActiveWorkoutSessionUseCases activeUseCases;
   final CloseWorkoutSessionUseCase closeUseCase;
+  final WorkoutHistoryUseCases historyUseCases;
+  final WorkoutTemplateUseCases workoutTemplateUseCases;
 
   @override
   State<WorkoutExecutionScreen> createState() => _WorkoutExecutionScreenState();
@@ -30,6 +35,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
   late WorkoutExecutionMode _mode;
   Timer? _ticker;
   Timer? _restTicker;
+  WorkoutHistory? _completedHistory;
   var _reps = 0;
   final _scoreController = TextEditingController();
   var _remainingRestSeconds = 0;
@@ -232,9 +238,12 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
           const SizedBox(height: 12),
           Text('Temps total : ${_formatDuration(elapsed)}'),
           const SizedBox(height: 24),
-          OutlinedButton(onPressed: () {}, child: const Text('Voir le détail')),
           OutlinedButton(
-            onPressed: () {},
+            onPressed: _completedHistory == null ? null : _openHistoryDetail,
+            child: const Text('Voir le détail'),
+          ),
+          OutlinedButton(
+            onPressed: _completedHistory == null ? null : _restartCompleted,
             child: const Text('Relancer cette séance'),
           ),
           FilledButton(
@@ -367,7 +376,7 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
 
   Future<void> _complete() async {
     _session = await widget.activeUseCases.complete(_session.metadata.id);
-    await widget.closeUseCase.close(
+    _completedHistory = await widget.closeUseCase.close(
       sessionId: _session.metadata.id,
       nameSnapshot: _plan.name,
       completed: true,
@@ -375,6 +384,56 @@ final class _WorkoutExecutionScreenState extends State<WorkoutExecutionScreen> {
     if (!mounted) return;
     setState(() => _mode = WorkoutExecutionMode.finished);
   }
+
+  Future<void> _openHistoryDetail() async {
+    final history = _completedHistory;
+    if (history == null) return;
+    await Navigator.of(context).push(
+      MaterialPageRoute(
+        builder: (context) => HistoryDetailScreen(
+          history: history,
+          historyUseCases: widget.historyUseCases,
+          workoutTemplateUseCases: widget.workoutTemplateUseCases,
+          activeUseCases: widget.activeUseCases,
+          closeUseCase: widget.closeUseCase,
+        ),
+      ),
+    );
+  }
+
+  Future<void> _restartCompleted() async {
+    final history = _completedHistory;
+    if (history == null) return;
+    ActiveWorkoutSession session;
+    final sourceId = history.sourceWorkoutTemplateId;
+    if (sourceId != null &&
+        await widget.workoutTemplateUseCases.findById(sourceId) != null) {
+      session = await widget.activeUseCases.startFromTemplate(sourceId);
+    } else {
+      if (mounted) {
+        ScaffoldMessenger.of(context).showSnackBar(
+          const SnackBar(
+            content: Text(
+              "La séance originale n'existe plus. Une copie va être utilisée.",
+            ),
+          ),
+        );
+      }
+      session = await widget.activeUseCases.startFromHistory(history);
+    }
+    if (!mounted) return;
+    await Navigator.of(context).pushReplacement(
+      MaterialPageRoute(
+        builder: (context) => WorkoutExecutionScreen(
+          initialSession: session,
+          activeUseCases: widget.activeUseCases,
+          closeUseCase: widget.closeUseCase,
+          historyUseCases: widget.historyUseCases,
+          workoutTemplateUseCases: widget.workoutTemplateUseCases,
+        ),
+      ),
+    );
+  }
 }
 
 final class SetMeasureInput extends StatelessWidget {

lib/presentation/workout_template_screen.dart

@@ -12,6 +12,7 @@ final class WorkoutTemplateListScreen extends StatefulWidget {
     required this.programUseCases,
     required this.activeUseCases,
     required this.closeUseCase,
+    required this.historyUseCases,
     super.key,
   });
 
@@ -19,6 +20,7 @@ final class WorkoutTemplateListScreen extends StatefulWidget {
   final ProgramUseCases programUseCases;
   final ActiveWorkoutSessionUseCases activeUseCases;
   final CloseWorkoutSessionUseCase closeUseCase;
+  final WorkoutHistoryUseCases historyUseCases;
 
   @override
   State<WorkoutTemplateListScreen> createState() =>
@@ -119,6 +121,8 @@ final class _WorkoutTemplateListScreenState
           initialSession: session,
           activeUseCases: widget.activeUseCases,
           closeUseCase: widget.closeUseCase,
+          historyUseCases: widget.historyUseCases,
+          workoutTemplateUseCases: widget.workoutTemplateUseCases,
         ),
       ),
     );

test/presentation/history_screen_test.dart

@@ -0,0 +1,305 @@
+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('la liste groupe les séances par période', (tester) async {
+    final groups = groupHistoriesByPeriod([
+      _history(id: 'today', startedAt: DateTime.utc(2026, 7, 17, 9)),
+      _history(id: 'week', startedAt: DateTime.utc(2026, 7, 15, 9)),
+      _history(id: 'old', startedAt: DateTime.utc(2026, 7, 1, 9)),
+    ], DateTime.utc(2026, 7, 17, 12));
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: Scaffold(
+          body: Column(children: [for (final key in groups.keys) Text(key)]),
+        ),
+      ),
+    );
+
+    expect(find.text("Aujourd'hui"), findsOneWidget);
+    expect(find.text('Cette semaine'), findsOneWidget);
+    expect(find.text('Plus ancien'), findsOneWidget);
+  });
+
+  testWidgets('le détail affiche temps répétitions et score avec unité', (
+    tester,
+  ) async {
+    await tester.pumpWidget(
+      MaterialApp(
+        home: HistoryDetailScreen(
+          history: _history(id: 'history-1'),
+          historyUseCases: _historyUseCases(_FakeWorkoutHistoryRepository()),
+          workoutTemplateUseCases: _workoutTemplateUseCases(),
+          activeUseCases: _activeUseCases(),
+          closeUseCase: _closeUseCase(),
+        ),
+      ),
+    );
+
+    expect(find.text('Programme jambes'), findsOneWidget);
+    expect(find.text('Squat'), findsOneWidget);
+    expect(
+      find.text('Temps 00:45 · 10 répétitions · Score 80 kg'),
+      findsOneWidget,
+    );
+  });
+
+  testWidgets('la suppression demande une confirmation', (tester) async {
+    final repository = _FakeWorkoutHistoryRepository();
+
+    await tester.pumpWidget(
+      MaterialApp(
+        home: HistoryDetailScreen(
+          history: _history(id: 'history-1'),
+          historyUseCases: _historyUseCases(repository),
+          workoutTemplateUseCases: _workoutTemplateUseCases(),
+          activeUseCases: _activeUseCases(),
+          closeUseCase: _closeUseCase(),
+        ),
+      ),
+    );
+
+    await tester.tap(find.text("Supprimer de l'historique"));
+    await tester.pumpAndSettle();
+
+    expect(repository.deletedIds, isEmpty);
+    expect(find.text("Supprimer de l'historique ?"), findsOneWidget);
+
+    await tester.tap(find.text('Annuler'));
+    await tester.pumpAndSettle();
+
+    expect(repository.deletedIds, isEmpty);
+
+    await tester.tap(find.text("Supprimer de l'historique"));
+    await tester.pumpAndSettle();
+    await tester.tap(find.widgetWithText(FilledButton, 'Supprimer'));
+    await tester.pumpAndSettle();
+
+    expect(repository.deletedIds, ['history-1']);
+  });
+}
+
+WorkoutHistory _history({required String id, DateTime? startedAt}) {
+  final start = startedAt ?? DateTime.utc(2026, 7, 17, 10);
+  return WorkoutHistory(
+    metadata: _metadata(id),
+    sourceWorkoutTemplateId: 'template-1',
+    sourceActiveWorkoutSessionId: 'session-1',
+    nameSnapshot: 'Séance jambes',
+    startedAt: start,
+    endedAt: start.add(const Duration(minutes: 30)),
+    totalActiveMs: 1800000,
+    completed: true,
+    historySnapshotJson: jsonEncode({
+      'sessionId': 'session-1',
+      'resolvedTemplateSnapshotJson': _resolvedSnapshot(),
+      'results': [
+        {
+          'programSnapshotId': 'program-snapshot-1',
+          'exerciseSnapshotId': 'exercise-snapshot-1',
+          'programIndex': 0,
+          'exerciseIndex': 0,
+          'setIndex': 0,
+          'actualTimeMs': 45000,
+          'actualReps': 10,
+          'actualScore': 80,
+          'scoreLabelSnapshot': 'Charge',
+          'scoreUnitSnapshot': 'kg',
+        },
+      ],
+    }),
+  );
+}
+
+String _resolvedSnapshot() {
+  return jsonEncode({
+    'name': 'Séance jambes',
+    'programs': [
+      {
+        'id': 'program-snapshot-1',
+        'programNameSnapshot': 'Programme jambes',
+        'programSnapshotJson': jsonEncode({
+          'exercises': [
+            {
+              'id': 'exercise-snapshot-1',
+              'exerciseNameSnapshot': 'Squat',
+              'setsCount': 1,
+              'timeEnabled': true,
+              'repsEnabled': true,
+              'scoreEnabled': true,
+              'targetTimeSeconds': 45,
+              'targetReps': 10,
+              'targetScore': 80,
+              'scoreLabelSnapshot': 'Charge',
+              'scoreUnitSnapshot': 'kg',
+              'restSecondsOverride': 0,
+            },
+          ],
+        }),
+      },
+    ],
+    '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',
+  );
+}
+
+WorkoutHistoryUseCases _historyUseCases(
+  _FakeWorkoutHistoryRepository repository,
+) {
+  return WorkoutHistoryUseCases(
+    repository: repository,
+    clock: _FakeClock(DateTime.utc(2026, 7, 17)),
+  );
+}
+
+WorkoutTemplateUseCases _workoutTemplateUseCases() {
+  return WorkoutTemplateUseCases(
+    templateRepository: _FakeWorkoutTemplateRepository(),
+    programRepository: _FakeProgramRepository(),
+    clock: _FakeClock(DateTime.utc(2026, 7, 17)),
+    ids: _FakeIds(),
+    originDeviceId: 'device-1',
+  );
+}
+
+ActiveWorkoutSessionUseCases _activeUseCases() {
+  return ActiveWorkoutSessionUseCases(
+    sessionRepository: _FakeActiveSessionRepository(),
+    templateRepository: _FakeWorkoutTemplateRepository(),
+    clock: _FakeClock(DateTime.utc(2026, 7, 17)),
+    ids: _FakeIds(),
+    originDeviceId: 'device-1',
+  );
+}
+
+CloseWorkoutSessionUseCase _closeUseCase() {
+  return CloseWorkoutSessionUseCase(
+    sessionRepository: _FakeActiveSessionRepository(),
+    historyRepository: _FakeWorkoutHistoryRepository(),
+    clock: _FakeClock(DateTime.utc(2026, 7, 17)),
+    ids: _FakeIds(),
+    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 _FakeWorkoutHistoryRepository implements WorkoutHistoryRepository {
+  final deletedIds = <String>[];
+
+  @override
+  Future<void> delete(String id, DateTime deletedAt) async {
+    deletedIds.add(id);
+  }
+
+  @override
+  Future<WorkoutHistory?> findById(String id) async => null;
+
+  @override
+  Future<List<WorkoutHistory>> listActive() async => const [];
+
+  @override
+  Future<void> save(WorkoutHistory history) async {}
+
+  @override
+  Future<void> saveSetResult(WorkoutHistorySetResult result) async {}
+}
+
+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 _FakeProgramRepository implements ProgramRepository {
+  @override
+  Future<Program?> findById(String id) async => null;
+
+  @override
+  Future<List<Program>> listActive() async => const [];
+
+  @override
+  Future<void> replaceExercises(Program program, DateTime deletedAt) async {}
+
+  @override
+  Future<void> save(Program program) async {}
+
+  @override
+  Future<void> saveExercise(ProgramExercise exercise) async {}
+}
+
+final class _FakeActiveSessionRepository implements ActiveSessionRepository {
+  @override
+  Future<ActiveWorkoutSession?> findById(String id) async => null;
+
+  @override
+  Future<ActiveWorkoutSession?> findOpen() async => null;
+
+  @override
+  Future<List<ActiveRestState>> listRestStates(String sessionId) async {
+    return const [];
+  }
+
+  @override
+  Future<List<ActiveSetResult>> listSetResults(String sessionId) async {
+    return const [];
+  }
+
+  @override
+  Future<void> save(ActiveWorkoutSession session) async {}
+
+  @override
+  Future<void> saveRestState(ActiveRestState restState) async {}
+
+  @override
+  Future<void> saveSetResult(ActiveSetResult result) async {}
+}

test/presentation/workout_execution_screen_test.dart

@@ -33,6 +33,8 @@ void main() {
             clock,
           ),
           closeUseCase: _closeUseCase(_FakeActiveSessionRepository(), clock),
+          historyUseCases: _historyUseCases(clock),
+          workoutTemplateUseCases: _workoutTemplateUseCases(),
         ),
       ),
     );
@@ -141,6 +143,23 @@ CloseWorkoutSessionUseCase _closeUseCase(
   );
 }
 
+WorkoutHistoryUseCases _historyUseCases(_FakeClock clock) {
+  return WorkoutHistoryUseCases(
+    repository: _FakeWorkoutHistoryRepository(),
+    clock: clock,
+  );
+}
+
+WorkoutTemplateUseCases _workoutTemplateUseCases() {
+  return WorkoutTemplateUseCases(
+    templateRepository: _FakeWorkoutTemplateRepository(),
+    programRepository: _FakeProgramRepository(),
+    clock: _FakeClock(DateTime.utc(2026, 7, 17)),
+    ids: _FakeIds(),
+    originDeviceId: 'device-1',
+  );
+}
+
 String _sessionSnapshot({int setsCount = 3, int restSeconds = 0}) {
   return jsonEncode({
     'name': 'Séance jambes',
@@ -260,9 +279,35 @@ final class _FakeWorkoutTemplateRepository
 }
 
 final class _FakeWorkoutHistoryRepository implements WorkoutHistoryRepository {
+  @override
+  Future<void> delete(String id, DateTime deletedAt) async {}
+
+  @override
+  Future<WorkoutHistory?> findById(String id) async => null;
+
+  @override
+  Future<List<WorkoutHistory>> listActive() async => const [];
+
   @override
   Future<void> save(WorkoutHistory history) async {}
 
   @override
   Future<void> saveSetResult(WorkoutHistorySetResult result) async {}
 }
+
+final class _FakeProgramRepository implements ProgramRepository {
+  @override
+  Future<void> replaceExercises(Program program, DateTime deletedAt) async {}
+
+  @override
+  Future<Program?> findById(String id) async => null;
+
+  @override
+  Future<List<Program>> listActive() async => const [];
+
+  @override
+  Future<void> save(Program program) async {}
+
+  @override
+  Future<void> saveExercise(ProgramExercise exercise) async {}
+}