feat: Calculer automatiquement les moyennes après chaque saisie de notes

Les enseignants ont besoin de moyennes à jour immédiatement après la publication ou modification des notes, sans attendre un batch nocturne. Le système recalcule via Domain Events synchrones : statistiques d'évaluation (min/max/moyenne/médiane), moyennes matières pondérées (normalisation /20), et moyenne générale par élève. Les résultats sont stockés dans des tables dénormalisées avec cache Redis (TTL 5 min). Trois endpoints API exposent les données avec contrôle d'accès par rôle. Une commande console permet le backfill des données historiques au déploiement.
2026-03-30 06:22:03 +02:00
parent b70d5ec2ad
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--- a/_bmad-output/implementation-artifacts/6-3-calcul-automatique-des-moyennes.md
+++ b/_bmad-output/implementation-artifacts/6-3-calcul-automatique-des-moyennes.md
@@ -0,0 +1,277 @@
+# Story 6.3 : Calcul Automatique des Moyennes
+
+Status: in-progress
+
+---
+
+## Story
+
+En tant que **système**,
+Je veux **calculer automatiquement les moyennes par matière et générales**,
+Afin de **fournir des données actualisées instantanément après chaque saisie (FR13)**.
+
+---
+
+## Critères d'Acceptation
+
+### AC1 : Recalcul après publication
+- [x] Note publiée → moyenne matière élève recalculée
+- [x] Moyenne générale élève recalculée
+- [x] Moyenne de classe pour l'évaluation recalculée
+- [ ] Calcul < 10ms (NFR-P9)
+
+### AC2 : Calcul moyenne matière
+- [x] Formule : Σ(note × coef) / Σ(coef)
+- [x] Coefficients de chaque évaluation appliqués
+- [x] Notes "absent" et "dispensé" exclues
+
+### AC3 : Calcul moyenne générale
+- [x] Coefficients matières appliqués (si configurés)
+- [x] Si pas de coef matière : moyenne arithmétique des moyennes matières
+- [x] Matières sans note exclues
+
+### AC4 : Statistiques classe
+- [x] Moyenne de classe : min / max / moyenne / médiane
+- [x] Absents et dispensés exclus
+
+### AC5 : Recalcul sur modification
+- [x] Note modifiée → moyennes impactées recalculées immédiatement
+- [x] Via Domain Events (eager calculation)
+
+### AC6 : Mode compétences
+- [ ] Établissement avec mode compétences → seules notes chiffrées prises en compte
+- [ ] Compétences ont leur propre agrégation
+
+---
+
+## Tâches / Sous-tâches
+
+### T1 : Service calcul moyennes (AC: #1-4)
+- [x] T1.1 : Service `AverageCalculator`
+- [x] T1.2 : Calcul moyenne matière avec coefficients
+- [x] T1.3 : Calcul moyenne générale
+- [x] T1.4 : Calcul statistiques classe
+- [x] T1.5 : Tests unitaires
+
+### T2 : Domain Events triggers (AC: #5)
+- [x] T2.1 : Listener `OnNotePubliee` → recalcul
+- [x] T2.2 : Listener `OnNoteModifiee` → recalcul
+- [x] T2.3 : Tests intégration
+
+### T3 : Cache Redis (AC: #1)
+- [x] T3.1 : Cache moyennes fréquemment consultées
+- [x] T3.2 : Invalidation sur modification
+- [x] T3.3 : TTL configurable
+- [x] T3.4 : Tests
+
+### T4 : Stockage moyennes (AC: #1-4)
+- [x] T4.1 : Table `student_averages` dénormalisée
+- [x] T4.2 : Table `class_statistics` dénormalisée
+- [x] T4.3 : Mise à jour via events
+- [x] T4.4 : Tests intégration
+
+### T5 : API Endpoints (AC: #1-4)
+- [x] T5.1 : `GET /api/students/{id}/averages` - Moyennes élève
+- [x] T5.2 : `GET /api/classes/{id}/statistics` - Stats classe
+- [x] T5.3 : `GET /api/evaluations/{id}/statistics` - Stats évaluation
+
+---
+
+## Notes Développeur
+
+### Dépendances
+
+- **Story 6.1** : Création d'évaluation
+- **Story 6.2** : Saisie notes
+
+### Schema Base de Données
+
+```sql
+-- Moyennes dénormalisées pour performance
+CREATE TABLE student_averages (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL,
+    student_id UUID NOT NULL REFERENCES users(id),
+    subject_id UUID NOT NULL REFERENCES subjects(id),
+    period_id UUID NOT NULL REFERENCES academic_periods(id),
+    average DECIMAL(4,2),
+    grade_count INT DEFAULT 0,
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    UNIQUE (student_id, subject_id, period_id)
+);
+
+CREATE TABLE student_general_averages (
+    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    tenant_id UUID NOT NULL,
+    student_id UUID NOT NULL REFERENCES users(id),
+    period_id UUID NOT NULL REFERENCES academic_periods(id),
+    average DECIMAL(4,2),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW(),
+    UNIQUE (student_id, period_id)
+);
+
+CREATE TABLE evaluation_statistics (
+    evaluation_id UUID PRIMARY KEY REFERENCES evaluations(id),
+    average DECIMAL(4,2),
+    min_grade DECIMAL(4,2),
+    max_grade DECIMAL(4,2),
+    median_grade DECIMAL(4,2),
+    graded_count INT DEFAULT 0,
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
+);
+
+CREATE INDEX idx_student_averages_student ON student_averages(student_id);
+CREATE INDEX idx_student_averages_subject ON student_averages(subject_id);
+```
+
+### Service Calcul Moyennes
+
+```php
+final class AverageCalculator
+{
+    public function calculateSubjectAverage(
+        UserId $studentId,
+        SubjectId $subjectId,
+        PeriodId $periodId
+    ): ?float {
+        $grades = $this->gradeRepository->findPublishedForStudentSubjectPeriod(
+            $studentId,
+            $subjectId,
+            $periodId
+        );
+
+        $validGrades = array_filter(
+            $grades,
+            fn(Grade $g) => $g->status === GradeStatus::GRADED
+        );
+
+        if (empty($validGrades)) {
+            return null;
+        }
+
+        $sumWeighted = 0;
+        $sumCoef = 0;
+
+        foreach ($validGrades as $grade) {
+            $normalizedValue = $grade->evaluation->gradeScale->convertTo20($grade->value);
+            $sumWeighted += $normalizedValue * $grade->evaluation->coefficient->value;
+            $sumCoef += $grade->evaluation->coefficient->value;
+        }
+
+        return round($sumWeighted / $sumCoef, 2);
+    }
+
+    public function calculateClassStatistics(EvaluationId $evaluationId): ClassStatistics
+    {
+        $grades = $this->gradeRepository->findGradedForEvaluation($evaluationId);
+        $values = array_map(fn(Grade $g) => $g->value, $grades);
+
+        sort($values);
+
+        return new ClassStatistics(
+            average: count($values) > 0 ? round(array_sum($values) / count($values), 2) : null,
+            min: min($values) ?? null,
+            max: max($values) ?? null,
+            median: $this->calculateMedian($values),
+            gradedCount: count($values)
+        );
+    }
+}
+```
+
+### Contraintes Techniques
+
+- Calculs via Domain Events (pas de batch nocturne)
+- Cache Redis pour moyennes fréquemment consultées
+- Précision : 2 décimales, arrondi au plus proche
+- Performance < 10ms (NFR-P9)
+
+### FRs/NFRs Couverts
+
+- **FR13** : Calcul automatique des moyennes
+- **NFR-P9** : Calculs < 10ms
+
+### Structure Fichiers
+
+```
+backend/src/Scolarite/
+├── Application/
+│   ├── Service/
+│   │   └── AverageCalculator.php
+│   └── Listener/
+│       ├── OnNotePubliee.php
+│       └── OnNoteModifiee.php
+└── Infrastructure/
+    ├── Cache/
+    │   └── RedisAverageCache.php
+    └── Api/
+        └── AverageController.php
+```
+
+### Références
+
+- [Source: _bmad-output/planning-artifacts/epics.md - Epic 6 Story 6.3]
+
+---
+
+## Dev Agent Record
+
+### Agent Model Used
+
+Claude Opus 4.6
+
+### Debug Log References
+
+### Completion Notes List
+
+- **T1** : Service `AverageCalculator` dans `Domain/Service/` — calcul pondéré des moyennes matières (normalisation /20), moyenne générale (arithmétique), statistiques de classe (min/max/moyenne/médiane). Value Object `ClassStatistics` et DTO `GradeEntry`. 19 tests unitaires.
+- **T2** : Event handlers Symfony Messenger pour `NotesPubliees`, `NoteSaisie|NoteModifiee`, `EvaluationModifiee`, `EvaluationSupprimee`. Logique commune extraite dans `RecalculerMoyennesService`. Requêtes batch via `findByEvaluations()` (N+1 résolu). 8 tests unitaires.
+- **T3** : Cache Redis via Symfony Cache pools (TTL 5 min configurable). Decorators `CachingStudentAverageRepository` et `CachingEvaluationStatisticsRepository` avec invalidation sur écriture/suppression. 7 tests unitaires.
+- **T4** : Migration Doctrine pour 3 tables dénormalisées (student_averages, student_general_averages, evaluation_statistics). Repositories Doctrine avec UPSERT + DELETE. InMemory implémentations.
+- **T5** : 3 endpoints API Platform avec contrôle d'accès (ownership/role), validation UUID, tenant isolation. LEFT JOIN pour stats partielles.
+- **Backfill** : Commande `app:recalculer-moyennes` pour remplir les projections depuis les données historiques (--tenant optionnel). 4 tests unitaires.
+- **Code Review fixes** : N+1 queries résolu, NoteSaisie handler ajouté, null averages cleanup, EvaluationModifiee/Supprimee handlers, FQCN corrigé, equals() standardisé, UUID validation 400 vs 500, LEFT JOIN.
+
+### File List
+
+- `backend/src/Scolarite/Domain/Service/AverageCalculator.php` (new)
+- `backend/src/Scolarite/Domain/Service/GradeEntry.php` (new)
+- `backend/src/Scolarite/Domain/Model/Evaluation/ClassStatistics.php` (new)
+- `backend/src/Scolarite/Domain/Repository/EvaluationStatisticsRepository.php` (new)
+- `backend/src/Scolarite/Domain/Repository/StudentAverageRepository.php` (new)
+- `backend/src/Scolarite/Domain/Repository/EvaluationRepository.php` (modified)
+- `backend/src/Scolarite/Domain/Repository/GradeRepository.php` (modified)
+- `backend/src/Scolarite/Application/Port/PeriodFinder.php` (new)
+- `backend/src/Scolarite/Application/Port/PeriodInfo.php` (new)
+- `backend/src/Scolarite/Application/Service/RecalculerMoyennesService.php` (new)
+- `backend/src/Scolarite/Infrastructure/Persistence/Doctrine/DoctrineEvaluationRepository.php` (modified)
+- `backend/src/Scolarite/Infrastructure/Persistence/Doctrine/DoctrineGradeRepository.php` (modified)
+- `backend/src/Scolarite/Infrastructure/Persistence/Doctrine/DoctrineEvaluationStatisticsRepository.php` (new)
+- `backend/src/Scolarite/Infrastructure/Persistence/Doctrine/DoctrineStudentAverageRepository.php` (new)
+- `backend/src/Scolarite/Infrastructure/Persistence/InMemory/InMemoryEvaluationRepository.php` (modified)
+- `backend/src/Scolarite/Infrastructure/Persistence/InMemory/InMemoryGradeRepository.php` (modified)
+- `backend/src/Scolarite/Infrastructure/Persistence/InMemory/InMemoryEvaluationStatisticsRepository.php` (new)
+- `backend/src/Scolarite/Infrastructure/Persistence/InMemory/InMemoryStudentAverageRepository.php` (new)
+- `backend/src/Scolarite/Infrastructure/Service/DoctrinePeriodFinder.php` (new)
+- `backend/src/Scolarite/Infrastructure/EventHandler/RecalculerMoyennesOnNotesPublieesHandler.php` (new)
+- `backend/src/Scolarite/Infrastructure/EventHandler/RecalculerMoyennesOnNoteModifieeHandler.php` (new)
+- `backend/src/Scolarite/Infrastructure/EventHandler/RecalculerMoyennesOnEvaluationModifieeHandler.php` (new)
+- `backend/src/Scolarite/Infrastructure/EventHandler/RecalculerMoyennesOnEvaluationSupprimeeHandler.php` (new)
+- `backend/src/Scolarite/Infrastructure/Cache/CachingStudentAverageRepository.php` (new)
+- `backend/src/Scolarite/Infrastructure/Cache/CachingEvaluationStatisticsRepository.php` (new)
+- `backend/src/Scolarite/Infrastructure/Console/RecalculerToutesMoyennesCommand.php` (new)
+- `backend/src/Scolarite/Infrastructure/Api/Resource/EvaluationStatisticsResource.php` (new)
+- `backend/src/Scolarite/Infrastructure/Api/Resource/StudentAveragesResource.php` (new)
+- `backend/src/Scolarite/Infrastructure/Api/Resource/ClassStatisticsResource.php` (new)
+- `backend/src/Scolarite/Infrastructure/Api/Provider/EvaluationStatisticsProvider.php` (new)
+- `backend/src/Scolarite/Infrastructure/Api/Provider/StudentAveragesProvider.php` (new)
+- `backend/src/Scolarite/Infrastructure/Api/Provider/ClassStatisticsProvider.php` (new)
+- `backend/migrations/Version20260329082334.php` (new)
+- `backend/config/packages/cache.yaml` (modified)
+- `backend/config/services.yaml` (modified)
+- `backend/tests/Unit/Scolarite/Domain/Service/AverageCalculatorTest.php` (new)
+- `backend/tests/Unit/Scolarite/Infrastructure/EventHandler/RecalculerMoyennesOnNotesPublieesHandlerTest.php` (new)
+- `backend/tests/Unit/Scolarite/Infrastructure/EventHandler/RecalculerMoyennesOnNoteModifieeHandlerTest.php` (new)
+- `backend/tests/Unit/Scolarite/Infrastructure/Cache/CachingEvaluationStatisticsRepositoryTest.php` (new)
+- `backend/tests/Unit/Scolarite/Infrastructure/Cache/CachingStudentAverageRepositoryTest.php` (new)
+- `backend/tests/Unit/Scolarite/Infrastructure/Console/RecalculerToutesMoyennesCommandTest.php` (new)
--- a/_bmad-output/implementation-artifacts/sprint-status.yaml
+++ b/_bmad-output/implementation-artifacts/sprint-status.yaml
@@ -0,0 +1,166 @@
+# generated: 2026-01-29
+# project: classeo
+# project_key: classeo
+# tracking_system: file-system
+# story_location: _bmad-output/implementation-artifacts
+
+# STATUS DEFINITIONS:
+# ==================
+# Epic Status:
+#   - backlog: Epic not yet started
+#   - in-progress: Epic actively being worked on
+#   - done: All stories in epic completed
+#
+# Epic Status Transitions:
+#   - backlog → in-progress: Automatically when first story is created (via create-story)
+#   - in-progress → done: Manually when all stories reach 'done' status
+#
+# Story Status:
+#   - backlog: Story only exists in epic file
+#   - ready-for-dev: Story file created in stories folder
+#   - in-progress: Developer actively working on implementation
+#   - review: Ready for code review (via Dev's code-review workflow)
+#   - done: Story completed
+#
+# Retrospective Status:
+#   - optional: Can be completed but not required
+#   - done: Retrospective has been completed
+#
+# WORKFLOW NOTES:
+# ===============
+# - Epic transitions to 'in-progress' automatically when first story is created
+# - Stories can be worked in parallel if team capacity allows
+# - SM typically creates next story after previous one is 'done' to incorporate learnings
+# - Dev moves story to 'review', then runs code-review (fresh context, different LLM recommended)
+
+generated: 2026-01-29
+project: classeo
+project_key: classeo
+tracking_system: file-system
+story_location: _bmad-output/implementation-artifacts
+
+development_status:
+  # Epic 1: Fondations, Auth & Observabilité (9 stories)
+  epic-1: done
+  1-1-setup-projet-infrastructure: done
+  1-2-foundation-multi-tenant: done
+  1-3-inscription-et-activation-compte: done
+  1-4-connexion-utilisateur: done
+  1-5-reinitialisation-mot-de-passe: done
+  1-6-gestion-sessions: done
+  1-7-audit-trail-actions-sensibles: done
+  1-8-observabilite-monitoring: done
+  1-9-dashboard-placeholder-avec-preview-score-serenite: done
+  epic-1-retrospective: optional
+
+  # Epic 2: Configuration Établissement (13 stories)
+  epic-2: done
+  2-1-creation-et-gestion-des-classes: done
+  2-2-creation-et-gestion-des-matieres: done
+  2-3-gestion-des-periodes-scolaires: done
+  2-4-configuration-mode-de-notation: done
+  2-5-creation-comptes-utilisateurs: done
+  2-5b-messaging-asynchrone-fiable: done
+  2-6-attribution-des-roles: done
+  2-7-liaison-parents-enfants: done
+  2-7b-conversion-mobile-first: done
+  2-8-affectation-enseignants-aux-classes-et-matieres: done
+  2-8b-pagination-et-recherche-sections-admin: done
+  2-8c-migration-utilisateurs-postgresql: done
+  2-9-designation-remplacants-temporaires: done
+  2-10-gestion-multi-etablissements-super-admin: done
+  2-11-configuration-calendrier-scolaire: done
+  2-12-consultation-liste-droit-a-limage: done
+  2-12b-optimistic-update-pages-admin: done
+  2-13-personnalisation-visuelle-etablissement: done
+  2-15-organisation-sections-dashboard-admin: done
+  epic-2-retrospective: done
+
+  # Epic 3: Import & Onboarding (5 stories)
+  epic-3: done
+  3-0-creation-manuelle-eleves: done
+  3-1-import-eleves-via-csv: done
+  3-2-import-enseignants-via-csv: done
+  3-3-generation-et-envoi-codes-invitation-parents: done
+  3-4-optimisation-pagination-et-cache-requetes: done
+  epic-3-retrospective: optional
+
+  # Epic 4: Emploi du Temps (5 stories)
+  epic-4: done
+  4-1-creation-et-modification-de-lemploi-du-temps: done
+  4-2-recurrences-hebdomadaires: done
+  4-3-consultation-edt-par-leleve: done
+  4-4-consultation-edt-par-le-parent: done
+  4-6-recherche-parent-liaison-eleve: done
+  epic-4-retrospective: optional
+
+  # Epic 5: Devoirs & Règles (8 stories)
+  epic-5: done
+  5-1-creation-de-devoirs: done
+  5-2-duplication-de-devoirs-multi-classes: done
+  5-2b-optimisation-chargement-page-devoirs: done
+  5-3-configuration-des-regles-de-devoirs: done
+  5-4-application-des-regles-mode-soft-warning: done
+  5-5-application-des-regles-mode-hard-blocage: done
+  5-6-contournement-des-regles-avec-notification: done
+  5-7-consultation-des-devoirs-par-leleve: done
+  5-8-consultation-des-devoirs-par-le-parent: done
+  5-9-description-enrichie-et-pieces-jointes-enseignant: done
+  5-10-rendu-de-devoir-par-leleve: done
+  epic-5-retrospective: optional
+
+  # Epic 6: Notes & Évaluations (8 stories)
+  epic-6: in-progress
+  6-1-creation-devaluation: done
+  6-2-saisie-notes-grille-inline: done
+  6-3-calcul-automatique-des-moyennes: in-progress
+  6-4-saisie-des-appreciations: in-progress
+  6-5-mode-competences: ready-for-dev
+  6-6-consultation-notes-par-leleve: ready-for-dev
+  6-7-consultation-notes-par-le-parent: ready-for-dev
+  6-8-statistiques-enseignant: ready-for-dev
+  epic-6-retrospective: optional
+
+  # Epic 7: Vie Scolaire (8 stories)
+  epic-7: in-progress
+  7-1-appel-en-un-ecran: ready-for-dev
+  7-2-signalement-absences: ready-for-dev
+  7-3-signalement-retards: ready-for-dev
+  7-4-justification-absence-par-le-parent: ready-for-dev
+  7-5-historique-absences-et-retards: ready-for-dev
+  7-6-gestion-dispenses-et-amenagements: ready-for-dev
+  7-7-saisie-sanctions-et-recompenses: ready-for-dev
+  7-8-consultation-vie-scolaire-par-le-parent: ready-for-dev
+  epic-7-retrospective: optional
+
+  # Epic 8: Dashboard Sérénité & Recherche (5 stories)
+  epic-8: in-progress
+  8-1-dashboard-parent-avec-score-serenite: ready-for-dev
+  8-2-configuration-et-opt-out-score-serenite: ready-for-dev
+  8-3-dashboard-enseignant: ready-for-dev
+  8-4-dashboard-direction: ready-for-dev
+  8-5-recherche-globale: ready-for-dev
+  epic-8-retrospective: optional
+
+  # Epic 9: Communication & Notifications (7 stories)
+  epic-9: in-progress
+  9-1-messagerie-enseignant-parents-eleves: ready-for-dev
+  9-2-messagerie-direction-etablissement: ready-for-dev
+  9-3-accuses-de-lecture-et-statistiques: ready-for-dev
+  9-4-notifications-push-pwa: ready-for-dev
+  9-5-notifications-email: ready-for-dev
+  9-6-preferences-de-notification: ready-for-dev
+  4-5-notifications-de-modification-edt: ready-for-dev  # Déplacée : dépend de 9.4 et 9.6
+  9-7-digest-hebdomadaire-serenite: ready-for-dev
+  epic-9-retrospective: optional
+
+  # Epic 10: Documents & Conformité (7 stories)
+  epic-10: in-progress
+  10-1-generation-bulletins-pdf: ready-for-dev
+  10-2-telechargement-bulletins: ready-for-dev
+  10-3-verrouillage-et-deverrouillage-des-notes: ready-for-dev
+  10-4-certificat-de-scolarite: ready-for-dev
+  10-5-gestion-cycle-de-vie-des-donnees: ready-for-dev
+  10-6-droits-rgpd-utilisateurs: ready-for-dev
+  10-7-passage-de-classe-et-cloture-annee: ready-for-dev
+  epic-10-retrospective: optional