clean: code cleaning

services/__init__.py

@@ -9,22 +9,40 @@ from .assessment_services import (
     GradingStrategyFactory
 )
 
-# Import de l'ancien service pour rétrocompatibilité
-import importlib.util
-import os
+# Legacy service - TODO: Migrer vers architecture moderne
+# Import via path absolu pour éviter circularité
+import sys
+from pathlib import Path
+sys.path.insert(0, str(Path(__file__).parent.parent))
 
-# Charger AssessmentService depuis services.py
 try:
-    services_file_path = os.path.join(os.path.dirname(__file__), '..', 'services.py')
-    spec = importlib.util.spec_from_file_location("legacy_services", services_file_path)
-    legacy_services = importlib.util.module_from_spec(spec)
-    spec.loader.exec_module(legacy_services)
-    AssessmentService = legacy_services.AssessmentService
-except Exception:
-    # Fallback en cas d'erreur
+    # Import direct pour éviter la circularité
+    from importlib import import_module
+    spec_path = Path(__file__).parent.parent / 'services.py'
+    if spec_path.exists():
+        # Import dynamique du module legacy
+        import importlib.util
+        spec = importlib.util.spec_from_file_location("legacy_services", spec_path)
+        legacy_module = importlib.util.module_from_spec(spec)
+        spec.loader.exec_module(legacy_module)
+        AssessmentService = legacy_module.AssessmentService
+    else:
+        raise ImportError("Legacy services.py not found")
+except ImportError:
+    # Fallback minimal
     class AssessmentService:
-        """Fallback pour AssessmentService"""
-        pass
+        """Fallback pour AssessmentService - migration required"""
+        @staticmethod
+        def process_assessment_with_exercises(*args, **kwargs):
+            raise NotImplementedError("Legacy service not available")
+        
+        @staticmethod
+        def create_assessment(*args, **kwargs):
+            raise NotImplementedError("Legacy service not available")
+        
+        @staticmethod
+        def update_assessment_basic_info(*args, **kwargs):
+            raise NotImplementedError("Legacy service not available")
 
 __all__ = [
     'AssessmentService',  # Service legacy