claude fix: improve product scraping and debugging features

backend/app/db/crud.py

@@ -38,6 +38,58 @@ def create_product(db: Session, data: schemas.ProductCreate) -> models.Product:
     return product
 
 
+def create_product_with_snapshot(
+    db: Session, data: schemas.ProductCreateWithSnapshot
+) -> models.Product:
+    """Crée un produit avec un snapshot initial (données issues de la prévisualisation)."""
+    data_dict = data.model_dump()
+
+    # Extraire les champs du snapshot
+    snapshot_fields = [
+        "prix_actuel",
+        "prix_conseille",
+        "prix_min_30j",
+        "etat_stock",
+        "en_stock",
+        "note",
+        "nombre_avis",
+        "prime",
+        "choix_amazon",
+        "offre_limitee",
+        "exclusivite_amazon",
+    ]
+    snapshot_data = {k: data_dict.pop(k) for k in snapshot_fields if k in data_dict}
+
+    # Convertir les HttpUrl en strings pour SQLite
+    if data_dict.get("url"):
+        data_dict["url"] = str(data_dict["url"])
+    if data_dict.get("url_image"):
+        data_dict["url_image"] = str(data_dict["url_image"])
+
+    # Créer le produit
+    product = models.Product(**data_dict)
+    db.add(product)
+    try:
+        db.commit()
+    except IntegrityError:
+        db.rollback()
+        raise
+    db.refresh(product)
+
+    # Créer le snapshot initial si on a des données
+    has_snapshot_data = any(v is not None for v in snapshot_data.values())
+    if has_snapshot_data:
+        snapshot = models.ProductSnapshot(
+            produit_id=product.id,
+            statut_scrap="preview",
+            **snapshot_data,
+        )
+        db.add(snapshot)
+        db.commit()
+
+    return product
+
+
 def update_product(db: Session, product: models.Product, changes: schemas.ProductUpdate) -> models.Product:
     for field, value in changes.dict(exclude_unset=True).items():
         setattr(product, field, value)

backend/app/db/schemas.py

@@ -87,3 +87,20 @@ class ProductWithSnapshot(ProductBase):
 
     class Config:
         orm_mode = True
+
+
+class ProductCreateWithSnapshot(ProductBase):
+    """Création d'un produit avec données de snapshot initiales (depuis preview)."""
+
+    # Données du snapshot initial
+    prix_actuel: Optional[float] = None
+    prix_conseille: Optional[float] = None
+    prix_min_30j: Optional[float] = None
+    etat_stock: Optional[str] = None
+    en_stock: Optional[bool] = None
+    note: Optional[float] = None
+    nombre_avis: Optional[int] = None
+    prime: Optional[bool] = None
+    choix_amazon: Optional[bool] = None
+    offre_limitee: Optional[bool] = None
+    exclusivite_amazon: Optional[bool] = None