✨ Add pin share delete

app/routes/pins.py

@@ -263,5 +263,38 @@ async def get_pin_shares(id: str, current_user: User = Depends(get_current_user)
         
         return {"shares": shares_list}
         
+    except bson.errors.InvalidId:
+        objectid_misformatted()
+
+@pins_router.delete(
+    path="/{id}/share/{friend_id}",
+    responses={401: {"model": HTTPError}, 404: {"model": HTTPError}, 422: {"model": HTTPError}, 403: {"model": HTTPError}}
+)
+async def delete_pin_share(id: str, friend_id: str, current_user: User = Depends(get_current_user)):
+    try:
+        # Vérifier si le pin existe et appartient à l'utilisateur courant
+        pin = pins_collection.find_one({"_id": ObjectId(id)})
+        check_pin_is_null(pin)
+        
+        if pin["user_id"] != current_user.uid:
+            # Vérifier si l'utilisateur a le pin partagé avec lui
+            permission = pin_permissions_collection.find_one({
+                "pin_id": ObjectId(id),
+                "user_id": current_user.uid
+            })
+            if not permission:
+                raise HTTPException(status_code=403, detail="You don't have permission to delete this pin share")
+        
+        # Supprimer la permission de partage pour l'utilisateur
+        result = pin_permissions_collection.delete_one({
+            "pin_id": ObjectId(id),
+            "user_id": ObjectId(friend_id)
+        })
+        
+        if result.deleted_count == 0:
+            raise HTTPException(status_code=404, detail="Pin share not found or you don't have permission to delete it")
+        
+        return {"message": "Pin share deleted successfully"}
+        
     except bson.errors.InvalidId:
         objectid_misformatted()