meerdere updates

backend/permissions.py

@@ -0,0 +1,34 @@
+from database import fetch_one
+
+
+def get_room_role(room_id, user_id):
+    member = fetch_one(
+        """
+        SELECT role
+        FROM room_members
+        WHERE room_id = ?
+        AND user_id = ?
+        """,
+        (
+            room_id,
+            user_id
+        )
+    )
+
+    if member is None:
+        return None
+
+    return member["role"]
+
+
+def has_role(room_id, user_id, allowed_roles):
+
+    role = get_room_role(
+        room_id,
+        user_id
+    )
+
+    if role is None:
+        return False
+
+    return role in allowed_roles