Refactor clone_collection function arguments

app.py

@@ -9,7 +9,7 @@ def extract_slug(url):
 
 
 def clone_collection(
-    source_slug, dest_namespace, dest_title, token, private=False, exist_ok=False
+    source_slug, dest_title, token, dest_namespace=None, private=False, exist_ok=False
 ):
     api = HfApi(token=token)
     source_slug = source_slug.strip()
@@ -21,8 +21,9 @@ def clone_collection(
         raise gr.Error(
             f"Collection {source_slug} does not exist or you do not have access to it."
         )
-    description = f"Copy of {collection.title}"
-
+    description = f"Copied from {collection.title} using https://huggingface.co/spaces/librarian-bots/collection_cloner."
+    if dest_namespace == "username":
+        dest_namespace = None
     new_collection = api.create_collection(
         dest_title,
         namespace=dest_namespace,
@@ -35,7 +36,7 @@ def clone_collection(
         api.add_collection_item(
             new_collection.slug, item.item_id, item_type=item.item_type
         )
-    return f"[Collection]({collection.url}) has been cloned into [new_collection.slug]({new_collection.url})"
+    return f"[Collection]({collection.url}) has been cloned into [{new_collection.slug}]({new_collection.url})"
 
 
 title = (
@@ -66,13 +67,15 @@ You can then edit the collection to your liking!</p>"""
             placeholder="e.g. username/collection-slug",
         )
         gr.Markdown("## Destination Collection info")
-        dest_namespace = gr.Textbox(
-            label="Destination Namespace",
-            interactive=True,
-        )
+
         dest_title = gr.Textbox(
             label="Destination Title",
         )
+        dest_namespace = gr.Textbox(
+            value="username",
+            label="Destination Namespace (optional - defaults to your username))",
+            interactive=True,
+        )
         with gr.Row():
             private = gr.Checkbox(
                 False,
@@ -88,9 +91,9 @@ You can then edit the collection to your liking!</p>"""
         clone_collection,
         [
             source_slug,
-            dest_namespace,
             dest_title,
             token,
+            dest_namespace,
             private,
             overwrite,
         ],