refac/pref: chat import optimization

Co-Authored-By: G30 <50341825+silentoplayz@users.noreply.github.com>

backend/open_webui/routers/chats.py

@@ -7,9 +7,11 @@ from open_webui.socket.main import get_event_emitter
 from open_webui.models.chats import (
     ChatForm,
     ChatImportForm,
+    ChatBulkImportForm,
     ChatResponse,
     Chats,
     ChatTitleIdResponse,
+    ChatsImportForm,
 )
 from open_webui.models.tags import TagModel, Tags
 from open_webui.models.folders import Folders
@@ -142,26 +144,15 @@ async def create_new_chat(form_data: ChatForm, user=Depends(get_verified_user)):
 
 
 ############################
-# ImportChat
+# ImportChats
 ############################
 
 
 @router.post("/import", response_model=Optional[ChatResponse])
-async def import_chat(form_data: ChatImportForm, user=Depends(get_verified_user)):
+async def import_chats(form_data: ChatsImportForm, user=Depends(get_verified_user)):
     try:
-        chat = Chats.import_chat(user.id, form_data)
-        if chat:
-            tags = chat.meta.get("tags", [])
-            for tag_id in tags:
-                tag_id = tag_id.replace(" ", "_").lower()
-                tag_name = " ".join([word.capitalize() for word in tag_id.split("_")])
-                if (
-                    tag_id != "none"
-                    and Tags.get_tag_by_name_and_user_id(tag_name, user.id) is None
-                ):
-                    Tags.insert_new_tag(tag_name, user.id)
-
-        return ChatResponse(**chat.model_dump())
+        chats = Chats.import_chats(user.id, form_data.chats)
+        return [ChatResponse(**chat.model_dump()) for chat in chats]
     except Exception as e:
         log.exception(e)
         raise HTTPException(