Update app.py

app.py

@@ -60,13 +60,31 @@ def process_upload(files):
     
     # Build the index and chat engine using Qdrant as the vector store.
     global client, vector_store, storage_context, index, query_engine, memory, chat_engine
-    client = qdrant_client.QdrantClient(location=":memory:")
+    # client = qdrant_client.QdrantClient(location=":memory:")
     
+    # vector_store = QdrantVectorStore(
+    #     collection_name="paper",
+    #     client=client,
+    #     enable_hybrid=True,
+    #     batch_size=20,
+    # )
+    collection_name = ["paper"]
+    client = qdrant_client.QdrantClient(
+        path="./qdrant_db",  
+        prefer_grpc=True
+    )
+    existing_collections = {col.name for col in client.get_collections().collections}
+    if collection_name not in existing_collections:
+        client.create_collection(
+            collection_name=collection_name,
+            vectors_config=models.VectorParams(
+                size=1536,  
+                distance=models.Distance.COSINE
+            )
+        )
     vector_store = QdrantVectorStore(
-        collection_name="paper",
         client=client,
-        enable_hybrid=True,
-        batch_size=20,
+        collection_name=collection_name,
     )
     
     storage_context = StorageContext.from_defaults(vector_store=vector_store)