Declare sources history as list and append dictionary for each retrieval query with necessary information

app.py

@@ -24,7 +24,7 @@ from tools.langfuse_client import get_langfuse_handler
 
 from config import app_settings
 
-document_metadata_to_display_in_ui = {}
+document_metadata_to_display_in_ui = []
 def get_metadata():
     global document_metadata_to_display_in_ui
     return document_metadata_to_display_in_ui  # safe to read and return
@@ -87,11 +87,13 @@ def retrieve(query: str):
     )
 
     global document_metadata_to_display_in_ui
-    document_metadata_to_display_in_ui = {
+    document_metadata_to_display_in_ui.append({
+        "query": query,
         "filename": [get_document_filename(doc) for doc in retrieved_docs],
         "author": [doc.metadata["Author"] for doc in retrieved_docs],
-        "creation_date": [doc.metadata["CreationDate"] for doc in retrieved_docs]
-    }
+        "creation_date": [doc.metadata["CreationDate"] for doc in retrieved_docs],
+        "source_text_chunk": [doc.page_content for doc in retrieved_docs]
+    })
 
     logger.info("Retrieved document metadata to display in UI", content=document_metadata_to_display_in_ui)