Update app.py

def load_pdf(files, state):
if not files:
return "No file uploaded.", state, list(state["files"].keys())

try:
# Deduplicate by file path
unique_files = list({f['name']: f for f in files}.values())

for file in unique_files:
filename = os.path.basename(file['name']) # FIX

text = read_pdf(file['name'])
new_chunks = chunk_text(text)

if not new_chunks:
continue

state["files"][filename] = new_chunks
state["chunks"].extend(new_chunks)
state["pdf_count"] += 1

index, _ = build_vectorstore(state["chunks"])
state["index"] = index

return (
f"{state['pdf_count']} PDF(s) loaded. Total chunks: {len(state['chunks'])}",
state,
list(state["files"].keys()) # FIX: now contains real filenames
)

except Exception as e:
return (
f"Error processing PDF: {e}",
state,
list(state["files"].keys())
)

app.py

@@ -151,10 +151,13 @@ def load_pdf(files, state):
         return "No file uploaded.", state, list(state["files"].keys())
 
     try:
-        for file in files:
-            filename = os.path.basename(file)   # <-- FIX
+        # Deduplicate by file path
+        unique_files = list({f['name']: f for f in files}.values())
 
-            text = read_pdf(file)
+        for file in unique_files:
+            filename = os.path.basename(file['name'])  # FIX
+
+            text = read_pdf(file['name'])
             new_chunks = chunk_text(text)
 
             if not new_chunks:
@@ -170,7 +173,7 @@ def load_pdf(files, state):
         return (
             f"{state['pdf_count']} PDF(s) loaded. Total chunks: {len(state['chunks'])}",
             state,
-            list(state["files"].keys())  # <-- now contains real filenames
+            list(state["files"].keys())  # FIX: now contains real filenames
         )
 
     except Exception as e: