Upload app.py

app.py

@@ -101,15 +101,14 @@ User's Message:
     chat_history.append(("Gemini", response))
     save_record(chat_history)
 
-    # Format display with highlighting
     chat_display = "\n".join(
-        f"<b>{sender}:</b> {highlight_diseases(msg) if sender != 'You' else msg}" 
+        f"<b>{sender}:</b> {highlight_diseases(msg) if sender != 'You' else msg}"
         for sender, msg in chat_history
     )
     return chat_display, chat_history
 
 def export_json(history):
-    return json.dumps(history, indent=2)
+    return gr.File.update(value=json.dumps(history, indent=2).encode("utf-8"), visible=True)
 
 with gr.Blocks(css="mark { background-color: #ffeb3b; font-weight: bold; }") as demo:
     gr.Markdown("# 🩺 Gemini Healthcare Assistant")
@@ -127,6 +126,8 @@ with gr.Blocks(css="mark { background-color: #ffeb3b; font-weight: bold; }") as
     btn = gr.Button("💬 Send")
     btn.click(fn=respond, inputs=[name, age, gender, topic, chat, state], outputs=[output, state])
 
-    gr.File(label="⬇️ Export Chat as JSON", value=export_json, interactive=True, file_types=[".json"])
+    export_btn = gr.Button("⬇️ Export Chat")
+    export_file = gr.File(visible=False)
+    export_btn.click(fn=export_json, inputs=[state], outputs=[export_file])
 
 demo.launch()