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app.py

@@ -13,13 +13,14 @@ load_dotenv()
 # Initialize client with API key from environment
 initial_api_key = os.getenv("OPENAI_API_KEY")
 
-
-
-
-
 # Global variables to store API key and model
 current_api_key = initial_api_key
 current_model = "gpt-3.5-turbo"
+client = None
+
+# Initialize client if API key is available
+if initial_api_key:
+    client = AsyncOpenAI(api_key=initial_api_key)
 
 async def get_openai_response(prompt, model="gpt-3.5-turbo"):
     """Get response from OpenAI API"""
@@ -50,8 +51,9 @@ def chat_response(message, history, api_key, model):
 
     # If client is still None, it means no valid API key has been set
     if client is None:
-        yield "Please provide your OpenAI API key to start the conversation."
-        return
+        history.append({"role": "user", "content": message})
+        history.append({"role": "assistant", "content": "Please provide your OpenAI API key to start the conversation."})
+        return history, ""
     
     # Update model if different
     if model != current_model:
@@ -59,26 +61,27 @@ def chat_response(message, history, api_key, model):
     
     # Check if API key is available
     if not current_api_key:
-        bot_message = "⚠️ Please enter your OpenAI API Key first."
-        history.append([message, bot_message])
+        history.append({"role": "user", "content": message})
+        history.append({"role": "assistant", "content": "⚠️ Please enter your OpenAI API Key first."})
         return history, ""
     
     if not message.strip():
-        bot_message = "⚠️ Please enter a question."
-        history.append([message, bot_message])
+        history.append({"role": "user", "content": message})
+        history.append({"role": "assistant", "content": "⚠️ Please enter a question."})
         return history, ""
     
     # Add user message to history first
-    history.append([message, "🤔 Thinking..."])
+    history.append({"role": "user", "content": message})
+    history.append({"role": "assistant", "content": "🤔 Thinking..."})
     
     # Get response from OpenAI
     try:
         response = asyncio.run(get_openai_response(message, current_model))
         # Update the last message with the actual response
-        history[-1][1] = response
+        history[-1]["content"] = response
         return history, ""
     except Exception as e:
-        history[-1][1] = f"❌ Error: {str(e)}"
+        history[-1]["content"] = f"❌ Error: {str(e)}"
         return history, ""
 
 def clear_chat():
@@ -474,15 +477,15 @@ with gr.Blocks(css=custom_css, title="🤖 OpenAI Q&A Chatbot", theme=gr.themes.
                 
         with gr.Column(scale=2, elem_classes="fade-in-up"):
             with gr.Group(elem_classes="chat-container"):
-                # Chat interface
+                # Chat interface - Fixed for newer Gradio versions
                 chatbot = gr.Chatbot(
                     label="💬 **Conversation**",
                     height=450,
                     show_copy_button=True,
-                    bubble_full_width=False,
                     show_label=True,
                     container=True,
-                    scale=1
+                    scale=1,
+                    type="messages"  # Fixed: Use messages format instead of tuples
                 )
                 
                 with gr.Row():
@@ -518,7 +521,7 @@ with gr.Blocks(css=custom_css, title="🤖 OpenAI Q&A Chatbot", theme=gr.themes.
         2. **Select your preferred model** (GPT-3.5 recommended for speed)
         3. **Start chatting** - type your question and hit send!
         
-        *Built By ❤️ Mahfujul Karim*
+        *Built with ❤️ by Mahfujul Karim*
         """)
     
     # Event handlers with enhanced functionality
@@ -568,16 +571,16 @@ with gr.Blocks(css=custom_css, title="🤖 OpenAI Q&A Chatbot", theme=gr.themes.
     # Auto-refresh status every 30 seconds
     demo.load(refresh_status, outputs=[status_display])
 
-# Launch with enhanced configuration
+# Launch with Hugging Face Spaces compatible configuration
 if __name__ == "__main__":
     demo.launch(
         share=False,
-        server_name="0.0.0.0",
-        server_port=7861,
         show_error=True,
         show_api=False,
         quiet=False,
-        inbrowser=True,
-        favicon_path=None,
+        # Remove server_name, server_port, and inbrowser for Hugging Face Spaces
+        # inbrowser=True,
+        # server_name="0.0.0.0",
+        # server_port=7861,
         ssl_verify=False
     )