Create app.py

app.py

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+mport gradio as gr
+import os
+import google.generativeai as genai
+from zoho_client_mcp import mcp # Import the MCP instance from our tools file
+
+# --- 1. Gemini Client Initialization ---
+# We configure the Gemini client directly in the app before launching the MCP.
+# This assumes os.environ['GOOGLE_API_KEY'] is set in config.py.
+def configure_gemini():
+    """Initializes the Gemini client using the API key from environment variables."""
+    try:
+        genai.configure(api_key=os.environ.get('GOOGLE_API_KEY'))
+        print("Gemini API configured successfully for conversational use.")
+    except Exception as e:
+        print(f"Error configuring Gemini API: {e}")
+
+# --- 2. Gradio Chat Interface Definition ---
+# This defines the web UI required for conversation and file uploads [3, 13, 16, 17].
+def chat_interface():
+    # Gradio's gr.ChatInterface is used to build a standard chat UI.
+    # The submission logic is handled automatically by FastMCP when mcp_server=True is used.
+    
+    # The file input is added directly to allow attachments (images/PDFs) [13, 18].
+    # Files uploaded here will be available to the 'process_document' tool [18].
+    file_component = gr.File(label="Upload Image or PDF Document", type="filepath")
+
+    # The gr.ChatInterface sets up the UI structure for the conversation.
+    iface = gr.ChatInterface(
+        # The function passed here is typically the conversational engine.
+        # When mcp_server=True, the MCP framework handles the routing.
+        fn=lambda msg, history: f"Thinking...", 
+        chatbot=gr.Chatbot(height=400),
+        textbox=gr.Textbox(placeholder="Ask me to create a contact, search records, or upload a document...", scale=7),
+        theme="soft",
+        title="Zoho CRM Agent (Gemini + FastMCP)",
+        submit_btn="Send Command",
+        clear_btn="Clear History",
+        # We attach the file component to the interface so users can upload [3, 16].
+        additional_inputs=[file_component] 
+    )
+    return iface
+
+# --- 3. Server Launch ---
+
+if __name__ == "__main__":
+    # Ensure Gemini is ready [11, 19].
+    configure_gemini()
+    
+    # Get the defined Gradio UI
+    demo = chat_interface()
+    
+    # Launch the Gradio UI, instructing it to also start the FastMCP server [4].
+    # Gradio automatically connects the UI to the running 'mcp' instance when mcp_server=True [3].
+    print("Starting Gradio Web UI and FastMCP Server...")
+    demo.launch(
+        server_name="0.0.0.0", 
+        server_port=7860,
+        mcp_server=True,  # Crucial: Starts the FastMCP server instance 'mcp' [4].
+        mcp=mcp            # Passes the specific FastMCP instance we defined [4].
+    )