Added core agent functionality.

app.py

@@ -18,30 +18,39 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 # ----- THIS IS WERE YOU CAN BUILD WHAT YOU WANT ------
 class BasicAgent:
     def __init__(self):
-        print("BasicAgent initialized.")
-
-        model_api_key = os.getenv("OPENAI_API_KEY")
+        print("Starting the initialization of model.")
         
+        model_api_key = os.getenv("OPENAI_API_KEY")
         model = OpenAIServerModel(
             model_id="gpt-4o-mini-2024-07-18",
             api_key = model_api_key 
         )
+        print("Core model has been initialized.")
         
         self.tools = [
             DuckDuckGoSearchTool()
         ]
+        print("Agent tools have been initialized.")
 
         self.agent = CodeAgent(
             model = model,
             tools = self.tools,
             add_base_tools=True  # Add basic tools like math
         )
+        print("Core agent has been initialized.")
 
     def __call__(self, question: str) -> str:
         print(f"Agent received question (first 50 chars): {question[:50]}...")
-        fixed_answer = "This is a default answer."
-        print(f"Agent returning fixed answer: {fixed_answer}")
-        return fixed_answer
+        try:
+            # send the question content to the agent
+            answer = self.agent.run(question)
+            print(f"Agent returning fixed answer: {answer}")
+        
+            # return the answer
+            return answer
+        except Exception as e:
+            print(f"Error running agent {str(e)}")
+        
 
 def run_and_submit_all( profile: gr.OAuthProfile | None):
     """