Update app.py

app.py

@@ -3,6 +3,10 @@ import gradio as gr
 import requests
 import inspect
 import pandas as pd
+from smolagents import LiteLLMModel
+from smolagents import CodeAgent, ToolCallingAgent, GoogleSearchTool, HfApiModel, VisitWebpageTool, DuckDuckGoSearchTool, tool, PythonInterpreterTool, WikipediaSearchTool
+import requests
+from youtube_transcript_api import YouTubeTranscriptApi
 
 # (Keep Constants as is)
 # --- Constants ---
@@ -10,14 +14,73 @@ DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"
 
 # --- Basic Agent Definition ---
 # ----- THIS IS WERE YOU CAN BUILD WHAT YOU WANT ------
+@tool
+def reverse_sentence_tool(reverse_sentence: str) -> str:
+    """
+    This tool receives a sentence where both the word order and the characters in each word are reversed.
+    It returns the sentence with words and order corrected.
+    Args:
+        reverse_sentence: A sentence with reversed words and reversed word order.
+    Returns:
+        A sentence in natural reading order.
+    """
+    inverted_words = reverse_sentence.split(" ")[::-1]
+    correct_words = [word[::-1] for word in inverted_words]
+
+    return " ".join(correct_words)
+
+@tool
+def get_youtube_transcript(video_url: str) -> str:
+    """
+    Fetches the transcript from a YouTube video if available.
+    Args:
+        video_url: Full URL to the YouTube video.
+    Returns:
+        Transcript text.
+    """
+    video_id = video_url.split("v=")[-1]
+    transcript = YouTubeTranscriptApi.get_transcript(video_id)
+    full_text = " ".join([entry['text'] for entry in transcript])
+    return full_text
+
+@tool
+def check_answer(answer: str) -> str:
+    """
+    Reviews the answer to check that it meets the requirements specified by the user and modifies it if necessary.
+    Args:
+        answer (str): The answer fo the Agent.
+    Returns:
+        str: The final answer.
+    """
+
+    if answer[-1] == '.':
+        return answer[:-1]
+    
+    if "St." in answer:
+        return answer.replace("St.", "Saint")
+
+    return answer
+    
 class BasicAgent:
     def __init__(self):
+        self.api_key = os.getenv("GOOGLE_API_KEY")
+        self.model = LiteLLMModel(model_id="gemini/gemini-2.0-flash", api_key=self.api_key)
+
+        self.agent = CodeAgent(
+                tools=[
+                    DuckDuckGoSearchTool(),
+                    PythonInterpreterTool(),
+                    VisitWebpageTool(),
+                    reverse_sentence_tool,
+                    check_answer
+                ],
+                model=self.model
+            )
         print("BasicAgent 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
+        answer = self.agent.run(question)
+        return answer
 
 def run_and_submit_all( profile: gr.OAuthProfile | None):
     """