# app.py

import os
import gradio as gr
import requests
import pandas as pd

from smolagents import CodeAgent, tool
from litellm import LiteLLMModel

# --- Constants ---
DEFAULT_API_URL = "https://agents-course-unit4-scoring.hf.space"

# --- Tool: simple DuckDuckGo search via HTML scraping ---
@tool
def simple_search(query: str) -> str:
    """
    Perform a basic DuckDuckGo search.

    Args:
        query (str): Search query.

    Returns:
        str: Top 3 titles and URLs from search.
    """
    try:
        resp = requests.get(
            "https://html.duckduckgo.com/html/",
            params={"q": query},
            timeout=10
        )
        resp.raise_for_status()
        from bs4 import BeautifulSoup
        soup = BeautifulSoup(resp.text, "html.parser")
        items = soup.select("a.result__a")[:3]
        results = [f"{a.get_text()}\n{a['href']}" for a in items]
        return "\n\n".join(results) if results else "No results found."
    except Exception as e:
        return f"Search error: {e}"

# --- Enhanced Agent using a public model ---
class BasicAgent:
    def __init__(self):
        print("BasicAgent initialized with Falcon 7B Instruct model.")
        self.model = LiteLLMModel(
            model_id="tiiuae/falcon-7b-instruct",
            max_tokens=512,
            temperature=0.1
        )
        self.agent = CodeAgent(
            model=self.model,
            tools=[simple_search]
        )

    def __call__(self, question: str) -> str:
        print(f"Received question: {question[:50]}...")
        try:
            return self.agent.run(question)
        except Exception as e:
            return f"Agent error: {e}"

def run_and_submit_all(profile: gr.OAuthProfile | None):
    space_id = os.getenv("SPACE_ID")
    if not profile:
        return "Please log in to Hugging Face to submit.", None
    username = profile.username

    questions_url = f"{DEFAULT_API_URL}/questions"
    submit_url = f"{DEFAULT_API_URL}/submit"

    try:
        agent = BasicAgent()
    except Exception as e:
        return f"Agent init failed: {e}", None

    agent_code = f"https://huggingface.co/spaces/{space_id}/tree/main"

    try:
        resp = requests.get(questions_url, timeout=15)
        resp.raise_for_status()
        qs = resp.json()
    except Exception as e:
        return f"Failed to fetch questions: {e}", None

    logs, payload = [], []
    for item in qs:
        tid = item.get("task_id")
        q = item.get("question")
        if not tid or q is None:
            continue
        ans = agent(q)
        payload.append({"task_id": tid, "submitted_answer": ans})
        logs.append({"Task ID": tid, "Question": q, "Submitted Answer": ans})

    if not payload:
        return "No answers generated.", pd.DataFrame(logs)

    submit = {"username": username, "agent_code": agent_code, "answers": payload}
    try:
        r2 = requests.post(submit_url, json=submit, timeout=60)
        r2.raise_for_status()
        data = r2.json()
        status = (
            f"✅ Submission Successful!\n"
            f"Score: {data.get('score','N/A')}% "
            f"({data.get('correct_count','?')}/{data.get('total_attempted','?')})\n"
            f"{data.get('message','')}"
        )
        return status, pd.DataFrame(logs)
    except Exception as e:
        return f"Submit failed: {e}", pd.DataFrame(logs)

# --- Gradio UI ---
with gr.Blocks() as demo:
    gr.Markdown("# GAIA Agent Evaluation Runner")
    gr.LoginButton()
    run_btn = gr.Button("Run Evaluation & Submit All Answers")
    status = gr.Textbox(label="Status / Submission Result", lines=5, interactive=False)
    results = gr.DataFrame(label="Questions & Submitted Answers", wrap=True)

    run_btn.click(run_and_submit_all, outputs=[status, results])

if __name__ == "__main__":
    print("Launching Gradio app...")
    demo.launch(debug=True, share=False)