from smolagents import CodeAgent, DuckDuckGoSearchTool, HfApiModel, load_tool, tool
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool
from Gradio_UI import GradioUI


@tool
def fetch_webpage(url: str) -> str:
    """Fetches the content of a webpage and returns clean text (first 3000 chars).
    Useful to read articles, company pages, or any URL after a web search.
    Args:
        url: The full URL to fetch (e.g., 'https://www.anthropic.com/news').
    """
    try:
        headers = {
            "User-Agent": "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36"
        }
        response = requests.get(url, headers=headers, timeout=15)
        response.raise_for_status()
        # Extraction texte basique sans BeautifulSoup pour éviter dépendance
        import re
        text = re.sub(r'<script.*?</script>', '', response.text, flags=re.DOTALL)
        text = re.sub(r'<style.*?</style>', '', text, flags=re.DOTALL)
        text = re.sub(r'<[^>]+>', ' ', text)
        text = re.sub(r'\s+', ' ', text).strip()
        return text[:3000]
    except Exception as e:
        return f"Error fetching {url}: {str(e)}"


@tool
def convert_currency(amount: float, from_currency: str, to_currency: str) -> str:
    """Converts an amount from one currency to another using current exchange rates.
    Args:
        amount: The amount of money to convert (e.g., 1500.0).
        from_currency: Source currency 3-letter code (e.g., 'USD', 'EUR', 'GBP').
        to_currency: Target currency 3-letter code (e.g., 'USD', 'EUR', 'GBP').
    """
    try:
        url = f"https://api.exchangerate-api.com/v4/latest/{from_currency.upper()}"
        response = requests.get(url, timeout=10)
        data = response.json()
        rate = data["rates"][to_currency.upper()]
        converted = amount * rate
        return f"{amount} {from_currency.upper()} = {converted:.2f} {to_currency.upper()} (rate: {rate:.4f})"
    except Exception as e:
        return f"Error converting currency: {str(e)}"


@tool
def get_current_time_in_timezone(timezone: str) -> str:
    """A tool that fetches the current local time in a specified timezone.
    Args:
        timezone: A string representing a valid timezone (e.g., 'America/New_York', 'Europe/Paris').
    """
    try:
        tz = pytz.timezone(timezone)
        local_time = datetime.datetime.now(tz).strftime("%Y-%m-%d %H:%M:%S")
        return f"The current local time in {timezone} is: {local_time}"
    except Exception as e:
        return f"Error fetching time for timezone '{timezone}': {str(e)}"


final_answer = FinalAnswerTool()

model = HfApiModel(
    max_tokens=2096,
    temperature=0.5,
    model_id='Qwen/Qwen2.5-Coder-32B-Instruct',
    custom_role_conversions=None,
)

image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True)

with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)

agent = CodeAgent(
    model=model,
    tools=[
        final_answer,
        DuckDuckGoSearchTool(),
        fetch_webpage,
        image_generation_tool,
        get_current_time_in_timezone,
        convert_currency,
    ],
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates
)

GradioUI(agent).launch()