from smolagents import CodeAgent, DuckDuckGoSearchTool, HfApiModel, load_tool, tool
import datetime
import requests
import pytz
import yaml
from tools.final_answer import FinalAnswerTool
from tools.visit_webpage import VisitWebpageTool
from tools.web_search import DuckDuckGoSearchTool
import os

from dotenv import load_dotenv


load_dotenv(override=True)

from Gradio_UI import GradioUI


@tool
def get_crypto_price(coin_name: str) -> str:
    """Get latest crypto price in usd for a given coin name

    Args:
    coin_name: The unique name of the coin in lowercase. e.g. bitcoin.
    """
    api_key = os.getenv("COINGECKO_API_KEY")
    headers = {"accept": "application/json", "x-cg-demo-api-key": api_key}
    url = f"https://api.coingecko.com/api/v3/simple/price?ids={coin_name}&vs_currencies=usd"

    response = requests.get(url, headers=headers)
    data = response.json()
    if coin_name in data and "usd" in data[coin_name]:
        price = data[coin_name]["usd"]
        return price
    else:
        return None


@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').
    """
    try:
        # Create timezone object
        tz = pytz.timezone(timezone)
        # Get current time in that 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)}"


search_tool = DuckDuckGoSearchTool(max_results=10)
visit_webpage_tool = VisitWebpageTool()

final_answer = FinalAnswerTool()

# If the agent does not answer, the model is overloaded, please use another model or the following Hugging Face Endpoint that also contains qwen2.5 coder:
# model_id='https://pflgm2locj2t89co.us-east-1.aws.endpoints.huggingface.cloud'

model = HfApiModel(
    max_tokens=2096,
    temperature=0.5,
    model_id="Qwen/Qwen2.5-Coder-32B-Instruct",  # it is possible that this model may be overloaded
    custom_role_conversions=None,
)


# Import tool from Hub
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)

welcome_message = """
## Welcome! 
I can help you with:
- Getting cryptocurrency prices (e.g. "What's the current price of bitcoin?")
- Searching the web for information
- Generating images from text descriptions
- General knowledge questions
- And more!

"""

agent = CodeAgent(
    model=model,
    tools=[
        final_answer,
        visit_webpage_tool,
        search_tool,
        get_current_time_in_timezone,
        get_crypto_price,
        image_generation_tool,
    ],
    max_steps=6,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=welcome_message,
    prompt_templates=prompt_templates,
)

GradioUI(agent, description=welcome_message).launch()