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

from Gradio_UI import GradioUI

# Below is an example of a tool that does nothing. Amaze us with your creativity !
@tool
def my_custom_tool(arg1:str, arg2:int)-> str: #it's import to specify the return type
    #Keep this format for the description / args / args description but feel free to modify the tool
    """A tool that does nothing yet 
    Args:
        arg1: the first argument
        arg2: the second argument
    """
    return "What magic will you build ?"

@tool
def get_temperature(location: str, temp_scale: str = "celsius") -> tuple[float, str, str]:
    """A tool that fetches the current temperature and provides a qualitative description.
    Args:
        location: The name of the city/location
        temp_scale: Temperature scale to use ('celsius' or 'fahrenheit')
    Returns:
        tuple: A tuple containing:
            - temperature (float): The numerical temperature value
            - unit (str): The temperature unit ('C' or 'F')
            - description (str): How the temperature feels (freezing/cold/mild/warm/hot)
    Usage:
        Always provide temperature value and qualitative description.
        temp, unit, feel = get_temperature("Warsaw", "celsius")
        Example output: (-2.4, 'C', 'freezing')
        Formatted: "The current temperature in Warsaw is -2.4°C - it feels freezing"
    """
    def get_description(temp_c: float) -> str:
        """Get qualitative description based on Celsius temperature"""
        if temp_c <= 0: return "freezing"
        if temp_c <= 10: return "cold"
        if temp_c <= 20: return "mild"
        if temp_c <= 30: return "warm"
        return "hot"

    def to_celsius(f: float) -> float:
        """Convert Fahrenheit to Celsius"""
        return (f - 32) * 5/9

    def to_fahrenheit(c: float) -> float:
        """Convert Celsius to Fahrenheit"""
        return (c * 9/5) + 32
    try:
        API_KEY = os.environ.get('WEATHER_API_KEY')
        if not API_KEY:
            return "Error: Weather API key not configured"
            
        # Temperature scale definitions
        temp_scale = temp_scale.lower()
        if temp_scale not in ["celsius", "fahrenheit"]:
            raise ValueError("temp_scale must be either 'celsius' or 'fahrenheit'")
            
        units = 'metric' if temp_scale == "celsius" else 'imperial'
        url = f"http://api.openweathermap.org/data/2.5/weather?q={location}&appid={API_KEY}&units={units}"
        
        response = requests.get(url, timeout=10)
        data = response.json()
        
        if response.status_code == 200:
            temp = data["main"]["temp"]
            unit = 'C' if temp_scale == "celsius" else 'F'
            
            # Convert to Celsius for description if needed
            temp_c = temp if temp_scale == "celsius" else to_celsius(temp)
            description = get_description(temp_c)
                    
            return (temp, unit, description)
        else:
            error_msg = data.get('message', 'Unknown error')
            raise Exception(f"API Error: {error_msg} (Status code: {response.status_code})")
          
    except requests.Timeout:
        raise Exception(f"Request timed out while fetching temperature for {location}")
    except requests.RequestException as e:
        raise Exception(f"Network error while fetching temperature: {str(e)}")
    except KeyError as e:
        raise Exception(f"Error parsing weather data: Missing {str(e)} in API response")
    except Exception as e:
        raise Exception(f"Unexpected error while fetching temperature: {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').
    """
    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)}"


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


GradioUI(agent).launch()