app.py

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

from Gradio_UI import GradioUI

verbose = True

if verbose: printf("Running app.py now\n")

# 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 ?"

## Copied from https://huggingface.co/spaces/iamnamas/nse_stockprice_agent
@tool
def nse_stock_price_tool(stock_ticker:str)-> str: 
    """A tool that is used to retrieve the latest closing price of a stock based on the stock ticker from the Indian Stock Exchange (NSE).
    example: 'RELIANCE.NS'
    Args:
        stock_ticker: The stock ticker/symbol for the stock listed in NSE. The exact string input needs to be provided to the function.
    Returns:
        result_string: A string containing the stock_ticker along with the amount in Rupees.
        example: "RELIANCE NS: 1237.22 Rupees."
    """
    try:
        import math
        import yfinance as yf
        stock_symbol = stock_ticker
        data = yf.download(tickers=stock_symbol, period='1d', interval='1m')
        if len(data):
            latest_data = data.tail(1)
            latest_price = latest_data['Close'].values[0]   
            return (f"{stock_symbol}: {round(latest_price, 2)} Rupees.")
        else:
            return "INVALID TICKER/STOCK"
    except Exception as e:
        traceback.print_exc()
        return "INVALID REQUEST"
        
# Writing my first custom tool
@tool
def toss_a_die(k: int) -> int:
    """A tool to toss a k-sided die / dice and return the value showing on that die / dice.
    Args:
        k: An integer specifying the number of sides on the die. If not specified, a good default would be to assume k=6 sides.
    """
    if k==None: k=6

    try: 
        value = random.randint(1, k)
        return value
    except Exception as e:
        return f"How many sides does the dice have?"

@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 verbose: printf("Defining MODEL_IDS now\n")

MODEL_IDS = [
    'https://wxknx1kg971u7k1n.us-east-1.aws.endpoints.huggingface.cloud/',
    'https://jc26mwg228mkj8dw.us-east-1.aws.endpoints.huggingface.cloud/', 
    'meta-llama/Llama-3.2-1B-Instruct',
    'Qwen/Qwen2.5-Coder-32B-Instruct',
    'Qwen/Qwen2.5-Coder-1.5B-Instruct'
    # Add here wherever model is working for you
]

def is_model_overloaded(model_url):
    """Verify if the model is overloaded doing a test call."""
    try:
        response = requests.post(model_url, json={"inputs": "Test"})
        if response.status_code == 503:  # 503 Service Unavailable = Overloaded
            return True
        return False
    except requests.RequestException:
        return True  # if there are an error is overloaded

def get_available_model():
    """Select the first model available from the list."""
    for model_url in MODEL_IDS:
        print("trying",model_url,"\n")
        if not is_model_overloaded(model_url):
            return model_url
    return MODEL_IDS[0]  # if all are failing, use the first model by dfault

if verbose: printf("Checking available models now\n")

selected_model_id = get_available_model()

model = HfApiModel(
    max_tokens=1048,
    temperature=0.5,
    #model_id='meta-llama/Llama-3.2-1B-Instruct',
    #model_id='Qwen/Qwen2.5-Coder-32B-Instruct',
    #model_id = 'Qwen/Qwen2.5-Coder-1.5B-Instruct',    
    model_id = selected_model_id, # model available selected from the list automatically
    custom_role_conversions=None,
)

# Import tool from Hub
image_generation_tool = load_tool("agents-course/text-to-image", trust_remote_code=True) ## https://huggingface.co/spaces/agents-course/text-to-image

with open("prompts.yaml", 'r') as stream:
    prompt_templates = yaml.safe_load(stream)
    
agent = CodeAgent(
    model=model,
    tools=[final_answer, get_current_time_in_timezone, image_generation_tool, toss_a_die, nse_stock_price_tool], ## add your tools here (don't remove final answer)
    max_steps=3,
    verbosity_level=1,
    grammar=None,
    planning_interval=None,
    name=None,
    description=None,
    prompt_templates=prompt_templates
)


GradioUI(agent).launch()