import os
import requests
import pandas as pd
from smolagents import tool

HF_AGENTS_API_URL = "https://agents-course-unit4-scoring.hf.space"
api_key = os.environ.get("hf_token")



@tool
def multiply(a: int, b: int) -> int:
    """Multiply two numbers.
    Args:
        a: first real number
        b: second real number
    """
    return a * b


@tool
def add(a: int, b: int) -> int:
    """Add two numbers.

    Args:
        a: first real number
        b: second real number
    """
    return a + b


@tool
def subtract(a: int, b: int) -> int:
    """Subtract two numbers.

    Args:
        a: first real number
        b: second real number
    """
    return a - b


@tool
def divide(a: int, b: int) -> int:
    """Divide two numbers.

    Args:
        a: first real number
        b: second real number
    """
    if b == 0:
        raise ValueError("Cannot divide by zero.")
    return a / b


@tool
def modulus(a: int, b: int) -> int:
    """Get the modulus of two numbers.

    Args:
        a: first real number
        b: second real number
    """
    return a % b

@tool
def task_file_downloader(task_id: str, file_path: str) -> None:
    """
    Download the file from the task id and save it to the file path.
    Args:
        task_id: The id of the task to download the file from.
        file_path: The full path to save the file to.
    """
    response = requests.get(f"{HF_AGENTS_API_URL}/files/{task_id}").content
    with open(file_path, "wb") as f:
        f.write(response)

@tool
def read_excel_tool(excel_file:str)->str:
    """
    This tool is used to read the Excel file using pandas library
        Args:
            excel_file: the location or file name of the Excel
    """
    try:
        data_frame = pd.read_excel(excel_file)
        str_df = data_frame.to_string()
        return str_df
    except FileNotFoundError as e:
        return f'Error occurred during tool usage{e}'