import dotenv
import os
import random
dotenv.load_dotenv()

DEFAULT_SKIP = 0
DEFAULT_PAGE = 1
DEFAULT_LIMIT = 10
DEFAULT_ORDER_BY = "id"
DEFAULT_ORDER = "desc"

# jwt
JWT_ALGORITHM = os.getenv("JWT_ALGORITHM")
JWT_SECRET = os.getenv("JWT_SECRET")
JWT_EXPIRE_MINUTES = os.getenv("JWT_EXPIRE_MINUTES")

def generateOTP(length: int = 6) -> str:
    """
    Generate a secure numeric OTP (One-Time Password) of specified length.
    
    Args:
        length: Length of the OTP to generate (default: 6)
    
    Returns:
        A string containing the generated numeric OTP
    """
    if length < 4:
        # Ensure minimum security with at least 4 characters
        length = 4
        
    # Generate a numeric OTP with exactly 'length' digits
    # This ensures we get a number with the correct number of digits
    # For example, length=6 gives a number between 100000-999999
    return str(random.randint(10**(length-1), 10**length - 1))