import sys
from src.logger import logging

def error_message_detail(error,error_detail:sys):
    exc_tb = getattr(error_detail, '__traceback__', None)
    if exc_tb is None:
        _, _, exc_tb = sys.exc_info()

    if exc_tb is not None:
        file_name = exc_tb.tb_frame.f_code.co_filename
        line_number = exc_tb.tb_lineno
    else:
        file_name = "unknown"
        line_number = "unknown"
        
    error_message = "Error occured in python script name [{0}] line number [{1}] eror message [{2}]".format(
        file_name, line_number, str(error)
    )
    
    return error_message

class CustomException(Exception):
    def __init__(self,error_message,error_detail:sys):
        super().__init__(error_message)
        self.error_message=error_message_detail(error_message,error_detail=error_detail)

    def __str__(self):
        return self.error_message
    

if __name__=="__main__":

    try:
        a= 1/0
    except Exception as e:
        logging.info("Divide by zero")
        raise CustomException(e,sys)