from .refit_logger import logger


def get_standard_name_number(current_number, number_str_length):
    """Returns a number string filled to the length of the input number

    This function returns the number in a standartized way as a string.
    As input it takes the current number of the string to build and a
    number which determines the length of the string.

    Args:
        current_number (int):   The current number of the item.
        number_str_length (int):    The length of the string which gets returned.

    Examples:
        >>> get_standard_name_number(1, 2)
        '01'
        >>> get_standard_name_number(23, 4)
        '0023'
    """
    # logger.debug(
    #    f"FUNC: get_standard_name_number() index={current_number} string_length={number_str_length}"
    # )
    current_number = str(current_number)
    standard_name_number = str.zfill(current_number, number_str_length)
    # logger.debug(
    #    f"FUNC: get_standard_name_number() return value= '{standard_name_number}'"
    # )
    return standard_name_number


def get_standard_folder_name(name) -> str:
    """Returnes a standard name either from a list or the default value.

    This function sanitizes the input, which gets passed as a list or None from
    argparse. The function either chooses the first entry of the list, given to
    the --name argument or returns the default value 'directory'

    Args:
        name (list[str] | None):    A list of names if passed to the --name argument
                                    or None if no name is passed.

    Returns:
        str:    The file name. Returns 'file' as default value if name argument is 'None'
                otherwise the first element of the list.

    Examples:
        >>> get_standard_file_name(None)
        'file'
        >>> get_standard_file_name(["example"])
        'example'
        >>> get_standard_file_name(["directory_name", "example"])
        'directory_name'
    """

    logger.debug(
        f"FUNC: get_standard_folder_name() MSG: entered function with value: '{name}'"
    )
    standard_folder_name = name[0] if name is not None else "directory"

    logger.debug(
        f"FUNC: get_standard_folder_name() MSG: exiting function with folder name: '{standard_folder_name}'"
    )

    return standard_folder_name


def get_standard_file_name(name) -> str:
    """Returnes a name either from a list or the default value.

    This function sanitizes the input, which gets passed as a list or None from
    argparse. The function either chooses the first entry of the list, given to
    the --name argument or returns the default value 'file'

    Args:
        name (list[str] | None):    A list of names if passed to the --name argument
                                    or None if no name is passed.

    Returns:
        str:    The file name. Returns 'file' as default value if name argument is 'None'
                otherwise the first element of the list.

    Examples:
        >>> get_standard_file_name(None)
        'file'
        >>> get_standard_file_name(["example"])
        'example'
        >>> get_standard_file_name(["file_name", "example"])
        'file_name'
    """

    logger.debug(
        f"FUNC: get_standard_file_name() MSG: entered function with name='{name}'"
    )
    standard_file_name = name[0] if name is not None else "file"
    logger.debug(
        f"FUNC: get_standard_file_name MSG: Continuing with expected input: '{standard_file_name}'"
    )

    logger.debug("FUNC get_standard_file_name() MSG: Exit")
    return standard_file_name