"""Basic build helper folder. Contain generic command related methods."""
import importlib


__COMMANDS__ = {'reserve_payouts.dynamodb_clean',
                'reserve_payouts.sqs_clean',
                'reserve_payouts.filter_phys_transactions'}


def get_package_name(cmd):
    """Return package name from command.

    Args:
        cmd (string): full command for execution

    Returns:
        (string): package name.

    """
    result_list = cmd.split('.')
    return result_list[0]


def get_package(package_name):
    """Return package from package name.

    Args:
        package_name (string): package, where look for commands.

    Returns:
        (module): package.

    """
    return importlib.import_module('.commands.{}'.format(package_name),
                                   __name__)


def get_command_name(cmd):
    """Return package name from command.

    Args:
        cmd (string): full command for execution

    Returns:
        (string): command name to look in package.

    """
    result_list = cmd.split('.')
    return result_list[1]