# -*- coding: utf-8 -*-

from argparse import Namespace, ArgumentParser

from ..Cmd import Cmd

class CmdCommands(Cmd): # export

    def __init__(self) -> None:
        super().__init__('commands', help='List available commands')

    def add_arguments(self, parser: ArgumentParser) -> None:
        super().add_arguments(parser)

    def _run(self, args: Namespace) -> None:
        import sys, re, os, glob
        this_dir = os.path.dirname(sys.modules[__name__].__file__)
        ret = []
        for file_name in glob.glob('Cmd*.py', root_dir=this_dir):
            cc_name = re.sub(r'^Cmd|\.py', '', file_name)
            name = re.sub(r'(?<!^)(?=[A-Z])', '-', cc_name).lower()
            ret.append(name)
        print(' '.join(ret))