from abc import abstractmethod, ABC
from typing import Optional

from paircd.client import Client
from paircd.message import Message
from paircd.server import Server


class CommandHandler(ABC):
    cmd: str
    argc: Optional[int]

    def __init__(self, cmd: str, argc: Optional[int] = None) -> None:
        self.cmd = cmd
        self.argc = argc

    @abstractmethod
    async def handle(self, server: Server, client: Client, msg: Message) -> None:
        pass