import abc
from typing import *
import royalnet
import royalnet.commands as rc
import royalnet.utils as ru
from ...tables import DndBattleUnit
from ...utils import get_targets


class DndBattleTargetCommand(rc.Command, abc.ABC):
    @abc.abstractmethod
    async def _change(self, unit: DndBattleUnit, args: List[str]):
        ...

    async def run(self, args: rc.CommandArgs, data: rc.CommandData) -> None:
        target = args[0]
        units = await get_targets(data, target)
        if len(units) == 0:
            raise rc.InvalidInputError(f"No targets found matching [c]{target}[/c].")

        for unit in units:
            await self._change(unit, args[1:])

        await data.session_commit()

        message = []
        for unit in units:
            message.append(f"{unit}")

        await data.reply("\n\n".join(message))