from __future__ import annotations

from ....lib.log import DEBUG, log
from .Cmd import Cmd, Parent
from typing import TYPE_CHECKING

if TYPE_CHECKING:
    from argparse import ArgumentParser, Namespace

class CmdExtract(Cmd):  # export

    def __init__(self, parent: Parent) -> None:
        super().__init__(parent, 'x', help = 'Extract a tar archive')

    def add_arguments(self, parser: ArgumentParser) -> None:
        super().add_arguments(parser)
        parser.add_argument('dst', help = 'Destination root URI')

    async def _run(self, args: Namespace) -> None:
        async with self.ctx(dst = args.dst) as ctx:
            paths = await ctx.extract(ctx.dst.root)
            log(DEBUG, f'Extracted {len(paths)} files')