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

from __future__ import annotations
from typing import TYPE_CHECKING

from ...lib.util import copy
from .Cmd import Cmd

if TYPE_CHECKING:
    from ..CmdPosix import CmdPosix
    from argparse import Namespace, ArgumentParser

class CmdCopy(Cmd): # export

    def __init__(self, parent: CmdPosix) -> None:
        super().__init__(parent, 'copy', help="Copy files")

    def add_arguments(self, parser: ArgumentParser) -> None:
        super().add_arguments(parser)
        parser.add_argument('src', help='Source file URI')
        parser.add_argument('dst', help='Destination file URI')
        parser.add_argument('-o', '--owner', default=None, help='Destination file owner')
        parser.add_argument('-g', '--group', default=None, help='Destination file group')
        parser.add_argument('-m', '--mode', default=None, help='Destination file mode')
        parser.add_argument('-F', '--fixed-strings', action='store_true',
                            help='Don\'t expand platform info macros in <src> and <dst>')

    async def _run(self, args: Namespace) -> None:
        def __expand(url: str) -> str:
            if args.fixed_strings:
                return url
            return self.app.distro_info(url)
        await copy(__expand(args.src), __expand(args.dst),
                   owner=args.owner, group=args.group, mode=args.mode)