# Copyright (c) 2014, Roger Duran
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the \"Software\"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED \"AS IS\", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

"""
    Command-line wrapper to run commands and add rules to new windows
"""

import argparse
import atexit
import subprocess

from libqtile import ipc
from libqtile.command import graph


def run_cmd(opts) -> None:
    if opts.socket is None:
        socket = ipc.find_sockfile()
    else:
        socket = opts.socket
    client = ipc.Client(socket)
    root = graph.CommandGraphRoot()

    cmd = [opts.cmd]
    if opts.args:
        cmd.extend(opts.args)

    proc = subprocess.Popen(cmd)
    match_args = {"net_wm_pid": proc.pid}
    rule_args = {"float": opts.float, "intrusive": opts.intrusive,
                 "group": opts.group, "break_on_match": not opts.dont_break}

    cmd = root.call("add_rule")
    _, rule_id = client.send((root.selectors, cmd.name, (match_args, rule_args), {}))

    def remove_rule() -> None:
        cmd = root.call("remove_rule")
        client.send((root.selectors, cmd.name, (rule_id,), {}))

    atexit.register(remove_rule)

    proc.wait()


def add_subcommand(subparsers, parents):
    parser = subparsers.add_parser(
        "run-cmd",
        parents=parents,
        help="A wrapper around the command graph"
    )
    parser.add_argument(
        '-s',
        '--socket',
        help='Use specified communication socket.')
    parser.add_argument(
        '-i',
        '--intrusive',
        action='store_true',
        help='If the new window should be intrusive.')
    parser.add_argument(
        '-f',
        '--float',
        action='store_true',
        help='If the new window should be float.')
    parser.add_argument(
        '-b',
        '--dont-break',
        action='store_true',
        help='Do not break on match (keep applying rules).')
    parser.add_argument(
        '-g',
        '--group',
        help='Set the window group.')
    parser.add_argument(
        'cmd',
        help='Command to execute.'),
    parser.add_argument(
        'args',
        nargs=argparse.REMAINDER,
        metavar='[args ...]',
        help='Optional arguments to pass to command.'
    )
    parser.set_defaults(func=run_cmd)
