# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.

"""Replicate repository group owner."""

import os

from mercurial.i18n import _
from mercurial import (
    exchange,
    extensions,
    sshpeer,
    wireprotov1server,
)

OUR_DIR = os.path.dirname(__file__)
ROOT = os.path.normpath(os.path.join(OUR_DIR, "..", ".."))
with open(os.path.join(OUR_DIR, "..", "bootstrap.py")) as f:
    exec(f.read())

from mozhg.util import (
    repo_owner,
)

minimumhgversion = b"4.6"
testedwith = b"4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5 5.9"


@wireprotov1server.wireprotocommand(b"mozowner", b"", permission=b"pull")
def moz_owner_command(repo, proto):
    """Obtain the group owner of the repository."""
    return repo_owner(repo)


def _capabilities(orig, *args, **kwargs):
    caps = orig(*args, **kwargs)
    caps.append(b"moz-owner")
    return caps


class sshv1peer(sshpeer.sshv1peer):
    def mozowner(self):
        self.requirecap(b"moz-owner", _("moz-owner"))
        return self._call(b"mozowner")


def exchange_pull_owner(orig, pullop):
    res = orig(pullop)

    if b"moz-owner" in pullop.stepsdone or not pullop.remote.capable(b"moz-owner"):
        return res

    pullop.stepsdone.add(b"moz-owner")

    group = pullop.remote.mozowner()

    existing = pullop.repo.vfs.tryread(b"moz-owner")
    if existing != group + b"\n":
        pullop.repo.ui.write(b"updating moz-owner file\n")
        with pullop.repo.vfs(b"moz-owner", b"wb", atomictemp=True) as fh:
            fh.write(group + b"\n")


def extsetup(ui):
    extensions.wrapfunction(wireprotov1server, "_capabilities", _capabilities)
    extensions.wrapfunction(exchange, "_pullobsolete", exchange_pull_owner)

    sshpeer.sshv1peer = sshv1peer