#!/usr/bin/python
#
# Copyright 2011 Red Hat, Inc.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
#
# Refer to the README and COPYING files for full details of the license
#

import hooking
from vdsm.config import config

if config.getboolean('vars', 'fake_kvm_support'):
    domxml = hooking.read_domxml()

    graphics = domxml.getElementsByTagName("graphics")[0]
    graphics.removeAttribute("passwdValidTo")

    for memtag in ("memory", "currentMemory"):
        memvalue = domxml.getElementsByTagName(memtag)[0]
        while memvalue.firstChild:
            memvalue.removeChild(memvalue.firstChild)
        memvalue.appendChild(domxml.createTextNode("20480"))

    for cputag in domxml.getElementsByTagName("cpu"):
        cputag.parentNode.removeChild(cputag)

    devices = domxml.getElementsByTagName('devices')[0]
    if devices.getElementsByTagName('emulator'):
        pass # TODO override emulator tag
    else:
        emulator = domxml.createElement('emulator')
        emulatorPath = domxml.createTextNode('/usr/libexec/vdsm/vdsm-faqemu')
        emulator.appendChild(emulatorPath)
        devices.appendChild(emulator)

    hooking.write_domxml(domxml)
