#!/usr/bin/env python3
#
# Copyright 2008, 2013, 2014  Red Hat, Inc.
# Joey Boggs <jboggs@redhat.com>
# Cole Robinson <crobinso@redhat.com>
#
# Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
# 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.

import sys

from virtinst import cli
from virtinst.cli import fail, print_stderr, print_stdout

from virtconv import VirtConverter

# Example appliances:
#
# OVF/OVA:
#   http://virtualboxes.org/tag/ova/
# VMX, but they are all multipart which is current unsupported
#   http://www.thoughtpolice.co.uk/vmware/
# Minix VMX:
#   http://download.minix3.org/iso/minix3_1_2a_vmware.zip

# Simple live test with
#  ./virt-convert --connect test:///default tests/virtconv-files/vmx_input/test-nodisks.vmx


#####################
# Argument handling #
#####################

def parse_args():
    desc = _(
"Convert an OVF or VMX appliance to native libvirt XML, and run "
"the guest.\nThe VM contents are not altered. Disk images are "
"copied to the hypervisor\ndefault storage location.\n\n"
"Examples:\n"
"  virt-convert fedora18.ova\n"
"  virt-convert centos6.zip --disk-format qcow2"
)
    parser = cli.setupParser(
        "%(prog)s inputconfig [options]", desc)

    parser.add_argument("input", metavar="inputconfig", nargs=1,
        help=_("Conversion input. Can be a ovf/vmx file, a directory "
               "containing a config and disk images, or a zip/ova/7z/etc "
               "archive."))
    cli.add_connect_option(parser)

    cong = parser.add_argument_group("Conversion Options")
    cong.add_argument("-i", "--input-format",
                    help=_("Force the input format. 'vmx' or 'ovf'"))
    cong.add_argument("-D", "--disk-format", default='raw',
                    help=_("Output disk format. default is 'raw'. "
                           "Disable conversion with 'none'"))
    cong.add_argument("--destination", default=None,
                    help=_("Destination directory the disk images should be "
                           "converted/copied to. Defaults to the default "
                           "libvirt directory."))

    misc = parser.add_argument_group("Miscellaneous Options")
    cli.add_misc_options(misc, dryrun=True, printxml=True, noautoconsole=True)

    options = parser.parse_args()
    options.input = options.input[0]

    return options


#######################
# Functional handlers #
#######################

def main(conn=None):
    cli.earlyLogging()
    options = parse_args()
    cli.setupLogging("virt-convert", options.debug, options.quiet)

    if conn is None:
        conn = cli.getConnection(options.connect)
    if options.xmlonly:
        options.dry = True
        options.quiet = True
        options.autoconsole = False

    print_cb = print_stdout
    if options.quiet:
        print_cb = None

    converter = VirtConverter(conn, options.input,
        input_name=options.input_format, print_cb=print_cb)
    try:
        converter.convert_disks(options.disk_format or "none",
            destdir=options.destination, dry=options.dry)

        guest = converter.get_guest()

        conscb = None
        if options.autoconsole:
            conscb = cli.get_console_cb(guest) or None

        if options.xmlonly:
            print_stdout(guest.start_install(return_xml=True)[1],
                do_force=True)
        elif not options.dry:
            print_stdout(_("Creating guest '%s'.") % guest.name)
            guest.start_install()
            cli.connect_console(guest, conscb, True)
    except Exception:
        converter.cleanup()
        raise

    return 0


if __name__ == "__main__":
    try:
        sys.exit(main())
    except SystemExit as sys_e:
        sys.exit(sys_e.code)
    except KeyboardInterrupt:
        print_stderr(_("Aborted at user request"))
    except Exception as main_e:
        fail(main_e)