#!/usr/bin/python
#
# Copyright (C) 2010-2011, Benjamin Drung <bdrung@ubuntu.com>
#
# Permission to use, copy, modify, and/or distribute this software for any
# purpose with or without fee is hereby granted, provided that the above
# copyright notice and this permission notice appear in all copies.
#
# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

import optparse
import os
import shutil
import sys
import tempfile

from devscripts.logger import Logger

from ubuntutools.config import UDTConfig
from ubuntutools.builder import get_builder
from ubuntutools.sponsor_patch.sponsor_patch import (sponsor_patch,
                                                     check_dependencies)

def parse(script_name):
    """Parse the command line parameters."""
    usage = ("%s [options] <bug number>\n" % (script_name)
             + "One of --upload, --workdir, or --sponsor must be specified.")
    epilog = "See %s(1) for more info." % (script_name)
    parser = optparse.OptionParser(usage=usage, epilog=epilog)

    parser.add_option("-b", "--build", dest="build",
                      help="Build the package with the specified builder.",
                      action="store_true", default=False)
    parser.add_option("-B", "--builder", dest="builder", default=None,
                      help="Specify the package builder (default pbuilder)")
    parser.add_option("-e", "--edit",
                      help="launch sub-shell to allow editing of the patch",
                      dest="edit", action="store_true", default=False)
    parser.add_option("-k", "--key", dest="keyid", default=None,
                      help="Specify the key ID to be used for signing.")
    parser.add_option("-l", "--lpinstance", dest="lpinstance", default=None,
                      help="Launchpad instance to connect to "
                           "(default: production)",
                      metavar="INSTANCE")
    parser.add_option("--no-conf", dest="no_conf", default=False,
                      help="Don't read config files or environment variables.",
                      action="store_true")
    parser.add_option("-s", "--sponsor", help="sponsoring; equals -b -u ubuntu",
                      dest="sponsoring", action="store_true", default=False)
    parser.add_option("-u", "--upload", dest="upload", default=None,
                      help="Specify an upload destination (default none).")
    parser.add_option("-U", "--update", dest="update", default=False,
                      action="store_true",
                      help="Update the build environment before building.")
    parser.add_option("-v", "--verbose", help="print more information",
                      dest="verbose", action="store_true", default=False)
    parser.add_option("-w", "--workdir", dest="workdir", default=None,
                      help="Specify a working directory (default is a "
                           "temporary directory, deleted afterwards).")

    (options, args) = parser.parse_args()
    Logger.set_verbosity(options.verbose)
    check_dependencies()

    if len(args) == 0:
        Logger.error("No bug number specified.")
        sys.exit(1)
    elif len(args) > 1:
        Logger.error("Multiple bug numbers specified: %s" % (", ".join(args)))
        sys.exit(1)

    bug_number = args[0]
    if bug_number.isdigit():
        bug_number = int(bug_number)
    else:
        Logger.error("Invalid bug number specified: %s" % (bug_number))
        sys.exit(1)

    config = UDTConfig(options.no_conf)
    if options.builder is None:
        options.builder = config.get_value("BUILDER")
    if options.lpinstance is None:
        options.lpinstance = config.get_value("LPINSTANCE")
    if not options.update:
        options.update = config.get_value("UPDATE_BUILDER", boolean=True)
    if options.workdir is None:
        options.workdir = config.get_value("WORKDIR")
    if options.keyid is None:
        options.keyid = config.get_value("KEYID")

    if options.sponsoring:
        options.build = True
        options.upload = "ubuntu"

    return (options, bug_number)

def main():
    script_name = os.path.basename(sys.argv[0])
    (options, bug_number) = parse(script_name)

    builder = get_builder(options.builder)
    if not builder:
        sys.exit(1)

    if not options.upload and not options.workdir:
        Logger.error("Please specify either a working directory or an upload "
                     "target!")
        sys.exit(1)

    if options.workdir is None:
        workdir = tempfile.mkdtemp(prefix=script_name+"-")
    else:
        workdir = options.workdir

    try:
        sponsor_patch(bug_number, options.build, builder, options.edit,
                      options.keyid, options.lpinstance, options.update,
                      options.upload, workdir)
    except KeyboardInterrupt:
        print "\nUser abort."
        sys.exit(2)
    finally:
        if options.workdir is None:
            shutil.rmtree(workdir)

if __name__ == "__main__":
    main()