#!/usr/bin/python
# -*- coding: utf-8 -*-

# Copyright (C) 2013 Canonical Ltd.
# Author: Stéphane Graber <stgraber@ubuntu.com>

# 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; version 3 of the License.
#
# 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, see <http://www.gnu.org/licenses/>.

from __future__ import print_function
from launchpadlib.launchpad import Launchpad

import argparse
import os

parser = argparse.ArgumentParser(
    description="Generate a user readable report of all archive permissions")
parser.add_argument("target", metavar="TARGET",
                    help="Target directory")
args = parser.parse_args()

if not os.path.exists(args.target):
    os.makedirs(args.target)

lp = Launchpad.login_with('permissions', 'production', version="devel")

entries = {"teams": {}, "individuals": {}}

for archive in lp.distributions['ubuntu'].archives:
    for permission in archive.getAllPermissions():
        if permission.person.is_team:
            target = "teams"
        else:
            target = "individuals"

        if not permission.person.name in entries[target]:
            entries[target][permission.person.name] = []

        if permission.component_name:
            entry = "%s: component '%s'" % (permission.permission,
                                            permission.component_name)
            if permission.distro_series_name:
                entry += " for '%s'" % (permission.distro_series_name)
            entries[target][permission.person.name].append(entry)

        if permission.package_set_name:
            entry = "%s: packageset '%s'" % (permission.permission,
                                             permission.package_set_name)
            if permission.distro_series_name:
                entry += " for '%s'" % (permission.distro_series_name)
            entries[target][permission.person.name].append(entry)

        if permission.source_package_name:
            entry = "%s: source '%s'" % (permission.permission,
                                         permission.source_package_name)
            if permission.distro_series_name:
                entry += " for '%s'" % (permission.distro_series_name)
            entries[target][permission.person.name].append(entry)

        if permission.pocket:
            entry = "%s: pocket '%s'" % (permission.permission,
                                         permission.pocket)
            if permission.distro_series_name:
                entry += " for '%s'" % (permission.distro_series_name)
            entries[target][permission.person.name].append(entry)

ubuntudev = [person.name
             for person in lp.people['ubuntu-dev'].getMembersByStatus(
                 status="Approved")]

# Add known exceptions:
ubuntudev += ["ubuntu-backporters", "ubuntu-security", "ubuntu-archive",
              "ubuntu-release", "ubuntu-sru"]

for target, people in entries.items():
    with open(os.path.join(args.target, target), "w+") as fd:
        for user, permissions in sorted(people.items()):
            fd.write("=== %s ===\n" % user)
            if user not in ubuntudev:
                fd.write("Isn't a direct member of ~ubuntu-dev!\n")

            for package in sorted(permissions):
                fd.write(" - %s\n" % package)
            fd.write("\n")