#!/usr/bin/env python
# -*- coding: utf-8 -*-
# Copyright (C) 2021 Igalia S.L.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1.  Redistributions of source code must retain the above copyright
#     notice, this list of conditions and the following disclaimer.
# 2.  Redistributions in binary form must reproduce the above copyright
#     notice, this list of conditions and the following disclaimer in the
#     documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
# ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

import logging
import optparse
import os
import sys

from webkitpy.common.checkout.scm.detection import SCMDetector
from webkitpy.common.checkout.checkout import Checkout
from webkitpy.common.host import Host
from webkitpy.common.system.executive import Executive, ScriptError
from webkitpy.common.system.filesystem import FileSystem
from webkitpy.common.net.bugzilla import Bugzilla
from xml.sax.saxutils import unescape

_log = logging.getLogger(__name__)

option_parser = optparse.OptionParser(usage='usage: %prog [options] revision')
option_parser.add_option('--platform', action='store',
                         help='Platform to use (e.g., "gtk")')
option_parser.add_option('--gtk', action='store_const', dest='platform', const='gtk',
                         help='Alias for --platform=gtk')
option_parser.add_option('--wpe', action='store_const', dest='platform', const='wpe',
                         help='Alias for --platform=wpe')

options, args = option_parser.parse_args()

try:
    port = Host().port_factory.get(options.platform, options)
except NotImplementedError as e:
    _log.error(str(e))
    sys.exit(-1)

scm = SCMDetector(FileSystem(), Executive()).default_scm()

filter_dirs = [ 'gobject', 'glib', 'soup', 'cairo', 'gstreamer', 'atspi', 'adwaita',
                'unix', 'linux', 'CoordinatedGraphics', 'texmap', 'nicosia',
                'WebDriver', 'harfbuzz', 'freetype', 'egl', 'buildstream' ]
if port.name() == 'gtk':
    filter_dirs.extend([ 'gtk', 'wayland', 'x11', 'glx' ])
elif port.name() == 'wpe':
    filter_dirs.extend([ 'wpe', 'libwpe', 'epoxy' ])

log_dirs = []
for root, dirs, dummy in os.walk(os.path.join(scm.checkout_root, 'Source')):
    for d in dirs:
        if d in filter_dirs:
            log_dirs.append(os.path.join(root, d))

command = ['git', 'log', '--pretty=%H', args[0] + '..', 'master', '--']
command.extend (log_dirs)
revisions = Executive().run_command(command).splitlines()

co = Checkout(scm)
bugs = {}
for rev in revisions:
    try:
        info = co.commit_info_for_revision(scm.svn_revision_from_git_commit(rev))
    except Exception as e:
        _log.warn('Error: no commit info found for git revision %s: %s' % (rev, str(e)))
        continue

    if not info:
        _log.warn('Error: no commit info found for git revision %s' % rev)
        continue

    bug_id = info.bug_id()
    if bug_id:
        author_name = info.author_name()
        authors = bugs.setdefault(bug_id, [])
        if author_name not in authors:
            authors.append(author_name)

bugzilla = Bugzilla()
for bug_id in bugs:
    try:
        bug_title = bugzilla.fetch_bug_dictionary(bug_id)['title']
    except:
        _log.error('Error getting info for bug #%s' % (bug_id))
        continue
    bug_title = unescape(bug_title, {"'": "'", """: '"'})
    print(u'Bug %s – %s (%s)' % (bug_id, bug_title, u', '.join(bugs[bug_id])))