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

# Copyright © 2008 Jeffrey C. Ollie

# 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 3 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, see
# <http://www.gnu.org/licenses/>.

import sys
import re
import os
import time
import pwd
import socket

from qpid.util import connect
from qpid.connection import Connection
from qpid.datatypes import Message, RangedSet, uuid4
from qpid.queue import Empty

from lxml import etree

host = '127.0.0.1'
port = 5672

root_element = etree.Element('loginfo')

timestamp = time.time()
timestamp_element = etree.SubElement(root_element, 'timestamp')
timestamp_element.text = '%17.6f' % timestamp

uid = os.getuid()
pwd_entry = pwd.getpwuid(uid)

username = pwd_entry[0].decode('utf-8')
username_element = etree.SubElement(root_element, 'username')
username_element.text = username

fullname = pwd_entry[4].decode('utf-8')
fullname_element = etree.SubElement(root_element, 'fullname')
fullname_element.text = fullname


cvsserver_element = etree.SubElement(root_element, 'cvsserver')
cvsserver_element.text = socket.gethostname()

cvsroot = os.environ['CVSROOT']

cvsroot_element = etree.SubElement(root_element, 'cvsroot')
cvsroot_element.text = cvsroot

directory_re = re.compile(r'^Update of %s/(.*)$' % (cvsroot,), re.M)

message = sys.stdin.read().decode('utf-8', 'replace')

directory_match = directory_re.search(message)
assert(directory_match)
directory = directory_match.group(1)

directory_element = etree.SubElement(root_element, 'directory')
directory_element.text = directory

filespecs = sys.argv[1].decode('utf-8')
assert(filespecs.startswith(directory + ' '))

filespecs = filespecs[len(directory)+1:]

new_dir_re = re.compile('(.*) - New directory')

filespec_re = re.compile(r'^(.*?),(\d+(?:\.\d+)+|NONE),(\d+(?:\.\d+)+|NONE),(\S*)\s*')

files_element = etree.SubElement(root_element, 'files')

while len(filespecs) > 0:
    filespec_match = filespec_re.match(filespecs)
    assert(filespec_match)
    file_element = etree.SubElement(files_element, 'file')
    filename_element = etree.SubElement(file_element, 'filename')
    filename_element.text = filespec_match.group(1)
    old_version_element = etree.SubElement(file_element, 'old-version')
    old_version_element.text = filespec_match.group(2)
    new_version_element = etree.SubElement(file_element, 'new-version')
    new_version_element.text = filespec_match.group(3)
    if filespec_match.group(4):
        tag_element = etree.SubElement(file_element, 'tag')
        tag_element.text = filespec_match.group(4)

    filespecs = filespecs[filespec_match.end():]

message_element = etree.SubElement(root_element, 'message')
message_element.text = message

socket = connect(host, port)
connection = Connection(sock = socket)
connection.start()
session = connection.session(str(uuid4()))

properties = session.delivery_properties(routing_key = 'loginfo')
session.message_transfer(destination='cvs_exchange',
                         message = Message(properties,
                                           etree.tostring(root_element,
                                                          encoding = 'utf-8',
                                                          xml_declaration = True)))

session.close(timeout=10)