'''
Task Coach - Your friendly task manager
Copyright (C) 2004-2013 Task Coach developers <developers@taskcoach.org>

Task Coach 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.

Task Coach 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 os, re, glob, sys

packages = []
modules = []
classdef = re.compile('class ([A-Za-z]+)\(([^)]+)\)', re.MULTILINE)

def stripmodule(classname):
    return classname.split('.')[-1]

print 'digraph G {\nrankdir="LR"'

for filename in glob.glob(os.path.join(sys.argv[1], '*.py')):
    contents = file(filename).read()
    matches = classdef.findall(contents)
    if not matches:
        continue

    module = os.path.basename(filename)[:-len('.py')]
    print 'subgraph cluster%s {'%module
    print 'label=%s'%module
    print ' '.join([classes[0] for classes in matches])
    print '}\n'
    for match in matches:
        class_ = stripmodule(match[0])
        superclasses = re.sub('\s', '', match[1]).split(',')
        for superclass in superclasses:
            if superclass == 'object':
                continue
            print '%s->%s'%(stripmodule(superclass), class_)
    print

print '}'

