# -*- coding: utf-8 -*-

#
#  Copyright 2011 Matthias Fuchs
#
#  Licensed under the Apache License, Version 2.0 (the "License");
#  you may not use this file except in compliance with the License.
#  You may obtain a copy of the License at
#
#      http://www.apache.org/licenses/LICENSE-2.0
#
#  Unless required by applicable law or agreed to in writing, software
#  distributed under the License is distributed on an "AS IS" BASIS,
#  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#  See the License for the specific language governing permissions and
#  limitations under the License.
#

import ctypes
import re

def register(packageLib, factory):
    match =  re.match('lib?stromx_(.+)\.(so.*|dll)', packageLib);
    if not match:
        print('Failed to derive package name from "{0}"'.format(packageLib))
    package = match.group(1)
    
    try:
        lib = ctypes.CDLL(packageLib)
    except OSError:
        print('Failed to load {0}'.format(packageLib))
        return 1

    functionName = 'stromxRegister{0}'.format(package.capitalize())
    try:
        function = lib[functionName]
    except AttributeError:
        print('{0}() is not defined'.format(functionName))
        return 1
        
    if function(ctypes.c_void_p(factory._this())):
        print('Failed to call {0}'.format(functionName))
        return 1
    
    return 0
        
