##############################################################################
#
# Copyright (c) 2006 Nexedi SARL and Contributors. All Rights Reserved.
#                    Ivan Tyagov <ivan@nexedi.com>
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsability of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# garantees and support are strongly adviced to contract a Free Software
# Service Company
#
# 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 2
# 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
##############################################################################

from xmlrpclib import Server, Fault
from Products.ERP5Type.Tool.WebServiceTool import ConnectionError

class MethodWrapper(object):

  def __init__(self, method, conn):
    self._method = method
    self._conn = conn

  def __call__(self, *args, **kw):
    try:
      if len(kw):
        return self._method, self._conn.server.call(self._conn.session,
                                                    self._method, [kw])
      else:
        return self._method, self._conn.server.call(self._conn.session,
                                                    self._method, [args])
    except Fault, msg:
      error = "XMLRPC error, reason is %s : %s" %(msg.faultCode, msg.faultString,)
      raise ConnectionError(error)



class MagentoXMLRPCConnection:
  """
    Holds an XML-RPC connection to a remote Magento XML-RPC server.
  """

  def __init__(self, url, user_name = None, password = None):
    self.url = url
    self._user_name = user_name
    self._password = password

  def connect(self):
    """Get a handle to a remote connection."""
    url = self.url
    self.server = Server(url)
    if self._user_name is not None and self._password is not None:
      self.session = self.server.login(self._user_name, self._password)
    return self

  def __getattr__(self, name):
    """ Allow to call mehod on connection """
    if not name.startswith("_"):
      return MethodWrapper(name, self)
