# -*- coding: utf-8 -*-
##############################################################################
#
# Copyright (c) 2009 Nexedi SA and Contributors. All Rights Reserved.
#                    Jean-Paul Smets-Solanes <jp@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.
#
##############################################################################

import zope.interface
from AccessControl import ClassSecurityInfo
from Products.CMFCore.utils import getToolByName
from Products.ERP5Type import Permissions, PropertySheet, interfaces
from Products.ERP5Type.XMLObject import XMLObject

class QuantitySplitSolver(XMLObject):
  """
  QUESTION: is a solver a process ? (ie. subprocess of Solver Process)
  """
  meta_type = 'ERP5 Quantity Split Solver'
  portal_type = 'Quantity Split Solver'
  add_permission = Permissions.AddPortalContent
  isPortalContent = 1
  isRADContent = 1
  isIndexable = 0 # We do not want to fill the catalog with objects on which we need no reporting

  # Declarative security
  security = ClassSecurityInfo()
  security.declareObjectProtected(Permissions.AccessContentsInformation)

  # Default Properties
  property_sheets = ( PropertySheet.Base
                    , PropertySheet.XMLObject
                    , PropertySheet.CategoryCore
                    , PropertySheet.DublinCore
                    , PropertySheet.Arrow
                    )
  # Declarative interfaces
  zope.interface.implements(interfaces.ISolver,
                            interfaces.IConfigurable,
                           )

  # ISolver Implementation
  def solve(self):
    """
    """    
    for delivery_line in self.getDeliveryValueList(): 
      decision_quantity = delivery_line.getQuantity()
      simulation_movement_list = self.getDeliveryRelatedValueList()
      delivery_solver = self.portal_solvers.newDeliverySolver(self.getDeliverySolver(), simulation_movement_list)
      # Update the quantity using delivery solver algorithm
      split_list = delivery_solver.setTotalQuantity(decision_quantity)
      # Create split movements
      for (simulation_movement, split_quantity) in split_list:
        new_movement = simulation_movement.copy() # Copy at same level
        new_movement._setQuantity(split_quantity)
        new_movement._setStartDate(self.getStartDate())
        new_movement._setStopDate(self.getStopDate())