##############################################################################
#
# Copyright (c) 2002-2013 Nexedi SA and Contributors. All Rights Reserved.
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# WARNING: This program as such is intended to be used by professional
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# This program is Free Software; you can redistribute it and/or
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# GNU General Public License for more details.
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from AccessControl import ClassSecurityInfo
from Products.ERP5Type import Permissions
from Products.ERP5Type.Accessor.Constant import PropertyGetter as ConstantGetter
from Products.ERP5.Document.PresencePeriod import PresencePeriod

class GroupCalendarAssignment(PresencePeriod):
  # CMF Type Definition
  meta_type = 'ERP5 Group Calendar Assignment'
  portal_type = 'Group Calendar Assignment'

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

  # XXX GroupCalendarAssignment are not a delivery, but we enable this to be able
  # to search them by date in the module.
  isDelivery = ConstantGetter('isDelivery', value=True)

  security.declareProtected(Permissions.AccessContentsInformation,
                           'getPeriodList')
  def getPeriodList(self):
    period_list = []

    method = self._getTypeBasedMethod("getPeriodList")
    if method is None:
      group_calendar = self.getSpecialiseValue()
      if group_calendar is not None:
        period_list = group_calendar.objectValues(
                                  portal_type=self.getPortalCalendarPeriodTypeList())
    else:
      period_list = method()
    return period_list

  def _getDatePeriodDataList(self):
    result = []
    start_date = self.getStartDate()
    stop_date = self.getStopDate()
    if not(None in (self.getDestinationUid(), start_date)):
      period_list = self.getPeriodList()
      if len(period_list):
        for period in period_list:
          for date_period_data in period._getDatePeriodDataList():
            if date_period_data['start_date'].greaterThanEqualTo(start_date):
              if stop_date is None or date_period_data['stop_date'].lessThanEqualTo(
                  stop_date):
                result.append(date_period_data)
    return result