## $Id: batching.py 7264 2011-12-04 13:34:26Z uli $
##
## Copyright (C) 2011 Uli Fouquet & Henrik Bettermann
## 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
##
"""Batch processing for applicants.
"""
import grok
from zope.interface import Interface
from waeup.sirp.interfaces import IBatchProcessor
from waeup.sirp.utils.batching import BatchProcessor
from waeup.sirp.applicants.interfaces import (
    IApplicantsContainer, IApplicant)

class ApplicantsContainerImporter(BatchProcessor):
    """An importer for applicants containers.
    """
    grok.implements(IBatchProcessor)
    grok.provides(IBatchProcessor)
    grok.context(Interface)
    util_name = 'applicants container importer'
    grok.name(util_name)

    name = u'Applicants Container Importer'
    mode = u'create'
    iface = IApplicantsContainer

    location_fields = ['code',]
    factory_name = 'waeup.ApplicantsContainer'

    def parentsExist(self, row, site):
        return 'applicants' in site.keys()

    def entryExists(self, row, site):
        return row['code'] in site['applicants'].keys()

    def getParent(self, row, site):
        return site['applicants']

    def getEntry(self, row, site):
        if not self.entryExists(row, site):
            return None
        parent = self.getParent(row, site)
        return parent.get(row['code'])

    def addEntry(self, obj, row, site):
        parent = self.getParent(row, site)
        parent[row['code']] = obj
        return

    def delEntry(self, row, site):
        parent = self.getParent(row, site)
        del parent[row['code']]
        return

class ApplicantImporter(BatchProcessor):
    """A batch processor for IApplicant objects.
    """
    grok.implements(IBatchProcessor)
    grok.provides(IBatchProcessor)
    grok.context(Interface)
    util_name = 'applicantimporter'
    grok.name(util_name)
    name = u'Applicant Importer'
    iface = IApplicant
    location_fields = []
    factory_name = 'waeup.Applicant'
    location_fields = ['container_code', 'application_number']

    mode = None

    @property
    def req(self):
        result = dict(
            create = ['container_code'] + self.required_fields,
            update = self.location_fields,
            remove = self.location_fields,
        )
        return result

    def parentsExist(self, row, site):
        if not 'applicants' in site.keys():
            return False
        return row['container_code'] in site['applicants'].keys()

    def entryExists(self, row, site):
        return self.getEntry(row, site) is not None

    def getParent(self, row, site):
        return site['applicants'][row['container_code']]

    def getEntry(self, row, site):
        if not self.parentsExist(row, site):
            return None
        parent = self.getParent(row, site)
        return parent.get(row.get('application_number', None), None)

    def addEntry(self, obj, row, site):
        parent = self.getParent(row, site)
        parent.addApplicant(obj)
        return

    def delEntry(self, row, site):
        if self.entryExists(row, site):
            parent = self.getParent(row, site)
            del parent[row['application_number']]
        pass