# -*- coding: utf-8 -*-
#
# Copyright IRI (2013)
#
# contact@iri.centrepompidou.fr
#
# This software is governed by the CeCILL-B license under French law and
# abiding by the rules of distribution of free software.  You can  use, 
# modify and/ or redistribute the software under the terms of the CeCILL-B
# license as circulated by CEA, CNRS and INRIA at the following URL
# "http://www.cecill.info". 
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from django.conf import settings
from django.db import models
from haystack import signals

import p4l.models.signals


class P4lSignalProcessor(signals.BaseSignalProcessor):
    
    def handle_delete(self, sender, instance, **kwargs):
        if getattr(settings, "REALTIME_INDEXING", True):
            signals.BaseSignalProcessor.handle_delete(self, sender, instance, **kwargs)
    
    def handle_save(self, sender, instance, **kwargs):
        if getattr(settings, "REALTIME_INDEXING", True):
            signals.BaseSignalProcessor.handle_save(self, sender, instance, **kwargs)
    
    def __connect_signals(self, klass):        
        p4l.models.signals.record_saved.connect(self.handle_save, sender=klass)
        models.signals.post_delete.connect(self.handle_delete, sender=klass)        

    def __disconnect_signals(self, klass):
        p4l.models.signals.record_saved.disconnect(self.handle_save, sender=klass)
        models.signals.post_delete.disconnect(self.handle_delete, sender=klass)

    
    def setup(self):
        #put import here to avoid circular         
        from p4l.models.data import Record
        self.__connect_signals(Record)



    def teardown(self):

        from p4l.models.data import Record
        self.__disconnect_signals(Record)