# -*- coding: utf-8 -*-
from django.db import models
from django.db.models.signals import post_save
from hvad.models import TranslatableModel, TranslatedFields
from django.contrib.contenttypes import generic
from django.db.models.signals import post_save
from functions.signal_handlers import post_save_handler


class Photoreport(TranslatableModel):
    #photo = models.ManyToManyField(Photo, blank=True, null=True, related_name='photos')
    url=models.SlugField(unique=True)
    exposition = models.ForeignKey('exposition.Exposition', null=True)
    conference = models.ForeignKey('conference.Conference', null=True)
    seminar = models.ForeignKey('seminar.Seminar', null=True)

    files = generic.GenericRelation('file.FileModel', content_type_field='content_type', object_id_field='object_id')
    photos = generic.GenericRelation('file.Photo', content_type_field='content_type', object_id_field='object_id')

    main_page = models.PositiveIntegerField(default=0, db_index=True)
    views = models.PositiveIntegerField(default=0)

    translations = TranslatedFields(
        name = models.CharField(max_length=30),
        description = models.TextField(blank=True),
        #-----meta data---------
        title = models.CharField(max_length=250, blank=True),
        descriptions = models.CharField(max_length=250, blank=True),
        keywords = models.CharField(max_length=250,blank=True),
    )

    def get_event(self):
        if self.exposition:
            return self.exposition
        if self.conference:
            return self.conference
        if self.seminar:
            return self.seminar

        return None

    def get_photos(self):
        return self.photos.all()

    def get_photos_count(self):
        return len(self.photos.all())

post_save.connect(post_save_handler, sender=Photoreport)