from django.core.urlresolvers import reverse
from django.db import models
from django.utils import timezone


def photo_filename(instance, filename):
    from slugify import slugify_filename

    return 'photo_uploads/' + slugify_filename(filename)


class Promo(models.Model):
    created = models.DateTimeField('Дата и время', auto_now_add=True, editable=False)
    act_from = models.DateTimeField('От', editable=True)
    act_to = models.DateTimeField('До', editable=True)
    title = models.CharField('Заголовок', max_length=512, null=False, blank=False, unique=True)
    slug = models.SlugField('Ссылка', max_length=512, null=False, blank=False, unique=True)
    text = models.TextField('Акция', null=False, blank=False)
    is_public = models.BooleanField('Публиковать', default=True)
    image = models.ImageField('Картинка', upload_to=photo_filename)

    class Meta:
        verbose_name = 'акция'
        verbose_name_plural = 'акции'

    def __str__(self):
        return self.title

    def get_absolute_url(self):
        return reverse('promo_detail', args=(self.slug,))

    def get_status(self):
        from datetime import datetime
        if datetime.now() < self.act_from:
            return 0
        elif self.act_from < datetime.now() < self.act_to:
            return 1
        else:
            return 2

# class NewsComment(models.Model):
#     created = models.DateTimeField('Дата и время', auto_now_add=True, editable=False)
#     name = models.CharField('Имя', max_length=45, null=False, blank=False)
#     email = models.EmailField('Email (не будет опубликован)', null=False, blank=False)
#     text = models.TextField('Комментарий', null=False, blank=False)
#     reply_to = models.ForeignKey('self', null=True, blank=True)
#     news = models.ForeignKey(News, related_name='comments')

#     class Meta:
#         verbose_name = 'комментарий'
#         verbose_name_plural = 'комментарии'

#     def __str__(self):
#         return '{}: {}'.format(self.name, self.news.title)