import datetime

from django.db import models

from django.utils.translation import ugettext_lazy as _

from symposion.conference.models import Conference

class SponsorLevel(models.Model):

    conference = models.ForeignKey(Conference, verbose_name=_("conference"))

    name = models.CharField(_("name"), max_length=100)

    order = models.IntegerField(_("order"), default=0)

    description = models.TextField(_("description"), blank=True)

    class Meta:

        ordering = ["conference", "order"]

        verbose_name = _("sponsor level")

        verbose_name_plural = _("sponsor levels")

    def __unicode__(self):

        return u"%s %s" % (self.conference, self.name)

    def sponsors(self):

        return self.sponsor_set.filter(active=True).order_by("added")

class Sponsor(models.Model):

    name = models.CharField(_("name"), max_length=100)

    external_url = models.URLField(_("external URL"))

    annotation = models.TextField(_("annotation"), blank=True)

    contact_name = models.CharField(_("contact_name"), max_length=100)

    contact_email = models.EmailField(_(u"Contact e\u2011mail"))

    logo = models.ImageField(_("logo"), upload_to="sponsor_logos/")

    level = models.ForeignKey(SponsorLevel, verbose_name=_("level"))

    added = models.DateTimeField(_("added"), default=datetime.datetime.now)

    active = models.BooleanField(_("active"), default=False)

    def __unicode__(self):

        return self.name

    class Meta:

        verbose_name = _("sponsor")

        verbose_name_plural = _("sponsors")