import datetime

from django.contrib.auth.models import User
from django.db import models
from sorl.thumbnail import ImageField

from utils import render_creole


class Project(models.Model):
    """A project.
    """
    name = models.CharField('Name', max_length=100)
    slug = models.SlugField('Slug', unique=True)
    description = models.TextField('Beschreibung',
            help_text='Es kann <a href="http://wikicreole.org/" target="blank">Creole als Markup</a> benutzt werden.')
    description_html = models.TextField(editable=False)
    contact_email = models.EmailField('E-Mail', blank=True)
    contact_url = models.URLField('URL', blank=True)
    contact_user = models.ForeignKey(User, verbose_name='Ansprechpartner')
    image = ImageField('Bild', upload_to='projects', blank=True)
    date_created = models.DateTimeField('Erstellungsdatum', editable=False)
    date_updated = models.DateTimeField('Aktualisierungsdatum', editable=False)

    class Meta:
        ordering = ['name']
        verbose_name = 'Projekt'
        verbose_name_plural = 'Projekte'

    def __unicode__(self):
        return self.name

    def save(self, *args, **kwargs):
        if not self.id:
            self.date_created = datetime.datetime.now()
        self.date_updated = datetime.datetime.now()
        self.description_html = render_creole(self.description)
        return super(Project, self).save(*args, **kwargs)

    @models.permalink
    def get_absolute_url(self):
        return ('projects_detail', (), {'slug': self.slug})