from django.db import models
from django.urls import reverse
from django.contrib.auth.models import Group


class Category(models.Model):
    """Une catégorie de contenu."""
    name = models.CharField(
        max_length=255,
        verbose_name="Nom de la catégorie"
    )
    def get_absolute_url(self):
        return reverse('content:category-list', kwargs={'category_id':self.id})

    def __str__(self):
        return self.name


class Content(models.Model):
    """Un contenu du site (vidéo)."""
    name = models.CharField(
        max_length=255,
        verbose_name="Nom du contenu"
    )
    group_owner = models.ForeignKey(
        Group,
        on_delete=models.CASCADE,
    )
    content_url = models.URLField(
        verbose_name='URL du contenu',
        null=True,
    )
    category = models.ForeignKey(
        Category,
        on_delete=models.SET_NULL,
        verbose_name="Catégorie",
        null=True
    )

    def __str__(self):
        return self.name