from django.contrib.auth.models import AbstractUser
from django.db import models

class User(AbstractUser):
    is_auctioneer = models.BooleanField(default=False)
    
class Item(models.Model):
    item_number = models.CharField(max_length=50, unique=True)
    title = models.CharField(max_length=200)
    description = models.TextField()
    picture = models.ImageField(upload_to='item_pictures/', blank=True, null=True)

    def __str__(self):
        return f"{self.item_number} - {self.title}"

class Favorite(models.Model):
    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name='favorites')
    item = models.ForeignKey(Item, on_delete=models.CASCADE, related_name='favorited_by')
    created_at = models.DateTimeField(auto_now_add=True)

    class Meta:
        unique_together = ('user', 'item')

    def __str__(self):
        return f"{self.user.username} favorited {self.item.title}"