from django.contrib.auth.models import AbstractBaseUser, PermissionsMixin
from django.db import models
import datetime
from django.core.validators import MaxValueValidator, MinValueValidator
from django.utils.translation import gettext_lazy as _


def current_year():
    return datetime.date.today().year


def max_value_current_year(value):
    return MaxValueValidator(current_year())(value)


class Autor(models.Model):
    nombre = models.CharField(max_length=200)
    biografia = models.TextField(blank=True, null=True)
    foto = models.ImageField(upload_to='autores/', blank=True, null=True)  # Nuevo campo

    def __str__(self):
        return self.nombre


class Libro(models.Model):
    titulo = models.CharField(max_length=200)
    autor = models.ForeignKey(Autor, on_delete=models.CASCADE)
    fecha_publicacion = models.PositiveBigIntegerField(default=current_year(), validators=[MinValueValidator(1984), max_value_current_year])
    descripcion = models.TextField(blank=True, null=True)
    archivo = models.FileField(upload_to='libros/')
    portada = models.ImageField(upload_to='portadas/', blank=True, null=True)  # Nuevo campo

    def __str__(self):
        return self.titulo