from django.conf import settings
from django.db import models

from apps.catalog.models import Product, Service
from apps.orders.models import Order


class ReviewStatus(models.TextChoices):
    PENDING = 'pending', 'На модерации'
    PUBLISHED = 'published', 'Опубликован'
    REJECTED = 'rejected', 'Отклонён'


class Review(models.Model):
    """Отзыв на товар/услугу после подтверждённого заказа (ТЗ §3.5)."""

    order = models.ForeignKey(
        Order, on_delete=models.CASCADE, related_name='reviews',
        verbose_name='Заказ',
    )
    author = models.ForeignKey(
        settings.AUTH_USER_MODEL, on_delete=models.CASCADE,
        related_name='reviews', verbose_name='Автор',
    )
    product = models.ForeignKey(
        Product, null=True, blank=True, on_delete=models.CASCADE,
        related_name='reviews', verbose_name='Товар',
    )
    service = models.ForeignKey(
        Service, null=True, blank=True, on_delete=models.CASCADE,
        related_name='reviews', verbose_name='Услуга',
    )
    rating = models.PositiveSmallIntegerField('Оценка', default=5)
    text = models.TextField('Текст отзыва', blank=True)
    images = models.JSONField('Фото', default=list, blank=True)
    brand_reply = models.TextField('Ответ бренда', blank=True)

    status = models.CharField(
        'Статус', max_length=20, choices=ReviewStatus.choices,
        default=ReviewStatus.PENDING,
    )
    created_at = models.DateTimeField('Создан', auto_now_add=True)

    class Meta:
        verbose_name = 'Отзыв'
        verbose_name_plural = 'Отзывы'
        ordering = ('-created_at',)

    def __str__(self):
        return f'Отзыв #{self.pk} ({self.rating}/5)'