from django.db import models
from django.core.validators import MinValueValidator, MaxValueValidator
from core.history import TrackedModel
import pghistory

@pghistory.track()
class ParkReview(TrackedModel):
    """
    A review of a park.
    """
    park = models.ForeignKey(
        'parks.Park',
        on_delete=models.CASCADE,
        related_name='reviews'
    )
    user = models.ForeignKey(
        'accounts.User',
        on_delete=models.CASCADE,
        related_name='park_reviews'
    )
    rating = models.PositiveSmallIntegerField(
        validators=[MinValueValidator(1), MaxValueValidator(10)]
    )
    title = models.CharField(max_length=200)
    content = models.TextField()
    visit_date = models.DateField()
    
    # Metadata
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)
    
    # Moderation
    is_published = models.BooleanField(default=True)
    moderation_notes = models.TextField(blank=True)
    moderated_by = models.ForeignKey(
        'accounts.User',
        on_delete=models.SET_NULL,
        null=True,
        blank=True,
        related_name='moderated_park_reviews'
    )
    moderated_at = models.DateTimeField(null=True, blank=True)

    class Meta:
        ordering = ['-created_at']
        unique_together = ['park', 'user']

    def __str__(self):
        return f"Review of {self.park.name} by {self.user.username}"