from django.db import models
from django.contrib.auth.models import User
from django_softdelete.models import SoftDeleteModel

class Province(SoftDeleteModel):
    code = models.CharField(max_length=2, null=False, unique=True)
    name = models.CharField(max_length=255, null=False)

    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

    def __str__(self):
        return self.name

class RegencyCity(SoftDeleteModel):
    code = models.CharField(max_length=4, null=False, unique=True)
    name = models.CharField(max_length=255, null=False)
    province = models.ForeignKey(Province, on_delete=models.CASCADE, null=False)

    def __str__(self):
        return self.name
    
    class Meta:
        unique_together = ('code', 'province')

class Location(SoftDeleteModel):
    name = models.CharField(max_length=255, null=False)

    path = models.TextField(null=True, blank=True)

    totem_latitude = models.DecimalField(max_digits=9, decimal_places=6, null=True, blank=True)
    totem_longitude = models.DecimalField(max_digits=9, decimal_places=6, null=True, blank=True)
    totem_code = models.CharField(max_length=50, null=True, blank=True)

    province = models.ForeignKey(Province, on_delete=models.SET_NULL, null=True)
    regency_city = models.ForeignKey(RegencyCity, on_delete=models.SET_NULL, null=True)
    active = models.BooleanField(default=True)

    def __str__(self):
        return f"{self.user.username} - {self.province.name if self.province else 'No Province'} - {self.regency_city.name if self.regency_city else 'No Regency/City'}"