from django.db import models
from django.core.cache import cache


class SingletonModel(models.Model):
    class Meta:
        abstract = True

    def save(self, *args, **kwargs):
        self.pk = 1
        super(SingletonModel, self).save(*args, **kwargs)

    def delete(self, *args, **kwargs):
        pass

    @classmethod
    def load(cls):
        cache_key = f"{cls._meta.model_name}_singleton_key"
        if not (data := cache.get(cache_key)):
            data = cls.objects.values().get(pk=1)
            cache.set(cache_key, data, 60 * 60 * 24)
        return cls(**data)