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


class AgentSettings(models.Model):
    # Fixed Settings
    system_prompt = models.TextField(default="You are a helpful assistant.")
    model_id = models.CharField(max_length=50, default="deepseek/deepseek-r1")
    temperature = models.FloatField(default=0.3)
    
    # Switches
    is_maintenance_mode = models.BooleanField(default=False)

    class Meta:
        verbose_name = "Agent Configuration"
        verbose_name_plural = "Agent Configuration"

    def save(self, *args, **kwargs):
        self.pk = 1
        super().save(*args, **kwargs)
        
        # Clear cache whenever you save
        cache.delete("agent_config_1")

    def __str__(self):
        return "Global Agent Settings"

    @classmethod
    def load(cls):
        """Helper to get the singleton instance, creating it if missing."""
        obj, created = cls.objects.get_or_create(pk=1)
        return obj