from django.db import models
from django.utils import timezone
from django.apps import apps
import uuid

from . import ModelLog, SideStoreModel

class DataAccess(models.Model):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4)
    owner = models.ForeignKey('CustomUser', related_name='owned_data', on_delete=models.CASCADE)
    shared_with = models.ForeignKey('CustomUser', related_name='shared_data', on_delete=models.CASCADE)
    model_name = models.CharField(max_length=50)
    model_id = models.UUIDField()
    granted_at = models.DateTimeField(auto_now_add=True)

    def save(self, *args, **kwargs):
        is_new = self._state.adding  # Check if this is a new DataAccess
        super().save(*args, **kwargs)

        if is_new:
            self.create_initial_sync_logs()

    def create_initial_sync_logs(self):

        model_class = apps.get_model(self.model_name)
        obj = model_class.objects.get(id=self.model_id)
        parent_model, parent_id = obj.get_parent_reference()
        store_id = None
        if isinstance(obj, SideStoreModel):
            store_id = obj.store_id

        ModelLog.objects.create(
            user=self.shared_with,  # The user receiving access
            model_id=self.model_id,
            model_name=self.model_name,
            operation='SHARE',  # New operation type
            date=timezone.now(),
            store_id=store_id,
            parent_model_id=parent_id,
            parent_model_name=parent_model
        )