"""
Management command to create a superuser automatically from environment variables.
Used during Docker startup for Hugging Face Spaces deployment.

Required environment variables (set as Secrets in HF Space settings):
  DJANGO_SUPERUSER_USERNAME  (default: admin)
  DJANGO_SUPERUSER_EMAIL     (default: admin@example.com)
  DJANGO_SUPERUSER_PASSWORD  (required)
"""
import os
from django.core.management.base import BaseCommand
from django.contrib.auth import get_user_model


class Command(BaseCommand):
    help = 'Create a superuser from environment variables (non-interactive)'

    def handle(self, *args, **options):
        User = get_user_model()

        username = os.environ.get('DJANGO_SUPERUSER_USERNAME', 'admin')
        email    = os.environ.get('DJANGO_SUPERUSER_EMAIL', 'admin@example.com')
        password = os.environ.get('DJANGO_SUPERUSER_PASSWORD', '')

        if not password:
            self.stdout.write(self.style.WARNING(
                '⚠️  DJANGO_SUPERUSER_PASSWORD is not set. Skipping admin creation.'
            ))
            return

        if User.objects.filter(username=username).exists():
            self.stdout.write(self.style.SUCCESS(
                f'✅ Superuser "{username}" already exists. Skipping.'
            ))
            return

        User.objects.create_superuser(username=username, email=email, password=password)
        self.stdout.write(self.style.SUCCESS(
            f'✅ Superuser "{username}" created successfully.'
        ))