import django.db.models.deletion
from django.conf import settings
from django.db import migrations, models


class Migration(migrations.Migration):
    dependencies = [
        ("communications", "0042_chatusersettings_notification_preferences"),
        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
    ]

    operations = [
        migrations.CreateModel(
            name="ActiveChatSession",
            fields=[
                (
                    "id",
                    models.BigAutoField(
                        auto_created=True,
                        primary_key=True,
                        serialize=False,
                        verbose_name="ID",
                    ),
                ),
                ("connection_id", models.CharField(max_length=255, unique=True)),
                ("last_seen_at", models.DateTimeField(auto_now=True)),
                ("expires_at", models.DateTimeField(db_index=True)),
                (
                    "chat",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="active_sessions",
                        to="communications.chat",
                    ),
                ),
                (
                    "user",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="active_chat_sessions",
                        to=settings.AUTH_USER_MODEL,
                    ),
                ),
            ],
        ),
        migrations.AddIndex(
            model_name="activechatsession",
            index=models.Index(
                fields=["user", "chat", "expires_at"],
                name="communicati_user_id_412dae_idx",
            ),
        ),
    ]