# Generated by Django 5.2.4 on 2025-08-19 06:32

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


class Migration(migrations.Migration):
    dependencies = [
        ("communications", "0003_alter_chat_department_alter_chat_participants"),
        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
    ]

    operations = [
        migrations.CreateModel(
            name="ChatReadState",
            fields=[
                (
                    "id",
                    models.BigAutoField(
                        auto_created=True,
                        primary_key=True,
                        serialize=False,
                        verbose_name="ID",
                    ),
                ),
                ("last_read_at", models.DateTimeField(blank=True, null=True)),
                ("updated_at", models.DateTimeField(auto_now=True)),
                (
                    "chat",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="read_states",
                        to="communications.chat",
                    ),
                ),
                (
                    "user",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="chat_read_states",
                        to=settings.AUTH_USER_MODEL,
                    ),
                ),
            ],
            options={
                "indexes": [
                    models.Index(
                        fields=["chat", "user"], name="communicati_chat_id_ac306b_idx"
                    ),
                    models.Index(
                        fields=["chat", "last_read_at"],
                        name="communicati_chat_id_edefdb_idx",
                    ),
                ],
                "unique_together": {("chat", "user")},
            },
        ),
    ]