# 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')},
            },
        ),
    ]