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


class Migration(migrations.Migration):

    initial = True

    dependencies = [
        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
    ]

    operations = [
        migrations.CreateModel(
            name='ChatConversation',
            fields=[
                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
                ('initiator_distributor_code', models.CharField(db_index=True, max_length=50)),
                ('recipient_distributor_code', models.CharField(db_index=True, max_length=50)),
                ('is_active', models.BooleanField(default=True)),
                ('created_at', models.DateTimeField(auto_now_add=True)),
                ('updated_at', models.DateTimeField(auto_now=True)),
                ('initiator', models.ForeignKey(
                    on_delete=django.db.models.deletion.CASCADE,
                    related_name='initiated_conversations',
                    to=settings.AUTH_USER_MODEL,
                )),
                ('recipient', models.ForeignKey(
                    on_delete=django.db.models.deletion.CASCADE,
                    related_name='received_conversations',
                    to=settings.AUTH_USER_MODEL,
                )),
            ],
            options={
                'verbose_name': 'Chat Conversation',
                'verbose_name_plural': 'Chat Conversations',
                'ordering': ['-updated_at'],
            },
        ),
        migrations.AddConstraint(
            model_name='chatconversation',
            constraint=models.UniqueConstraint(
                fields=['initiator_distributor_code', 'recipient_distributor_code'],
                name='unique_conversation_pair',
            ),
        ),
        migrations.CreateModel(
            name='ChatMessage',
            fields=[
                ('id', models.UUIDField(default=uuid.uuid4, editable=False, primary_key=True, serialize=False)),
                ('sender_distributor_code', models.CharField(max_length=50)),
                ('body', models.TextField(max_length=2000)),
                ('is_read', models.BooleanField(default=False)),
                ('created_at', models.DateTimeField(auto_now_add=True)),
                ('conversation', models.ForeignKey(
                    on_delete=django.db.models.deletion.CASCADE,
                    related_name='messages',
                    to='network_chat.chatconversation',
                )),
                ('sender', models.ForeignKey(
                    on_delete=django.db.models.deletion.CASCADE,
                    related_name='sent_chat_messages',
                    to=settings.AUTH_USER_MODEL,
                )),
            ],
            options={
                'verbose_name': 'Chat Message',
                'verbose_name_plural': 'Chat Messages',
                'ordering': ['created_at'],
            },
        ),
    ]