# Generated by Django 5.0.10 on 2025-12-10 19:21

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


class Migration(migrations.Migration):

    dependencies = [
        ('inventory', '0009_fix_showcase_items_status'),
        ('products', '0010_alter_product_cost_price'),
        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
    ]

    operations = [
        migrations.AlterField(
            model_name='documentcounter',
            name='counter_type',
            field=models.CharField(choices=[('transfer', 'Перемещение товара'), ('writeoff', 'Списание товара')], max_length=20, unique=True, verbose_name='Тип счетчика'),
        ),
        migrations.CreateModel(
            name='WriteOffDocument',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('document_number', models.CharField(db_index=True, max_length=100, unique=True, verbose_name='Номер документа')),
                ('status', models.CharField(choices=[('draft', 'Черновик'), ('confirmed', 'Проведён'), ('cancelled', 'Отменён')], db_index=True, default='draft', max_length=20, verbose_name='Статус')),
                ('date', models.DateField(help_text='Дата, к которой относится списание', verbose_name='Дата документа')),
                ('notes', models.TextField(blank=True, null=True, verbose_name='Примечания')),
                ('confirmed_at', models.DateTimeField(blank=True, null=True, verbose_name='Дата проведения')),
                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='Создан')),
                ('updated_at', models.DateTimeField(auto_now=True, verbose_name='Обновлён')),
                ('confirmed_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='confirmed_writeoff_documents', to=settings.AUTH_USER_MODEL, verbose_name='Провёл')),
                ('created_by', models.ForeignKey(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='created_writeoff_documents', to=settings.AUTH_USER_MODEL, verbose_name='Создал')),
                ('warehouse', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='writeoff_documents', to='inventory.warehouse', verbose_name='Склад')),
            ],
            options={
                'verbose_name': 'Документ списания',
                'verbose_name_plural': 'Документы списания',
                'ordering': ['-date', '-created_at'],
            },
        ),
        migrations.CreateModel(
            name='WriteOffDocumentItem',
            fields=[
                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
                ('quantity', models.DecimalField(decimal_places=3, max_digits=10, verbose_name='Количество')),
                ('reason', models.CharField(choices=[('damage', 'Повреждение'), ('spoilage', 'Порча'), ('shortage', 'Недостача'), ('inventory', 'Инвентаризационная недостача'), ('other', 'Другое')], default='damage', max_length=20, verbose_name='Причина списания')),
                ('notes', models.TextField(blank=True, null=True, verbose_name='Примечания')),
                ('created_at', models.DateTimeField(auto_now_add=True)),
                ('updated_at', models.DateTimeField(auto_now=True)),
                ('document', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='items', to='inventory.writeoffdocument', verbose_name='Документ')),
                ('product', models.ForeignKey(on_delete=django.db.models.deletion.PROTECT, related_name='writeoff_document_items', to='products.product', verbose_name='Товар')),
                ('reservation', models.OneToOneField(blank=True, null=True, on_delete=django.db.models.deletion.SET_NULL, related_name='writeoff_document_item_reverse', to='inventory.reservation', verbose_name='Резерв')),
            ],
            options={
                'verbose_name': 'Позиция документа списания',
                'verbose_name_plural': 'Позиции документа списания',
                'ordering': ['id'],
            },
        ),
        migrations.AddField(
            model_name='reservation',
            name='writeoff_document_item',
            field=models.ForeignKey(blank=True, help_text='Резерв для документа списания (черновик)', null=True, on_delete=django.db.models.deletion.CASCADE, related_name='reservations', to='inventory.writeoffdocumentitem', verbose_name='Позиция документа списания'),
        ),
        migrations.AddIndex(
            model_name='writeoffdocument',
            index=models.Index(fields=['document_number'], name='inventory_w_documen_a9ae00_idx'),
        ),
        migrations.AddIndex(
            model_name='writeoffdocument',
            index=models.Index(fields=['warehouse', 'status'], name='inventory_w_warehou_69fbf6_idx'),
        ),
        migrations.AddIndex(
            model_name='writeoffdocument',
            index=models.Index(fields=['date'], name='inventory_w_date_a853cb_idx'),
        ),
        migrations.AddIndex(
            model_name='writeoffdocument',
            index=models.Index(fields=['-created_at'], name='inventory_w_created_02c298_idx'),
        ),
        migrations.AddIndex(
            model_name='writeoffdocumentitem',
            index=models.Index(fields=['document'], name='inventory_w_documen_d77c5e_idx'),
        ),
        migrations.AddIndex(
            model_name='writeoffdocumentitem',
            index=models.Index(fields=['product'], name='inventory_w_product_6e32fc_idx'),
        ),
    ]