# Generated by Django 5.2.13 on 2026-05-18 04:43

import apps.core.storage.paths
import django.db.models.deletion
import django.utils.timezone
from django.db import migrations, models


class Migration(migrations.Migration):

    dependencies = [
        ("rims_grants", "0040_phase3_app_reviewer_integrity"),
    ]

    operations = [
        migrations.CreateModel(
            name="AwardLetterVersion",
            fields=[
                (
                    "id",
                    models.BigAutoField(
                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
                    ),
                ),
                ("version_number", models.PositiveSmallIntegerField()),
                ("file", models.FileField(upload_to=apps.core.storage.paths.upload_to_grants)),
                ("generated_at", models.DateTimeField(default=django.utils.timezone.now)),
                (
                    "award",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="letter_versions",
                        to="rims_grants.award",
                    ),
                ),
                (
                    "triggering_amendment",
                    models.ForeignKey(
                        blank=True,
                        null=True,
                        on_delete=django.db.models.deletion.SET_NULL,
                        related_name="letter_versions_triggered",
                        to="rims_grants.awardamendment",
                    ),
                ),
            ],
            options={
                "ordering": ["-version_number"],
                "constraints": [
                    models.UniqueConstraint(
                        fields=("award", "version_number"), name="uniq_award_letter_version_number"
                    )
                ],
            },
        ),
    ]