# Generated by Django 5.2.13 on 2026-04-23 16:49

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


class Migration(migrations.Migration):

    dependencies = [
        ("rims_grants", "0024_finalfinancialreport_queries_and_more"),
        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
    ]

    operations = [
        migrations.CreateModel(
            name="FundingRecordBudgetRevision",
            fields=[
                (
                    "id",
                    models.BigAutoField(
                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
                    ),
                ),
                ("revision_number", models.PositiveSmallIntegerField(default=1)),
                (
                    "status",
                    django_fsm.FSMField(
                        choices=[
                            ("requested", "Requested"),
                            ("approved", "Approved"),
                            ("rejected", "Rejected"),
                        ],
                        db_index=True,
                        default="requested",
                        max_length=16,
                        protected=True,
                    ),
                ),
                ("change_summary", models.TextField()),
                ("justification", models.TextField(blank=True)),
                ("previous_terms", models.JSONField(blank=True, default=dict)),
                ("new_terms", models.JSONField(blank=True, default=dict)),
                ("rejection_reason", models.TextField(blank=True)),
                ("created_at", models.DateTimeField(auto_now_add=True)),
                ("decided_at", models.DateTimeField(blank=True, null=True)),
                (
                    "approver",
                    models.ForeignKey(
                        blank=True,
                        null=True,
                        on_delete=django.db.models.deletion.SET_NULL,
                        related_name="funding_revisions_approved",
                        to=settings.AUTH_USER_MODEL,
                    ),
                ),
                (
                    "funding_record",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="budget_revisions",
                        to="rims_grants.fundingrecord",
                    ),
                ),
                (
                    "requested_by",
                    models.ForeignKey(
                        blank=True,
                        null=True,
                        on_delete=django.db.models.deletion.SET_NULL,
                        related_name="funding_revisions_requested",
                        to=settings.AUTH_USER_MODEL,
                    ),
                ),
            ],
            options={
                "ordering": ["-revision_number", "-pk"],
                "constraints": [
                    models.UniqueConstraint(
                        fields=("funding_record", "revision_number"),
                        name="uniq_fr_budget_revision_number",
                    )
                ],
            },
        ),
    ]