# Generated by Django 5.2.13 on 2026-05-14 12:56

import apps.core.storage.paths
import apps.core.storage.validators
import django.db.models.deletion
import simple_history.models
from django.conf import settings
from django.db import migrations, models


class Migration(migrations.Migration):

    dependencies = [
        ("contenttypes", "0002_remove_content_type_name"),
        ("mel_indicators", "0009_g9_validation_rule"),
        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
    ]

    operations = [
        migrations.CreateModel(
            name="HistoricalEvidenceAttachment",
            fields=[
                (
                    "id",
                    models.BigIntegerField(
                        auto_created=True, blank=True, db_index=True, verbose_name="ID"
                    ),
                ),
                ("object_id", models.PositiveIntegerField()),
                (
                    "file",
                    models.TextField(
                        max_length=100,
                        validators=[
                            apps.core.storage.validators.FileValidator(
                                allowed_categories=["document", "data", "image"], module="mel"
                            )
                        ],
                    ),
                ),
                (
                    "content_hash",
                    models.CharField(
                        db_index=True,
                        help_text="SHA-256 of the file bytes; used for de-duplication.",
                        max_length=64,
                    ),
                ),
                ("mime_type", models.CharField(blank=True, max_length=120)),
                ("caption", models.CharField(blank=True, max_length=255)),
                ("uploaded_at", models.DateTimeField(blank=True, editable=False)),
                ("history_id", models.AutoField(primary_key=True, serialize=False)),
                ("history_date", models.DateTimeField(db_index=True)),
                ("history_change_reason", models.CharField(max_length=100, null=True)),
                (
                    "history_type",
                    models.CharField(
                        choices=[("+", "Created"), ("~", "Changed"), ("-", "Deleted")], max_length=1
                    ),
                ),
                (
                    "content_type",
                    models.ForeignKey(
                        blank=True,
                        db_constraint=False,
                        null=True,
                        on_delete=django.db.models.deletion.DO_NOTHING,
                        related_name="+",
                        to="contenttypes.contenttype",
                    ),
                ),
                (
                    "history_user",
                    models.ForeignKey(
                        null=True,
                        on_delete=django.db.models.deletion.SET_NULL,
                        related_name="+",
                        to=settings.AUTH_USER_MODEL,
                    ),
                ),
                (
                    "uploaded_by",
                    models.ForeignKey(
                        blank=True,
                        db_constraint=False,
                        null=True,
                        on_delete=django.db.models.deletion.DO_NOTHING,
                        related_name="+",
                        to=settings.AUTH_USER_MODEL,
                    ),
                ),
            ],
            options={
                "verbose_name": "historical evidence attachment",
                "verbose_name_plural": "historical evidence attachments",
                "ordering": ("-history_date", "-history_id"),
                "get_latest_by": ("history_date", "history_id"),
            },
            bases=(simple_history.models.HistoricalChanges, models.Model),
        ),
        migrations.CreateModel(
            name="EvidenceAttachment",
            fields=[
                (
                    "id",
                    models.BigAutoField(
                        auto_created=True, primary_key=True, serialize=False, verbose_name="ID"
                    ),
                ),
                ("object_id", models.PositiveIntegerField()),
                (
                    "file",
                    models.FileField(
                        upload_to=apps.core.storage.paths.upload_to_mel_evidence,
                        validators=[
                            apps.core.storage.validators.FileValidator(
                                allowed_categories=["document", "data", "image"], module="mel"
                            )
                        ],
                    ),
                ),
                (
                    "content_hash",
                    models.CharField(
                        db_index=True,
                        help_text="SHA-256 of the file bytes; used for de-duplication.",
                        max_length=64,
                    ),
                ),
                ("mime_type", models.CharField(blank=True, max_length=120)),
                ("caption", models.CharField(blank=True, max_length=255)),
                ("uploaded_at", models.DateTimeField(auto_now_add=True)),
                (
                    "content_type",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.CASCADE,
                        related_name="+",
                        to="contenttypes.contenttype",
                    ),
                ),
                (
                    "uploaded_by",
                    models.ForeignKey(
                        on_delete=django.db.models.deletion.PROTECT,
                        related_name="mel_evidence_uploads",
                        to=settings.AUTH_USER_MODEL,
                    ),
                ),
            ],
            options={
                "ordering": ["-uploaded_at"],
                "indexes": [
                    models.Index(
                        fields=["content_type", "object_id"], name="mel_indicat_content_ec9809_idx"
                    )
                ],
                "constraints": [
                    models.UniqueConstraint(
                        fields=("content_type", "object_id", "content_hash"),
                        name="uniq_evidence_attachment_per_host",
                    )
                ],
            },
        ),
    ]