feat: limit source exports to current year

docs/source-record-export-matrix-ru.md

@@ -9,6 +9,11 @@
 теле обычной HTML-формы на
 `POST /api/v2/organization-source-records/export-download/`.
 
+Имя скачиваемого архива формируется по выбранным источникам и времени создания
+запроса: `<source-stem>_YYYYMMDD_HHMMSS.zip`, а для нескольких источников их
+имена соединяются через `__`. Значение `file_name` из ticket и итоговый
+`Content-Disposition` совпадают.
+
 Браузер получает потоковый ZIP напрямую, без многогигабайтного `Blob` в
 JavaScript. Ticket не попадает в URL и после первого запроса становится
 недействительным. Совместимый администраторский endpoint
@@ -19,6 +24,13 @@ JavaScript. Ticket не попадает в URL и после первого з
 готовые файлы последнего ночного поколения. При отсутствии поколения API
 возвращает `503` с кодом `source_export_not_ready`.
 
+Каждое поколение содержит только текущий календарный год в timezone сервиса.
+Для моделей с предметной датой год определяется по ней, для моделей без такой
+даты — по `created_at`, для финансовых отчётов — по году строк отчёта. Строки
+других лет из финансового отчёта не выгружаются. После смены года старое
+поколение не раздаётся: до успешной сборки нового года API отвечает
+`503 source_export_not_ready`.
+
 ## Матрица
 
 | Группа API | Таблицы State Corp | Файл | CSV | XLSX | JSON |
@@ -39,9 +51,9 @@ JavaScript. Ticket не попадает в URL и после первого з
 используют тот же контракт, что и Mostovik: реквизиты организации, включая ОКПО,
 общие поля записи источника и специфичные поля в `payload.*`.
 
-Все записи включаются в публичные файлы, а техническое наименование внешнего
-поставщика нейтрализуется. Исходные значения в БД сохраняются для работы
-интеграции и дедупликации.
+Все записи текущего года включаются в публичные файлы, а техническое
+наименование внешнего поставщика нейтрализуется. Исходные значения в БД
+сохраняются для работы интеграции и дедупликации.
 
 Физических XLSX-файлов может быть больше: по умолчанию один файл содержит не
 более 100 000 строк данных и получает суффикс `-part-001`, `-part-002` и далее.
@@ -55,11 +67,13 @@ Celery Beat запускает
 Генератор:
 
 1. читает каждую нормализованную таблицу один раз без model-level сортировки;
+   предметные даты и fallback по `created_at` индексированы;
 2. создаёт компактный JSON-массив и переиспользует его как готовый JSON;
 3. потоково формирует CSV и write-only XLSX;
-4. атомарно публикует `current.json` только после готовности всей матрицы;
-5. при ошибке удаляет staging и продолжает отдавать предыдущее поколение;
-6. сохраняет текущее и предыдущее поколения по умолчанию.
+4. записывает календарный `export_year` в manifest;
+5. атомарно публикует `current.json` только после готовности всей матрицы;
+6. при ошибке удаляет staging и продолжает отдавать предыдущее поколение того же года;
+7. сохраняет текущее и предыдущее поколения по умолчанию.
 
 Web и Celery worker должны использовать общий read-write volume `/app/media`.
 
@@ -81,3 +95,8 @@ PYTHONPATH=src uv run python src/manage.py build_source_record_exports
 
 Для атомарной генерации требуется свободное место не меньше
 `(GENERATIONS_TO_KEEP + 1) * размер поколения` плюс запас файловой системы.
+
+На локальном снимке от 2026-08-04 поколение за 2026 год содержит 1 962 записи
+и занимает 4 738 872 байта (4,52 MiB) для всей матрицы. Архив со всеми
+источниками оценивается в 2,49 MiB для JSON, 1,59 MiB для CSV и 0,44 MiB для
+XLSX; к сумме добавляется небольшой служебный overhead ZIP.

src/apps/external_data/management/commands/build_source_record_exports.py

@@ -20,6 +20,7 @@ class Command(BaseAppCommand):
             {
                 "generation_id": generation.generation_id,
                 "generated_at": generation.generated_at,
+                "export_year": generation.export_year,
                 "artifacts_count": generation.artifacts_count,
                 "files_count": generation.files_count,
                 "records_count": generation.records_count,

src/apps/external_data/migrations/0008_export_date_indexes.py

@@ -0,0 +1,34 @@
+"""Index the remaining date fields used by current-year exports."""
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+    """Add indexes for nullable certificate and security-registry dates."""
+
+    dependencies = [
+        ("external_data", "0007_seed_nightly_source_record_exports"),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name="industrialcertificate",
+            name="issue_date",
+            field=models.DateField(
+                blank=True,
+                db_index=True,
+                null=True,
+                verbose_name="дата выдачи",
+            ),
+        ),
+        migrations.AlterField(
+            model_name="informationsecurityregistryentry",
+            name="issued_at",
+            field=models.DateField(
+                blank=True,
+                db_index=True,
+                null=True,
+                verbose_name="дата выдачи",
+            ),
+        ),
+    ]

src/apps/external_data/models.py

@@ -44,7 +44,12 @@ class IndustrialCertificate(UUIDPrimaryKeyMixin, TimestampMixin, models.Model):
     certificate_number = models.CharField(
         _("номер сертификата"), max_length=100, db_index=True
     )
-    issue_date = models.DateField(_("дата выдачи"), null=True, blank=True)
+    issue_date = models.DateField(
+        _("дата выдачи"),
+        null=True,
+        blank=True,
+        db_index=True,
+    )
     expiry_date = models.DateField(_("дата окончания"), null=True, blank=True)
     certificate_file_url = models.TextField(
         _("ссылка на файл сертификата"), blank=True, default=""
@@ -254,7 +259,12 @@ class InformationSecurityRegistryEntry(
         blank=True,
         default="",
     )
-    issued_at = models.DateField(_("дата выдачи"), null=True, blank=True)
+    issued_at = models.DateField(
+        _("дата выдачи"),
+        null=True,
+        blank=True,
+        db_index=True,
+    )
     expires_at = models.DateField(_("дата окончания"), null=True, blank=True)
 
     class Meta:

src/apps/external_data/source_record_export.py

@@ -24,6 +24,7 @@ from apps.external_data.models import (
     BankruptcyProcedure,
     DefenseUnreliableSupplier,
     FinancialReport,
+    FinancialReportLine,
     IndustrialCertificate,
     IndustrialProduct,
     InformationSecurityRegistryEntry,
@@ -34,7 +35,7 @@ from apps.external_data.models import (
 )
 from django.conf import settings
 from django.core.cache import cache
-from django.db.models import QuerySet, prefetch_related_objects
+from django.db.models import Prefetch, Q, QuerySet, prefetch_related_objects
 from django.utils import timezone
 from openpyxl import Workbook
 
@@ -43,7 +44,7 @@ EXPORT_FORMAT_XLSX = "xlsx"
 EXPORT_FORMAT_JSON = "json"
 EXPORT_FORMATS = (EXPORT_FORMAT_CSV, EXPORT_FORMAT_XLSX, EXPORT_FORMAT_JSON)
 FINANCIAL_SOURCE_GROUP = "financial_indicators"
-EXPORT_MANIFEST_VERSION = 1
+EXPORT_MANIFEST_VERSION = 2
 CURRENT_EXPORT_MANIFEST_FILE_NAME = "current.json"
 GENERATION_MANIFEST_FILE_NAME = "manifest.json"
 GENERATION_DIRECTORY_NAME = "generations"
@@ -117,6 +118,7 @@ class SourceModelExportSpec:
     payload_aliases: tuple[tuple[str, str], ...] = ()
     payload_export_fields: tuple[str, ...] | None = None
     prefetch_related: tuple[str, ...] = ()
+    export_year_lookup: str | None = None
 
 
 @dataclass(frozen=True)
@@ -153,6 +155,7 @@ SOURCE_GROUP_EXPORT_SPECS: dict[str, SourceGroupExportSpec] = {
                 status_field="status",
                 load_batch_field="load_batch",
                 prefetch_related=("lines",),
+                export_year_lookup="lines__year",
             ),
         ),
     ),
@@ -436,6 +439,7 @@ class SourceRecordExportGeneration:
 
     generation_id: str
     generated_at: str
+    export_year: int
     artifacts: tuple[SourceRecordExportArtifact, ...]
     records_count: int
 
@@ -514,6 +518,7 @@ def build_source_record_export_artifacts(
     generations_directory.mkdir(parents=True, exist_ok=True)
 
     generated_at_datetime = _normalize_generation_datetime(now or timezone.now())
+    export_year = _export_year(generated_at_datetime)
     generation_id = (
         f"{generated_at_datetime.strftime('%Y%m%dT%H%M%SZ')}-{uuid4().hex[:8]}"
     )
@@ -530,6 +535,7 @@ def build_source_record_export_artifacts(
             headers, records_count = _spool_source_group_rows(
                 source_spec=source_spec,
                 output_path=row_spool_path,
+                export_year=export_year,
             )
             source_record_counts[source_group] = records_count
 
@@ -569,6 +575,7 @@ def build_source_record_export_artifacts(
         generation = SourceRecordExportGeneration(
             generation_id=generation_id,
             generated_at=generated_at_datetime.isoformat(),
+            export_year=export_year,
             artifacts=tuple(artifacts),
             records_count=sum(source_record_counts.values()),
         )
@@ -622,6 +629,7 @@ def build_source_records_export_archive(
     source_groups: Sequence[str],
     export_format: str,
     export_directory: str | Path | None = None,
+    requested_at: datetime | None = None,
 ) -> SourceRecordExportArchive:
     """Package selected prepared files without querying external-data tables."""
 
@@ -629,6 +637,13 @@ def build_source_records_export_archive(
     generation = load_current_source_record_export_generation(
         export_directory=root_directory,
     )
+    requested_at_datetime = _normalize_generation_datetime(
+        requested_at or timezone.now()
+    )
+    if generation.export_year != _export_year(requested_at_datetime):
+        raise SourceRecordExportArtifactsUnavailable(
+            "Prepared source-record export belongs to a different calendar year."
+        )
     artifacts_by_key: dict[
         tuple[str, str],
         list[SourceRecordExportArtifact],
@@ -654,10 +669,11 @@ def build_source_records_export_archive(
             sorted(artifacts, key=lambda artifact: artifact.part_number)
         )
 
-    generated_at = datetime.fromisoformat(generation.generated_at)
-    timestamp = generated_at.strftime("%Y%m%d_%H%M%S")
     return SourceRecordExportArchive(
-        archive_name=f"organization_source_records_export_{timestamp}.zip",
+        archive_name=_build_source_records_archive_name(
+            source_groups=source_groups,
+            requested_at=requested_at_datetime,
+        ),
         archive_chunks=_stream_zip_archive(selected_artifacts),
         files_count=len(selected_artifacts),
         generated_at=generation.generated_at,
@@ -671,9 +687,11 @@ def create_source_record_export_download_ticket(
 ) -> SourceRecordExportDownloadTicket:
     """Validate prepared files and cache a short-lived download capability."""
 
+    requested_at = _normalize_generation_datetime(timezone.now())
     package = build_source_records_export_archive(
         source_groups=source_groups,
         export_format=export_format,
+        requested_at=requested_at,
     )
     expires_in = max(
         1,
@@ -685,7 +703,11 @@ def create_source_record_export_download_ticket(
             )
         ),
     )
-    payload = {"sources": list(source_groups), "format": export_format}
+    payload = {
+        "sources": list(source_groups),
+        "format": export_format,
+        "requested_at": requested_at.isoformat(),
+    }
     for _attempt in range(3):
         ticket = secrets.token_urlsafe(32)
         if cache.add(
@@ -718,6 +740,7 @@ def consume_source_record_export_download_ticket(
     try:
         source_groups = payload["sources"]
         export_format = payload["format"]
+        requested_at_value = payload["requested_at"]
         if (
             not isinstance(source_groups, list)
             or not source_groups
@@ -728,14 +751,19 @@ def consume_source_record_export_download_ticket(
             )
             or len(source_groups) != len(set(source_groups))
             or export_format not in EXPORT_FORMATS
+            or not isinstance(requested_at_value, str)
         ):
             raise ValueError
+        requested_at = datetime.fromisoformat(requested_at_value)
+        if timezone.is_naive(requested_at):
+            raise ValueError
     except (KeyError, TypeError, ValueError):
         raise SourceRecordExportTicketInvalid from None
 
     return build_source_records_export_archive(
         source_groups=source_groups,
         export_format=export_format,
+        requested_at=requested_at,
     )
 
 
@@ -788,6 +816,24 @@ def _normalize_generation_datetime(value: datetime) -> datetime:
     return value.astimezone(UTC)
 
 
+def _export_year(value: datetime) -> int:
+    """Return the calendar year in the configured service timezone."""
+    return timezone.localtime(value).year
+
+
+def _build_source_records_archive_name(
+    *,
+    source_groups: Sequence[str],
+    requested_at: datetime,
+) -> str:
+    source_name = "__".join(
+        SOURCE_GROUP_EXPORT_SPECS[source_group].file_stem
+        for source_group in source_groups
+    )
+    timestamp = timezone.localtime(requested_at).strftime("%Y%m%d_%H%M%S")
+    return f"{source_name}_{timestamp}.zip"
+
+
 def _source_group_export_formats(source_group: str) -> tuple[str, ...]:
     if source_group == FINANCIAL_SOURCE_GROUP:
         return (EXPORT_FORMAT_JSON,)
@@ -808,25 +854,59 @@ def _build_source_group_file_name(*, source_group: str, file_format: str) -> str
     return f"{SOURCE_GROUP_EXPORT_SPECS[source_group].file_stem}.{file_format}"
 
 
-def _source_model_queryset(model_spec: SourceModelExportSpec) -> QuerySet:
-    return cast(
+def _source_model_queryset(
+    model_spec: SourceModelExportSpec,
+    *,
+    export_year: int,
+) -> QuerySet:
+    queryset = cast(
         QuerySet,
         model_spec.model.objects.select_related("organization").order_by(),
     )
+    if model_spec.export_year_lookup:
+        return queryset.filter(
+            **{model_spec.export_year_lookup: export_year}
+        ).distinct()
+    if model_spec.record_date_field:
+        return queryset.filter(
+            Q(**{f"{model_spec.record_date_field}__year": export_year})
+            | Q(
+                **{
+                    f"{model_spec.record_date_field}__isnull": True,
+                    "created_at__year": export_year,
+                }
+            )
+        )
+    return queryset.filter(created_at__year=export_year)
 
 
 def _iter_source_model_records(
     model_spec: SourceModelExportSpec,
+    *,
+    export_year: int,
 ) -> Iterator[Any]:
-    iterator = _source_model_queryset(model_spec).iterator(
-        chunk_size=SOURCE_RECORD_EXPORT_ITERATOR_CHUNK_SIZE
-    )
+    iterator = _source_model_queryset(
+        model_spec,
+        export_year=export_year,
+    ).iterator(chunk_size=SOURCE_RECORD_EXPORT_ITERATOR_CHUNK_SIZE)
     while True:
         batch = list(islice(iterator, SOURCE_RECORD_EXPORT_ITERATOR_CHUNK_SIZE))
         if not batch:
             return
         if model_spec.prefetch_related:
-            prefetch_related_objects(batch, *model_spec.prefetch_related)
+            prefetches = [
+                Prefetch(
+                    related_name,
+                    queryset=FinancialReportLine.objects.filter(
+                        year=export_year
+                    ).order_by(),
+                )
+                if related_name == "lines"
+                and model_spec.export_year_lookup == "lines__year"
+                else related_name
+                for related_name in model_spec.prefetch_related
+            ]
+            prefetch_related_objects(batch, *prefetches)
         yield from batch
 
 
@@ -851,13 +931,17 @@ def _spool_source_group_rows(
     *,
     source_spec: SourceGroupExportSpec,
     output_path: Path,
+    export_year: int,
 ) -> tuple[list[str], int]:
     records_count = 0
     with output_path.open("w", encoding="utf-8", newline="") as output:
         output.write("[")
         is_first_row = True
         for model_spec in source_spec.models:
-            for record in _iter_source_model_records(model_spec):
+            for record in _iter_source_model_records(
+                model_spec,
+                export_year=export_year,
+            ):
                 row = _build_record_row(
                     record,
                     source_spec=source_spec,
@@ -1149,6 +1233,7 @@ def _generation_manifest_payload(
         "version": EXPORT_MANIFEST_VERSION,
         "generation_id": generation.generation_id,
         "generated_at": generation.generated_at,
+        "export_year": generation.export_year,
         "records_count": generation.records_count,
         "artifacts_count": generation.artifacts_count,
         "files_count": generation.files_count,
@@ -1180,6 +1265,9 @@ def _generation_from_manifest(
         generation_id = str(payload["generation_id"])
         generated_at = str(payload["generated_at"])
         datetime.fromisoformat(generated_at)
+        export_year = int(payload["export_year"])
+        if not 1 <= export_year <= 9999:
+            raise ValueError("Source-record export year is invalid.")
         records_count = int(payload["records_count"])
         artifact_payloads = payload["artifacts"]
         if not isinstance(artifact_payloads, list):
@@ -1234,6 +1322,7 @@ def _generation_from_manifest(
     return SourceRecordExportGeneration(
         generation_id=generation_id,
         generated_at=generated_at,
+        export_year=export_year,
         artifacts=tuple(artifacts),
         records_count=records_count,
     )

src/apps/external_data/tasks.py

@@ -35,6 +35,7 @@ def refresh_source_record_export_artifacts(self) -> dict:  # noqa: ARG001
             "status": "success",
             "generation_id": generation.generation_id,
             "generated_at": generation.generated_at,
+            "export_year": generation.export_year,
             "artifacts_count": generation.artifacts_count,
             "files_count": generation.files_count,
             "records_count": generation.records_count,

tests/apps/external_data/test_export_tasks.py

@@ -8,6 +8,7 @@ from django.apps import apps as django_apps
 from django.conf import settings
 from django.core.cache import cache
 from django.test import TestCase, override_settings
+from django.utils import timezone
 from django_celery_beat.models import PeriodicTask
 
 
@@ -36,6 +37,7 @@ class SourceRecordExportArtifactsTaskTest(TestCase):
 
         self.assertEqual(result["status"], "success")
         self.assertEqual(result["artifacts_count"], 25)
+        self.assertEqual(result["export_year"], timezone.localdate().year)
         self.assertIsNone(cache.get(settings.SOURCE_RECORD_EXPORT_LOCK_KEY))
 
     def test_refresh_task_skips_when_generation_lock_is_held(self):

tests/apps/external_data/test_source_record_export.py

@@ -2,19 +2,24 @@
 
 import json
 import zipfile
+from datetime import UTC, datetime
 from io import BytesIO, StringIO
 from tempfile import TemporaryDirectory
+from unittest.mock import patch
 
 from apps.external_data.source_record_export import (
     ORGANIZATION_EXPORT_FIELDS,
     SOURCE_GROUP_EXPORT_SPECS,
     SOURCE_RECORD_EXPORT_FIELDS,
+    SourceRecordExportArtifactsUnavailable,
     _source_group_headers,
     build_source_record_export_artifacts,
+    build_source_records_export_archive,
     load_current_source_record_export_generation,
 )
 from django.core.management import call_command
 from django.test import override_settings
+from django.utils import timezone
 from openpyxl import load_workbook
 from rest_framework import status
 from rest_framework.test import APITestCase
@@ -28,6 +33,7 @@ from tests.apps.external_data.factories import (
     IndustrialProductFactory,
     ManufacturerRegistryEntryFactory,
     ProsecutorCheckFactory,
+    PublicProcurementFactory,
 )
 from tests.apps.organization.factories import OrganizationFactory
 from tests.apps.user.factories import UserFactory
@@ -71,23 +77,38 @@ class SourceRecordExportApiTest(APITestCase):
         self.assertEqual(response["Retry-After"], "3600")
 
     def test_generation_builds_full_matrix_from_normalized_tables(self):
+        current_date = timezone.localdate()
         organization = OrganizationFactory.create(
             full_name='Акционерное общество "Экспорт"',
             okpo="12345678",
         )
         IndustrialProductFactory.create(organization=organization)
-        IndustrialCertificateFactory.create(organization=organization)
+        IndustrialCertificateFactory.create(
+            organization=organization,
+            issue_date=current_date,
+        )
         ManufacturerRegistryEntryFactory.create(organization=organization)
-        ProsecutorCheckFactory.create(organization=organization)
-        arbitration_case = ArbitrationCaseFactory.create(organization=organization)
+        ProsecutorCheckFactory.create(
+            organization=organization,
+            start_date=current_date,
+        )
+        arbitration_case = ArbitrationCaseFactory.create(
+            organization=organization,
+            decision_date=current_date,
+        )
         report = FinancialReportFactory.create(organization=organization)
-        FinancialReportLineFactory.create(report=report, line_code="1600")
+        FinancialReportLineFactory.create(
+            report=report,
+            line_code="1600",
+            year=current_date.year,
+        )
 
         generation = build_source_record_export_artifacts()
 
         self.assertEqual(generation.artifacts_count, 25)
         self.assertEqual(generation.files_count, 25)
         self.assertEqual(generation.records_count, 6)
+        self.assertEqual(generation.export_year, current_date.year)
         expected_prefix = [*ORGANIZATION_EXPORT_FIELDS, *SOURCE_RECORD_EXPORT_FIELDS]
         for source_spec in SOURCE_GROUP_EXPORT_SPECS.values():
             self.assertEqual(
@@ -229,14 +250,104 @@ class SourceRecordExportApiTest(APITestCase):
 
         generation = load_current_source_record_export_generation()
         self.assertEqual(generation.artifacts_count, 25)
+        self.assertEqual(generation.export_year, timezone.localdate().year)
         self.assertIn('"artifacts_count": 25', command_output.getvalue())
 
+    def test_generation_contains_only_records_from_its_calendar_year(self):
+        export_year = 2026
+        generated_at = datetime(export_year, 8, 4, 6, 0, tzinfo=UTC)
+        organization = OrganizationFactory.create()
+        current_procurement = PublicProcurementFactory.create(
+            organization=organization,
+            contract_date=datetime(2026, 3, 1, tzinfo=UTC).date(),
+        )
+        PublicProcurementFactory.create(
+            organization=organization,
+            contract_date=datetime(2025, 3, 1, tzinfo=UTC).date(),
+        )
+        current_product = IndustrialProductFactory.create(organization=organization)
+        old_product = IndustrialProductFactory.create(organization=organization)
+        current_product.__class__.objects.filter(pk=current_product.pk).update(
+            created_at=generated_at
+        )
+        old_product.__class__.objects.filter(pk=old_product.pk).update(
+            created_at=datetime(2025, 8, 4, 6, 0, tzinfo=UTC)
+        )
+
+        current_report = FinancialReportFactory.create(organization=organization)
+        old_report = FinancialReportFactory.create(organization=organization)
+        FinancialReportLineFactory.create(report=current_report, year=2025)
+        FinancialReportLineFactory.create(
+            report=current_report,
+            year=export_year,
+            line_code="1601",
+        )
+        FinancialReportLineFactory.create(report=old_report, year=2025)
+
+        generation = build_source_record_export_artifacts(now=generated_at)
+
+        self.assertEqual(generation.export_year, export_year)
+        procurements_path = next(
+            artifact.path
+            for artifact in generation.artifacts
+            if artifact.source_group == "government_procurements"
+            and artifact.file_format == "json"
+        )
+        procurement_rows = json.loads(procurements_path.read_text(encoding="utf-8"))
+        self.assertEqual(
+            [row["uid"] for row in procurement_rows],
+            [str(current_procurement.pk)],
+        )
+
+        industrial_path = next(
+            artifact.path
+            for artifact in generation.artifacts
+            if artifact.source_group == "industrial_production"
+            and artifact.file_format == "json"
+        )
+        industrial_rows = json.loads(industrial_path.read_text(encoding="utf-8"))
+        self.assertEqual(
+            [row["uid"] for row in industrial_rows],
+            [str(current_product.pk)],
+        )
+
+        financial_path = next(
+            artifact.path
+            for artifact in generation.artifacts
+            if artifact.source_group == "financial_indicators"
+        )
+        financial_rows = json.loads(financial_path.read_text(encoding="utf-8"))
+        self.assertEqual(
+            [row["uid"] for row in financial_rows],
+            [str(current_report.pk)],
+        )
+        self.assertEqual(
+            {line["year"] for line in financial_rows[0]["financial_lines"]},
+            {export_year},
+        )
+
+    def test_new_calendar_year_requires_a_new_prepared_generation(self):
+        build_source_record_export_artifacts(
+            now=datetime(2026, 12, 31, 23, 59, tzinfo=UTC)
+        )
+
+        with self.assertRaises(SourceRecordExportArtifactsUnavailable):
+            build_source_records_export_archive(
+                source_groups=["planned_inspections"],
+                export_format="json",
+                requested_at=datetime(2027, 1, 1, tzinfo=UTC),
+            )
+
     def test_admin_streams_selected_prepared_files_without_database_queries(self):
         self.client.force_authenticate(UserFactory.create_superuser())
         organization = OrganizationFactory.create(okpo="87654321")
-        ProsecutorCheckFactory.create(organization=organization)
+        current_date = timezone.localdate()
+        ProsecutorCheckFactory.create(
+            organization=organization,
+            start_date=current_date,
+        )
         report = FinancialReportFactory.create(organization=organization)
-        FinancialReportLineFactory.create(report=report)
+        FinancialReportLineFactory.create(report=report, year=current_date.year)
         generation = build_source_record_export_artifacts()
 
         with self.assertNumQueries(0):
@@ -274,7 +385,8 @@ class SourceRecordExportApiTest(APITestCase):
             self.assertEqual(rows[1][4], "87654321")
 
     def test_ticket_is_admin_only_and_can_be_consumed_once_without_auth(self):
-        build_source_record_export_artifacts()
+        requested_at = datetime(2026, 8, 4, 12, 34, 56, tzinfo=UTC)
+        build_source_record_export_artifacts(now=requested_at)
         regular_user = UserFactory.create_user()
         self.client.force_authenticate(regular_user)
         forbidden_response = self.client.post(
@@ -285,7 +397,13 @@ class SourceRecordExportApiTest(APITestCase):
         self.assertEqual(forbidden_response.status_code, status.HTTP_403_FORBIDDEN)
 
         self.client.force_authenticate(UserFactory.create_superuser())
-        with self.assertNumQueries(0):
+        with (
+            patch(
+                "apps.external_data.source_record_export.timezone.now",
+                return_value=requested_at,
+            ),
+            self.assertNumQueries(0),
+        ):
             ticket_response = self.client.post(
                 self.ticket_url,
                 {"sources": ["bankruptcy"], "format": "json"},
@@ -294,6 +412,10 @@ class SourceRecordExportApiTest(APITestCase):
         self.assertEqual(ticket_response.status_code, status.HTTP_201_CREATED)
         self.assertRegex(ticket_response.data["ticket"], r"^[A-Za-z0-9_-]{43}$")
         self.assertEqual(ticket_response.data["expires_in"], 300)
+        self.assertEqual(
+            ticket_response.data["file_name"],
+            "bankruptcy-procedures_20260804_123456.zip",
+        )
 
         self.client.force_authenticate(user=None)
         with self.assertNumQueries(0):
@@ -303,6 +425,10 @@ class SourceRecordExportApiTest(APITestCase):
                 format="multipart",
             )
         self.assertEqual(download_response.status_code, status.HTTP_200_OK)
+        self.assertEqual(
+            download_response["Content-Disposition"],
+            'attachment; filename="bankruptcy-procedures_20260804_123456.zip"',
+        )
         with zipfile.ZipFile(
             BytesIO(self._response_body(download_response))
         ) as archive:
@@ -319,7 +445,11 @@ class SourceRecordExportApiTest(APITestCase):
     @override_settings(SOURCE_RECORD_EXPORT_XLSX_ROWS_PER_FILE=2)
     def test_xlsx_is_split_into_bounded_workbook_parts(self):
         organization = OrganizationFactory.create()
-        ProsecutorCheckFactory.create_batch(3, organization=organization)
+        ProsecutorCheckFactory.create_batch(
+            3,
+            organization=organization,
+            start_date=timezone.localdate(),
+        )
 
         generation = build_source_record_export_artifacts()