Release v0.1.5

src/govoplan_files/backend/manifest.py

@@ -2,6 +2,7 @@ from __future__ import annotations
 
 from pathlib import Path
 
+from govoplan_core.core.module_guards import drop_table_retirement_provider, persistent_table_uninstall_guard
 from govoplan_core.core.modules import FrontendModule, MigrationSpec, ModuleContext, ModuleManifest, NavItem, PermissionDefinition, RoleTemplate
 from govoplan_core.db.base import Base
 from govoplan_files.backend.db import models as file_models  # noqa: F401 - populate Files ORM metadata
@@ -54,10 +55,30 @@ ROLE_TEMPLATES = (
 )
 
 
+def _tenant_summary(session, tenant_id: str) -> dict[str, int]:
+    from govoplan_files.backend.db.models import FileAsset
+
+    return {"files": session.query(FileAsset).filter(FileAsset.tenant_id == tenant_id).count()}
+
+
+def _veto_group_delete(session, tenant_id: str, group_id: str) -> None:
+    from govoplan_files.backend.db.models import FileAsset, FileFolder, FileShare
+
+    owned_asset_count = session.query(FileAsset).filter(FileAsset.tenant_id == tenant_id, FileAsset.owner_group_id == group_id).count()
+    owned_folder_count = session.query(FileFolder).filter(FileFolder.tenant_id == tenant_id, FileFolder.owner_group_id == group_id).count()
+    shared_asset_count = session.query(FileShare).filter(
+        FileShare.tenant_id == tenant_id,
+        FileShare.target_type == "group",
+        FileShare.target_id == group_id,
+    ).count()
+    if owned_asset_count or owned_folder_count or shared_asset_count:
+        raise ValueError("Cannot remove the group while it owns files, folders or file shares.")
+
+
 def _files_router(context: ModuleContext):
     from govoplan_files.backend.runtime import configure_runtime
 
-    configure_runtime(settings=context.settings)
+    configure_runtime(registry=context.registry, settings=context.settings)
     from govoplan_files.backend.router import router
 
     return router
@@ -66,12 +87,14 @@ def _files_router(context: ModuleContext):
 manifest = ModuleManifest(
     id="files",
     name="Files",
-    version="0.1.4",
+    version="0.1.5",
     dependencies=("access",),
     optional_dependencies=(),
     permissions=PERMISSIONS,
     route_factory=_files_router,
     role_templates=ROLE_TEMPLATES,
+    tenant_summary_providers=(_tenant_summary,),
+    delete_veto_providers={"group": (_veto_group_delete,)},
     nav_items=(NavItem(path="/files", label="Files", icon="folder", required_any=("files:file:read",), order=40),),
     frontend=FrontendModule(
         module_id="files",
@@ -82,6 +105,28 @@ manifest = ModuleManifest(
         module_id="files",
         metadata=Base.metadata,
         script_location=str(Path(__file__).with_name("migrations") / "versions"),
+        retirement_supported=True,
+        retirement_provider=drop_table_retirement_provider(
+            file_models.FileBlob,
+            file_models.FileFolder,
+            file_models.FileAsset,
+            file_models.FileVersion,
+            file_models.FileShare,
+            file_models.CampaignAttachmentUse,
+            label="Files",
+        ),
+        retirement_notes="Destructive retirement drops files-owned database tables after the installer captures a database snapshot.",
+    ),
+    uninstall_guard_providers=(
+        persistent_table_uninstall_guard(
+            file_models.FileBlob,
+            file_models.FileFolder,
+            file_models.FileAsset,
+            file_models.FileVersion,
+            file_models.FileShare,
+            file_models.CampaignAttachmentUse,
+            label="Files",
+        ),
     ),
     capability_factories={
         "files.campaign_attachments": lambda context: __import__("govoplan_files.backend.capabilities", fromlist=["campaign_capability"]).campaign_capability(context),