json import export project | UI cleaner | binding geometry to each other

src/uhm/lib/editor/draft/editorTypes.ts

@@ -4,6 +4,9 @@ import type {
     Geometry,
     GeometryChange,
 } from "@/uhm/types/geo";
+import type { EntitySnapshot } from "@/uhm/types/entities";
+import type { WikiSnapshot } from "@/uhm/types/wiki";
+import type { EntityWikiLinkSnapshot } from "@/uhm/types/sections";
 
 export type Change = GeometryChange;
 
@@ -11,5 +14,8 @@ export type UndoAction =
     | { type: "update"; id: FeatureProperties["id"]; prevGeometry: Geometry }
     | { type: "properties"; id: FeatureProperties["id"]; prevProperties: FeatureProperties }
     | { type: "delete"; feature: Feature }
-    | { type: "create"; id: FeatureProperties["id"] };
-
+    | { type: "create"; id: FeatureProperties["id"] }
+    // Snapshot-scoped undo (affects commit snapshot but not GeoJSON draft directly)
+    | { type: "snapshot_entities"; label: string; prev: EntitySnapshot[] }
+    | { type: "snapshot_wikis"; label: string; prev: WikiSnapshot[] }
+    | { type: "snapshot_entity_wiki"; label: string; prev: EntityWikiLinkSnapshot[] };

src/uhm/lib/editor/draft/useUndoStack.ts

@@ -75,6 +75,18 @@ function isSameUndo(a: UndoAction | undefined, b: UndoAction) {
                 JSON.stringify(a.prevProperties) === JSON.stringify(next.prevProperties)
             );
         }
+        case "snapshot_entities": {
+            const next = b as Extract<UndoAction, { type: "snapshot_entities" }>;
+            return a.label === next.label && JSON.stringify(a.prev) === JSON.stringify(next.prev);
+        }
+        case "snapshot_wikis": {
+            const next = b as Extract<UndoAction, { type: "snapshot_wikis" }>;
+            return a.label === next.label && JSON.stringify(a.prev) === JSON.stringify(next.prev);
+        }
+        case "snapshot_entity_wiki": {
+            const next = b as Extract<UndoAction, { type: "snapshot_entity_wiki" }>;
+            return a.label === next.label && JSON.stringify(a.prev) === JSON.stringify(next.prev);
+        }
         default:
             return false;
     }