Fix tiptap selection sync and toolbar event loop

wolai-frontend/src/lib/documents/page-subtree-response.ts

@@ -0,0 +1,48 @@
+import {
+  type PageSubtreeProjection,
+} from "@/lib/documents/page-subtree";
+
+export type DocumentContentResponseLike = {
+  content?: unknown;
+  revision?: number | null;
+  conflict_detection_key?: string | null;
+  conflictDetectionKey?: string | null;
+  page_subtree?: PageSubtreeProjection | null;
+  pageSubtree?: PageSubtreeProjection | null;
+  title?: string | null;
+};
+
+export type NormalizedDocumentContentResponse = {
+  content: unknown;
+  revision: number;
+  conflictDetectionKey: string;
+  pageSubtree: PageSubtreeProjection | null;
+};
+
+export function normalizeDocumentContentResponse(input: {
+  documentId: string;
+  title?: string | null;
+  payload?: DocumentContentResponseLike | null;
+}): NormalizedDocumentContentResponse {
+  const payload = input.payload ?? null;
+  const content = payload?.content ?? null;
+  const revision =
+    typeof payload?.revision === "number" && Number.isInteger(payload.revision)
+      ? payload.revision
+      : 0;
+  const conflictDetectionKey = (
+    typeof payload?.conflictDetectionKey === "string" && payload.conflictDetectionKey.trim()
+      ? payload.conflictDetectionKey
+      : typeof payload?.conflict_detection_key === "string" && payload.conflict_detection_key.trim()
+        ? payload.conflict_detection_key
+        : `${input.documentId}:0`
+  );
+  const pageSubtree = payload?.pageSubtree ?? payload?.page_subtree ?? null;
+
+  return {
+    content,
+    revision,
+    conflictDetectionKey,
+    pageSubtree,
+  };
+}