WIP

apps/client/src/features/page-history/components/history-editor.tsx

@@ -7,7 +7,8 @@ import { Decoration, DecorationSet } from "@tiptap/pm/view";
 import { computeHistoryBlockDiff } from "@/features/page-history/utils/history-diff";
 import classes from "./history-diff.module.css";
 import historyClasses from "./history.module.css";
-
+import { recreateTransform } from "@docmost/editor-ext";
+import { Node, Schema, DOMSerializer } from "@tiptap/pm/model";
 
 export interface HistoryEditorProps {
   title: string;
@@ -33,6 +34,37 @@ export function HistoryEditor({
     deleted: 0,
   });
 
+  useEffect(() => {
+    if (editor && previousContent && content) {
+      const schema = editor.schema;
+
+      try {
+        console.log(
+          "previousContent type:",
+          previousContent?.type,
+          "content type:",
+          content?.type,
+        );
+        const docOld = Node.fromJSON(schema, previousContent);
+        const docNew = Node.fromJSON(schema, content);
+
+        const t0 = performance.now();
+        const transform = recreateTransform(docOld, docNew, {
+          complexSteps: true,
+          wordDiffs: true,
+          simplifyDiff: true,
+        });
+        console.log(
+          `recreateTransform: ${(performance.now() - t0).toFixed(3)}ms`,
+        );
+
+        //console.log(transform);
+      } catch (e) {
+        console.error("Node.fromJSON failed:", e);
+      }
+    }
+  }, [editor]);
+
   useEffect(() => {
     if (editor && content) {
       let decorationSet = DecorationSet.empty;

package.json

@@ -69,6 +69,7 @@
     "linkifyjs": "^4.3.2",
     "marked": "13.0.3",
     "ms": "3.0.0-canary.1",
+    "prosemirror-changeset": "2.3.1",
     "qrcode": "^1.5.4",
     "uuid": "^11.1.0",
     "y-indexeddb": "^9.0.12",

pnpm-lock.yaml

@@ -168,6 +168,9 @@ importers:
       ms:
         specifier: 3.0.0-canary.1
         version: 3.0.0-canary.1
+      prosemirror-changeset:
+        specifier: 2.3.1
+        version: 2.3.1
       qrcode:
         specifier: ^1.5.4
         version: 1.5.4