Fix activity editor (#9165)

packages/twenty-front/src/modules/activities/hooks/useReplaceActivityBlockEditorContent.ts

@@ -0,0 +1,34 @@
+import { BLOCK_SCHEMA } from '@/activities/blocks/constants/Schema';
+import { recordStoreFamilyState } from '@/object-record/record-store/states/recordStoreFamilyState';
+import { isNonEmptyString } from '@sniptt/guards';
+import { useRecoilCallback } from 'recoil';
+import { isDefined } from 'twenty-ui';
+import { isDeeplyEqual } from '~/utils/isDeeplyEqual';
+
+export const useReplaceActivityBlockEditorContent = (
+  editor: typeof BLOCK_SCHEMA.BlockNoteEditor,
+) => {
+  const replaceBlockEditorContent = useRecoilCallback(
+    ({ snapshot }) =>
+      (activityId: string) => {
+        if (isDefined(editor)) {
+          const activityInStore = snapshot
+            .getLoadable(recordStoreFamilyState(activityId))
+            .getValue();
+
+          const content = isNonEmptyString(activityInStore?.body)
+            ? JSON.parse(activityInStore?.body)
+            : [{ type: 'paragraph', content: '' }];
+
+          if (!isDeeplyEqual(editor.document, content)) {
+            editor.replaceBlocks(editor.document, content);
+          }
+        }
+      },
+    [editor],
+  );
+
+  return {
+    replaceBlockEditorContent,
+  };
+};