fix: backwards compatibility

Signed-off-by: peterpeterparker <[email protected]>

Author: peterpeterparker

studio/src/app/workers/sync.worker.ts

@@ -52,14 +52,14 @@ const syncData = async () => {
   const {updateDecks, deleteDecks, deleteSlides, updateSlides, updateDocs, deleteDocs, deleteParagraphs, updateParagraphs} = data;
 
   if (
-    updateDecks.length === 0 &&
-    deleteDecks.length === 0 &&
-    deleteSlides.length === 0 &&
-    updateSlides.length === 0 &&
-    updateDocs.length === 0 &&
-    deleteDocs.length === 0 &&
-    deleteParagraphs.length === 0 &&
-    updateParagraphs.length === 0
+    updateDecks?.length === 0 &&
+    deleteDecks?.length === 0 &&
+    deleteSlides?.length === 0 &&
+    updateSlides?.length === 0 &&
+    updateDocs?.length === 0 &&
+    deleteDocs?.length === 0 &&
+    deleteParagraphs?.length === 0 &&
+    updateParagraphs?.length === 0
   ) {
     return;
   }
@@ -182,7 +182,7 @@ const getParagraph = async ({docId, paragraphId, key}: SyncPendingParagraph): Pr
 };
 
 const uniqueSyncData = (data: SyncPendingData[]): SyncPendingData[] => {
-  return data.reduce((acc: SyncPendingData[], curr: SyncPendingData) => {
+  return (data || []).reduce((acc: SyncPendingData[], curr: SyncPendingData) => {
     const index: number = acc.findIndex(({key}: SyncPendingData) => key === curr.key);
 
     if (index === -1) {