feat: add snjs package

packages/snjs/lib/Services/Sync/Account/Utilities.ts

@@ -0,0 +1,31 @@
+import {
+  EncryptedPayloadInterface,
+  DeletedPayloadInterface,
+  PayloadSource,
+  DeletedPayload,
+  EncryptedPayload,
+  FilteredServerItem,
+} from '@standardnotes/models'
+
+export function CreatePayloadFromRawServerItem(
+  rawItem: FilteredServerItem,
+  source: PayloadSource,
+): EncryptedPayloadInterface | DeletedPayloadInterface {
+  if (rawItem.deleted) {
+    return new DeletedPayload({ ...rawItem, content: undefined, deleted: true }, source)
+  } else if (rawItem.content != undefined) {
+    return new EncryptedPayload(
+      {
+        ...rawItem,
+        items_key_id: rawItem.items_key_id,
+        content: rawItem.content,
+        deleted: false,
+        errorDecrypting: false,
+        waitingForKey: false,
+      },
+      source,
+    )
+  } else {
+    throw Error('Unhandled case in createPayloadFromRawItem')
+  }
+}