mobile: add support for offline mode, backup with attachments

packages/core/src/api/index.ts

@@ -254,7 +254,7 @@ class Database {
       this.sql().withTables(),
       new NNMigrationProvider()
     );
-    await this.onInit(this.sql() as Kysely<RawDatabaseSchema>);
+    await this.onInit(this.sql() as unknown as Kysely<RawDatabaseSchema>);
     await this.initCollections();
     return true;
   }

packages/core/src/api/sync/index.ts

@@ -57,6 +57,7 @@ import { DefaultColors } from "../../collections/colors";
 export type SyncOptions = {
   type: "full" | "fetch" | "send";
   force?: boolean;
+  offlineMode?: boolean;
 };
 
 export default class SyncManager {
@@ -246,7 +247,7 @@ class Sync {
     await this.db.setLastSynced(Date.now());
     this.db.eventManager.publish(EVENTS.syncCompleted);
 
-    if (await this.db.kv().read("fullOfflineMode")) {
+    if (options.offlineMode) {
       const attachments = await this.db.attachments.linked
         .fields(["attachments.id", "attachments.hash", "attachments.chunkSize"])
         .items();

packages/core/src/database/crypto.ts

@@ -33,6 +33,7 @@ export class Crypto {
 
 export function isCipher(item: any): item is Cipher<"base64"> {
   return (
+    item !== null &&
     typeof item === "object" &&
     "cipher" in item &&
     "iv" in item &&