Working

lib/controllers/client_controller.dart

@@ -0,0 +1,33 @@
+import "dart:io";
+
+import "package:matrix/matrix.dart";
+import "package:nexusbot/controllers/settings_controller.dart";
+import "package:riverpod/riverpod.dart";
+import "package:sqflite_common_ffi/sqflite_ffi.dart";
+
+class ClientController extends AsyncNotifier<Client> {
+  @override
+  Future<Client> build() async {
+    final settings = ref.watch(SettingsController.provider)!;
+    final client = Client(
+      "nexusbot",
+      database: await MatrixSdkDatabase.init(
+        "NexusBot",
+        database: await databaseFactoryFfi.openDatabase(inMemoryDatabasePath),
+      ),
+    );
+
+    await client.checkHomeserver(settings.homeserver);
+    await client.login(
+      LoginType.mLoginPassword,
+      identifier: AuthenticationUserIdentifier(user: settings.name),
+      password: (await File(settings.botPasswordFile).readAsString()).trim(),
+    );
+
+    return client;
+  }
+
+  static final provider = AsyncNotifierProvider<ClientController, Client>(
+    ClientController.new,
+  );
+}