init

lib/app/features/peers/controller/peers_controller.dart

@@ -0,0 +1,50 @@
+import 'package:riverpod_annotation/riverpod_annotation.dart';
+
+import '../../../../backend/api/commands.dart' as commands;
+import '../../../../backend/discovery/model.dart';
+
+part 'peers_controller.g.dart';
+
+@riverpod
+class PeersController extends _$PeersController {
+  @override
+  Future<List<Peer>> build() async {
+    return commands.getPeers();
+  }
+
+  Future<void> refresh() async {
+    state = const AsyncLoading();
+    state = await AsyncValue.guard(commands.getPeers);
+  }
+
+  void upsertPeer(Peer peer) {
+    final current = state.asData?.value ?? const <Peer>[];
+    final index = current.indexWhere((item) => item.id == peer.id);
+
+    if (index < 0) {
+      state = AsyncData([...current, peer]);
+      return;
+    }
+
+    final old = current[index];
+    if (old == peer) {
+      return;
+    }
+
+    final next = [...current];
+    next[index] = peer;
+    state = AsyncData(next);
+  }
+
+  void removePeer(String id) {
+    final current = state.asData?.value;
+    if (current == null || current.isEmpty) {
+      return;
+    }
+
+    final next = current.where((item) => item.id != id).toList(growable: false);
+    if (next.length != current.length) {
+      state = AsyncData(next);
+    }
+  }
+}