Change proxies flow

lib/domain/singbox/outbounds.dart

@@ -0,0 +1,38 @@
+import 'package:dartx/dartx.dart';
+import 'package:freezed_annotation/freezed_annotation.dart';
+import 'package:hiddify/domain/singbox/proxy_type.dart';
+
+part 'outbounds.freezed.dart';
+part 'outbounds.g.dart';
+
+@freezed
+class OutboundGroup with _$OutboundGroup {
+  @JsonSerializable(fieldRename: FieldRename.kebab)
+  const factory OutboundGroup({
+    required String tag,
+    @JsonKey(fromJson: _typeFromJson) required ProxyType type,
+    required String selected,
+    @Default([]) List<OutboundGroupItem> items,
+  }) = _OutboundGroup;
+
+  factory OutboundGroup.fromJson(Map<String, dynamic> json) =>
+      _$OutboundGroupFromJson(json);
+}
+
+@freezed
+class OutboundGroupItem with _$OutboundGroupItem {
+  @JsonSerializable(fieldRename: FieldRename.kebab)
+  const factory OutboundGroupItem({
+    required String tag,
+    @JsonKey(fromJson: _typeFromJson) required ProxyType type,
+    required int urlTestDelay,
+  }) = _OutboundGroupItem;
+
+  factory OutboundGroupItem.fromJson(Map<String, dynamic> json) =>
+      _$OutboundGroupItemFromJson(json);
+}
+
+ProxyType _typeFromJson(dynamic type) =>
+    ProxyType.values
+        .firstOrNullWhere((e) => e.key == (type as String?)?.toLowerCase()) ??
+    ProxyType.unknown;