Refactor

lib/singbox/model/singbox_config_enum.dart

@@ -0,0 +1,68 @@
+import 'package:hiddify/core/localization/translations.dart';
+import 'package:hiddify/utils/platform_utils.dart';
+import 'package:json_annotation/json_annotation.dart';
+
+enum ServiceMode {
+  proxy,
+  systemProxy,
+  tun;
+
+  static ServiceMode get defaultMode =>
+      PlatformUtils.isDesktop ? systemProxy : tun;
+
+  static List<ServiceMode> get choices {
+    if (PlatformUtils.isDesktop) {
+      return values;
+    }
+    return [proxy, tun];
+  }
+
+  String present(TranslationsEn t) => switch (this) {
+        proxy => t.settings.config.serviceModes.proxy,
+        systemProxy => t.settings.config.serviceModes.systemProxy,
+        tun => t.settings.config.serviceModes.tun,
+      };
+}
+
+@JsonEnum(valueField: 'key')
+enum IPv6Mode {
+  disable("ipv4_only"),
+  enable("prefer_ipv4"),
+  prefer("prefer_ipv6"),
+  only("ipv6_only");
+
+  const IPv6Mode(this.key);
+
+  final String key;
+
+  String present(TranslationsEn t) => switch (this) {
+        disable => t.settings.config.ipv6Modes.disable,
+        enable => t.settings.config.ipv6Modes.enable,
+        prefer => t.settings.config.ipv6Modes.prefer,
+        only => t.settings.config.ipv6Modes.only,
+      };
+}
+
+@JsonEnum(valueField: 'key')
+enum DomainStrategy {
+  auto(""),
+  preferIpv6("prefer_ipv6"),
+  preferIpv4("prefer_ipv4"),
+  ipv4Only("ipv4_only"),
+  ipv6Only("ipv6_only");
+
+  const DomainStrategy(this.key);
+
+  final String key;
+
+  String get displayName => switch (this) {
+        auto => "auto",
+        _ => key,
+      };
+}
+
+enum TunImplementation {
+  mixed,
+  system,
+  gVisor;
+}