better xray support

lib/singbox/model/singbox_outbound.dart

@@ -15,8 +15,7 @@ class SingboxOutboundGroup with _$SingboxOutboundGroup {
     @Default([]) List<SingboxOutboundGroupItem> items,
   }) = _SingboxOutboundGroup;
 
-  factory SingboxOutboundGroup.fromJson(Map<String, dynamic> json) =>
-      _$SingboxOutboundGroupFromJson(json);
+  factory SingboxOutboundGroup.fromJson(Map<String, dynamic> json) => _$SingboxOutboundGroupFromJson(json);
 }
 
 @freezed
@@ -30,11 +29,9 @@ class SingboxOutboundGroupItem with _$SingboxOutboundGroupItem {
     required int urlTestDelay,
   }) = _SingboxOutboundGroupItem;
 
-  factory SingboxOutboundGroupItem.fromJson(Map<String, dynamic> json) =>
-      _$SingboxOutboundGroupItemFromJson(json);
+  factory SingboxOutboundGroupItem.fromJson(Map<String, dynamic> json) => _$SingboxOutboundGroupItemFromJson(json);
 }
 
-ProxyType _typeFromJson(dynamic type) =>
-    ProxyType.values
-        .firstOrNullWhere((e) => e.key == (type as String?)?.toLowerCase()) ??
-    ProxyType.unknown;
+final Map<String, ProxyType> _keyMap = Map.fromEntries(ProxyType.values.map((e) => MapEntry(e.key, e)));
+
+ProxyType _typeFromJson(dynamic type) => ProxyType.fromJson(type);

lib/singbox/model/singbox_proxy_type.dart

@@ -21,7 +21,13 @@ enum ProxyType {
   selector("Selector"),
   urltest("URLTest"),
   warp("Warp"),
-  xray("XRay"),
+
+  xvless("XVLESS"),
+  xvmess("XVMess"),
+  xtrojan("Xtrojan"),
+  xfreedom("Xfragment"),
+  xshadowsocks("XShadowsocks"),
+  xsocks("XSocks"),
   unknown("Unknown");
 
   const ProxyType(this.label);
@@ -33,4 +39,6 @@ enum ProxyType {
   static List<ProxyType> groupValues = [selector, urltest];
 
   bool get isGroup => ProxyType.groupValues.contains(this);
+  static final Map<String, ProxyType> _keyMap = Map.fromEntries(ProxyType.values.map((e) => MapEntry(e.key, e)));
+  static ProxyType fromJson(dynamic type) => _keyMap[(type as String?)?.toLowerCase()] ?? ProxyType.unknown;
 }