fix(proxy): filter out empty proxy groups

pkg/adapter/adapter.go

@@ -30,7 +30,7 @@ func NewAdapter(nodes []*server.Server, rules []*server.RuleGroup) *Adapter {
 		}
 	}
 	// 合并代理组
-	proxyGroup = append(proxyGroup, g...)
+	proxyGroup = RemoveEmptyGroup(append(proxyGroup, g...))
 	return &Adapter{
 		Adapter: proxy.Adapter{
 			Proxies: proxies,

pkg/adapter/uilts.go

@@ -195,3 +195,31 @@ func RemoveEmptyString(arr []string) []string {
 	}
 	return result
 }
+
+// RemoveElement 移除指定元素
+func RemoveElement(arr []string, element ...string) []string {
+	var result []string
+	for _, str := range arr {
+		if !tool.Contains(element, str) {
+			logger.Infof("Remove Element: %s", str)
+			result = append(result, str)
+		}
+	}
+	return result
+}
+
+func RemoveEmptyGroup(arr []proxy.Group) []proxy.Group {
+	var result []proxy.Group
+	var removeNames []string
+	for _, group := range arr {
+		if group.Name == "手动选择" {
+			group.Proxies = RemoveElement(group.Proxies, removeNames...)
+		}
+		if len(group.Proxies) > 0 {
+			result = append(result, group)
+		} else {
+			removeNames = append(removeNames, group.Name)
+		}
+	}
+	return result
+}