Chore: make the code more semantic

adapters/outbound/selector.go

@@ -0,0 +1,67 @@
+package adapters
+
+import (
+	"errors"
+	"sort"
+
+	C "github.com/Dreamacro/clash/constant"
+)
+
+type Selector struct {
+	name     string
+	selected C.Proxy
+	proxies  map[string]C.Proxy
+}
+
+func (s *Selector) Name() string {
+	return s.name
+}
+
+func (s *Selector) Type() C.AdapterType {
+	return C.Selector
+}
+
+func (s *Selector) Generator(metadata *C.Metadata) (adapter C.ProxyAdapter, err error) {
+	return s.selected.Generator(metadata)
+}
+
+func (s *Selector) Now() string {
+	return s.selected.Name()
+}
+
+func (s *Selector) All() []string {
+	var all []string
+	for k := range s.proxies {
+		all = append(all, k)
+	}
+	sort.Strings(all)
+	return all
+}
+
+func (s *Selector) Set(name string) error {
+	proxy, exist := s.proxies[name]
+	if !exist {
+		return errors.New("Proxy does not exist")
+	}
+	s.selected = proxy
+	return nil
+}
+
+func NewSelector(name string, proxies map[string]C.Proxy) (*Selector, error) {
+	if len(proxies) == 0 {
+		return nil, errors.New("Provide at least one proxy")
+	}
+
+	mapping := make(map[string]C.Proxy)
+	var init string
+	for k, v := range proxies {
+		mapping[k] = v
+		init = k
+	}
+	s := &Selector{
+		name:     name,
+		proxies:  mapping,
+		selected: proxies[init],
+	}
+	return s, nil
+}