multi-client but one ntg search, nontrivial config.json change

config/config.go

@@ -9,19 +9,21 @@ import (
 )
 
 type Config struct {
-	Name     string
 	Interval struct {
 		Input Duration
 		OK    Duration
 		Error Duration
 	}
-	States  []State
+	Clients map[string]struct {
+		States []State
+		IDs    struct {
+			Matrix string
+		}
+	}
 	Storage []string
-	Client  string
 	Message struct {
 		Matrix struct {
 			ReceiveEnabled bool
-			Client         string
 			Mock           bool
 			Homeserver     string
 			Username       string
@@ -54,6 +56,21 @@ func configPath() string {
 	return p
 }
 
+func AllStates() []State {
+	c := Get()
+	statem := map[State]struct{}{}
+	for _, v := range c.Clients {
+		for _, state := range v.States {
+			statem[state] = struct{}{}
+		}
+	}
+	states := make([]State, 0, len(statem)+1)
+	for k := range statem {
+		states = append(states, k)
+	}
+	return states
+}
+
 func Refresh() error {
 	b, err := ioutil.ReadFile(configPath())
 	if err != nil {