implemented command to fetch list of languages

1 files changed, 22 insertions, 0 deletions

diff --git a/cmd/dolmetschctld/statemachine.go b/cmd/dolmetschctld/statemachine.go
index 2cea91d..99416a5 100644
--- a/cmd/dolmetschctld/statemachine.go
+++ b/cmd/dolmetschctld/statemachine.go
@@ -95,6 +95,10 @@ type getLanguageReq struct {
 	resCh chan Language
 }
 
+type getLanguagesReq struct {
+	resCh chan []Language
+}
+
 type setOriginal2InterpreterRatioReq struct {
 	ratio float32
 	resCh chan error
@@ -119,6 +123,7 @@ type StateMachine struct {
 
 	setLanguageCh                  chan setLanguageReq
 	getLanguageCh                  chan getLanguageReq
+	getLanguagesCh                 chan getLanguagesReq
 	setOriginal2InterpreterRatioCh chan setOriginal2InterpreterRatioReq
 	getOriginal2InterpreterRatioCh chan getOriginal2InterpreterRatioReq
 	getStateCh                     chan getStateReq
@@ -181,6 +186,14 @@ func (sm *StateMachine) initMixer() {
 	sm.state = StateSettled
 }
 
+func (sm *StateMachine) getLanguages() (langs []Language) {
+	langs = append(langs, "none")
+	for lang, _ := range sm.languages {
+		langs = append(langs, lang)
+	}
+	return
+}
+
 // the "current language" is what is currently spoken on stage
 func (sm *StateMachine) setLanguage(l Language) error {
 	if l == "none" {
@@ -263,6 +276,8 @@ func (sm *StateMachine) run() {
 			sm.reconcile(false)
 		case req := <-sm.getLanguageCh:
 			req.resCh <- sm.language
+		case req := <-sm.getLanguagesCh:
+			req.resCh <- sm.getLanguages()
 		case req := <-sm.setOriginal2InterpreterRatioCh:
 			req.resCh <- sm.setOriginal2InterpreterRatio(req.ratio)
 			sm.reconcile(false)
@@ -283,6 +298,7 @@ func NewStateMachine(m *mixer.Mixer) (*StateMachine, error) {
 	sm := &StateMachine{mixer: m}
 	sm.setLanguageCh = make(chan setLanguageReq, 10)
 	sm.getLanguageCh = make(chan getLanguageReq, 10)
+	sm.getLanguagesCh = make(chan getLanguagesReq, 10)
 	sm.setOriginal2InterpreterRatioCh = make(chan setOriginal2InterpreterRatioReq, 10)
 	sm.getOriginal2InterpreterRatioCh = make(chan getOriginal2InterpreterRatioReq, 10)
 	sm.getStateCh = make(chan getStateReq, 10)
@@ -346,6 +362,12 @@ func (sm *StateMachine) GetLanguage() Language {
 	return <-resCh
 }
 
+func (sm *StateMachine) GetLanguages() []Language {
+	resCh := make(chan []Language)
+	sm.getLanguagesCh <- getLanguagesReq{resCh}
+	return <-resCh
+}
+
 func (sm *StateMachine) SetOriginal2InterpreterRatio(r float32) error {
 	resCh := make(chan error)
 	sm.setOriginal2InterpreterRatioCh <- setOriginal2InterpreterRatioReq{r, resCh}