Added handlers used in a radiodj service. Currently just for listeners.

internal/http/dj_handlers.go

@@ -0,0 +1,39 @@
+package http
+
+import (
+	"dwelling-radio/internal/radio"
+	"fmt"
+	"log"
+	"net/http"
+)
+
+type DJHandlers struct {
+	listeners *radio.Listeners
+}
+
+func NewDJHandlers(listeners *radio.Listeners) *DJHandlers {
+	return &DJHandlers{listeners: listeners}
+}
+
+func (dj *DJHandlers) ListenersGet(w http.ResponseWriter, r *http.Request) {
+	w.Header().Add("Content-Type", "text/plain")
+	fmt.Fprint(w, dj.listeners.Current(), dj.listeners.Peak())
+}
+
+func (dj *DJHandlers) ListenersInc(w http.ResponseWriter, r *http.Request) {
+	l := dj.listeners.Inc()
+	w.WriteHeader(http.StatusCreated)
+	w.Header().Add("Content-Type", "text/plain")
+	fmt.Fprint(w, l)
+}
+
+func (dj *DJHandlers) ListenersDec(w http.ResponseWriter, r *http.Request) {
+	l, err := dj.listeners.Dec()
+	if err != nil {
+		log.Print(err)
+		http.Error(w, err.Error(), http.StatusBadRequest)
+	}
+	w.WriteHeader(http.StatusOK)
+	w.Header().Add("Content-Type", "text/plain")
+	fmt.Fprint(w, l)
+}