extracts handler functions from main.go

go.mod

@@ -1,4 +1,4 @@
-module github.com/hugomd/ascii-live
+module forgejo.edf-bootstrap.cx.fg1.ffm.osc.live/Franz.Germann/ascii-live
 
 go 1.24.1
 

handlers/handlers.go

@@ -0,0 +1,102 @@
+package handlers
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"strings"
+	"time"
+
+	"forgejo.edf-bootstrap.cx.fg1.ffm.osc.live/Franz.Germann/ascii-live/frames"
+	"github.com/golang/glog"
+	"github.com/gorilla/mux"
+)
+
+var NotFoundMessage = map[string]string{
+	"error": "Frames not found. Navigate to /ascii/list for list of frames. Navigate to https://github.com/hugomd/ascii-live to submit new frames.",
+}
+
+var NotCurledMessage = map[string]string{
+	"error": "You almost ruined a good surprise. Come on, curl it in terminal.",
+}
+
+var availableFrames []string
+
+func init() {
+	for k := range frames.FrameMap {
+		availableFrames = append(availableFrames, k)
+	}
+}
+
+func writeJson(w http.ResponseWriter, r *http.Request, res interface{}, status int) {
+	w.Header().Set("Content-Type", "application/json")
+	data, err := json.Marshal(res)
+	if err != nil {
+		return
+	}
+	w.WriteHeader(status)
+	fmt.Fprint(w, string(data))
+}
+
+func ListHandler(w http.ResponseWriter, r *http.Request) {
+	writeJson(w, r, map[string][]string{"frames": availableFrames}, http.StatusOK)
+}
+
+func NotFoundHandler(w http.ResponseWriter, r *http.Request) {
+	writeJson(w, r, NotFoundMessage, http.StatusNotFound)
+}
+
+func NotCurledHandler(w http.ResponseWriter, r *http.Request) {
+	writeJson(w, r, NotCurledMessage, http.StatusExpectationFailed)
+}
+
+func Handler(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+	flusher := w.(http.Flusher)
+
+	vars := mux.Vars(r)
+	frameSource := vars["frameSource"]
+	glog.Infof("Frame source %s", frameSource)
+
+	frames, ok := frames.FrameMap[frameSource]
+	if !ok {
+		NotFoundHandler(w, r)
+		return
+	}
+
+	userAgent := r.Header.Get("User-Agent")
+	if !strings.Contains(userAgent, "curl") {
+		NotCurledHandler(w, r)
+		return
+	}
+
+	w.Header().Set("Transfer-Encoding", "chunked")
+	w.WriteHeader(http.StatusOK)
+
+	i := 0
+	for {
+		select {
+		// Handle client disconnects
+		case <-ctx.Done():
+			glog.Infof("Client stopped listening")
+			return
+		default:
+			if i >= frames.GetLength() {
+				i = 0
+			}
+			// Artificially wait between reponses.
+			time.Sleep(frames.GetSleep())
+
+			// Clear screen
+			clearScreen := "\033[2J\033[H"
+			newLine := "\n"
+
+			// Write frames
+			fmt.Fprint(w, clearScreen+frames.GetFrame(i)+newLine)
+			i++
+
+			// Send some data.
+			flusher.Flush()
+		}
+	}
+}

main.go

@@ -1,108 +1,13 @@
 package main
 
 import (
-	"encoding/json"
 	"flag"
-	"fmt"
 	"net/http"
-	"strings"
-	"time"
-
-	"github.com/hugomd/ascii-live/frames"
 
 	"github.com/golang/glog"
 	"github.com/gorilla/mux"
 )
 
-var NotFoundMessage = map[string]string{
-	"error": "Frames not found. Navigate to /ascii/list for list of frames. Navigate to https://github.com/hugomd/ascii-live to submit new frames.",
-}
-
-var NotCurledMessage = map[string]string{
-	"error": "You almost ruined a good surprise. Come on, curl it in terminal.",
-}
-
-var availableFrames []string
-
-func init() {
-	for k := range frames.FrameMap {
-		availableFrames = append(availableFrames, k)
-	}
-}
-
-func writeJson(w http.ResponseWriter, r *http.Request, res interface{}, status int) {
-	w.Header().Set("Content-Type", "application/json")
-	data, err := json.Marshal(res)
-	if err != nil {
-		return
-	}
-	w.WriteHeader(status)
-	fmt.Fprint(w, string(data))
-}
-
-func listHandler(w http.ResponseWriter, r *http.Request) {
-	writeJson(w, r, map[string][]string{"frames": availableFrames}, http.StatusOK)
-}
-
-func notFoundHandler(w http.ResponseWriter, r *http.Request) {
-	writeJson(w, r, NotFoundMessage, http.StatusNotFound)
-}
-
-func notCurledHandler(w http.ResponseWriter, r *http.Request) {
-	writeJson(w, r, NotCurledMessage, http.StatusExpectationFailed)
-}
-
-func handler(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-	flusher := w.(http.Flusher)
-
-	vars := mux.Vars(r)
-	frameSource := vars["frameSource"]
-	glog.Infof("Frame source %s", frameSource)
-
-	frames, ok := frames.FrameMap[frameSource]
-	if !ok {
-		notFoundHandler(w, r)
-		return
-	}
-
-	userAgent := r.Header.Get("User-Agent")
-	if !strings.Contains(userAgent, "curl") {
-		notCurledHandler(w, r)
-		return
-	}
-
-	w.Header().Set("Transfer-Encoding", "chunked")
-	w.WriteHeader(http.StatusOK)
-
-	i := 0
-	for {
-		select {
-		// Handle client disconnects
-		case <-ctx.Done():
-			glog.Infof("Client stopped listening")
-			return
-		default:
-			if i >= frames.GetLength() {
-				i = 0
-			}
-			// Artificially wait between reponses.
-			time.Sleep(frames.GetSleep())
-
-			// Clear screen
-			clearScreen := "\033[2J\033[H"
-			newLine := "\n"
-
-			// Write frames
-			fmt.Fprint(w, clearScreen+frames.GetFrame(i)+newLine)
-			i++
-
-			// Send some data.
-			flusher.Flush()
-		}
-	}
-}
-
 // Server.
 func main() {
 	flag.Parse()
@@ -110,9 +15,9 @@ func main() {
 	flag.Set("logtostderr", "true")
 
 	r := mux.NewRouter()
-	r.HandleFunc("/ascii-live/list", listHandler).Methods("GET")
+	r.HandleFunc("/ascii-live/list", ListHandler).Methods("GET")
-	r.HandleFunc("/ascii-live/{frameSource}", handler).Methods("GET")
+	r.HandleFunc("/ascii-live/{frameSource}", Handler).Methods("GET")
-	r.NotFoundHandler = http.HandlerFunc(notFoundHandler)
+	r.NotFoundHandler = http.HandlerFunc(NotFoundHandler)
 
 	srv := &http.Server{
 		Handler: r,