Enha: gziped css and js

main.go

@@ -10,6 +10,8 @@ import (
 	"net/http"
 	"os"
 	"os/signal"
+	"path/filepath"
+	"strings"
 	"syscall"
 	"time"
 )
@@ -20,6 +22,38 @@ func init() {
 	cfg = config.LoadConfigOrDefault("")
 }
 
+// GzipFileServer serves pre-compressed .gz files if available
+func GzipFileServer(root http.FileSystem) http.Handler {
+	fs := http.FileServer(root)
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		// Check if client accepts gzip
+		if strings.Contains(r.Header.Get("Accept-Encoding"), "gzip") {
+			// Check for .gz version of the file
+			gzPath := r.URL.Path + ".gz"
+			if file, err := root.Open(gzPath); err == nil {
+				file.Close()
+				// Set headers for gzip
+				w.Header().Set("Content-Encoding", "gzip")
+				w.Header().Set("Content-Type", getContentType(r.URL.Path))
+				r.URL.Path = gzPath
+			}
+		}
+		fs.ServeHTTP(w, r)
+	})
+}
+
+// Helper to set correct Content-Type
+func getContentType(path string) string {
+	switch filepath.Ext(path) {
+	case ".css":
+		return "text/css"
+	case ".js":
+		return "application/javascript"
+	default:
+		return "" // http.FileServer will detect it
+	}
+}
+
 func ListenToRequests(port string) *http.Server {
 	mux := http.NewServeMux()
 	server := &http.Server{
@@ -28,8 +62,9 @@ func ListenToRequests(port string) *http.Server {
 		// ReadTimeout:  time.Second * 5, // does this timeout conflict with sse connection?
 		WriteTimeout: 0, // sse streaming
 	}
-	fs := http.FileServer(http.Dir("assets/"))
-	mux.Handle("GET /assets/", http.StripPrefix("/assets/", fs))
+	// fs := http.FileServer(http.Dir("assets/"))
+	fs := http.Dir("assets/")
+	mux.Handle("GET /assets/", http.StripPrefix("/assets/", GzipFileServer(fs)))
 	//
 	mux.HandleFunc("GET /ping", handlers.HandlePing)
 	mux.HandleFunc("GET /", handlers.HandleHome)