something

web/embed.go

@@ -0,0 +1,45 @@
+package web
+
+import (
+	"embed"
+	"io/fs"
+	"net/http"
+	"strings"
+)
+
+//go:embed dist/*
+var distFS embed.FS
+
+// GetFileSystem returns an http.FileSystem for the embedded web UI files
+func GetFileSystem() http.FileSystem {
+	subFS, err := fs.Sub(distFS, "dist")
+	if err != nil {
+		panic(err)
+	}
+	return http.FS(subFS)
+}
+
+// SPAHandler returns an http.Handler that serves the embedded SPA
+// It serves static files if they exist, otherwise falls back to index.html
+func SPAHandler() http.Handler {
+	fsys := GetFileSystem()
+	fileServer := http.FileServer(fsys)
+
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		path := r.URL.Path
+
+		// Try to open the file
+		f, err := fsys.Open(strings.TrimPrefix(path, "/"))
+		if err != nil {
+			// File doesn't exist, serve index.html for SPA routing
+			r.URL.Path = "/"
+			fileServer.ServeHTTP(w, r)
+			return
+		}
+		f.Close()
+
+		// File exists, serve it
+		fileServer.ServeHTTP(w, r)
+	})
+}
+