runs

src/cmd/server/handler/ui.go

@@ -2,15 +2,26 @@ package handler
 
 import (
 	"encoding/json"
+	"fmt"
 	"net/http"
 	"os"
 	"path"
 	"show-rss/src/feeds"
 	"slices"
+	"strings"
 	"text/template"
 	"time"
+
+	"embed"
+	_ "embed"
 )
 
+//go:embed testdata/index.tmpl
+var embeddedIndexTMPL string
+
+//go:embed testdata/*
+var embeddedDir embed.FS
+
 var dir = func() string {
 	if v := os.Getenv("UI_D"); v != "" {
 		return v
@@ -19,11 +30,13 @@ var dir = func() string {
 }()
 
 func (h Handler) ui(w http.ResponseWriter, r *http.Request) error {
-	fs := http.FileServer(http.Dir(dir))
-	if path.Base(r.URL.Path) == "ui" {
+	if path.Base(r.URL.Path) == "ui" || r.URL.Path == "/" {
 		return h.uiIndex(w, r)
 	}
-	http.StripPrefix("/experimental/ui", fs).ServeHTTP(w, r)
+
+	fs := http.FileServer(http.FS(embeddedDir))
+	r.URL.Path = fmt.Sprintf("/testdata/%s", strings.TrimPrefix(r.URL.Path, "/experimental/ui"))
+	fs.ServeHTTP(w, r)
 	return nil
 }
 
@@ -47,6 +60,9 @@ func (h Handler) uiIndex(w http.ResponseWriter, r *http.Request) error {
 	}
 
 	b, _ := os.ReadFile(path.Join(dir, "index.tmpl"))
+	if len(b) == 0 {
+		b = []byte(embeddedIndexTMPL)
+	}
 
 	tmpl := template.New(r.URL.Path).Funcs(template.FuncMap{
 		"feeds": func() []feeds.Feed {