Set time by ended or added correctly

internal/universal/head.go

@@ -12,6 +12,10 @@ import (
 	"github.com/hashicorp/golang-lru/v2/expirable"
 )
 
+const (
+	SPLIT_TOKEN = "$"
+)
+
 func HandleHeadRequest(w http.ResponseWriter, r *http.Request, t *torrent.TorrentManager, cache *expirable.LRU[string, string]) {
 	log := logutil.NewLogger().Named("head")
 
@@ -30,11 +34,13 @@ func HandleHeadRequest(w http.ResponseWriter, r *http.Request, t *torrent.Torren
 	}
 
 	if data, exists := cache.Get("head:" + requestPath); exists {
-		splits := strings.Split(data, " ")
+		splits := strings.Split(data, SPLIT_TOKEN)
 		contentType := splits[0]
 		contentLength := splits[1]
+		lastModified := splits[2]
 		w.Header().Set("Content-Type", contentType)
 		w.Header().Set("Content-Length", contentLength)
+		w.Header().Set("Last-Modified", lastModified)
 		w.WriteHeader(http.StatusOK)
 		return
 	}
@@ -70,9 +76,12 @@ func HandleHeadRequest(w http.ResponseWriter, r *http.Request, t *torrent.Torren
 	}
 	contentType := getContentMimeType(filename)
 	contentLength := fmt.Sprintf("%d", file.Bytes)
+	lastModified := file.Ended
 	w.Header().Set("Content-Type", contentType)
 	w.Header().Set("Content-Length", contentLength)
-	cache.Add("head:"+requestPath, contentType+" "+contentLength)
+	w.Header().Set("Last-Modified", lastModified)
+	cacheVal := strings.Join([]string{contentType, contentLength, lastModified}, SPLIT_TOKEN)
+	cache.Add("head:"+requestPath, cacheVal)
 	w.WriteHeader(http.StatusOK)
 }