Add caching

internal/dav/response.go

@@ -39,6 +39,7 @@ func createMultiTorrentResponse(basePath string, torrents []torrent.Torrent) (*d
 // but it also handles the case where there are many torrents with the same name
 func createSingleTorrentResponse(basePath string, torrents []torrent.Torrent, t *torrent.TorrentManager) (*dav.MultiStatus, error) {
 	var responses []dav.Response
+
 	// initial response is the directory itself
 	currentPath := filepath.Join(basePath, torrents[0].Name)
 	responses = append(responses, dav.Directory(currentPath))
@@ -47,26 +48,28 @@ func createSingleTorrentResponse(basePath string, torrents []torrent.Torrent, t
 	finalName := make(map[string]bool)
 
 	var torrentResponses []dav.Response
+
 	for _, torrent := range torrents {
 		for _, file := range torrent.SelectedFiles {
 			if file.Link == "" {
 				log.Println("File has no link, skipping", file.Path)
-				// TODO: trigger a re-add for the file
-				// It is selected but no link is available
-				// I think this is handled on the manager side so we just need to refresh
-				// t.RefreshInfo(torrent.ID)
 				continue
 			}
+
 			filename := filepath.Base(file.Path)
-			if _, exists := nameAndLink[filename+file.Link]; exists {
+			key := filename + file.Link
+
+			if nameAndLink[key] {
 				continue
 			}
-			nameAndLink[filename+file.Link] = true
-			if _, exists := finalName[filename]; exists {
+			nameAndLink[key] = true
+
+			if finalName[filename] {
 				fragment := davextra.GetLinkFragment(file.Link)
 				filename = davextra.InsertLinkFragment(filename, fragment)
 			}
 			finalName[filename] = true
+
 			filePath := filepath.Join(currentPath, filename)
 			torrentResponses = append(torrentResponses, dav.File(
 				filePath,
@@ -76,6 +79,7 @@ func createSingleTorrentResponse(basePath string, torrents []torrent.Torrent, t
 			))
 		}
 	}
+
 	responses = append(responses, torrentResponses...)
 
 	return &dav.MultiStatus{