new: feat: add magnet-metadata-api post processor (#39)

* new: feat: add magnet-metadata-api post processor

* chg: fix: lint issue

* chg: chore: comment optional containers

* chg: fix: remove redundant check

api/bludv.go

@@ -80,7 +80,7 @@ func (i *Indexer) HandlerBluDVIndexer(w http.ResponseWriter, r *http.Request) {
 	})
 
 	// extract each torrent link
-	indexedTorrents := utils.ParallelMap(links, func(link string) ([]schema.IndexedTorrent, error) {
+	indexedTorrents := utils.ParallelFlatMap(links, func(link string) ([]schema.IndexedTorrent, error) {
 		return getTorrentsBluDV(ctx, i, link)
 	})
 
@@ -137,7 +137,7 @@ func getTorrentsBluDV(ctx context.Context, i *Indexer, link string) ([]schema.In
 		// if decoded magnet link is indeed a magnet link, append it
 		if strings.HasPrefix(magnetLinkDecoded, "magnet:") {
 			magnetLinks = append(magnetLinks, magnetLinkDecoded)
-		} else {
+		} else if !strings.Contains(magnetLinkDecoded, "watch.brplayer") {
 			fmt.Printf("WARN: link \"%s\" decoding resulted in non-magnet link: %s\n", href, magnetLinkDecoded)
 		}
 	})
@@ -211,6 +211,11 @@ func getTorrentsBluDV(ctx context.Context, i *Indexer, link string) ([]schema.In
 			if len(size) == len(magnetLinks) {
 				mySize = size[it]
 			}
+			if mySize == "" {
+				go func() {
+					_, _ = i.magnetMetadataAPI.FetchMetadata(ctx, magnetLink)
+				}()
+			}
 
 			ixt := schema.IndexedTorrent{
 				Title:         releaseTitle,