Print list of downloaded songs at finished download

src/player/commands/play.rs

@@ -86,6 +86,18 @@ impl Play {
             }
         };
 
+        let mut info = if source.len() == 1 {
+            "Finished downloading song:".to_string()
+        } else {
+            "Finished downloading songs:".to_string()
+        };
+
+        for song in &source {
+            info = format!("{}\n\t{}", info, song.name);
+        }
+
+        print_error!(msg.channel_id.say(info));
+
         {
             let playlist_mutex = self.media.playlist_mut();
             playlist_mutex.borrow_mut().append(&mut source);