Add support for uploading tracks to play them.

src/main/java/moe/nekojimi/chords/Chords.java

@@ -29,6 +29,7 @@ import net.dv8tion.jda.api.JDABuilder;
 import net.dv8tion.jda.api.entities.*;
 import net.dv8tion.jda.api.entities.channel.middleman.AudioChannel;
 import net.dv8tion.jda.api.events.guild.voice.GuildVoiceUpdateEvent;
+import net.dv8tion.jda.api.events.message.MessageEmbedEvent;
 import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
 import net.dv8tion.jda.api.hooks.ListenerAdapter;
 import net.dv8tion.jda.api.managers.AudioManager;
@@ -238,20 +239,35 @@ public final class Chords extends ListenerAdapter
 
             String cmd = split[0].toLowerCase();
 
-            if (!cmd.startsWith("!"))
+            if (cmd.startsWith("!"))
-                return; // doesn't start with prefix char
-
-            cmd = cmd.substring(1); // strip prefix char
-
-//            String arg = "";
-
-            if (commands.containsKey(cmd))
             {
-                Command command = commands.get(cmd);
+                cmd = cmd.substring(1); // strip prefix char
-                command.call(invocation);
+
-            } else
+                if (commands.containsKey(cmd))
+                {
+                    Command command = commands.get(cmd);
+                    command.call(invocation);
+                } else
+                {
+                    helpCommand.call(invocation);
+                }
+            } else if (!event.getMessage().getAttachments().isEmpty())
             {
-                helpCommand.call(invocation);
+                for (Message.Attachment attach : event.getMessage().getAttachments())
+                {
+                    if (attach.getContentType().startsWith("audio") || attach.getContentType().startsWith("video"))
+                    {
+                        try
+                        {
+                            invocation = new Invocation(event, List.of(new URL(attach.getUrl()).toExternalForm()));
+                            invocation.setRequestMessage(message);
+                            playCommand.call(invocation);
+                        } catch (MalformedURLException ex)
+                        {
+                            Logger.getLogger(Chords.class.getName()).log(Level.WARNING, null, ex);
+                        }
+                    }
+                }
             }
         } catch (Exception ex)
         {
@@ -261,6 +277,8 @@ public final class Chords extends ListenerAdapter
                 event.getChannel().sendMessage("Error: " + ex.getMessage()).queue();
             log("UERR", "Command error:" + ex.getMessage());
         }
+
+        // TODO: this will handle uploading files, maybe
     }
 
     public void queueDownload(TrackRequest request)
@@ -488,7 +506,7 @@ public final class Chords extends ListenerAdapter
                         String progressDetails = "";
                         if (track.getProgress() >= 0)
                         {
-                            if (track.getProgress() >= lastProgressUpdate + 10.0)
+                            if (track.getProgress() >= lastProgressUpdate + 5.0)
                             {
                                 shouldUpdate = true;
                                 lastProgressUpdate = track.getProgress();