Improvements for JDA implementation. (#91)

* Added owneronly condition for JDA.

* Fixed command registration for JDA.

* Removed extraneous event handling.

* Initialize bot owner on ReadyEvent.

jda/src/main/java/co/aikar/commands/JDACommandManager.java

@@ -5,7 +5,6 @@ import com.google.common.collect.Maps;
 import net.dv8tion.jda.core.AccountType;
 import net.dv8tion.jda.core.JDA;
 import net.dv8tion.jda.core.entities.Message;
-import net.dv8tion.jda.core.entities.User;
 import net.dv8tion.jda.core.events.message.MessageReceivedEvent;
 import org.jetbrains.annotations.NotNull;
 
@@ -58,8 +57,7 @@ public class JDACommandManager extends CommandManager<
         });
     }
 
-    private long getBotOwnerId() {
-        // Lazy initialization is required because a forced RestAction on startup is bad
+    void initializeBotOwner() {
         if (botOwner == 0L) {
             if (jda.getAccountType() == AccountType.BOT) {
                 botOwner = jda.asBot().getApplicationInfo().complete().getOwner().getIdLong();
@@ -67,6 +65,11 @@ public class JDACommandManager extends CommandManager<
                 botOwner = jda.getSelfUser().getIdLong();
             }
         }
+    }
+
+    private long getBotOwnerId() {
+        // Just in case initialization on ReadyEvent fails.
+        initializeBotOwner();
         return botOwner;
     }
 
@@ -126,6 +129,7 @@ public class JDACommandManager extends CommandManager<
 
     @Override
     public void registerCommand(BaseCommand command) {
+        command.onRegister(this);
         for (Map.Entry<String, RootCommand> entry : command.registeredCommands.entrySet()) {
             String commandName = entry.getKey().toLowerCase();
             JDARootCommand cmd = (JDARootCommand) entry.getValue();

jda/src/main/java/co/aikar/commands/JDAListener.java

@@ -1,9 +1,8 @@
 package co.aikar.commands;
 
 import net.dv8tion.jda.core.entities.ChannelType;
+import net.dv8tion.jda.core.events.ReadyEvent;
 import net.dv8tion.jda.core.events.message.MessageReceivedEvent;
-import net.dv8tion.jda.core.events.message.guild.GuildMessageReceivedEvent;
-import net.dv8tion.jda.core.events.message.priv.PrivateMessageReceivedEvent;
 import net.dv8tion.jda.core.hooks.ListenerAdapter;
 
 public class JDAListener extends ListenerAdapter {
@@ -14,15 +13,6 @@ public class JDAListener extends ListenerAdapter {
 
         this.manager = manager;
     }
-    @Override
-    public void onGuildMessageReceived(GuildMessageReceivedEvent event) {
-        super.onGuildMessageReceived(event);
-    }
-
-    @Override
-    public void onPrivateMessageReceived(PrivateMessageReceivedEvent event) {
-        super.onPrivateMessageReceived(event);
-    }
 
     @Override
     public void onMessageReceived(MessageReceivedEvent event) {
@@ -30,4 +20,9 @@ public class JDAListener extends ListenerAdapter {
             this.manager.dispatchEvent(event);
         }
     }
+
+    @Override
+    public void onReady(ReadyEvent event) {
+        manager.initializeBotOwner();
+    }
 }