Complete message command parser and listener

The message command listener is now completed and the bot now also supports message-based commands with multiple aliases.

src/main/java/wtf/beatrice/hidekobot/objects/MessageCommand.java

@@ -2,24 +2,43 @@ package wtf.beatrice.hidekobot.objects;
 
 import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
 
+import java.util.LinkedList;
+
 public interface MessageCommand
 {
 
     /**
-     * Get the command's label, which is used when determining if this is the correct command or not.
+     * Get the command's label(s), which are used when determining if this is the correct command or not.
+     * The first label in the collection is considered the main command name. All other labels are considered
+     * command aliases.
      *
      * @return the command label.
      */
-    String getCommandName();
+    LinkedList<String> getCommandLabels();
+
+    /**
+     * Say if this command does its own text parsing, and tell the message listener if it should automatically
+     * split all arguments in separate entries of an array, or pass everything as the first entry of that array.
+     *
+     * This is better instead of getting the message contents from the event, because the message listener will
+     * still strip the bot prefix and command name from the args, but leave the rest untouched.
+     *
+     * @return the boolean being true if no parsing should be made by the command handler.
+     */
+    boolean passRawArgs();
 
     /**
      * Run the command logic by parsing the event and replying accordingly.
      *
+     *
      * @param event the received message event. It should not be used for parsing message contents data as
      *              the arguments already account for it in a better way.
+     *
+     * @param label the command label that was used, taken from all available command aliases.
+     *
      * @param args a pre-formatted list of arguments, excluding the bot prefix and the command name.
      *             This is useful because command logic won't have to change in case the bot prefix is changed,
      *             removed, or we switch to another method of triggering commands (ping, trigger words, ...).
      */
-    void runCommand(MessageReceivedEvent event, String[] args);
+    void runCommand(MessageReceivedEvent event, String label, String[] args);
 }

src/main/java/wtf/beatrice/hidekobot/objects/MessageCommandAliasesComparator.java

@@ -0,0 +1,19 @@
+package wtf.beatrice.hidekobot.objects;
+
+import java.util.Comparator;
+import java.util.LinkedList;
+
+/**
+ * This class gets two linked lists, and compares their first value alphabetically.
+ */
+public class MessageCommandAliasesComparator implements Comparator<LinkedList<String>> {
+
+    @Override
+    public int compare(LinkedList<String> linkedList, LinkedList<String> t1) {
+
+        if(linkedList.isEmpty()) return 0;
+        if(t1.isEmpty()) return 0;
+
+        return linkedList.get(0).compareTo(t1.get(0));
+    }
+}