Plex/src/main/java/dev/plex/handlers/CommandHandler.java

package dev.plex.handlers;

import com.google.common.collect.Lists;
import dev.plex.PlexBase;
import dev.plex.command.PlexCommand;
import dev.plex.command.annotation.System;
import dev.plex.util.PlexLog;
import dev.plex.util.PlexUtils;
import java.lang.reflect.InvocationTargetException;
import java.util.List;
import java.util.Set;

public class CommandHandler extends PlexBase
{
    public CommandHandler()
    {
        Set<Class<? extends PlexCommand>> commandSet = PlexUtils.getClassesBySubType("dev.plex.command.impl", PlexCommand.class);
        List<PlexCommand> commands = Lists.newArrayList();

        commandSet.forEach(clazz ->
        {
            try
            {
                System annotation = clazz.getDeclaredAnnotation(System.class);
                if (annotation != null && annotation.value().equalsIgnoreCase(plugin.getSystem()))
                {
                    commands.add(clazz.getConstructor().newInstance());
                    return;
                }

                commands.add(clazz.getConstructor().newInstance());
            }
            catch (InvocationTargetException | InstantiationException | IllegalAccessException | NoSuchMethodException ex)
            {
                PlexLog.log("Failed to register " + clazz.getSimpleName() + " as a command!");
            }
        });

        PlexLog.log(String.format("Registered %s commands from %s classes!", commands.size(), commandSet.size()));
    }
}