package com.nincraft.ninbot.command;

import com.nincraft.ninbot.util.MessageSenderHelper;
import com.nincraft.ninbot.util.Reference;
import lombok.extern.log4j.Log4j2;
import lombok.val;
import net.dv8tion.jda.core.entities.Guild;
import net.dv8tion.jda.core.entities.Role;
import net.dv8tion.jda.core.events.message.MessageReceivedEvent;

import java.util.List;

@Log4j2
public class SubscribeCommand extends AbstractCommand {

    private List<String> roleBlacklist;

    public SubscribeCommand() {
        roleBlacklist = Reference.getRoleBlacklist();
        commandLength = 3;
        commandDescription = "Subscribes you to a game for game gathering events";
    }

    @Override
    public void execute(MessageReceivedEvent event) {
        log.trace("execute SubscribeCommand: " + event);
        val channel = event.getChannel();
        val server = event.getGuild();
        val content = event.getMessage().getContent();
        if (isCommandLengthCorrect(content)) {
            val subscribeTo = content.split(" ")[2];
            val role = getRole(server, subscribeTo);
            if (isValidSubscribeRole(role)) {
                MessageSenderHelper.sendMessage(channel, "Subscribing %s to %s", event.getAuthor().getName(), subscribeTo);
                server.getController().addRolesToMember(event.getMember(), role).queue();
            } else {
                MessageSenderHelper.sendMessage(channel, "Could not find the role \"%s\", contact an admin to create the role", subscribeTo);
            }
        } else {
            MessageSenderHelper.sendMessage(channel, "This command requires %s parameters", String.valueOf(commandLength));
        }
    }

    private boolean isValidSubscribeRole(Role role) {
        return role != null && !roleBlacklist.contains(role.getName());
    }

    private Role getRole(Guild server, String subscribeTo) {
        val roleList = server.getRolesByName(subscribeTo, true);
        return roleList.isEmpty() ? null : roleList.get(0);
    }
}

package com.nincraft.ninbot.command;

import com.nincraft.ninbot.util.MessageSenderHelper;
import com.nincraft.ninbot.util.Reference;
import lombok.extern.log4j.Log4j2;
import lombok.val;
import net.dv8tion.jda.core.entities.Guild;
import net.dv8tion.jda.core.entities.Role;
import net.dv8tion.jda.core.events.message.MessageReceivedEvent;

import java.util.List;

@Log4j2
public class SubscribeCommand extends AbstractCommand {

    private List<String> roleBlacklist;

    public SubscribeCommand() {
        roleBlacklist = Reference.getRoleBlacklist();
        commandLength = 3;
        commandDescription = "Subscribes you to a game for game gathering events";
    }

    @Override
    public void execute(MessageReceivedEvent event) {
        log.trace("execute SubscribeCommand: " + event);
        val channel = event.getChannel();
        val server = event.getGuild();
        val content = event.getMessage().getContent();
        if (isCommandLengthCorrect(content)) {
            val subscribeTo = content.split(" ")[2];
            val role = getRole(server, subscribeTo);
            if (isValidSubscribeRole(role)) {
                MessageSenderHelper.sendMessage(channel, "Subscribing %s to %s", event.getAuthor().getName(), subscribeTo);
                server.getController().addRolesToMember(event.getMember(), role).queue();
            } else {
                MessageSenderHelper.sendMessage(channel, "Could not find the role \"%s\", contact an admin to create the role", subscribeTo);
            }
        } else {
            MessageSenderHelper.sendMessage(channel, "Add a game you want to subscribe to. Check what you can subscribe to using '@Ninbot list'");
        }
    }

    private boolean isValidSubscribeRole(Role role) {
        return role != null && !roleBlacklist.contains(role.getName());
    }

    private Role getRole(Guild server, String subscribeTo) {
        val roleList = server.getRolesByName(subscribeTo, true);
        return roleList.isEmpty() ? null : roleList.get(0);
    }
}

Update subscribe command messages