playCommand.java

package me.music.bot;

import me.music.bot.music.PlayerManager;
import net.dv8tion.jda.api.Permission;
import net.dv8tion.jda.api.entities.GuildVoiceState;
import net.dv8tion.jda.api.entities.Member;
import net.dv8tion.jda.api.entities.TextChannel;
import net.dv8tion.jda.api.entities.VoiceChannel;
import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
import net.dv8tion.jda.api.hooks.ListenerAdapter;
import net.dv8tion.jda.api.managers.AudioManager;

public class playCommand extends ListenerAdapter {
    public void onMessageReceived(MessageReceivedEvent event){
        String[] args = event.getMessage().getContentRaw().split("\\s+");

        if (args[0].equalsIgnoreCase(";play")){
            TextChannel channel = event.getTextChannel();
            AudioManager audioManager = event.getGuild().getAudioManager();


            GuildVoiceState memberVoiceState = event.getMember().getVoiceState();

            if (!memberVoiceState.inVoiceChannel()) {
                channel.sendMessage("Najpierw dołącz na kanał głosowy!").queue();
                return;
            }

            VoiceChannel voiceChannel = memberVoiceState.getChannel();
            Member selfMember = event.getGuild().getSelfMember();

            if (!selfMember.hasPermission(voiceChannel, Permission.VOICE_CONNECT)) {
                channel.sendMessage("Nie posiadam permisji aby dołączyć na twój kanał głosowy!").queue();
                return;
            }

            audioManager.openAudioConnection(voiceChannel);
            event.getMessage().addReaction("yes:633263218957090836").queue();

            PlayerManager manager = PlayerManager.getInstance();
            manager.loadAndPlay(channel, "https://www.youtube.com/watch?v=dEbnZgBYxqE");
            manager.getGuildMusicManager(event.getGuild()).player.setVolume(10);
        }
    }
}