package fr.gtalife.botdiscord.music;

import java.util.HashMap;
import java.util.Map;

import com.sedmelluq.discord.lavaplayer.player.AudioLoadResultHandler;
import com.sedmelluq.discord.lavaplayer.player.AudioPlayerManager;
import com.sedmelluq.discord.lavaplayer.player.DefaultAudioPlayerManager;
import com.sedmelluq.discord.lavaplayer.source.AudioSourceManagers;
import com.sedmelluq.discord.lavaplayer.tools.FriendlyException;
import com.sedmelluq.discord.lavaplayer.track.AudioPlaylist;
import com.sedmelluq.discord.lavaplayer.track.AudioTrack;

import net.dv8tion.jda.core.entities.Guild;
import net.dv8tion.jda.core.entities.TextChannel;

public class MusicManager {

	private final AudioPlayerManager manager = new DefaultAudioPlayerManager();
	private final Map<String, MusicPlayer> players = new HashMap<>();

	public MusicManager() {
		AudioSourceManagers.registerRemoteSources(manager);
		AudioSourceManagers.registerLocalSource(manager);
	}

	public synchronized MusicPlayer getPlayer(Guild guild) {
		if(!players.containsKey(guild.getId())) players.put(guild.getId(), new MusicPlayer(manager.createPlayer(), guild));
		return players.get(guild.getId());
	}

	public void loadTrack(final TextChannel channel, final String source) {
		MusicPlayer player = getPlayer(channel.getGuild());

		channel.getGuild().getAudioManager().setSendingHandler(player.getAudioHandler());

		manager.loadItemOrdered(player, source, new AudioLoadResultHandler() {

			@Override
			public void trackLoaded(AudioTrack track) {
				channel.sendMessage("Ajout de la piste "+track.getInfo().title+".").queue();
				player.PlayTrack(track);
			}

			@Override
			public void playlistLoaded(AudioPlaylist playlist) {
				StringBuilder builder = new StringBuilder();
				builder.append("Ajout de la playlist **").append(playlist.getName()).append("**\n");

				for(int i = 0; i < playlist.getTracks().size() && i < 80; i++) {
					AudioTrack track = playlist.getTracks().get(i);
					builder.append("\n  **->** ").append(track.getInfo().title);
					player.PlayTrack(track);
				}

				channel.sendMessage(builder.toString()).queue();
			}

			@Override
			public void noMatches() {
				channel.sendMessage("La piste " + source + "n'a pas été trouvé.").queue();
			}

			@Override
			public void loadFailed(FriendlyException exception) {
				channel.sendMessage("Impossible de jouer la piste (raison:"+ exception.getMessage()+")").queue();
			}
		});
	}
}