const DiscordVoice = require('@discordjs/voice');
const { join } = require('node:path');

console.log(DiscordVoice.generateDependencyReport());

module.exports.playAudio = playAudio;
module.exports.stop = stop;
module.exports.pause = pause;
module.exports.unpause = unpause;

const player = DiscordVoice.createAudioPlayer();

player.on('error', error => {
    console.error('Error:', error.message, 'with track', error.resource.metadata.title);
});

player.on(DiscordVoice.AudioPlayerStatus.Playing, () => {
    console.log('The audio player has started playing!');
});

function playAudio(channel, guildId) {
    joinChannel(channel, guildId);
    const connection = DiscordVoice.getVoiceConnection(guildId);
    let resource = DiscordVoice.createAudioResource(join(__dirname, 'file.mp3'), { inlineVolume: true }); // requires ffmpeg
    //resource.volume.setVolume(0.5); // volume control

    if (!connection) {
        console.log("no connection");
        return;
    }

    player.play(resource);

    player.on('error', error => {
        console.error(`Error: ${error.message} with resource ${error.resource.metadata.title}`);
        player.play(DiscordVoice.getNextResource());
    });

    connection.on(DiscordVoice.VoiceConnectionStatus.Ready, () => {
        console.log('The connection has entered the Ready state - ready to play audio!');
    });

    const subscription = connection.subscribe(player);
    if (!subscription) {
        subscription.unsubscribe();
        console.log("Unsubscribed.");
    }
    if (subscription) {
        // Unsubscribe after 5 seconds (stop playing audio on the voice connection)
        setTimeout(() => subscription.unsubscribe(), 5_000);
    }
}

function joinChannel(channel, guildId) {
    const connection = DiscordVoice.joinVoiceChannel({
        channelId: channel.id,
        guildId: guildId,
        adapterCreator: channel.guild.voiceAdapterCreator,
    });
    if (!connection) {
        console.log("Couldn't join the channel " + channel.name + " in the guild " + guildId + ".");
    } else {
        console.log("Joined the voice channel " + channel.name + " in the guild " + guildId + ".");
    }
}

function stop() {
    player.stop();
}

function pause() {
    player.pause();
}

function unpause() {
    player.unpause();
}