const { Command } = require('klasa');
const yt = require('ytdl-core');
const search = require('youtube-search');

module.exports = class extends Command {

    constructor(...args) {
        super(...args, {
            name: 'play',
            enabled: true,
            runIn: ['text'],
            cooldown: 0,
            aliases: [],
            permLevel: 0,
            botPerms: ['CONNECT', 'SPEAK', 'SEND_MESSAGES', 'EMBED_LINKS'],
            requiredSettings: [],
            description: 'Plays the audio of a YouTube video.',
            quotedStringSupport: false,
            usage: '<search:string>',
            usageDelim: undefined
        });
    }

    async run(msg, [searchString]) {
      if(!msg.member.voiceChannel)return msg.channel.send('You must be in a voice channel to use music commands.').catch(console.error);

      const options = {
        maxResults: 1,
        type: 'video',
        key: 'AIzaSyBp0nhmScKPAIy7BfS4pp4SbmdvB5lZn04'
      };

      search(searchString, options, (err, results) => {
        if(err) return console.log(err);
        if(results.length === 0)return message.channel.send('No results found.').catch(console.error);
        if(!this.client.music[msg.guild.id])this.client.music[msg.guild.id] = {queue: [], loop: false};
        let video = results[0];
        video.requester = msg.author.tag;
        if(!this.client.music[msg.guild.id].nowPlaying){
          playVideo(this.client, msg, video);
        } else {
          this.client.music[msg.guild.id].queue.push(video);
        }
        const embed = new this.client.methods.Embed();
        embed.setTitle(video.title);
        embed.setURL(video.link);
        embed.setDescription(video.description);
        embed.addField('Channel:', video.channelTitle);
        embed.setThumbnail(video.thumbnails.default.url);
        embed.setFooter('Requested by ' + video.requester);
        embed.setColor('RANDOM');
        msg.channel.send(embed).catch(console.error);
      });

    }

    playVideo = async function(client, msg, video) {
      const connection = await msg.member.voiceChannel.join().catch(console.error);
      client.music[msg.guild.id].dispatcher = connection.playStream(yt(video.link, { audioonly: true }), { passes: 1 });
      client.music[msg.guild.id].nowPlaying = video;

      client.music[msg.guild.id].dispatcher.on('end', () => {
        if(client.music[msg.guild.id].loop)client.music[msg.guild.id].queue.push(client.music[msg.guild.id].nowPlaying);
        if(client.music[msg.guild.id].queue.length > 0)return playVideo(client, msg, client.music[msg.guild.id].queue.shift());
        connection.disconnect();
        delete client.music[msg.guild.id];
      });
    }

    async init() {
      if(!this.client.music)this.client.music = {};
    }

};