const ytdl = require('ytdl-core');
const { Command } = require('discord.js-commando');
const { MessageEmbed } = require('discord.js');
const Youtube = require('simple-youtube-api');
const { youtubeAPI } = require('../../config.json');
const youtube = new Youtube('AIzaSyB9xJENORzZt-GmOGx4WsNCPgKSIxhJcds');
const emoji = require('emoji-random');

module.exports = class PlayVoice extends Command {
    constructor(client) {
        super(client, {
            name: 'play',
            aliases: ['p'],
            group: 'voice',
            memberName: 'play',
            description: 'Plays the Minecraft soundtrack.',
            guildOnly: true,
            clientPermissions: ['SPEAK', 'CONNECT'],
            examples: ['msb!play', 'msb!p']
        });
    }
    async run(msg) {
        const voiceChannel = msg.member.voice.channel;
        if (!voiceChannel) return msg.say('Join a channel and try again. ' + emoji.random());

        const playlist = await youtube.getPlaylist('https://www.youtube.com/watch?v=05UM-i4PuOY&list=PLxOTV5xn7n1i2HcKtRBthP2loWjrBGAIY').catch(function () {
            return msg.say('There was a problem getting the soundtrack. ' + emoji.random());
        });
        // remove the 10 if you removed the queue limit conditions below
        const videosObj = await playlist.getVideos(24).catch(function () {
            return msg.say(
                'There was a problem getting the soundtrack. ' + emoji.random()
            );
        });
        for (let i = 0; i < videosObj.length; i++) {
            const video = await videosObj[i].fetch();
            // this can be uncommented if you choose to limit the queue
            // if (msg.guild.musicData.queue.length < 10) {
            //
            msg.guild.musicData.queue.push(
                this.constructSongObj(video, voiceChannel)
            );
            // } else {
            //   return msg.say(
            //     `I can't play the full playlist because there will be more than 10 songs in queue`
            //   );
            // }
        }
        if (msg.guild.musicData.isPlaying == false) {
            msg.guild.musicData.isPlaying = true;
            return this.playSong(msg.guild.musicData.queue, msg);
        } else if (msg.guild.musicData.isPlaying == true) {
            return msg.say(
                'Now playing the Minecraft soundtrack. ' + emoji.random()
            );
        }

        var that = this;
        msg.channel
            .awaitMessages(
                function (msg) {
                    return (msg.content > 0 && msg.content < 6) || msg.content === 'exit';
                }, {
                    max: 1,
                    time: 60000,
                    errors: ['time']
                }
            )
            .then(function (response) {
                const videoIndex = parseInt(response.first().content);
                if (response.first().content === 'exit') return songEmbed.delete();
                youtube
                    .getVideoByID(videos[videoIndex - 1].id)
                    .then(function (video) {
                        // // can be uncommented if you don't want the bot to play live streams
                        // if (video.raw.snippet.liveBroadcastContent === 'live') {
                        //   songEmbed.delete();
                        //   return msg.say("I don't support live streams!");
                        // }

                        // // can be uncommented if you don't want the bot to play videos longer than 1 hour
                        // if (video.duration.hours !== 0) {
                        //   songEmbed.delete();
                        //   return msg.say('I cannot play videos longer than 1 hour');
                        // }

                        // // can be uncommented if you don't want to limit the queue
                        // if (msg.guild.musicData.queue.length > 10) {
                        //   songEmbed.delete();
                        //   return msg.say(
                        //     'There are too many songs in the queue already, skip or wait a bit'
                        //   );
                        // }
                        msg.guild.musicData.queue.push(
                            that.constructSongObj(video, voiceChannel)
                        );
                        if (msg.guild.musicData.isPlaying == false) {
                            msg.guild.musicData.isPlaying = true;
                            if (songEmbed) {
                                songEmbed.delete();
                            }
                            that.playSong(msg.guild.musicData.queue, msg);
                        } else if (msg.guild.musicData.isPlaying == true) {
                            if (songEmbed) {
                                songEmbed.delete();
                            }
                            return msg.say('Now playing the Minecraft soundtrack. ' + emoji.random());
                        }
                    })
                    .catch(function () {
                        if (songEmbed) {
                            songEmbed.delete();
                        }
                        return msg.say(
                            'An error has occured when trying to get the video ID from YouTube. ' + emoji.random()
                        );
                    });
            });
    }
    playSong(queue, msg) {
        const classThis = this; // use classThis instead of 'this' because of lexical scope below
        queue[0].voiceChannel
            .join()
            .then(function (connection) {
                const dispatcher = connection
                    .play(
                        ytdl(queue[0].url, {
                            quality: 'highestaudio',
                            highWaterMark: 1024 * 1024 * 10
                        })
                    )
                    .on('start', function () {
                        msg.guild.musicData.songDispatcher = dispatcher;
                        const volume = 100 / 100;
                        msg.guild.musicData.volume = volume;
                        dispatcher.setVolume(msg.guild.musicData.volume);
                        const videoEmbed = new MessageEmbed()
                            .setThumbnail(queue[0].thumbnail)
                            .setColor(0xF97DAE)
                            .addField('Now Playing:', queue[0].title)
                            .addField('Duration:', queue[0].duration);
                        if (queue[1]) videoEmbed.addField('Next Song:', queue[1].title);
                        msg.say(videoEmbed);
                        msg.guild.musicData.nowPlaying = queue[0];
                        return queue.shift();
                    })
                    .on('finish', function () {
                        if (queue.length >= 1) {
                            return classThis.playSong(queue, msg);
                        } else {
                            msg.guild.musicData.isPlaying = false;
                            msg.guild.musicData.nowPlaying = null;
                            msg.guild.musicData.songDispatcher = null;
                            return msg.guild.me.voice.channel.leave();
                        }
                    })
                    .on('error', function (e) {
                        msg.say('Can\'t play soundtrack. ' + emoji.random());
                        console.error(e);
                        msg.guild.musicData.queue.length = 0;
                        msg.guild.musicData.isPlaying = false;
                        msg.guild.musicData.nowPlaying = null;
                        msg.guild.musicData.songDispatcher = null;
                        return msg.guild.me.voice.channel.leave();
                    });
            })
            .catch(function (e) {
                console.error(e);
                return msg.guild.me.voice.channel.leave();
            });
    }
    constructSongObj(video, voiceChannel) {
        let duration = this.formatDuration(video.duration);
        if (duration == '00:00') duration = 'Live Stream';
        return {
            url: `https://www.youtube.com/watch?v=${video.raw.id}`,
            title: video.title,
            duration,
            thumbnail: video.thumbnails.high.url,
            voiceChannel
        };
    }
    // prettier-ignore
    formatDuration(durationObj) {
        const duration = `${durationObj.hours ? (durationObj.hours + ':') : ''}${
      durationObj.minutes ? durationObj.minutes : '00'
    }:${
      (durationObj.seconds < 10)
        ? ('0' + durationObj.seconds)
        : (durationObj.seconds
        ? durationObj.seconds
        : '00')
    }`;
        return duration;
    }
};