const YouTube = require("simple-youtube-api");
const he = require('he');

module.exports = {
    name: 'playlist',
    usage: '[option]',
    description: 'Save and load queues',
    cooldown: 10,
    async execute(message, args, client, Discord, prefix) {
        const permissions = message.channel.permissionsFor(message.author);
        const serverQueue = client.queue.get(message.guild.id);
        if (message.author.id !== '360363051792203779') {
            if (client.global.db.guilds[message.guild.id].dj) {
                if (!message.member.roles.has(client.global.db.guilds[message.guild.id].djrole)) return message.channel.send(':x: You need the `DJ` role to modify or play the playlist!');
            } else if (!permissions.has('MANAGE_GUILD')) return message.channel.send(':x: You need the `MANAGE_SERVER` permission to modify the playlist!');
        }
        if (client.global.db.guilds[message.guild.id].premium) {
            if (args[1] === 'play') {
                const voiceChannel = message.member.voiceChannel;
                if (!voiceChannel) return message.channel.send(':x: I\'m sorry but you need to be in a voice channel to play music!');
                const permissions = voiceChannel.permissionsFor(message.client.user);
                if (!permissions.has('CONNECT')) {
                    return message.channel.send(':x: I cannot connect to your voice channel, make sure I have the proper permissions!');
                }
                if (!permissions.has('SPEAK')) {
                    return message.channel.send(':x: I cannot speak in your voice channel, make sure I have the proper permissions!');
                }
                let songs;
                if (!voiceChannel) return message.channel.send(':x: I\'m sorry but you need to be in a voice channel to play music!');
                if (args[2]) {
                    if (client.global.db.guilds[args[2]].premium && client.global.db.playlists[args[2]].saved) {
                        songs = client.global.db.playlists[args[2]].songs;
                    } else return message.channel.send(':x: There is no queue saved for this guild!')
                } else {
                    songs = client.global.db.playlists[message.guild.id].songs;
                }
                if (client.global.db.playlists[message.guild.id].saved) {
                    if (!serverQueue) {
                        const construct = {
                            textChannel: message.channel,
                            voiceChannel: message.member.voiceChannel,
                            connection: null,
                            songs: [...songs],
                            volume: client.global.db.guilds[message.guild.id].defaultVolume,
                            playing: true,
                            looping: false
                        };
                        client.queue.set(message.guild.id, construct);
                        message.channel.send(":white_check_mark: Queue set!");
                        try {
                            var connection = await message.member.voiceChannel.join();
                            construct.connection = connection;
                            client.funcs.play(message.guild, construct.songs[0], client, message, 0);
                        } catch (error) {
                            client.queue.delete(message.guild.id);
                            return message.channel.send(`:x: An error occured: ${error}`);
                        }
                    } else {
                        serverQueue.connection.dispatcher.end("queue set");
                        serverQueue.songs = [...client.global.db.playlists[message.guild.id].songs];
                        message.channel.send(":white_check_mark: Queue set!");
                    }
                } else return message.channel.send(':x: There is no queue set for this server!')
            } else if (args[1] === 'save') {
                if (!serverQueue) return message.channel.send(':x: There is nothing playing!');
                client.global.db.playlists[message.guild.id] = {
                    songs: serverQueue.songs,
                    firstSong: serverQueue.songs[0],
                    saved: true,
                };
                message.channel.send(":white_check_mark: Queue saved!");
            } else if (args[1] === 'add') {
                if (client.global.db.playlists[args[2]].saved) {
                    const youtube = new YouTube(client.config.apikey);
                    const searchString = args.slice(2).join(" ");
                    const url = args[2] ? args[2].replace(/<(.+)>/g, "$1") : "";
                    if (!args[2]) return message.channel.send(':x: You need to use a link or search for a song!');
                    try {
                        var video = await youtube.getVideo(url);
                    } catch (error) {
                        try {
                            var videos = await youtube.searchVideos(searchString, 10);
                            let index = 0;
                            const embed = new Discord.RichEmbed()
                                .setTitle("__Song Selection__")
                                .setDescription(`${videos.map(video2 => `**${++index}** ${he.decode(video2.title)} `).join('\n')}`)
                                .setFooter("Please provide a number ranging from 1-10 to select one of the search results.")
                                .setColor("#b50002")
                            message.channel.send(embed);
                            try {
                                var response = await message.channel.awaitMessages(message2 => message2.content > 0 && message2.content < 11, {
                                    maxMatches: 1,
                                    time: 10000,
                                    errors: ['time']
                                });
                            } catch (err) {
                                console.error(err);
                                return message.channel.send(':x: Cancelling video selection');
                            }
                            const videoIndex = parseInt(response.first().content);
                            var video = await youtube.getVideoByID(videos[videoIndex - 1].id);
                        } catch (err) {
                            console.error(err);
                            return message.channel.send(':x: I could not obtain any search results!');
                        }
                    }
                    let song = {
                        id: video.id,
                        title: Discord.Util.escapeMarkdown(video.title),
                        url: `https://www.youtube.com/watch?v=${video.id}`
                    }
                    client.global.db.playlists[message.guild.id].songs.push(song);
                    message.channel.send(`:white_check_mark: ${song.title} added to the playlist!`);
                } else return message.channel.send(':x: There is no playlist saved! Start by using the save option!')
            } else {
                const embed = new Discord.RichEmbed()
                    .setTitle('Options for playlist!')
                    .addField('play', 'Play the guild specific queue.', true)
                    .addField('save', 'Save the currently playing queue. Note that this will overwrite the currently saved queue!', true)
                    .addField('add', 'Add songs to the playlist. Like song selection', true)
                    .setFooter(`how to use: ${prefix}playlist <Option> <Optional option>`)
                    .setAuthor(client.user.username, client.user.displayAvatarURL)
                    .setColor('#b50002')
                return message.channel.send(embed);
            }
        } else return message.channel.send(":x: This is not a premium guild!");
    },
};