const reactions = require('../core/reactions');
const _ = require('lodash');

exports.run = async (client, message, args, level) => {

    let TempPageIndex = 0;
    const queue = client.getQueue(message.guild.id);
    const songsPerPage = 20;
    let pages;
    let pagesSize = Math.ceil(queue.length / 20);

    pages = _.chunk(queue, songsPerPage);
    pages = pages.map((page) => {
        let index = 0;
        let desc = page.map(track => `**${++index}** -  **${track.info.title}** added by: **${track.requester.username}** [\`${client.getYTLive(track.info.length)}\`]`).join("\n");
        TempPageIndex = TempPageIndex + 1;
        console.log(TempPageIndex);
        return {
            embed: {
                color: 0xbe3e99,
                author: {
                    name: `Current queue for ${message.guild.name}`,
                    icon_url: message.guild.iconURL
                },
                description: `Page **${TempPageIndex}** of **${pagesSize}**\n\n${desc}`,
                footer: {
                    text: `There are ${Math.ceil(queue.length - 1)} tracks with a remaining length of [${client.getYTLive(queue.reduce((a, b) => a + b.info.length, 0))}] in the queue.`
                }
            }
        }
    });

    message.channel.send(pages[0])
        .then(async (msg) => {

            await msg.react('⬅');
            await msg.react('➡');
            await msg.react('🇽');
            const collector = msg.createReactionCollector((buttons, user) => user !== client.user);

            let pageIndex = 0;

            collector.on('collect', async (messageReaction) => {

                const notbot = messageReaction.users.filter(clientuser => clientuser !== client.user).first();
                await messageReaction.remove(notbot);
                if (messageReaction.emoji.name === '⬅') {

                    msg.edit(pages[pageIndex--]);

                } else if (messageReaction.emoji.name === '➡') {

                    msg.edit(pages[pageIndex++]);

                } else if (messageReaction.emoji.name === '🇽') {

                    msg.delete(); // Delete the message
                    collector.stop(); // Delete the collector.
                    return;

                }
                if(pageIndex === 0) messageReaction.fetchUsers().then(users => {
                    users.forEach(user => {
                        messageReaction.remove(user);
                    });
                }).catch(console.error);
            })
        }).catch(err => console.log(err));


    function switchPage(reaction) {
        if (reaction.emoji.name == '⬅') {
            if (currentPage === 0) reaction.fetchUsers().then(users => {
                users.forEach(user => {
                    reaction.remove(user);
                });
            }).catch(console.error);
            else {
                //etc.
            }
        } else if (reaction.emoji.name == '➡') {

        } else throw new Error('No valid emoji was catched.')
    }
};

exports.conf = {
    enabled: true,
    guildOnly: false,
    aliases: ["l", "list"],
    permLevel: "Bot Owner"
};

exports.help = {
    name: "list",
    category: "Music",
    description: "Displays the current queue playing on the bot",
    usage: "list"
};