Util.js

const { ReactionCollector } = require("../");
/**
 * Utils class
 */
module.exports = class Utils {
    static reactionMenu(message, pages = [], options = {}) {
        const {agree = false, mapFunc = (x) => x, fast = false} = options;
        const getMessage = (content) => {
            const obj = { content: "", embed: {} };
            switch (typeof content) {
            case "string":
                return { content };
            case "object":
                if (content.title || content.type ||
                    content.description || content.url ||
                    content.timestamp || content.color ||
                    content.footer || content.image ||
                    content.thumbnail || content.video ||
                    content.provider || content.author ||
                    content.fields) obj.embed = content;
                if (content.content) obj.content = content.content;
                if (content.embed) obj.embed = content.embed;
                return obj;
            }
        };
        return new Promise(async (resolve) => {
            const contents = pages.map(mapFunc);
            const msg = await message.channel.createMessage(getMessage(contents[0]));
            let page = 0;
            if (message.channel.guild && !message.channel.permissionsOf(message._client.user.id).has("addReactions")) return resolve([pages[0], 0]);
            if (contents.length <= 1) return resolve([pages[0], 0]);
            const collector = new ReactionCollector(msg, (emoji, userID) => ["◀", "▶", "⏹"].concat(agree ? "✅" : [], fast ? ["⏮", "⏭"] : []).includes(emoji.name) && userID === message.author.id);
            const edit = () => msg.edit(getMessage(contents[page]));
            collector.on("collect", (emoji) => {
                if (emoji.name === "◀") {
                    if (page === 0) return;
                    page--;
                    edit();
                }
                if (emoji.name === "▶") {
                    if (page === contents.length - 1) return;
                    page++;
                    edit();
                }
                if (agree && emoji.name === "✅") {
                    collector.stop();
                    return resolve([pages[page], page]);
                }
                if (emoji.name === "⏹") {
                    collector.stop();
                    return resolve([]);
                }
                if (fast && emoji.name === "⏮") {
                    if (page === 0) return;
                    page = 0;
                    edit();
                }
                if (fast && emoji.name === "⏭") {
                    if (page === pages.length - 1) return;
                    page = pages.length - 1;
                    edit();
                }
            });
            collector.on("remove", (emoji) => {
                if (emoji.name === "◀") {
                    if (page === 0) return;
                    page--;
                    edit();
                }
                if (emoji.name === "▶") {
                    if (page === contents.length - 1) return;
                    page++;
                    edit();
                }
                if (fast && emoji.name === "⏮") {
                    if (page === 0) return;
                    page = 0;
                    edit();
                }
                if (fast && emoji.name === "⏭") {
                    if (page === pages.length - 1) return;
                    page = pages.length - 1;
                    edit();
                }
            });
            collector.on("end", () => {
                msg.removeReactions().catch(() => {});
            });
            if (fast) await msg.addReaction("⏮");
            await msg.addReaction("◀");
            if (agree) await msg.addReaction("✅");
            await msg.addReaction("▶");
            if (fast) await msg.addReaction("⏭");
            await msg.addReaction("⏹");
        });
    }
    static get colors() {
        return {
            "&0": 0x000000,
            "&1": 0x0000AA,
            "&2": 0x00AA00,
            "&3": 0x00AAAA,
            "&4": 0xAA0000,
            "&5": 0xAA00AA,
            "&6": 0xFFAA00,
            "&7": 0xAAAAAA,
            "&8": 0x555555,
            "&a": 0x55FF55,
            "&b": 0x55FFFF,
            "&c": 0xFF5555,
            "&d": 0xFF55FF,
            "&e": 0xFFFF55,
            "&f": 0xFFFFFF
        };
    }
    static declOfNum (number, titles) {
        const n = Math.abs(number) % 100;
        const n1 = n % 10;
        if (n > 10 && n < 20) { return titles[2]; }
        if (n1 > 1 && n1 < 5) { return titles[1]; }
        if (n1 === 1) { return titles[0]; }
        return titles[2];
    }
    static timeObj (milliseconds) {
        let days, hours, minutes, seconds;
        seconds = Math.floor(milliseconds / 1000);
        minutes = Math.floor(seconds / 60);
        seconds = seconds % 60;
        hours = Math.floor(minutes / 60);
        minutes = minutes % 60;
        days = Math.floor(hours / 24);
        hours = hours % 24;
        return {
            days,
            hours,
            minutes,
            seconds
        };
    }
    static applyDescription (array, { mapFunc = (x) => x, separator = ", " }) {
        do {
            array.pop();
        } while (array.map(mapFunc).join(separator).length > 2048);
        return array.map(mapFunc).join(separator);
    }
};