Kunskapsbotten

const fs = require("fs");

const Discord = require("discord.js");
const discord = new Discord.Client();

const secret = JSON.parse(fs.readFileSync("secret.json"));

// TODO: Embed menu api

const PREFIX = "kp!";
const COLOR = 0x2c9ff7;
const MENU_LIFETIME = 4;

let menus = [];

class Menu {
    constructor() {

    }
}

class PageMenu {
    constructor(user) {
        this.user = user;
    }
}

const roles = {
    "432939088711254037": { // Moderator
        commands: ["help", "eval"]
    },
    "431418564755456000": { // @everyone
        commands: ["help"]
    }
};

const commands = {
    "help": {
        usage: "help (<command>)",
        description: "Shows a list of all commands and tells you more information about a specific command",
        use: function(args, message) {
            if (args.length === 0) {
                message.channel.send(new Discord.RichEmbed({
                    title: "Kunskapsbotten Help",
                    color: COLOR,
                    fields: [
                        {
                            name: "Info",
                            value: "Kunskapsbotten är en bot."
                        },
                        {
                            name: "Användning",
                            value: "Använd pilknapparna för att navigera menyer som denna.\n:1234: Knappen låter dig hoppa till ett specifierat sidnummer.\n:eject: Knappen stänger menyn"
                        }
                    ],
                    footer: {
                        text: "Sida 1 av mom gay"
                    }
                })).then(async function(message) {
                    await message.react("⏮");
                    await message.react("⬅");
                    await message.react("➡");
                    await message.react("⏭");
                    await message.react("🔢");
                    await message.react("⏏");
                });
            } else if (args[0].toLowerCase() in commands) {
                let command = args[0].toLowerCase();
                message.channel.send(new Discord.RichEmbed({
                    title: command,
                    color: COLOR,
                    description: commands[command].description,
                    fields: [
                        {
                            name: "Använding: " + commands[command].usage,
                            value: ""
                        }
                    ],
                    footer: {
                        text: "Kategori: Info"
                    }
                }));
            }
            return true;
        }
    },
    "eval": {
        usage: "eval <javascript>",
        description: "Run a piece of code on the server.",
        use: function(args, message) {
            if (args.length === 0) {
                return false;
            } else {
                let result;
                try {
                    result = eval(args.join(" "));
                } catch(e) {
                    message.channel.send(e.toString());
                    return true;
                }
                // Idk if this is equivalent to just JSON.stringify lol.
                if (typeof result == "undefined") {
                    message.channel.send("`undefined`");
                } else if (typeof result == "number") {
                    message.channel.send("`" + result + "`");
                } else if (typeof result == "string") {
                    message.channel.send("`\"" + result + "\"`");
                } else if (Array.isArray(result)) {
                    message.channel.send("`" + JSON.stringify(result) + "`");
                } else {
                    message.channel.send("`" + result.toString() + "`");
                }
                return true;
            }
        }
    }
};

discord.on("ready", function() {
    console.log("Ready");
});

discord.on("message", function(message) {
    if (message.author.bot) {
        return;
    }

    if (message.content.startsWith(PREFIX)) {
        let content = message.content.slice(PREFIX.length).split(" ");
        let command = content[0].toLowerCase();
        if (command in commands) {
            let canUse = false;
            let rolesArray = message.member.roles.array();
            let permission = message.member.roles.some(function(role) {
                return (role.id in roles) && roles[role.id].commands.includes(command);
            });

            if (permission) {
                let result = commands[command].use(content.slice(1), message);
                if (!result) {
                    message.channel.send("**:x: " + command + " usage:** `" + commands[command].usage + "`");
                }
            } else {
                message.channel.send(":x: You don't have permission to use this command!");
            }
        }
        // Don't send an error message if the command doesn't exist.
    }
});
discord.on("messageReactionAdd", function(reaction, user) {

});

discord.login(secret.token);