TravBot-v3/src/commands/fun/thonk.ts

import {Command, NamedCommand} from "../../core";

const letters: {[letter: string]: string[]} = {
    a: "aáàảãạâấầẩẫậăắằẳẵặ".split(""),
    e: "eéèẻẽẹêếềểễệ".split(""),
    i: "iíìỉĩị".split(""),
    o: "oóòỏõọôốồổỗộơớờởỡợ".split(""),
    u: "uúùủũụưứừửữự".split(""),
    y: "yýỳỷỹỵ".split(""),
    d: "dđ".split("")
};

function transform(str: string) {
    let out = "";

    for (const c of str) {
        const token = c.toLowerCase();
        const isUpperCase = token !== c;

        if (token in letters) {
            const set = letters[token];
            const add = set[Math.floor(Math.random() * set.length)];
            out += isUpperCase ? add.toUpperCase() : add;
        } else {
            out += c;
        }
    }

    return out;
}

let phrase = "I have no currently set phrase!";

export default new NamedCommand({
    description: "Transforms your text into ｖｉｅｔｎａｍｅｓｅ.",
    usage: "thonk ([text])",
    async run({message, channel, guild, author, member, client, args}) {
        if (args.length > 0) phrase = args.join(" ");
        channel.send(transform(phrase));
    }
});