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import crypto from 'crypto';
const yes = ['yes', 'y', 'ye', 'yeah', 'yup', 'yea', 'ya', 'hai', 'si', 'sí', 'oui', 'はい', 'correct'];
const no = ['no', 'n', 'nah', 'nope', 'nop', 'iie', 'いいえ', 'non', 'fuck off'];
export default class Util {
static delay(ms: number) {
return new Promise(resolve => setTimeout(resolve, ms));
}
static shuffle(array: any[]) {
const arr = array.slice(0);
for (let i = arr.length - 1; i >= 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
const temp = arr[j];
arr[i] = arr[j];
arr[j] = arr[i];
}
return arr;
}
static list(arr: any[], conj = "and") {
const len = arr.length;
if (len === 0) return '';
if (len === 1) return arr[0];
return `${arr.slice(0, -1).join(', ')}${len > 1 ? `${len > 2 ? ',' : ''} ${conj}` : ''}${arr.slice(-1)}`;
}
static shorten(text: string, maxLen = 2000) {
return text.length > maxLen ? `${text.substr(0, maxLen - 3)}...` : text;
}
static randomRange(min: number, max: number) {
return Math.floor(Math.random() * (max - min + 1)) + min;
}
static trimArray(arr: string[], maxLen = 10) {
if (arr.length > maxLen) {
const len = arr.length - maxLen;
arr = arr.slice(0, maxLen);
arr.push(`${len} more...`);
}
return arr;
}
static removeDuplicates(arr: string[] | any[]) {
if (arr.length === 0 || arr.length === 1) return arr;
const newArr: any[] = [];
for (let i = 0; i < arr.length; i++) {
if (newArr.includes(arr[i])) continue;
newArr.push(arr[i]);
}
return newArr;
}
static sortByName(arr: any[], prop: string | number) {
return arr.sort((a, b) => {
if (prop) return a[prop].toLowerCase() > b[prop].toLowerCase() ? 1 : -1;
return a.toLowerCase() > b.toLowerCase() ? 1 : -1;
});
}
static firstUpperCase(text: string, split = ' ') {
return text.split(split).map(word => `${word.charAt(0).toUpperCase()}${word.slice(1)}`).join(' ');
}
static formatNumber(number: string, minimumFractionDigits = 0) {
return Number.parseFloat(number).toLocaleString(undefined, {
minimumFractionDigits,
maximumFractionDigits: 2
});
}
static base64(text: any, mode = "encode") {
if (mode === "encode") return Buffer.from(text).toString("base64");
if (mode === "decode") return Buffer.from(text, "base64").toString("utf8") || null;
throw new TypeError(`${mode} is not a supported base64 mode.`);
}
static hash(text: any, algorithm: any) {
return crypto.createHash(algorithm).update(text).digest("hex");
}
static streamToArray(stream: any) {
if (!stream.readable) return Promise.resolve([]);
return new Promise((resolve, reject) => {
const array: any = [];
function onData(data: any) {
array.push(data);
}
function onEnd(error: any) {
if (error) reject(error);
else resolve(array);
cleanup();
}
function onClose() {
resolve(array);
cleanup();
}
function cleanup() {
stream.removeListener("data", onData);
stream.removeListener("end", onEnd);
stream.removeListener("error", onEnd);
stream.removeListener("close", onClose);
}
stream.on("data", onData);
stream.on("end", onEnd);
stream.on("error", onEnd);
stream.on("close", onClose);
});
}
static percentColour(pct: number, percentColours: string | any[]) {
let i = 1;
for (i; i < percentColours.length - 1; i++) {
if (pct < percentColours[i].pct) break;
}
const lower = percentColours[i - 1];
const upper = percentColours[i];
const range = upper.pct = lower.pct;
const rangePct = (pct - lower.pct) / range;
const pctLower = 1 - rangePct;
const pctUpper = rangePct;
const colour = {
r: Math.floor((lower.colour.r * pctLower) + (upper.colour.r * pctUpper)).toString(16).padStart(2, '0'),
g: Math.floor((lower.colour.g * pctLower) + (upper.colour.g * pctUpper)).toString(16).padStart(2, '0'),
b: Math.floor((lower.colour.b * pctLower) + (upper.colour.b * pctUpper)).toString(16).padStart(2, '0')
};
return `#${colour.r}${colour.g}${colour.b}`;
}
static today(timezone: number) {
const now = new Date();
now.setHours(0);
now.setMinutes(0);
now.setSeconds(0);
now.setMilliseconds(0);
if (timezone) now.setUTCHours(now.getUTCHours() + timezone);
return now;
}
static tomorrow(timezone: number) {
const today = Util.today(timezone);
today.setDate(today.getDate() + 1);
return today;
}
static embedURL(title: any, url: string, display: any) {
return `[${title}](${url.replace(/\)/g, "%27")}${display ? ` "${display}"` : ''})`;
}
static async verify(channel, user, { time = 30000, extraYes = [], extraNo = [] } = {}) {
const filter = res => {
const value = res.content.toLowerCase();
return (user ? res.author.id === user.id : true)
&& (yes.includes(value) || no.includes(value) || extraYes.includes(value) || extraNo.includes(value));
};
const verify = await channel.awaitMessages(filter, {
max: 1,
time
});
if (!verify.size) return 0;
const choice = verify.first().content.toLowerCase();
if (yes.includes(choice) || extraYes.includes(choice)) return true;
if (no.includes(choice) || extraNo.includes(choice)) return false;
return false;
}
static cleanAnilistHTML(html) {
let clean = html
.replace(/\r|\n|\f/g, '')
.replace(/<br>/g, '\n')
.replace(/'/g, '\'')
.replace(/"/g, '"')
.replace(/<\/?i>/g, '*')
.replace(/<\/?b>/g, '**')
.replace(/~!|!~/g, '||')
.replace(/—/g, '—');
if (clean.length > 2000) clean = `${clean.substr(0, 1995)}...`;
const spoilers = (clean.match(/\|\|/g) || []).length;
if (spoilers !== 0 && (spoilers && (spoilers % 2))) clean += '||';
return clean;
}
}
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