galactic-bot/util/Util.js

128 lines
3.5 KiB
JavaScript

const path = require('path');
const fs = require('fs');
const fetch = require('node-fetch');
const { Util: DiscordUtil } = require('discord.js');
const has = (o, k) => Object.prototype.hasOwnProperty.call(o, k);
class Util {
constructor() {
throw new Error("Class may not be instantiated.");
}
static paginate(items, page = 1, pageLength = 10) {
const maxPage = Math.ceil(items.length / pageLength);
if(page < 1) page = 1;
if(page > maxPage) page = maxPage;
const startIndex = (page - 1) * pageLength;
return {
items: items.length > pageLength ? items.slice(startIndex, startIndex + pageLength) : items,
page,
maxPage,
pageLength
};
}
static downloadAsBuffer(source) {
return new Promise((resolve, reject) => {
fetch(source).then((res) => {
if(res.ok) resolve(res.buffer());
else reject(res.statusText);
});
});
}
static readdirRecursive(directory) {
const result = [];
(function read(directory) {
const files = fs.readdirSync(directory);
for(const file of files) {
const filePath = path.join(directory, file);
if(fs.statSync(filePath).isDirectory()) {
read(filePath);
} else {
result.push(filePath);
}
}
}(directory));
return result;
}
static delayFor(ms) {
return new Promise((resolve) => {
setTimeout(resolve, ms);
});
}
static mergeDefault(def, given) {
if (!given) return def;
for (const key in def) {
if (!has(given, key) || given[key] === undefined) {
given[key] = def[key];
} else if (given[key] === Object(given[key])) {
given[key] = Util.mergeDefault(def[key], given[key]);
}
}
return given;
}
//Shard Managing
static fetchRecommendedShards(token, guildsPerShard = 1000) {
if(!token) throw new Error("[util] Token missing.");
return fetch("https://discordapp.com/api/v7/gateway/bot", {
method: 'GET',
headers: { Authorization: `Bot ${token.replace(/^Bot\s*/iu, '')}` }
}).then((res) => {
if (res.ok) return res.json();
throw res;
})
.then((data) => data.shards * (1000 / guildsPerShard));
}
static makePlainError(err) {
return {
name: err.name,
message: err.message,
stack: err.stack
};
}
static escapeMarkdown(text, options) {
return DiscordUtil.escapeMarkdown(text, options);
}
static duration(seconds) {
const { plural } = this;
let s = 0,
m = 0,
h = 0,
d = 0,
w = 0;
s = Math.floor(seconds);
m = Math.floor(s/60);
s %= 60;
h = Math.floor(m/60);
m %= 60;
d = Math.floor(h/24);
h %= 24;
w = Math.floor(d/7);
d %= 7;
return `${w ? `${w} ${plural(w, 'week')} ` : ''}${d ? `${d} ${plural(d, 'day')} ` : ''}${h ? `${h} ${plural(h, 'hour')} ` : ''}${m ? `${m} ${plural(m, 'minute')} ` : ''}${s ? `${s} ${plural(s, 'second')} ` : ''}`.trim();
}
static plural(amt, word) {
if(amt === 1) return word;
return `${word}s`;
}
}
module.exports = Util;