mirror of https://github.com/tycrek/ass
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50 lines
1.7 KiB
50 lines
1.7 KiB
import fs from 'fs-extra';
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import cryptoRandomString from 'crypto-random-string';
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import { randomBytes, getRandomValues } from 'crypto';
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import { path } from '@tycrek/joint';
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type Length = { length: number, gfyLength?: number };
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// todo: load gfy length from config file
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const MIN_LENGTH_GFY = 2;
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/**
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* Random generator
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*/
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export const random = ({ length }: Length) => cryptoRandomString({ length, type: 'alphanumeric' });
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/**
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* Timestamp generator
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*/
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export const timestamp = () => `${Date.now()}`;
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/**
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* Charset generator
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*/
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export const charset = ({ length, charset }: { length: number, charset: string[] }): string =>
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[...randomBytes(length)].map((byte) => charset[Number(byte) % charset.length]).join('').slice(1).concat(charset[0]);
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/**
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* ZWS generator
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*/
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export const zws = ({ length }: Length) => charset({ length, charset: ['\u200B', '\u200C', '\u200D', '\u2060'] });
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/**
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* Gfycat generator
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*/
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export const gfycat = ({ gfyLength }: Length) => {
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const count = gfyLength ?? MIN_LENGTH_GFY;
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const getWord = (list: string[], delim = '') =>
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list[Math.floor(Math.random() * list.length)].concat(delim);
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const adjectives = fs.readFileSync(path.join('./common/gfycat/adjectives.txt')).toString().split('\n');
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const animals = fs.readFileSync(path.join('./common/gfycat/animals.txt')).toString().split('\n');
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let gfycat = '';
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for (let i = 0; i < (count < MIN_LENGTH_GFY ? MIN_LENGTH_GFY : count); i++)
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gfycat += getWord(adjectives, '-');
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return gfycat.concat(getWord(animals));
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};
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export const nanoid = (size = 21) => getRandomValues(new Uint8Array(size)).reduce(((t, e) => t += (e &= 63) < 36 ? e.toString(36) : e < 62 ? (e - 26).toString(36).toUpperCase() : e > 62 ? "-" : "_"), ""); |