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Diffstat (limited to 'rtc/src/util/Snowflake.ts')
-rw-r--r-- | rtc/src/util/Snowflake.ts | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/rtc/src/util/Snowflake.ts b/rtc/src/util/Snowflake.ts deleted file mode 100644 index 1d725710..00000000 --- a/rtc/src/util/Snowflake.ts +++ /dev/null @@ -1,127 +0,0 @@ -// @ts-nocheck -import cluster from "cluster"; - -// https://github.com/discordjs/discord.js/blob/master/src/util/Snowflake.js -// Apache License Version 2.0 Copyright 2015 - 2021 Amish Shah -("use strict"); - -// Discord epoch (2015-01-01T00:00:00.000Z) - -/** - * A container for useful snowflake-related methods. - */ -export class Snowflake { - static readonly EPOCH = 1420070400000; - static INCREMENT = 0n; // max 4095 - static processId = BigInt(process.pid % 31); // max 31 - static workerId = BigInt((cluster.worker?.id || 0) % 31); // max 31 - - constructor() { - throw new Error(`The ${this.constructor.name} class may not be instantiated.`); - } - - /** - * A Twitter snowflake, except the epoch is 2015-01-01T00:00:00.000Z - * ``` - * If we have a snowflake '266241948824764416' we can represent it as binary: - * - * 64 22 17 12 0 - * 000000111011000111100001101001000101000000 00001 00000 000000000000 - * number of ms since Discord epoch worker pid increment - * ``` - * @typedef {string} Snowflake - */ - - /** - * Transforms a snowflake from a decimal string to a bit string. - * @param {Snowflake} num Snowflake to be transformed - * @returns {string} - * @private - */ - static idToBinary(num) { - let bin = ""; - let high = parseInt(num.slice(0, -10)) || 0; - let low = parseInt(num.slice(-10)); - while (low > 0 || high > 0) { - bin = String(low & 1) + bin; - low = Math.floor(low / 2); - if (high > 0) { - low += 5000000000 * (high % 2); - high = Math.floor(high / 2); - } - } - return bin; - } - - /** - * Transforms a snowflake from a bit string to a decimal string. - * @param {string} num Bit string to be transformed - * @returns {Snowflake} - * @private - */ - static binaryToID(num) { - let dec = ""; - - while (num.length > 50) { - const high = parseInt(num.slice(0, -32), 2); - const low = parseInt((high % 10).toString(2) + num.slice(-32), 2); - - dec = (low % 10).toString() + dec; - num = - Math.floor(high / 10).toString(2) + - Math.floor(low / 10) - .toString(2) - .padStart(32, "0"); - } - - num = parseInt(num, 2); - while (num > 0) { - dec = (num % 10).toString() + dec; - num = Math.floor(num / 10); - } - - return dec; - } - - static generate() { - var time = BigInt(Date.now() - Snowflake.EPOCH) << 22n; - var worker = Snowflake.workerId << 17n; - var process = Snowflake.processId << 12n; - var increment = Snowflake.INCREMENT++; - return (time | worker | process | increment).toString(); - } - - /** - * A deconstructed snowflake. - * @typedef {Object} DeconstructedSnowflake - * @property {number} timestamp Timestamp the snowflake was created - * @property {Date} date Date the snowflake was created - * @property {number} workerID Worker ID in the snowflake - * @property {number} processID Process ID in the snowflake - * @property {number} increment Increment in the snowflake - * @property {string} binary Binary representation of the snowflake - */ - - /** - * Deconstructs a Discord snowflake. - * @param {Snowflake} snowflake Snowflake to deconstruct - * @returns {DeconstructedSnowflake} Deconstructed snowflake - */ - static deconstruct(snowflake) { - const BINARY = Snowflake.idToBinary(snowflake).toString(2).padStart(64, "0"); - const res = { - timestamp: parseInt(BINARY.substring(0, 42), 2) + Snowflake.EPOCH, - workerID: parseInt(BINARY.substring(42, 47), 2), - processID: parseInt(BINARY.substring(47, 52), 2), - increment: parseInt(BINARY.substring(52, 64), 2), - binary: BINARY, - }; - Object.defineProperty(res, "date", { - get: function get() { - return new Date(this.timestamp); - }, - enumerable: true, - }); - return res; - } -} |