utils: 提取公共模块
undefined
4 years ago
parent
64fec8a407
commit
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import path, { sep } from 'path';
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import fs from 'fs';
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import { Duplex } from 'stream';
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import { ObjectID } from 'bson';
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import { isMoment } from 'moment';
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import type { Moment } from 'moment-timezone';
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declare global {
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interface StringConstructor {
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random: (digit?: number) => string;
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}
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interface String {
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format: (...args: Array<any>) => string;
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formatFromArray: (args: any[]) => string;
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rawformat: (object: any) => string;
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}
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interface ArrayConstructor {
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isDiff: (a: any[], b: any[]) => boolean;
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}
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interface Date {
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format: (fmt?: string) => string;
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}
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interface Math {
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sum: (...args: Array<number[] | number>) => number;
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}
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interface SetConstructor {
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isSuperset: (set: Set<any>, subset: Set<any>) => boolean;
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intersection: <T>(setA: Set<T>, setB: Set<T>) => Set<T>;
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union: <T>(setA: Set<T>, setB: Set<T>) => Set<T>;
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}
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}
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const dict = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890';
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String.random = function random(digit = 32) {
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let str = '';
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for (let i = 1; i <= digit; i++) str += dict[Math.floor(Math.random() * 62)];
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return str;
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};
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String.prototype.format = function formatStr(...args) {
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let result = this;
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if (args.length > 0) {
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if (args.length === 1 && typeof (args[0]) === 'object') {
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for (const key in args) {
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if (args[key] !== undefined) {
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const reg = new RegExp(`(\\{${key}\\})`, 'g');
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result = result.replace(reg, args[key]);
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}
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}
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} else return this.formatFromArray(args);
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}
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return result;
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};
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String.prototype.formatFromArray = function formatStr(args) {
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let result = this;
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for (let i = 0; i < args.length; i++) {
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if (args[i] !== undefined) {
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const reg = new RegExp(`(\\{)${i}(\\})`, 'g');
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result = result.replace(reg, args[i]);
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}
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}
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return result;
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};
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String.prototype.rawformat = function rawFormat(object) {
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const res = this.split('{@}');
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return [res[0], object, res[1]].join();
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};
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Array.isDiff = function isDiff(a, b) {
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if (a.length !== b.length) return true;
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a.sort();
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b.sort();
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for (const i in a) {
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if (a[i] !== b[i]) return true;
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}
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return false;
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};
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Date.prototype.format = function formatDate(fmt = '%Y-%m-%d %H:%M:%S') {
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let m = this.getMonth() + 1;
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if (m < 10) m = `0${m}`;
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let d = this.getDate();
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if (d < 10) d = `0${d}`;
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let H = this.getHours();
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if (H < 10) H = `0${H}`;
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let M = this.getMinutes();
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if (M < 10) M = `0${M}`;
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let S = this.getSeconds();
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if (S < 10) S = `0${S}`;
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return fmt
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.replace('%Y', this.getFullYear())
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.replace('%m', m)
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.replace('%d', d)
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.replace('%H', H)
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.replace('%M', M)
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.replace('%S', S);
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};
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Math.sum = function sum(...args) {
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let s = 0;
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for (const i of args) {
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if (i instanceof Array) {
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for (const j of i) {
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s += j;
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}
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} else s += i;
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}
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return s;
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};
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Set.isSuperset = function isSuperset(set, subset) {
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for (const elem of subset) {
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if (!set.has(elem)) return false;
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}
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return true;
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};
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Set.union = function Union<T>(setA: Set<T>, setB: Set<T>) {
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const union = new Set(setA);
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for (const elem of setB) union.add(elem);
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return union;
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};
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Set.intersection = function Intersection<T>(setA: Set<T>, setB: Set<T>): Set<T> {
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const intersection = new Set();
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for (const elem of setB) {
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if (setA.has(elem)) intersection.add(elem);
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}
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// @ts-ignore
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return intersection;
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};
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export function folderSize(folderPath: string) {
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// eslint-disable-next-line @typescript-eslint/no-shadow
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let size = 0;
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const _next = function a(p: string) {
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if (p) {
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const stats = fs.statSync(p);
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if (!stats.isDirectory() || stats.isSymbolicLink()) {
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if (!stats.isSymbolicLink()) size += stats.size;
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} else {
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size += stats.size;
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const files = fs.readdirSync(p);
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if (Array.isArray(files)) {
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files.forEach((file) => {
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_next(path.join(p, file));
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});
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}
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}
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}
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};
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_next(folderPath);
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return size;
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}
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const TIME_RE = /^([0-9]+(?:\.[0-9]*)?)([mu]?)s?$/i;
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const TIME_UNITS = { '': 1000, m: 1, u: 0.001 };
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const MEMORY_RE = /^([0-9]+(?:\.[0-9]*)?)([kmg])b?$/i;
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const MEMORY_UNITS = { k: 1 / 1024, m: 1, g: 1024 };
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export function parseTimeMS(str: string) {
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const match = TIME_RE.exec(str);
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if (!match) throw new Error(`${str} error parsing time`);
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return Math.floor(parseFloat(match[1]) * TIME_UNITS[match[2]]);
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}
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export function parseMemoryMB(str: string) {
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const match = MEMORY_RE.exec(str);
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if (!match) throw new Error(`${str} error parsing memory`);
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return Math.ceil(parseFloat(match[1]) * MEMORY_UNITS[match[2]]);
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}
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export function isClass(obj: any, strict = false) {
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if (typeof obj !== 'function') return false;
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const str = obj.toString();
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if (obj.prototype === undefined) return false;
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if (obj.prototype.constructor !== obj) return false;
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if (str.slice(0, 5) === 'class') return true;
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if (Object.getOwnPropertyNames(obj.prototype).length >= 2) return true;
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if (/^function\s+\(|^function\s+anonymous\(/.test(str)) return false;
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if (strict && /^function\s+[A-Z]/.test(str)) return true;
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if (/\b\(this\b|\bthis[.[]\b/.test(str)) {
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if (!strict || /classCallCheck\(this/.test(str)) return true;
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return /^function\sdefault_\d+\s*\(/.test(str);
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}
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return false;
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}
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export function streamToBuffer(stream): Promise<Buffer> {
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return new Promise((resolve, reject) => {
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const buffers = [];
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stream.on('error', reject);
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stream.on('data', (data) => buffers.push(data));
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stream.on('end', () => resolve(Buffer.concat(buffers)));
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});
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}
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export function bufferToStream(buffer: Buffer): NodeJS.ReadableStream {
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const stream = new Duplex();
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stream.push(buffer);
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stream.push(null);
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return stream;
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}
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export function sleep(timeout: number) {
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return new Promise((resolve) => {
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setTimeout(resolve, timeout);
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});
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}
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function deepen(modifyString: (source: string) => string) {
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function modifyObject<T>(source: T): T {
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if (typeof source !== 'object' || !source) return source;
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if (Array.isArray(source)) return source.map(modifyObject) as any;
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const result = {} as T;
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for (const key in source) {
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result[modifyString(key)] = modifyObject(source[key]);
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}
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return result;
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}
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return function t<T>(source: T): T {
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if (typeof source === 'string') return modifyString(source) as any;
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return modifyObject(source);
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};
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}
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export function noop() { }
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export const camelCase = deepen((source) => source.replace(/[_-][a-z]/g, (str) => str.slice(1).toUpperCase()));
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export const paramCase = deepen((source) => source.replace(/_/g, '-').replace(/(?<!^)[A-Z]/g, (str) => `-${str.toLowerCase()}`));
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export const snakeCase = deepen((source) => source.replace(/-/g, '_').replace(/(?<!^)[A-Z]/g, (str) => `_${str.toLowerCase()}`));
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export namespace Time {
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export const second = 1000;
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export const minute = second * 60;
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export const hour = minute * 60;
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export const day = hour * 24;
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export const week = day * 7;
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export function formatTimeShort(ms: number) {
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const abs = Math.abs(ms);
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if (abs >= day - hour / 2) return `${Math.round(ms / day)}d`;
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if (abs >= hour - minute / 2) return `${Math.round(ms / hour)}h`;
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if (abs >= minute - second / 2) return `${Math.round(ms / minute)}m`;
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if (abs >= second) return `${Math.round(ms / second)}s`;
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return `${ms}ms`;
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}
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export function getObjectID(timestamp: string | Date | Moment) {
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let _timestamp: number;
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if (typeof timestamp === 'string') _timestamp = new Date(timestamp).getTime();
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else if (isMoment(timestamp)) _timestamp = timestamp.toDate().getTime();
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else _timestamp = timestamp.getTime();
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const hexSeconds = Math.floor(_timestamp / 1000).toString(16);
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const constructedObjectId = new ObjectID(`${hexSeconds}0000000000000000`);
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return constructedObjectId;
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}
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}
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export function errorMessage(err: Error | string) {
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const t = typeof err === 'string' ? err : err.stack;
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const q = t.split('\n');
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for (let i = 0; i < q.length; i++) {
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if (!q[i].startsWith(' at')) continue;
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if (q[i].includes(`${sep}@hydrooj${sep}`)) q[i] = q[i].split(`@hydrooj${sep}`)[1];
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else if (q[i].includes(`${sep}hydrooj${sep}`)) q[i] = `hydrooj${sep}${q[i].split(`hydrooj/${sep}`)[1]}`;
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}
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if (typeof err === 'string') return q.join('\n');
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err.stack = q.join('\n');
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return err;
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}
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export function size(s: number, base = 1) {
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s *= base;
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const unit = 1024;
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const unitNames = ['Bytes', 'KiB', 'MiB', 'GiB', 'TiB', 'PiB', 'EiB', 'ZiB', 'YiB'];
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for (const unitName of unitNames) {
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if (s < unit) return '{0} {1}'.format(Math.round(s * 10) / 10, unitName);
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s /= unit;
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}
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return `${Math.round(s * unit)} ${unitNames[unitNames.length - 1]}`;
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}
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function _digit2(number: number) {
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return number < 10 ? `0${number}` : number.toString();
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}
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export function formatSeconds(_seconds = '0') {
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const seconds = parseInt(_seconds, 10);
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return '{0}:{1}:{2}'.format(
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_digit2(Math.floor(seconds / 3600)),
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_digit2(Math.floor((seconds % 3600) / 60)),
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_digit2(seconds % 60),
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);
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}
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@ -0,0 +1,17 @@
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{
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"name": "@hydrooj/utils",
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"version": "1.0.0",
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"description": "hydrooj utils",
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"main": "package.json",
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"repository": "https://github.com/hydro-dev/Hydro.git",
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"author": "undefined <i@undefined.moe>",
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"license": "AGPL-3.0-only",
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"dependencies": {
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"bson": "^4.2.3",
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"moment": "^2.29.1",
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"systeminformation": "^5.6.10"
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},
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"devDependencies": {
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"moment-timezone": "^0.5.33"
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}
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}
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