mirror of https://github.com/thaldrin/thaldrin.git
123 lines
4.6 KiB
TypeScript
123 lines
4.6 KiB
TypeScript
/**
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* Copyright (c) 2020-2021 August
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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import { inspect } from 'util';
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import leeks from 'leeks.js';
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// List of colors for the log levels
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const Colors = {
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debug: leeks.hex('#4F7CA3', '[Debug]'),
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error: leeks.hex('#FF2255', '[Error]'),
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warn: leeks.hex('#FFFFC5', '[Warn]'),
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info: leeks.hex('#BCD9FF', '[Info]')
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} as const;
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type LogMessage = string | object | Error | any[] | Date | null | undefined | number | boolean;
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enum LogLevel {
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Info = 'info',
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Warn = 'warn',
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Error = 'error',
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Debug = 'debug'
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}
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export default class Logger {
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/** The logger's name */
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private name: string;
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/**
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* Creates a new [Logger] instance
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* @param name The name of the [Logger]
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*/
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constructor(name: string) {
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this.name = name;
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}
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private _getDate() {
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const current = new Date();
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const hours = current.getHours();
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const minutes = current.getMinutes();
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const seconds = current.getSeconds();
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const month = current.getMonth() + 1;
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const day = current.getDate();
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const year = current.getFullYear();
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return leeks.colors.gray(`[${day}/${month}/${year} @ ${hours.toString().padStart(2, '0')}:${minutes.toString().padStart(2, '0')}:${seconds.toString().padStart(2, '0')}]`);
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}
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private _formatMessage(...messages: LogMessage[]): string {
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return messages.map<string>((message: unknown) => {
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if ([null, undefined].includes(<any>message)) return leeks.colors.cyan(message === null ? 'null' : 'undefined');
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if (message instanceof Array) return message.join('\n');
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if (message instanceof Date) return leeks.colors.cyan(message.toUTCString());
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if (message instanceof Error) {
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const e = [`${message.name}: ${message.message}`];
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const stack = message.stack ? message.stack.split('\n').map(s => s.trim()) : [];
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stack.shift();
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const all = stack.map(s => {
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if (/(.+(?=)|.+) ((.+):\d+|[:\d+])[)]/g.test(s)) return s.match(/(.+(?=)|.+) ((.+):\d+|[:\d+])[)]/g)![0];
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if (/(.+):\d+|[:\d+][)]/g.test(s)) return s.match(/(.+):\d+|[:\d+][)]/g)![0];
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return s;
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});
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e.push(...all.map(item => ` • "${item.replace('at', '').trim()}"`));
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return e.join('\n');
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}
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if (!['object', 'function', 'undefined', 'string'].includes(typeof message)) return leeks.colors.cyan(<any>message);
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if (typeof message === 'object') return inspect(message, { depth: null });
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return message as any;
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}).join('\n');
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}
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private write(level: LogLevel, ...messages: LogMessage[]) {
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const lvlText = Colors[level];
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if (lvlText === undefined) throw new TypeError(`Invalid log level '${level}'`);
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const message = this._formatMessage(...messages);
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const name = leeks.hex('#F4A4D2', `[${this.name}]`);
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const date = this._getDate();
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const stream = level === LogLevel.Error ? process.stderr : process.stdout;
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stream.write(`${date} ${name} ${lvlText} ${message}\n`);
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}
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info(...messages: LogMessage[]) {
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return this.write(LogLevel.Info, ...messages);
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}
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warn(...messages: LogMessage[]) {
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return this.write(LogLevel.Warn, ...messages);
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}
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error(...messages: LogMessage[]) {
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return this.write(LogLevel.Error, ...messages);
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}
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debug(...messages: LogMessage[]) {
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return this.write(LogLevel.Debug, ...messages);
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}
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} |