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- "use strict";
- const LEVELS = ['debug', 'info', 'warn', 'error', 'silent'];
- const LEVEL_TO_CONSOLE_METHOD = new Map([['debug', 'log'], ['info', 'log'], ['warn', 'log']]);
- class Logger {
- constructor(level = Logger.defaultLevel) {
- this.activeLevels = new Set();
- this.setLogLevel(level);
- }
- setLogLevel(level) {
- const levelIndex = LEVELS.indexOf(level);
- if (levelIndex === -1) throw new Error(`Invalid log level "${level}". Use one of these: ${LEVELS.join(', ')}`);
- this.activeLevels.clear();
- for (const [i, level] of LEVELS.entries()) {
- if (i >= levelIndex) this.activeLevels.add(level);
- }
- }
- _log(level, ...args) {
- console[LEVEL_TO_CONSOLE_METHOD.get(level) || level](...args);
- }
- }
- Logger.levels = LEVELS;
- Logger.defaultLevel = 'info';
- ;
- LEVELS.forEach(level => {
- if (level === 'silent') return;
- Logger.prototype[level] = function (...args) {
- if (this.activeLevels.has(level)) this._log(level, ...args);
- };
- });
- module.exports = Logger;
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