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'use strict';
/* global window: true */
const PrefixFactory = require('../factory/PrefixFactory');
const MethodFactory = require('./MethodFactory');
const defaults = {
factory: null,
level: 'warn',
name: +new Date(),
prefix: null
};
module.exports = class LogLevel {
constructor(options) {
// implement for some _very_ loose type checking. avoids getting into a
// circular require between MethodFactory and LogLevel
this.type = 'LogLevel';
this.options = Object.assign({}, defaults, options);
this.methodFactory = options.factory;
if (!this.methodFactory) {
const factory = options.prefix ? new PrefixFactory(this, options.prefix) : new MethodFactory(this);
this.methodFactory = factory;
}
if (!this.methodFactory.logger) {
this.methodFactory.logger = this;
}
this.name = options.name || '<unknown>';
// this.level is a setter, do this after setting up the factory
this.level = this.options.level;
}
get factory() {
return this.methodFactory;
}
set factory(factory) {
factory.logger = this;
this.methodFactory = factory;
this.methodFactory.replaceMethods(this.level);
}
disable() {
this.level = this.levels.SILENT;
}
enable() {
this.level = this.levels.TRACE;
}
get level() {
return this.currentLevel;
}
set level(logLevel) {
const level = this.methodFactory.distillLevel(logLevel);
if (level == null) {
throw new Error(`loglevelnext: setLevel() called with invalid level: ${logLevel}`);
}
this.currentLevel = level;
this.methodFactory.replaceMethods(level);
if (typeof console === 'undefined' && level < this.levels.SILENT) {
// eslint-disable-next-line no-console
console.warn('loglevelnext: console is undefined. The log will produce no output.');
}
}
get levels() { // eslint-disable-line class-methods-use-this
return this.methodFactory.levels;
}
};
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