1 | 'use strict';
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2 |
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3 |
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4 | const PrefixFactory = require('../factory/PrefixFactory');
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5 | const MethodFactory = require('./MethodFactory');
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6 |
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7 | const defaults = {
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8 | factory: null,
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9 | level: 'warn',
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10 | name: +new Date(),
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11 | prefix: null
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12 | };
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13 |
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14 | module.exports = class LogLevel {
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15 | constructor(options) {
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16 |
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17 |
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18 | this.type = 'LogLevel';
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19 | this.options = Object.assign({}, defaults, options);
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20 | this.methodFactory = options.factory;
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21 |
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22 | if (!this.methodFactory) {
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23 | const factory = options.prefix ? new PrefixFactory(this, options.prefix) : new MethodFactory(this);
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24 | this.methodFactory = factory;
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25 | }
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26 |
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27 | if (!this.methodFactory.logger) {
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28 | this.methodFactory.logger = this;
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29 | }
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30 |
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31 | this.name = options.name || '<unknown>';
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32 |
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33 |
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34 | this.level = this.options.level;
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35 | }
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36 |
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37 | get factory() {
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38 | return this.methodFactory;
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39 | }
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40 |
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41 | set factory(factory) {
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42 | factory.logger = this;
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43 | this.methodFactory = factory;
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44 | this.methodFactory.replaceMethods(this.level);
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45 | }
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46 |
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47 | disable() {
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48 | this.level = this.levels.SILENT;
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49 | }
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50 |
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51 | enable() {
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52 | this.level = this.levels.TRACE;
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53 | }
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54 |
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55 | get level() {
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56 | return this.currentLevel;
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57 | }
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58 |
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59 | set level(logLevel) {
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60 | const level = this.methodFactory.distillLevel(logLevel);
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61 |
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62 | if (level == null) {
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63 | throw new Error(`loglevelnext: setLevel() called with invalid level: ${logLevel}`);
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64 | }
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65 |
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66 | this.currentLevel = level;
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67 | this.methodFactory.replaceMethods(level);
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68 |
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69 | if (typeof console === 'undefined' && level < this.levels.SILENT) {
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70 |
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71 | console.warn('loglevelnext: console is undefined. The log will produce no output.');
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72 | }
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73 | }
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74 |
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75 | get levels() {
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76 | return this.methodFactory.levels;
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77 | }
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78 | };
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