import * as cluster from 'cluster'; import * as os from 'os'; import chalk from 'chalk'; import * as dateformat from 'dateformat'; import { program } from '../argv'; import Log from '../models/log'; type Domain = { name: string; color: string; }; type Level = 'error' | 'success' | 'warning' | 'debug' | 'info'; export default class Logger { private domain: Domain; private parentLogger: Logger; private store: boolean; constructor(domain: string, color?: string, store = true) { this.domain = { name: domain, color: color, }; this.store = store; } public createSubLogger(domain: string, color?: string, store = true): Logger { const logger = new Logger(domain, color, store); logger.parentLogger = this; return logger; } private log(level: Level, message: string, data: Record, important = false, subDomains: Domain[] = [], store = true): void { if (program.quiet) return; if (process.env.NODE_ENV === 'test') return; if (!this.store) store = false; if (this.parentLogger) { this.parentLogger.log(level, message, data, important, [this.domain].concat(subDomains), store); return; } const time = dateformat(new Date(), 'HH:MM:ss'); const worker = cluster.isMaster ? '*' : cluster.worker.id; const l = level === 'error' ? important ? chalk.bgRed.white('ERR ') : chalk.red('ERR ') : level === 'warning' ? chalk.yellow('WARN') : level === 'success' ? important ? chalk.bgGreen.white('DONE') : chalk.green('DONE') : level === 'debug' ? chalk.gray('VERB') : level === 'info' ? chalk.blue('INFO') : null; const domains = [this.domain].concat(subDomains).map(d => d.color ? chalk.keyword(d.color)(d.name) : chalk.white(d.name)); const m = level === 'error' ? chalk.red(message) : level === 'warning' ? chalk.yellow(message) : level === 'success' ? chalk.green(message) : level === 'debug' ? chalk.gray(message) : level === 'info' ? message : null; let log = `${l} ${worker}\t[${domains.join(' ')}]\t${m}`; if (program.withLogTime) log = chalk.gray(time) + ' ' + log; console.log(important ? chalk.bold(log) : log); if (store) { Log.insert({ createdAt: new Date(), machine: os.hostname(), worker: worker, domain: [this.domain].concat(subDomains).map(d => d.name), level: level, message: message, data: data, }); } } public error(x: string | Error, data?: Record, important = false): void { // 実行を継続できない状況で使う if (x instanceof Error) { data = data || {}; data.e = x; this.log('error', x.toString(), data, important); } else { this.log('error', x, data, important); } } public warn(message: string, data?: Record, important = false): void { // 実行を継続できるが改善すべき状況で使う this.log('warning', message, data, important); } public succ(message: string, data?: Record, important = false): void { // 何かに成功した状況で使う this.log('success', message, data, important); } public debug(message: string, data?: Record, important = false): void { // デバッグ用に使う(開発者に必要だが利用者に不要な情報) if (process.env.NODE_ENV != 'production' || program.verbose) { this.log('debug', message, data, important); } } public info(message: string, data?: Record, important = false): void { // それ以外 this.log('info', message, data, important); } }