なんかもうめっちゃ変えた

packages/backend/src/logger.ts

@@ -0,0 +1,112 @@
+import cluster from 'node:cluster';
+import chalk from 'chalk';
+import { default as convertColor } from 'color-convert';
+import { format as dateFormat } from 'date-fns';
+import { envOption } from './env.js';
+
+type Domain = {
+	name: string;
+	color?: string;
+};
+
+type Level = 'error' | 'success' | 'warning' | 'debug' | 'info';
+
+export default class Logger {
+	private domain: Domain;
+	private parentLogger: Logger | null = null;
+	private store: boolean;
+	private syslogClient: any | null = null;
+
+	constructor(domain: string, color?: string, store = true, syslogClient = null) {
+		this.domain = {
+			name: domain,
+			color: color,
+		};
+		this.store = store;
+		this.syslogClient = syslogClient;
+	}
+
+	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<string, any> | null, important = false, subDomains: Domain[] = [], store = true): void {
+		if (envOption.quiet) return;
+		if (!this.store) store = false;
+		if (level === 'debug') 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.isPrimary ? '*' : 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.rgb(...convertColor.keyword.rgb(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${m}`;
+		if (envOption.withLogTime) log = chalk.gray(time) + ' ' + log;
+
+		console.log(important ? chalk.bold(log) : log);
+
+		if (store) {
+			if (this.syslogClient) {
+				const send =
+					level === 'error' ? this.syslogClient.error :
+					level === 'warning' ? this.syslogClient.warning :
+					level === 'success' ? this.syslogClient.info :
+					level === 'debug' ? this.syslogClient.info :
+					level === 'info' ? this.syslogClient.info :
+					null as never;
+
+				send.bind(this.syslogClient)(message).catch(() => {});
+			}
+		}
+	}
+
+	public error(x: string | Error, data?: Record<string, any> | null, important = false): void { // 実行を継続できない状況で使う
+		if (x instanceof Error) {
+			data = data ?? {};
+			data.e = x;
+			this.log('error', x.toString(), data, important);
+		} else if (typeof x === 'object') {
+			this.log('error', `${(x as any).message ?? (x as any).name ?? x}`, data, important);
+		} else {
+			this.log('error', `${x}`, data, important);
+		}
+	}
+
+	public warn(message: string, data?: Record<string, any> | null, 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<string, any> | null, 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<string, any> | null, 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' || envOption.verbose) {
+			this.log('debug', message, data, important);
+		}
+	}
+
+	public info(message: string, data?: Record<string, any> | null, important = false): void { // それ以外
+		this.log('info', message, data, important);
+	}
+}