Refactorng

src/misc/logger.ts

@@ -0,0 +1,53 @@
+import chalk, { Chalk } from 'chalk';
+
+export type LogLevel = 'Error' | 'Warn' | 'Info';
+
+function toLevelColor(level: LogLevel): Chalk {
+	switch (level) {
+		case 'Error': return chalk.red;
+		case 'Warn': return chalk.yellow;
+		case 'Info': return chalk.blue;
+	}
+}
+
+export default class Logger {
+	private domain: string;
+
+	constructor(domain: string) {
+		this.domain = domain;
+	}
+
+	public static log(level: LogLevel, message: string): void {
+		const color = toLevelColor(level);
+		const time = (new Date()).toLocaleTimeString('ja-JP');
+		console.log(`[${time} ${color.bold(level.toUpperCase())}]: ${message}`);
+	}
+
+	public static error(message: string): void {
+		Logger.log('Error', message);
+	}
+
+	public static warn(message: string): void {
+		Logger.log('Warn', message);
+	}
+
+	public static info(message: string): void {
+		Logger.log('Info', message);
+	}
+
+	public log(level: LogLevel, message: string): void {
+		Logger.log(level, `[${this.domain}] ${message}`);
+	}
+
+	public error(message: string): void {
+		this.log('Error', message);
+	}
+
+	public warn(message: string): void {
+		this.log('Warn', message);
+	}
+
+	public info(message: string): void {
+		this.log('Info', message);
+	}
+}