RocketChat/Rocket.Chat

/**
 * This class implements logger.
 * @remarks
 */
enum LogLevel {
    'fatal',
    'error',
    'warn',
    'info',
    'debug',
    'verbose',
}

export class ClientLogger {
    module: string | undefined;

    logLevel: LogLevel | undefined;

    constructor(module: string, _level: LogLevel = LogLevel.info) {
        this.logLevel = _level;
        this.module = module;
    }

    private writeLog(level: LogLevel, log: any): void {
        const logLine = `${new Date().toISOString()} ${LogLevel[level]}  ${this.module}::${log}`;
        if (this.logLevel && this.logLevel < level) {
            return;
        }
        switch (level) {
            case LogLevel.warn:
                console.warn(logLine);
                break;
            case LogLevel.error:
            case LogLevel.fatal:
                console.error(logLine);
                break;
            default: {
                console.log(logLine);
            }
        }
    }

    verbose(...args: any[]): void {
        this.writeLog(LogLevel.verbose, args);
    }

    debug(...args: any[]): void {
        this.writeLog(LogLevel.debug, args);
    }

    info(...args: any[]): void {
        this.writeLog(LogLevel.info, args);
    }

    warn(...args: any[]): void {
        this.writeLog(LogLevel.warn, args);
    }

    error(...args: any[]): void {
        this.writeLog(LogLevel.error, args);
    }

    fatal(...args: any[]): void {
        this.writeLog(LogLevel.fatal, args);
    }

    setLogLevel(level: LogLevel): void {
        this.logLevel = level;
    }
}