46 lines
1.2 KiB
TypeScript
46 lines
1.2 KiB
TypeScript
import {appendFileSync} from 'fs';
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import moment from 'moment-timezone';
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import {config} from './config';
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enum LogLevel{
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ERROR = 'ERROR',
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WARNING = 'WARNING',
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DEBUG = 'DEBUG',
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LOG = 'LOG',
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INFO = 'INFO',
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}
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class Logger{
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constructor(readonly logFile?: string){
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this.debug('logger initialized');
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}
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private currentTime(): string{
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return '[' + moment().tz('Asia/Taipei').format('YYYY/MM/DD hh:mm:ss') + ']';
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}
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private writeLog(content: string, logLevel: LogLevel): void{
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const line = `${this.currentTime()} ${logLevel}: ${content}`;
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console.log(line);
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if(this.logFile !== undefined){
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appendFileSync(this.logFile, line + '\n');
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}
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}
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error(content: string): string{
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this.writeLog(content, LogLevel.ERROR); return content;
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}
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warning(content: string): string{
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this.writeLog(content, LogLevel.WARNING); return content;
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}
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debug(content: string): string{
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this.writeLog(content, LogLevel.DEBUG); return content;
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}
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log(content: string): string{
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this.writeLog(content, LogLevel.LOG); return content;
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}
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info(content: string): string{
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this.writeLog(content, LogLevel.INFO); return content;
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}
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}
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export const logger = new Logger(config.logger.logFile);
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