src/utils/Logger.ts

   1 import type { FormatWrap } from 'logform';
   2 import { type Logger, createLogger, format, type transport } from 'winston';
   3 import TransportType from 'winston/lib/winston/transports';
   4 import DailyRotateFile from 'winston-daily-rotate-file';
   5
   6 import { Configuration } from './Configuration';
   7 import { Utils } from './Utils';
   8
   9 let transports: transport[];
  10 if (Configuration.getLogRotate() === true) {
  11   const logMaxFiles = Configuration.getLogMaxFiles();
  12   const logMaxSize = Configuration.getLogMaxSize();
  13   transports = [
  14     new DailyRotateFile({
  15       filename: Utils.insertAt(
  16         Configuration.getLogErrorFile(),
  17         '-%DATE%',
  18         Configuration.getLogErrorFile()?.indexOf('.log')
  19       ),
  20       level: 'error',
  21       ...(logMaxFiles && { maxFiles: logMaxFiles }),
  22       ...(logMaxSize && { maxSize: logMaxSize }),
  23     }),
  24     new DailyRotateFile({
  25       filename: Utils.insertAt(
  26         Configuration.getLogFile(),
  27         '-%DATE%',
  28         Configuration.getLogFile()?.indexOf('.log')
  29       ),
  30       ...(logMaxFiles && { maxFiles: logMaxFiles }),
  31       ...(logMaxSize && { maxSize: logMaxSize }),
  32     }),
  33   ];
  34 } else {
  35   transports = [
  36     new TransportType.File({ filename: Configuration.getLogErrorFile(), level: 'error' }),
  37     new TransportType.File({ filename: Configuration.getLogFile() }),
  38   ];
  39 }
  40
  41 const logger: Logger = createLogger({
  42   level: Configuration.getLogLevel(),
  43   format: format.combine(format.splat(), (format[Configuration.getLogFormat()] as FormatWrap)()),
  44   transports,
  45 });
  46
  47 //
  48 // If enabled, log to the `console` with the format:
  49 // `${info.level}: ${info.message} JSON.stringify({ ...rest }) `
  50 //
  51 if (Configuration.getLogConsole()) {
  52   logger.add(
  53     new TransportType.Console({
  54       format: format.combine(
  55         format.splat(),
  56         (format[Configuration.getLogFormat()] as FormatWrap)()
  57       ),
  58     })
  59   );
  60 }
  61
  62 export { logger };