src/utils/Logger.ts

   1 import type { FormatWrap } from 'logform';
   2 import { createLogger, format, type transport } from 'winston';
   3 import TransportType from 'winston/lib/winston/transports/index.js';
   4 import DailyRotateFile from 'winston-daily-rotate-file';
   5
   6 import { Configuration } from './Configuration.js';
   7 import { insertAt } from './Utils.js';
   8 import { ConfigurationSection, type LogConfiguration } from '../types/index.js';
   9
  10 const logConfiguration = Configuration.getConfigurationSection<LogConfiguration>(
  11   ConfigurationSection.log,
  12 );
  13 let transports: transport[];
  14 if (logConfiguration.rotate === true) {
  15   const logMaxFiles = logConfiguration.maxFiles;
  16   const logMaxSize = logConfiguration.maxSize;
  17   transports = [
  18     new DailyRotateFile({
  19       filename: insertAt(
  20         logConfiguration.errorFile!,
  21         '-%DATE%',
  22         logConfiguration.errorFile!.indexOf('.log'),
  23       ),
  24       level: 'error',
  25       ...(logMaxFiles && { maxFiles: logMaxFiles }),
  26       ...(logMaxSize && { maxSize: logMaxSize }),
  27     }),
  28     new DailyRotateFile({
  29       filename: insertAt(logConfiguration.file!, '-%DATE%', logConfiguration.file!.indexOf('.log')),
  30       ...(logMaxFiles && { maxFiles: logMaxFiles }),
  31       ...(logMaxSize && { maxSize: logMaxSize }),
  32     }),
  33   ];
  34 } else {
  35   transports = [
  36     new TransportType.File({
  37       filename: logConfiguration.errorFile,
  38       level: 'error',
  39     }),
  40     new TransportType.File({
  41       filename: logConfiguration.file,
  42     }),
  43   ];
  44 }
  45
  46 export const logger = createLogger({
  47   silent: !logConfiguration.enabled,
  48   level: logConfiguration.level,
  49   format: format.combine(
  50     format.splat(),
  51     (format[logConfiguration.format! as keyof FormatWrap] as FormatWrap)(),
  52   ),
  53   transports,
  54 });
  55
  56 //
  57 // If enabled, log to the `console` with the format:
  58 // `${info.level}: ${info.message} JSON.stringify({ ...rest }) `
  59 //
  60 if (logConfiguration.console) {
  61   logger.add(
  62     new TransportType.Console({
  63       format: format.combine(
  64         format.splat(),
  65         (format[logConfiguration.format! as keyof FormatWrap] as FormatWrap)(),
  66       ),
  67     }),
  68   );
  69 }