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 { ConfigurationSection, type LogConfiguration } from '../types/index.js'
   7 import { Configuration } from './Configuration.js'
   8 import { insertAt } from './Utils.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         // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  21         logConfiguration.errorFile!,
  22         '-%DATE%',
  23         // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  24         logConfiguration.errorFile!.indexOf('.log')
  25       ),
  26       level: 'error',
  27       ...(logMaxFiles != null && { maxFiles: logMaxFiles }),
  28       ...(logMaxSize != null && { maxSize: logMaxSize })
  29     }),
  30     new DailyRotateFile({
  31       // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  32       filename: insertAt(logConfiguration.file!, '-%DATE%', logConfiguration.file!.indexOf('.log')),
  33       ...(logMaxFiles != null && { maxFiles: logMaxFiles }),
  34       ...(logMaxSize != null && { maxSize: logMaxSize })
  35     })
  36   ]
  37 } else {
  38   transports = [
  39     new TransportType.File({
  40       filename: logConfiguration.errorFile,
  41       level: 'error'
  42     }),
  43     new TransportType.File({
  44       filename: logConfiguration.file
  45     })
  46   ]
  47 }
  48
  49 export const logger = createLogger({
  50   silent: logConfiguration.enabled === false,
  51   level: logConfiguration.level,
  52   format: format.combine(
  53     format.splat(),
  54     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  55     (format[logConfiguration.format! as keyof FormatWrap] as FormatWrap)()
  56   ),
  57   transports
  58 })
  59
  60 //
  61 // If enabled, log to the `console` with the format:
  62 // `${info.level}: ${info.message} JSON.stringify({ ...rest }) `
  63 //
  64 if (logConfiguration.console === true) {
  65   logger.add(
  66     new TransportType.Console({
  67       format: format.combine(
  68         format.splat(),
  69         // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  70         (format[logConfiguration.format! as keyof FormatWrap] as FormatWrap)()
  71       )
  72     })
  73   )
  74 }