audiobookshelf/server/Logger.js
Lars Kiesow 91fa78d740
Add milliseconds to logging
This patch adds milliseconds to the time string used for logging. This
helps when debugging some timing issues and should have no real negative
side effect.
2023-11-19 20:36:04 +01:00

139 lines
3.4 KiB
JavaScript

const date = require('./libs/dateAndTime')
const { LogLevel } = require('./utils/constants')
class Logger {
constructor() {
this.isDev = process.env.NODE_ENV !== 'production'
this.logLevel = !this.isDev ? LogLevel.INFO : LogLevel.TRACE
this.socketListeners = []
this.logManager = null
}
get timestamp() {
return date.format(new Date(), 'YYYY-MM-DD HH:mm:ss.SSS')
}
get levelString() {
for (const key in LogLevel) {
if (LogLevel[key] === this.logLevel) {
return key
}
}
return 'UNKNOWN'
}
get source() {
try {
throw new Error()
} catch (error) {
const regex = global.isWin ? /^.*\\([^\\:]*:[0-9]*):[0-9]*\)*/ : /^.*\/([^/:]*:[0-9]*):[0-9]*\)*/
return error.stack.split('\n')[3].replace(regex, '$1')
}
}
getLogLevelString(level) {
for (const key in LogLevel) {
if (LogLevel[key] === level) {
return key
}
}
return 'UNKNOWN'
}
addSocketListener(socket, level) {
var index = this.socketListeners.findIndex(s => s.id === socket.id)
if (index >= 0) {
this.socketListeners.splice(index, 1, {
id: socket.id,
socket,
level
})
} else {
this.socketListeners.push({
id: socket.id,
socket,
level
})
}
}
removeSocketListener(socketId) {
this.socketListeners = this.socketListeners.filter(s => s.id !== socketId)
}
handleLog(level, args) {
const logObj = {
timestamp: this.timestamp,
source: this.source,
message: args.join(' '),
levelName: this.getLogLevelString(level),
level
}
if (level >= this.logLevel && this.logManager) {
this.logManager.logToFile(logObj)
}
this.socketListeners.forEach((socketListener) => {
if (socketListener.level <= level) {
socketListener.socket.emit('log', logObj)
}
})
}
setLogLevel(level) {
this.logLevel = level
this.debug(`Set Log Level to ${this.levelString}`)
}
/**
* Only to console and only for development
* @param {...any} args
*/
dev(...args) {
if (!this.isDev || process.env.HIDE_DEV_LOGS === '1') return
console.log(`[${this.timestamp}] DEV:`, ...args)
}
trace(...args) {
if (this.logLevel > LogLevel.TRACE) return
console.trace(`[${this.timestamp}] TRACE:`, ...args)
this.handleLog(LogLevel.TRACE, args)
}
debug(...args) {
if (this.logLevel > LogLevel.DEBUG) return
console.debug(`[${this.timestamp}] DEBUG:`, ...args, `(${this.source})`)
this.handleLog(LogLevel.DEBUG, args)
}
info(...args) {
if (this.logLevel > LogLevel.INFO) return
console.info(`[${this.timestamp}] INFO:`, ...args)
this.handleLog(LogLevel.INFO, args)
}
warn(...args) {
if (this.logLevel > LogLevel.WARN) return
console.warn(`[${this.timestamp}] WARN:`, ...args, `(${this.source})`)
this.handleLog(LogLevel.WARN, args)
}
error(...args) {
if (this.logLevel > LogLevel.ERROR) return
console.error(`[${this.timestamp}] ERROR:`, ...args, `(${this.source})`)
this.handleLog(LogLevel.ERROR, args)
}
fatal(...args) {
console.error(`[${this.timestamp}] FATAL:`, ...args, `(${this.source})`)
this.handleLog(LogLevel.FATAL, args)
}
note(...args) {
console.log(`[${this.timestamp}] NOTE:`, ...args)
this.handleLog(LogLevel.NOTE, args)
}
}
module.exports = new Logger()