Add: Daily file logs and log server settings

server/objects/DailyLog.js

@@ -0,0 +1,112 @@
+const Path = require('path')
+const date = require('date-and-time')
+const fs = require('fs-extra')
+const { readTextFile } = require('../utils/fileUtils')
+const Logger = require('../Logger')
+
+class DailyLog {
+  constructor() {
+    this.id = null
+    this.datePretty = null
+
+    this.dailyLogDirPath = null
+    this.filename = null
+    this.path = null
+    this.fullPath = null
+
+    this.createdAt = null
+
+    this.logs = []
+    this.bufferedLogLines = []
+    this.locked = false
+  }
+
+  static getCurrentDailyLogFilename() {
+    return date.format(new Date(), 'YYYY-MM-DD') + '.txt'
+  }
+
+  static getCurrentDateString() {
+    return date.format(new Date(), 'YYYY-MM-DD')
+  }
+
+  toJSON() {
+    return {
+      id: this.id,
+      datePretty: this.datePretty,
+      path: this.path,
+      dailyLogDirPath: this.dailyLogDirPath,
+      fullPath: this.fullPath,
+      filename: this.filename,
+      createdAt: this.createdAt
+    }
+  }
+
+  setData(data) {
+    this.id = date.format(new Date(), 'YYYY-MM-DD')
+    this.datePretty = date.format(new Date(), 'ddd, MMM D YYYY')
+
+    this.dailyLogDirPath = data.dailyLogDirPath
+
+    this.filename = this.id + '.txt'
+    this.path = Path.join('backups', this.filename)
+    this.fullPath = Path.join(this.dailyLogDirPath, this.filename)
+
+    this.createdAt = Date.now()
+  }
+
+  async appendBufferedLogs() {
+    var buffered = [...this.bufferedLogLines]
+    this.bufferedLogLines = []
+
+    var oneBigLog = ''
+    buffered.forEach((logLine) => {
+      oneBigLog += logLine + '\n'
+    })
+
+    this.appendLogLine(oneBigLog)
+  }
+
+  async appendLog(logObj) {
+    this.logs.push(logObj)
+    var line = JSON.stringify(logObj)
+    this.appendLogLine(line)
+  }
+
+  async appendLogLine(line) {
+    if (this.locked) {
+      this.bufferedLogLines.push(line)
+      return
+    }
+    this.locked = true
+
+    await fs.writeFile(this.fullPath, line, { flag: "a+" }).catch((error) => {
+      console.log('[DailyLog] Append log failed', error)
+    })
+
+    this.locked = false
+    if (this.bufferedLogLines.length) {
+      this.appendBufferedLogs()
+    }
+  }
+
+  async loadLogs() {
+    var exists = await fs.pathExists(this.fullPath)
+    if (!exists) {
+      console.error('Daily log does not exist')
+      return
+    }
+
+    var text = await readTextFile(this.fullPath)
+    this.logs = text.split(/\r?\n/).map(t => {
+      try {
+        return JSON.parse(t)
+      } catch (err) {
+        console.error('Failed to parse log line', t, err)
+        return null
+      }
+    }).filter(l => !!l)
+
+    Logger.info(`[DailyLog] ${this.id}: Loaded ${this.logs.length} Logs`)
+  }
+}
+module.exports = DailyLog