Dimensione massima log

logs.js

@@ -5,19 +5,59 @@ let logFile;
 
 let dir = 'log/';
 
-if (!fs.existsSync(dir)){
-    fs.mkdirSync(dir);
+if (!fs.existsSync(dir)) {
+  fs.mkdirSync(dir);
 }
-  logFile = path.join(__dirname + '/' + dir, "NetBird-UptimeKuma.log");
-console.log(`[${shared.now()}] File di log situato in ${__dirname}/${dir}NetBird-UptimeKuma.log`);
-  
+logFile = path.join(__dirname + '/' + dir, "NetBird-UptimeKuma.log");
+
+console.log(`[${shared.now()}] File di log situato in ${logFile}`);
+
+if ("MAX_LOG_SIZE" in process.env) {
+  shared.setMaxLogSize(process.env.MAX_LOG_SIZE);
+}
+console.log(`[${shared.now()}] Dimensione massima del file di log: ${shared.getMaxLogSize()} MB`);
+
 function writeToLog(message) {
   fs.appendFileSync(logFile, `${message}\n`);
 }
 
 function Log(message) {
   console.log(message);
+  keepLogfileSmall();
   writeToLog(message);
 }
 
+function keepLogfileSmall() {
+  let stats = fs.statSync(logFile);
+  let currentLogSize = stats.size / (1024 * 1024);
+
+  if (currentLogSize >= shared.getMaxLogSize()) {
+    try {
+      const data = fs.readFileSync(logFile, 'utf8');
+
+      let lastWorkingTokenIndex = data.lastIndexOf("Nuovo token creato");
+      if (lastWorkingTokenIndex == -1) {
+        try {
+          fs.writeFileSync(logFile, "");
+          Log(`[${shared.now()}] Log precedente cancellato correttamente.`)
+        } catch (err) {
+          Log(`[${shared.now()}] Errore nella scrittura del file: ${err}`);
+
+        }
+      } else {
+        let lastWorkingTokenLine = data.substring(lastWorkingTokenIndex - 22, lastWorkingTokenIndex + 60) + "\n";
+
+        try {
+          fs.writeFileSync(logFile, lastWorkingTokenLine);
+          Log(`[${shared.now()}] Log precedente cancellato correttamente.`)
+        } catch (err) {
+          Log(`[${shared.now()}] Errore nella scrittura del file: ${err}`);
+        }
+      }
+    } catch (err) {
+      Log(`[${shared.now()}] Errore nella lettura del file: ${err}`);
+    }
+
+  }
+}
 module.exports = { Log };