Fix writeQueue ReferenceError in logger.ts

src/services/logger.ts

@@ -35,6 +35,12 @@ const processLogQueue = async () => {
   isWriting = false;
 };
 
+const waitForQueueDrain = async () => {
+  while (isWriting || logQueue.length > 0) {
+    await new Promise(resolve => setTimeout(resolve, 50));
+  }
+};
+
 const enqueueWrite = async (logLine: string) => {
   logQueue.push(logLine);
   processLogQueue(); // Intentionally unawaited to run in background
@@ -68,24 +74,32 @@ export const logger = {
 
   readLogs: async (): Promise<string> => {
     try {
-      // Ensure we wait for pending writes before reading
-      await writeQueue;
-      const fileInfo = await FileSystem.getInfoAsync(logFileUri);
-      if (!fileInfo.exists) return 'Keine Logs vorhanden.';
-      return await FileSystem.readAsStringAsync(logFileUri, { encoding: FileSystem.EncodingType.UTF8 });
+      // Wait for pending writes to finish
+      await waitForQueueDrain();
+      isWriting = true; // lock the queue while reading
+      try {
+        const fileInfo = await FileSystem.getInfoAsync(logFileUri);
+        if (!fileInfo.exists) return 'Keine Logs vorhanden.';
+        return await FileSystem.readAsStringAsync(logFileUri, { encoding: FileSystem.EncodingType.UTF8 });
+      } finally {
+        isWriting = false;
+        processLogQueue();
+      }
     } catch (e) {
       return `Fehler beim Lesen der Logs: ${e}`;
     }
   },
 
   clearLogs: async () => {
-    writeQueue = writeQueue.then(async () => {
-      try {
-        await FileSystem.deleteAsync(logFileUri, { idempotent: true });
-      } catch (e) {
-        console.warn('Failed to clear logs:', e);
-      }
-    });
-    return writeQueue;
+    await waitForQueueDrain();
+    isWriting = true; // lock the queue while clearing
+    try {
+      await FileSystem.deleteAsync(logFileUri, { idempotent: true });
+    } catch (e) {
+      console.warn('Failed to clear logs:', e);
+    } finally {
+      isWriting = false;
+      processLogQueue();
+    }
   }
 };