fix: Enable logging in production

lib/features/logging/cubit/app_logs_cubit.dart

@@ -0,0 +1,119 @@
+import 'dart:async';
+import 'dart:io';
+
+import 'package:bloc/bloc.dart';
+import 'package:collection/collection.dart';
+import 'package:file_picker/file_picker.dart';
+import 'package:flutter/services.dart';
+import 'package:intl/intl.dart';
+import 'package:paperless_mobile/features/logging/models/parsed_log_message.dart';
+import 'package:paperless_mobile/core/service/file_service.dart';
+import 'package:paperless_mobile/features/notifications/services/local_notification_service.dart';
+import 'package:path/path.dart' as p;
+import 'package:permission_handler/permission_handler.dart';
+import 'package:rxdart/rxdart.dart';
+part 'app_logs_state.dart';
+
+final _fileNameFormat = DateFormat("yyyy-MM-dd");
+
+class AppLogsCubit extends Cubit<AppLogsState> {
+  StreamSubscription? _fileChangesSubscription;
+  final LocalNotificationService _localNotificationService;
+  AppLogsCubit(
+    DateTime date,
+    this._localNotificationService,
+  ) : super(AppLogsStateInitial(date: date));
+
+  Future<void> loadLogs(DateTime date) async {
+    if (date == state.date) {
+      return;
+    }
+    _fileChangesSubscription?.cancel();
+    emit(AppLogsStateLoading(date: date));
+    final logDir = FileService.instance.logDirectory;
+    final availableLogs = (await logDir
+            .list()
+            .whereType<File>()
+            .where((event) => event.path.endsWith('.log'))
+            .map((e) =>
+                _fileNameFormat.parse(p.basenameWithoutExtension(e.path)))
+            .toList())
+        .sorted();
+    final logFile = _getLogfile(date);
+    if (!await logFile.exists()) {
+      emit(AppLogsStateLoaded(
+        date: date,
+        logs: [],
+        availableLogs: availableLogs,
+      ));
+    }
+    try {
+      _updateLogsFromFile(logFile, date, availableLogs);
+      _fileChangesSubscription = logFile.watch().listen((event) async {
+        if (!isClosed) {
+          _updateLogsFromFile(logFile, date, availableLogs);
+        }
+      });
+    } catch (e) {
+      emit(AppLogsStateError(
+        error: e,
+        date: date,
+      ));
+    }
+  }
+
+  void _updateLogsFromFile(
+      File file, DateTime date, List<DateTime> availableLogs) async {
+    final logs = await file.readAsLines();
+    final parsedLogs = ParsedLogMessage.parse(logs).reversed.toList();
+    emit(AppLogsStateLoaded(
+      date: date,
+      logs: parsedLogs,
+      availableLogs: availableLogs,
+    ));
+  }
+
+  Future<void> clearLogs(DateTime date) async {
+    final logFile = _getLogfile(date);
+    await logFile.writeAsString('');
+    await loadLogs(date);
+  }
+
+  Future<void> copyToClipboard(DateTime date) async {
+    final file = _getLogfile(date);
+    if (!await file.exists()) {
+      return;
+    }
+    final content = await file.readAsString();
+    Clipboard.setData(ClipboardData(text: content));
+  }
+
+  Future<void> saveLogs(DateTime date, String locale) async {
+    var formattedDate = _fileNameFormat.format(date);
+    final filename = 'paperless_mobile_logs_$formattedDate.log';
+    // final parentDir = await FilePicker.platform.getDirectoryPath(
+    //   dialogTitle: "Save log from ${DateFormat.yMd(locale).format(date)}",
+    //   initialDirectory: Platform.isAndroid
+    //       ? FileService.instance.downloadsDirectory.path
+    //       : null,
+    // );
+    // if (parentDir == null) {
+    //   return;
+    // }
+    final logFile = _getLogfile(date);
+    final parentDir = FileService.instance.downloadsDirectory;
+    final downloadedFile = await logFile.copy(p.join(parentDir.path, filename));
+    _localNotificationService.notifyFileDownload(filePath: downloadedFile.path);
+  }
+
+  File _getLogfile(DateTime date) {
+    return File(p.join(FileService.instance.logDirectory.path,
+        '${_fileNameFormat.format(date)}.log'));
+  }
+
+  @override
+  Future<void> close() async {
+    await _fileChangesSubscription?.cancel();
+    return super.close();
+  }
+}