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HMG_QLine/lib/services/logger_service.dart

133 lines
5.3 KiB
Dart

import 'dart:io';
import 'package:hmg_qline/config/dependency_injection.dart';
import 'package:hmg_qline/constants/app_constants.dart';
import 'package:hmg_qline/services/cache_service.dart';
import 'package:hmg_qline/utilities/enums.dart';
import 'package:hmg_qline/view_models/screen_config_view_model.dart';
import 'package:intl/intl.dart';
import 'package:logger/logger.dart';
import 'package:path_provider/path_provider.dart';
abstract class LoggerService {
Future<void> logToFile({required String message, required LogTypeEnum type, required String source});
void logError(String message);
void logInfo(String message);
Future<void> logCrash({required Object error, StackTrace? stackTrace, String? context, String source = "CRASH"});
}
class LoggerServiceImp implements LoggerService {
Logger logger;
LoggerServiceImp({required this.logger});
Future<void> _ensureLogFileClearedIfNeeded({required File file, required DateTime now, required DateTime? lastLogsClearedAt, required String source, required String typeName}) async {
try {
CacheService cacheService = getIt.get<CacheService>();
// Clear by time threshold
if (lastLogsClearedAt != null && now.difference(lastLogsClearedAt).inHours >= AppConstants.clearLogsHoursThreshold) {
final clearingMessage = "[${DateFormat('yyyy-MM-dd hh:mm:ss a').format(now)}] [SOURCE: $source] $typeName: LOGS HAVE BEEN CLEARED\n";
await file.writeAsString(clearingMessage, mode: FileMode.write);
// persist
final updated = DateTime.now();
getIt.get<ScreenConfigViewModel>().lastTimeLogsCleared = updated;
await cacheService.setLastTimeLogsCleared(lastTimeCleared: updated.millisecondsSinceEpoch);
return;
}
// Clear by size threshold
if (await file.exists()) {
final length = await file.length();
if (length >= AppConstants.maxLogFileSizeBytes) {
final clearingMessage = "[${DateFormat('yyyy-MM-dd hh:mm:ss a').format(now)}] [SOURCE: $source] $typeName: LOGS ROTATED DUE_TO_SIZE\n";
// Overwrite file with clearing message
await file.writeAsString(clearingMessage, mode: FileMode.write);
final updated = DateTime.now();
getIt.get<ScreenConfigViewModel>().lastTimeLogsCleared = updated;
await cacheService.setLastTimeLogsCleared(lastTimeCleared: updated.millisecondsSinceEpoch);
return;
}
}
} catch (e) {
logger.e('Failed to check/clear log file: $e');
}
}
@override
Future<void> logToFile({required String message, required LogTypeEnum type, required String source}) async {
try {
ScreenConfigViewModel screenConfigViewModel = getIt.get<ScreenConfigViewModel>();
final timestamp = DateFormat('yyyy-MM-dd hh:mm:ss a').format(DateTime.now());
final formattedMessage = "[$timestamp] [SOURCE: $source] ${type.name.toUpperCase()}: $message";
final baseDir = await getExternalStorageDirectory();
final logDir = Directory('${baseDir!.path}/logs');
if (!await logDir.exists()) {
await logDir.create(recursive: true);
}
String logFileName = "";
if (type == LogTypeEnum.error) {
logFileName = AppStrings.errorLogsFileName;
} else if (type == LogTypeEnum.data) {
logFileName = AppStrings.dataLogsFileName;
} else {
logFileName = AppStrings.connectivityLogsFileName;
}
final file = File('${logDir.path}/${screenConfigViewModel.currentScreenIP}_$logFileName');
final now = DateTime.now();
await _ensureLogFileClearedIfNeeded(file: file, now: now, lastLogsClearedAt: screenConfigViewModel.lastTimeLogsCleared, source: source, typeName: type.name.toUpperCase());
await file.writeAsString("$formattedMessage\n", mode: FileMode.append);
} catch (e) {
logger.e('Logging failed: $e');
}
}
@override
Future<void> logCrash({required Object error, StackTrace? stackTrace, String? context, String source = "CRASH"}) async {
try {
ScreenConfigViewModel screenConfigViewModel = getIt.get<ScreenConfigViewModel>();
final timestamp = DateFormat('yyyy-MM-dd hh:mm:ss a').format(DateTime.now());
final sep = '==================== CRASH ====================';
final contextStr = context ?? 'No context provided';
final errorMsg = error.toString();
final stack = stackTrace?.toString() ?? 'No stack trace available';
final crashMessage = '$sep\n[$timestamp]\nCONTEXT: $contextStr\nERROR: $errorMsg\nSTACKTRACE:\n$stack\n$sep\n';
final baseDir = await getExternalStorageDirectory();
final logDir = Directory('${baseDir!.path}/logs');
if (!await logDir.exists()) {
await logDir.create(recursive: true);
}
final file = File('${logDir.path}/${screenConfigViewModel.currentScreenIP}_${AppStrings.errorLogsFileName}');
final now = DateTime.now();
await _ensureLogFileClearedIfNeeded(file: file, now: now, lastLogsClearedAt: screenConfigViewModel.lastTimeLogsCleared, source: source, typeName: 'ERROR');
await file.writeAsString(crashMessage, mode: FileMode.append);
logger.e('Crash logged: $errorMsg');
} catch (e) {
logger.e('Crash logging failed: $e');
}
}
@override
void logError(String message) {
logger.e(message);
}
@override
void logInfo(String message) {
logger.i(message);
}
}