92 lines
2.4 KiB
Dart
92 lines
2.4 KiB
Dart
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import 'dart:async';
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import 'dart:io';
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import 'package:logging/logging.dart';
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import '../utils/path_utils.dart';
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/// 日志服务
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class LogService {
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static final LogService _instance = LogService._internal();
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factory LogService() => _instance;
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LogService._internal();
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final Logger _rootLogger = Logger.root;
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final StreamController<String> _logController = StreamController<String>.broadcast();
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IOSink? _logFile;
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Stream<String> get logStream => _logController.stream;
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/// 初始化日志系统
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Future<void> initialize() async {
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// 配置日志输出
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_rootLogger.level = Level.ALL;
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_rootLogger.onRecord.listen((record) {
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final message = '[${record.time}] [${record.level.name}] ${record.message}';
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_logController.add(message);
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_logToFile(message);
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});
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// 打开日志文件
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try {
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final logDir = Directory(PathUtils.binFile('logs'));
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if (!await logDir.exists()) {
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await logDir.create(recursive: true);
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}
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final logFile = File(PathUtils.binFile('logs/client.log'));
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_logFile = logFile.openWrite(mode: FileMode.append);
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} catch (e) {
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// 静默失败
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}
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}
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/// 写入日志文件
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void _logToFile(String message) {
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try {
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if (_logFile != null) {
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_logFile!.writeln(message);
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_logFile!.flush();
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}
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} catch (e) {
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// 忽略写入错误，避免崩溃
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// print('写入日志文件失败: $e');
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}
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}
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/// 获取最新日志（限制行数）
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Future<String> getRecentLogs({int maxLines = 1000}) async {
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try {
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final file = File(PathUtils.binFile('logs/client.log'));
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if (await file.exists()) {
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final lines = await file.readAsLines();
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if (lines.length > maxLines) {
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return lines.sublist(lines.length - maxLines).join('\n');
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}
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return lines.join('\n');
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}
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} catch (e) {
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// 静默失败
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}
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return '';
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}
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/// 清理日志
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Future<void> clearLogs() async {
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try {
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final file = File(PathUtils.binFile('logs/client.log'));
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if (await file.exists()) {
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await file.writeAsString('');
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_logController.add('日志已清理');
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}
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} catch (e) {
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// 静默失败
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}
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}
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/// 关闭日志服务
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Future<void> close() async {
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await _logFile?.flush();
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await _logFile?.close();
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await _logController.close();
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}
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}
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