132 lines
3.9 KiB
Dart
132 lines
3.9 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:path_provider/path_provider.dart';
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import '../../widgets/toast_helper.dart';
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/// 同步引擎日志预览页面
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class SyncLogViewerPage extends StatefulWidget {
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const SyncLogViewerPage({super.key});
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@override
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State<SyncLogViewerPage> createState() => _SyncLogViewerPageState();
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}
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class _SyncLogViewerPageState extends State<SyncLogViewerPage> {
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String _logContent = '';
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bool _isLoading = true;
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final ScrollController _scrollController = ScrollController();
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@override
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void initState() {
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super.initState();
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_loadLog();
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}
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@override
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void dispose() {
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_scrollController.dispose();
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super.dispose();
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}
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Future<String> _getSyncLogPath() async {
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final appDir = await getApplicationSupportDirectory();
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return '${appDir.path}${Platform.pathSeparator}sync_core${Platform.pathSeparator}logs${Platform.pathSeparator}sync_log.txt';
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}
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Future<void> _loadLog() async {
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setState(() => _isLoading = true);
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try {
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final path = await _getSyncLogPath();
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final file = File(path);
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if (!await file.exists()) {
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if (mounted) {
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setState(() {
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_logContent = '';
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_isLoading = false;
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});
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}
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return;
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}
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final lines = await file.readAsLines();
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const maxLines = 1000;
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String content;
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if (lines.length <= maxLines) {
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content = lines.join('\n');
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} else {
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content = '... (仅显示最近 $maxLines 行)\n\n'
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'${lines.sublist(lines.length - maxLines).join('\n')}';
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}
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if (mounted) {
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setState(() {
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_logContent = content;
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_isLoading = false;
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});
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WidgetsBinding.instance.addPostFrameCallback((_) {
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if (_scrollController.hasClients) {
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_scrollController.jumpTo(_scrollController.position.maxScrollExtent);
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}
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});
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}
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} catch (e) {
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if (mounted) {
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setState(() => _isLoading = false);
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ToastHelper.error('读取同步日志失败：$e');
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}
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}
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}
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@override
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Widget build(BuildContext context) {
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final theme = Theme.of(context);
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final isDark = theme.brightness == Brightness.dark;
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return Scaffold(
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appBar: AppBar(
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title: const Text('同步日志'),
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actions: [
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IconButton(
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icon: const Icon(Icons.refresh),
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onPressed: _loadLog,
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tooltip: '刷新',
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),
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],
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),
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body: _isLoading
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? const Center(child: CircularProgressIndicator())
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: _logContent.isEmpty
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? Center(
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child: Column(
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mainAxisAlignment: MainAxisAlignment.center,
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children: [
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Icon(Icons.description_outlined,
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size: 48, color: theme.hintColor.withValues(alpha: 0.4)),
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const SizedBox(height: 16),
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Text('暂无同步日志', style: TextStyle(color: theme.hintColor)),
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],
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),
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)
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: Container(
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color: isDark ? const Color(0xFF1E1E1E) : const Color(0xFFF5F5F5),
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child: Scrollbar(
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controller: _scrollController,
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child: SingleChildScrollView(
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controller: _scrollController,
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padding: const EdgeInsets.all(12),
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child: SelectableText(
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_logContent,
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style: TextStyle(
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fontFamily: 'SourceCodePro',
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fontSize: 13,
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height: 1.5,
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color: isDark ? Colors.grey[300] : Colors.grey[900],
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),
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),
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),
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),
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),
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);
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}
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}
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