Files
Client/lib/widget/debug/cache_view.dart
T

86 lines
2.8 KiB
Dart

import 'dart:async';
import 'dart:convert';
import 'package:filesize/filesize.dart';
import 'package:flutter/material.dart';
import 'package:jiffy/jiffy.dart';
import 'package:localstore/localstore.dart';
import '../../../widget/placeholder_view.dart';
import '../../api/request_cache.dart';
import 'json_viewer.dart';
class CacheView extends StatefulWidget {
const CacheView({super.key});
@override
State<CacheView> createState() => _CacheViewState();
Future<void> clear() async {
await Localstore.instance.collection(RequestCache.collection).delete();
}
Future<int> totalSize() async {
final data = await Localstore.instance.collection(RequestCache.collection).get();
if (data == null || data.isEmpty) return 0;
return data.values.fold<int>(0, (sum, value) => sum + jsonEncode(value).length) * 8;
}
}
class _CacheViewState extends State<CacheView> {
final Localstore storage = Localstore.instance;
late Future<Map<String, dynamic>?> files;
@override
void initState() {
files = Localstore.instance.collection(RequestCache.collection).get();
super.initState();
}
@override
Widget build(BuildContext context) => Scaffold(
appBar: AppBar(
title: const Text('Cache storage'),
),
body: FutureBuilder(
future: files,
builder: (context, snapshot) {
if(snapshot.hasData) {
return ListView.builder(
itemCount: snapshot.data!.length,
itemBuilder: (context, index) {
final key = snapshot.data!.keys.elementAt(index);
final element = snapshot.data![key] as Map<String, dynamic>;
final filename = key.split('/').last;
return ListTile(
leading: const Icon(Icons.text_snippet_outlined),
title: Text(filename),
subtitle: Text('${filesize(jsonEncode(element).length * 8)}, ${Jiffy.parseFromMillisecondsSinceEpoch(element['lastupdate'] as int).fromNow()}'),
trailing: const Icon(Icons.arrow_right),
onTap: () => JsonViewer.asDialog(context, jsonDecode(element['json'] as String) as Map<String, dynamic>),
);
},
);
} else if(snapshot.connectionState != ConnectionState.done) {
return const Center(
child: CircularProgressIndicator()
);
} else {
return const Center(
child: PlaceholderView(icon: Icons.hourglass_empty, text: 'Keine Daten'),
);
}
},
),
);
}
extension FutureExtension<T> on Future<T> {
bool isCompleted() {
final completer = Completer<T>();
then(completer.complete).catchError(completer.completeError);
return completer.isCompleted;
}
}