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