112 lines
3.8 KiB
Dart
112 lines
3.8 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:flutter/services.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/errorView.dart';
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import 'jsonViewer.dart';
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class CacheView extends StatefulWidget {
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final collection = "MarianumMobile";
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const CacheView({Key? key}) : super(key: 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(collection).delete();
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}
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Future<int> totalSize() async {
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var data = await Localstore.instance.collection(collection).get();
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if(data!.length <= 1) return jsonEncode(data.values.first).length * 8;
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return data.values.reduce((a, b) => jsonEncode(a).length + jsonEncode(b).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(widget.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) {
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return Scaffold(
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appBar: AppBar(
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title: const Text("Lokaler cache"),
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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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Map<String, dynamic> element = snapshot.data![snapshot.data!.keys.elementAt(index)];
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String filename = snapshot.data!.keys.elementAt(index).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']).fromNow()}"),
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trailing: const Icon(Icons.arrow_right),
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onTap: () {
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Navigator.push(context, MaterialPageRoute(builder: (context) {
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return JsonViewer(title: filename, data: jsonDecode(element['json']));
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},));
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},
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onLongPress: () {
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showDialog(context: context, builder: (context) {
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return SimpleDialog(
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children: [
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const ListTile(
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leading: Icon(Icons.delete_forever),
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title: Text("Diese Datei löschen"),
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),
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ListTile(
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leading: const Icon(Icons.copy),
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title: const Text("Dateitext kopieren"),
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onTap: () {
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Clipboard.setData(ClipboardData(text: jsonEncode(element)));
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Navigator.of(context).pop();
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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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);
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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: ErrorView(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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}
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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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