82 lines
2.4 KiB
Dart
82 lines
2.4 KiB
Dart
import 'dart:convert';
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import 'dart:io';
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import 'package:tangocard_reader/models/yokutango_entry.dart';
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import 'package:tangocard_reader/screens/error.dart';
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import 'package:tangocard_reader/screens/loading.dart';
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import 'package:flutter/material.dart';
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import 'package:flutter/services.dart';
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class Home extends StatelessWidget {
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const Home({Key? key}) : super(key: key);
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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("よく単語"),
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centerTitle: true,
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),
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body: const TangocardList());
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}
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}
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class TangocardList extends StatelessWidget {
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const TangocardList({Key? key}) : super(key: key);
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Future<Map<File, List<YokutangoEntry>>> get tangocardFilePaths => rootBundle
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.loadString('AssetManifest.json')
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.then(
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(json) => jsonDecode(json)
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.keys
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.where((String key) =>
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key.contains('yokutango/json/') && key.contains('.json'))
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.toList(),
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)
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.then(
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(l) async => Map.fromIterables(
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l.map<File>((f) => File(f)),
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await Future.wait<List<YokutangoEntry>>(
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l
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.map<Future<List<YokutangoEntry>>>(
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(String t) => rootBundle
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.loadString(t)
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.then<List<YokutangoEntry>>((s) => jsonDecode(s)
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.map<YokutangoEntry>(
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(e) => YokutangoEntry.fromJson(e))
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.toList()),
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)
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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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return FutureBuilder(
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future: tangocardFilePaths,
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builder: (context, snapshot) {
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if (snapshot.hasError) {
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debugPrint(snapshot.error.toString());
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return const ErrorScreen();
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} else if (!snapshot.hasData) {
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return const LoadingScreen();
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}
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return ListView(
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children: (snapshot.data as Map<File, List<YokutangoEntry>>)
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.entries
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.map(
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(e) => ListTile(
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title: Text(
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"${e.key.uri.pathSegments.last} - ${e.value.length} cards"),
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onTap: () => Navigator.pushNamed(context, '/tangolist',
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arguments: e.key),
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),
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)
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.toList(),
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);
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},
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);
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}
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}
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