Add kanji page

lib/screens/home.dart

@@ -1,81 +1,37 @@
-import 'dart:convert';
-import 'dart:io';
-
-import 'package:tangocard_reader/models/yokutango_entry.dart';
-import 'package:tangocard_reader/screens/error.dart';
-import 'package:tangocard_reader/screens/loading.dart';
 import 'package:flutter/material.dart';
-import 'package:flutter/services.dart';
+import 'package:tangocard_reader/service/tangocard_files.dart';
 
-class Home extends StatelessWidget {
+import 'pages/tango_set_list.dart';
+
+class Home extends StatefulWidget {
   const Home({Key? key}) : super(key: key);
 
   @override
-  Widget build(BuildContext context) {
-    return Scaffold(
+  State<Home> createState() => _HomeState();
+}
+
+class _HomeState extends State<Home> {
+  int page = 0;
+
+  final _pages = [
+    TangoSetList(files: tangocardFilePaths, route: '/list/tango',),
+    TangoSetList(files: kanjicardFilePaths, route: '/list/kanji',),
+  ];
+
+  @override
+  Widget build(BuildContext context) => Scaffold(
         appBar: AppBar(
           title: const Text("よく単語"),
           centerTitle: true,
         ),
-        body: const TangocardList());
-  }
-}
-
-class TangocardList extends StatelessWidget {
-  const TangocardList({Key? key}) : super(key: key);
-
-  Future<Map<File, List<YokutangoEntry>>> get tangocardFilePaths => rootBundle
-      .loadString('AssetManifest.json')
-      .then(
-        (json) => jsonDecode(json)
-            .keys
-            .where((String key) =>
-                key.contains('yokutango/json/') && key.contains('.json'))
-            .toList(),
-      )
-      .then(
-        (l) async => Map.fromIterables(
-          l.map<File>((f) => File(f)),
-          await Future.wait<List<YokutangoEntry>>(
-            l
-                .map<Future<List<YokutangoEntry>>>(
-                  (String t) => rootBundle
-                      .loadString(t)
-                      .then<List<YokutangoEntry>>((s) => jsonDecode(s)
-                          .map<YokutangoEntry>(
-                              (e) => YokutangoEntry.fromJson(e))
-                          .toList()),
-                )
-          ),
+        body: _pages[page],
+        bottomNavigationBar: BottomNavigationBar(
+          onTap: (int index) => setState(() => page = index),
+          currentIndex: page,
+          items: const [
+            BottomNavigationBarItem(label: 'Tango', icon: Icon(Icons.style)),
+            BottomNavigationBarItem(label: 'Kanji', icon: Text('漢字')),
+          ],
         ),
       );
-
-  @override
-  Widget build(BuildContext context) {
-    return FutureBuilder(
-      future: tangocardFilePaths,
-      builder: (context, snapshot) {
-        if (snapshot.hasError) {
-          debugPrint(snapshot.error.toString());
-          return const ErrorScreen();
-        } else if (!snapshot.hasData) {
-          return const LoadingScreen();
-        }
-
-        return ListView(
-          children: (snapshot.data as Map<File, List<YokutangoEntry>>)
-              .entries
-              .map(
-                (e) => ListTile(
-                  title: Text(
-                      "${e.key.uri.pathSegments.last} - ${e.value.length} cards"),
-                  onTap: () => Navigator.pushNamed(context, '/tangolist',
-                      arguments: e.key),
-                ),
-              )
-              .toList(),
-        );
-      },
-    );
-  }
 }

lib/screens/pages/kanji_list.dart

@@ -1,24 +1,23 @@
 import 'dart:convert';
 import 'dart:io';
 
-import 'package:tangocard_reader/models/router_args.dart';
-import 'package:tangocard_reader/models/yokutango_entry.dart';
-import 'package:tangocard_reader/screens/error.dart';
-import 'package:tangocard_reader/screens/loading.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:tangocard_reader/models/data_entry.dart';
+import 'package:tangocard_reader/models/router_args.dart';
+import 'package:tangocard_reader/screens/misc/error.dart';
+import 'package:tangocard_reader/screens/misc/loading.dart';
 
-class TangoList extends StatelessWidget {
+class KanjiList extends StatelessWidget {
   final File file;
 
-  const TangoList({
-    required this.file,
+  const KanjiList({
     Key? key,
+    required this.file,
   }) : super(key: key);
 
   @override
-  Widget build(BuildContext context) {
-    return Scaffold(
+  Widget build(BuildContext context) => Scaffold(
       appBar: AppBar(
         title: Text(file.uri.pathSegments.last),
       ),
@@ -33,7 +32,7 @@ class TangoList extends StatelessWidget {
           }
 
           final entries = (jsonSnapshot.data as List)
-              .map((e) => YokutangoEntry.fromJson(e))
+              .map((e) => KanjiEntry.fromJson(e))
               .toList();
 
           return ListView(
@@ -44,7 +43,7 @@ class TangoList extends StatelessWidget {
                     i,
                     ListTile(
                       title: Text(e.toString()),
-                      onTap: () => Navigator.pushNamed(context, '/benkyou',
+                      onTap: () => Navigator.pushNamed(context, '/benkyou/kanji',
                           arguments: BenkyouArgs(cards: entries, index: i)),
                     ),
                   ),
@@ -53,7 +52,7 @@ class TangoList extends StatelessWidget {
                 .toList(),
           );
         },
-      ),
+      )
     );
-  }
+
 }

lib/screens/pages/tango_list.dart

@@ -0,0 +1,61 @@
+import 'dart:convert';
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:flutter/services.dart';
+import 'package:tangocard_reader/models/data_entry.dart';
+import 'package:tangocard_reader/models/router_args.dart';
+import 'package:tangocard_reader/screens/misc/error.dart';
+import 'package:tangocard_reader/screens/misc/loading.dart';
+
+class TangoList extends StatelessWidget {
+  final File file;
+
+  const TangoList({
+    required this.file,
+    Key? key,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Scaffold(
+        appBar: AppBar(
+          title: Text(file.uri.pathSegments.last),
+        ),
+        body: FutureBuilder(
+          future:
+              rootBundle.loadString(file.path).then((data) => jsonDecode(data)),
+          builder: (context, jsonSnapshot) {
+            if (jsonSnapshot.hasError) {
+              return const ErrorScreen();
+            } else if (!jsonSnapshot.hasData) {
+              return const LoadingScreen();
+            }
+
+            final entries = (jsonSnapshot.data as List)
+                .map((e) => YokutangoEntry.fromJson(e))
+                .toList();
+
+            return ListView(
+              children: entries
+                  .asMap()
+                  .map(
+                    (i, e) => MapEntry(
+                      i,
+                      ListTile(
+                        title: Text(e.toString()),
+                        onTap: () => Navigator.pushNamed(
+                          context,
+                          '/benkyou/tango',
+                          arguments: BenkyouArgs(cards: entries, index: i),
+                        ),
+                      ),
+                    ),
+                  )
+                  .values
+                  .toList(),
+            );
+          },
+        ));
+  }
+}

lib/screens/pages/tango_set_list.dart

@@ -0,0 +1,46 @@
+import 'dart:io';
+
+import 'package:flutter/material.dart';
+import 'package:tangocard_reader/screens/misc/error.dart';
+import 'package:tangocard_reader/screens/misc/loading.dart';
+
+class TangoSetList extends StatelessWidget {
+  final String route;
+  final Future<Map<File, List>> files;
+
+  const TangoSetList({
+    Key? key,
+    required this.route,
+    required this.files,
+  }) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) => FutureBuilder(
+        future: files,
+        builder: (context, snapshot) {
+          if (snapshot.hasError) {
+            debugPrint(snapshot.error.toString());
+            return const ErrorScreen();
+          } else if (!snapshot.hasData) {
+            return const LoadingScreen();
+          }
+
+          return ListView(
+            children: (snapshot.data as Map<File, List>)
+                .entries
+                .map(
+                  (e) => ListTile(
+                    title: Text(
+                        "${e.key.uri.pathSegments.last} - ${e.value.length} cards"),
+                    onTap: () => Navigator.pushNamed(
+                      context,
+                      route,
+                      arguments: e.key,
+                    ),
+                  ),
+                )
+                .toList(),
+          );
+        },
+      );
+}

lib/screens/practise/flashcard.dart

@@ -1,9 +1,9 @@
 import 'dart:math';
 
 import 'package:tangocard_reader/components/flashcard.dart';
-import 'package:tangocard_reader/models/yokutango_entry.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
+import 'package:tangocard_reader/models/data_entry.dart';
 
 class FlashcardView extends StatefulWidget {
   final List<YokutangoEntry> cards;