v1

lib/src/models/kanji_item.dart

@@ -0,0 +1,62 @@
+class KanjiItem {
+  final int id;
+  final String characters;
+  final List<String> meanings;
+  final List<String> onyomi;
+  final List<String> kunyomi;
+
+  KanjiItem({
+    required this.id,
+    required this.characters,
+    required this.meanings,
+    required this.onyomi,
+    required this.kunyomi,
+  });
+
+  factory KanjiItem.fromSubject(Map<String, dynamic> subj) {
+    final int id = subj['id'] as int;
+    final data = subj['data'] as Map<String, dynamic>;
+    final String characters = (data['characters'] ?? '') as String;
+    final List<String> meanings = <String>[];
+    final List<String> onyomi = <String>[];
+    final List<String> kunyomi = <String>[];
+
+    if (data['meanings'] != null) {
+      for (final m in data['meanings'] as List) {
+        meanings.add((m['meaning'] as String).toLowerCase());
+      }
+    }
+
+    if (data['readings'] != null) {
+      for (final r in data['readings'] as List) {
+        final typ = r['type'] as String? ?? '';
+        final reading = r['reading'] as String? ?? '';
+        if (typ == 'onyomi') {
+          onyomi.add(_katakanaToHiragana(reading));
+        } else if (typ == 'kunyomi') {
+          kunyomi.add(reading);
+        }
+      }
+    }
+
+    return KanjiItem(
+      id: id,
+      characters: characters,
+      meanings: meanings,
+      onyomi: onyomi,
+      kunyomi: kunyomi,
+    );
+  }
+}
+
+String _katakanaToHiragana(String input) {
+  final buf = StringBuffer();
+  for (final r in input.runes) {
+    if (r >= 0x30A1 && r <= 0x30FA) {
+      buf.writeCharCode(r - 0x60);
+    } else {
+      buf.writeCharCode(r);
+    }
+  }
+  return buf.toString();
+}