lib/search/filter_kanji: init

2025-05-22 19:45:10 +02:00
parent 0ea8331298
commit fdd15df344
2 changed files with 31 additions and 0 deletions
@@ -0,0 +1,23 @@
+import 'package:jadb/_data_ingestion/kanjidic/table_names.dart';
+import 'package:sqflite_common/sqflite.dart';
+
+Future<List<String>> filterKanjiWithDbConnection(
+  DatabaseExecutor connection,
+  List<String> kanji,
+  bool deduplicate,
+) async {
+  final Set<String> filteredKanji = await connection.rawQuery(
+    '''
+      SELECT "literal"
+      FROM "${KANJIDICTableNames.character}"
+      WHERE "literal" IN (${kanji.map((_) => '?').join(',')})
+    ''',
+    kanji,
+  ).then((value) => value.map((e) => e['literal'] as String).toSet());
+
+  if (deduplicate) {
+    return filteredKanji.toList();
+  } else {
+    return kanji.where((k) => !filteredKanji.contains(k)).toList();
+  }
+}