possible to exclude levels and change how questions are served

lib/src/services/deck_repository.dart

@@ -103,6 +103,7 @@ class DeckRepository {
         readingType: r[DbConstants.readingTypeColumn] as String?,
         srsStage: r[DbConstants.srsStageColumn] as int,
         lastAsked: DateTime.parse(r[DbConstants.lastAskedColumn] as String),
+        disabled: (r[DbConstants.disabledColumn] as int? ?? 0) == 1,
       );
       srsItemsByKanjiId.putIfAbsent(srsItem.subjectId, () => []).add(srsItem);
     }
@@ -118,17 +119,53 @@ class DeckRepository {
     return kanjiItems;
   }
 
+  Future<void> updateSrsItems(List<SrsItem> items) async {
+    final db = await DatabaseHelper().db;
+    final batch = db.batch();
+    for (final item in items) {
+      var where = '${DbConstants.kanjiIdColumn} = ? AND ${DbConstants.quizModeColumn} = ?';
+      final whereArgs = [item.subjectId, item.quizMode.toString()];
+      if (item.readingType != null) {
+        where += ' AND ${DbConstants.readingTypeColumn} = ?';
+        whereArgs.add(item.readingType!);
+      } else {
+        where += ' AND ${DbConstants.readingTypeColumn} IS NULL';
+      }
+
+      batch.update(
+        DbConstants.srsItemsTable,
+        {
+          DbConstants.srsStageColumn: item.srsStage,
+          DbConstants.lastAskedColumn: item.lastAsked.toIso8601String(),
+          DbConstants.disabledColumn: item.disabled ? 1 : 0,
+        },
+        where: where,
+        whereArgs: whereArgs,
+      );
+    }
+    await batch.commit(noResult: true);
+  }
+
   Future<void> updateSrsItem(SrsItem item) async {
     final db = await DatabaseHelper().db;
+    var where = '${DbConstants.kanjiIdColumn} = ? AND ${DbConstants.quizModeColumn} = ?';
+    final whereArgs = [item.subjectId, item.quizMode.toString()];
+    if (item.readingType != null) {
+      where += ' AND ${DbConstants.readingTypeColumn} = ?';
+      whereArgs.add(item.readingType!);
+    } else {
+      where += ' AND ${DbConstants.readingTypeColumn} IS NULL';
+    }
+
     await db.update(
       DbConstants.srsItemsTable,
       {
         DbConstants.srsStageColumn: item.srsStage,
         DbConstants.lastAskedColumn: item.lastAsked.toIso8601String(),
+        DbConstants.disabledColumn: item.disabled ? 1 : 0,
       },
-      where:
-          '${DbConstants.kanjiIdColumn} = ? AND ${DbConstants.quizModeColumn} = ? AND ${DbConstants.readingTypeColumn} = ?',
-      whereArgs: [item.subjectId, item.quizMode.toString(), item.readingType],
+      where: where,
+      whereArgs: whereArgs,
     );
   }
 
@@ -140,6 +177,7 @@ class DeckRepository {
       DbConstants.readingTypeColumn: item.readingType,
       DbConstants.srsStageColumn: item.srsStage,
       DbConstants.lastAskedColumn: item.lastAsked.toIso8601String(),
+      DbConstants.disabledColumn: item.disabled ? 1 : 0,
     }, conflictAlgorithm: ConflictAlgorithm.replace);
   }