1 files changed, 41 insertions, 0 deletions
diff --git a/lib/util/isar_handler.dart b/lib/util/isar_handler.dart
new file mode 100644
index 0000000..8e26fc9
--- /dev/null
+++ b/lib/util/isar_handler.dart
@@ -0,0 +1,41 @@
+import 'package:isar/isar.dart';
+
+import 'package:kulinar_app/models/recipe_class.dart';
+
+/// Handles user data persistence related app storage
+class IsarHandler {
+  late Future<Isar> db;
+
+  IsarHandler() {
+    db = _openDB();
+  }
+
+  /// Stores the given `data` as a string with the `key`.
+  Future<int> save(Recipe recipe) async {
+    final isar = await db;
+    return await isar.writeTxn<int>(() => isar.recipes.put(recipe));
+  }
+
+  /// Fetches all recipes
+  Future<List<Recipe>> load() async {
+    final isar = await db;
+    return await isar.recipes.where().findAll();
+  }
+
+  /// Fetches the Recipe related to the given `title`.
+  Future<Recipe?> fetch(String title) async {
+    final isar = await db;
+    return await isar.recipes.filter().titleEqualTo(title).findFirst();
+  }
+
+  Future<Isar> _openDB() async {
+    if (Isar.instanceNames.isEmpty) {
+      return await Isar.open(
+        [RecipeSchema],
+        inspector: true,
+      );
+    }
+
+    return Future.value(Isar.getInstance());
+  }
+}