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mobile-v2/lib/domain/models/store.model.dart

@@ -0,0 +1,70 @@
+/// Key for each possible value in the `Store`.
+/// Defines the data type for each value
+enum StoreKey<T> {
+  // Server endpoint related stores
+  accessToken<String>(0, type: String),
+  serverEndpoint<String>(1, type: String),
+  ;
+
+  const StoreKey(this.id, {required this.type});
+  final int id;
+  final Type type;
+}
+
+class StoreValue {
+  final int id;
+  final int? intValue;
+  final String? stringValue;
+
+  const StoreValue({required this.id, this.intValue, this.stringValue});
+
+  @override
+  bool operator ==(covariant StoreValue other) {
+    if (identical(this, other)) return true;
+
+    return other.hashCode == hashCode;
+  }
+
+  @override
+  int get hashCode => id.hashCode ^ intValue.hashCode ^ stringValue.hashCode;
+
+  T? extract<T>(Type type) {
+    switch (type) {
+      case const (int):
+        return intValue as T?;
+      case const (bool):
+        return intValue == null ? null : (intValue! == 1) as T;
+      case const (DateTime):
+        return intValue == null
+            ? null
+            : DateTime.fromMicrosecondsSinceEpoch(intValue!) as T;
+      case const (String):
+        return stringValue as T?;
+      default:
+        throw UnsupportedError("Unknown Store Key type");
+    }
+  }
+
+  static StoreValue of<T>(StoreKey<T> key, T? value) {
+    int? i;
+    String? s;
+
+    switch (key.type) {
+      case const (int):
+        i = value as int?;
+        break;
+      case const (bool):
+        i = value == null ? null : (value == true ? 1 : 0);
+        break;
+      case const (DateTime):
+        i = value == null ? null : (value as DateTime).microsecondsSinceEpoch;
+        break;
+      case const (String):
+        s = value as String?;
+        break;
+      default:
+        throw UnsupportedError("Unknown Store Key type");
+    }
+    return StoreValue(id: key.id, intValue: i, stringValue: s);
+  }
+}