[#11] Update SecureStorageImpl

Author: Thieurom

lib/storage/secure_storage.dart

@@ -14,13 +14,12 @@ extension SecureStorageKeyExt on SecureStorageKey {
 abstract class SecureStorageModel {}
 
 enum SecureStorageError {
-  failToRead,
-  failToParse,
+  failToGetValue,
 }
 
 abstract class SecureStorage {
   Future<void> save<M extends SecureStorageModel>(
       {required M value, required SecureStorageKey key});
-  Future<M> get<M extends SecureStorageModel>(
-      {required String value, required SecureStorageKey key});
+  Future<M> getValue<M extends SecureStorageModel>(
+      {required SecureStorageKey key});
 }

lib/storage/secure_storage_impl.dart

@@ -15,19 +15,14 @@ class SecureStorageImpl extends SecureStorage {
   SecureStorageImpl(this._storage);
 
   @override
-  Future<M> get<M extends SecureStorageModel>(
-      {required String value, required SecureStorageKey key}) async {
+  Future<M> getValue<M extends SecureStorageModel>(
+      {required SecureStorageKey key}) async {
     final rawValue = await _storage.read(key: key.string);
     if (rawValue == null) {
-      throw SecureStorageError.failToRead;
+      throw SecureStorageError.failToGetValue;
     }
 
-    final decodedValue = await jsonDecode(rawValue);
-    if (decodedValue == null) {
-      throw SecureStorageError.failToParse;
-    }
-
-    return decodedValue;
+    return await jsonDecode(rawValue);
   }
 
   @override