From 5936f08a92182a4cc3a0e72c2c044d4e480d2158 Mon Sep 17 00:00:00 2001
From: Kingkor Roy Tirtho <krtirtho@gmail.com>
Date: Mon, 17 Jun 2024 18:13:41 +0600
Subject: [PATCH] refactor(volumeProvider): use notifier and kvstore for
 persistence

---
 lib/provider/volume_provider.dart   | 29 ++++++++++-------------------
 lib/services/kv_store/kv_store.dart |  4 ++++
 2 files changed, 14 insertions(+), 19 deletions(-)

diff --git a/lib/provider/volume_provider.dart b/lib/provider/volume_provider.dart
index 464b5e42..ddd38fd9 100644
--- a/lib/provider/volume_provider.dart
+++ b/lib/provider/volume_provider.dart
@@ -2,31 +2,22 @@ import 'dart:async';
 
 import 'package:hooks_riverpod/hooks_riverpod.dart';
 import 'package:spotube/services/audio_player/audio_player.dart';
-import 'package:spotube/utils/persisted_state_notifier.dart';
+import 'package:spotube/services/kv_store/kv_store.dart';
 
-class VolumeProvider extends PersistedStateNotifier<double> {
-  VolumeProvider() : super(1, 'volume');
+class VolumeProvider extends Notifier<double> {
+  VolumeProvider();
+
+  @override
+  build() {
+    return KVStoreService.volume;
+  }
 
   Future<void> setVolume(double volume) async {
     state = volume;
     await audioPlayer.setVolume(volume);
-  }
-
-  @override
-  FutureOr<void> onInit() async {
-    await audioPlayer.setVolume(state);
-  }
-
-  @override
-  FutureOr<double> fromJson(Map<String, dynamic> json) {
-    return json['volume'] as double? ?? 0.0;
-  }
-
-  @override
-  Map<String, dynamic> toJson() {
-    return {'volume': state};
+    KVStoreService.setVolume(volume);
   }
 }
 
 final volumeProvider =
-    StateNotifierProvider<VolumeProvider, double>((ref) => VolumeProvider());
+    NotifierProvider<VolumeProvider, double>(() => VolumeProvider());
diff --git a/lib/services/kv_store/kv_store.dart b/lib/services/kv_store/kv_store.dart
index 6b19c032..2707ea4d 100644
--- a/lib/services/kv_store/kv_store.dart
+++ b/lib/services/kv_store/kv_store.dart
@@ -78,4 +78,8 @@ abstract class KVStoreService {
   static Future<void> setIVKey(IV iv) async {
     await sharedPreferences.setString('iv', iv.base64);
   }
+
+  static double get volume => sharedPreferences.getDouble('volume') ?? 1.0;
+  static Future<void> setVolume(double value) async =>
+      await sharedPreferences.setDouble('volume', value);
 }