Update subscription model

lib/models/subscription.dart

@@ -3,7 +3,7 @@ import 'dart:convert';
 class Subscription {
   final int id;
   final String productID;
-  final int storageInMBs;
+  final int storage;
   final String originalTransactionID;
   final String paymentProvider;
   final int expiryTime;
@@ -11,7 +11,7 @@ class Subscription {
   Subscription({
     this.id,
     this.productID,
-    this.storageInMBs,
+    this.storage,
     this.originalTransactionID,
     this.paymentProvider,
     this.expiryTime,
@@ -24,7 +24,7 @@ class Subscription {
   Subscription copyWith({
     int id,
     int productID,
-    int storageInMBs,
+    int storage,
     int originalTransactionID,
     int paymentProvider,
     int expiryTime,
@@ -32,7 +32,7 @@ class Subscription {
     return Subscription(
       id: id ?? this.id,
       productID: productID ?? this.productID,
-      storageInMBs: storageInMBs ?? this.storageInMBs,
+      storage: storage ?? this.storage,
       originalTransactionID:
           originalTransactionID ?? this.originalTransactionID,
       paymentProvider: paymentProvider ?? this.paymentProvider,
@@ -44,7 +44,7 @@ class Subscription {
     return {
       'id': id,
       'productID': productID,
-      'storageInMBs': storageInMBs,
+      'storage': storage,
       'originalTransactionID': originalTransactionID,
       'paymentProvider': paymentProvider,
       'expiryTime': expiryTime,
@@ -57,7 +57,7 @@ class Subscription {
     return Subscription(
       id: map['id'],
       productID: map['productID'],
-      storageInMBs: map['storageInMBs'],
+      storage: map['storage'],
       originalTransactionID: map['originalTransactionID'],
       paymentProvider: map['paymentProvider'],
       expiryTime: map['expiryTime'],
@@ -71,7 +71,7 @@ class Subscription {
 
   @override
   String toString() {
-    return 'Subscription(id: $id, productID: $productID, storageInMBs: $storageInMBs, originalTransactionID: $originalTransactionID, paymentProvider: $paymentProvider, expiryTime: $expiryTime)';
+    return 'Subscription(id: $id, productID: $productID, storage: $storage, originalTransactionID: $originalTransactionID, paymentProvider: $paymentProvider, expiryTime: $expiryTime)';
   }
 
   @override
@@ -81,7 +81,7 @@ class Subscription {
     return o is Subscription &&
         o.id == id &&
         o.productID == productID &&
-        o.storageInMBs == storageInMBs &&
+        o.storage == storage &&
         o.originalTransactionID == originalTransactionID &&
         o.paymentProvider == paymentProvider &&
         o.expiryTime == expiryTime;
@@ -91,7 +91,7 @@ class Subscription {
   int get hashCode {
     return id.hashCode ^
         productID.hashCode ^
-        storageInMBs.hashCode ^
+        storage.hashCode ^
         originalTransactionID.hashCode ^
         paymentProvider.hashCode ^
         expiryTime.hashCode;

lib/services/billing_service.dart

@@ -108,7 +108,10 @@ class BillingService {
       final subscription = Subscription.fromMap(response.data["subscription"]);
       await setSubscription(subscription);
       return subscription;
-    } catch (e) {
+    } on DioError catch (e) {
+      if (e.response.statusCode == 404) {
+        _prefs.remove(subscriptionKey);
+      }
       throw e;
     }
   }

lib/ui/sign_in_header_widget.dart

@@ -49,7 +49,7 @@ class _SignInHeaderState extends State<SignInHeader> {
       return FutureBuilder(
         future: BillingService.instance.fetchSubscription(),
         builder: (BuildContext context, AsyncSnapshot snapshot) {
-          if (snapshot.hasData) {
+          if (snapshot.hasData || snapshot.hasError) {
             if (BillingService.instance.hasActiveSubscription()) {
               return Container();
             }

lib/ui/subscription_page.dart

@@ -52,12 +52,10 @@ class _SubscriptionPageState extends State<SubscriptionPage> {
             Bus.instance.fire(UserAuthenticatedEvent());
             final isUpgrade = _currentSubscription != null &&
                 _currentSubscription.isValid() &&
-                newSubscription.storageInMBs >
-                    _currentSubscription.storageInMBs;
+                newSubscription.storage > _currentSubscription.storage;
             final isDowngrade = _currentSubscription != null &&
                 _currentSubscription.isValid() &&
-                newSubscription.storageInMBs <
-                    _currentSubscription.storageInMBs;
+                newSubscription.storage < _currentSubscription.storage;
             String text = "your photos and videos will now be backed up";
             if (isUpgrade) {
               text = "your plan was successfully upgraded";