From 990efc8f7bb583c9d1abcc4976025879ab4a38f9 Mon Sep 17 00:00:00 2001
From: Vishesh Handa <me@vhanda.in>
Date: Wed, 12 Aug 2020 19:05:58 +0200
Subject: [PATCH] Add a 'Restore Purchase' button

Instead of doing it automatically,

Fixes #211
---
 assets/langs/en.yaml             |  1 +
 lib/screens/purchase_screen.dart |  3 ++-
 lib/widgets/purchase_widget.dart | 35 +++++++++++++++++++++++++-------
 3 files changed, 31 insertions(+), 8 deletions(-)

diff --git a/assets/langs/en.yaml b/assets/langs/en.yaml
index e453cfdf..cc52b519 100644
--- a/assets/langs/en.yaml
+++ b/assets/langs/en.yaml
@@ -221,3 +221,4 @@ purchase_screen:
 Paying a monthly subscription helps you support development and gives you access to
 a number of "Pro" only features. We operate on a "pay what you want model". No matter what you pay
 you will get access to all the Pro features.'
+  restore: Restore Purchase
diff --git a/lib/screens/purchase_screen.dart b/lib/screens/purchase_screen.dart
index 6f46d506..1bfc90dc 100644
--- a/lib/screens/purchase_screen.dart
+++ b/lib/screens/purchase_screen.dart
@@ -23,7 +23,6 @@ class PurchaseScreen extends StatelessWidget {
   }
 
   Widget buildBody(BuildContext context) {
-
     Widget w = Column(
       children: <Widget>[
         Text(
@@ -43,6 +42,8 @@ class PurchaseScreen extends StatelessWidget {
         ),
         const SizedBox(height: 64.0),
         PurchaseWidget(),
+        const SizedBox(height: 32.0),
+        RestorePurchaseButton(),
       ],
       mainAxisAlignment: MainAxisAlignment.start,
       mainAxisSize: MainAxisSize.min,
diff --git a/lib/widgets/purchase_widget.dart b/lib/widgets/purchase_widget.dart
index 7d109812..f3ed2873 100644
--- a/lib/widgets/purchase_widget.dart
+++ b/lib/widgets/purchase_widget.dart
@@ -1,6 +1,7 @@
 import 'dart:async';
 import 'dart:io';
 
+import 'package:easy_localization/easy_localization.dart';
 import 'package:flutter/material.dart';
 
 import 'package:in_app_purchase/in_app_purchase.dart';
@@ -74,13 +75,6 @@ class _PurchaseWidgetState extends State<PurchaseWidget> {
   }
 
   Future<void> initPlatformState() async {
-    // In parallel check if the purchase has been made
-    InAppPurchases.confirmProPurchase().then((void _) {
-      if (Settings.instance.proMode) {
-        Navigator.of(context).pop();
-      }
-    });
-
     final iapCon = InAppPurchaseConnection.instance;
 
     final bool available = await iapCon.isAvailable();
@@ -335,3 +329,30 @@ class PurchaseFailedDialog extends StatelessWidget {
     );
   }
 }
+
+class RestorePurchaseButton extends StatefulWidget {
+  @override
+  _RestorePurchaseButtonState createState() => _RestorePurchaseButtonState();
+}
+
+class _RestorePurchaseButtonState extends State<RestorePurchaseButton> {
+  bool computing = false;
+
+  @override
+  Widget build(BuildContext context) {
+    var text = computing ? '...' : tr('purchase_screen.restore');
+
+    return OutlineButton(
+      child: Text(text),
+      onPressed: () async {
+        setState(() {
+          computing = true;
+        });
+        await InAppPurchases.confirmProPurchase();
+        if (Settings.instance.proMode) {
+          Navigator.of(context).pop();
+        }
+      },
+    );
+  }
+}