From ca9883b6c0c2dfe91f77462bc4909c5305e1126a Mon Sep 17 00:00:00 2001
From: mmbyday <mmbyday@protonmail.com>
Date: Tue, 14 May 2019 20:21:09 -0700
Subject: [PATCH] Fix restore height when using stagenet/testnet

---
 js/Wizard.js                    | 16 ++++++++++++----
 pages/settings/SettingsInfo.qml |  3 ++-
 wizard/WizardCreateDevice1.qml  |  3 ++-
 wizard/WizardRestoreWallet1.qml |  3 ++-
 4 files changed, 18 insertions(+), 7 deletions(-)

diff --git a/js/Wizard.js b/js/Wizard.js
index 44954c8a..8bdc4616 100644
--- a/js/Wizard.js
+++ b/js/Wizard.js
@@ -134,15 +134,15 @@ function restoreWalletCheckViewSpendAddress(walletmanager, nettype, viewkey, spe
 
 //usage: getApproximateBlockchainHeight("March 18 2016") or getApproximateBlockchainHeight("2016-11-11")
 //returns estimated block height with 1 month buffer prior to requested date.
-function getApproximateBlockchainHeight(_date){
+function getApproximateBlockchainHeight(_date, _nettype){
     // time of monero birth 2014-04-18 10:49:53 (1397818193)
-    var moneroBirthTime = 1397818193;
+    var moneroBirthTime = _nettype == "Mainnet" ? 1397818193 : _nettype == "Testnet" ? 1410295020 : 1518932025;
     // avg seconds per block in v1
     var secondsPerBlockV1 = 60;
     // time of v2 fork 2016-03-23 15:57:38 (1458748658)
-    var forkTime = 1458748658;
+    var forkTime = _nettype == "Mainnet" ? 1458748658 : _nettype == "Testnet" ? 1448285909 : 1520937818;
     // v2 fork block
-    var forkBlock = 1009827;
+    var forkBlock = _nettype == "Mainnet" ? 1009827 : _nettype == "Testnet" ? 624634 : 32000;
     // avg seconds per block in V2
     var secondsPerBlockV2 = 120;
     // time in UTC
@@ -166,6 +166,14 @@ function getApproximateBlockchainHeight(_date){
         console.log("Calculated blockchain height: " + approxBlockchainHeight );
         secondsPerBlock = secondsPerBlockV2;
     }
+
+    if(_nettype == "Testnet"){
+        // testnet got some huge rollbacks, so the estimation is way off
+        var approximateTestnetRolledBackBlocks = 303967;
+        if(approxBlockchainHeight > approximateTestnetRolledBackBlocks)
+            approxBlockchainHeight -= approximateTestnetRolledBackBlocks
+    }
+
     var blocksPerMonth = 60*60*24*30/secondsPerBlock;
     if(approxBlockchainHeight - blocksPerMonth > 0){
         return approxBlockchainHeight - blocksPerMonth;
diff --git a/pages/settings/SettingsInfo.qml b/pages/settings/SettingsInfo.qml
index 9da336bf..de6a28d2 100644
--- a/pages/settings/SettingsInfo.qml
+++ b/pages/settings/SettingsInfo.qml
@@ -32,6 +32,7 @@ import QtQuick.Controls 2.0
 import QtQuick.Dialogs 1.2
 
 import "../../js/Wizard.js" as Wizard
+import "../../js/Utils.js" as Utils
 import "../../version.js" as Version
 import "../../components" as MoneroComponents
 
@@ -184,7 +185,7 @@ Rectangle {
                             var restoreHeightText = inputDialog.inputText;
                             // Parse date string or restore height as integer
                             if(restoreHeightText.indexOf('-') === 4 && restoreHeightText.length === 10) {
-                                _restoreHeight = Wizard.getApproximateBlockchainHeight(restoreHeightText);
+                                _restoreHeight = Wizard.getApproximateBlockchainHeight(restoreHeightText, Utils.netTypeToString());
                             } else {
                                 _restoreHeight = parseInt(restoreHeightText)
                             }
diff --git a/wizard/WizardCreateDevice1.qml b/wizard/WizardCreateDevice1.qml
index 9a2191bc..21fc5a9a 100644
--- a/wizard/WizardCreateDevice1.qml
+++ b/wizard/WizardCreateDevice1.qml
@@ -33,6 +33,7 @@ import QtQuick.Controls 2.0
 
 import moneroComponents.Wallet 1.0
 import "../js/Wizard.js" as Wizard
+import "../js/Utils.js" as Utils
 import "../components"
 import "../components" as MoneroComponents
 
@@ -195,7 +196,7 @@ Rectangle {
                     if(restoreHeight.text){
                         // Parse date string or restore height as integer
                         if(restoreHeight.text.indexOf('-') === 4 && restoreHeight.text.length === 10){
-                            _restoreHeight = Wizard.getApproximateBlockchainHeight(restoreHeight.text);
+                            _restoreHeight = Wizard.getApproximateBlockchainHeight(restoreHeight.text, Utils.netTypeToString());
                         } else {
                             _restoreHeight = parseInt(restoreHeight.text)
                         }
diff --git a/wizard/WizardRestoreWallet1.qml b/wizard/WizardRestoreWallet1.qml
index a41b6a16..c626742f 100644
--- a/wizard/WizardRestoreWallet1.qml
+++ b/wizard/WizardRestoreWallet1.qml
@@ -31,6 +31,7 @@ import QtQuick.Layouts 1.2
 import QtQuick.Controls 2.0
 
 import "../js/Wizard.js" as Wizard
+import "../js/Utils.js" as Utils
 import "../components" as MoneroComponents
 
 Rectangle {
@@ -292,7 +293,7 @@ Rectangle {
                     if(restoreHeight.text){
                         // Parse date string or restore height as integer
                         if(restoreHeight.text.indexOf('-') === 4 && restoreHeight.text.length === 10){
-                            _restoreHeight = Wizard.getApproximateBlockchainHeight(restoreHeight.text);
+                            _restoreHeight = Wizard.getApproximateBlockchainHeight(restoreHeight.text, Utils.netTypeToString());
                         } else {
                             _restoreHeight = parseInt(restoreHeight.text)
                         }