From e9924bded2fa150f985b067adb3fb67516b81c03 Mon Sep 17 00:00:00 2001
From: murdle <murdle@proton.me>
Date: Thu, 1 May 2025 16:57:15 -0700
Subject: [PATCH] add registry saving and launching

---
 RobloxLegacy/AppData/IAppData.cs   |  3 ++-
 RobloxLegacy/AppData/StudioData.cs |  3 ++-
 RobloxLegacy/Program.cs            |  3 ++-
 RobloxLegacy/RobloxLegacy.csproj   |  2 +-
 RobloxLegacy/VersionManager.cs     | 42 ++++++++++++++++++++++++------
 5 files changed, 41 insertions(+), 12 deletions(-)

diff --git a/RobloxLegacy/AppData/IAppData.cs b/RobloxLegacy/AppData/IAppData.cs
index f97b578..2bee8c5 100644
--- a/RobloxLegacy/AppData/IAppData.cs
+++ b/RobloxLegacy/AppData/IAppData.cs
@@ -2,6 +2,7 @@
 
 public interface IAppData
 {
-    string Name { get; }
+    string ExecutableName { get; }
+    string PackageName { get; }
     Dictionary<string, string> PackageFiles { get; }
 }
\ No newline at end of file
diff --git a/RobloxLegacy/AppData/StudioData.cs b/RobloxLegacy/AppData/StudioData.cs
index d41668c..aab88b6 100644
--- a/RobloxLegacy/AppData/StudioData.cs
+++ b/RobloxLegacy/AppData/StudioData.cs
@@ -2,7 +2,8 @@
 
 public class StudioData : IAppData
 {
-    public string Name => "WindowsStudio64";
+    public string ExecutableName => "RobloxStudioBeta.exe";
+    public string PackageName => "WindowsStudio64";
     public Dictionary<string, string> PackageFiles { get; } = new()
     {
         ["RobloxStudio.zip"]                    = "",
diff --git a/RobloxLegacy/Program.cs b/RobloxLegacy/Program.cs
index 31f6682..d4d49a9 100644
--- a/RobloxLegacy/Program.cs
+++ b/RobloxLegacy/Program.cs
@@ -2,4 +2,5 @@
 using RobloxLegacy.AppData;
 
 using var manager = new VersionManager(new StudioData());
-await manager.InstallPackage();
\ No newline at end of file
+await manager.InstallPackage(); // update studio if needed
+manager.LaunchApp();
\ No newline at end of file
diff --git a/RobloxLegacy/RobloxLegacy.csproj b/RobloxLegacy/RobloxLegacy.csproj
index 7fad543..043cdde 100644
--- a/RobloxLegacy/RobloxLegacy.csproj
+++ b/RobloxLegacy/RobloxLegacy.csproj
@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net8.0</TargetFramework>
+        <TargetFramework>net8.0-windows</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
     </PropertyGroup>
diff --git a/RobloxLegacy/VersionManager.cs b/RobloxLegacy/VersionManager.cs
index 286e32a..f11b32a 100644
--- a/RobloxLegacy/VersionManager.cs
+++ b/RobloxLegacy/VersionManager.cs
@@ -1,4 +1,5 @@
-using Newtonsoft.Json;
+using System.Diagnostics;
+using Newtonsoft.Json;
 using RobloxLegacy.AppData;
 using RobloxLegacy.Utilities;
 using ICSharpCode.SharpZipLib.Zip;
@@ -18,12 +19,15 @@ public class VersionManager : IDisposable
 {
     private static readonly HttpClient Client = new();
     private const string CdnUrl = "https://setup.rbxcdn.com";
+    private string? _currentVersion;
+    
     private readonly string _tempPath = Path.Combine(Path.GetTempPath(), $"RobloxLegacy.{Guid.NewGuid().ToString()}");
     private readonly IAppData _appData;
 
     public VersionManager(IAppData appData)
     {
         Directory.CreateDirectory(_tempPath);
+        _currentVersion = Registry.GetVersion(appData.PackageName);
         _appData = appData;
     }
 
@@ -32,12 +36,12 @@ public class VersionManager : IDisposable
         var localAppDataPath = Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData);
         return Path.Combine(localAppDataPath, "Roblox", "Versions", version);
     }
-    
+
     private async Task<VersionData?> GetLatestVersion()
     {
-        var url = $"https://clientsettings.roblox.com/v2/client-version/{_appData.Name}/channel/LIVE";
+        var url = $"https://clientsettings.roblox.com/v2/client-version/{_appData.PackageName}/channel/LIVE";
         var response = await Client.GetAsync(url);
-        if(!response.IsSuccessStatusCode) // just to be safe
+        if (!response.IsSuccessStatusCode) // just to be safe
             return null;
         var version = await response.Content.ReadAsAsync<VersionData>();
         return version;
@@ -53,10 +57,13 @@ public class VersionManager : IDisposable
     public async Task InstallPackage()
     {
         var version = await GetLatestVersion();
-        if(version == null)
+
+        if (version == null)
             throw new Exception("No version data found");
-        
-        Logger.Info($"Installing {_appData.Name} version {version.Version}");
+        if (version.UploadHash == _currentVersion)
+            return;
+
+        Logger.Info($"Installing {_appData.PackageName} version {version.Version}");
         foreach (var file in _appData.PackageFiles)
         {
             try
@@ -74,8 +81,27 @@ public class VersionManager : IDisposable
                 Logger.Error($"Failed to download {file.Key}");
             }
         }
+
+        _currentVersion = version.UploadHash;
+        Registry.SaveVersion(_appData.PackageName, version.UploadHash);
     }
-    
+
+    public void LaunchApp()
+    {
+        Logger.Info($"Launching {_appData.PackageName}...");
+        if(string.IsNullOrEmpty(_currentVersion))
+            throw new Exception("No version data found");
+        
+        var startInfo = new ProcessStartInfo()
+        {
+            FileName = _appData.ExecutableName,
+            WorkingDirectory = GetVersionPath(_currentVersion),
+            UseShellExecute = true
+        };
+        
+        Process.Start(startInfo);
+    }
+
     public void Dispose()
     {
         Directory.Delete(_tempPath, true);