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Nitrox.Launcher/Models/Utils/GameInspect.cs

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+using System;
+using System.IO;
+using System.Threading.Tasks;
+using HanumanInstitute.MvvmDialogs;
+using Nitrox.Launcher.ViewModels;
+using NitroxModel.Helper;
+using NitroxModel.Logger;
+using NitroxModel.Platforms.OS.Shared;
+
+namespace Nitrox.Launcher.Models.Utils;
+
+internal static class GameInspect
+{
+    /// <summary>
+    ///     Check to ensure the Subnautica is not in legacy.
+    /// </summary>
+    public static async Task<bool> IsOutdatedGameAndNotify(string gameInstallDir, IDialogService dialogService = null)
+    {
+        try
+        {
+            ArgumentException.ThrowIfNullOrWhiteSpace(gameInstallDir);
+            
+            string gameVersionFile = Path.Combine(gameInstallDir, GameInfo.Subnautica.DataFolder, "StreamingAssets", "SNUnmanagedData", "plastic_status.ignore");
+            if (int.TryParse(await File.ReadAllTextAsync(gameVersionFile), out int gameVersion) && gameVersion <= 68598)
+            {
+                if (dialogService != null)
+                {
+                    await dialogService.ShowAsync<DialogBoxViewModel>(model =>
+                    {
+                        model.Title = "Legacy Game Detected";
+                        model.Description = $"Nitrox does not support the legacy version of {GameInfo.Subnautica.FullName}. Please update your game to the latest version to run {GameInfo.Subnautica.FullName} with Nitrox.{Environment.NewLine}{Environment.NewLine}Version file location:{Environment.NewLine}{gameVersionFile}";
+                        model.ButtonOptions = ButtonOptions.Ok;
+                    });
+                }
+                return true;
+            }
+        }
+        catch (Exception ex)
+        {
+            Log.Error(ex, "Error while checking game version:");
+            LauncherNotifier.Debug(ex.Message);
+            // On error: ignore and assume it's not outdated in case of unforeseen changes. We don't want to block users.
+            return false;
+        }
+
+        return false;
+    }
+
+    /// <summary>
+    ///     Checks game is running and if it is, warns. Does nothing in development mode for debugging purposes.
+    /// </summary>
+    public static bool WarnIfGameProcessExists(GameInfo game)
+    {
+        if (!NitroxEnvironment.IsReleaseMode)
+        {
+            return false;
+        }
+
+        if (!ProcessEx.ProcessExists(game.Name))
+        {
+            return false;
+        }
+        
+        LauncherNotifier.Warning($"An instance of {game.FullName} is already running");
+        return true;
+    }
+}