new game path loader

(cherry picked from commit dc853f2307)

BetterGenshinImpact/Genshin/Paths/GameExePath.cs

@@ -9,6 +9,10 @@ using System.Text.RegularExpressions;
 
 namespace BetterGenshinImpact.Genshin.Paths;
 
+/// <summary>
+/// 已经弃用
+/// </summary>
+[Obsolete]
 internal partial class GameExePath
 {
     public static readonly FrozenSet<string> GameRegistryPaths = FrozenSet.ToFrozenSet(

BetterGenshinImpact/Genshin/Paths/RegistryGameLocator.cs

@@ -0,0 +1,41 @@
+using System;
+using BetterGenshinImpact.GameTask.Common;
+using Microsoft.Extensions.Logging;
+using Microsoft.Win32;
+
+namespace BetterGenshinImpact.Genshin.Paths;
+
+/// <summary>
+/// https://github.com/Scighost/Starward/blob/main/src%2FStarward%2FServices%2FLauncher%2FGameLauncherService.cs#L112-L112
+/// </summary>
+public class RegistryGameLocator
+{
+    public static string? GetDefaultGameInstallPath()
+    {
+        try
+        {
+            var cn = Registry.GetValue($@"HKEY_CURRENT_USER\Software\miHoYo\HYP\1_1\hk4e_cn", "GameInstallPath", null) as string;
+            if (!string.IsNullOrEmpty(cn))
+            {
+                return cn;
+            }
+
+            var global = Registry.GetValue($@"HKEY_CURRENT_USER\Software\Cognosphere\HYP\1_0\hk4e_global", "GameInstallPath", null) as string;
+            if (!string.IsNullOrEmpty(global))
+            {
+                return global;
+            }
+
+            var bilibili = Registry.GetValue($@"HKEY_CURRENT_USER\Software\miHoYo\HYP\standalone\14_0\hk4e_bilibili\BilibiliGenshin\hk4e_bilibili", "GameInstallPath", null) as string;
+            if (!string.IsNullOrEmpty(bilibili))
+            {
+                return bilibili;
+            }
+        }
+        catch (Exception e)
+        {
+            TaskControl.Logger.LogDebug(e, "Failed to locate game path.");
+        }
+        return null;
+    }
+}

BetterGenshinImpact/Genshin/Paths/UnityLogGameLocator.cs

@@ -0,0 +1,66 @@
+using System;
+using System.IO;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+using BetterGenshinImpact.GameTask.Common;
+using Microsoft.Extensions.Logging;
+
+namespace BetterGenshinImpact.Genshin.Paths;
+
+/// <summary>
+/// https://github.com/DGP-Studio/Snap.Hutao/blob/main/src/Snap.Hutao/Snap.Hutao/Service/Game/Locator/UnityLogGameLocator.cs
+/// </summary>
+public partial class UnityLogGameLocator
+{
+    [GeneratedRegex(@".:/.+(?:GenshinImpact|YuanShen)(?=_Data)", RegexOptions.IgnoreCase)]
+    private static partial Regex WarmupFileLine();
+
+    public static async ValueTask<string?> LocateSingleGamePathAsync()
+    {
+        try
+        {
+            string appDataPath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
+            string logFilePathOversea = Path.Combine(appDataPath, @"..\LocalLow\miHoYo\Genshin Impact\output_log.txt");
+            string logFilePathChinese = Path.Combine(appDataPath, @"..\LocalLow\miHoYo\原神\output_log.txt");
+
+            // Fallback to the CN server.
+            string logFilePath = File.Exists(logFilePathChinese) ? logFilePathChinese : logFilePathOversea;
+            return await LocateGamePathAsync(logFilePath).ConfigureAwait(false);
+        }
+        catch (Exception e)
+        {
+            TaskControl.Logger.LogDebug(e, "Failed to locate game path.");
+            return null;
+        }
+    }
+
+    private static async ValueTask<string?> LocateGamePathAsync(string logFilePath)
+    {
+        if (!File.Exists(logFilePath))
+        {
+            return null;
+        }
+
+        string content;
+        try
+        {
+            await using var fileStream = new FileStream(logFilePath, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
+            using var reader = new StreamReader(fileStream);
+            content = await reader.ReadToEndAsync();
+        }
+        catch (IOException)
+        {
+            return null;
+        }
+
+        Match matchResult = WarmupFileLine().Match(content);
+        if (!matchResult.Success)
+        {
+            return null;
+        }
+
+        string entryName = $"{matchResult.Value}.exe";
+        string fullPath = Path.GetFullPath(Path.Combine(matchResult.Value, "..", entryName));
+        return fullPath;
+    }
+}

BetterGenshinImpact/ViewModel/Pages/HomePageViewModel.cs

@@ -340,11 +340,22 @@ public partial class HomePageViewModel : ObservableObject, INavigationAware, IVi
         // 检查用户是否配置了原神安装目录，如果没有，尝试从注册表中读取
         if (string.IsNullOrEmpty(Config.GenshinStartConfig.InstallPath))
         {
-            var path = GameExePath.GetWithoutCloud();
-            if (!string.IsNullOrEmpty(path))
+            Task.Run(async () =>
             {
-                Config.GenshinStartConfig.InstallPath = path;
-            }
+                var p1 = RegistryGameLocator.GetDefaultGameInstallPath();
+                if (!string.IsNullOrEmpty(p1))
+                {
+                    Config.GenshinStartConfig.InstallPath = p1;
+                }
+                else
+                {
+                    var path = await UnityLogGameLocator.LocateSingleGamePathAsync();
+                    if (!string.IsNullOrEmpty(path))
+                    {
+                        Config.GenshinStartConfig.InstallPath = path;
+                    }
+                }
+            });
         }
     }