1 files changed, 149 insertions, 0 deletions
diff --git a/src/Ryujinx.Common/Configuration/AppDataManager.cs b/src/Ryujinx.Common/Configuration/AppDataManager.cs
new file mode 100644
index 00000000..d6e77843
--- /dev/null
+++ b/src/Ryujinx.Common/Configuration/AppDataManager.cs
@@ -0,0 +1,149 @@
+using Ryujinx.Common.Logging;
+using System;
+using System.IO;
+
+namespace Ryujinx.Common.Configuration
+{
+    public static class AppDataManager
+    {
+        public const string DefaultBaseDir = "Ryujinx";
+        public const string DefaultPortableDir = "portable";
+
+        // The following 3 are always part of Base Directory
+        private const string GamesDir = "games";
+        private const string ProfilesDir = "profiles";
+        private const string KeysDir = "system";
+
+        public enum LaunchMode
+        {
+            UserProfile,
+            Portable,
+            Custom
+        }
+
+        public static LaunchMode Mode { get; private set; }
+
+        public static string BaseDirPath { get; private set; }
+        public static string GamesDirPath { get; private set; }
+        public static string ProfilesDirPath { get; private set; }
+        public static string KeysDirPath { get; private set; }
+        public static string KeysDirPathUser { get; }
+
+        public const string DefaultNandDir = "bis";
+        public const string DefaultSdcardDir = "sdcard";
+        private const string DefaultModsDir = "mods";
+
+        public static string CustomModsPath { get; set; }
+        public static string CustomSdModsPath {get; set; }
+        public static string CustomNandPath { get; set; } // TODO: Actually implement this into VFS
+        public static string CustomSdCardPath { get; set; } // TODO: Actually implement this into VFS
+
+        static AppDataManager()
+        {
+            KeysDirPathUser = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.UserProfile), ".switch");
+        }
+
+        public static void Initialize(string baseDirPath)
+        {
+            string appDataPath;
+            if (OperatingSystem.IsMacOS())
+            {
+                appDataPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Personal), "Library", "Application Support");
+            }
+            else
+            {
+                appDataPath = Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData);
+            }
+
+            if (appDataPath.Length == 0)
+            {
+                appDataPath = Environment.GetFolderPath(Environment.SpecialFolder.UserProfile);
+            }
+
+            string userProfilePath = Path.Combine(appDataPath, DefaultBaseDir);
+            string portablePath = Path.Combine(AppDomain.CurrentDomain.BaseDirectory, DefaultPortableDir);
+
+            if (Directory.Exists(portablePath))
+            {
+                BaseDirPath = portablePath;
+                Mode = LaunchMode.Portable;
+            }
+            else
+            {
+                BaseDirPath = userProfilePath;
+                Mode = LaunchMode.UserProfile;
+            }
+
+            if (baseDirPath != null && baseDirPath != userProfilePath)
+            {
+                if (!Directory.Exists(baseDirPath))
+                {
+                    Logger.Error?.Print(LogClass.Application, $"Custom Data Directory '{baseDirPath}' does not exist. Falling back to {Mode}...");
+                }
+                else
+                {
+                    BaseDirPath = baseDirPath;
+                    Mode = LaunchMode.Custom;
+                }
+            }
+
+            BaseDirPath = Path.GetFullPath(BaseDirPath); // convert relative paths
+
+            // NOTE: Moves the Ryujinx folder in `~/.config` to `~/Library/Application Support` if one is found
+            // and a Ryujinx folder does not already exist in Application Support.
+            // Also creates a symlink from `~/.config/Ryujinx` to `~/Library/Application Support/Ryujinx` to preserve backwards compatibility.
+            // This should be removed in the future.
+            if (OperatingSystem.IsMacOS() && Mode == LaunchMode.UserProfile)
+            {
+                string oldConfigPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), DefaultBaseDir);
+                if (Path.Exists(oldConfigPath) && !Path.Exists(BaseDirPath))
+                {
+                    CopyDirectory(oldConfigPath, BaseDirPath);
+                    Directory.Delete(oldConfigPath, true);
+                    Directory.CreateSymbolicLink(oldConfigPath, BaseDirPath);
+                }
+            }
+
+            SetupBasePaths();
+        }
+
+        private static void SetupBasePaths()
+        {
+            Directory.CreateDirectory(BaseDirPath);
+            Directory.CreateDirectory(GamesDirPath = Path.Combine(BaseDirPath, GamesDir));
+            Directory.CreateDirectory(ProfilesDirPath = Path.Combine(BaseDirPath, ProfilesDir));
+            Directory.CreateDirectory(KeysDirPath = Path.Combine(BaseDirPath, KeysDir));
+        }
+
+        private static void CopyDirectory(string sourceDir, string destinationDir)
+        {
+            var dir = new DirectoryInfo(sourceDir);
+
+            if (!dir.Exists)
+            {
+                throw new DirectoryNotFoundException($"Source directory not found: {dir.FullName}");
+            }
+
+            DirectoryInfo[] subDirs = dir.GetDirectories();
+            Directory.CreateDirectory(destinationDir);
+
+            foreach (FileInfo file in dir.GetFiles())
+            {
+                if (file.Name == ".DS_Store")
+                {
+                    continue;
+                }
+
+                file.CopyTo(Path.Combine(destinationDir, file.Name));
+            }
+
+            foreach (DirectoryInfo subDir in subDirs)
+            {
+                CopyDirectory(subDir.FullName, Path.Combine(destinationDir, subDir.Name));
+            }
+        }
+
+        public static string GetModsPath()   => CustomModsPath ?? Directory.CreateDirectory(Path.Combine(BaseDirPath, DefaultModsDir)).FullName;
+        public static string GetSdModsPath() => CustomSdModsPath ?? Directory.CreateDirectory(Path.Combine(BaseDirPath, DefaultSdcardDir, "atmosphere")).FullName;
+    }
+}
+\ No newline at end of file