User Data Migration from Citron, Sudachi, and Yuzu (#91)

Includes citron, sudachi, yuzu

currently broken, because the eden dir is always made early?

Signed-off-by: swurl <swurl@swurl.xyz>

Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/91
Co-authored-by: swurl <swurl@swurl.xyz>
Co-committed-by: swurl <swurl@swurl.xyz>

src/common/fs/path_util.h

@@ -1,6 +1,9 @@
 // SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
 // SPDX-License-Identifier: GPL-2.0-or-later
 
+// SPDX-FileCopyrightText: Copyright 2025 eden Emulator Project
+// SPDX-License-Identifier: GPL-3.0-or-later
+
 #pragma once
 
 #include <filesystem>
@@ -10,8 +13,8 @@
 
 namespace Common::FS {
 
-enum class YuzuPath {
-    YuzuDir,        // Where yuzu stores its data.
+enum class EdenPath {
+    EdenDir,        // Where yuzu stores its data.
     AmiiboDir,      // Where Amiibo backups are stored.
     CacheDir,       // Where cached filesystem data is stored.
     ConfigDir,      // Where config files are stored.
@@ -29,6 +32,24 @@ enum class YuzuPath {
     IconsDir,       // Where Icons for Windows shortcuts are stored.
 };
 
+enum LegacyPath {
+    CitronDir, // Citron Directories for migration
+    CitronConfigDir,
+    CitronCacheDir,
+
+    SudachiDir, // Sudachi Directories for migration
+    SudachiConfigDir,
+    SudachiCacheDir,
+
+    YuzuDir, // Yuzu Directories for migration
+    YuzuConfigDir,
+    YuzuCacheDir,
+
+    SuyuDir, // Suyu Directories for migration
+    SuyuConfigDir,
+    SuyuCacheDir,
+};
+
 /**
  * Validates a given path.
  *
@@ -193,39 +214,62 @@ template <typename Path>
 void SetAppDirectory(const std::string& app_directory);
 
 /**
- * Gets the filesystem path associated with the YuzuPath enum.
+ * Gets the filesystem path associated with the EdenPath enum.
  *
- * @param yuzu_path YuzuPath enum
+ * @param eden_path EdenPath enum
  *
- * @returns The filesystem path associated with the YuzuPath enum.
+ * @returns The filesystem path associated with the EdenPath enum.
  */
-[[nodiscard]] const std::filesystem::path& GetYuzuPath(YuzuPath yuzu_path);
+[[nodiscard]] const std::filesystem::path& GetEdenPath(EdenPath eden_path);
 
 /**
- * Gets the filesystem path associated with the YuzuPath enum as a UTF-8 encoded std::string.
+ * Gets the filesystem path associated with the LegacyPath enum.
  *
- * @param yuzu_path YuzuPath enum
+ * @param legacy_path LegacyPath enum
  *
- * @returns The filesystem path associated with the YuzuPath enum as a UTF-8 encoded std::string.
+ * @returns The filesystem path associated with the LegacyPath enum.
  */
-[[nodiscard]] std::string GetYuzuPathString(YuzuPath yuzu_path);
+[[nodiscard]] const std::filesystem::path& GetLegacyPath(LegacyPath legacy_path);
 
 /**
- * Sets a new filesystem path associated with the YuzuPath enum.
+ * Gets the filesystem path associated with the EdenPath enum as a UTF-8 encoded std::string.
+ *
+ * @param eden_path EdenPath enum
+ *
+ * @returns The filesystem path associated with the EdenPath enum as a UTF-8 encoded std::string.
+ */
+[[nodiscard]] std::string GetEdenPathString(EdenPath eden_path);
+
+/**
+ * Gets the filesystem path associated with the LegacyPath enum as a UTF-8 encoded std::string.
+ *
+ * @param legacy_path LegacyPath enum
+ *
+ * @returns The filesystem path associated with the LegacyPath enum as a UTF-8 encoded std::string.
+ */
+[[nodiscard]] std::string GetLegacyPathString(LegacyPath legacy_path);
+
+/**
+ * Sets a new filesystem path associated with the EdenPath enum.
  * If the filesystem object at new_path is not a directory, this function will not do anything.
  *
- * @param yuzu_path YuzuPath enum
+ * @param eden_path EdenPath enum
  * @param new_path New filesystem path
  */
-void SetYuzuPath(YuzuPath yuzu_path, const std::filesystem::path& new_path);
+void SetEdenPath(EdenPath eden_path, const std::filesystem::path& new_path);
+
+/**
+ * Creates all necessary Eden paths in the filesystem.
+ */
+void CreateEdenPaths();
 
 #ifdef _WIN32
 template <typename Path>
-void SetYuzuPath(YuzuPath yuzu_path, const Path& new_path) {
+void SetEdenPath(EdenPath eden_path, const Path& new_path) {
     if constexpr (IsChar<typename Path::value_type>) {
-        SetYuzuPath(yuzu_path, ToU8String(new_path));
+        SetEdenPath(eden_path, ToU8String(new_path));
     } else {
-        SetYuzuPath(yuzu_path, std::filesystem::path{new_path});
+        SetEdenPath(eden_path, std::filesystem::path{new_path});
     }
 }
 #endif