Properly migrate internal NAND, Load, etc. directories (#167)

Signed-off-by: crueter <swurl@swurl.xyz>
Reviewed-on: https://git.eden-emu.dev/eden-emu/eden/pulls/167
Co-authored-by: crueter <swurl@swurl.xyz>
Co-committed-by: crueter <swurl@swurl.xyz>

src/yuzu/migration_worker.h

@@ -2,25 +2,58 @@
 #define MIGRATION_WORKER_H
 
 #include <QObject>
+#include "common/fs/path_util.h"
+
+using namespace Common::FS;
+
+typedef struct Emulator {
+    const char *name;
+
+    LegacyPath e_user_dir;
+    LegacyPath e_config_dir;
+    LegacyPath e_cache_dir;
+
+    const std::string get_user_dir() const {
+        return Common::FS::GetLegacyPath(e_user_dir).string();
+    }
+
+    const std::string get_config_dir() const {
+        return Common::FS::GetLegacyPath(e_config_dir).string();
+    }
+
+    const std::string get_cache_dir() const {
+        return Common::FS::GetLegacyPath(e_cache_dir).string();
+    }
+
+    const std::string lower_name() const {
+        std::string lower_name{name};
+        std::transform(lower_name.begin(), lower_name.end(), lower_name.begin(),
+                       [](unsigned char c){ return std::tolower(c); });
+
+        return lower_name;
+    }
+} Emulator;
+
+#define EMU(name) Emulator{#name, name##Dir, name##ConfigDir, name##CacheDir}
+static constexpr std::array<Emulator, 4> legacy_emus = {
+    EMU(Citron),
+    EMU(Sudachi),
+    EMU(Suyu),
+    EMU(Yuzu),
+};
+#undef EMU
 
 class MigrationWorker : public QObject
 {
     Q_OBJECT
 public:
-    enum class LegacyEmu {
-        Citron,
-        Sudachi,
-        Yuzu,
-        Suyu,
-    };
-
     enum class MigrationStrategy {
         Copy,
         Move,
         Link,
     };
 
-    MigrationWorker(const LegacyEmu selected_legacy_emu,
+    MigrationWorker(const Emulator selected_legacy_emu,
                     const bool clear_shader_cache,
                     const MigrationStrategy strategy);
 
@@ -28,11 +61,11 @@ public slots:
     void process();
 
 signals:
-    void finished(const QString &success_text);
+    void finished(const QString &success_text, const std::string &user_dir);
     void error(const QString &error_message);
 
 private:
-    LegacyEmu selected_legacy_emu;
+    Emulator selected_legacy_emu;
     bool clear_shader_cache;
     MigrationStrategy strategy;
     QString success_text = tr("Data was migrated successfully.");