[Kernel] Split achievements backends from manager and interface

src/xenia/kernel/xam/achievement_backends/gpd_achievement_backend.h

@@ -0,0 +1,60 @@
+/**
+ ******************************************************************************
+ * Xenia : Xbox 360 Emulator Research Project                                 *
+ ******************************************************************************
+ * Copyright 2024 Xenia Canary. All rights reserved.                          *
+ * Released under the BSD license - see LICENSE in the root for more details. *
+ ******************************************************************************
+ */
+
+#ifndef XENIA_KERNEL_XAM_ACHIEVEMENT_BACKENDS_GPD_ACHIEVEMENT_BACKEND_H_
+#define XENIA_KERNEL_XAM_ACHIEVEMENT_BACKENDS_GPD_ACHIEVEMENT_BACKEND_H_
+
+#include <map>
+#include <optional>
+#include <string>
+#include <vector>
+
+#include "xenia/kernel/util/xdbf_utils.h"
+#include "xenia/kernel/xam/achievement_manager.h"
+#include "xenia/xbox.h"
+
+namespace xe {
+namespace kernel {
+namespace xam {
+
+class GpdAchievementBackend : public AchievementBackendInterface {
+ public:
+  GpdAchievementBackend();
+  ~GpdAchievementBackend();
+
+  void EarnAchievement(const uint64_t xuid, const uint32_t title_id,
+                       const uint32_t achievement_id) override;
+  bool IsAchievementUnlocked(const uint64_t xuid, const uint32_t title_id,
+                             const uint32_t achievement_id) const override;
+  const AchievementGpdStructure* GetAchievementInfo(
+      const uint64_t xuid, const uint32_t title_id,
+      const uint32_t achievement_id) const override;
+  const std::vector<AchievementGpdStructure>* GetTitleAchievements(
+      const uint64_t xuid, const uint32_t title_id) const override;
+  bool LoadAchievementsData(const uint64_t xuid,
+                            const util::XdbfGameData title_data) override;
+
+ private:
+  AchievementGpdStructure* GetAchievementInfoInternal(
+      const uint64_t xuid, const uint32_t title_id,
+      const uint32_t achievement_id) const;
+
+  bool SaveAchievementsData(const uint64_t xuid,
+                            const uint32_t title_id) override {
+    return 0;
+  };
+  bool SaveAchievementData(const uint64_t xuid, const uint32_t title_id,
+                           const uint32_t achievement_id) override;
+};
+
+}  // namespace xam
+}  // namespace kernel
+}  // namespace xe
+
+#endif  // XENIA_KERNEL_XAM_ACHIEVEMENT_BACKENDS_GPD_ACHIEVEMENT_BACKEND_H_