/**
 ******************************************************************************
 * Xenia : Xbox 360 Emulator Research Project                                 *
 ******************************************************************************
 * Copyright 2022 Ben Vanik. All rights reserved.                             *
 * Released under the BSD license - see LICENSE in the root for more details. *
 ******************************************************************************
 */

#include "xenia/base/logging.h"
#include "xenia/emulator.h"
#include "xenia/kernel/kernel_flags.h"
#include "xenia/kernel/kernel_state.h"
#include "xenia/kernel/util/shim_utils.h"
#include "xenia/kernel/xam/xam_private.h"
#include "xenia/ui/imgui_dialog.h"
#include "xenia/ui/imgui_drawer.h"
#include "xenia/ui/window.h"
#include "xenia/ui/windowed_app_context.h"
#include "xenia/xbox.h"

namespace xe {
namespace kernel {
namespace xam {

extern std::atomic<int> xam_dialogs_shown_;

struct X_NUI_DEVICE_STATUS {
  xe::be<uint32_t> unk0;
  xe::be<uint32_t> unk1;
  xe::be<uint32_t> unk2;
  xe::be<uint32_t> status;
  xe::be<uint32_t> unk4;
  xe::be<uint32_t> unk5;
};
static_assert(sizeof(X_NUI_DEVICE_STATUS) == 24, "Size matters");

void XamNuiGetDeviceStatus_entry(pointer_t<X_NUI_DEVICE_STATUS> status_ptr) {
  status_ptr.Zero();
  status_ptr->status = 0;  // Not connected.
}
DECLARE_XAM_EXPORT1(XamNuiGetDeviceStatus, kNone, kStub);

// UI
dword_result_t XamShowNuiTroubleshooterUI_entry(unknown_t unk1, unknown_t unk2,
                                                dword_t flag) {
  /* Notes:
     - unk1 is 0xFF - possibly user index?
     - unk2 appear to always be zero.
     - First calls XamPackageManagerGetExperienceMode and checks if the return
     is less than zero
     - If less than zero then returns error message below
     - else it checks if flag = 0x800000 if it does then call
     XamNuiGetDeviceStatus. if not return error
  */

  if (cvars::headless) {
    return 0;
  }

  const Emulator* emulator = kernel_state()->emulator();
  ui::Window* display_window = emulator->display_window();
  ui::ImGuiDrawer* imgui_drawer = emulator->imgui_drawer();
  if (display_window && imgui_drawer) {
    xe::threading::Fence fence;
    if (display_window->app_context().CallInUIThreadSynchronous([&]() {
          xe::ui::ImGuiDialog::ShowMessageBox(
              imgui_drawer, "NUI Troubleshooter",
              "The game has indicated there is a problem with NUI (Kinect).")
              ->Then(&fence);
        })) {
      ++xam_dialogs_shown_;
      fence.Wait();
      --xam_dialogs_shown_;
    }
  }

  return 0;
}
DECLARE_XAM_EXPORT1(XamShowNuiTroubleshooterUI, kNone, kStub);

dword_result_t XamShowNuiHardwareRequiredUI_entry(unknown_t unk1) {
  if (unk1 != 0) {
    return X_ERROR_INVALID_PARAMETER;
  }

  return XamShowNuiTroubleshooterUI_entry(0xff, 0, 0x400000);
}
DECLARE_XAM_EXPORT1(XamShowNuiHardwareRequiredUI, kNone, kImplemented);

}  // namespace xam
}  // namespace kernel
}  // namespace xe

DECLARE_XAM_EMPTY_REGISTER_EXPORTS(NUI);