// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_ASH_LOGIN_SCREENS_GUEST_TOS_SCREEN_H_
#define CHROME_BROWSER_ASH_LOGIN_SCREENS_GUEST_TOS_SCREEN_H_

#include "base/memory/raw_ref.h"
#include "base/memory/weak_ptr.h"
#include "base/observer_list.h"
#include "chrome/browser/ash/login/screens/base_screen.h"
#include "chrome/browser/ui/webui/ash/login/guest_tos_screen_handler.h"

class ApplicationLocaleStorage;
class PrefService;

namespace ash {

// Controller for the Guest ToS screen.
class GuestTosScreen : public BaseScreen {
 public:
  enum class Result {
    ACCEPT,
    BACK,
    CANCEL,
  };

  static std::string GetResultString(Result result);

  using ScreenExitCallback = base::RepeatingCallback<void(Result result)>;
  // `local_state` and `application_locale_storage` must be non-null and must
  // outlive `this`.
  GuestTosScreen(PrefService* local_state,
                 const ApplicationLocaleStorage* application_locale_storage,
                 base::WeakPtr<GuestTosScreenView> view,
                 const ScreenExitCallback& exit_callback);
  GuestTosScreen(const GuestTosScreen&) = delete;
  GuestTosScreen& operator=(const GuestTosScreen&) = delete;
  ~GuestTosScreen() override;

  void OnAccept(bool enable_usage_stats);

 private:
  // BaseScreen:
  void ShowImpl() override;
  void HideImpl() override;
  void OnUserAction(const base::ListValue& args) override;

  // Callback to make when the guest OOBE prefs are done writing.
  void OnOobeGuestPrefWriteDone();

  const raw_ref<PrefService> local_state_;
  const raw_ref<const ApplicationLocaleStorage> application_locale_storage_;

  base::WeakPtr<GuestTosScreenView> view_;
  ScreenExitCallback exit_callback_;

  base::WeakPtrFactory<GuestTosScreen> weak_ptr_factory_{this};
};

}  // namespace ash

#endif  // CHROME_BROWSER_ASH_LOGIN_SCREENS_GUEST_TOS_SCREEN_H_