// Copyright 2020 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_UI_WEBUI_ASH_SETTINGS_PAGES_DEVICE_DEVICE_SECTION_H_
#define CHROME_BROWSER_UI_WEBUI_ASH_SETTINGS_PAGES_DEVICE_DEVICE_SECTION_H_

#include "ash/display/cros_display_config.h"
#include "ash/public/cpp/night_light_controller.h"
#include "ash/shell_observer.h"
#include "ash/webui/settings/public/constants/setting.mojom-forward.h"
#include "base/scoped_observation.h"
#include "base/values.h"
#include "chrome/browser/ash/system/pointer_device_observer.h"
#include "chrome/browser/ui/webui/ash/settings/pages/device/inputs_section.h"
#include "chrome/browser/ui/webui/ash/settings/pages/os_settings_section.h"
#include "chrome/browser/ui/webui/ash/settings/pages/printing/printing_section.h"
#include "ui/events/devices/input_device_event_observer.h"

class PrefService;

namespace ash {
class Shell;
}  // namespace ash

namespace content {
class WebUIDataSource;
}  // namespace content

namespace ash::settings {

class SearchTagRegistry;

// Provides UI strings and search tags for Device settings.
class DeviceSection : public OsSettingsSection,
                      public system::PointerDeviceObserver::Observer,
                      public ui::InputDeviceEventObserver,
                      public NightLightController::Observer,
                      public ash::CrosDisplayConfig::Observer,
                      public ash::ShellObserver {
 public:
  DeviceSection(Profile* profile,
                SearchTagRegistry* search_tag_registry,
                CupsPrintersManager* printers_manager,
                PrefService* pref_service);
  ~DeviceSection() override;

  // ash::ShellObserver:
  void OnShellDestroying() override;

  // OsSettingsSection:
  void AddLoadTimeData(content::WebUIDataSource* html_source) override;
  void AddHandlers(content::WebUI* web_ui) override;
  int GetSectionNameMessageId() const override;
  chromeos::settings::mojom::Section GetSection() const override;
  mojom::SearchResultIcon GetSectionIcon() const override;
  const char* GetSectionPath() const override;
  bool LogMetric(chromeos::settings::mojom::Setting setting,
                 base::Value& value) const override;
  void RegisterHierarchy(HierarchyGenerator* generator) const override;

 private:
  // system::PointerDeviceObserver::Observer:
  void TouchpadExists(bool exists) override;
  void HapticTouchpadExists(bool exists) override;
  void MouseExists(bool exists) override;
  void PointingStickExists(bool exists) override;

  // ui::InputDeviceObserver:
  void OnDeviceListsComplete() override;

  // NightLightController::Observer:
  void OnNightLightEnabledChanged(bool enabled) override;

  // ash::CrosDisplayConfig::Observer:
  void OnDisplayConfigChanged() override;

  void UpdateStylusSearchTags();

  void AddDevicePointersStrings(content::WebUIDataSource* html_source);
  void AddDeviceGraphicsTabletStrings(
      content::WebUIDataSource* html_source) const;
  void AddCustomizeButtonsPageStrings(
      content::WebUIDataSource* html_source) const;
  void AddDeviceDisplayStrings(content::WebUIDataSource* html_source) const;

  system::PointerDeviceObserver pointer_device_observer_;
  InputsSection inputs_subsection_;
  PrintingSection printing_subsection_;
  raw_ptr<ash::CrosDisplayConfig> cros_display_config_ = nullptr;
  base::ScopedObservation<ash::CrosDisplayConfig,
                          ash::CrosDisplayConfig::Observer>
      cros_display_config_observation_{this};
  // TODO(crbug.com/485123493): Remove the observation and OnShellDestroying
  // override once profiles (and thus DeviceSection) get destroyed
  // before ash::Shell.
  base::ScopedObservation<ash::Shell, ash::ShellObserver> shell_observation_{
      this};
};

}  // namespace ash::settings

#endif  // CHROME_BROWSER_UI_WEBUI_ASH_SETTINGS_PAGES_DEVICE_DEVICE_SECTION_H_