// Copyright 2023 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef ASH_SYSTEM_INPUT_DEVICE_SETTINGS_INPUT_DEVICE_SETTINGS_DISPATCHER_H_
#define ASH_SYSTEM_INPUT_DEVICE_SETTINGS_INPUT_DEVICE_SETTINGS_DISPATCHER_H_

#include "ash/ash_export.h"
#include "ash/public/cpp/input_device_settings_controller.h"
#include "ash/public/mojom/input_device_settings.mojom.h"
#include "ash/system/input_device_settings/input_device_duplicate_id_finder.h"
#include "ash/system/input_device_settings/input_device_settings_controller_impl.h"
#include "ash/system/input_device_settings/input_device_settings_utils.h"
#include "ui/ozone/public/input_controller.h"

namespace ash {

class ASH_EXPORT InputDeviceSettingsDispatcher
    : public InputDeviceSettingsController::Observer,
      public InputDeviceDuplicateIdFinder::Observer {
 public:
  explicit InputDeviceSettingsDispatcher(ui::InputController* input_controller);
  InputDeviceSettingsDispatcher(
      ui::InputController* input_controller,
      InputDeviceSettingsController* input_device_settings_controller);

  InputDeviceSettingsDispatcher(const InputDeviceSettingsDispatcher&) = delete;
  InputDeviceSettingsDispatcher& operator=(
      const InputDeviceSettingsDispatcher&) = delete;
  ~InputDeviceSettingsDispatcher() override;

  // InputDeviceSettingsController::Observer:
  void OnMouseConnected(const mojom::Mouse& mouse) override;
  void OnMouseSettingsUpdated(const mojom::Mouse& mouse) override;
  void OnTouchpadConnected(const mojom::Touchpad& touchpad) override;
  void OnTouchpadSettingsUpdated(const mojom::Touchpad& touchpad) override;
  void OnPointingStickConnected(
      const mojom::PointingStick& pointing_stick) override;
  void OnPointingStickSettingsUpdated(
      const mojom::PointingStick& pointing_stick) override;
  void OnCustomizableMouseObservingStarted(const mojom::Mouse& mouse) override;
  void OnCustomizableMouseObservingStopped() override;

  // InputDeviceDuplicateIdFinder::Observer:
  void OnDuplicateDevicesUpdated() override;

 private:
  void Initialize();

  void DispatchMouseSettings(const mojom::Mouse& mouse);
  void DispatchPointingStickSettings(
      const mojom::PointingStick& pointing_stick);
  void DispatchTouchpadSettings(const mojom::Touchpad& touchpad);

  void UpdateDevicesToBlockModifiers();
  void DispatchDevicesToBlockModifiers();

  base::flat_set<VendorProductId> devices_with_blocked_modifiers_;
  base::flat_set<VendorProductId>
      devices_with_blocked_modifiers_from_observing_;

  raw_ptr<ui::InputController> input_controller_;  // Not Owned
  raw_ptr<InputDeviceSettingsControllerImpl>
      input_device_settings_controller_;                       // Not Owned
  raw_ptr<InputDeviceDuplicateIdFinder> duplicate_id_finder_;  // Not Owned
};

}  // namespace ash

#endif  // ASH_SYSTEM_INPUT_DEVICE_SETTINGS_INPUT_DEVICE_SETTINGS_DISPATCHER_H_