// 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 ASH_QUICK_PAIR_KEYED_SERVICE_FAST_PAIR_BLUETOOTH_CONFIG_DELEGATE_H_
#define ASH_QUICK_PAIR_KEYED_SERVICE_FAST_PAIR_BLUETOOTH_CONFIG_DELEGATE_H_

#include <optional>

#include "base/memory/raw_ptr.h"
#include "base/observer_list.h"
#include "base/observer_list_types.h"
#include "chromeos/ash/services/bluetooth_config/fast_pair_delegate.h"

namespace ash::bluetooth_config {
class AdapterStateController;
class DeviceImageInfo;
class DeviceNameManager;
}  // namespace ash::bluetooth_config

namespace ash {
namespace quick_pair {

// Delegate class which provides Fast Pair information to the
// CrosBluetoothConfig system.
class FastPairBluetoothConfigDelegate
    : public bluetooth_config::FastPairDelegate {
 public:
  // The delegate_ is set in the constructor and implements the following
  // virtual methods.
  class Delegate {
   public:
    virtual ~Delegate() = default;

    // Called when the AdapterStateController is changed.
    virtual void OnAdapterStateControllerChanged(
        bluetooth_config::AdapterStateController* adapter_state_controller) = 0;
  };

  explicit FastPairBluetoothConfigDelegate(Delegate* delegate);

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

  // bluetooth_config::FastPairDelegate
  std::optional<bluetooth_config::DeviceImageInfo> GetDeviceImageInfo(
      const std::string& device_id) override;
  void ForgetDevice(const std::string& mac_address) override;
  void UpdateDeviceNickname(const std::string& mac_address,
                            const std::string& nickname) override;
  void SetAdapterStateController(bluetooth_config::AdapterStateController*
                                     adapter_state_controller) override;
  void SetDeviceNameManager(
      bluetooth_config::DeviceNameManager* device_name_manager) override;

  bluetooth_config::AdapterStateController* adapter_state_controller() {
    return adapter_state_controller_;
  }

 private:
  raw_ptr<Delegate> delegate_;
  raw_ptr<bluetooth_config::AdapterStateController> adapter_state_controller_ =
      nullptr;
  raw_ptr<bluetooth_config::DeviceNameManager> device_name_manager_ = nullptr;
};

}  // namespace quick_pair
}  // namespace ash

#endif  // ASH_QUICK_PAIR_KEYED_SERVICE_FAST_PAIR_BLUETOOTH_CONFIG_DELEGATE_H_