// Copyright (c) 2013 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROMEOS_DBUS_FAKE_POWER_MANAGER_CLIENT_H_
#define CHROMEOS_DBUS_FAKE_POWER_MANAGER_CLIENT_H_

#include <string>

#include "base/basictypes.h"
#include "base/macros.h"
#include "base/observer_list.h"
#include "chromeos/dbus/power_manager/policy.pb.h"
#include "chromeos/dbus/power_manager/suspend.pb.h"
#include "chromeos/dbus/power_manager_client.h"

namespace chromeos {

// A fake implementation of PowerManagerClient. This remembers the policy passed
// to SetPolicy() and the user of this class can inspect the last set policy by
// get_policy().
class FakePowerManagerClient : public PowerManagerClient {
 public:
  FakePowerManagerClient();
  virtual ~FakePowerManagerClient();

  power_manager::PowerManagementPolicy& policy() { return policy_; }
  int num_request_restart_calls() const { return num_request_restart_calls_; }
  int num_request_shutdown_calls() const { return num_request_shutdown_calls_; }
  int num_set_policy_calls() const { return num_set_policy_calls_; }
  int num_set_is_projecting_calls() const {
    return num_set_is_projecting_calls_;
  }
  bool is_projecting() const { return is_projecting_; }

  // PowerManagerClient overrides
  virtual void Init(dbus::Bus* bus) override;
  virtual void AddObserver(Observer* observer) override;
  virtual void RemoveObserver(Observer* observer) override;
  virtual bool HasObserver(Observer* observer) override;
  virtual void DecreaseScreenBrightness(bool allow_off) override;
  virtual void IncreaseScreenBrightness() override;
  virtual void SetScreenBrightnessPercent(
      double percent, bool gradual) override;
  virtual void GetScreenBrightnessPercent(
      const GetScreenBrightnessPercentCallback& callback) override;
  virtual void DecreaseKeyboardBrightness() override;
  virtual void IncreaseKeyboardBrightness() override;
  virtual void RequestStatusUpdate() override;
  virtual void RequestSuspend() override;
  virtual void RequestRestart() override;
  virtual void RequestShutdown() override;
  virtual void NotifyUserActivity(
      power_manager::UserActivityType type) override;
  virtual void NotifyVideoActivity(bool is_fullscreen) override;
  virtual void SetPolicy(
      const power_manager::PowerManagementPolicy& policy) override;
  virtual void SetIsProjecting(bool is_projecting) override;
  virtual base::Closure GetSuspendReadinessCallback() override;
  virtual int GetNumPendingSuspendReadinessCallbacks() override;

  // Emulates the power manager announcing that the system is starting or
  // completing a suspend attempt.
  void SendSuspendImminent();
  void SendSuspendDone();
  void SendDarkSuspendImminent();

  // Notifies observers that the power button has been pressed or released.
  void SendPowerButtonEvent(bool down, const base::TimeTicks& timestamp);

 private:
  // Callback that will be run by asynchronous suspend delays to report
  // readiness.
  void HandleSuspendReadiness();

  ObserverList<Observer> observers_;

  // Last policy passed to SetPolicy().
  power_manager::PowerManagementPolicy policy_;

  // Number of times that various methods have been called.
  int num_request_restart_calls_;
  int num_request_shutdown_calls_;
  int num_set_policy_calls_;
  int num_set_is_projecting_calls_;

  // Number of pending suspend readiness callbacks.
  int num_pending_suspend_readiness_callbacks_;

  // Last projecting state set in SetIsProjecting().
  bool is_projecting_;

  DISALLOW_COPY_AND_ASSIGN(FakePowerManagerClient);
};

}  // namespace chromeos

#endif  // CHROMEOS_DBUS_FAKE_POWER_MANAGER_CLIENT_H_