/*
 * Copyright (c) 2016, Ford Motor Company
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following
 * disclaimer in the documentation and/or other materials provided with the
 * distribution.
 *
 * Neither the name of the Ford Motor Company nor the names of its contributors
 * may be used to endorse or promote products derived from this software
 * without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef SRC_COMPONENTS_UTILS_INCLUDE_UTILS_TIMER_TASK_IMPL_H_
#define SRC_COMPONENTS_UTILS_INCLUDE_UTILS_TIMER_TASK_IMPL_H_

#include "utils/timer_task.h"
#include "utils/macro.h"

namespace timer {

/**
 * @brief The TaskImpl is proxy-template class for calling callback from Timer
 */
template <typename Trackable>
class TimerTaskImpl : public TimerTask {
 public:
  typedef void (Trackable::*CallbackFunction)();

  TimerTaskImpl(Trackable* trackable, CallbackFunction callback);
  ~TimerTaskImpl();
  /**
   * @brief run method which call callback function from callee
   */
  void run() const OVERRIDE;

 private:
  Trackable* callee_;
  CallbackFunction callback_;
};

// Implementation
template <typename Trackable>
TimerTaskImpl<Trackable>::TimerTaskImpl(Trackable* trackable,
                                        CallbackFunction callback)
    : callee_(trackable), callback_(callback) {}

template <typename Trackable>
TimerTaskImpl<Trackable>::~TimerTaskImpl() {
  callee_ = NULL;
}

template <typename Trackable>
void TimerTaskImpl<Trackable>::run() const {
  DCHECK_OR_RETURN_VOID(callee_ && callback_)
  (callee_->*callback_)();
}
}  // namespace timer

#endif  // SRC_COMPONENTS_UTILS_INCLUDE_UTILS_TIMER_TASK_IMPL_H_