/**
 *
 * \section COPYRIGHT
 *
 * Copyright 2013-2015 Software Radio Systems Limited
 *
 * \section LICENSE
 *
 * This file is part of the srsUE library.
 *
 * srsUE is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * srsUE is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * A copy of the GNU Affero General Public License can be found in
 * the LICENSE file in the top-level directory of this distribution
 * and at http://www.gnu.org/licenses/.
 *
 */

#ifndef SRSUE_PROC_PHR_H
#define SRSUE_PROC_PHR_H

#include <stdint.h>
#include "srslte/common/timers.h"
#include "srslte/interfaces/ue_interfaces.h"
#include "srslte/common/log.h"


/* Power headroom report procedure */


namespace srsue {

class phr_proc : public srslte::timer_callback
{
public:
  phr_proc();  
  void init(phy_interface_mac* phy_h, srslte::log* log_h_, mac_interface_rrc::mac_cfg_t *mac_cfg, srslte::timers *timers_db_);
  
  void step(uint32_t tti);
  void reset();
  
  bool generate_phr_on_ul_grant(float *phr);
  void timer_expired(uint32_t timer_id);

  void start_timer();

private:
  
  bool pathloss_changed(); 
  
  srslte::log* log_h;
  mac_interface_rrc::mac_cfg_t *mac_cfg; 
  phy_interface_mac* phy_h; 
  srslte::timers* timers_db;
  bool initiated;
  int timer_prohibit_value;
  int timer_periodic_value;
  int dl_pathloss_change; 
  int last_pathloss_db;
  bool phr_is_triggered;

  uint32_t timer_periodic_id;
  uint32_t timer_prohibit_id;

};

} // namespace srsue

#endif // SRSUE_PROC_PHR_H