/**
 *
 * \section COPYRIGHT
 *
 * Copyright 2013-2017 Software Radio Systems Limited
 *
 * \section LICENSE
 *
 * This file is part of srsLTE.
 *
 * 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 SRSENB_SCHEDULER_METRIC_H
#define SRSENB_SCHEDULER_METRIC_H

#include "scheduler.h"

namespace srsenb {
  
class dl_metric_rr : public sched::metric_dl
{
public:
  //interface
  void            new_tti(std::map<uint16_t,sched_ue> &ue_db, uint32_t start_rbg, uint32_t nof_rbg, uint32_t nof_ctrl_symbols, uint32_t tti);
  dl_harq_proc*   get_user_allocation(sched_ue *user); 
private:
  
  const static int MAX_RBG = 25; 
  
  bool new_allocation(uint32_t nof_rbg, uint32_t* rbgmask); 
  void update_allocation(uint32_t new_mask); 
  bool allocation_is_valid(uint32_t mask);
  dl_harq_proc* apply_user_allocation(sched_ue *user);

  uint32_t get_required_rbg(sched_ue *user, uint32_t tti); 
  uint32_t count_rbg(uint32_t mask); 
  uint32_t calc_rbg_mask(bool mask[25]); 
  
  bool used_rbg[MAX_RBG];


  uint32_t current_tti;
  uint32_t total_rbg;
  uint32_t used_rbg_mask;
  uint32_t nof_ctrl_symbols;
  uint32_t available_rbg;
};

class ul_metric_rr : public sched::metric_ul
{
public:
  // interface
  void           new_tti(std::map<uint16_t,sched_ue> &ue_db, uint32_t nof_rb, uint32_t tti);
  ul_harq_proc*  get_user_allocation(sched_ue *user); 
  bool           update_allocation(ul_harq_proc::ul_alloc_t alloc);
  void           reset_allocation(uint32_t nof_rb_);
private:
  
  const static int MAX_PRB = 100; 
  
  bool new_allocation(uint32_t L, ul_harq_proc::ul_alloc_t *alloc);
  bool allocation_is_valid(ul_harq_proc::ul_alloc_t alloc); 
  ul_harq_proc* apply_user_allocation(sched_ue *user, bool retx_only);
  ul_harq_proc* allocate_user_newtx_prbs(sched_ue* user);
  ul_harq_proc* allocate_user_retx_prbs(sched_ue *user);


  bool used_rb[MAX_PRB]; 
  uint32_t current_tti; 
  uint32_t nof_rb;
};

  
}

#endif // SRSENB_SCHEDULER_METRIC_H

