#include "measurement.hh"



/*** Constructeurs ***/


Measurement::Measurement(const Mobile *_mobile, const AccessPoint *_ap,
                         const vector<int> &_ss_list)
{
  mobile = (Mobile *) _mobile ;
  ap = (AccessPoint *) _ap ;
  ss_list = _ss_list ;
  update_average_ss() ;
}


Measurement::Measurement(const Measurement &m)
{
  mobile = m.mobile ;
  ap = m.ap ;
  ss_list = m.ss_list ;
  average_ss = m.average_ss ;
}


Measurement::~Measurement()
{
  ss_list.clear() ;
}



/*** Accesseurs lecture ***/


Mobile* Measurement::get_mobile() const
{
  return mobile ;
}


AccessPoint* Measurement::get_ap() const
{
  return ap ;
}


vector<int> Measurement::get_ss_list() const
{
  return ss_list ;
}


float Measurement::get_average_ss() const
{
  return average_ss ;
}


/*
  float Measurement::get_ss_square_distance(const float &ss) const
  {
  return ((ss - average_ss) * (ss - average_ss)) ;
  }
*/



/*** Accesseurs écriture ***/


void Measurement::update_average_ss()
{
  average_ss = 0 ;

  for (int i=0 ; i < ss_list.size() ; i++)
    {
      float ss_mwatts =
        pow(10, (float) ss_list[i] / 10.0) +
        (ss_list.size() * pow(10, average_ss / 10.0)) ;
      average_ss = 10 * log10(ss_mwatts / ss_list.size()) ;
    }
}


void Measurement::set_mobile(const Mobile *_mobile)
{
  mobile = (Mobile *) _mobile ;
}


void Measurement::set_ap(const AccessPoint *_ap)
{
  ap = (AccessPoint *) _ap ;
}


void Measurement::add_ss(const int &ss)
{
  float ss_mwatts =
    pow(10, (float) ss / 10.0) +
    (ss_list.size() * pow(10, average_ss / 10.0)) ;
  ss_list.push_back(ss) ;
  average_ss = 10 * log10(ss_mwatts / ss_list.size()) ;
}



/*** Opérateurs ***/


Measurement Measurement::operator=(const Measurement &m)
{
  if (this == &m)
    return *this ;

  mobile = m.mobile ;
  ap = m.ap ;
  ss_list = m.ss_list ;
  average_ss = m.average_ss ;

  return *this ;
}


bool Measurement::operator==(const Measurement &m)
{
  if (this == &m)
    return true ;

  return
    mobile == m.mobile &&
    ap == m.ap &&
    ss_list == m.ss_list &&
    average_ss == m.average_ss ;
}


bool Measurement::operator!=(const Measurement &m)
{
  return !(*this == m) ;
}



ostream &operator<<(ostream &os, const Measurement &m)
{
  unsigned int i;

  os << m.mobile->get_mac_addr() << "->" << m.ap->get_mac_addr() << ": " ;
  if (m.ss_list.size() == 0)
    os << "No values";
  else
    for (i = 0 ; i < m.ss_list.size() ; i++)
      {
        os << m.ss_list[i];
        if (i < m.ss_list.size() - 1)
          os << ";";
      }
  os << " [AVG=" << m.average_ss << "]";

  return os;
}