#include "request.hh"
#include "mobile.hh"

using namespace std ;
using std::tr1::unordered_map ;



/* *** Constructors *** */


/**
 * Note that the value pointed by #mobile is not deleted.
 */
Request::~Request()
{
  measurements.clear() ;
}



/* *** Write accessors *** */


/// Reinitialises all attributes
/**
 * - #mobile is NULLified, but the value it pointed to is not deleted.
 * - The fields of #time_sent are initialised to 0.
 * - #measurements is cleared.
 */
void Request::clear()
{
  type = OWL_REQUEST_UNDEFINED ;
  mobile = NULL ;
  time_sent.clear() ;
  measurements.clear() ;
}



/* *** Operators *** */


const Request& Request::operator=(const Request &source)
{
  if (this == &source)
    return *this ;

  type = source.type ;
  mobile = source.mobile ;
  time_sent = source.time_sent ;
  measurements = source.measurements ;

  return *this ;
}


bool Request::operator==(const Request &source) const
{
  if (this == &source)
    return true ;

  return
    type == source.type &&
    mobile == source.mobile &&
    time_sent == source.time_sent &&
    measurements == source.measurements ;
}



ostream& operator<<(ostream &os, const Request &r)
{
  // Timestamp
  os
      << "At " << r.time_sent << "; " ;

  // MAC address
  os
      << "Type: " << static_cast<uint_fast16_t>(r.type)
      << ", Mobile: "
      << (r.mobile != NULL ? r.mobile->get_mac_addr() : "Unknown_Mobile")
      << ":" ;

  // List of Measurements
  if (r.measurements.empty())
    os << " No values" ;
  else
    for (unordered_map<string, Measurement>::const_iterator i
         = r.measurements.begin() ; i != r.measurements.end() ; ++i)
      {
        os << '\n' << i->first << ": " << i->second ;
      }

  return os ;
}



/**
 * The Mobile MAC address and the Timestamp are sufficient to identify
 * uniquely a Request.
 */
size_t hash_value(const Request &source)
{
  size_t seed = 0 ;

  boost::hash_combine(seed, source.type) ;
  boost::hash_combine(seed, source.time_sent) ;
  if (source.mobile != NULL)
    boost::hash_combine(seed, source.mobile->get_mac_addr()) ;

  return seed ;
}