#ifndef _OWLPS_POSITIONING_REQUEST_HH_
#define _OWLPS_POSITIONING_REQUEST_HH_

class Mobile ;

#include "measurement.hh"
#include "timestamp.hh"

#include <owlps.h>

#include <ctime>
#include <boost/tr1/unordered_map.hpp>
#include <ostream>

/// Represents a request sent by a Mobile
class Request
{
protected:
  /// Type of the request
  uint_fast8_t type ;
  /// The mobile that sent the request
  Mobile *mobile ;
  /// Local date of the request on the mobile
  Timestamp time_sent ;
  /// List of Measurement of the request
  /** Note that this is not a pointer list, values are actually stored.
      The \em string parameter is the MAC address of the AP. */
  std::tr1::unordered_map<std::string, Measurement> measurements ;

public:
  Request(const Mobile *_mobile = NULL,
          const Timestamp &_time_sent = Timestamp(),
          const std::tr1::unordered_map<std::string, Measurement>
          &_measurements =
            std::tr1::unordered_map<std::string, Measurement>()):
    type(OWL_REQUEST_UNDEFINED),
    mobile(const_cast<Mobile*>(_mobile)), time_sent(_time_sent),
    measurements(_measurements) {}

  Request(const std::tr1::unordered_map<std::string, Measurement>
          &_measurements):
    type(OWL_REQUEST_UNDEFINED),
    mobile(NULL), measurements(_measurements) {}

  Request(const Timestamp &_time_sent,
          const std::tr1::unordered_map<std::string, Measurement>
          &_measurements =
            std::tr1::unordered_map<std::string, Measurement>()):
    type(OWL_REQUEST_UNDEFINED),
    mobile(NULL), time_sent(_time_sent),
    measurements(_measurements) {}

  Request(const Request &source):
    type(source.type),
    mobile(source.mobile), time_sent(source.time_sent),
    measurements(source.measurements) {}

  virtual ~Request(void) ;

  /** @name Read accessors */
  //@{
  uint8_t get_type(void) const ;
  Mobile* get_mobile(void) const ;
  const Timestamp& get_time_sent(void) const ;
  const std::tr1::unordered_map<std::string, Measurement>&
  get_measurements(void) const ;
  //@}

  /** @name Write accessors */
  //@{
  void set_type(const uint8_t _type) ;
  void set_mobile(const Mobile *_mobile) ;
  void set_time_sent(const Timestamp &_time_sent) ;
  void set_measurements(const std::tr1::unordered_map
                        <std::string, Measurement> &_measurements) ;
  void clear(void) ;
  //@}

  /** @name Operators */
  //@{
  const Request& operator=(const Request &source) ;
  bool operator==(const Request &comp) const ;
  bool operator!=(const Request &comp) const ;
  operator bool(void) const ;
  //@}

  /// Displays a Request
  friend std::ostream& operator<<(std::ostream &os, const Request &r) ;

  /// Hash a Request
  friend std::size_t hash_value(const Request &source) ;
} ;



/* *** Read accessors *** */



inline uint8_t Request::get_type() const
{
  return type ;
}


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


inline const Timestamp& Request::get_time_sent() const
{
  return time_sent ;
}


inline const std::tr1::unordered_map<std::string, Measurement>&
Request::get_measurements(void) const
{
  return measurements ;
}



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


inline void Request::set_type(const uint8_t _type)
{
  type = _type ;
}


inline void Request::set_mobile(const Mobile *_mobile)
{
  mobile = const_cast<Mobile*>(_mobile) ;
}


inline void Request::set_time_sent(const Timestamp &_time_sent)
{
  time_sent = _time_sent ;
}


inline void Request::
set_measurements(const std::tr1::unordered_map<std::string, Measurement>
                 &_measurements)
{
  measurements = _measurements ;
}



/* *** Operators *** */


inline bool Request::operator!=(const Request &comp) const
{
  return !(*this == comp) ;
}


/**
 * @return \em false if the Request is empty.
 * @return \em true if at least one attribute is initialised.
 */
inline Request::operator bool() const
{
  return
    mobile != NULL ||
    time_sent ||
    measurements.size() > 0 ;
}



#endif // _OWLPS_POSITIONING_REQUEST_HH_