#ifndef GPSDATA_H
#define GPSDATA_H

#include "../../data/Timestamp.h"
#include "../../geo/EarthPos.h"
#include "../../math/Floatingpoint.h"

struct GPSData {

	/** time this measurement was received (NOT the GPS-time) */
	Timestamp tsReceived;

	FPDefault lat;			// deg
	FPDefault lon;			// deg
	FPDefault alt;			// m above sea-level

	FPDefault accuracy;		// m [might be NAN]
	FPDefault speed;		// m/s [might be NAN]

	/** ctor for invalid/unknown data */
	GPSData() : tsReceived(), lat(NAN), lon(NAN), alt(NAN), accuracy(NAN), speed(NAN) {;}

	/** ctor */
	GPSData(const Timestamp tsReceived, const float lat, const float lon, const float alt) : tsReceived(tsReceived), lat(lat), lon(lon), alt(alt), accuracy(NAN), speed(NAN)  {;}

	/** ctor */
	GPSData(const Timestamp tsReceived, const float lat, const float lon, const float alt, const float accuracy) : tsReceived(tsReceived), lat(lat), lon(lon), alt(alt), accuracy(accuracy), speed(NAN)  {;}

	/** get as EarthPos struct */
	EarthPos toEarthPos() const {
		return EarthPos(lat, lon, alt);
	}

	/** data valid? */
	bool isValid() const {
		return (lat == lat) && (lon == lon);
	}

	bool operator == (const GPSData& o) const {
		return	EQ_OR_NAN(lat, o.lat) &&
				EQ_OR_NAN(lon, o.lon) &&
				EQ_OR_NAN(alt, o.alt) &&
				EQ_OR_NAN(accuracy, o.accuracy) &&
				EQ_OR_NAN(speed, o.speed);
	}

	std::string asString() const {
		return "(lat: " + std::to_string(lat) + ", lon: " + std::to_string(lon) + ", alt: " + std::to_string(alt) + " acur: " + std::to_string(accuracy) + ")";
	}

private:

	static inline bool EQ_OR_NAN(const FPDefault a, const FPDefault b) {return (a==b) || ( (a!=a) && (b!=b) );}

};

#endif // GPSDATA_H