#ifndef _FUNC_H
#define _FUNC_H
#include "iostream"
#include "fstream"
#include "sstream"
#include "iomanip"
#include "stdio.h"
#include "string.h"
#include "list"
#define OUTFILE "-o"
#define RESET "\033[0m" /* reset */
#define BOLDRED "\033[1m\033[31m" /* Bold Red */
using namespace std;

struct loc
{
	double geox,geoy,altitude;
	string tag;
};
typedef list<loc> LocList;

class XyzGpx
{
public:
	XyzGpx();
	~XyzGpx();
	int readxyz(char*);
	int outgpx(char*);
private:
	LocList list_loc;
	LocList::iterator il;
	loc temp_loc;

	double outbox[4];
};

XyzGpx::XyzGpx()
{
	outbox[0] = outbox[2] = 1e+30;
	outbox[1] = outbox[3] = -1e+30;
}

XyzGpx::~XyzGpx()
{
	if(!list_loc.empty()) list_loc.clear();
}

int XyzGpx::readxyz(char* filename)
{
	stringstream stemp;
	string strtemp;
	ifstream xyzin(filename);
	if (!xyzin)
	{
		cout<<filename<<" not found!"<<endl;
		return 1;
	}
	else
	{
		while(getline(xyzin,strtemp))
		{
			if (strtemp!="")
			{
				stemp.clear();
				stemp.str(strtemp);
				stemp>>temp_loc.tag>>temp_loc.geox>>temp_loc.geoy>>temp_loc.altitude;
				list_loc.push_back(temp_loc);
				if(temp_loc.geox<outbox[0]) outbox[0] = temp_loc.geox;
				if(temp_loc.geox>outbox[1]) outbox[1] = temp_loc.geox;
				if(temp_loc.geoy<outbox[2]) outbox[2] = temp_loc.geoy;
				if(temp_loc.geoy>outbox[3]) outbox[3] = temp_loc.geoy;
			}
		}
		xyzin.close();
		return 0;
	}
}

int XyzGpx::outgpx(char* filename)
{
	ofstream gpxout(filename);
	if (!gpxout)
	{
		cout<<"can not create "<<filename<<endl;
		return 1;
	}
	else
	{
		gpxout<<"<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>"<<endl
		<<"<gpx xmlns=\"http://www.topografix.com/GPX/1/1\" creator=\"MapSource 6.15.6\" version=\"1.1\" "<<endl
		<<"xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" xsi:schemaLocation=\"http://www.topografix.com/GPX/1/1"<<endl
		<<"http://www.topografix.com/GPX/1/1/gpx.xsd\">"<<endl
		<<"  <metadata>"<<endl
		<<"    <link href=\"http://www.garmin.com\">"<<endl
		<<"      <text>Garmin International</text>"<<endl
		<<"    </link>"<<endl
		<<"    <time>2014-07-06T00:40:40Z</time>"<<endl
		<<"    <bounds \"maxlat\"="<<setprecision(8)<<outbox[3]<<" \"maxlon\"="<<outbox[1]<<" \"minlat\"="<<outbox[2]<<" \"minlon\"="<<outbox[0]<<"\"/>"<<endl
		<<"  </metadata>"<<endl;
		for (il=list_loc.begin();il!=list_loc.end();il++)
		{
			temp_loc = *il;
			gpxout<<setprecision(8)
			<<"  <wpt lat=\""<<temp_loc.geox<<"\" lon=\""<<temp_loc.geoy<<"\">"<<endl
			<<"   <ele>"<<temp_loc.altitude<<"</ele>"<<endl
			<<"   <name>"<<temp_loc.tag<<"</name>"<<endl
			<<"   <sym>Dot, White</sym>"<<endl
			<<"   <extensions>"<<endl
			<<"   </extensions>"<<endl
			<<"  </wpt>"<<endl;
		}
		gpxout<<"</gpx>";
		gpxout.close();
		return 0;
	}
}
#endif