#include "../lib/tin.h"

#include "iostream"
#include "fstream"
#include "sstream"
#include "string"

#ifdef _WINDOWS
#include "getopt_win.h"
#else
#include "getopt.h"
#endif

void display_help(std::string exe_name)
{
    std::clog << exe_name << " - Generating the Triangular Irregular Networks (TIN) from regular DEM grids\n\n";
    std::clog << "Usage: -z<xyz-file> -r<xmin>/<xmax>/<ymin>/<ymax> -i<dx>/<dy> -m<mesh-file> [-p<poly-file>] [-t<threshold>] [-l<log-file>] [-n<neighbor-file>]\n\n";
    std::clog << "Options:\n";
    std::clog << "  -z  --xyz-file\tinput DEM grid file.\n";
    std::clog << "  -r  --range\tinput DEM grid's range.\n";
    std::clog << "  -i  --interval\tinput DEM grid's interval.\n";
    std::clog << "  -m  --mesh-file\toutput a Gmsh's .msh file of the generated TIN.\n";
    std::clog << "  -p  --poly-file\tinput a polygon file to control the outline shape of the generated TIN.\n";
    std::clog << "  -t  --threshold\tthreshold of the maximal error of the generated TIN with respect to the input DEM grid.\n";
    std::clog << "  -l  --log-file\toutput a .log file of the maximal error of the generated TIN.\n";
    std::clog << "  -n  --neighbor-file\toutput a .neigh file of the maximal error of the generated TIN.\n";
    return;
}

int main(int argc, char const *argv[])
{
    static struct option long_opts[] = 
    {
        {"xyz-file", required_argument, NULL, 'z'},
        {"range", required_argument, NULL, 'r'},
        {"interval", required_argument, NULL, 'i'},
        {"mesh-file", required_argument, NULL, 'm'},
        {"poly-file", required_argument, NULL, 'p'},
        {"threshold", required_argument, NULL, 't'},
        {"log-file", required_argument, NULL, 'l'},
        {"neighbor-file", required_argument, NULL, 'n'},
        {0, 0, 0, 0},
    };

    if (argc == 1)
    {
        display_help(argv[0]);
        return 0;
    }
    return 0;
}