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/*
 * meme.c - Measmesh command-line processing and setup
 *
 * Written 2014-2015 by Werner Almesberger
 * Copyright 2014-2015 by Werner Almesberger
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */


#include <stdbool.h>
#include <stdlib.h>
#include <stdio.h>
#include <unistd.h>

#include "time.h"
#include "mesh.h"
#include "stl.h"
#include "overlay.h"
#include "slice.h"
#include "gui.h"


#define	N_OVERLAYS	3


static bool count_edge(const struct vertex *a, const struct vertex *b,
    void *user)
{
	unsigned *count = user;

	(*count)++;
	return 0;
}


static unsigned count_edges(void)
{
	unsigned count = 0;

	edge_foreach(count_edge, &count);
	return count;
}


static void slice_out(double x, double y, double z, bool last)
{
	printf("%f %f %f\n%s", x, y, z, last ? "\n" : "");
}


static void usage(const char *name)
{
	fprintf(stderr,
"usage: %s [-l logfile] [-o overlay.gp ...] [file.stl]\n"
"       %s -s plane.gp [-n] [file.stl]\n",
	    name, name);
	exit(1);
}


int main(int argc, char **argv)
{
	int c;
	const char *logfile = NULL;
	const char *slice = NULL;
	bool needle = 0;
	const struct overlay *overlays[N_OVERLAYS];
	unsigned n_overlays = 0;
	struct time t_load;

	while ((c = getopt(argc, argv, "l:no:s:")) != EOF)
		switch (c) {
		case 'l':
			logfile = optarg;
			break;
		case 'n':
			needle = 1;
			break;
		case 'o':
			if (n_overlays == N_OVERLAYS) {
				fprintf(stderr, "too many overlays\n");
				exit(1);
			}
			overlays[n_overlays] = overlay_load(optarg);
			n_overlays++;
			break;
		case 's':
			slice = optarg;
			break;
		default:
			usage(*argv);
		}

	switch (argc - optind) {
	case 0:
		time_start(&t_load);
		stl_load_file(stdin);
		time_stop(&t_load);
		break;
	case 1:
		time_start(&t_load);
		stl_load(argv[optind]);
		time_stop(&t_load);
		break;
	default:
		usage(*argv);
	}

	fprintf(stderr, "STL loaded in %.3f s\n", time_ms(&t_load)/1000.0);
	fprintf(stderr, "%u edges\n", count_edges());

	if (slice) {
		slice_load(slice);
		slice_run(slice_out, needle);
		exit(1);
	}

	gui(logfile, overlays, n_overlays);

	return 0;
}