#include <stdlib.h>
#include <string.h>
#include "sandbox.h"

void print_help(const char *progname, int exit_status)
{
	fprintf(stderr, "Usage: %s [options] [--] command\n", progname);
	fprintf(stderr, "Options:\t--tmp-dir directory - path to temporary dir (default: /tmp)\n");
	exit(exit_status);
}

static int parse_param(t_param *result, const char **av)
{
	if (!strcmp(*av, "--"))
		result->cmd = ++av;
	else if (!strcmp(*av, "--tmp-dir"))
		result->tmpdir = *(++av);
	else if (!strcmp(*av, "-v") || !(strcmp(*av, "--verbose")))
		result->verbose = stderr;
	return 1;
}

t_param *parse_argv(const char **av)
{
	t_param *result;
	const char *progname;

	result = (t_param *) malloc(sizeof(*result));
	if (result == NULL)
		return NULL;
	bzero(result, sizeof(*result));
	result->tmpdir = "/tmp";
	for (progname = *(av++); *av && !result->cmd; ++av)
	{
		if (**av == '-')
		{
 			if (!parse_param(result, av))
			{
				free(result);
				print_help(progname, EXIT_FAILURE);
			}
		}
		else
			result->cmd = av;
	}
	return result;
}