#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <getopt.h>
#include "readline.h"
#include "cdecl.h"

static const char *progname = "cdecl99";
static const char sopts[] = "VH";
static const struct option lopts[] = {
	{ "version", 0, NULL, 'V' },
	{ "help",    0, NULL, 'H' },
	{ 0 }
};

static void print_version(void)
{
	puts(PACKAGE_STRING);
	puts("Copyright (C) 2011 Nick Bowler.");
	puts("License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.");
	puts("This is free software: you are free to change and redistribute it.");
	puts("There is NO WARRANTY, to the extent permitted by law.");
}

static void print_usage(FILE *f)
{
	fprintf(f, "Usage: %s [options]\n", progname);
}

static void print_help(void)
{
	print_usage(stdout);
	puts("Detailed help coming soon.");
}

static int repl(void)
{
	struct cdecl *decl;
	print_version();

	for (char *line; (line = readline("> ")); free(line)) {
		decl = cdecl_parse_decl(line);
		cdecl_free(decl);
	}

	return 0;
}

int main(int argc, char **argv)
{
	int opt;

	if (argc > 0)
		progname = argv[0];

	while ((opt = getopt_long(argc, argv, sopts, lopts, NULL)) != -1) {
		switch (opt) {
		case 'V':
			print_version();
			return EXIT_SUCCESS;
		case 'H':
			print_help();
			return EXIT_SUCCESS;
		default:
			print_usage(stderr);
			return EXIT_FAILURE;
		}
	}

	if (repl() != 0)
		return EXIT_FAILURE;

	return EXIT_SUCCESS;
}