#include <libgen.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

typedef int util_main(int, char **);

extern util_main true_main;
extern util_main false_main;
extern util_main basename_main;
extern util_main cat_main;

typedef struct futiles_util futiles_util_t;
struct futiles_util {
	const char *name;
	util_main *main;
};

int display_utils(int, char **);
const futiles_util_t utils[] = {
	{ .name = "futiles", .main = display_utils },
	{ .name = "true", .main = true_main },
	{ .name = "false", .main = false_main },
	{ .name = "basename", .main = basename_main },
	{ .name = "cat", .main = cat_main }
};
#define UTILS_NB (sizeof(utils) / sizeof(futiles_util_t))

int display_utils([[maybe_unused]] int argc, [[maybe_unused]] char *argv[]) {
	fputs("Available utils: ", stdout);
	for (size_t i = 1; i < UTILS_NB; i++) {
		printf("%s ", utils[i].name);
	}
	putc('\n', stdout);

	return EXIT_SUCCESS;
}

int main(int argc, char *argv[]) {
	char *called_basename = basename(argv[0]);

	for (size_t i = 0; i < UTILS_NB; i++) {
		if (strcmp(called_basename, utils[i].name) == 0) {
			return utils[i].main(argc, argv);
		}
	}
	return EXIT_FAILURE;
}