#ifndef MACROS_H
#define MACROS_H
/**
 * ARRAY_SIZE - get the number of elements in a visibl array.
 *
 * DOES NOT WORK ON POINTERS
 */
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
#endif

#include <unistd.h> /* getopt(3p) */
#include <stdio.h>
#include <stdlib.h>
/**
 * ani init [-h|--help] [--channel <CHANNEL>] <PATH>
 */
/**
 * Init initializes a new repository as
 *
 * mkdir .pijul/{pristine, changes}
 *
 * plus maybe a few other things?
 */
int
init()
{
	/* create the directory with mkdir(2) */
	printf("init!\n");
	return 0;
}
/**
 * ani init [-c <channel>] [<dir>]
 */
int cmd_init(int argc, const char **argv)
{
	int c;
	char *channel = "main";
	/* Parse cmdline args */
	while ((c = getopt(argc, argv, "")) != -1) {
		switch (c) {
		case 'c':
			channel = optarg;
			break;
		case '?':
			fprintf(stderr, "unrecognized option '-%c'\n", optopt);
			exit(1);
		}
	}
	/* Return result of init() */
	return init();
}

int cmd_init(int argc, const char *argv[]);

#include <stdlib.h>
#include <string.h>
#include "macros.h"
#include "commands.h"

struct cmd {
	const char *name;
	int (*fn)(int, const char **);
};
static struct cmd commands[] = {
	{ "init", cmd_init },
};
/**
 * Print usage string and exit.
 */

	exit(0);

// TODO: impl cmdline argument parsing
//
// ani init  Initialize an empty pijul repository
// ani key   Key generation and management

static struct cmd *
find_cmd(const char *s)
{
	int i;
	struct cmd *p;
	for (i = 0; i < ARRAY_SIZE(commands); i++) {
		p = commands + i;
		if (!strcmp(s, p->name))
			return p;
	}
	return NULL;
}
int
cmd_main(int argc, char *argv[])
{
	char *cmd_name;
	struct cmd *command;
	cmd_name = *++argv;
	command = find_cmd(cmd_name);
	if (command == NULL) {
		fprintf(stderr, "command not found '%s'\n", cmd_name);
		return -1;
	}
	argc--;
	return (command->fn)(argc, argv);
}
/**
 * TODO: impl cmdline argument parsing
 *
 * ani init  Initialize an empty pijul repository
 * ani key   Key generation and management
 *
 */

	return cmd_main(argc, argv);

OBJS += init.o