#include "../lib/io/io.h"
#include "../lib/sys/mkdir.h"
#include "../lib/sys/creat.h"
#include "../lib/cstr/cstr.h"
#include "../lib/sys/mknod.h"
#include "../lib/sys/errno.h"
#include "../lib/sys/stat.h"

enum {
	FILE,
	DIRECTORY,
	BLOCK_OR_CHARACTER,
	NUMBER_OF_MODES,
};

int(*new_funcs[NUMBER_OF_MODES])(const char *, unsigned int) = {
	&creat,
	&mkdir
};

int new_block_or_character(int argc, char **argv)
{
	if (argc != 4) {
		wff(STDERR_FD, "new -n <name> <type> <major> <major>");
		return -1;
	}

	u32 major = cstr_to_u64(argv[2]);
	u32 minor = cstr_to_u64(argv[3]);
	u32 type  = argv[1][0] == 'c' ? S_IFCHR : S_IFBLK;
	int err;

	if ((err = mknod(argv[0], MODE_USER_READ | MODE_USER_WRITE | type, device(major, minor))) < 0) {
		wff(STDERR_FD, "%s\n", errstr[-err]);
		return -1;
	}

	return 0;
}

int main(int argc, char **argv)
{
	if (argc < 3) {
		wff(STDERR_FD, "new [[-f | -d] <name> ... | -n <name> <type> <major> <minor>]\n");
		return -1;
	}

	int type = FILE;

	if (cstr_length(argv[1]) != 2) {
		wff(STDERR_FD, "error: unknown entry type.\n");
		return -1;
	}

	switch(argv[1][1]) {
		case 'f': type = FILE;      break;
		case 'd': type = DIRECTORY; break;
		case 'n': return new_block_or_character(argc - 2, argv + 2);
		default: wff(STDERR_FD, "error: unknown entry type.\n"); return -1;
	}

	for (int i = 2; i < argc; ++i) {
		new_funcs[type](argv[i], MODE_USER_READ | MODE_USER_WRITE);
	}

	return 0;
}