#include <arpa/inet.h>
#include <ccan/tal/str/str.h>
#include <common/type_to_string.h>
#include <common/utils.h>
#include <common/wireaddr.h>
#include <wire/wire.h>

/* Returns false if we didn't parse it, and *cursor == NULL if malformed. */
bool fromwire_wireaddr(const u8 **cursor, size_t *max, struct wireaddr *addr)
{
	addr->type = fromwire_u8(cursor, max);

	switch (addr->type) {
	case ADDR_TYPE_IPV4:
		addr->addrlen = 4;
		break;
	case ADDR_TYPE_IPV6:
		addr->addrlen = 16;
		break;
	default:
		return false;
	}
	fromwire(cursor, max, addr->addr, addr->addrlen);
	addr->port = fromwire_u16(cursor, max);

	return *cursor != NULL;
}

void towire_wireaddr(u8 **pptr, const struct wireaddr *addr)
{
	towire_u8(pptr, addr->type);
	towire(pptr, addr->addr, addr->addrlen);
	towire_u16(pptr, addr->port);
}

static char *fmt_wireaddr(const tal_t *ctx, const struct wireaddr *a)
{
	char addrstr[INET6_ADDRSTRLEN];
	char *ret, *hex;

	switch (a->type) {
	case ADDR_TYPE_IPV4:
		if (!inet_ntop(AF_INET, a->addr, addrstr, INET_ADDRSTRLEN))
			return "Unprintable-ipv4-address";
		return tal_fmt(ctx, "%s:%u", addrstr, a->port);
	case ADDR_TYPE_IPV6:
		if (!inet_ntop(AF_INET6, a->addr, addrstr, INET6_ADDRSTRLEN))
			return "Unprintable-ipv6-address";
		return tal_fmt(ctx, "%s:%u", addrstr, a->port);
	case ADDR_TYPE_PADDING:
		break;
	}

	hex = tal_hexstr(ctx, a->addr, a->addrlen);
	ret = tal_fmt(ctx, "Unknown type %u %s:%u", a->type, hex, a->port);
	tal_free(hex);
	return ret;
}
REGISTER_TYPE_TO_STRING(wireaddr, fmt_wireaddr);