import IPCIDR from "ip-cidr";
export function getIpHash(ip) {
    try {
        // because a single person may control many IPv6 addresses,
        // only a /64 subnet prefix of any IP will be taken into account.
        // (this means for IPv4 the entire address is used)
        const prefix = IPCIDR.createAddress(ip).mask(64);
        return `ip-${BigInt(`0b${prefix}`).toString(36)}`;
    } catch (e) {
        const prefix = IPCIDR.createAddress(ip.replace(/:[0-9]+$/, "")).mask(64);
        return `ip-${BigInt(`0b${prefix}`).toString(36)}`;
    }
}
