js-waku/packages/enr/src/waku2_codec.ts

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import type { Waku2 } from "@waku/interfaces";
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export function encodeWaku2(protocols: Waku2): number {
let byte = 0;
if (protocols.lightPush) byte += 1;
byte = byte << 1;
if (protocols.filter) byte += 1;
byte = byte << 1;
if (protocols.store) byte += 1;
byte = byte << 1;
if (protocols.relay) byte += 1;
return byte;
}
export function decodeWaku2(byte: number): Waku2 {
const waku2 = {
relay: false,
store: false,
filter: false,
lightPush: false
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};
if (byte % 2) waku2.relay = true;
byte = byte >> 1;
if (byte % 2) waku2.store = true;
byte = byte >> 1;
if (byte % 2) waku2.filter = true;
byte = byte >> 1;
if (byte % 2) waku2.lightPush = true;
return waku2;
}