logos-messaging-js/src/lib/enr/waku2_codec.ts
2022-05-05 14:40:53 +10:00

40 lines
778 B
TypeScript

export interface Waku2 {
relay: boolean;
store: boolean;
filter: boolean;
lightPush: boolean;
}
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,
};
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;
}