import encodePacket from "./encodePacket.js"; import decodePacket from "./decodePacket.js"; const SEPARATOR = String.fromCharCode(30); // see https://en.wikipedia.org/wiki/Delimiter#ASCII_delimited_text const encodePayload = (packets, callback) => { // some packets may be added to the array while encoding, so the initial length must be saved const length = packets.length; const encodedPackets = new Array(length); let count = 0; packets.forEach((packet, i) => { // force base64 encoding for binary packets encodePacket(packet, false, encodedPacket => { encodedPackets[i] = encodedPacket; if (++count === length) { callback(encodedPackets.join(SEPARATOR)); } }); }); }; const decodePayload = (encodedPayload, binaryType) => { const encodedPackets = encodedPayload.split(SEPARATOR); const packets = []; for (let i = 0; i < encodedPackets.length; i++) { const decodedPacket = decodePacket(encodedPackets[i], binaryType); packets.push(decodedPacket); if (decodedPacket.type === "error") { break; } } return packets; }; export const protocol = 4; export { encodePacket, encodePayload, decodePacket, decodePayload };