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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 | 1x 1x 1x 1x | 'use strict';
const Packet = {
size: 32
};
/**
* Converts packet specific data from a buffer to an object
* @param {Buffer} buf Buffer containing only packet specific data no header
* @return {Object} Information contained in packet
*/
Packet.toObject = function(buf) {
const obj = {};
let offset = 0;
if (buf.length !== this.size) {
throw new Error('Invalid length given for stateLabel LIFX packet');
}
obj.label = buf.toString('utf8', offset, offset + 32);
obj.label = obj.label.replace(/\0/g, '');
offset += 32;
return obj;
};
/**
* Converts the given packet specific object into a packet
* @param {Object} obj object with configuration data
* @param {String} obj.label label to set, maximum 32 bytes
* @return {Buffer} packet
*/
Packet.toBuffer = function(obj) {
const buf = Buffer.alloc(this.size);
buf.fill(0);
let offset = 0;
buf.write(obj.label, offset, 32, 'utf8');
offset += 32;
return buf;
};
module.exports = Packet;
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