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const {validate} = require('../../lifx');
const Packet = {
size: 8
};
/**
* @typedef {Object} HSBK
* @property {Number} hsbk.hue - hue value
* @property {Number} hsbk.saturation - saturation value
* @property {Number} hsbk.brightness - brightness value
* @property {Number} hsbk.kelvin - kelvin value
*/
/**
* @typedef {Object} OffsetHSBK
* @property {Number} offset - offset after the buffer
* @property {HSBK} hsbk - HSBK value
*
*/
/**
* Converts the given packet specific object into a packet
* @param {Buffer} buf hsbk as buffer
* @param {Number} offset offset to the buffer
* @return {OffsetHSBK} packet
*/
Packet.toObject = function(buf, offset) {
const hsbk = {};
hsbk.hue = buf.readUInt16LE(offset);
offset += 2;
hsbk.saturation = buf.readUInt16LE(offset);
offset += 2;
hsbk.brightness = buf.readUInt16LE(offset);
offset += 2;
hsbk.kelvin = buf.readUInt16LE(offset);
offset += 2;
return {offset, hsbk};
};
/**
* @typedef {Object} OffsetBuffer
* @property {number} offset - offset after the buffer
* @property {Buffer} buffer - buffer
*/
/**
* Converts the given packet specific object into a packet
* @param {Buffer} buffer output buffer
* @param {Number} offset offset in the output buffer
* @param {HSBK} hsbk offset in the output buffer
* @return {OffsetBuffer} packet
*/
Packet.toBuffer = function(buffer, offset, hsbk) {
validate.isUInt16(hsbk.hue);
validate.isUInt16(hsbk.saturation);
validate.isUInt16(hsbk.brightness);
validate.isUInt16(hsbk.kelvin);
buffer.writeUInt16LE(hsbk.hue, offset);
offset += 2;
buffer.writeUInt16LE(hsbk.saturation, offset);
offset += 2;
buffer.writeUInt16LE(hsbk.brightness, offset);
offset += 2;
buffer.writeUInt16LE(hsbk.kelvin, offset);
offset += 2;
return {offset, buffer};
};
module.exports = Packet;
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