From a184e0899b9939cb751cc90bd7a54a0eb74bba18 Mon Sep 17 00:00:00 2001
From: Joel Wetzell <jwetzell@yahoo.com>
Date: Sat, 15 Mar 2025 13:09:54 -0500
Subject: [PATCH] add encoder for universe module

---
 src/encoders/index.ts             |  2 ++
 src/encoders/lighting/universe.ts | 25 +++++++++++++++++++++++++
 tests/lighting-encode.test.js     | 10 ++++++++++
 3 files changed, 37 insertions(+)
 create mode 100644 src/encoders/lighting/universe.ts

diff --git a/src/encoders/index.ts b/src/encoders/index.ts
index 5d83213..afc9326 100644
--- a/src/encoders/index.ts
+++ b/src/encoders/index.ts
@@ -1,5 +1,6 @@
 import ChannelBlock from './lighting/channel-block';
 import Spot from './lighting/spot';
+import Universe from './lighting/universe';
 import CentroidAccelVelocity from './motion/centroid-accel-velocity';
 import CentroidPosition from './motion/centroid-position';
 import OrientationEuler from './motion/orientation-euler';
@@ -24,6 +25,7 @@ export const Encoders = {
   TrackedPointAccelVelocity,
   ZoneCollisionDetection,
   ZoneObject,
+  Universe,
   Spot,
   ChannelBlock,
 };
diff --git a/src/encoders/lighting/universe.ts b/src/encoders/lighting/universe.ts
new file mode 100644
index 0000000..1954287
--- /dev/null
+++ b/src/encoders/lighting/universe.ts
@@ -0,0 +1,25 @@
+export default (id: number, spotModules: Uint8Array[], isLittleEndian: boolean = false): Uint8Array => {
+  let totalSpotModuleSize = 1 + 2 + 2 + 2;
+
+  spotModules.forEach((spotModule) => {
+    totalSpotModuleSize += spotModule.byteLength;
+  });
+
+  const bytes = new Uint8Array(totalSpotModuleSize);
+  const view = new DataView(bytes.buffer, bytes.byteOffset, bytes.byteLength);
+
+  let dataOffset = 0;
+  view.setUint8(dataOffset, 0x09);
+  dataOffset += 1;
+  view.setUint16(dataOffset, bytes.byteLength, isLittleEndian);
+  dataOffset += 2;
+  view.setUint16(dataOffset, id, isLittleEndian);
+  dataOffset += 2;
+  view.setUint16(dataOffset, spotModules.length, isLittleEndian);
+  dataOffset += 2;
+  spotModules.forEach((spotModule) => {
+    bytes.set(spotModule, dataOffset);
+    dataOffset += spotModule.length;
+  });
+  return bytes;
+};
diff --git a/tests/lighting-encode.test.js b/tests/lighting-encode.test.js
index 2160059..abda897 100644
--- a/tests/lighting-encode.test.js
+++ b/tests/lighting-encode.test.js
@@ -3,6 +3,16 @@ const { describe, it } = require('node:test');
 const { Encoders } = require('../');
 
 const goodTests = [
+  {
+    description: 'Universe + Spot + Single Channel Block',
+    expected: new Uint8Array([
+      0x09, 0x00, 0x15, 0x12, 0x34, 0x00, 0x01, 0x0a, 0x00, 0x0e, 0x12, 0x34, 0x00, 0x01, 0x00, 0x01, 0x00, 0x08, 0x00,
+      0x06, 0x40,
+    ]),
+    bytes: () => {
+      return Encoders.Universe(0x1234, [Encoders.Spot(0x1234, 1, [Encoders.ChannelBlock(8, 6, 64)])]);
+    },
+  },
   {
     description: 'Spot + Single Channel Block',
     expected: new Uint8Array([0x0a, 0x00, 0x0e, 0x12, 0x34, 0x00, 0x01, 0x00, 0x01, 0x00, 0x08, 0x00, 0x06, 0x40]),