replace NodeJS buffer with Uint8Array

src/encoders/info/info-packet-chunk.ts

@@ -1,4 +1,14 @@
 import chunk from '../chunk';
 
-export default (packetHeaderChunk: Buffer, systemNameChunk: Buffer, trackerListChunk: Buffer): Buffer =>
-  chunk(0x6756, Buffer.concat([packetHeaderChunk, systemNameChunk, trackerListChunk]), true);
+export default (
+  packetHeaderChunk: Uint8Array,
+  systemNameChunk: Uint8Array,
+  trackerListChunk: Uint8Array
+): Uint8Array => {
+  const chunkData = new Uint8Array(packetHeaderChunk.length + systemNameChunk.length + trackerListChunk.length);
+
+  chunkData.set(packetHeaderChunk);
+  chunkData.set(systemNameChunk, packetHeaderChunk.length);
+  chunkData.set(trackerListChunk, packetHeaderChunk.length + systemNameChunk.length);
+  return chunk(0x6756, chunkData, true);
+};

src/encoders/info/info-system-name-chunk.ts

@@ -1,3 +1,3 @@
 import chunk from '../chunk';
 
-export default (systemName: string): Buffer => chunk(0x0001, Buffer.from(systemName), false);
+export default (systemName: string): Uint8Array => chunk(0x0001, new TextEncoder().encode(systemName), false);

src/encoders/info/info-tracker-chunk.ts

@@ -1,3 +1,4 @@
 import chunk from '../chunk';
 
-export default (trackerId: number, trackerNameChunk: Buffer): Buffer => chunk(trackerId, trackerNameChunk, true);
+export default (trackerId: number, trackerNameChunk: Uint8Array): Uint8Array =>
+  chunk(trackerId, trackerNameChunk, true);

src/encoders/info/info-tracker-list-chunk.ts

@@ -1,3 +1,19 @@
 import chunk from '../chunk';
 
-export default (trackerChunks: Buffer[]): Buffer => chunk(0x0002, Buffer.concat(trackerChunks), true);
+export default (trackerChunks: Uint8Array[]): Uint8Array => {
+  let trackerChunksTotalLength = 0;
+
+  trackerChunks.forEach((trackerChunk) => {
+    trackerChunksTotalLength += trackerChunk.length;
+  });
+
+  const trackerChunksBytes = new Uint8Array(trackerChunksTotalLength);
+
+  let offset = 0;
+
+  trackerChunks.forEach((trackerChunk) => {
+    trackerChunksBytes.set(trackerChunk, offset);
+    offset += trackerChunk.length;
+  });
+  return chunk(0x0002, trackerChunksBytes, true);
+};

src/encoders/info/info-tracker-name-chunk.ts

@@ -1,3 +1,3 @@
 import chunk from '../chunk';
 
-export default (trackerName: string) => chunk(0x0000, Buffer.from(trackerName), false);
+export default (trackerName: string) => chunk(0x0000, new TextEncoder().encode(trackerName), false);