new receiver code to go with basesttion updates

node/new_receiver.js

@@ -0,0 +1,75 @@
+  const dgram = require("dgram");
+  const cellularChunking = require("./cellularChunking");
+
+  let message_id = 0
+
+  const socket = dgram.createSocket("udp4");
+
+  function handleMessage(message, rinfo) {
+    try {
+      str_msg = message.toString('utf8')
+      console.log('str_msg: ', str_msg)
+      console.log("parsed message: ", JSON.parse(str_msg))
+    } catch (e) {
+      console.log('some error parsing message: ', e)
+    }
+    try {
+      str_msg = message.toString('utf8')
+      msg = JSON.parse(JSON.parse(str_msg)) // WHAT THE HELL?
+      message_id = message_id + 1
+      theMsg = {
+        'data': {
+          'mi': 360,
+          'mo': 0,
+          'wl': 4
+        },
+        'target': msg['source'],
+        'msg_type': 'settings'
+      }
+      console.log('to reply: ', theMsg)
+      const theRespChunks = cellularChunking.chunk_message(JSON.stringify(theMsg), message_id);
+      thisSend(theRespChunks, socket, rinfo)
+    } catch (e) {
+      console.log('some error sending reply message: ', e)
+    }
+
+  }
+
+  function thisSend(theChunks, socket, rinfo, thisFilePath, fileList) {
+    console.log("Send response")
+    socket.send(theChunks[0], rinfo.port, rinfo.address, (err) => {
+      if (err) {
+        console.log(err);
+      } else {
+        console.log("send chunk");
+        if (theChunks.length > 1) {
+          setTimeout(
+            thisSend,
+            1000,
+            theChunks.slice(1),
+            socket,
+            rinfo,
+            thisFilePath,
+            fileList,
+          );
+        }/* else if (fileList.length > 1) {
+          sendFile(socket, rinfo, thisFilePath, fileList.slice(1));
+        }*/
+      }
+    });
+  }
+
+  socket.on("listening", () => {
+    let addr = socket.address();
+    console.log(`Listening for UDP packets at ${addr.address}:${addr.port}`);
+  });
+
+  socket.on("error", (err) => {
+    console.error(`UDP error: ${err.stack}`);
+  });
+
+  socket.on("message", function(msg, rinfo) {
+    console.log("string message: \n", Buffer.from(msg, 'hex').toString('utf8').trim())
+    cellularChunking.receive_chunk(Buffer.from(msg, 'hex').toString('utf8').trim(), handleMessage, rinfo);
+  });
+  socket.bind(52321);