lint all the things

plugins/sacn/info.html

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+<p><em>sACN</em> requires no configuration.</p>

plugins/sacn/main.js

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+const _ = require('lodash');
+
+exports.defaultName = 'sACN Universe';
+exports.connectionType = 'multicast';
+exports.defaultPort = 5568;
+exports.heartbeatInterval = 5000;
+exports.searchOptions = {
+  type: "multicast",
+  address: getMulticastGroup(1),
+  port: 5568,
+  validateResponse (msg, info) {
+    return msg.toString('utf8', 4, 13) === "ASC-E1.17";
+  },
+};
+exports.defaultPort = 5568;
+
+exports.ready = function ready(device) {
+
+  const d = device;
+  d.data.universes = {};
+  d.data.source = "Unknown Source";
+  d.data.orderedUniverses = [];
+
+  // device.draw();
+  for(let i = 1; i <= 16; i++){
+    d.connection.addMembership(getMulticastGroup(i));
+  }
+  
+};
+
+
+exports.data = function data(device, buf) {
+
+  const univ = buf.readUInt16BE(113);
+  const d = device;
+
+  let u = d.data.universes[univ];
+
+  if(!u){
+    d.data.universes[univ] = {};
+    u = d.data.universes[univ];
+  }
+
+  u.sequence = buf.readUInt8(111);
+  u.priority = buf.readUInt8(108);
+  u.cid = buf.toString('hex', 22, 38);
+  u.slots = Array.prototype.slice.call(buf, 126);
+  if(buf.readUInt8(125) !== 0){
+    u.startCode = buf.readUInt8(125);
+  }
+
+
+  d.data.source = buf.toString('utf8', 44, 108);
+  d.displayName = `${d.data.source} sACN`;
+  d.data.ip = d.addresses[0];
+
+  if(!_.includes(d.data.orderedUniverses, univ)){
+    d.data.orderedUniverses.push(univ);
+    d.data.orderedUniverses.sort();
+    u.slotElems = [];
+    u.slotElemsSet = false;
+
+    d.draw();
+    updateElementsCache(d, d.data.universes, d.data.orderedUniverses);
+
+  }
+
+  d.update("universeData", {
+    u: univ,
+    universe: u,
+    startCode: u.startCode
+  });
+
+};
+
+
+exports.heartbeat = function heartbeat(device) {
+ 
+};
+
+
+
+let lastUpdate = Date.now();
+exports.update = function update(device, doc, updateType, updateData){
+
+  const d = device;
+  const data = updateData;
+
+  if(updateType === "universeData" && data.universe){
+
+    if(Date.now() - lastUpdate > 1000){
+      lastUpdate = Date.now();
+      updateElementsCache(d, d.data.universes, d.data.orderedUniverses);
+    }
+
+    const $elem = doc.getElementById(`universe-${data.u}`);
+
+    if($elem && data.universe.slotElemsSet){
+
+      if(data.universe.priority > 0){
+        for(let i = 0; i < 512; i++){
+          data.universe.slotElems[i].innerText = data.universe.slots[i];
+        }
+
+        const $code = doc.getElementById(`universe-${data.u}-code`);
+        if(data.startCode === 0xDD){
+          $code.innerText = "Net3"
+        }else if(data.startCode === 0x17){
+          $code.innerText = "Text"
+        }else if(data.startCode === 0xCF){
+          $code.innerText = "SIP"
+        }else if(data.startCode === 0xCC){
+          $code.innerText = "RDM"
+        }
+
+      }
+
+    }else{
+      d.draw();
+      updateElementsCache(d, d.data.universes, d.data.orderedUniverses);
+    }
+
+  }else if(updateType === "elementCache"){
+
+    data.orderedUniverses.forEach(univ => { 
+      for(let i = 0; i < 512; i++){
+        data.universes[univ].slotElems[i] = doc.getElementById(`${univ}-${i}`);
+      }
+      data.universes[univ].slotElemsSet = true;
+    });
+
+  }
+  
+
+}
+
+
+function updateElementsCache(device, univ, ordered){
+  device.update("elementCache", {
+    universes: univ,
+    orderedUniverses: ordered
+  });
+}
+
+
+
+
+
+
+
+// From https://github.com/hhromic/e131-node/blob/master/lib/e131.js
+function getMulticastGroup(universe) {
+  if (universe < 1 || universe > 63999) {
+    throw new RangeError('universe should be in the range [1-63999]');
+  }
+  return `239.255.${universe >> 8}.${universe & 0xff}`;
+  
+}

plugins/sacn/styles.css

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+table {
+  margin-bottom: 50px;
+  background-color: #333;
+}
+td,
+th {
+  width: 35px;
+}
+td {
+  background-color: black;
+  text-align: center;
+  border-radius: 3px;
+  color: white;
+  font-size: 13px;
+}
+th {
+  background-color: #222;
+  color: #ccc;
+  font-size: 11px;
+}
+td.data {
+  padding: 7px;
+  font-size: 12px;
+  text-align: left;
+}
+td.data em {
+  font-size: 14px;
+  color: #ff0033;
+}

plugins/sacn/template.ejs

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+<header>
+  <h1><%= data.source %> sACN (E1.31)</h1>
+</header>
+
+
+<div id="universes">
+<% data.orderedUniverses.forEach(univ => { 
+  let universe = data.universes[univ];
+%>
+
+  <table id="universe-<%= univ %>">
+  <tr>
+    <td class="data" colspan="2">
+      Universe
+      <br><em><%= univ %></em>
+    </td>
+    <td class="data" colspan="2">
+      Priority
+      <br><em><%= universe.priority %></em>
+    </td>
+    <td class="data" colspan="7">
+      CID
+      <br><em><%= universe.cid %></em>
+    </td>
+    <td class="data" colspan="4">
+      IP
+      <br><em><%= data.ip %></em>
+    </td>
+    <td class="data" colspan="2">
+      Flavor
+      <br><em id="universe-<%= univ %>-code">0</em>
+    </td>
+  </tr>
+
+  <tr>
+    <th></th>
+    <% for(col=1; col<=16; col++){ %>
+      <th><%= col %></th>
+    <% } %>
+  </tr>
+
+  <% let slot = 0; %>
+  <% for(row=0; row<32; row++){ %>
+    <tr>
+      <th><%= row*16+1 %></th>
+    <% for(col=0; col<16; col++){ %>
+      <% slot++%>
+      <td id="<%= univ %>-<%= row*16+col %>" title="<%= univ %>/<%= slot %>"><%= universe.slots[slot-1] %></td>
+    <% } %>
+    </tr>
+  <% } %>
+
+  
+</table>
+
+<% }); %>
+
+</div>