atem.js

// INIT VARIABLES FOR ATEM CONTROL
const { Atem } = require("atem-connection");
const myAtem = new Atem(); //{ externalLog: console.log })
var logupdates = false;
var tallyUpdateInfo;
var { ClientIP } = require("./settings");

// INIT VARIABLES FOR WS & HTML
var app = require("express")();
var http = require("http").createServer(app);
var io = require("socket.io")(http);
var args;

try {
  args = process.argv.slice(2);
} catch {
  args = ["-z"];
}

if (args[0] == "-r") {
  console.log("remote mode started");
}

// START OF WS & HTML PROGRAM

app.get("/", function (req, res) {
  res.sendFile(__dirname + "/index.html");
});

app.get("/remote", function (req, res) {
  if (args[0] == "-r") {
    res.sendFile(__dirname + "/remote.html");
  }
});

http.listen(80, function () {
  console.log("HTML server active");
});

io.on("connection", function (socket) {
  console.log("client connected");
  if (logupdates == true) {
    io.emit("update", [
      tallyUpdateInfo.programInput,
      tallyUpdateInfo.previewInput,
    ]);
  }
  socket.on("Program", function (msg) {
    myAtem.changeProgramInput(msg);
  });
  socket.on("Preview", function (msg) {
    myAtem.changePreviewInput(msg);
  });
  socket.on("dsk", function () {
    myAtem.setDownstreamKeyFillSource(3);
    myAtem.setDownstreamKeyCutSource(4);
    myAtem.setDownstreamKeyGeneralProperties((preMultiply = true));
    myAtem.autoDownstreamKey();
    console.log("dsk");
  });
  socket.on("cut", function () {
    myAtem.cut();
  });
  socket.on("fade", function () {
    myAtem.autoTransition();
  });
  socket.on("disconnect", function () {
    console.log("client disconnected");
  });
});

// START OF ATEM PROGRAM

myAtem.connect(ClientIP);

myAtem.on("connected", () => {
  //myAtem.changeProgramInput(2).then((res) => {
  //console.log(res)
  // ProgramInputCommand {
  // 	flag: 0,
  // 	rawName: 'PrgI',
  // 	mixEffect: 0,
  // 	properties: { source: 3 },
  // 	resolve: [Function],
  // 	reject: [Function] }
  //})
  //console.log(myAtem.state)
  setTimeout(allowLogging, 2000);
  myAtem.setUpstreamKeyerOnAir(false, 0, 0); /////////////// I THINK THIS SHOULD KILL THE IRRITATING KEY 1 THAT KEEPS COMING ON LIKE A DICKHEAD ON BOOT
  myAtem.setTransitionStyle(
    (transitionProperties = {
      style: 0,
      selection: 1,
      nextStyle: 0,
      nextSelection: 1,
    })
  ); /////////////// THIS ONE TOO
});

function allowLogging() {
  logupdates = true;
  console.log("Logging started");
  logAtemState();
}

myAtem.on("stateChanged", function (err, state) {
  //UPDATE PROGRAM & PREVIEW
  if (logupdates == true) {
    logAtemState();
  }
});

function logAtemState() {
  console.log("STATE UPDATE");
  tallyUpdateInfo = Object.values(myAtem.state.video.ME)[0];
  console.log("Preview");
  console.log(tallyUpdateInfo.previewInput);
  console.log("Program");
  console.log(tallyUpdateInfo.programInput);
  io.emit("update", [
    tallyUpdateInfo.programInput,
    tallyUpdateInfo.previewInput,
  ]);
}