blackmagic-atem-nodered/commands/macroAction.js

Provides control of a BlackMagic ATEM

const commandList = require("./commandList.js");

module.exports = {
  object: function() { return {
    get: "MRPr",
    set: "MAct",
    cmd: "macroAction",
    macroCount: 100,
    data: undefined,
    close() {
      this.data = undefined;
    },
    initializeData(data, flag, commands) {
      var command = {"payload":{"data":{}}};
  
      //If there is no default data fill it assuming no macros are running
      if(this.data === undefined){
        this.data = {};
        for(var i = 0; i < this.macroCount; i++){
          this.data[i] = {};
          this.data[i].macroId = i;
          this.data[i].running = false;
          this.data[i].waiting = false;
          this.data[i].isLooping = false;
          this.data[i].macroProperties = {};
        }
      }
  
      this.processData(data, flag, command, commands, false);
    },
    processData(data, flag, command, commands) {
      if(data.readUInt16BE(2) > this.macroCount) {
        for(var i in this.data) {
          this.data[i].running = data[0].toString(2)[0] == "1";
          this.data[i].waiting = data[0].toString(2)[1] == "1";
          this.data[i].isLooping = data[1].toString(2)[0] == "1";
        }
      }
      else {
        //This causes a crash for some reason
        // this.data[data.readUInt16BE(2)].running = data[0].toString(2)[0] == "1";
        // this.data[data.readUInt16BE(2)].waiting = data[0].toString(2)[1] == "1";
        // this.data[data.readUInt16BE(2)].isLooping = data[1].toString(2)[0] == "1";
      }
  
      command.payload.cmd = this.cmd;
      command.payload.data = this.data;
      return true;
    },
    sendData(command, commands) {
      var error = null;
      var msg = {
        "direction": "node",
        "name": this.set,
        "command": {
          "payload": {
            "cmd": this.cmd,
            "data": this.data
          }
        }
      }
  
      if(command.payload.data.macroId == undefined || command.payload.data.macroId == null){error="macroId parameter is missing";}
      if(command.payload.data.action == undefined || command.payload.data.action == null){error="action parameter is missing";}
      var action = null;
      switch(command.payload.data.action.toLowerCase()) {
        case "run": {action = 0x00; break;}
        case "stop": {action = 0x01; break;}
        case "stoprecording": {action = 0x02; break;}
        case "insertwaitforuser": {action = 0x03; break;}
        case "continue": {action = 0x04; break;}
        case "deletemacro": {action = 0x05; break;}
        default: {error="action parameter is missing. This should be run, stop, stopRecording, intertWaitForUser, continue, or deleteMacro"; break;}
      }
  
      if(error == null) {
        //Generate the packet
        var packet = Buffer.alloc(4).fill(0);
        packet.writeInt16BE(command.payload.data.macroId, 0);
        packet[2] = action;
        msg.direction = "server";
        msg.command.packet = packet; 
      }
  
      if(error != null) {
        var msg = {
          "direction": "node",
          "command": {
            "payload": {
              "cmd": this.cmd,
              "data": error
            }
          }
        }
      }
      return msg;
    },
    //What todo once we are connected
    afterInit(commands) { 
      return {
        "cmd": this.cmd,
        "data": this.data
      }
    }    
  }}
}