node-red-contrib-kitra/kitra/input/cap_notification_catch.js

kitra-com node-red module

module.exports = function(RED) {
    function CapNotiCatch(config) {
        RED.nodes.createNode(this,config);
        var node = this;
		var util = require("../kitra_util.js");
        this.on('input', function(msg) {
			if(!msg.payload)
				return;
			msg.payload = msg.payload.toString();
			
			var calc_chks = util.getChecksum(msg.payload.substring(1,msg.payload.length-5));
			var pack_chks = msg.payload.substring(msg.payload.length-4,msg.payload.length-2);
			if(calc_chks != pack_chks)
				return;
			//6.4.1	Read state response
			if((msg.payload.indexOf("$KITRA,641,") > -1))
			{
				var splitted = msg.payload.split(",");
				msg.pin = parseInt(splitted[2].split("*")[0]);
				msg.state =  parseInt(splitted[3].split("*")[0]);
				
				node.send([msg, null]);
				return;
			}
			
			//6.4.2	Notification
			if((msg.payload.indexOf("$KITRA,642,") > -1))
			{
				var splitted = msg.payload.split(",");
				msg.pin = parseInt(splitted[2].split("*")[0]);
				msg.type =  parseInt(splitted[3].split("*")[0]);
				
				node.send([null,msg]);
				return;
			}

        });
    }
    RED.nodes.registerType("cap_notification_catch",CapNotiCatch);
}