module.exports = function(RED) {
    function mqttdomoinrgb(config) {
        RED.nodes.createNode(this,config);
        this.idx = config.idx;
        this.Savetocontex = config.Savetocontex;
        var flowContext = this.context().flow;
        var node = this;
        node.on('input', function(msg) {
            var r = msg.payload.Color.r;
            var g = msg.payload.Color.g;
            var b = msg.payload.Color.b;
            function componentToHex(c) {
                var hex = c.toString(16);
                return hex.length == 1 ? "0" + hex : hex;
            }
            msg.payload = "#" + componentToHex(r) + componentToHex(g) + componentToHex(b);
            node.send(msg);
            
            if (node.Savetocontex === true) {
                if (node.idx === 'undefined' || node.idx === null || node.idx === "" ) {
                    node.warn("IDX not set");
                } else{
                    flowContext.set(node.idx + "-color", msg.payload)
                }
            }
        });
    }
    RED.nodes.registerType("mqtt-domo-in-rgb",mqttdomoinrgb);
}