node-red-contrib-openhab2-helper/color.js

Node-RED openhab2 helper nodes

/**
 * Copyright 2017 IBM Corp.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 **/

module.exports = function(RED) {

    "use strict";
    var convertColor = require('color-convert');


    function convert(n) {
        RED.nodes.createNode(this,n);
        this.output = n.output;
        this.input = n.input;
        var node = this;

        node.on('input', function(msg){
            var responseValue;
            var input = msg.payload;


            switch(node.input) {
                case 'openhab':
                    if (typeof input === 'object' && 'state' in input) {
                        input = input.state.split(',');
                    } else if (typeof input === 'string')  {
                        input = input.split(',');
                    }
                    var obj = {
                        hue: parseInt(input[0]),
                        saturation: parseInt(input[1]),
                        value: parseInt(input[2])
                    };

                    switch(node.output){
                        case 'homekit':
                            responseValue = {"Hue":obj.hue, "Saturation":obj.saturation, "Brightness":obj.value};
                            // if ('payload_in' in msg) {
                            //     msg.payload_in.FromOpenhab = true;
                            // } else {
                            //     msg.payload_in = {"FromOpenhab":true};
                            // }
                        break;
                    }
                break;

                case 'homekit':
                    var payload_in = msg.payload_in;

                    switch(node.output) {
                        case 'openhab':
                            var hsv = msg.payload.state.split(',');

                            if ('Hue' in payload_in) {
                                responseValue = parseInt(payload_in.Hue)+',100,'+parseInt(hsv[2]);
                            }
                            if ('Saturation' in payload_in) {
                                //responseValue = parseInt(hsv[0])+',100,'+parseInt(hsv[2]);
                                responseValue = '';//nothing to update
                            }
                            if ('Brightness' in payload_in) {
                                responseValue = parseInt(hsv[0])+',100,'+parseInt(payload_in.Brightness);
                            }
                            if ('On' in payload_in) {
                                responseValue = payload_in.On === true?'ON':'OFF';
                            }
                        break;
                    }
                break;

            }

            if (responseValue) {
                msg.payload = responseValue;
                node.send(msg);
            } else {
                node.error("no output");
            }
        });
    }
    RED.nodes.registerType("openhab2-helper-color-convert",convert);
}