node-red-contrib-motechat/flow-event/flow-event.js

ultranet topic and payload communication

module.exports = function(RED) {
    "use strict"
    let ini = true;
    let { setEvent, removeEvent, sendEvent } = require('../lib/mcClient.js')
    function flowOnEvent(config) {
        RED.nodes.createNode(this, config)
        let node = this
        node.name = config.name
        sendEvent('checkEvent', true);
        let callback = msg => node.send({...msg })
        let defaultEventName = config.event
        if (defaultEventName === 'status') {
            setEvent('status', callback)
        }

        if (defaultEventName === 'message') {
            setEvent('message', callback)
        }

        node.on('input', async (msg, send, done) => {
            await new Promise(resolve => setTimeout(resolve, 50));
            send = send || function() { node.send.apply(node, arguments) }
            send(msg)
            if (done) done()
        })
        node.on('close', (removed, done) => { 
            sendEvent('checkEvent', false);
            removeEvent(defaultEventName, callback) 
            done()
        })
    }
    RED.nodes.registerType("onEvent", flowOnEvent)

    function flowReEvent(config) {
        RED.nodes.createNode(this, config)
        let node = this
        //let { ErrCode, ErrMsg } = config

        node.on('input', (msg, send, done) => {
            send = send || function() { node.send.apply(node, arguments) }

            if (!msg.mcBack) return
            if (typeof msg.mcBack !== 'function') return
            //msg.mcBack({ ErrCode, ErrMsg, data: msg.payload })
            msg.mcBack(msg.payload)
            if (done) done()
        })
    }
    RED.nodes.registerType("retEvent", flowReEvent)
}