node-red-contrib-knx-ultimate/nodes/utils/utils.js

Control your KNX and KNX Secure intallation via Node-Red! A bunch of KNX nodes, with integrated Philips HUE control and ETS group address importer. Easy to use and highly configurable.

module.exports.ToBoolean = function ToBoolean (value, _configTranslationNode) {
  let res = false
  const decimal = /^\s*[+-]{0,1}\s*([\d]+(\.[\d]*)*)\s*$/

  if (typeof value === 'boolean') {
    return value
  } else if (typeof value === 'string') {
    try {
      let translationTable = []
      if (_configTranslationNode === null) {
        translationTable = DEFAULTTRANSLATIONINPUT.split('\n')
      } else {
        translationTable = _configTranslationNode.commandText.split('\n')
      }
      for (let index = 0; index < translationTable.length; index++) {
        const inputPayloadToBeTranslated = translationTable[index].split(':')[0]
        const outputBoolean = Boolean(translationTable[index].split(':')[1])
        if (
          value.toLowerCase() === inputPayloadToBeTranslated.toLowerCase() &&
          inputPayloadToBeTranslated.toLowerCase() !== ''
        ) {
          return translationTable[index].split(':')[1] === 'true'
        }
      }
    } catch (error) {
      console.log('Boolean-Logic-Ultimate:utils:toBoolean: ' + error.message)
    }
  } else if (typeof value === 'number') {
    // Is it formated as a decimal number?
    if (decimal.test(value)) {
      res = parseFloat(value) != 0
    } else {
      res = value.toLowerCase() === 'true'
    }
    return res
  }
}

module.exports.fetchFromObject = function fetchFromObject (
  _msg,
  _payloadPropName
) {
  // The output cannot be an oblect. In case, return undefined.
  const _index = _payloadPropName.indexOf('.')
  if (_index > -1) {
    return fetchFromObject(
      _msg[_payloadPropName.substring(0, _index)],
      _payloadPropName.substr(_index + 1)
    )
  }
  if (typeof _msg[_payloadPropName] === 'object') return undefined
  return _msg[_payloadPropName]
}

const DEFAULTTRANSLATIONINPUT =
  'on:true\noff:false\nactive:true\ninactive:false\nopen:true\nclosed:false\nclose:false\n1:true\n0:false\ntrue:true\nfalse:false\nhome:true\nnot_home:false\nnormal:false\nviolated:true'

// 14/08/2019 Endpoint for retrieving the ethernet interfaces

module.exports.DiscoverKNXGateways = async function DiscoverKNXGateways () {
  if (bDiscoverKNXGatewaysRunning) return
  bDiscoverKNXGatewaysRunning = true
  const KNXClient = require('knxultimate')
  try {
    if (this.aDiscoveredknxGateways === undefined) {
      this.aDiscoveredknxGateways = await KNXClient.KNXClient.discover(6000)
      bDiscoverKNXGatewaysRunning = false
      return this.aDiscoveredknxGateways
    } else {
      bDiscoverKNXGatewaysRunning = false
      return this.aDiscoveredknxGateways
    }
  } catch (error) { bDiscoverKNXGatewaysRunning = false; this.aDiscoveredknxGateways = []; return this.aDiscoveredknxGateways }
}
let bDiscoverKNXGatewaysRunning = false
module.exports.aDiscoveredknxGateways

module.exports.getDiscoveredknxGateways = function () {
  return module.exports.aDiscoveredknxGateways
}

module.exports.setDiscoveredknxGateways = function (value) {
  module.exports.aDiscoveredknxGateways = value
}