prisme-flow/nodes/bridge/bot/bot-topic.js

prisme platform flow engine

/**
 * Created by prisme.io on 09/06/2017.
 */

var utils = require('./lib/helpers/utils')

module.exports = function (RED) {
  function BotTopic (config) {
    RED.nodes.createNode(this, config)
    var node = this

    node.rules = config.rules

    this.on('input', function (msg) {
      var originalMessage = msg.originalMessage
      var chatContext = msg.chat()

      var rules = node.rules

      // do nothing
      if (originalMessage == null || rules.length == 0) {
        return
      }
      var output = []
      var currentTopic = chatContext.get('topic')

      var matched = false

      rules.forEach(function (rule) {
        if (!matched && utils.matchContext(currentTopic, rule.topic)) {
          matched = true
          output.push(msg)
        } else {
          output.push(null)
        }
      })
      node.send(output)
    })
  }

  RED.nodes.registerType('bot-topic', BotTopic)
}