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

prisme platform flow engine

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

var _ = require('underscore')

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

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

      var match = command
      if (_.isEmpty(match)) {
        node.error('Command is empty.')
        return
      }
      // add slash if missing
      if (match[0] != '/') {
        match = '/' + match
      }
      // split command
      if (msg.payload != null && _.isString(msg.payload.content)) {
        var commands = msg.payload.content.split(' ')
        // check
        if (commands[0].replace(/(@.*?)$/, '') == match) {
          // store parameters in chat context
          if (commands.length > 1) {
            var idx = 0
            for (idx = 1; idx < commands.length; idx++) {
              chatContext.set('param' + idx, commands[idx])
            }
          }
          // pass through the command
          node.send(msg)
        }
      }
    })
  }
  RED.nodes.registerType('bot-command', BotCommand)
}