import { client, xml } from '@xmpp/client'
import debug from '@xmpp/debug'
import DOMPurify from 'isomorphic-dompurify'

import Action from './../../packages/server/actions/action.js'
import logger from './../../packages/server/helper/logger.js'

/**
 *  using a xmpp-server to send messages in a group
 * 
 *  
 *  @author Björn Hase <me@herr-hase.wtf>
 *  @license hhttps://www.gnu.org/licenses/gpl-3.0.en.html GPL-3
 *  @link https://git.node001.net/HerrHase/signpost.git
 *
 */

class Xmpp extends Action {

    /**
     *  run 
     *
     */
    async run() {

        // cleaning data 
        this._sanitize()

        const xmpp = client({
            service: process.env.XMPP_SERVICE,
            domain: process.env.XMPP_DOMAIN,
            username: process.env.XMPP_USERNAME,
            password: process.env.XMPP_PASSWORD
        })

        if (process.env.APP_DEBUG) {
            debug(xmpp, true)
        }

        // handle if client has errors
        xmpp.on('error', (error) => {
            logger(this.flow.uuid).error('xmpp / error ' + error)
        })

        // handle if client goes online
        xmpp.once('online', async (address) => {

            // join group
            await xmpp.send(xml('presence', { to: process.env.XMPP_ROOM + '/' + process.env.XMPP_USERNAME }, xml('x', { xmlns: 'http://jabber.org/protocol/muc' })))

            // sends a message to the room 
            const message = xml(
                'message', {
                    type: 'groupchat',
                    to: process.env.XMPP_ROOM
                },
                xml('body', {}, this.data.message)
            )

            await xmpp.send(message)
            logger(this.flow.uuid).info('xmpp / message send')

            await xmpp.disconnect()
        })

        await xmpp.start()
    }

    /**
     *  clearing data from any malicous code
     *
     */
    _sanitize() {
        this.data.message = DOMPurify.sanitize(this.data.message)
    }
}

export default Xmpp