// MQTT interface

import * as mqtt from 'mqtt'
import { logit, logerror } from './logit.js'

const MQTTHOST = process.env.MQTTHOST || 'rexfue.de'
const MQTTPORT = process.env.MQTTPORT || 1883
const MQTTUSER = process.env.MQTTUSER || 'stzuhr'
const MQTTPASSWD =  process.env.MQTTPASSWD || '74chQCYb'

const client = mqtt.connect(`mqtt://${MQTTHOST}:${MQTTPORT}`, {username: MQTTUSER, password: MQTTPASSWD } )
export let connected = false

export const doConnect = () => {
//    client = mqtt.connect(`mqtt://${MQTTHOST}:${MQTTPORT}`, {user: MQTTUSER, password: MQTTPASSWD } )
}

client.on('error', (e) => {
    logerror(`connect to MQTT  ${e}`)
})

client.on('connect', () => {
    connected = true
    logit(`Connected to MQTT Broker ${MQTTHOST}`)
})

export const doPublish = (topic, msg) => {
    client.publish(topic, msg)
}

export const doClose = () => {
    client.end()
}