import { spawn } from 'child_process'
import chai from 'chai'
import chaiAsPromised from 'chai-as-promised'
import btc from 'better-try-catch'
chai.use(chaiAsPromised)
const expect = chai.expect

import { Consumer } from '../src'

const USOCKET = __dirname + '/sockets/test.sock'
const SOCKET_FILE = 'usocket'

let consumer = new Consumer({path:USOCKET,name:'unix-consumer'})

// const delay = time => new Promise(res=>setTimeout(()=>res(),time))

let socket = {}

describe('Connects and Processes a payload via Unix Socket using JSON packet with alt processor', function(){

  before(async function(){
    socket = spawn('node',['-r', '@std/esm', './test/sockets/'+SOCKET_FILE])
    socket.stdout.on('data', function(buf) {
      console.log('[Socket]', String(buf))
    })
  })

  after(async function(){
    socket.kill()
  })

  it('Tests alternate JSON packet procssing at socket and consumer', async function () {

    let [err] = await btc(consumer.connect)()
    if (err) {
      console.log('unable to connect to socket to start test', consumer.path)
      process.kill(process.pid, 'SIGTERM')
    }

    consumer.registerPacketProcessor(async function (packet) {
      return new Promise((resolve) => {
        packet.payload = 'local:'+packet.payload
        resolve(packet)})
    })
    let packet = { payload:'payload'}
    let res = await consumer.send(packet)
    expect(res.payload).to.equal('local:overwrite default processor from instance at socket => payload')


  }) // end unix socket test

}) // end describe