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'

let tcpsocket_default = {}
let tcpsocket_9080 = {}

describe('Connects and Processes a payload in a JSON packet via TCP Socket', function(){

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

    tcpsocket_9080 = spawn('node',['-r', '@std/esm', './test/sockets/tcpsocket-9080'])
    tcpsocket_9080.stdout.on('data', function(buf) {
      console.log('[Socket]', String(buf))
    })

  })

  after(async function(){
    tcpsocket_default.kill()
    tcpsocket_9080.kill()
  })

  it('with default host and port', async function () {
    let tcpconsumer_default = new Consumer({name:'tcpconsumer', log:false})

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

    tcpconsumer_default.registerPacketProcessor(async function (packet) {
      return new Promise((resolve) => {
        packet.payload = packet.payload +':local'
        resolve(packet)})
    })

    let packet = {payload:'tcp payload'}
    let res = await tcpconsumer_default.send(packet)
    expect(res.payload).to.equal('8080:tcp payload:local')

  }) // end tcp socket test

  it('with alternate port, and registered consumer processor', async function () {

    let tcpconsumer_9080 = new Consumer({port:9080, name:'tcp-consumer-9080'})


    let [err] = await btc(tcpconsumer_9080.connect)()
    if (err) {
      console.log('unable to connect to socket to start test', tcpconsumer_9080.port)
      process.kill(process.pid, 'SIGTERM')
    }

    tcpconsumer_9080.registerPacketProcessor(async function (packet) {
      return new Promise((resolve) => {
        packet.payload = packet.payload +':local'
        resolve(packet)})
    })

    let packet = {payload:'tcp payload'}
    let res = await tcpconsumer_9080.send(packet)
    expect(res.payload).to.equal('9080:tcp payload:local')

  }) // end tcp socket 2 test


}) // end describe