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

export function reply (packet) {
  let req = packet._header.request
  console.log(`response from relays for ${req.cmd}:`,req.args, `was ${packet.response}`)
}

export async function test (address) {
  let packet
  console.log('=============sending packets for i2c mcp23008 relay device ============')
  console.log('setting ioddir')
  packet = {cmd:'write', args:{address:address,cmd: 0, byte:0} }
  console.dir(packet)
  await this.send(packet)
  packet = {cmd:'read', args:{address:address ,cmd:0} }
  console.dir(packet)
  await this.send(packet)
  console.log('========= turn on each relay ============')
  let byte = 0
  for (let i = 0; i < 8 ; i++) {
    byte += Math.pow(2,i)
    packet = {cmd:'write', args:{address:address,cmd: 9, byte:byte} }
    console.log(`==== relay ${i+1} on with byte: ${byte} ===`)
    console.dir(packet)
    await this.send(packet)
    packet = {cmd:'read', args:{address:address ,cmd:9} }
    console.dir(packet)
    await this.send(packet)
    await delay(1000)
  }
  console.log('========= done each relay, clear (off) this ============')
  packet = {cmd:'write', args:{address:address,cmd: 9, byte:0} }
  console.dir(packet)
  await this.send(packet)
  packet = {cmd:'read', args:{address:address ,cmd:9} }
  console.dir(packet)
  await this.send(packet)
  await delay(1000)
}