import { readFile as read } from 'fs-read-data'
import onDeath from  'ondeath'


import Bus from  '../src/bus.js'

let options = {}

  ;
(async () => {

  options = await read('./examples/bus.yaml')

  options.id = options.id ||'i2c-bus'

  // console.log('----------------switches start options--------\n',options,'\n---------------------------------')
  // console.log('----------------switches interrupt options--------\n',options.interrupt,'\n---------------------------------')

  let i2cbus  = new Bus(options)

  if ((process.env.UCI_ENV ||'').includes('dev')) {
    i2cbus.on('log',ev => {
      switch (ev.level) {
      // case 'warning':
      // case 'error':
      // case 'testing':
      case 'ready':
      case 'state':
      case 'i2c':
      case 'fatal':
      // case 'info':
        console.log(ev.level.toUpperCase(),'\n',ev)
        break
      }
    })

    process.once('SIGUSR2', async () => {
      shutdown.call(i2cbus)
      process.kill(process.pid, 'SIGUSR2')
    })

  } // dev


  onDeath( async () => {
    console.log('\nThe I2C Bus, \nHe\'s dead Jim')
    shutdown.call(i2cbus)
    console.log('shutdown done')
    process.exit()
  })


  console.log('before init')

  await i2cbus.init()

  console.log('after init',i2cbus.ready.observers,i2cbus.ready.state)

  i2cbus.ready.all.subscribe(
    (ready) => {
      if (!ready) {
        console.log(options.name, 'YIKES!  some observer is not reporting ready')
        let failed = i2cbus.ready.state.filter(obs=> obs[1]===false).map(obs=>[obs[0],i2cbus.ready.getObserverDetails(obs)])
        console.log('those that have failed\n',failed)
      } else {
        console.log(options.name, ': This I2C BUS is ONLINE!!!!')
        console.log(i2cbus.ready.state)
      }
    })

})().catch(err => {
  console.log('FATAL: UNABLE TO START IC2BUS - KILLING FOR OS RESTART !\n',err, options)
  process.exitCode = 1
  process.kill(process.pid, 'SIGINT')
})


async function shutdown (){
  let names = Object.keys(this.getSocket())
  console.log(names)
  for (let name of names) {
    console.log(name)
    console.log(await this.removeSocket(name))
    console.log('after remove', name)
  }
  this.removeAllListeners()
}