const path = require('path')
const config = require(path.join(__dirname, 'config.js'))
const Liquidsoap = require(path.join(__dirname, 'liquidsoap.js'))
const Scheduler = require(path.join(__dirname, 'schedule.js'))
const rl = require(path.join(__dirname, 'console.js')).rl

let liq = new Liquidsoap()
if (process.env.LIQUIDSOAP_AUTOSTART !== 'false') liq.start()

let scheduler = new Scheduler(config.calendar)
scheduler.startTimers()

scheduler.on('event-start', (event) => liq.queue(event.descriptor))

require(path.join(__dirname, 'api.js'))(liq, scheduler)

// User input handler
rl.on('line', function (line) {
  let argv = line.split(' ')

  switch (argv[0]) {
    case 'stop':
      console.log('Stopping liquidsoap..')
      liq.stop()
      break
    case 'start':
      if (liq.running) return
      console.log('Starting liquidsoap..')
      liq.start()
      break
    case 'restart':
      console.log('Restarting liquidsoap..')
      liq.stop()
      setTimeout(() => liq.start(), 4000)
      break
    case 'queue':
      let qline = line.substring(6)
      liq.queue(qline)
      break
    case 'skip':
      liq.skip()
      break
    case 'status':
      console.log(liq.running ? 'Liquidsoap is running' : 'Liquidsoap is stopped')
      break
    case 'events':
      console.log('Refreshing scheduler..')
      Promise.all([
        scheduler.calendarFetch(),
        scheduler.update()
      ]).catch((e) => console.error('Calendar fetch failed!', e.stack))
      break
    case 'reload':
      console.log('Reloading configuration..')
      config.read().then(
        () => {
          console.log('Configuration reloaded successfully.')

          // Restart scheduler
          scheduler.stopTimers()
          scheduler.startTimers()
        },
        (e) => console.error('Configuration reload failed:', e.stack)
      )
      break
    default:
      console.log('Unknown command.')
  }

  rl.prompt(true)
})

rl.on('close', function () {
  scheduler.stopTimers()

  if (liq.running) {
    liq.stop()
    console.log('Waiting for liquidsoap to exit')
    setTimeout(function () {
      if (liq.running) {
        console.warn('Liquidsoap did not exit in time, forcing..')
        liq.proc.kill(9)
      }

      process.stdout.write('\n')
      process.exit(0)
    }, 1000)
    return
  }

  console.log('Bye bye!')
  process.stdout.write('\n')
  process.exit(0)
})