const {
  AsyncTask,
  CronJob,
  SimpleIntervalJob,
  ToadScheduler
} = require('toad-scheduler')

const delay = (timeout = 2000) => new Promise(resolve => {
  setTimeout(() => resolve(), timeout)
})

const cronTaskFn = () => {
  const now = new Date().toISOString()
  // const now = Date.now()

  console.error(new Date().toISOString(), 'CronTask Start', now)

  return delay(17000)
    .then(() => console.error(new Date().toISOString(), 'CronTask End', now))
}

const simpleTaskFn = () => {
  const now = new Date().toISOString()
  // const now = Date.now()

  console.error(new Date().toISOString(), ': SimpleTask Start', now)

  return delay(17000)
    .then(() => console.error(new Date().toISOString(), 'SimpleTask End', now))
}

const run = () => {
  try {
    const scheduler = new ToadScheduler()

    // Scheduler-Setup
    const cronSchedule = { cronExpression: '*/10 * * * * *' }
    const cronTask = new AsyncTask('cron-task', () => cronTaskFn())
    const cronOpts = { id: 'CRON_TASK_ID', preventOverrun: true }

    console.debug('Scheduler schedule and opts', cronSchedule, cronOpts)

    const cronJob = new CronJob(cronSchedule, cronTask, cronOpts)

    scheduler.addCronJob(cronJob)

    const simpleTask = new AsyncTask('simple-task', () => simpleTaskFn())
    const simpleOpts = { id: 'SIMPLE_TASK_ID', preventOverrun: true }

    console.debug('Scheduler opts', simpleOpts)

    const simpleJob = new SimpleIntervalJob({ seconds: 10 }, simpleTask, simpleOpts)

    scheduler.addSimpleIntervalJob(simpleJob)
  } catch (err) {
    console.error(err)

    process.exit(1)
  }

  process.on('SIGINT', () => process.exit(0))
}

run()