import React, { Component } from 'react'

import { ZOOM_STEPS } from 'app/constants'
import { timestamp } from 'app/utils'

const Cursor = ({ timeline, annotation }) => {
  const { start_ts, zoom, cursor_ts, duration } = timeline
  const ts = annotation.start_ts || cursor_ts
  const secondsPerPixel = ZOOM_STEPS[zoom] * 0.1
  const y = (ts - start_ts) / secondsPerPixel
  return (
    <div
      className='cursor'
      style={{
        top: y,
      }}
    >
      <div className='line' />
      <div className='tickLabel'>
        {timestamp(ts, 1)}
      </div>
    </div>
  )
}

export default Cursor