/*
* Formats a number with comma separators.
 formatNumber(1234567) will return '1,234,567'
 formatNumber(1234567.89) will return '1,234,567.89'
*/
export const formatNumber = (num: number | string) => {
  if (!num)
    return num
  const parts = num.toString().split('.')
  parts[0] = parts[0].replace(/\B(?=(\d{3})+(?!\d))/g, ',')
  return parts.join('.')
}

export const formatFileSize = (num: number) => {
  if (!num)
    return num
  const units = ['', 'K', 'M', 'G', 'T', 'P']
  let index = 0
  while (num >= 1024 && index < units.length) {
    num = num / 1024
    index++
  }
  return `${num.toFixed(2)}${units[index]}B`
}

export const formatTime = (num: number) => {
  if (!num)
    return num
  const units = ['sec', 'min', 'h']
  let index = 0
  while (num >= 60 && index < units.length) {
    num = num / 60
    index++
  }
  return `${num.toFixed(2)} ${units[index]}`
}

export const downloadFile = ({ data, fileName }: { data: Blob; fileName: string }) => {
  const url = window.URL.createObjectURL(data)
  const a = document.createElement('a')
  a.href = url
  a.download = fileName
  document.body.appendChild(a)
  a.click()
  a.remove()
  window.URL.revokeObjectURL(url)
}