import axios from 'axios'

export function formatBytes(a: number, b: number) {
  if (a === 0) return '0 Bytes'
  const c = 1024
  const d = b || 2
  const e = ['Bytes', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']
  const f = Math.floor(Math.log(a) / Math.log(c))
  return parseFloat((a / Math.pow(c, f)).toFixed(d)) + ' ' + e[f]
}

export async function addToIpfs(
  files: File[],
  setFileSizeReceived: (size: string) => void,
  ipfs: any
) {
  const file = [...files][0]
  const fileDetails = { path: file.name, content: file }

  const response = await ipfs.add(fileDetails, {
    wrapWithDirectory: true,
    progress: (length: number) => setFileSizeReceived(formatBytes(length, 0))
  })

  // CID of wrapping directory is returned last
  const cid = `${response[response.length - 1].hash}/${file.name}`
  return cid
}

export async function pingUrl(url: string) {
  try {
    const response = await axios(url, { timeout: 5000 })
    if (!response || response.status !== 200) return false
    return true
  } catch (error) {
    console.error(error.message)
    return false
  }
}

export function parseHTML(str: string) {
  const tmp = document.implementation.createHTMLDocument()
  tmp.body.innerHTML = str
  return tmp.body.children
}