import { getFileIcon } from './fileIcons'

export const getPreviewType = (document) => {
  if (!document) { return null }
  const mime = (document.mimeType || '').toLowerCase()
  const path = document.path || ''

  const check = prefix => mime.startsWith(prefix) || path.startsWith(`data:${prefix}`)

  if (check('image/')) { return 'image' }
  if (mime === 'application/pdf' || path.startsWith('data:application/pdf')) { return 'pdf' }
  if (check('audio/')) { return 'audio' }
  if (check('video/')) { return 'video' }
  if (check('text/') || mime.includes('json') || mime.includes('xml') || path.startsWith('data:application/json')) { return 'text' }
  return null
}

export const canPreviewDocument = (document = {}) => !!getPreviewType(document)

export const isImageDocument = (document = {}) => getPreviewType(document) === 'image'

export const describeDocument = (document) => {
  if (!document) { return '' }
  const name = document.filename || document.name || ''
  const icon = getFileIcon({ name, mime: document.mimeType })
  return icon.label
}