'use strict'

const { resolveVhdAlias } = require('./aliases')
const { VhdDirectory } = require('./Vhd/VhdDirectory.js')
const { VhdFile } = require('./Vhd/VhdFile.js')

exports.openVhd = async function openVhd(handler, path, opts) {
  const resolved = await resolveVhdAlias(handler, path)

  // VHD files can't be encrypted since we can't modify part of a file during merge
  //
  // Skip trying to open it if the remote is encrypted
  if (!handler.isEncrypted) {
    try {
      return await VhdFile.open(handler, resolved, opts)
    } catch (e) {
      if (e.code !== 'EISDIR') {
        throw e
      }
    }
  }

  return await VhdDirectory.open(handler, resolved, opts)
}