keystore.getValuesMap(internals.BLACKKNIGHT_PROCESS_DATES, defaultValues: defaults)
  .then (processDates) ->
    # establish ftp connection to blackknight
    externalAccounts.getAccountInfo('blackknight')
    .then (accountInfo) ->
      ftp.connect
        host: accountInfo.url
        user: accountInfo.username
        password: accountInfo.password
        autoReconnect: true
      .catch (err) ->
        if err.level == 'client-authentication'
          throw new SoftFail('FTP authentication error')
        else
          throw err

    .then () ->

      # REFRESH paths/files for tax, deed, and mortgage
      refreshPromise = internals.findNewFolders(ftp, internals.REFRESH, processDates)
      .then (newFolders) ->
        # console.log "newFolders:\n#{JSON.stringify(newFolders,null,2)}"
        drops = Object.keys(newFolders).sort()
        # console.log "drops:\n#{JSON.stringify(drops,null,2)}"
        refresh = newFolders[drops[(drops.length - 1)]]
        # console.log "refresh:\n#{JSON.stringify(refresh,null,2)}"
        return [refresh.tax.path, refresh.deed.path, refresh.mortgage.path]

      # UPDATE paths/files for tax, deed, and mortgage
      updatePromise = internals.findNewFolders(ftp, internals.UPDATE, processDates)
      .then (newFolders) ->
        # console.log "newFolders:\n#{JSON.stringify(newFolders,null,2)}"
        drops = Object.keys(newFolders).sort()
        # console.log "drops:\n#{JSON.stringify(drops,null,2)}"
        update = newFolders[drops[(drops.length - 1)]]
        # console.log "update:\n#{JSON.stringify(update,null,2)}"
        return [update.tax.path, update.deed.path, update.mortgage.path]

      Promise.join(refreshPromise, updatePromise)
      .then ([refreshPaths, updatePaths]) ->
        return refreshPaths.concat updatePaths


    .then (paths) ->