fs = require 'fs'
Promise = require "bluebird"
externalAccounts = require './backend/services/service.externalAccounts'
PromiseSftp = require 'promise-sftp'


# globalz......................................................................
ftp = new PromiseSftp()
#
# expected: 450762 bytes
# recieved: 450756 (thus corrupt and unable to gunzip)
# discrepency amount seems to scale with file size
#
source = '/Managed_Refresh/Deed20160824/12043_Deed_Refresh_20160824.txt.gz'
target = '/tmp/12043_Deed_demo.txt.gz'


# ready the stuff..............................................................
externalAccounts.getAccountInfo('blackknight')
.then (accountInfo) ->
  console.log "accountInfo:\n#{JSON.stringify(accountInfo,null,2)}"
  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 () ->


# do the stuff.................................................................
  ftp.get(source)
  .then (ftpStream) -> new Promise (resolve, reject) ->

    ftpStream.on 'error', reject
    ftpStream.on 'end', resolve

    # ftpStream.on 'data', (chunk) ->
    #   console.log "Received #{chunk.length} bytes of data."

    # ftpStream.on 'end', (detail) ->
    #   console.log "detail:\n#{JSON.stringify(detail)}"
    #   console.log "reading ended."
    #   resolve(detail)

    ftpStream.pipe(fs.createWriteStream(target))


# did the stuff................................................................
.catch (err) ->
  console.log "Shit shit fire ze missilez..."
  throw new Error(err)

.then () ->
  console.log "Completed."
  ftp.logout()
  process.exit(0)