import javax.mail.Folder;
import javax.mail.Session;

class Pop3Client
{
  def host,user,pass,port,proto
  def store
  def inbox

  def config =
  { host, user, pass, ssl ->
    this.host = host
    this.user = user
    this.pass = pass
    port = ssl ? 995 : 110
    proto = ssl ? "pop3s" : "pop3"
  }

  def connect()
  {
    def props = new Properties()
    props.setProperty('mail.debug', 'false')
    def session = Session.getDefaultInstance(props)
    session.debug = false
    store = session.getStore(proto)
    store.connect(host, port , user, pass)
    inbox = store.getFolder('inbox')
    inbox.open(Folder.READ_WRITE)
  }

  def close =
  { del ->
    try{inbox.close(del)}catch(Exception e1){}
    try{store.close()}catch(Exception  e1){}
  }

  def count = { inbox.messageCount }

  def msg = {id -> return inbox.getMessage(id)}

  def pop = {offset, len -> inbox.getMessages(offset,offset+len)}

  def eachMsg = { close -> eachMsgWithIndex{msg, i-> close(msg)}}

  def eachMsgWithIndex =
  { close ->
    def c = count()
    for(int i=1; i<=c; i++) close(msg(i),i)
  }
}