"""Smartcard CardRequest.

__author__ = "http://www.gemalto.com"

Copyright 2001-2010 gemalto
Author: Jean-Daniel Aussel, mailto:jean-daniel.aussel@gemalto.com

This file is part of pyscard.

pyscard is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.

pyscard is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with pyscard; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
"""

from smartcard.pcsc.PCSCCardRequest import PCSCCardRequest

class CardRequest:
    """A CardRequest is used for waitForCard() invocations and specifies what
    kind of smart card an application is waited for.
    """

    def __init__( self, newcardonly=False, readers=None, cardType=None, cardServiceClass=None, timeout=1 ):
        """Construct new CardRequest.

        newcardonly:        if True, request a new card
                            default is False, i.e. accepts cards already inserted

        readers:            the list of readers to consider for requesting a card
                            default is to consider all readers

        cardType:           the smartcard.CardType.CardType to wait for; default is
                            smartcard.CardType.AnyCardType, i.e. the request will
                            succeed with any card

        cardServiceClass:   the specific card service class to create and bind to the card
                            default is to create and bind a smartcard.PassThruCardService

        timeout:            the time in seconds we are ready to wait for connecting to the
                            requested card.
                            default is to wait one second
                            to wait forever, set timeout to None
        """
        self.pcsccardrequest=PCSCCardRequest( newcardonly, readers, cardType, cardServiceClass, timeout )

    def getReaders( self ):
        """Returns the list or readers on which to wait for cards."""
        return self.pcsccardrequest.getReaders()

    def waitforcard( self ):
        """Wait for card insertion and returns a card service."""
        return self.pcsccardrequest.waitforcard()

    def waitforcardevent( self ):
        """Wait for card insertion or removal."""
        return self.pcsccardrequest.waitforcardevent()


if __name__ == '__main__':
    """Small sample illustrating the use of CardRequest.py."""

    from smartcard.util import toHexString
    print 'Insert a new card within 10 seconds'
    cr=CardRequest( timeout=10, newcardonly=True )
    cs = cr.waitforcard()
    cs.connection.connect()
    print cs.connection.getReader(), toHexString(cs.connection.getATR())
    cs.connection.disconnect()