#!/usr/bin/python
import cups

# Simple demonstration of cups module

def callback (prompt):
    print ("Password is required for this operation")
    password = raw_input (prompt)
    return password

def test_cups_module ():
    cups.setUser ("root")
    cups.setPasswordCB (callback)
    try:
        conn = cups.Connection ()
    except RuntimeError as er:
        print ("Couldn't get a connection to local CUPS server - {}"
               " - is CUPS running?".format(er))
        return

    # get destinations - temporary and permanent printers
    dests = list(conn.getDests ().keys ())

    if len(dests) == 0:
        print ("No printers found, exiting.")
        return

    # get permanent printers
    printers = list(conn.getPrinters ().keys ())

    if 0:
        print ("Getting cupsd.conf")
        file ("cupsd.conf", "w")
        conn.getFile ("/admin/conf/cupsd.conf", "cupsd.conf")
        print ("Putting cupsd.conf")
        conn.putFile ("/admin/conf/cupsd.conf", "cupsd.conf")

    assert len(printers) > 0

    print ("Getting PPD for %s" % printers[len (printers) - 1])
    f = conn.getPPD (printers[len (printers) - 1])
    ppd = cups.PPD (f)
    ppd.markDefaults ()
    print (ppd.conflicts ())
    groups = ppd.optionGroups
    for group in groups:
        for opt in group.options:
            print (list (map (lambda x: x["text"], opt.choices)))

test_cups_module ()