mount_sample_id = None
mount_sample_detected = None

def mount(segment, puck, sample, force=False, read_dm=False):
    """
    """
    global mount_sample_id, mount_sample_detected
    print "mount: ", segment, puck, sample, force
    start = time.time()

    puck_address = get_puck_address(puck)
    if puck_address is None:
        puck_obj = get_puck_obj_by_id(puck)
        if puck_obj is not None:
            puck_address = puck_obj.name
    if puck_address is not None:
        print "puck address: ", puck_address
        segment = puck_address[:1]
        puck = int(puck_address[1:])        
    #Initial checks
    assert_valid_address(segment, puck, sample)
    assert_puck_detected(segment, puck)
    robot.assert_no_task()
    robot.reset_motion()
    robot.wait_ready()
    robot.assert_cleared()
    #robot.assert_in_known_point()
    hexiposi.assert_homed()

    if smart_magnet.check_mounted(idle_time=0.25, timeout = 1.0) == True:
        raise Exception("Pin detected on gonio")
    
    #location = robot.get_current_point()

    #Enabling
    enable_motion()
    
    set_hexiposi(segment)
    
    if not force:        
        visual_check_hexiposi(segment)           

    if not robot.is_dewar():
        robot.move_dewar()      
            
    robot.get_dewar(segment, puck, sample)
    
    set_setting("mounted_sample_position", get_sample_name(segment, puck, sample))

    if read_dm:
        barcode_reader.start_read(10.0)
        robot.move_scanner()     
        time.sleep(1.0)           
        
    robot.move_gonio()    
    
    if read_dm:
        mount_sample_id = barcode_reader.get_readout()
        print "Datamatrix: " , mount_sample_id
    else:
        mount_sample_id = None

    smart_magnet.set_mount_current()
    try:
        robot.put_gonio()        
        robot.move_dewar() 
        mount_sample_detected = smart_magnet.check_mounted(idle_time=0.25, timeout = 1.0)        
        #TODO: Should do on finally?
        update_samples_info_sample_mount(get_puck_name(segment, puck), sample, mount_sample_detected, mount_sample_id)      
        if mount_sample_detected == False:
            raise Exception("No pin detected on gonio")
        return [mount_sample_detected, mount_sample_id]
    finally:
        smart_magnet.set_default_current()