dry_run = True
do_elog = True

if get_exec_pars().source == CommandSource.ui:
    phaseOffset = rph_ref
    plt   = None
    do_elog = False
else:
    phaseOffset = args[0]
    plt   = args[1]

print "Setting phase offset:  ", phaseOffset

phaseOffset = -phaseOffset

if not dry_run:
    caput('SINEG01-RSYS:SET-VSUM-PHASE-OFFSET-BASE', phaseOffset)
    caput('SINEG01-RSYS:CMD-LOAD-CALIB-BEAM', 1)


if do_elog:
        log_msg =           "Phase offset:        %0.1f"   % bph_ref   + "\n"
        attachments = []
        if plt is not None:
            sleep(0.1) #Give some time to plot to be finished - it is not sync  with acquisition
            file_name = os.path.abspath(get_context().setup.getContextPath() + "/SchottkyScanSetPlot.png")
            plt.saveSnapshot(file_name , "png")        
            attachments = [file_name,]
        elog("SchottkyScanSet", log_msg, attachments)

show_message("Success setting phase reference")