"""
Focusing mirror Ry scan

set scan parameters below, move the mirror to the center position.
set analyser parameters separately!

changes
-------

2022-06-22 implement fly scan: not supported by positioner!
"""

import math
set_exec_pars(compression=True)

# adjust the following parameters
DISTANCE = 0.2
STEPS = 100
LATENCY = 0.5
ENDSCAN = False

MOTORS = [FocusYRot]
#SENSORS = [SampleCurrent, RefCurrent, MachineCurrent, OpticsCameraCentroidX, OpticsCameraSigmaX, opps1img.getDataMatrix()]
SENSORS = [SampleCurrent, RefCurrent, MachineCurrent]
SENSORS = (Counts, SampleCurrent, RefCurrent, MachineCurrent, Scienta.dataMatrix, EnergyDistribution, AngleDistribution)

STARTPOS = (-DISTANCE / 2.0)
ENDPOS = (DISTANCE / 2.0)
RELATIVE = True
FLY_SCAN = False  # fly scan not supported by positioner

adjust_sensors()
set_adc_averaging()

try:
    if FLY_SCAN:        
        # time per scienta acquisition in seconds
        trig_scienta()
        time1 = time.time()
        before_readout()
        time.sleep(0.2)
        time2 = time.time()
        scienta_time = (time2 - time1) + 1.
        print "step time: ", scienta_time        
        
        if isinstance(STEPS,int):
            STEPS = DISTANCE / STEPS
            
        SPEED = STEPS / scienta_time
        fly_time = (RANGE[1] - RANGE[0]) / SPEED
        STEPS = int(fly_time / scienta_time) + 1
                                          
        print "speed: ", SPEED
        print "scan time: ", fly_time            
        cscan(MOTORS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, fly_time, RELATIVE, before_read=before_readout, after_read = after_readout, check_positions = False)
    else:
        lscan(MOTORS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, RELATIVE, before_read=before_readout, after_read = after_readout)
finally:
    if ENDSCAN:
        after_scan()