"""
Focusing mirror Rx scan
to center the beam on the monochromator grating
Rx = -20...+20
set the front end to 0.5 x 0.5, exit slit to 25, photon energy to 1500
"""

import math

# adjust the following parameters
STARTPOS = (-5.0)
ENDPOS = (+5.0)
STEPS = 0.01
LATENCY = 1.0
DWELL = 1.0
ENDSCAN = False

MOTORS = [FocusXRot]
SENSORS = [SampleCurrent, RefCurrent, MachineCurrent, OpticsCameraCentroidX, OpticsCameraSigmaX]
RELATIVE = False

value = DWELL * 10.0
SampleCurrentAveraging.write(value)
RefCurrentAveraging.write(value)

SampleCurrentGain.write("L, 10^9")
RefCurrentGain.write("L, 10^9")

# front end size includes offset!
FrontendHSize.write(1.0)
FrontendVSize.write(0.9)
ExitSlit.write(25.0)

adjust_sensors()
set_adc_averaging()

def trig():
    wait_beam()
    caput("X03DA-OP-10ADC:TRG.PROC", 1)
    
try:
    lscan(MOTORS, SENSORS, STARTPOS, ENDPOS, STEPS, LATENCY, RELATIVE, before_read=trig, after_read = after_readout)
finally:
    if ENDSCAN:
        after_scan()