import json

CURRENT_REGION = ""
CURRENT_INDEX = -1

if get_exec_pars().debug:
    print "Setting debug parameters"
    NAME = None
    FILE = None
    R1 = """{ 
      "scienta.elementSet" : "HiPPHAXPES", 
      "scienta.lensMode" : "T_HiPPHAXPES", 
      "scienta.lowEnergy" : 387.0, 
      "scienta.acquisitionMode" : "Swept", 
      "scienta.slices" : 1.0, 
      "scienta.stepSize" : 0.25, 
      "scienta.passEnergy" : 2, 
      "scienta.detectorMode" : "ADC", 
      "scienta.energyMode" : "Kinetic", 
      "scienta.centerEnergy" : 397.0, 
      "scienta.stepTime" : 1.0, 
      "scienta.highEnergy" : 407.0, 
      "scienta.iterations" : 1.0 
      } """
    
    REGIONS = [["R1", R1]]

if FILE:
    FILE = get_context().setup.expandPath("{home}/parameters/" + FILE)    
    with open(FILE) as json_file:  
        cfg = json.load(json_file)
    NAME , REGIONS= cfg[0][0][0], cfg[1]
    print "FILE: ", FILE
print "NAME: ", NAME
#print "REGIONS: ", REGIONS
   
    
set_device_alias(scienta.getSpectrum(), "spectrum")
set_device_alias(scienta.getDataMatrix(), "image")
set_device_alias(scienta.stats[0], "sum")

sensors=[i0, scienta.stats[0], scienta.getSpectrum()]


def apply_pars(pars):
      scienta.elementSet = scienta.elementSet.valueOf(pars["scienta.elementSet"])
      scienta.lensMode = scienta.lensMode.valueOf(pars["scienta.lensMode"])
      scienta.detectorMode = scienta.detectorMode.valueOf(pars["scienta.detectorMode"])
      scienta.energyMode = scienta.energyMode.valueOf(pars["scienta.energyMode"])
      scienta.acquisitionMode = scienta.acquisitionMode.valueOf(pars["scienta.acquisitionMode"])
      scienta.passEnergy = pars["scienta.passEnergy"]      
      scienta.getLowEnergy().writeAsync(pars["scienta.centerEnergy"])
      scienta.getCenterEnergy().writeAsync(pars["scienta.passEnergy"])     
      scienta.getHighEnergy().writeAsync(pars["scienta.highEnergy"])    
      scienta.getSlices().writeAsync(pars["scienta.slices"]) 
      scienta.getStepSize().writeAsync(pars["scienta.stepSize"])     
      scienta.getStepTime().writeAsync(pars["scienta.stepTime"])
      scienta.setIterations(int(pars["scienta.iterations"]))
      


def before_read(position, scan):
    #trigger_scienta()
    pass


#dummy_trigger_scienta()


try:
    for r in REGIONS:
        name=r[0]
        pars = json.loads(r[1])
        CURRENT_REGION = name
        CURRENT_INDEX = CURRENT_INDEX+1
        print "Region: ", name
        print "Pars: ", pars
        apply_pars(pars)
        time.sleep(5.0)
        
    #tscan(sensors, 1, 0.001, before_read=before_read, after_read=after_readout, name = NAME)
finally:
    scienta.zeroSupplies()