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#      Institut Federatif de Recherche 49
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from brainvisa.processes import *
from brainvisa import shelltools
import shfjGlobals




name = 'Resampling'
userLevel = 2

signature = Signature( 
  'image_input', ReadDiskItem( '4D Volume', shfjGlobals.aimsVolumeFormats ),
  'image_output', WriteDiskItem( '4D Volume', shfjGlobals.anatomistVolumeFormats ),
  'template', ReadDiskItem( '4D Volume', shfjGlobals.aimsVolumeFormats ),
  'motion', ReadDiskItem ('Transformation matrix', 'Transformation matrix'),
  'dimX', Integer(),
  'dimY', Integer(),
  'dimZ', Integer(),
  'sizeX', Float(),
  'sizeY', Float(),
  'sizeZ', Float(),
 )
  

def initialization( self ):
  self.linkParameters( 'image_output', 'image_input' )
  self.setOptional('dimX', 'dimY', 'dimZ', 'sizeX', 'sizeY', 'sizeZ', 'motion', 'template')
  

def execution( self, context ):
  
  command = [ 'AimsResample', '-i', self.image_input, '-o', self.image_output ]
  
  if self.template is not None :
    template = str(self.template)
    command += [ '-r', template]


  if (self.dimX is None) and (self.dimY is None) and (self.dimZ is None) and (self.sizeX is None) and (self.sizeY is None) and (self.sizeZ is None) and (self.motion is None) :
    context.write('One field is mandatory (dimX or dimY or dimZ or SizeX or SizeY or SizeZ or motion)')
  else :  
    if self.dimX is not None :
      command += [ '--dx', self.dimX]

    if self.dimY is not None :
      command += [ '--dy', self.dimY]

    if self.dimZ is not None :
      command += [ '--dz', self.dimZ]

    if self.sizeX is not None :
      command += [ '--sx', self.sizeX]

    if self.sizeY is not None :
      command += [ '--sy', self.sizeY]

    if self.sizeZ is not None :
      command += [ '--sz', self.sizeZ]

    if self.motion is not None :
      command += [ '-m', self.motion]


    context.system( *command )