from __future__ import division

from dxtbx.format.FormatSMVADSC import FormatSMVADSC

class FormatSMVADSCSN(FormatSMVADSC):
  '''A class for reading SMV format ADSC images, with detector serial number'''

  @staticmethod
  def understand(image_file):

    size, header = FormatSMVADSC.get_smv_header(image_file)

    wanted_header_items = ['DETECTOR_SN', 'DATE']

    for header_item in wanted_header_items:
      if not header_item in header:
        return 0

    return True

  def __init__(self, image_file):
    '''Initialise the image structure from the given file, including a
    proper model of the experiment.'''

    assert(self.understand(image_file))

    FormatSMVADSC.__init__(self, image_file)

    return

  def _start(self):

    from iotbx.detectors.adsc import ADSCImage
    self.detectorbase = ADSCImage(self._image_file)
    self.detectorbase.readHeader()

    FormatSMVADSC._start(self)


if __name__ == '__main__':

  import sys

  for arg in sys.argv[1:]:
    print FormatSMVADSCSN.understand(arg)