# -*- coding: utf-8 -*-
#  This software and supporting documentation are distributed by
#      Institut Federatif de Recherche 49
#      CEA/NeuroSpin, Batiment 145,
#      91191 Gif-sur-Yvette cedex
#      France
#
# This software is governed by the CeCILL license version 2 under
# French law and abiding by the rules of distribution of free software.
# You can  use, modify and/or redistribute the software under the 
# terms of the CeCILL license version 2 as circulated by CEA, CNRS
# and INRIA at the following URL "http://www.cecill.info". 
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from brainvisa.processes import *
from brainvisa.data import neuroHierarchy, neuroDiskItems
from brainvisa.data.databaseCheck import BVChecker_3_1
from brainvisa.data.qtgui.databaseCheckGUI import CheckFilesWidget
import brainvisa.tools.aimsGlobals as shfjGlobals
import sys


name = 'Check database'
userLevel = 0

signature = Signature( 
  'database', Choice()
 )

def initialization(self):
  databases=[(dbs.directory, neuroHierarchy.databases.database(dbs.directory)) for dbs in neuroConfig.dataPath if not dbs.builtin]
  self.signature['database'].setChoices(*databases)
  if databases:
    self.database=databases[0][1]
  else:
    self.database=None
  
def execution( self, context ):
  """
  """
  res=None
  checker=BVChecker_3_1(self.database, context)
  checker.findActions()
  dialogRes=mainThreadActions().call(show, checker)
  if (dialogRes==1):
    context.write("run actions")
    try:
      checker.process(debug=True)
    except Exception, e:
      context.error("Errors during conversion : "+str(e))
  elif dialogRes==2:
    res=checker
  else:
    context.write("Cancelled")
  return res
  
def show(checker):
  """
  Opens a dialog that presents suggested actions to the user. 
  @returns : True if the user choose to execute actions immediatly, false if he decided to run it later.
  """
  widget=CheckFilesWidget(checker)
  
  if sys.modules.has_key( 'PyQt4' ):
    result=widget.exec_()
  else:
    result=widget.exec_loop()

  return result # convert immediatly