# ------------------------------------------------------------------------------
from appy.gen.plone25.wrappers import AbstractWrapper

# ------------------------------------------------------------------------------
_PY = 'Please specify a file corresponding to a Python interpreter ' \
      '(ie "/usr/bin/python").'
FILE_NOT_FOUND = 'Path "%s" was not found.'
VALUE_NOT_FILE = 'Path "%s" is not a file. ' + _PY
NO_PYTHON = "Name '%s' does not starts with 'python'. " + _PY
NOT_UNO_ENABLED_PYTHON = '"%s" is not a UNO-enabled Python interpreter. ' \
                         'To check if a Python interpreter is UNO-enabled, ' \
                         'launch it and type "import uno". If you have no ' \
                         'ImportError exception it is ok.'

# ------------------------------------------------------------------------------
class ToolWrapper(AbstractWrapper):
    def validPythonWithUno(self, value):
        '''This method represents the validator for field unoEnabledPython.'''
        if value:
            if not os.path.exists(value):
                return FILE_NOT_FOUND % value
            if not os.path.isfile(value):
                return VALUE_NOT_FILE % value
            if not os.path.basename(value).startswith('python'):
                return NO_PYTHON % value
            if os.system('%s -c "import uno"' % value):
                return NOT_UNO_ENABLED_PYTHON % value
        return None

    def getInitiator(self):
        '''Retrieves the object that triggered the creation of the object
           being currently created (if any).'''
        res = None
        rq = self.o.REQUEST
        if rq.get('nav', ''):
            initiatorUid = rq['nav'].split('.')[1]
            res = self.o.uid_catalog(UID=initiatorUid)[0].getObject().appy()
        return res

    def getObject(self, uid):
        '''Allow to retrieve an object from its unique identifier p_uid.'''
        return self.o.getObject(uid, appy=True)

    def getDiskFolder(self):
        '''Returns the disk folder where the Appy application is stored.'''
        return self.o.getProductConfig().diskFolder
# ------------------------------------------------------------------------------