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

# ------------------------------------------------------------------------------
class GroupWrapper(AbstractWrapper):
    workflow = WorkflowOwner

    def showLogin(self):
        '''When must we show the login field?'''
        if self.o.isTemporary(): return 'edit'
        return ('view', 'result')

    def showGroups(self):
        '''Only the admin can view or edit roles.'''
        return self.user.has_role('Manager')

    def validateLogin(self, login):
        '''Is this p_login valid?'''
        return True

    def getGrantableRoles(self):
        '''Returns the list of roles that the admin can grant to a user.'''
        res = []
        for role in self.o.getProductConfig().grantableRoles:
            res.append( (role, self.translate('role_%s' % role)) )
        return res

    def validate(self, new, errors):
        '''Inter-field validation.'''
        return self._callCustom('validate', new, errors)

    def addUser(self, user):
        '''Adds a p_user to this group.'''
        # Update the Ref field.
        self.link('users', user)

    def removeUser(self, user):
        '''Removes a p_user from this group.'''
        self.unlink('users', user)

    def onEdit(self, created):
        # If the group was created by anon, anon can't stay its Owner.
        if 'anon' in self.o.__ac_local_roles__:
            del self.o.__ac_local_roles__['anon']
        if 'system' in self.o.__ac_local_roles__:
            del self.o.__ac_local_roles__['system']
        return self._callCustom('onEdit', created)
# ------------------------------------------------------------------------------