#
#  Copyright (c) 2013 Helmut Merz helmutm@cy55.de
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#

"""
Base class(es) for track/record managers.
"""

from zope.app.security.interfaces import IUnauthenticatedPrincipal
from zope.cachedescriptors.property import Lazy

from cybertools.meta.interfaces import IOptions
from loops.organize.party import getPersonForUser
from loops.organize.util import getPrincipalForUserId
from loops.security.common import getCurrentPrincipal
from loops import util


class BaseRecordManager(object):

    context = None
    valid = True
    storageName = None

    @Lazy
    def options(self):
        #return IOptions(self.context)
        return IOptions(self.loopsRoot)

    @Lazy
    def loopsRoot(self):
        return self.context.getLoopsRoot()

    @Lazy
    def uid(self):
        return util.getUidForObject(self.context)

    @Lazy
    def storage(self):
        if self.context is None:
            return None
        records = self.loopsRoot.getRecordManager()
        if records is not None:
            return records.get(self.storageName)
        return None

    @Lazy
    def personId(self):
        return self.getPersonId()

    def getPersonId(self, userId=None):
        if userId is None:
            principal = getCurrentPrincipal()
        else:
            principal = getPrincipalForUserId(userId, context=self.context)
        if principal is not None:
            if IUnauthenticatedPrincipal.providedBy(principal):
                return None
            person = getPersonForUser(self.context, principal=principal)
            if person is None:
                return principal.id
            return util.getUidForObject(person)
        return None