# copyright 2003-2012 LOGILAB S.A. (Paris, FRANCE), all rights reserved.
# contact http://www.logilab.fr/ -- mailto:contact@logilab.fr
#
# This file is part of CubicWeb.
#
# CubicWeb is free software: you can redistribute it and/or modify it under the
# terms of the GNU Lesser General Public License as published by the Free
# Software Foundation, either version 2.1 of the License, or (at your option)
# any later version.
#
# CubicWeb 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 Lesser General Public License for more
# details.
#
# You should have received a copy of the GNU Lesser General Public License along
# with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.

from cubicweb.devtools.testlib import CubicWebTC
from cubicweb.server.session import HOOKS_ALLOW_ALL, HOOKS_DENY_ALL, Connection

class InternalSessionTC(CubicWebTC):
    def test_dbapi_query(self):
        session = self.repo.internal_session()
        self.assertFalse(session.running_dbapi_query)
        session.close()

    def test_integrity_hooks(self):
        with self.repo.internal_session() as session:
            self.assertEqual(HOOKS_ALLOW_ALL, session.hooks_mode)
            self.assertEqual(set(('integrity',)), session.disabled_hook_categories)
            self.assertEqual(set(), session.enabled_hook_categories)
            session.commit()
            self.assertEqual(HOOKS_ALLOW_ALL, session.hooks_mode)
            self.assertEqual(set(('integrity',)), session.disabled_hook_categories)
            self.assertEqual(set(), session.enabled_hook_categories)

class SessionTC(CubicWebTC):

    def test_hooks_control(self):
        session = self.session
        # this test check the "old" behavior of session with automatic connection management
        # close the default cnx, we do nto want it to interfer with the test
        self.cnx.close()
        # open a dedicated one
        session.set_cnx('Some-random-cnx-unrelated-to-the-default-one')
        # go test go
        self.assertEqual(HOOKS_ALLOW_ALL, session.hooks_mode)
        self.assertEqual(set(), session.disabled_hook_categories)
        self.assertEqual(set(), session.enabled_hook_categories)
        self.assertEqual(1, len(session._cnxs))
        with session.deny_all_hooks_but('metadata'):
            self.assertEqual(HOOKS_DENY_ALL, session.hooks_mode)
            self.assertEqual(set(), session.disabled_hook_categories)
            self.assertEqual(set(('metadata',)), session.enabled_hook_categories)
            session.commit()
            self.assertEqual(HOOKS_DENY_ALL, session.hooks_mode)
            self.assertEqual(set(), session.disabled_hook_categories)
            self.assertEqual(set(('metadata',)), session.enabled_hook_categories)
            session.rollback()
            self.assertEqual(HOOKS_DENY_ALL, session.hooks_mode)
            self.assertEqual(set(), session.disabled_hook_categories)
            self.assertEqual(set(('metadata',)), session.enabled_hook_categories)
            with session.allow_all_hooks_but('integrity'):
                self.assertEqual(HOOKS_ALLOW_ALL, session.hooks_mode)
                self.assertEqual(set(('integrity',)), session.disabled_hook_categories)
                self.assertEqual(set(('metadata',)), session.enabled_hook_categories) # not changed in such case
            self.assertEqual(HOOKS_DENY_ALL, session.hooks_mode)
            self.assertEqual(set(), session.disabled_hook_categories)
            self.assertEqual(set(('metadata',)), session.enabled_hook_categories)
        # leaving context manager with no transaction running should reset the
        # transaction local storage (and associated cnxset)
        self.assertEqual({}, session._cnxs)
        self.assertEqual(None, session.cnxset)
        self.assertEqual(HOOKS_ALLOW_ALL, session.hooks_mode, session.HOOKS_ALLOW_ALL)
        self.assertEqual(set(), session.disabled_hook_categories)
        self.assertEqual(set(), session.enabled_hook_categories)

    def test_explicite_connection(self):
        with self.session.new_cnx() as cnx:
            rset = cnx.execute('Any X LIMIT 1 WHERE X is CWUser')
            self.assertEqual(1, len(rset))
            user = rset.get_entity(0, 0)
            user.cw_delete()
            cnx.rollback()
            new_user = cnx.entity_from_eid(user.eid)
            self.assertIsNotNone(new_user.login)
        self.assertFalse(cnx._open)

    def test_internal_cnx(self):
        with self.repo.internal_cnx() as cnx:
            rset = cnx.execute('Any X LIMIT 1 WHERE X is CWUser')
            self.assertEqual(1, len(rset))
            user = rset.get_entity(0, 0)
            user.cw_delete()
            cnx.rollback()
            new_user = cnx.entity_from_eid(user.eid)
            self.assertIsNotNone(new_user.login)
        self.assertFalse(cnx._open)



if __name__ == '__main__':
    from logilab.common.testlib import unittest_main
    unittest_main()