#!/usr/bin/python

try:
    import autotest.common as common  # pylint: disable=W0611
except ImportError:
    import common  # pylint: disable=W0611
import logging
import unittest

from autotest.client.shared import host_protections
from autotest.database_legacy import database_connection
from autotest.frontend import setup_django_environment  # pylint: disable=W0611
from autotest.frontend import test_utils
from autotest.frontend.afe import models
from autotest.scheduler import monitor_db_cleanup, scheduler_config


class UserCleanupTest(unittest.TestCase, test_utils.FrontendTestMixin):

    def setUp(self):
        logging.basicConfig(level=logging.DEBUG)
        self._frontend_common_setup()
        self._database = (
            database_connection.DatabaseConnection.get_test_database())
        self._database.connect(db_type='django')
        self.cleanup = monitor_db_cleanup.UserCleanup(self._database, 1)

    def tearDown(self):
        self._frontend_common_teardown()

    def test_reverify_dead_hosts(self):
        # unlimited reverifies
        self.god.stub_with(scheduler_config.config,
                           'reverify_max_hosts_at_once', 0)
        for i in (0, 1, 2):
            self.hosts[i].status = models.Host.Status.REPAIR_FAILED
            self.hosts[i].save()

        self.hosts[1].locked = True
        self.hosts[1].save()

        self.hosts[2].protection = host_protections.Protection.DO_NOT_VERIFY
        self.hosts[2].save()

        self.god.stub_with(self.cleanup, '_should_reverify_hosts_now',
                           lambda: True)
        self.cleanup._reverify_dead_hosts()

        tasks = models.SpecialTask.objects.all()
        self.assertEquals(len(tasks), 1)
        self.assertEquals(tasks[0].host.id, 1)
        self.assertEquals(tasks[0].task, models.SpecialTask.Task.VERIFY)

    def test_reverify_dead_hosts_limits(self):
        # limit the number of reverifies
        self.assertTrue(hasattr(scheduler_config.config,
                                'reverify_max_hosts_at_once'))
        self.god.stub_with(scheduler_config.config,
                           'reverify_max_hosts_at_once', 2)
        for i in (0, 1, 2, 3, 4, 5):
            self.hosts[i].status = models.Host.Status.REPAIR_FAILED
            self.hosts[i].save()

        self.hosts[1].locked = True
        self.hosts[1].save()

        self.hosts[2].protection = host_protections.Protection.DO_NOT_VERIFY
        self.hosts[2].save()

        self.god.stub_with(self.cleanup, '_should_reverify_hosts_now',
                           lambda: True)
        self.cleanup._reverify_dead_hosts()

        tasks = models.SpecialTask.objects.all()
        # four hosts need reverifying but our max limit was set to 2
        self.assertEquals(len(tasks), 2)
        self.assertTrue(tasks[0].host.id in (1, 4, 5, 6))
        self.assertTrue(tasks[1].host.id in (1, 4, 5, 6))
        self.assertEquals(tasks[0].task, models.SpecialTask.Task.VERIFY)
        self.assertEquals(tasks[1].task, models.SpecialTask.Task.VERIFY)


if __name__ == '__main__':
    unittest.main()
