# This file is part of Buildbot.  Buildbot 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, version 2.
#
# 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., 51
# Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
# Copyright Buildbot Team Members

import sys
import time
from twisted.trial import unittest
from twisted.internet import defer
from buildbot.schedulers import timed
from buildbot.test.util import scheduler
from buildbot.test.util import config

class NightlyBase(scheduler.SchedulerMixin, unittest.TestCase):
    """detailed getNextBuildTime tests"""

    OBJECTID = 133

    def makeScheduler(self, firstBuildDuration=0, **kwargs):
        return self.attachScheduler(timed.NightlyBase(**kwargs),
                self.OBJECTID)

    @defer.inlineCallbacks
    def do_getNextBuildTime_test(self, sched, *expectations):
        for lastActuated, expected in expectations:
            # convert from tuples to epoch time (in local timezone)
            lastActuated_ep, expected_ep = [
                   time.mktime(t + (0,) * (8 - len(t)) + (-1,))
                   for t in (lastActuated, expected) ]
            got_ep = yield sched.getNextBuildTime(lastActuated_ep)
            self.assertEqual(got_ep, expected_ep,
                "%s -> %s != %s" % (lastActuated, time.localtime(got_ep),
                                    expected))

    def test_getNextBuildTime_hourly(self):
        sched = self.makeScheduler(name='test', builderNames=['test'])
        return self.do_getNextBuildTime_test(sched,
            ((2011, 1, 1,  3,  0,  0), (2011, 1, 1,  4,  0,  0)),
            ((2011, 1, 1,  3, 15,  0), (2011, 1, 1,  4,  0,  0)),
            ((2011, 1, 1,  3, 15,  1), (2011, 1, 1,  4,  0,  0)),
            ((2011, 1, 1,  3, 59,  1), (2011, 1, 1,  4,  0,  0)),
            ((2011, 1, 1,  3, 59, 59), (2011, 1, 1,  4,  0,  0)),
            ((2011, 1, 1, 23, 22, 22), (2011, 1, 2,  0,  0,  0)),
            ((2011, 1, 1, 23, 59,  0), (2011, 1, 2,  0,  0,  0)),
        )

    def test_getNextBuildTime_minutes_single(self):
        # basically the same as .._hourly
        sched = self.makeScheduler(name='test', builderNames=['test'],
                minute=4)
        return self.do_getNextBuildTime_test(sched,
            ((2011, 1, 1,  3,  0,  0), (2011, 1, 1,  3,  4,  0)),
            ((2011, 1, 1,  3, 15,  0), (2011, 1, 1,  4,  4,  0)),
        )

    def test_getNextBuildTime_minutes_multiple(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                minute=[4, 34])
        return self.do_getNextBuildTime_test(sched,
            ((2011, 1, 1,  3,  0,  0), (2011, 1, 1,  3,  4,  0)),
            ((2011, 1, 1,  3, 15,  0), (2011, 1, 1,  3, 34,  0)),
            ((2011, 1, 1,  3, 34,  0), (2011, 1, 1,  4,  4,  0)),
            ((2011, 1, 1,  3, 59,  1), (2011, 1, 1,  4,  4,  0)),
        )

    def test_getNextBuildTime_minutes_star(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                minute='*')
        return self.do_getNextBuildTime_test(sched,
            ((2011, 1, 1,  3, 11, 30), (2011, 1, 1,  3, 12,  0)),
            ((2011, 1, 1,  3, 12,  0), (2011, 1, 1,  3, 13,  0)),
            ((2011, 1, 1,  3, 59,  0), (2011, 1, 1,  4,  0,  0)),
        )

    def test_getNextBuildTime_hours_single(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                hour=4)
        return self.do_getNextBuildTime_test(sched,
            ((2011, 1, 1,  3,  0), (2011, 1, 1,  4,  0)),
            ((2011, 1, 1, 13,  0), (2011, 1, 2,  4,  0)),
        )

    def test_getNextBuildTime_hours_multiple(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                hour=[7, 19])
        return self.do_getNextBuildTime_test(sched,
            ((2011, 1, 1,  3,  0), (2011, 1, 1,  7,  0)),
            ((2011, 1, 1,  7,  1), (2011, 1, 1, 19,  0)),
            ((2011, 1, 1, 18, 59), (2011, 1, 1, 19,  0)),
            ((2011, 1, 1, 19, 59), (2011, 1, 2,  7,  0)),
        )

    def test_getNextBuildTime_hours_minutes(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                hour=13, minute=19)
        return self.do_getNextBuildTime_test(sched,
            ((2011, 1, 1,  3, 11), (2011, 1, 1, 13, 19)),
            ((2011, 1, 1, 13, 19), (2011, 1, 2, 13, 19)),
            ((2011, 1, 1, 23, 59), (2011, 1, 2, 13, 19)),
        )

    def test_getNextBuildTime_month_single(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                month=3)
        return self.do_getNextBuildTime_test(sched,
            ((2011, 2, 27,  3, 11), (2011, 3, 1,  0,  0)),
            ((2011, 3,  1,  1, 11), (2011, 3, 1,  2,  0)), # still hourly!
        )

    def test_getNextBuildTime_month_multiple(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                month=[4, 6])
        return self.do_getNextBuildTime_test(sched,
            ((2011, 3, 30,  3, 11), (2011, 4, 1,  0,  0)),
            ((2011, 4,  1,  1, 11), (2011, 4, 1,  2,  0)), # still hourly!
            ((2011, 5, 29,  3, 11), (2011, 6, 1,  0,  0)),
        )

    def test_getNextBuildTime_month_dayOfMonth(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                month=[3, 6], dayOfMonth=[15])
        return self.do_getNextBuildTime_test(sched,
            ((2011, 2, 12,  3, 11), (2011, 3, 15,  0,  0)),
            ((2011, 3, 12,  3, 11), (2011, 3, 15,  0,  0)),
        )

    def test_getNextBuildTime_dayOfMonth_single(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                dayOfMonth=10)
        return self.do_getNextBuildTime_test(sched,
            ((2011,  1,  9,  3,  0), (2011,  1, 10,  0,  0)),
            ((2011,  1, 10,  3,  0), (2011,  1, 10,  4,  0)), # still hourly!
            ((2011,  1, 30,  3,  0), (2011,  2, 10,  0,  0)),
            ((2011, 12, 30, 11,  0), (2012,  1, 10,  0,  0)),
        )

    def test_getNextBuildTime_dayOfMonth_multiple(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                dayOfMonth=[10, 20, 30])
        return self.do_getNextBuildTime_test(sched,
            ((2011,  1,  9, 22,  0), (2011,  1, 10,  0,  0)),
            ((2011,  1, 19, 22,  0), (2011,  1, 20,  0,  0)),
            ((2011,  1, 29, 22,  0), (2011,  1, 30,  0,  0)),
            ((2011,  2, 29, 22,  0), (2011,  3, 10,  0,  0)), # no Feb 30!
        )

    def test_getNextBuildTime_dayOfMonth_hours_minutes(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                dayOfMonth=15, hour=20, minute=30)
        return self.do_getNextBuildTime_test(sched,
            ((2011,  1, 13, 22, 19), (2011,  1, 15, 20, 30)),
            ((2011,  1, 15, 19, 19), (2011,  1, 15, 20, 30)),
            ((2011,  1, 15, 20, 29), (2011,  1, 15, 20, 30)),
        )

    def test_getNextBuildTime_dayOfWeek_single(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                dayOfWeek=1) # Tuesday (2011-1-1 was a Saturday)
        return self.do_getNextBuildTime_test(sched,
            ((2011,  1,  3, 22, 19), (2011,  1,  4,  0,  0)),
            ((2011,  1,  4, 19, 19), (2011,  1,  4, 20,  0)), # still hourly!
        )

    def test_getNextBuildTime_dayOfWeek_multiple_hours(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                dayOfWeek=[1,3], hour=1) # Tuesday, Thursday (2011-1-1 was a Saturday)
        return self.do_getNextBuildTime_test(sched,
            ((2011,  1,  3, 22, 19), (2011,  1,  4,  1,  0)),
            ((2011,  1,  4, 22, 19), (2011,  1,  6,  1,  0)),
        )

    def test_getNextBuildTime_dayOfWeek_dayOfMonth(self):
        sched = self.makeScheduler(name='test', builderNames=['test'],
                dayOfWeek=[1,4], dayOfMonth=5, hour=1)
        return self.do_getNextBuildTime_test(sched,
            ((2011,  1,  3, 22, 19), (2011,  1,  4,  1,  0)), # Tues
            ((2011,  1,  4, 22, 19), (2011,  1,  5,  1,  0)), # 5th
            ((2011,  1,  5, 22, 19), (2011,  1,  7,  1,  0)), # Thurs
        )

class NightlyCroniterImport(config.ConfigErrorsMixin, unittest.TestCase):

    def setUp(self):
        self.savedModules = sys.modules.copy()

    def tearDown(self):
        sys.modules.clear()
        sys.modules.update(self.savedModules)

    def test_error_without_dateutil(self):
        del sys.modules['buildbot.schedulers.timed']
        del sys.modules['buildbot.util']
        sys.modules["dateutil.relativedelta"] = None
        from buildbot.schedulers.timed import NightlyBase
        self.assertRaisesConfigError("python-dateutil",
                lambda: NightlyBase(name='name', builderNames=[]))
