from datetime import timedelta as td

from django.core import mail
from django.utils.timezone import now
from hc.api.management.commands.sendreports import Command
from hc.api.models import Check
from hc.test import BaseTestCase


class SendAlertsTestCase(BaseTestCase):

    def setUp(self):
        super(SendAlertsTestCase, self).setUp()

        # Make alice eligible for reports:
        # account needs to be more than one month old
        self.alice.date_joined = now() - td(days=365)
        self.alice.save()

        # Make alice eligible for nags:
        self.profile.nag_period = td(hours=1)
        self.profile.next_nag_date = now() - td(seconds=10)
        self.profile.save()

        # And it needs at least one check that has been pinged.
        self.check = Check(user=self.alice, last_ping=now())
        self.check.status = "down"
        self.check.save()

    def test_it_sends_report(self):
        found = Command().handle_one_monthly_report()
        self.assertTrue(found)

        self.profile.refresh_from_db()
        self.assertTrue(self.profile.next_report_date > now())
        self.assertEqual(len(mail.outbox), 1)

    def test_it_obeys_next_report_date(self):
        self.profile.next_report_date = now() + td(days=1)
        self.profile.save()

        found = Command().handle_one_monthly_report()
        self.assertFalse(found)

    def test_it_obeys_reports_allowed_flag(self):
        self.profile.reports_allowed = False
        self.profile.save()

        found = Command().handle_one_monthly_report()
        self.assertFalse(found)

    def test_it_requires_pinged_checks(self):
        self.check.delete()

        found = Command().handle_one_monthly_report()
        self.assertTrue(found)

        # No email should have been sent:
        self.assertEqual(len(mail.outbox), 0)

    def test_it_sends_nag(self):
        found = Command().handle_one_nag()
        self.assertTrue(found)

        self.profile.refresh_from_db()
        self.assertTrue(self.profile.next_nag_date > now())
        self.assertEqual(len(mail.outbox), 1)

    def test_it_obeys_next_nag_date(self):
        self.profile.next_nag_date = now() + td(days=1)
        self.profile.save()

        # If next_nag_date is in future, a nag should not get sent.
        found = Command().handle_one_nag()
        self.assertFalse(found)

    def test_it_obeys_nag_period(self):
        self.profile.nag_period = td()
        self.profile.save()

        # If nag_period is 0 ("disabled"), a nag should not get sent.
        found = Command().handle_one_nag()
        self.assertFalse(found)

    def test_nags_require_down_checks(self):
        self.check.status = "up"
        self.check.save()

        found = Command().handle_one_nag()
        self.assertTrue(found)

        # No email should have been sent:
        self.assertEqual(len(mail.outbox), 0)

        # next_nag_date should now be unset
        self.profile.refresh_from_db()
        self.assertIsNone(self.profile.next_nag_date)