"""Tests for core application."""

from io import StringIO

import httmock
from dateutil.relativedelta import relativedelta

from django.core import mail
from django.core import management
from django.test import TestCase
from django.urls import reverse
from django.utils import timezone

from modoboa.lib.tests import ModoTestCase
from .. import factories, mocks, models


class AuthenticationTestCase(ModoTestCase):

    """Validate authentication scenarios."""

    @classmethod
    def setUpTestData(cls):  # NOQA:N802
        """Create test data."""
        super(AuthenticationTestCase, cls).setUpTestData()
        cls.account = factories.UserFactory(
            username="user@test.com", groups=("SimpleUsers",)
        )

    def test_authentication(self):
        """Validate simple case."""
        self.client.logout()
        data = {"username": "user@test.com", "password": "toto"}
        response = self.client.post(reverse("core:login"), data)
        self.assertEqual(response.status_code, 302)
        self.assertTrue(response.url.endswith(reverse("core:user_index")))

        response = self.client.post(reverse("core:logout"), {})
        self.assertEqual(response.status_code, 302)

        data = {"username": "admin", "password": "password"}
        response = self.client.post(reverse("core:login"), data)
        self.assertEqual(response.status_code, 302)
        self.assertTrue(response.url.endswith(reverse("core:dashboard")))


class ManagementCommandsTestCase(TestCase):
    """Test management commands."""

    def test_change_default_admin(self):
        """Use dedicated option."""
        management.call_command(
            "load_initial_data", "--admin-username", "modoadmin")
        self.assertTrue(
            self.client.login(username="modoadmin", password="password"))

    def test_clean_logs(self):
        """Run cleanlogs command."""
        log1 = factories.LogFactory()
        factories.LogFactory()
        log1.date_created -= relativedelta(years=2)
        log1.save(update_fields=["date_created"])
        management.call_command("cleanlogs")
        self.assertEqual(models.Log.objects.count(), 1)

    def test_clean_inactive_accounts(self):
        """Run clean_inactive_accounts command."""
        management.call_command("load_initial_data")

        # no inactive account, should exit normaly
        management.call_command("clean_inactive_accounts")

        last_login = timezone.now() - relativedelta(days=45)
        account = factories.UserFactory(
            username="user1@domain.test", groups=("SimpleUsers", ),
            last_login=last_login
        )
        management.call_command("clean_inactive_accounts", "--dry-run")
        account.refresh_from_db()
        self.assertTrue(account.is_active)

        out = StringIO()
        management.call_command(
            "clean_inactive_accounts", "--verbose", "--dry-run", stdout=out)
        self.assertIn("user1@domain.test", out.getvalue())

        management.call_command("clean_inactive_accounts", "--silent")
        account.refresh_from_db()
        self.assertFalse(account.is_active)

        account.is_active = True
        account.save(update_fields=["is_active"])

        management.call_command(
            "clean_inactive_accounts", "--silent", "--delete")
        with self.assertRaises(models.User.DoesNotExist):
            account.refresh_from_db()


class ProfileTestCase(ModoTestCase):
    """Profile related tests."""

    @classmethod
    def setUpTestData(cls):  # NOQA:N802
        """Create test data."""
        super(ProfileTestCase, cls).setUpTestData()
        cls.account = factories.UserFactory(
            username="user@test.com", groups=("SimpleUsers",)
        )

    def test_update_profile(self):
        """Update profile without password."""
        data = {
            "first_name": "Homer", "last_name": "Simpson",
            "phone_number": "+33612345678", "language": "en"
        }
        self.ajax_post(reverse("core:user_profile"), data)
        admin = models.User.objects.get(username="admin")
        self.assertEqual(admin.last_name, "Simpson")

    def test_update_password(self):
        """Password update

        Two cases:
        * The default admin changes his password (no associated Mailbox)
        * A normal user changes his password
        """
        self.ajax_post(reverse("core:user_profile"),
                       {"language": "en", "oldpassword": "password",
                        "newpassword": "12345Toi", "confirmation": "12345Toi"})
        self.client.logout()

        self.assertEqual(
            self.client.login(username="admin", password="12345Toi"), True
        )
        self.assertEqual(
            self.client.login(username="user@test.com", password="toto"), True
        )

        self.ajax_post(
            reverse("core:user_profile"),
            {"oldpassword": "toto",
             "newpassword": "tutu", "confirmation": "tutu"},
            status=400
        )

        self.ajax_post(
            reverse("core:user_profile"),
            {"language": "en", "oldpassword": "toto",
             "newpassword": "Toto1234", "confirmation": "Toto1234"}
        )
        self.client.logout()
        self.assertTrue(
            self.client.login(username="user@test.com", password="Toto1234")
        )

    def test_update_password_url(self):
        """Check if external is used when defined."""
        self.set_global_parameter(
            "update_password_url", "http://update.password")
        non_local_user = factories.UserFactory(
            username="user@external.com", groups=("SimpleUsers",),
            is_local=False
        )
        self.client.force_login(non_local_user)
        url = reverse("core:user_profile")
        response = self.client.get(url)
        self.assertContains(response, "http://update.password")

        self.client.force_login(self.account)
        response = self.client.get(url)
        self.assertNotContains(response, "http://update.password")


class APIAccessFormTestCase(ModoTestCase):

    """Check form access."""

    @classmethod
    def setUpTestData(cls):  # NOQA:N802
        """Create test data."""
        super(APIAccessFormTestCase, cls).setUpTestData()
        cls.account = factories.UserFactory(
            username="user@test.com", groups=("SimpleUsers",)
        )

    def test_form_access(self):
        """Check access restrictions."""
        url = reverse("core:user_api_access")
        self.ajax_get(url)
        self.client.logout()
        self.client.login(username="user@test.com", password="toto")
        response = self.client.get(url, HTTP_X_REQUESTED_WITH="XMLHttpRequest")
        self.assertEqual(response.status_code, 278)

    def test_form(self):
        """Check that token is created/removed."""
        url = reverse("core:user_api_access")
        self.ajax_post(url, {"enable_api_access": True})
        user = models.User.objects.get(username="admin")
        self.assertTrue(hasattr(user, "auth_token"))
        self.ajax_post(url, {"enable_api_access": False})
        user = models.User.objects.get(username="admin")
        self.assertFalse(hasattr(user, "auth_token"))


class APICommunicationTestCase(ModoTestCase):
    """Check communication with the API."""

    def test_management_command(self):
        """Check command."""
        with httmock.HTTMock(
                mocks.modo_api_instance_search,
                mocks.modo_api_instance_create,
                mocks.modo_api_instance_update,
                mocks.modo_api_versions):
            management.call_command("communicate_with_public_api")
        self.assertEqual(models.LocalConfig.objects.first().api_pk, 100)
        self.assertEqual(len(mail.outbox), 0)

        url = reverse("core:information")
        response = self.ajax_request("get", url)
        self.assertIn("9.0.0", response["content"])

        # Enable notifications
        self.set_global_parameter("send_new_versions_email", True)
        with httmock.HTTMock(
                mocks.modo_api_instance_search,
                mocks.modo_api_instance_create,
                mocks.modo_api_instance_update,
                mocks.modo_api_versions):
            management.call_command("communicate_with_public_api")
        self.assertEqual(len(mail.outbox), 1)

        # Call once again and check no new notification has been sent
        self.set_global_parameter("send_new_versions_email", True)
        with httmock.HTTMock(
                mocks.modo_api_instance_search,
                mocks.modo_api_instance_create,
                mocks.modo_api_instance_update,
                mocks.modo_api_versions):
            management.call_command("communicate_with_public_api")
        self.assertEqual(len(mail.outbox), 1)

        # Make sure no new notification is sent when no updates
        with httmock.HTTMock(
                mocks.modo_api_instance_search,
                mocks.modo_api_instance_create,
                mocks.modo_api_instance_update,
                mocks.modo_api_versions_no_update):
            management.call_command("communicate_with_public_api")
        self.assertEqual(len(mail.outbox), 1)