from django.core.exceptions import ValidationError
from django.test import TestCase

from apps.events.services import event_type_update
from apps.events.tests.helpers import make_event_type


class EventTypeModelTest(TestCase):
    def test_create_event_type(self) -> None:
        et = make_event_type(name="page_view", display_name="Page View")
        self.assertEqual(et.name, "page_view")
        self.assertEqual(et.display_name, "Page View")
        self.assertFalse(et.requires_exposure)
        self.assertTrue(et.is_active)

    def test_create_event_type_with_required_fields(self) -> None:
        et = make_event_type(
            name="click",
            display_name="Click",
            required_fields=["screen", "element"],
        )
        self.assertEqual(et.required_fields, ["screen", "element"])

    def test_unique_name_constraint(self) -> None:
        make_event_type(name="unique_evt")
        with self.assertRaises((ValidationError, Exception)):
            make_event_type(name="unique_evt")

    def test_invalid_name_rejected(self) -> None:
        with self.assertRaises(ValidationError):
            make_event_type(name="Invalid Name!")

    def test_update_event_type(self) -> None:
        et = make_event_type(name="updatable")
        updated = event_type_update(
            event_type=et,
            display_name="Updated Name",
            requires_exposure=True,
        )
        self.assertEqual(updated.display_name, "Updated Name")
        self.assertTrue(updated.requires_exposure)

    def test_update_disallowed_field(self) -> None:
        et = make_event_type(name="no_rename")
        with self.assertRaises(ValidationError):
            event_type_update(event_type=et, name="renamed")

    def test_archive_event_type(self) -> None:
        et = make_event_type(name="archivable")
        updated = event_type_update(event_type=et, is_active=False)
        self.assertFalse(updated.is_active)