from django.contrib.contenttypes.models import ContentType
from django.test import TestCase

from dcim.forms import SiteForm
from dcim.models import Site
from extras.choices import CustomFieldTypeChoices
from extras.models import CustomField


class CustomFieldModelFormTest(TestCase):

    @classmethod
    def setUpTestData(cls):
        obj_type = ContentType.objects.get_for_model(Site)
        CHOICES = ('A', 'B', 'C')

        cf_text = CustomField.objects.create(name='text', type=CustomFieldTypeChoices.TYPE_TEXT)
        cf_text.content_types.set([obj_type])

        cf_longtext = CustomField.objects.create(name='longtext', type=CustomFieldTypeChoices.TYPE_LONGTEXT)
        cf_longtext.content_types.set([obj_type])

        cf_integer = CustomField.objects.create(name='integer', type=CustomFieldTypeChoices.TYPE_INTEGER)
        cf_integer.content_types.set([obj_type])

        cf_integer = CustomField.objects.create(name='decimal', type=CustomFieldTypeChoices.TYPE_DECIMAL)
        cf_integer.content_types.set([obj_type])

        cf_boolean = CustomField.objects.create(name='boolean', type=CustomFieldTypeChoices.TYPE_BOOLEAN)
        cf_boolean.content_types.set([obj_type])

        cf_date = CustomField.objects.create(name='date', type=CustomFieldTypeChoices.TYPE_DATE)
        cf_date.content_types.set([obj_type])

        cf_url = CustomField.objects.create(name='url', type=CustomFieldTypeChoices.TYPE_URL)
        cf_url.content_types.set([obj_type])

        cf_json = CustomField.objects.create(name='json', type=CustomFieldTypeChoices.TYPE_JSON)
        cf_json.content_types.set([obj_type])

        cf_select = CustomField.objects.create(name='select', type=CustomFieldTypeChoices.TYPE_SELECT, choices=CHOICES)
        cf_select.content_types.set([obj_type])

        cf_multiselect = CustomField.objects.create(
            name='multiselect',
            type=CustomFieldTypeChoices.TYPE_MULTISELECT,
            choices=CHOICES
        )
        cf_multiselect.content_types.set([obj_type])

        cf_object = CustomField.objects.create(
            name='object',
            type=CustomFieldTypeChoices.TYPE_OBJECT,
            object_type=ContentType.objects.get_for_model(Site)
        )
        cf_object.content_types.set([obj_type])

        cf_multiobject = CustomField.objects.create(
            name='multiobject',
            type=CustomFieldTypeChoices.TYPE_MULTIOBJECT,
            object_type=ContentType.objects.get_for_model(Site)
        )
        cf_multiobject.content_types.set([obj_type])

    def test_empty_values(self):
        """
        Test that empty custom field values are stored as null
        """
        form = SiteForm({
            'name': 'Site 1',
            'slug': 'site-1',
            'status': 'active',
        })
        self.assertTrue(form.is_valid())
        instance = form.save()

        for field_type, _ in CustomFieldTypeChoices.CHOICES:
            self.assertIn(field_type, instance.custom_field_data)
            self.assertIsNone(instance.custom_field_data[field_type])