from unittest import mock

from bx_django_utils.test_utils.html_assertion import HtmlAssertionMixin, assert_html_response_snapshot
from django.contrib.auth.models import User
from django.template.defaulttags import CsrfTokenNode, NowNode
from django.test import TestCase, override_settings
from django_tools.unittest_utils.mockup import ImageDummy
from model_bakery import baker
from override_storage import locmem_stats_override_storage
from reversion.models import Revision

from inventory.models import MemoImageModel, MemoModel
from inventory.permissions import get_or_create_normal_user_group
from inventory_project.tests.mocks import MockInventoryVersionString


class AdminAnonymousTests(TestCase):
    def test_login(self):
        response = self.client.get('/admin/inventory/memomodel/add/', secure=True, HTTP_ACCEPT_LANGUAGE='en')
        self.assertRedirects(
            response,
            expected_url='/admin/login/?next=/admin/inventory/memomodel/add/',
            fetch_redirect_response=False,
        )


@override_settings(SECURE_SSL_REDIRECT=False)
class AdminTestCase(HtmlAssertionMixin, TestCase):
    @classmethod
    def setUpTestData(cls):
        cls.normaluser = baker.make(User, username='NormalUser', is_staff=True, is_active=True, is_superuser=False)
        assert cls.normaluser.user_permissions.count() == 0
        group = get_or_create_normal_user_group()[0]
        cls.normaluser.groups.set([group])

    def test_normal_user_create_minimal_item(self):
        self.client.force_login(self.normaluser)

        with mock.patch.object(NowNode, 'render', return_value='MockedNowNode'), mock.patch.object(
            CsrfTokenNode, 'render', return_value='MockedCsrfTokenNode'
        ), MockInventoryVersionString():
            response = self.client.get('/admin/inventory/memomodel/add/')
        assert response.status_code == 200
        self.assert_html_parts(response, parts=('<title>Add Memo | PyInventory vMockedVersionString</title>',))
        assert_html_response_snapshot(response=response, validate=False)

        assert MemoModel.objects.count() == 0

        response = self.client.post(
            path='/admin/inventory/memomodel/add/',
            data={
                'version': 0,  # VersionProtectBaseModel field
                'name': 'The Memo Name',
                'memo': 'This is a test Memo',
                'memoimagemodel_set-TOTAL_FORMS': '0',
                'memoimagemodel_set-INITIAL_FORMS': '0',
                'memoimagemodel_set-MIN_NUM_FORMS': '0',
                'memoimagemodel_set-MAX_NUM_FORMS': '1000',
                'memoimagemodel_set-__prefix__-position': '0',
                'memofilemodel_set-TOTAL_FORMS': '0',
                'memofilemodel_set-INITIAL_FORMS': '0',
                'memofilemodel_set-MIN_NUM_FORMS': '0',
                'memofilemodel_set-MAX_NUM_FORMS': '1000',
                'memofilemodel_set-__prefix__-position': '0',
                'memolinkmodel_set-TOTAL_FORMS': '0',
                'memolinkmodel_set-INITIAL_FORMS': '0',
                'memolinkmodel_set-MIN_NUM_FORMS': '0',
                'memolinkmodel_set-MAX_NUM_FORMS': '1000',
                'memolinkmodel_set-__prefix__-position': '0',
                '_save': 'Save',
            },
        )
        assert response.status_code == 302, response.content.decode('utf-8')  # Form error?
        self.assertRedirects(response, expected_url='/admin/inventory/memomodel/')

        data = list(MemoModel.objects.values_list('name', 'memo'))
        assert data == [('The Memo Name', 'This is a test Memo')]

        item = MemoModel.objects.first()

        self.assert_messages(
            response,
            expected_messages=[
                f'The Memo “<a href="/admin/inventory/memomodel/{item.pk}/change/">The Memo Name</a>”'
                ' was added successfully.'
            ],
        )

        assert item.user_id == self.normaluser.pk

        # django-revision integration:
        comments = list(Revision.objects.order_by('date_created').values_list('comment', flat=True))
        self.assertEqual(comments, ['Added.'])

    def test_new_item_with_image(self):
        """
        https://github.com/jedie/PyInventory/issues/33
        """
        self.client.force_login(self.normaluser)

        img = ImageDummy(width=1, height=1, format='png').in_memory_image_file(filename='test.png')

        with locmem_stats_override_storage() as storage_stats:
            response = self.client.post(
                path='/admin/inventory/memomodel/add/',
                data={
                    'version': 0,  # VersionProtectBaseModel field
                    'name': 'The Memo Name',
                    'memo': 'This is a test Memo',
                    'memoimagemodel_set-TOTAL_FORMS': '1',
                    'memoimagemodel_set-INITIAL_FORMS': '0',
                    'memoimagemodel_set-MIN_NUM_FORMS': '0',
                    'memoimagemodel_set-MAX_NUM_FORMS': '1000',
                    'memoimagemodel_set-0-position': '0',
                    'memoimagemodel_set-__prefix__-position': '0',
                    'memoimagemodel_set-0-image': img,
                    'memofilemodel_set-TOTAL_FORMS': '0',
                    'memofilemodel_set-INITIAL_FORMS': '0',
                    'memofilemodel_set-MIN_NUM_FORMS': '0',
                    'memofilemodel_set-MAX_NUM_FORMS': '1000',
                    'memofilemodel_set-__prefix__-position': '0',
                    'memolinkmodel_set-TOTAL_FORMS': '0',
                    'memolinkmodel_set-INITIAL_FORMS': '0',
                    'memolinkmodel_set-MIN_NUM_FORMS': '0',
                    'memolinkmodel_set-MAX_NUM_FORMS': '1000',
                    'memolinkmodel_set-__prefix__-position': '0',
                    '_save': 'Save',
                },
            )
            assert response.status_code == 302, response.content.decode('utf-8')  # Form error?
            memo = MemoModel.objects.first() or MemoModel()
            self.assert_messages(
                response,
                expected_messages=[
                    f'The Memo “<a href="/admin/inventory/memomodel/{memo.pk}/change/">The Memo Name</a>”'
                    ' was added successfully.'
                ],
            )
            self.assertRedirects(response, expected_url='/admin/inventory/memomodel/')

            data = list(MemoModel.objects.values_list('name', 'memo'))
            assert data == [('The Memo Name', 'This is a test Memo')]

            assert memo.user_id == self.normaluser.pk

            assert MemoImageModel.objects.count() == 1
            image = MemoImageModel.objects.first()
            assert image.name == 'test.png'
            assert image.memo == memo
            assert image.user_id == self.normaluser.pk

            # Test image file should be stored:
            self.assertEqual(storage_stats.save_cnt, 1)