import glob
import os

import pytest
from django.conf import settings
from django.contrib.auth.models import User
from django.urls import reverse
from rest_framework import status
from rest_framework.test import APIRequestFactory, force_authenticate, APIClient

from core.utils import dtnow
from devices.models.device import DeviceType
from devices.models.endpoint_device import EndpointModel
from perms.models import Perm
from storage.models import DataStorage
from storage.views import StorageViewSet

TMP_DIR_EXPORT = '/tmp/export'
TEST_FILES = os.path.join(settings.BASE_DIR, 'storage/tests/test_files/')


@pytest.mark.django_db
class TestStorage(object):

    @pytest.fixture(autouse=True)
    def setup_tests(self, django_user_model):
        self.admin_user = django_user_model.objects.get(username='admin')
        os.makedirs(TMP_DIR_EXPORT, exist_ok=True)
        yield
        files = glob.glob(f'{TMP_DIR_EXPORT}/*')
        for file in files:
            os.remove(os.path.join(TMP_DIR_EXPORT, file))

    @pytest.mark.unit
    @pytest.mark.skip(reason="Fix in 1.5")
    def test_user_can_download_file(self, client, add_user_with_permissions, get_url):
        u_name = 'pro100ton3333'
        u_pass = 'ponala61'
        add_user_with_permissions(username=u_name, password=u_pass)

        client.login(username=u_name, password=u_pass)

        file1 = open('file1', 'w')
        file1.write('!!!!!!!!!!!!!!!')
        file1.close()

        user = User.objects.get(username=u_name)

        store1 = DataStorage(type=DataStorage.Type.UNKNOWN,
                             format=DataStorage.Format.UNKNOWN,
                             user=user,
                             size=1,
                             crc={'type': 'bad'},
                             file='file1')
        store1.save()

        os.system('cp file1 ' + store1.get_full_path())

        response = client.get(get_url('store-download', kwargs={"id": store1.pk}))

        os.remove('file1')
        os.remove(store1.get_full_path())

        assert response['Content-Type'] == 'text/html; charset=utf-8'

    @pytest.mark.unit
    @pytest.mark.skip(reason="Fix in 1.5")
    def test_download_update_last_access(self,
                                         client,
                                         add_user_with_permissions,
                                         get_url):
        u_name = 'pro100ton3333'
        u_pass = 'ponala61'
        add_user_with_permissions(username=u_name, password=u_pass)

        client.login(username=u_name, password=u_pass)

        file1 = open('file1', 'w')
        file1.write('!!!!!!!!!!!!!!!')
        file1.close()

        user = User.objects.get(username=u_name)

        dt = dtnow(days=-1)

        store1 = DataStorage(type=DataStorage.Type.UNKNOWN,
                             format=DataStorage.Format.UNKNOWN,
                             user=user,
                             size=1,
                             crc={'type': 'bad'},
                             file='file1')
        store1.save()

        os.system('cp file1 ' + store1.get_full_path())

        response = client.get(get_url('store-download', kwargs={"id": store1.pk}))

        os.remove('file1')
        os.remove(store1.get_full_path())

        assert response['Content-Type'] == 'text/html; charset=utf-8'

        store = DataStorage.objects.get(pk=store1.pk)

        assert store.last_access != dt

    @pytest.mark.unit
    def test_get_data_current_user_and_superuser(self, add_user_with_permissions):
        url = reverse('store-list')
        request = APIRequestFactory().get(url)
        view = StorageViewSet.as_view({'get': 'list'})

        superuser = add_user_with_permissions(username="superuser", password="pass", is_superuser=True)
        user = add_user_with_permissions(username="user", password='pass', permissions=[Perm.can_view_storage])
        store = DataStorage(type=DataStorage.Type.UNKNOWN,
                            format=DataStorage.Format.UNKNOWN,
                            user=user,
                            size=1,
                            crc={'type': 'bad'},
                            file='file1')
        store.save()

        force_authenticate(request, user=user)
        response = view(request)
        assert response.status_code == 200
        assert int(response.data.get('count')) == 1

        force_authenticate(request, user=superuser)
        response = view(request)
        assert response.status_code == 200
        assert int(response.data.get('count')) == 1

    @pytest.mark.unit
    def test_get_data_another_user(self, add_user_with_permissions):
        url = reverse('store-list')
        request = APIRequestFactory().get(url)
        view = StorageViewSet.as_view({'get': 'list'})

        superuser = add_user_with_permissions(username="superuser", password="pass", is_superuser=True)
        user = add_user_with_permissions(username="user", password='pass', permissions=[Perm.can_view_storage])
        store = DataStorage(type=DataStorage.Type.UNKNOWN,
                            format=DataStorage.Format.UNKNOWN,
                            user=superuser,
                            size=1,
                            crc={'type': 'bad'},
                            file='file1')
        store.save()

        force_authenticate(request, user=user)
        response = view(request)
        assert response.status_code == 200
        assert int(response.data.get('count')) == 0

    @pytest.mark.unit
    def test_get_rotation_file(self, add_user_with_permissions):
        """Test show rotation file if user has `can_download_rotation_files`."""
        superuser = add_user_with_permissions(username="superuser", password="pass", is_superuser=True)
        user_with_perms = add_user_with_permissions(
            username="user1", password='PassWord123',
            permissions=[Perm.can_view_storage, Perm.can_download_rotation_files]
        )
        user_without_perm = add_user_with_permissions(
            username="user2", password='PassWord123', permissions=[Perm.can_view_storage]
        )
        store = DataStorage(type=DataStorage.Type.DB_DUMP,
                            format=DataStorage.Format.UNKNOWN,
                            user=superuser,
                            size=1,
                            crc={'type': 'bad'},
                            file='file1',
                            description='Table rotation')
        store.save()
        url = reverse('store-list')
        request = APIRequestFactory().get(url)
        view = StorageViewSet.as_view({'get': 'list'})
        force_authenticate(request, user=user_with_perms)
        response = view(request)
        assert response.status_code == 200
        assert response.data.get('count') == 1

        force_authenticate(request, user=user_without_perm)
        response = view(request)
        assert response.status_code == 200
        assert not response.data.get('count')

    @pytest.mark.unit
    def test_delete_file(self, add_user_with_permissions):
        """Test delete file if user has `can_view_storage`."""
        user_with_perms = add_user_with_permissions(
            username="user1", password='PassWord123',
            permissions=[Perm.can_view_storage]
        )
        store = DataStorage(type=DataStorage.Type.UNKNOWN,
                            format=DataStorage.Format.UNKNOWN,
                            user=user_with_perms,
                            size=1,
                            crc={'type': 'bad'},
                            file='file1',
                            description='Table rotation')
        store.save()

        client = APIClient()
        client.force_authenticate(user=user_with_perms)

        url = reverse('store-list')
        response = client.get(url)
        assert response.data.get('count') == 1

        url = reverse('store-detail', kwargs={'pk': store.pk})
        response = client.delete(url)

        url = reverse('store-list')
        response = client.get(url)
        assert response.data.get('count') == 0

    @pytest.mark.unit
    def test_download_file(self, add_user_with_permissions):
        user_with_perms = add_user_with_permissions(
            username="user1", password='PassWord123',
            permissions=[Perm.can_view_storage]
        )
        store = DataStorage(type=DataStorage.Type.UNKNOWN,
                            format=DataStorage.Format.UNKNOWN,
                            user=user_with_perms,
                            size=1,
                            crc={'type': 'bad'},
                            file='file1',
                            description='Table rotation')
        store.save()

        file1 = open('file1', 'w')
        file1.write('!!!!!!!!!!!!!!!')
        file1.close()

        client = APIClient()
        client.force_authenticate(user=user_with_perms)

        url = reverse('store-download', kwargs={'pk': store.pk})
        response = client.get(url)

        os.system('cp file1 ' + store.get_full_path())

        response = client.get(reverse('store-download', kwargs={"pk": store.pk}))

        os.remove('file1')
        os.remove(store.get_full_path())

        assert response.status_code == 200

    @pytest.mark.unit
    def test_upload_antivirus_database(self, api_client):
        """Test upload antivirus database to storage"""
        api_client.force_authenticate(self.admin_user)
        ep_test = EndpointModel.objects.create(name='EP_TEST_1', type=DeviceType.ENDPOINT, ip='127.0.0.100',
                                               port='5555', antivirus_update_db=False)
        file_path = os.path.join(TEST_FILES, 'antivirus_update.zip')
        file = open(file_path, 'rb')
        url = reverse('store-antivirus')
        data = {'file': file}
        response = api_client.post(url, data)
        assert response.json()['status'] == 'ok'
        assert response.status_code == status.HTTP_200_OK
        assert DataStorage.objects.filter(type=DataStorage.Type.CLAMAV).count() == 1
        assert EndpointModel.objects.get(pk=ep_test.pk).antivirus_update_db is True