import pytest
from django.test import override_settings
from rest_framework.settings import api_settings
from rest_framework.test import APIClient


JWT_REST_FRAMEWORK = {
    'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
    'PAGE_SIZE': 100,
    'DEFAULT_SCHEMA_CLASS': 'drf_spectacular.openapi.AutoSchema',
    'DEFAULT_AUTHENTICATION_CLASSES': [
        'rest_framework_simplejwt.authentication.JWTAuthentication',
    ],
    'DEFAULT_PERMISSION_CLASSES': [
        'rest_framework.permissions.IsAuthenticated',
    ],
}


@pytest.fixture
def jwt_api_client():
    with override_settings(USE_JWT_AUTH=True, REST_FRAMEWORK=JWT_REST_FRAMEWORK):
        api_settings.reload()
        client = APIClient()
        yield client
        api_settings.reload()


@pytest.mark.django_db
def test_register_and_isolated_contacts(jwt_api_client):
    reg = jwt_api_client.post(
        '/api/v1/auth/register/',
        {'username': 'alice', 'password': 'strong-pass-1'},
        format='json',
    )
    assert reg.status_code == 201
    assert reg.data['user']['username'] == 'alice'
    token = reg.data['access']

    create = jwt_api_client.post(
        '/api/v1/contacts/',
        {'name': 'Контакт Alice'},
        format='json',
        HTTP_AUTHORIZATION=f'Bearer {token}',
    )
    assert create.status_code == 201

    reg_b = jwt_api_client.post(
        '/api/v1/auth/register/',
        {'username': 'bob', 'password': 'strong-pass-2'},
        format='json',
    )
    token_b = reg_b.data['access']

    alice_list = jwt_api_client.get(
        '/api/v1/contacts/',
        HTTP_AUTHORIZATION=f'Bearer {token}',
    )
    bob_list = jwt_api_client.get(
        '/api/v1/contacts/',
        HTTP_AUTHORIZATION=f'Bearer {token_b}',
    )
    assert alice_list.data['count'] == 1
    assert bob_list.data['count'] == 0


@pytest.mark.django_db
def test_unauthenticated_api_denied(jwt_api_client, sample_contact):
    response = jwt_api_client.get('/api/v1/contacts/')
    assert response.status_code == 401


@pytest.mark.django_db
def test_update_profile_and_password(jwt_api_client):
    reg = jwt_api_client.post(
        '/api/v1/auth/register/',
        {'username': 'carol', 'email': 'carol@test.com', 'password': 'strong-pass-1'},
        format='json',
    )
    token = reg.data['access']
    auth = {'HTTP_AUTHORIZATION': f'Bearer {token}'}

    profile = jwt_api_client.patch(
        '/api/v1/auth/me/',
        {
            'username': 'carol_new',
            'email': 'new@test.com',
            'current_password': 'strong-pass-1',
        },
        format='json',
        **auth,
    )
    assert profile.status_code == 200
    assert profile.data['username'] == 'carol_new'
    assert profile.data['email'] == 'new@test.com'

    password = jwt_api_client.post(
        '/api/v1/auth/me/password/',
        {
            'current_password': 'strong-pass-1',
            'new_password': 'strong-pass-9',
        },
        format='json',
        **auth,
    )
    assert password.status_code == 200

    login = jwt_api_client.post(
        '/api/v1/auth/token/',
        {'username': 'carol_new', 'password': 'strong-pass-9'},
        format='json',
    )
    assert login.status_code == 200