import pytest
from django.urls import reverse

from apps.accounts.models import User


@pytest.mark.django_db
def test_accept_language_sets_content_language_header(client):
    response = client.post(
        reverse("otp_request"),
        {"phone_number": "123", "channel": "sms"},
        content_type="application/json",
        HTTP_ACCEPT_LANGUAGE="en",
    )
    assert response.headers.get("Content-Language") == "en"


@pytest.mark.django_db
def test_user_preference_overrides_accept_language(client):
    user = User.objects.create_user(
        email="locale@example.com",
        phone_number="+966512345678",
    )
    user.preferred_language = "en"
    user.save(update_fields=["preferred_language"])

    client.force_login(user)
    response = client.get(reverse("me"), HTTP_ACCEPT_LANGUAGE="ar-sa")
    assert response.headers.get("Content-Language") == "en"