import pytest
from django.core.files.base import ContentFile

from apps.gallery.models import Gallery
from apps.gallery.tasks import process_uploaded_image


pytestmark = [pytest.mark.integration, pytest.mark.django_db]


def test_gallery_processing_updates_metadata(user_factory, tmp_path, settings, mocker):
    settings.MEDIA_ROOT = str(tmp_path)
    gallery = Gallery(title="Photo", uploaded_by=user_factory())
    gallery._defer_image_processing = True
    gallery.image.save("gallery/photo.jpg", ContentFile(b"image data"))
    result = mocker.Mock(file_size=10, width=20, height=30)
    process = mocker.patch("apps.gallery.tasks.safe_process_public_image", return_value=result)
    assert process_uploaded_image.run(gallery.pk) == "Processed image: Photo"
    gallery.refresh_from_db()
    assert (gallery.file_size, gallery.width, gallery.height) == (10, 20, 30)
    process.assert_called_once()


def test_gallery_processing_missing_image_and_id(user_factory):
    empty = Gallery.objects.create(title="Empty", uploaded_by=user_factory())
    assert process_uploaded_image.run(empty.pk) is None
    with pytest.raises(Gallery.DoesNotExist):
        process_uploaded_image.run(999999)