import sys
import types
from pathlib import Path
from types import SimpleNamespace


_real_routes = sys.modules.get("abogen.webui.routes")
# Import routes.utils.form without executing routes/__init__.py (which imports
# every blueprint). Use a temporary namespace package, then restore the real
# module so later tests can still `from abogen.webui.routes import ...`.
routes_package = types.ModuleType("abogen.webui.routes")
routes_package.__path__ = [
    str(Path(__file__).parents[1] / "abogen" / "webui" / "routes")
]
sys.modules["abogen.webui.routes"] = routes_package

from abogen.webui.routes.utils.form import (  # noqa: E402
    build_pending_job_from_extraction,
    load_settings,
)

if _real_routes is not None:
    sys.modules["abogen.webui.routes"] = _real_routes
else:
    del sys.modules["abogen.webui.routes"]


def test_user_metadata_overrides_extraction_fallback(tmp_path: Path) -> None:
    extraction = SimpleNamespace(
        chapters=[SimpleNamespace(title="Chapter 1", text="Text")],
        metadata={"title": "423d828962c34d2b8a53bbe91176305a"},
        cover_image=None,
        cover_mime=None,
        total_characters=4,
        combined_text="Text",
    )

    result = build_pending_job_from_extraction(
        stored_path=tmp_path / "book.txt",
        original_name="book.txt",
        extraction=extraction,
        form={"meta_title": "My Book", "meta_author": "Ada Author"},
        settings=load_settings(),
        profiles={},
    )

    assert result.pending.metadata_tags["title"] == "My Book"
    assert result.pending.metadata_tags["author"] == "Ada Author"
    assert result.pending.metadata_tags["authors"] == "Ada Author"