import pytest
import httpx
import respx

from app.ingest.webdav import download_file, WebDAVError


@pytest.mark.asyncio
async def test_download_file_returns_bytes():
    base = "https://nc.example.com/remote.php/dav/files/u"
    file_path = "Documents/THB/Studium/2.Semester/Databases/x.pdf"
    expected_url = f"{base}/{file_path}"

    with respx.mock(base_url=base) as mock:
        mock.get(expected_url).mock(return_value=httpx.Response(200, content=b"PDFBYTES"))
        data = await download_file(base, "u", "pw", file_path)
        assert data == b"PDFBYTES"


@pytest.mark.asyncio
async def test_download_file_404_raises():
    base = "https://nc.example.com/remote.php/dav/files/u"
    file_path = "missing.pdf"
    expected_url = f"{base}/{file_path}"

    with respx.mock(base_url=base) as mock:
        mock.get(expected_url).mock(return_value=httpx.Response(404))
        with pytest.raises(WebDAVError):
            await download_file(base, "u", "pw", file_path)


@pytest.mark.asyncio
async def test_download_file_handles_url_encoding():
    base = "https://nc.example.com/remote.php/dav/files/u"
    file_path = "Documents/Folder With Space/file.pdf"

    with respx.mock(base_url=base) as mock:
        # httpx will percent-encode the spaces
        route = mock.get(url__regex=r".*/Folder%20With%20Space/file\.pdf").mock(
            return_value=httpx.Response(200, content=b"OK")
        )
        data = await download_file(base, "u", "pw", file_path)
        assert data == b"OK"
        assert route.called