from pathlib import Path

from video_metadata_analyzer.discovery import discover_video_files


def test_discover_video_files_recursively_filters_supported_extensions(tmp_path: Path) -> None:
    source_a = tmp_path / "source-a"
    source_b = tmp_path / "source-b"
    nested = source_a / "nested"
    nested.mkdir(parents=True)
    source_b.mkdir(parents=True)

    keep_1 = source_a / "movie.mp4"
    keep_2 = nested / "clip.MKV"
    keep_3 = source_b / "recording.mov"
    skip_1 = source_a / "notes.txt"
    skip_2 = nested / "thumb.jpg"

    for path in [keep_1, keep_2, keep_3, skip_1, skip_2]:
        path.write_bytes(b"sample")

    discovered = discover_video_files([source_a, source_b])

    assert discovered == sorted([keep_1, keep_2, keep_3])