from __future__ import annotations

import shutil
import wave

import pytest

from app.services.ffprobe_service import FFprobeService


@pytest.mark.skipif(shutil.which("ffprobe") is None, reason="ffprobe is not installed")
async def test_ffprobe_returns_audio_metadata(settings, tmp_path) -> None:
    audio = tmp_path / "tone.wav"
    with wave.open(str(audio), "wb") as stream:
        stream.setnchannels(1)
        stream.setsampwidth(2)
        stream.setframerate(8000)
        stream.writeframes(b"\x00\x00" * 8000)
    metadata = await FFprobeService(settings).probe(audio)
    assert metadata["duration"] == pytest.approx(1.0, abs=0.01)
    assert metadata["audio_streams"][0]["codec"] == "pcm_s16le"