"""Basic tests for the /transcription/meeting endpoint."""
from pathlib import Path

from fastapi.testclient import TestClient

from app import app


_DIR = Path(__file__).resolve().parent


def get_auth_headers() -> dict:
    """Helper to obtain an auth header for tests.

    For now we call the real /auth/token endpoint, which in this project does not
    require credentials and returns a short-lived JWT suitable for local tests.
    """
    client = TestClient(app)
    response = client.post("/auth/token")
    response.raise_for_status()
    token = response.json()["access_token"]
    return {"Authorization": f"Bearer {token}"}


def test_transcription_meeting_rejects_unsupported_format(tmp_path):
    """/transcription/meeting should reject unsupported file formats before calling OpenAI."""
    client = TestClient(app)
    headers = get_auth_headers()

    # Create a small dummy text file (unsupported extension)
    dummy_file = tmp_path / "dummy.txt"
    dummy_file.write_text("not an audio file", encoding="utf-8")

    with dummy_file.open("rb") as f:
        files = {"file": ("dummy.txt", f, "text/plain")}
        data = {"project_id": "test-proj", "max_duration_seconds": 3600}
        response = client.post(
            "/transcription/meeting",
            headers=headers,
            files=files,
            data=data,
        )

    assert response.status_code == 400
    body = response.json()
    assert "Unsupported file format" in body["detail"]


def test_transcription_meeting_includes_metadata_on_success(monkeypatch, tmp_path):
    """Successful /transcription/meeting call should include usage/metadata fields."""
    client = TestClient(app)
    headers = get_auth_headers()

    # Create a tiny dummy wav file (extension supported, content irrelevant here)
    dummy_file = tmp_path / "meeting.wav"
    dummy_file.write_bytes(b"RIFF....WAVEfmt ")

    # We don't mock OpenAI here; the goal is just to assert response shape
    with dummy_file.open("rb") as f:
        files = {"file": ("meeting.wav", f, "audio/wav")}
        data = {"project_id": "test-proj", "max_duration_seconds": 3600}
        response = client.post(
            "/transcription/meeting",
            headers=headers,
            files=files,
            data=data,
        )

    # Depending on environment/OpenAI, this may fail; in that case, skip shape assertion
    if response.status_code == 200:
        body = response.json()
        assert "text" in body
        # New optional fields added by the carbon/tokens pipeline
        assert "usage" in body
        assert "metadata" in body