"""Server-sent events for audio/beat status."""

import asyncio
import json

import pytest


@pytest.mark.asyncio
async def test_initial_sse_line_includes_status(monkeypatch):
    from util import beat_status_broadcaster as bsb

    bsb.configure(
        loop=asyncio.get_running_loop(),
        status_builder=lambda: {"bpm_simulated": True, "beat_seq": 3},
    )
    line = await bsb.initial_sse_line()
    assert line.startswith("data: ")
    payload = json.loads(line[6:])
    assert payload["type"] == "status"
    assert payload["status"]["beat_seq"] == 3


def test_audio_events_sse_first_chunk(server):
    c = server["client"]
    with c.stream("GET", "/api/audio/events") as resp:
        assert resp.status_code == 200
        assert "text/event-stream" in resp.headers.get("content-type", "")
        chunk = next(resp.iter_bytes())
    text = chunk.decode("utf-8")
    assert text.startswith("data: ")
    payload = json.loads(text.strip().removeprefix("data: "))
    assert payload.get("type") == "status"
    assert "bpm_simulated" in payload.get("status", {})