"""Health endpoint smoke test."""

import pytest


@pytest.mark.asyncio
async def test_health_returns_ok(client):
    response = await client.get("/api/health")
    assert response.status_code == 200
    body = await response.get_json()
    assert body == {"status": "ok"}


# --- build identity (milestone 318 step 6) --------------------------------
#
# With no version image tags left, /api/health is the only place an instance
# says which build it is. Both fields are OMITTED when unset rather than sent
# empty: absence already means "cannot say" — an image predating the field
# says exactly that by not having the key — and a second spelling would make
# every reader special-case it (note #3127 §7).
#
# The test above is load-bearing for that: it asserts the body is EXACTLY
# {"status": "ok"} when nothing is stamped, so a well-meaning `or ""` default
# fails it.


@pytest.mark.asyncio
async def test_health_reports_the_build_it_is(client, monkeypatch):
    from backend.app.api import health

    monkeypatch.setattr(health, "FC_VERSION", "2026.08.28.1249")
    monkeypatch.setattr(health, "FC_CHANNEL", "dev")

    body = await (await client.get("/api/health")).get_json()
    assert body == {
        "status": "ok",
        "version": "2026.08.28.1249",
        "channel": "dev",
    }


@pytest.mark.asyncio
async def test_health_keeps_the_channel_out_of_the_version(client, monkeypatch):
    """Rule 149, asserted rather than assumed.

    The tempting shortcut is a `-dev` suffix on the version. The extension's
    comparator parses each dotted segment with `parseInt`, so a suffixed
    segment reads as 0 and every dev build compares equal to every other —
    #2993 exactly. Two separate keys cannot express that mistake.
    """
    from backend.app.api import health

    monkeypatch.setattr(health, "FC_VERSION", "2026.08.28.1249")
    monkeypatch.setattr(health, "FC_CHANNEL", "dev")

    body = await (await client.get("/api/health")).get_json()
    assert body["version"] == "2026.08.28.1249"
    assert "dev" not in body["version"]


@pytest.mark.asyncio
async def test_health_omits_a_channel_it_cannot_name(client, monkeypatch):
    """A locally-built image has a version but no channel. It must not gain an
    empty one — the key's absence is the answer."""
    from backend.app.api import health

    monkeypatch.setattr(health, "FC_VERSION", "2026.08.28.1249")
    monkeypatch.setattr(health, "FC_CHANNEL", "")

    body = await (await client.get("/api/health")).get_json()
    assert body == {"status": "ok", "version": "2026.08.28.1249"}