# `client` fixture from conftest (temp SQLite + overrides chat_rest.async_session).


def test_session_creates_new(client):
    r = client.post("/api/chat/session", json={})
    assert r.status_code == 200
    d = r.json()
    assert "session_id" in d and d["is_new"] is True and d["ended"] is False


def test_session_resume_active(client):
    sid = client.post("/api/chat/session", json={}).json()["session_id"]
    r = client.post("/api/chat/session", json={"session_id": sid})
    assert r.json()["is_new"] is False


def test_history_new_session_empty(client):
    sid = client.post("/api/chat/session", json={}).json()["session_id"]
    r = client.get(f"/api/chat/{sid}/messages")
    assert r.status_code == 200 and r.json() == []


def test_history_404_unknown_sid(client):
    assert client.get("/api/chat/nope/messages").status_code == 404


def test_history_rejects_non_app_session(client):
    # widget-source conversations are not readable via this public endpoint
    # (narrow the read surface to app only).
    import asyncio
    from app.engine.routes import chat_rest
    from app.engine.services.conversation import ConversationManager
    from app.engine.models import ConversationSource

    async def _make_widget():
        async with chat_rest.async_session() as db:
            mgr = ConversationManager(db)
            c = await mgr.create_conversation(source=ConversationSource.widget)
            return c.session_id

    sid = asyncio.run(_make_widget())
    assert client.get(f"/api/chat/{sid}/messages").status_code == 404