"""Task A5 — REST message route.

The route consumes `ConversationManager.stream_process_message` and returns
the collected reply plus `ended`/`intent_level`. Lead email is triggered
inside `ConversationManager` when contact info is detected
(contact-driven-lead-email plan) — the route carries no email logic.
"""
from app.main import app  # noqa: F401 — ensure router registration
from app.engine.services import conversation as conv_mod


def test_message_replies_and_ended_flag(client, monkeypatch):
    async def fake_stream(self, sid, content):
        yield {"type": "stream_start"}
        yield {"type": "stream_chunk", "content": "Hi"}
        yield {"type": "stream_chunk", "content": " there"}
        yield {"type": "stream_end"}
        yield {"type": "evaluated", "ended": False, "intent_level": "pending"}

    monkeypatch.setattr(
        conv_mod.ConversationManager, "stream_process_message", fake_stream
    )

    sid = client.post("/api/chat/session", json={}).json()["session_id"]
    r = client.post(
        "/api/chat/message", json={"session_id": sid, "content": "hello"}
    )
    assert r.status_code == 200
    d = r.json()
    assert d["reply"] == "Hi there"
    assert d["ended"] is False


def test_404_unknown_session(client):
    r = client.post(
        "/api/chat/message", json={"session_id": "nope", "content": "x"}
    )
    assert r.status_code == 404


def test_rate_limit_429(client, monkeypatch):
    async def fake_stream(self, sid, content):
        yield {"type": "stream_chunk", "content": "ok"}
        yield {"type": "evaluated", "ended": False, "intent_level": "pending"}

    monkeypatch.setattr(
        conv_mod.ConversationManager, "stream_process_message", fake_stream
    )

    sid = client.post("/api/chat/session", json={}).json()["session_id"]
    for _ in range(30):
        client.post(
            "/api/chat/message", json={"session_id": sid, "content": "x"}
        ).raise_for_status()
    over = client.post(
        "/api/chat/message", json={"session_id": sid, "content": "x"}
    )
    assert over.status_code == 429