import pytest

import app.npc as npc
from app.ollama_client import ModelError

LOG = {
    "player": {"name": "Aldric", "race_id": "human", "calling_id": "sellsword", "luck_descriptor": "kind"},
    "location": {"id": "greywater_docks", "name": "Greywater Docks"},
    "party": [], "recent_events": [], "established_facts": [],
    "active_quests": [], "humiliations": [],
}
FENN = {"id": "fenn", "name": "Fenn", "persona": "A clerk.",
        "knowledge": ["The ledger is gone."], "capabilities": {}}


def test_run_returns_prose_and_logs(monkeypatch):
    seen = {}

    def fake_chat(model, messages, options, *, think=None):
        seen.update(messages=messages, think=think)
        return 'Aye. [MOVE: reveal(varrell_twins)] [FACT: the ledger is gone]'

    logs = []
    monkeypatch.setattr(npc, "load_npc", lambda i: FENN)
    monkeypatch.setattr(npc.ollama_client, "chat", fake_chat)
    monkeypatch.setattr(npc.call_log, "record", lambda **kw: logs.append(kw))

    out = npc.run(LOG, "fenn", -10, ["reveal(varrell_twins)", "refuse"], "What happened?")
    assert out.startswith("Aye.")
    # persona + knowledge reached the model; utterance is present
    user_msg = seen["messages"][1]["content"]
    assert "A clerk." in user_msg and "The ledger is gone." in user_msg
    assert "What happened?" in user_msg
    assert seen["think"] is False
    assert logs and logs[0]["ok"] is True and logs[0]["role"] == "npc"


def test_run_unknown_npc_raises(monkeypatch):
    monkeypatch.setattr(npc, "load_npc", lambda i: None)
    with pytest.raises(npc.UnknownNpc):
        npc.run(LOG, "nobody", 0, [], "hi")


def test_run_logs_failure_and_reraises(monkeypatch):
    monkeypatch.setattr(npc, "load_npc", lambda i: FENN)

    def boom(*a, **k):
        raise ModelError("down")

    logs = []
    monkeypatch.setattr(npc.ollama_client, "chat", boom)
    monkeypatch.setattr(npc.call_log, "record", lambda **kw: logs.append(kw))
    with pytest.raises(ModelError):
        npc.run(LOG, "fenn", 0, [], "hi")
    assert logs and logs[0]["ok"] is False