"""L1: free-text interpretation -- rationale capture contract (spec D13, §4.6).

D13 instructs the model to evaluate Altro/Rifiuta/steering free text in context,
act on it, re-ask if ambiguous (instead of defaulting), and record the user's
words in the decision rationale. The actual interpretation is model behavior
enforced by the skill prose + gate, validated at L2; this test pins the RECORDING
contract the gate relies on: free text from "Altro" must round-trip into the
decision rationale and survive persistence, never silently discarded.
"""

from tht.decisions import append_decision, list_decisions


def test_altro_freetext_recorded_in_rationale(tmp_path):
    s = tmp_path / "sess"
    s.mkdir()
    # The gate, on receiving Altro text, appends a decision whose rationale carries
    # the user's words verbatim (not discarded, not paraphrased away).
    append_decision(
        s,
        type="table_promoted",
        subject="phase:4",
        detail="ablazione",
        rationale="Utente (Altro): 'ablazione' va cercato anche in patologia, non solo nel flag",
    )
    decisions = list_decisions(s)
    assert len(decisions) == 1
    assert "patologia" in decisions[0].rationale  # user text preserved
    assert "Altro" in decisions[0].rationale


def test_freetext_survives_persistence_roundtrip(tmp_path):
    s = tmp_path / "sess"
    s.mkdir()
    user_text = "Rifiuto: la join corretta e' su id_episodio, non id_ricovero"
    append_decision(s, type="join_modified", subject="phase:4",
                    detail="t1.id_ricovero", rationale=user_text)
    append_decision(s, type="table_excluded", subject="phase:4",
                    detail="dimessi", rationale="ok")  # a second, unrelated decision
    reloaded = list_decisions(s)
    assert reloaded[0].rationale == user_text  # exact preservation
    assert reloaded[1].rationale == "ok"


def test_multiline_steering_text_preserved(tmp_path):
    s = tmp_path / "sess"
    s.mkdir()
    steering = "Considera solo il 2025.\nEscludi i day-hospital.\nUsa la data di dimissione."
    append_decision(s, type="concept_clarified", subject="phase:1",
                    detail="periodo", rationale=steering)
    assert list_decisions(s)[0].rationale == steering
    # the multi-line steering is intact, including newlines
    assert "\n" in list_decisions(s)[0].rationale


def test_empty_rationale_is_allowed(tmp_path):
    # a decision can legitimately have no free text (e.g. a clean promote).
    s = tmp_path / "sess"
    s.mkdir()
    append_decision(s, type="table_promoted", subject="phase:4", detail="pazienti")
    assert list_decisions(s)[0].rationale == ""