"""Tests Planungs-KI Phase E — Pfad-QA."""
from planning_exercise_path_builder import _pick_best_path_hit
from planning_exercise_path_qa import apply_llm_path_reorder


def test_pick_best_path_hit_prefers_semantic_score():
    hits = [
        {"id": 1, "title": "Mawashi", "score": 0.9, "semantic_score": 0.1},
        {"id": 2, "title": "Mae Geri", "score": 0.75, "semantic_score": 0.85},
    ]
    chosen = _pick_best_path_hit(hits, set())
    assert chosen["id"] == 2


def test_pick_best_path_hit_skips_used():
    hits = [{"id": 1, "title": "A", "score": 0.5, "semantic_score": 0.5}]
    assert _pick_best_path_hit(hits, {1}) is None


def test_apply_llm_path_reorder_permutation():
    steps = [{"exercise_id": 1}, {"exercise_id": 2}, {"exercise_id": 3}]
    reordered, applied, notes = apply_llm_path_reorder(
        steps,
        {"ordered_step_indices": [0, 2, 1], "sequence_notes": ["Vertiefung vor Anwendung"]},
    )
    assert applied is True
    assert [s["exercise_id"] for s in reordered] == [1, 3, 2]
    assert notes


def test_apply_llm_path_reorder_invalid_ignored():
    steps = [{"exercise_id": 1}, {"exercise_id": 2}]
    reordered, applied, _ = apply_llm_path_reorder(steps, {"ordered_step_indices": [0, 0]})
    assert applied is False
    assert reordered == steps