"""Tests Planungs-KI Phase C3/E/F — Pfad-Vorschläge."""
from planning_exercise_path_builder import (
    _annotate_roadmap_step,
    _hit_to_path_step,
    _pick_best_path_hit,
)
from planning_progression_roadmap import MajorStep, StageSpecArtifact


def test_pick_next_path_hit_skips_used():
    hits = [{"id": 1, "title": "A", "semantic_score": 0.2}, {"id": 2, "title": "B", "semantic_score": 0.2}, {"id": 3, "title": "C", "semantic_score": 0.2}]
    assert _pick_best_path_hit(hits, {1})["id"] == 2
    assert _pick_best_path_hit(hits, {1, 2, 3}) is None


def test_hit_to_path_step_maps_variant():
    step = _hit_to_path_step(
        {
            "id": 10,
            "title": "Test",
            "score": 0.8,
            "reasons": ["Graph"],
            "suggested_variant_id": 7,
            "suggested_variant_name": "Leicht",
            "variants": [{"id": 7, "variant_name": "Leicht"}],
        }
    )
    assert step["exercise_id"] == 10
    assert step["variant_id"] == 7
    assert step["suggested_variant_name"] == "Leicht"


def test_annotate_roadmap_step_adds_metadata():
    spec = StageSpecArtifact(major_step_index=1, learning_goal="Grundstellung Mae Geri")
    major = MajorStep(index=1, phase="grundlage", learning_goal=spec.learning_goal, consolidates=["m1"])
    step = _annotate_roadmap_step(
        {"exercise_id": 5, "title": "Test", "reasons": ["Bibliothek"]},
        stage_spec=spec,
        major_step=major,
    )
    assert step["roadmap_major_step_index"] == 1
    assert step["roadmap_phase"] == "grundlage"
    assert step["roadmap_match_source"] == "stage_spec"
    assert any("Roadmap:" in r for r in step["reasons"])