"""Direct EU prep pure helpers — F6 surface (no I/O, no instrument_schema)."""
from __future__ import annotations

from core.strategy.direct_eu import (
    CHECKLIST_ID,
    PATH_DIRECT_EU,
    attach_direct_eu_meta,
    direct_eu_prep_path_meta,
    horizon_prep_checklist,
    is_direct_eu_grant,
    never_maps_to_smart_pl,
)
from core.strategy.recommend import recommend_strategy_paths


def test_horizon_prep_checklist_nonempty():
    cl = horizon_prep_checklist()
    assert len(cl) >= 4
    assert any("SMART" in x or "smart" in x.lower() for x in cl)
    assert any("Funding" in x or "Tenders" in x for x in cl)


def test_is_direct_eu_grant_horizon():
    g = {
        "name": "Horizon Europe Cluster 4 call",
        "program": "Horizon Europe",
        "description": "RIA on digital twins",
        "tags": ["horizon"],
    }
    assert is_direct_eu_grant(g) is True


def test_is_direct_eu_grant_eic_family():
    assert is_direct_eu_grant({"family": "EIC", "name": "Accelerator"}) is True
    assert is_direct_eu_grant({"family": "HORIZON_PREP"}) is True
    assert is_direct_eu_grant({"direct_eu": True, "name": "x"}) is True
    assert is_direct_eu_grant({"family": "EUROGRANTY"}) is True


def test_is_direct_eu_grant_not_smart_pl():
    g = {
        "name": "Ścieżka SMART FENG.01 — moduł B+R",
        "program": "FENG",
        "description": "Ścieżka SMART cyfryzacja zazielenienie",
    }
    assert is_direct_eu_grant(g) is False


def test_is_direct_eu_grant_empty_and_none():
    assert is_direct_eu_grant(None) is False
    assert is_direct_eu_grant({}) is False
    assert is_direct_eu_grant("not-a-dict") is False  # type: ignore[arg-type]


def test_never_maps_to_smart_pl_invariant():
    assert never_maps_to_smart_pl() is True
    assert never_maps_to_smart_pl({"family": "HORIZON"}) is True
    assert never_maps_to_smart_pl({"name": "Ścieżka SMART FENG.01"}) is False


def test_attach_direct_eu_meta_on_path():
    p = attach_direct_eu_meta({"id": PATH_DIRECT_EU, "score": 50, "reasons": ["x"]})
    assert p.get("never_use_smart_modules") is True
    assert p.get("checklist")
    assert p.get("checklist_id") == CHECKLIST_ID
    assert p.get("notes")
    assert any("SMART" in n for n in p["notes"])
    assert any("SMART" in r for r in p["reasons"])


def test_attach_direct_eu_meta_skips_other_paths():
    raw = {"id": "national_feng", "score": 1}
    out = attach_direct_eu_meta(raw)
    assert "never_use_smart_modules" not in out
    assert "checklist_id" not in out


def test_direct_eu_prep_path_meta_shape():
    meta = direct_eu_prep_path_meta()
    assert meta["id"] == PATH_DIRECT_EU
    assert meta["never_use_smart_modules"] is True
    assert meta["checklist_id"] == "horizon_prep"
    assert len(meta["checklist"]) >= 4


def test_recommend_wires_direct_eu_meta():
    r = recommend_strategy_paths(goal="deeptech horizon eic")
    eu = next(p for p in r["paths"] if p["id"] == PATH_DIRECT_EU)
    assert eu.get("never_use_smart_modules") is True
    assert eu.get("checklist_id") == CHECKLIST_ID
    assert eu.get("checklist")
    assert float(eu.get("score") or 0) > 40