import json
from pathlib import Path

import pytest

DOCS = Path(__file__).resolve().parents[1] / "docs"
FMAP = DOCS / "ERP_FISCAL_FIELD_MAP_V1.json"
pytestmark = pytest.mark.skipif(not FMAP.exists(), reason="field map artifact not generated")

WRITABLE = {"IPI", "EX_TIPI", "CEST"}


def test_only_proven_product_fields_are_write_candidates():
    fields = json.loads(FMAP.read_text(encoding="utf-8"))["fields"]
    for f in fields:
        if f["write_candidate"]:
            assert f["table"] == "C000025" and f["field"] in WRITABLE and f["confidence"] == "HIGH"
        if f["usage_class"] in ("LEGACY_UNUSED", "UNKNOWN") or f["confidence"] == "LOW":
            assert not f["write_candidate"]


def test_every_context_input_has_a_known_status():
    doc = json.loads((DOCS / "FISCAL_CONTEXT_REQUIREMENTS_V1.json").read_text(encoding="utf-8"))
    allowed = {"AVAILABLE_FROM_ERP", "AVAILABLE_FROM_AGENT_CONFIG", "AVAILABLE_FROM_JOB", "MISSING"}
    for dom in doc["domains"].values():
        assert {i["status"] for i in dom["inputs"].values()} <= allowed