from __future__ import annotations

import re
import subprocess
import sys
from pathlib import Path

import pytest

yaml = pytest.importorskip("yaml")

ROOT = Path(__file__).resolve().parents[1]
SCRIPT = ROOT / "scripts" / "check_layer_conformance.py"
DECL = ROOT / "layer.yaml"
INTENT = ROOT / "INTENT.md"


def _run(*args: str) -> subprocess.CompletedProcess[str]:
    return subprocess.run(
        [sys.executable, str(SCRIPT), *args],
        capture_output=True,
        text=True,
    )


def test_declaration_exists_and_declares_engine_pip():
    assert DECL.exists()
    data = yaml.safe_load(DECL.read_text())
    assert data["repository"] == "maturity-engine"
    assert data["layer"] == "engine"
    assert data["role"] == "pip"
    assert data["framework"] == "netkingdom-security-layer-model"
    assert data["standard_version"] == "0.7"
    assert "pep_stance" not in data or not data.get("pep_stance")


def test_frontmatter_agrees_with_layer_yaml():
    text = INTENT.read_text()
    match = re.match(r"^---\n(.*?)\n---\n", text, re.DOTALL)
    assert match
    meta = yaml.safe_load(match.group(1))
    data = yaml.safe_load(DECL.read_text())
    assert str(meta["layer"]).lower() == str(data["layer"]).lower()
    assert str(meta["role"]).lower() == str(data["role"]).lower()


def test_no_tooling_contacts_or_pep():
    data = yaml.safe_load(DECL.read_text())
    assert data["tooling_contacts"] == []
    for entries in data["declared_shapes"].values():
        assert entries == []
    clients = {item["id"] for item in data["non_tooling_clients"]}
    assert "state-hub-work-records" in clients
    assert "sqlite-own-store" in clients


def test_catalog_entry_matches_section_4():
    data = yaml.safe_load(DECL.read_text())
    owns = " ".join(data["catalog_entry"]["owns"])
    assert "graded progression" in owns
    assert "gap register" in owns
    assert "capability readiness" in owns


def test_checker_passes_on_the_real_tree():
    result = _run()
    assert result.returncode == 0, result.stderr


def test_checker_catches_an_openbao_client(tmp_path, monkeypatch):
    import importlib.util

    spec = importlib.util.spec_from_file_location("check_layer_conformance", SCRIPT)
    module = importlib.util.module_from_spec(spec)
    spec.loader.exec_module(module)

    fake_src = tmp_path / "src" / "maturity_engine"
    fake_src.mkdir(parents=True)
    (fake_src / "oops.py").write_text("import hvac\n")
    monkeypatch.setattr(module, "SRC", fake_src)
    hits = module.scan()
    assert hits
    assert hits[0][1] == "hvac"