import pytest
from types import SimpleNamespace

from secrets_engine.catalog import validate_entry
from secrets_engine.cli import _require_lane_approval
from secrets_engine.decisions import Decision, require_approved, resolve_decision
from secrets_engine.errors import DecisionError

from tests.test_catalog import VALID


def _approved(model="decision"):
    d = dict(VALID, approval={"model": model, "decision_ref": "x"})
    return validate_entry(d)


def test_bootstrap_only_needs_no_decision():
    e = validate_entry(dict(VALID, approval={"model": "bootstrap-only"}))
    require_approved(e, None)  # must not raise


def test_unapproved_decision_refused():
    e = _approved()
    d = Decision(id="d", title="t", status="pending", superseded_by=None, source="hub")
    with pytest.raises(DecisionError):
        require_approved(e, d)


def test_superseded_decision_refused():
    e = _approved()
    d = Decision(id="d", title="t", status="resolved", superseded_by="d2", source="hub")
    with pytest.raises(DecisionError):
        require_approved(e, d)


def test_approved_decision_passes():
    e = _approved()
    d = Decision(id="d", title="t", status="resolved", superseded_by=None, source="hub")
    require_approved(e, d)  # must not raise


def test_local_fixture_resolves(tmp_path):
    (tmp_path / ".decisions").mkdir()
    (tmp_path / ".decisions" / "myref.yaml").write_text(
        "id: myref\ntitle: t\nstatus: resolved\nsuperseded_by: null\n"
    )
    d = resolve_decision(hub_url="http://127.0.0.1:1", repo_root=tmp_path, decision_ref="myref")
    assert d.source == "local-fixture"
    assert d.is_approved()


def test_missing_decision_raises(tmp_path):
    with pytest.raises(DecisionError):
        resolve_decision(hub_url="http://127.0.0.1:1", repo_root=tmp_path, decision_ref="nope")


def test_privileged_lane_helper_fails_closed_without_decision(tmp_path, monkeypatch):
    import secrets_engine.cli as cli

    monkeypatch.setattr(cli, "repo_root", lambda: tmp_path)
    with pytest.raises(DecisionError):
        _require_lane_approval(SimpleNamespace(hub_url=""), _approved())


def test_privileged_lane_helper_accepts_local_approval(tmp_path, monkeypatch):
    import secrets_engine.cli as cli

    (tmp_path / ".decisions").mkdir()
    (tmp_path / ".decisions" / "x.yaml").write_text(
        "id: x\ntitle: approved\nstatus: resolved\nsuperseded_by: null\n"
    )
    monkeypatch.setattr(cli, "repo_root", lambda: tmp_path)
    decision = _require_lane_approval(SimpleNamespace(hub_url=""), _approved())
    assert decision.id == "x"


def test_production_action_fails_closed_before_legacy_decision(monkeypatch):
    import secrets_engine.cli as cli

    entry = validate_entry(dict(VALID, stage="prod", approval={"model": "bootstrap-only"}))
    cfg = SimpleNamespace(hub_url="http://127.0.0.1:8000", bao_addr="http://127.0.0.1:8200")
    monkeypatch.delenv("SECRETS_ENGINE_UNSAFE_DEMO", raising=False)
    with pytest.raises(DecisionError, match="production action 'apply'"):
        _require_lane_approval(cfg, entry, "apply")


def test_production_demo_requires_all_three_safety_conditions(tmp_path, monkeypatch):
    import secrets_engine.cli as cli

    (tmp_path / ".decisions").mkdir()
    (tmp_path / ".decisions" / "x.yaml").write_text(
        "id: x\ntitle: approved\nstatus: resolved\nsuperseded_by: null\n"
    )
    entry = validate_entry(
        dict(VALID, stage="prod", approval={"model": "decision", "decision_ref": "x"})
    )
    monkeypatch.setattr(cli, "repo_root", lambda: tmp_path)
    monkeypatch.setenv("SECRETS_ENGINE_UNSAFE_DEMO", "1")

    allowed = SimpleNamespace(hub_url="", bao_addr="http://127.0.0.1:8200")
    assert _require_lane_approval(allowed, entry, "apply").id == "x"

    for cfg in (
        SimpleNamespace(hub_url="http://127.0.0.1:8000", bao_addr="http://127.0.0.1:8200"),
        SimpleNamespace(hub_url="", bao_addr="https://bao.example.test"),
    ):
        with pytest.raises(DecisionError, match="live production remains disabled"):
            _require_lane_approval(cfg, entry, "apply")