import copy
import json
from types import SimpleNamespace

import pytest

from secrets_engine import cli
from secrets_engine.catalog import validate_entry
from secrets_engine.config import Config
from secrets_engine.errors import BackendError, DecisionError
from tests.test_catalog import VALID


def _config(tmp_path):
    return Config(
        catalog_dir=tmp_path,
        policy_dir=tmp_path,
        evidence_dir=tmp_path / "evidence",
        hub_url="",
        bao_addr="http://127.0.0.1:8200",
        topic_id="test-topic",
    )


def _records(tmp_path):
    path = next((tmp_path / "evidence").glob("evidence-*.jsonl"))
    return [json.loads(line) for line in path.read_text().splitlines()]


def _provision_args(entry):
    return SimpleNamespace(
        catalog_id=entry.id,
        stage=entry.stage,
        field="api_token",
        generate=False,
        from_file="/tmp/test-value-file",
        bootstrap_token_file=None,
    )


def test_provision_backend_exception_has_attempt_and_terminal_evidence(
    tmp_path, monkeypatch
):
    entry = validate_entry(copy.deepcopy(VALID))
    monkeypatch.setattr(cli, "get_entry", lambda *_args: entry)
    monkeypatch.setattr(cli, "_require_lane_approval", lambda *_args: None)
    monkeypatch.setattr(cli.OpenBaoClient, "resolve", lambda *_args, **_kwargs: object())
    monkeypatch.setattr(
        cli,
        "provision_from_file",
        lambda *_args, **_kwargs: (_ for _ in ()).throw(
            BackendError("fake-SUPER-SECRET-backend-message")
        ),
    )

    with pytest.raises(BackendError):
        cli.cmd_provision(_config(tmp_path), _provision_args(entry))

    records = _records(tmp_path)
    assert [record["result"] for record in records] == [
        "attempt",
        "failed-BackendError",
    ]
    assert records[-1]["detail"]["approval_status"] == "not-required"
    assert "fake-SUPER-SECRET" not in json.dumps(records)


def test_provision_decision_rejection_is_recorded_before_backend(
    tmp_path, monkeypatch
):
    data = copy.deepcopy(VALID)
    data["approval"] = {
        "model": "decision",
        "decision_ref": "CCR-2026-0001",
    }
    entry = validate_entry(data)
    monkeypatch.setattr(cli, "get_entry", lambda *_args: entry)
    monkeypatch.setattr(
        cli,
        "_require_lane_approval",
        lambda *_args: (_ for _ in ()).throw(DecisionError("not approved")),
    )
    monkeypatch.setattr(
        cli.OpenBaoClient,
        "resolve",
        lambda *_args, **_kwargs: pytest.fail("backend must not be reached"),
    )

    with pytest.raises(DecisionError):
        cli.cmd_provision(_config(tmp_path), _provision_args(entry))

    records = _records(tmp_path)
    assert [record["result"] for record in records] == [
        "attempt",
        "failed-DecisionError",
    ]
    assert records[-1]["detail"]["approval_status"] == "rejected"
    assert records[-1]["detail"]["decision_ref"] == "CCR-2026-0001"


def test_production_handler_fails_closed_before_backend(tmp_path, monkeypatch):
    data = copy.deepcopy(VALID)
    data.update(
        stage="prod",
        approval={"model": "decision", "decision_ref": "CCR-2026-0001"},
    )
    entry = validate_entry(data)
    monkeypatch.setattr(cli, "get_entry", lambda *_args: entry)
    monkeypatch.delenv("SECRETS_ENGINE_UNSAFE_DEMO", raising=False)
    monkeypatch.setattr(
        cli.OpenBaoClient,
        "resolve",
        lambda *_args, **_kwargs: pytest.fail("backend must not be reached"),
    )

    with pytest.raises(DecisionError, match="production action 'provision'"):
        cli.cmd_provision(_config(tmp_path), _provision_args(entry))

    records = _records(tmp_path)
    assert [record["result"] for record in records] == [
        "attempt",
        "failed-DecisionError",
    ]