from types import SimpleNamespace

from sqlmodel import Session, SQLModel, create_engine

from backend.app.services import action_execution
from backend.app.services.action_execution import approval_execution_supported
from backend.app.services.action_registry import (
    ACTION_RISK,
    ACTIONS,
    action_default_target,
)
from backend.app.services.privatemuse_webhook_repair import (
    PrivateMuseWebhookRepair,
    _ENDPOINT,
    _REPAIR_SCRIPT,
)


class FakeResponse:
    def __init__(self, payload):
        self.payload = payload

    def json(self):
        return self.payload


class FakePortainer:
    def __init__(self, exit_code=0):
        self.exit_code = exit_code
        self.calls = []

    def get_container_status(self, name):
        assert name == "gitea-deploy-control"
        return {
            "status": "ok",
            "container": {
                "id": "controller-id",
                "name": "gitea-deploy-control",
                "state": "running",
            },
        }

    def _config(self):
        return SimpleNamespace(endpoint_id="3")

    def _request(self, method, path, **kwargs):
        self.calls.append((method, path, kwargs))
        if path.endswith("/containers/controller-id/exec"):
            return FakeResponse({"Id": "exec-webhook"})
        if path.endswith("/exec/exec-webhook/start"):
            return FakeResponse({})
        if path.endswith("/exec/exec-webhook/json"):
            return FakeResponse({"Running": False, "ExitCode": self.exit_code})
        raise AssertionError(path)


def test_privatemuse_webhook_repair_is_fixed_high_risk_typed_action():
    action = "deployment.webhook.repair_privatemuse"
    assert action in ACTIONS
    assert ACTION_RISK[action] == "high"
    assert action_default_target(action) == "jens/privatemuse"
    assert approval_execution_supported(action) is True


def test_privatemuse_webhook_repair_executes_only_fixed_contract():
    fake = FakePortainer()

    result = PrivateMuseWebhookRepair(fake).run()

    assert result == {
        "status": "repaired",
        "repository": "jens/privatemuse",
        "endpoint": _ENDPOINT,
        "branch": "main",
        "event": "push",
    }
    command = fake.calls[0][2]["json"]["Cmd"]
    assert command[:3] == ["python3", "-c", _REPAIR_SCRIPT]
    assert command[3:] == ["jens/privatemuse", _ENDPOINT]


def test_privatemuse_webhook_repair_script_never_returns_credentials():
    assert "runner_guard_admin_token" in _REPAIR_SCRIPT
    assert 'secret_root = Path("/controller-config/webhook-secrets")' in _REPAIR_SCRIPT
    assert 'secret_path = secret_root / "jens__privatemuse"' in _REPAIR_SCRIPT
    assert "secretMaterialReturned" not in _REPAIR_SCRIPT
    assert 'print(f"privatemuse_runnerless_webhook_ready hook_id={hook_id}"' in _REPAIR_SCRIPT
    assert "print(secret" not in _REPAIR_SCRIPT
    assert "print(token" not in _REPAIR_SCRIPT


def test_privatemuse_webhook_repair_proves_effective_controller_reachability():
    assert "gitea_config_path" not in _REPAIR_SCRIPT
    assert '"docker", "exec", "Gitea"' in _REPAIR_SCRIPT
    assert '"http://198.19.0.1:1299/health"' in _REPAIR_SCRIPT
    assert 'health_payload.get("status") != "ok"' in _REPAIR_SCRIPT
    assert 'health_payload.get("protocolVersion") != "itworx-controller-request/v2"' in _REPAIR_SCRIPT


def test_privatemuse_webhook_repair_is_fail_closed_and_non_destructive():
    assert 'repository != "jens/privatemuse"' in _REPAIR_SCRIPT
    assert 'project.get("branch") != "main"' in _REPAIR_SCRIPT
    assert '"Managed validation / full (push)"' in _REPAIR_SCRIPT
    assert 'url.endswith("/v1/gitea/push/jens/privatemuse")' in _REPAIR_SCRIPT
    assert "len(exact) > 1 or semantic_other" in _REPAIR_SCRIPT
    assert 'request("PATCH", f"/repos/Jens/PrivateMuse/hooks/{hook_id}", payload)' in _REPAIR_SCRIPT
    assert 'request(\n        "POST",\n        "/repos/Jens/PrivateMuse/hooks",' in _REPAIR_SCRIPT
    for forbidden in (
        "docker restart",
        "docker stop",
        "docker rm",
        "docker compose",
        'request("DELETE"',
    ):
        assert forbidden not in _REPAIR_SCRIPT


def test_privatemuse_webhook_repair_maps_validation_failures():
    result = PrivateMuseWebhookRepair(FakePortainer(exit_code=34)).run()

    assert result == {
        "status": "validation_failed",
        "reason": "PrivateMuse has ambiguous or stale runnerless webhook endpoints",
    }


def test_privatemuse_webhook_repair_rejects_any_other_action_target():
    result = action_execution.execute_governed_action(
        None,  # type: ignore[arg-type]
        action="deployment.webhook.repair_privatemuse",
        target="jens/not-privatemuse",
        source="chatgpt-mcp",
        risk="high",
        reason="Regression test for exact-target enforcement.",
        original_policy_decision="allowed",
    )

    assert result["success"] is False
    assert result["result"] == "blocked"
    assert result["message"] == "PrivateMuse webhook repair accepts only jens/privatemuse."


def test_privatemuse_webhook_repair_dispatches_fixed_executor(monkeypatch, tmp_path):
    engine = create_engine(f"sqlite:///{tmp_path / 'webhook-action.db'}")
    SQLModel.metadata.create_all(engine)

    class FakeRepair:
        def run(self):
            return {
                "status": "repaired",
                "repository": "jens/privatemuse",
                "endpoint": _ENDPOINT,
                "branch": "main",
                "event": "push",
            }

    import backend.app.services.privatemuse_webhook_repair as repair_module

    monkeypatch.setattr(repair_module, "PrivateMuseWebhookRepair", FakeRepair)

    with Session(engine) as session:
        result = action_execution.execute_governed_action(
            session,
            action="deployment.webhook.repair_privatemuse",
            target="jens/privatemuse",
            source="chatgpt-mcp",
            risk="high",
            reason="Repair the fixed PrivateMuse runnerless hook.",
            original_policy_decision="approval_required",
        )

    assert result["success"] is True
    assert result["status"] == "success"
    assert result["policyDecision"] == "allowed"
    assert result["originalPolicyDecision"] == "approval_required"
    assert result["jobId"].startswith("job-")
    assert result["auditId"].startswith("audit-")