// Copyright 2026 The Erigon Authors
// This file is part of Erigon.
//
// Erigon is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Erigon is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with Erigon. If not, see <http://www.gnu.org/licenses/>.

package execution_client

import (
	"errors"

	"github.com/erigontech/erigon/execution/engineapi/engine_helpers"
	"github.com/erigontech/erigon/execution/execmodule/chainreader"
	"github.com/erigontech/erigon/rpc"
)

// IsUnknownPayloadError reports an unknown-payload result from local or remote execution clients.
func IsUnknownPayloadError(err error) bool {
	if errors.Is(err, chainreader.ErrUnknownPayload) {
		return true
	}
	var rpcErr rpc.Error
	return errors.As(err, &rpcErr) && rpcErr.ErrorCode() == engine_helpers.UnknownPayloadErr.Code
}
