// Copyright 2023 RisingWave Labs
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

use risingwave_pb::stream_plan::NoOpNode;
use risingwave_storage::StateStore;

use super::ExecutorBuilder;
use crate::error::StreamResult;
use crate::executor::{Executor, NoOpExecutor};
use crate::task::ExecutorParams;

pub struct NoOpExecutorBuilder;

impl_stream_node_body!(NoOp(NoOpNode) => NoOpExecutorBuilder);

impl ExecutorBuilder for NoOpExecutorBuilder {
    type Node = NoOpNode;

    async fn new_boxed_executor(
        params: ExecutorParams,
        _node: &NoOpNode,
        _store: impl StateStore,
    ) -> StreamResult<Executor> {
        let [input]: [_; 1] = params.input.try_into().unwrap();
        Ok((params.info, NoOpExecutor::new(params.actor_context, input)).into())
    }
}
