// Copyright 2022 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 std::sync::Arc;

use risingwave_pb::stream_plan::SortNode;

use super::*;
use crate::common::table::state_table::StateTableBuilder;
use crate::executor::eowc::{SortExecutor, SortExecutorArgs};

pub struct SortExecutorBuilder;

impl ExecutorBuilder for SortExecutorBuilder {
    type Node = SortNode;

    async fn new_boxed_executor(
        params: ExecutorParams,
        node: &Self::Node,
        store: impl StateStore,
    ) -> StreamResult<Executor> {
        let [input]: [_; 1] = params.input.try_into().unwrap();
        let vnodes = Arc::new(params.vnode_bitmap.expect("vnodes not set for sort"));
        let state_table = StateTableBuilder::new(node.get_state_table()?, store, Some(vnodes))
            .enable_preload_all_rows_by_config(&params.config)
            .build()
            .await;
        let exec = SortExecutor::new(SortExecutorArgs {
            actor_ctx: params.actor_context,
            schema: params.info.schema.clone(),
            input,
            buffer_table: state_table,
            chunk_size: params.config.developer.chunk_size,
            sort_column_index: node.sort_column_index as _,
        });
        Ok((params.info, exec).into())
    }
}
