// Copyright 2023 PingCAP, Inc.
//
// 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.

#pragma once

#include <Debug/MockExecutor/ExecutorBinder.h>

namespace DB::mock
{
class LimitBinder : public ExecutorBinder
{
public:
    LimitBinder(size_t & index_, const DAGSchema & output_schema_, size_t limit_)
        : ExecutorBinder(index_, "limit_" + std::to_string(index_), output_schema_)
        , limit(limit_)
    {}

    bool toTiPBExecutor(
        tipb::Executor * tipb_executor,
        int32_t collator_id,
        const MPPInfo & mpp_info,
        const Context & context) override;

    void columnPrune(std::unordered_set<String> & used_columns) override;

private:
    size_t limit;
};

ExecutorBinderPtr compileLimit(ExecutorBinderPtr input, size_t & executor_index, ASTPtr limit_expr);
} // namespace DB::mock