// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 <fmt/core.h>

#include "common/EasyAssert.h"
#include "common/OpContext.h"
#include "common/Types.h"
#include "common/Vector.h"
#include "exec/expression/Expr.h"
#include "segcore/SegmentInterface.h"

namespace milvus {
namespace exec {

class PhyLogicalUnaryExpr : public Expr {
 public:
    PhyLogicalUnaryExpr(
        const std::vector<std::shared_ptr<Expr>>& input,
        const std::shared_ptr<const milvus::expr::LogicalUnaryExpr>& expr,
        const std::string& name,
        milvus::OpContext* op_ctx)
        : Expr(DataType::BOOL, std::move(input), name, op_ctx), expr_(expr) {
    }

    void
    Eval(EvalCtx& context, VectorPtr& result) override;

    void
    MoveCursor() override {
        if (!has_offset_input_) {
            inputs_[0]->MoveCursor();
        }
    }

    bool
    SupportOffsetInput() override {
        return inputs_[0]->SupportOffsetInput();
    }

    std::string
    ToString() const override {
        return fmt::format("{}", expr_->ToString());
    }

    bool
    IsSource() const override {
        return false;
    }

    std::optional<milvus::expr::ColumnInfo>
    GetColumnInfo() const override {
        return std::nullopt;
    }

    bool
    CanExecuteAllAtOnce() const override {
        return inputs_[0]->CanExecuteAllAtOnce();
    }

    void
    SetExecuteAllAtOnce() override {
        inputs_[0]->SetExecuteAllAtOnce();
    }

 private:
    std::shared_ptr<const milvus::expr::LogicalUnaryExpr> expr_;
};

}  //namespace exec
}  // namespace milvus
