//*****************************************************************************
// Copyright 2017-2020 Intel Corporation
//
// 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 "ngraph/node.hpp"
#include "ngraph/op/op.hpp"
#include "ngraph/op/util/fused_op.hpp"

namespace ngraph
{
    namespace op
    {
        namespace v0
        {
            /// \brief Calculates an element-wise squared difference between two tensors
            ///
            /// y[i] = (x1[i] - x2[i])^2
            class NGRAPH_API SquaredDifference : public ngraph::op::util::FusedOp
            {
            public:
                static constexpr NodeTypeInfo type_info{"SquaredDifference", 0};
                const NodeTypeInfo& get_type_info() const override { return type_info; }
                SquaredDifference() = default;
                /// \brief Constructs the squared difference operation.
                ///
                /// \param x1 First input tensor
                /// \param x2 Second input tensor
                /// \param auto_broadcast Auto broadcast specification
                SquaredDifference(
                    const Output<Node>& x1,
                    const Output<Node>& x2,
                    const AutoBroadcastSpec& auto_broadcast = AutoBroadcastType::NUMPY);

                bool visit_attributes(AttributeVisitor& visitor) override;
                virtual NodeVector decompose_op() const override;

                virtual std::shared_ptr<Node>
                    clone_with_new_inputs(const OutputVector& new_args) const override;

                const AutoBroadcastSpec& get_autob() const override { return m_autobroadcast; }
                void set_autob(const AutoBroadcastSpec& auto_broadcast)
                {
                    m_autobroadcast = auto_broadcast;
                }

            private:
                AutoBroadcastSpec m_autobroadcast;
            };
        }
        using v0::SquaredDifference;
    } // namespace op
} // namespace ngraph
