//*****************************************************************************
// Copyright 2018-2019 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.
//*****************************************************************************

#include <cstdint>

#include "concat.hpp"
#include "exceptions.hpp"
#include "ngraph/op/concat.hpp"
#include "utils/common.hpp"

namespace ngraph
{
    namespace onnx_import
    {
        namespace op
        {
            namespace set_1
            {
                NodeVector concat(const Node& node)
                {
                    NodeVector inputs{node.get_ng_inputs()};
                    std::int64_t axis = node.get_attribute_value<std::int64_t>("axis");

                    size_t valid_axis =
                        common::convert_negative_axis(axis, inputs.at(0)->get_shape().size());

                    ASSERT_VALID_ARGUMENT(node, valid_axis >= 0)
                        << "Incorrect value of axis attribute: " << axis;

                    return {std::make_shared<ngraph::op::Concat>(inputs, valid_axis)};
                }

            } // namespace set_1

        } //namespace op

    } // namespace onnx_import

} // namespace ngraph
