/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015-2024 Advanced Micro Devices, Inc. All rights reserved.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */
#include <migraphx/onnx/op_parser.hpp>
#include <migraphx/instruction.hpp>
#include <migraphx/ranges.hpp>
#include <migraphx/make_op.hpp>
#include <migraphx/tune_axis.hpp>
#include <migraphx/onnx/quantize_dequantize_linear.hpp>

namespace migraphx {
inline namespace MIGRAPHX_INLINE_NS {
namespace onnx {

struct parse_dequantizelinear : op_parser<parse_dequantizelinear>
{
    std::vector<op_desc> operators() const { return {{"DequantizeLinear"}}; }

    instruction_ref parse(const op_desc& opd,
                          const onnx_parser& /*parser*/,
                          const onnx_parser::node_info& info,
                          std::vector<instruction_ref> args) const
    {
        if(args.size() < 2 or args.size() > 3)
        {
            MIGRAPHX_THROW("DequantizeLinear: must have either 2 or 3 inputs, " +
                           std::to_string(args.size()) + " inputs provided");
        }

        if(args.size() == 3)
        {
            if(args[0]->get_shape().type() != args[2]->get_shape().type())
                MIGRAPHX_THROW("DequantizeLinear: x and y_zero_point must be of same type");

            if(args[1]->get_shape().lens() != args[2]->get_shape().lens())
            {
                MIGRAPHX_THROW("DequantizeLinear: y_scale and y_zero_point shape mismatch. "
                               "Provided y_scale "
                               "shape: " +
                               to_string_range(args[1]->get_shape().lens()) +
                               ", provided y_zero_point shape: " +
                               to_string_range(args[2]->get_shape().lens()));
            }
        }

        int axis = 1;
        if(contains(info.attributes, "axis"))
            axis = info.attributes.at("axis").i();

        int block_size = 0;
        if(contains(info.attributes, "block_size"))
            block_size = info.attributes.at("block_size").i();

        args = transform_quantize_dequantize_linear_inputs(
            info, opd.onnx_name, block_size, axis, args);

        return info.add_instruction(make_op("dequantizelinear"), args);
    }
};

} // namespace onnx
} // namespace MIGRAPHX_INLINE_NS
} // namespace migraphx