/**

 * Copyright (c) 2025 Huawei Technologies Co., Ltd.

 * This program is free software, you can redistribute it and/or modify it under the terms and conditions of

 * CANN Open Software License Agreement Version 2.0 (the "License").

 * Please refer to the License for details. You may not use this file except in compliance with the License.

 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED,

 * INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR A PARTICULAR PURPOSE.

 * See LICENSE in the root of the software repository for the full text of the License.

 */



/*!

 * \file int8_dequantize_plugin.cc

 * \brief

 */

#include "onnx_common.h"

#include "op_nn_proto_extend.h"



using namespace std;

using namespace ge;

using ge::Operator;

namespace domi {

using NodeProto = ge::onnx::NodeProto;

using OpDesc = std::shared_ptr<ge::OpDesc>;



static Status ParseParamsInt8Dequantize(const Message* op_src, ge::Operator& op_dest)

{

    const NodeProto* node = dynamic_cast<const NodeProto*>(op_src);

    if (nullptr == node) {

        OP_LOGE("ParseParamsInt8Dequantize", "Dynamic cast op_src to NodeProto failed.");

        return FAILED;

    }



    float scale = 0.f;

    float offset = 0.f;

    for (auto& attr : node->attribute()) {

        if (attr.name().find("scale") != std::string::npos) {

            scale = attr.f();

        }

        if (attr.name().find("zero_point") != std::string::npos) {

            offset = static_cast<float>(attr.i());

        }

    }



    op_dest.DynamicInputRegister("x", 1);

    op_dest.DynamicOutputRegister("y", 1);

    op_dest.SetAttr("original_type", "ai.onnx::11::Int8Dequantize");

    op_dest.SetAttr("scale", scale);

    op_dest.SetAttr("offset", offset);

    op_dest.SetAttr("name", node->name());

    return SUCCESS;

}



static Status ParseOpToGraphInt8Dequantize(const ge::Operator& op, Graph& graph)

{

    std::string ori_name;

    if (op.GetAttr("name", ori_name) != SUCCESS) {

        OP_LOGE(GetOpName(op).c_str(), "get name from op failed.");

        return FAILED;

    }



    float scale = 0.f;

    float offset = 0.f;

    ge::Operator::OpListInt maxpool_ksize = {1, 1, 1, 1};

    ge::Operator::OpListInt maxpool_strides = {1, 1, 1, 1};

    op.GetAttr("scale", scale);

    op.GetAttr("offset", offset);

    auto data1 = op::Data((ori_name + "_data1").c_str()).set_attr_index(0);

    auto ascend_op = op::AscendAntiQuant((ori_name + "_Int8DeqAscendAntiquant").c_str())

                         .set_input_x(data1)

                         .set_attr_scale(scale)

                         .set_attr_offset(offset)

                         .set_attr_dtype(DT_FLOAT16);

    auto maxpool = op::MaxPool((ori_name + "_Int8DeqAscendMaxpool").c_str())

                       .set_input_x(ascend_op)

                       .set_attr_ksize(maxpool_ksize)

                       .set_attr_strides(maxpool_strides)

                       .set_attr_padding("VALID")

                       .set_attr_data_format("NCHW");

    std::vector<ge::Operator> inputs = {data1};

    std::vector<std::pair<ge::Operator, std::vector<size_t>>> output_indexs;



    output_indexs.emplace_back(maxpool, std::vector<size_t>{0});

    graph.SetInputs(inputs).SetOutputs(output_indexs);

    return SUCCESS;

}



REGISTER_CUSTOM_OP("PartitionedCall")

    .FrameworkType(ONNX)

    .OriginOpType({ge::AscendString("ai.onnx::8::Int8Dequantize"), ge::AscendString("ai.onnx::9::Int8Dequantize"),

                   ge::AscendString("ai.onnx::10::Int8Dequantize"), ge::AscendString("ai.onnx::11::Int8Dequantize"),

                   ge::AscendString("ai.onnx::12::Int8Dequantize"), ge::AscendString("ai.onnx::13::Int8Dequantize"),

                   ge::AscendString("ai.onnx::14::Int8Dequantize"), ge::AscendString("ai.onnx::15::Int8Dequantize"),

                   ge::AscendString("ai.onnx::16::Int8Dequantize")})

    .ParseParamsFn(ParseParamsInt8Dequantize)

    .ParseOpToGraphFn(ParseOpToGraphInt8Dequantize)

    .ImplyType(ImplyType::TVM);

} // namespace domi