/**

 * 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 unique_plugin.cc

 * \brief onnx plugin for Unique operator, but not all functions are supported.

 *        Only support same case with UnqiueWithCountsAndSorting, so onnx's axis attribute

 *        and indices output are currently unavailable for use.

 */

#include "onnx_common.h"

#include "op_nn_proto_extend.h"



namespace domi {

using NodeProto = ge::onnx::NodeProto;



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

{

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

    if (node == nullptr) {

        OP_LOGE(GetOpName(op_dest).c_str(), "dynamic cast op_src to NodeProto failed.");

        return FAILED;

    }



    bool sorted = true;

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

        if (attr.name() == "sorted" && attr.type() == ge::onnx::AttributeProto::INT && attr.i() == 0) {

            sorted = false;

        }

    }

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

    op_dest.SetAttr("sorted", sorted);

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



    auto input_size = node->input_size();

    auto output_size = node->output_size();

    op_dest.DynamicInputRegister("x", input_size);

    op_dest.DynamicOutputRegister("y", output_size);

    return SUCCESS;

}



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

{

    bool sorted;

    std::string name;



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

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

        return FAILED;

    }

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

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

        return FAILED;

    }



    auto data_x = ge::op::Data((name + "_x").c_str()).set_attr_index(0);

    auto unique_with_counts_and_sorting = ge::op::UniqueWithCountsAndSorting(

        (name + "_UniqueWithCountsAndSorting").c_str());

    unique_with_counts_and_sorting.set_input_x(data_x)

        .set_attr_return_inverse(true)

        .set_attr_return_counts(true)

        .set_attr_sorted(sorted);



    auto shape = ge::op::Shape((name + "_shape").c_str()).set_input_x_by_name(unique_with_counts_and_sorting, "y");

    auto empty = ge::op::Empty((name + "_empty").c_str())

                     .set_input_shape(shape)

                     .set_attr_dtype(ge::DT_INT64)

                     .set_attr_init(true);



    std::vector<ge::Operator> inputs{data_x};

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

    outputs.emplace_back(unique_with_counts_and_sorting, std::vector<size_t>{0});

    outputs.emplace_back(empty, std::vector<size_t>{0});

    outputs.emplace_back(unique_with_counts_and_sorting, std::vector<size_t>{1});

    outputs.emplace_back(unique_with_counts_and_sorting, std::vector<size_t>{2});



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

    return SUCCESS;

}



// register Unique op info to GE

REGISTER_CUSTOM_OP("PartitionedCall")

    .FrameworkType(ONNX)

    .OriginOpType({ge::AscendString("ai.onnx::11::Unique"), ge::AscendString("ai.onnx::12::Unique"),

                   ge::AscendString("ai.onnx::13::Unique"), ge::AscendString("ai.onnx::14::Unique"),

                   ge::AscendString("ai.onnx::15::Unique"), ge::AscendString("ai.onnx::16::Unique"),

                   ge::AscendString("ai.onnx::17::Unique"), ge::AscendString("ai.onnx::18::Unique")})

    .ParseParamsFn(ParseParamsUnique)

    .ParseOpToGraphFn(ParseOpToGraphUnique)

    .ImplyType(ImplyType::TVM);

} // namespace domi