/**

 * 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 npu_gru_plugin.cc

 * \brief onnx plugin for npu custom operator npu_gru

 */

#include "onnx_common.h"

#include "op_nn_proto_extend.h"



namespace {

const int OUTPUT_SIZE = 6;

}

namespace domi {

using NodeProto = ge::onnx::NodeProto;



static Status ParseParamsNpuGru(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;

    }

    op_dest.SetAttr("gate_order", "rzh");

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

    op_dest.SetAttr("original_type", "npu::1::NPUGru");

    int input_size = node->input_size();



    op_dest.DynamicInputRegister("x", input_size);

    op_dest.DynamicOutputRegister("y", OUTPUT_SIZE);



    return SUCCESS;

}



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

{

    std::string ori_name, gate_order;

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

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

        return FAILED;

    }

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

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

        return FAILED;

    }

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

    auto data_hx = ge::op::Data((ori_name + "_hx").c_str()).set_attr_index(1);

    auto data_weight_input = ge::op::Data((ori_name + "_weight_input").c_str()).set_attr_index(2);

    auto data_weight_hidden = ge::op::Data((ori_name + "_weight_hidden").c_str()).set_attr_index(3);

    auto data_bias_input = ge::op::Data((ori_name + "_bias_input").c_str()).set_attr_index(4);

    auto data_bias_hidden = ge::op::Data((ori_name + "_bias_hidden").c_str()).set_attr_index(5);

    auto data_seq_length = ge::op::Data((ori_name + "_seq_length").c_str()).set_attr_index(6);

    // data_seq_length is not used in DynamicGRUV2, connect it with identity to drop it

    auto identity = ge::op::Identity((ori_name + "_identity").c_str()).set_input_x(data_seq_length);

    auto dynamic_gru_v2 = ge::op::DynamicGRUV2((ori_name + "_DynamicGRUV2").c_str())

                              .set_input_x(data_x)

                              .set_input_weight_input(data_weight_input)

                              .set_input_weight_hidden(data_weight_hidden)

                              .set_input_bias_input(data_bias_input)

                              .set_input_bias_hidden(data_bias_hidden)

                              .set_input_init_h(data_hx)

                              .set_attr_gate_order(gate_order);



    std::vector<ge::Operator> inputs{data_x,          data_hx,          data_weight_input, data_weight_hidden,

                                     data_bias_input, data_bias_hidden, data_seq_length};

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

    for (size_t i = 0; i < OUTPUT_SIZE; i++) {

        output_indexes.emplace_back(dynamic_gru_v2, std::vector<size_t>{i});

    }

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

    return SUCCESS;

}



// register npu_gru op info to GE

REGISTER_CUSTOM_OP("PartitionedCall")

    .FrameworkType(ONNX)

    .OriginOpType({ge::AscendString("npu::1::NPUGru"), ge::AscendString("ai.onnx::11::NPUGru"),

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

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

                   ge::AscendString("ai.onnx::16::NPUGru"), ge::AscendString("ai.onnx::17::NPUGru"),

                   ge::AscendString("ai.onnx::18::NPUGru")})

    .ParseParamsFn(ParseParamsNpuGru)

    .ParseOpToGraphFn(ParseOpToGraphNpuGru)

    .ImplyType(ImplyType::TVM);

} // namespace domi