// Copyright (c) 2019 PaddlePaddle Authors. All Rights Reserved.
//
// 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 "lite/core/subgraph_bridge_registry.h"
#include "lite/kernels/apu/bridges/graph.h"
#include "lite/kernels/apu/bridges/utility.h"

namespace paddle {
namespace lite {
namespace subgraph {
namespace apu {

int ElementwiseConverter(void* ctx, OpLite* op, KernelBase* kernel) {
  CHECK(ctx != nullptr);
  CHECK(op != nullptr);
  auto graph = static_cast<Graph*>(ctx);
  auto model = graph->model();
  auto op_info = op->op_info();
  auto op_type = op_info->Type();
  auto scope = op->scope();
  VLOG(3) << "[APU] Converting " + op_type + "...";

  // Get input and output vars and op attributes
  auto x_name = op_info->Input("X").front();
  auto x = scope->FindMutableTensor(x_name);
  auto x_dims = x->dims();

  auto y_name = op_info->Input("Y").front();
  auto y = scope->FindMutableTensor(y_name);
  auto y_dims = y->dims();

  auto out_name = op_info->Output("Out").front();
  auto out = scope->FindMutableTensor(out_name);
  auto out_dims = out->dims();
  auto axis = op_info->GetAttr<int>("axis");

  // Act node
  if (op_type == "fusion_elementwise_add_activation" ||
      op_type == "fusion_elementwise_sub_activation" ||
      op_type == "fusion_elementwise_mul_activation" ||
      op_type == "fusion_elementwise_div_activation") {
    auto act_type = op_info->GetAttr<std::string>("act_type");
  }

  return REBUILD_WHEN_SHAPE_CHANGED;
}

}  // namespace apu
}  // namespace subgraph
}  // namespace lite
}  // namespace paddle

REGISTER_SUBGRAPH_BRIDGE(elementwise_add,
                         kAPU,
                         paddle::lite::subgraph::apu::ElementwiseConverter);
REGISTER_SUBGRAPH_BRIDGE(elementwise_mul,
                         kAPU,
                         paddle::lite::subgraph::apu::ElementwiseConverter);