/**
 * Copyright 2021 Huawei Technologies Co., Ltd
 *
 * 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.
 */

#ifndef MINDSPORE_LITE_TOOLS_OPTIMIZER_PARALLEL_SPLITER_H
#define MINDSPORE_LITE_TOOLS_OPTIMIZER_PARALLEL_SPLITER_H
#include <vector>
#include <string>
#include <unordered_map>
#include "schema/inner/model_generated.h"
#include "utils/utils.h"
#include "tools/optimizer/common/gllo_utils.h"
#include "tools/converter/converter_flags.h"
#include "include/context.h"
#include "include/lite_types.h"
namespace mindspore {
namespace opt {

class Spliter {
 public:
  static Spliter *GetInstance();
  Spliter(const Spliter &) = delete;
  Spliter &operator=(const Spliter &) = delete;

  // update current input node's output. if candidate node has been recorded, we will be ignore it, otherwise record it.
  void UpdateNodeOutputs(const std::string &input_node_name, const AnfNodePtr &candidate_output);

  // update current node's input shapes.
  void UpdateNodeInputShapes(const std::string &node_name, const std::vector<ShapeVector> &input_shapes);

  // update current node's output shapes.
  void UpdateNodeOutputShapes(const std::string &node_name, const std::vector<ShapeVector> &output_shapes);

  std::unordered_map<std::string, std::vector<AnfNodePtr>> graph_node_outputs() const { return graph_node_outputs_; }

  std::unordered_map<std::string, std::vector<ShapeVector>> graph_node_output_shapes() const {
    return graph_node_output_shapes_;
  }

  std::unordered_map<std::string, std::vector<ShapeVector>> graph_node_input_shapes() const {
    return graph_node_input_shapes_;
  }

 private:
  Spliter() = default;
  virtual ~Spliter() = default;

 private:
  std::unordered_map<std::string, std::vector<AnfNodePtr>> graph_node_outputs_;
  std::unordered_map<std::string, std::vector<ShapeVector>> graph_node_output_shapes_;
  std::unordered_map<std::string, std::vector<ShapeVector>> graph_node_input_shapes_;
};
}  // namespace opt
}  // namespace mindspore
#endif  // MINDSPORE_LITE_TOOLS_OPTIMIZER_PARALLEL_SPLITER_H