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/*
 * Copyright (c) 2018 Samsung Electronics Co., Ltd. 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.
 */

#ifndef __NEURUN_DUMPER_DOT_DOT_BUILDER_H__
#define __NEURUN_DUMPER_DOT_DOT_BUILDER_H__

#include <sstream>

#include "model/operation/Index.h"
#include "model/operand/Index.h"

#include "model/operation/Node.h"
#include "model/operand/Object.h"

#include "DotNodeInfo.h"
#include "DotOperandInfo.h"

using Node = neurun::model::operation::Node;
using Object = neurun::model::operand::Object;

namespace neurun
{
namespace dumper
{
namespace dot
{

class NodeAttr
{
public:
  NodeAttr() = default;

public:
  void finish();
  NodeAttr &addAttr(const std::string &name, const std::string &attr);

public:
  std::stringbuf *attr_stream() { return _attr_stream.rdbuf(); }

private:
  std::vector<std::pair<std::string, std::string>> _attrs;
  std::stringstream _attr_stream;
};

class DotBuilder
{
public:
  DotBuilder();

public:
  void update(const IDotInfo &dotinfo);

  void writeDot(std::ostream &os);

private:
  void addNode(const IDotInfo &dotinfo);
  void addEdge(const IDotInfo &dotinfo1, const IDotInfo &dotinfo2);

  std::stringstream _dot;
};

} // namespace dot
} // namespace dumper
} // namespace neurun

#endif // __NEURUN_DUMPER_DOT_DOT_BUILDER_H__