#include "Node.hpp"

namespace muz
{
  /*explicit*/ Node::Node(NodeType type,
                          std::string const& value)
    : m_type { type }
    , m_value { value }
  {
  }

  /*virtual*/ Node::~Node()
  {
  }

  void Node::add_child(std::shared_ptr<Node> child)
  {
    m_children.push_back(child);
  }

  std::shared_ptr<Node> Node::child(size_t index) const
  {
    if (index >= m_children.size())
      {
        throw node_error {"cannot get node child: bad index"};
      }

    return m_children[index];
  }

  std::string Node::string() const
  {
    std::stringstream ss;
    ss << NodeTypeStr[type()] + strlen("NODE_");

    if (m_value.empty() == false)
      {
        ss << "[" << m_value << "]";
      }

    if (m_children.empty() == false)
      {
        std::string sep;

        ss << "(";
        for (auto& c: m_children)
          {
            ss << sep << c->string();
            sep = ",";
          }
        ss << ")";
      }

    return ss.str();
  }
}