#pragma once
/////////////////////////////////////////////////////////////////////
// Utilities.h - defines Log class and several template functions  //
//                                                                 //
// Jim Fawcett, CSE776 - Design Patterns, Fall 2017                //
/////////////////////////////////////////////////////////////////////

#include <string>
#include <iostream>
#include <sstream>
#include <vector>

namespace Utilities
{
  class Log
  {
  public:
    static bool logging;
    void set(std::ostream*);
    void doLog(const std::string& logStr);
  private:
    static std::vector<std::ostream*> pipes;
  };

  bool Log::logging = false;
  std::vector<std::ostream*> Log::pipes;

  inline void Log::set(std::ostream* pStrm)
  {
    pipes.push_back(pStrm);
  }

  inline void Log::doLog(const std::string& logMsg)
  {
    if (!logging)
      return;

    for (std::ostream* pStrm : pipes)
      *pStrm << logMsg;
  }

  template<typename T>
  std::string toString(T t)
  {
    std::ostringstream out;
    out << t;
    return out.str();
  }

  inline void putLine(size_t n = 1)
  {
    for (size_t i = 0; i < n; ++i)
      std::cout << "\n";
  }

  template<char ch>
  void title(const std::string& msg, std::ostream& out = std::cout)
  {
    out << "\n  " << msg;
    std::string underline(msg.size() + 2, ch);
    out << "\n " << underline;
  }
}