///////////////////////////////////////////////////////////////////
// MT3Q3.cpp - Copy constructor for class with reference member  //
//                                                               //
// Jim Fawcett, CSE687 - OOD Midterm, Spring 2013                //
///////////////////////////////////////////////////////////////////

#include <iostream>
#include <fstream>
#include <vector>
#include <string>
#include "../MTutility/MTutility.h"

typedef std::vector<std::string> Characters;

class Y { 
public:
  Y(Characters chars) : baseChars(chars) {}
  Characters& characters()
  {
    return baseChars;
  }
private:
  Characters baseChars;
};

class X : public Y
{
public:
  X(const Characters& chrs, const Characters& baseChrs, std::ostream& out=std::cout) : Y(baseChrs), stuff(chrs), out_(out) {}
  X(const X& x) : Y(x), stuff(x.stuff), out_(x.out_) {}  // this is what compiler generated cctor does
  X& operator=(const X& x)                               // compiler can't generate assignment due to reference member
  {
    if(this == &x) return *this;
    static_cast<Y&>(*this) = x;
    // can't assign reference member out_
    stuff = x.stuff;
    return *this;
  }
  void write() 
  {
    out_ << "\n ";
    for(auto character : stuff)
    {
      out_ << " " << character; 
    }
    out_ << "\n ";
    for(auto character : characters())
    {
      out_ << " " << character;
    }
  }
private:
  std::ostream& out_;
  std::vector<std::string> stuff;
};

int main()
{
  Title("MT3Q3 - Copy Ctor for class with Reference member");
  Characters threeStooges;
  threeStooges.push_back("Larry");
  threeStooges.push_back("Moe");
  threeStooges.push_back("Curly");

  Characters MarxBrothers;
  MarxBrothers.push_back("Groucho");
  MarxBrothers.push_back("Harpo");
  MarxBrothers.push_back("Chico");
  MarxBrothers.push_back("Gummo");
  MarxBrothers.push_back("Zeppo");

  X x(threeStooges, MarxBrothers);
  x.write();
  std::cout << "\n  copying";
  X xcopy(x);
  xcopy.write();

  Characters threeMuskateers;
  threeMuskateers.push_back("Athos");
  threeMuskateers.push_back("Porthos");
  threeMuskateers.push_back("Aramis");
  std::ofstream fout("test.dat");
  if(fout.good())
  {
    X fx(threeMuskateers, MarxBrothers ,fout);
    std::cout << "\n  writing to file";
    fx.write();
    std::cout << "\n  copying";
    X fxcopy(fx);
    fxcopy.write();
    fout.close();
    std::ifstream fin("test.dat");
    if(fin.good())
    {
      std::cout << "\n  reading from file";
      std::cout << fin.rdbuf();
    }
    std::cout << "\n  assigning";
    x = fx;  // will use x's original ostream, e.g., cout
    x.write();
  }
  std::cout << "\n\n";
  return 0;
}