#include "enhanced-stack.hpp"

ENHANCED_STACK::ENHANCED_STACK() : STACK()
{
}

void ENHANCED_STACK::Print_Stack()
{
  NODE * temp = HEAD;

  cout << "Stack: ";

  if(Is_Empty())
  {
    cout << "<Empty>";
  }
  else
  {
    while (temp != NULL)
    {
      cout << setw(3) << temp->value;
      temp = temp->link;
    }
  }

  cout << endl;
}

void ENHANCED_STACK::Clean()
{
  int value;

  while(!Is_Empty())
  {
    Pop(value);
  }
}

void ENHANCED_STACK::Copy(STACK & S1)
{
  ENHANCED_STACK temp;
  int value;

  Clean();

  while(!S1.Is_Empty())
  {
    S1.Pop(value);
    temp.Push(value);
  }

  while(!temp.Is_Empty())
  {
    temp.Pop(value);
    Push(value);
    S1.Push(value);
  }
}

int ENHANCED_STACK::Equal(STACK & S1)
{
  ENHANCED_STACK temp1;
  ENHANCED_STACK temp2;

  int flag = 1;
  int value1;
  int value2;

  temp1.Copy(*this);
  temp2.Copy(S1);

  while(!(temp1.Is_Empty() && temp2.Is_Empty()))
  {
    temp1.Pop(value1);
    temp2.Pop(value2);

    if(value1 != value2)
    {
      flag = 0;
      break;
    }
  }

  if(temp1.Is_Empty() && temp2.Is_Empty())
  {
    flag = 0;
  }

  return flag;
}