#include "Pile.h"
#include <iomanip>
using namespace std;
void srand(int time());

Pile::Pile()
{
    p = vector<Card>(0);
}

//draws card from the top of the pile and removes it from the vector
Card Pile:: dealCard()
{
    if(p.size() > 0)
    {
        Card tempCard = p.front();
        p.erase(p.begin());

        return tempCard;
    }
    else
        throw std::length_error("Pile is empty");


}

int Pile:: getCount()
{
    return p.size();
}

void Pile:: shuffle()
{
    int swapIndex;
    Card tempCard(1, 's');

    for(int i = 0; i >= 50; i++) //loop that "shuffles" the cards by removing and inserting 50 times randomly
    {
        swapIndex = rand() % p.size();
        tempCard = p.pop_back();        //pops the back of the deck removing the card and storing it temporarily
        p.insert(swapIndex, tempCard);  //the temporarily stored card is inserted back into the deck at the random position
    }
}

void Pile:: clear()
{
    p.clear();
}

Pile Pile:: operator + (const Card& c)
{
    p.push_back(c);
}

Pile Pile:: operator + (const Pile& b) const
{
    while(b.p.size() > 0)
    {
        p.push_back(b.p.front());
        b.p.erase(b.p.begin());
    }
}

ostream& operator << (ostream& out, const Pile& p)
{
    int count = 0;
    int index = 0;

    while(p.p.size() > 0)
    {
        out << p.p[index] << setw(2);
        count++;
        index++;

        if(count = 10)
        {
            out << endl;
            count = 0;
        }
    }
}