/**
 * This class will hold instances of 2 cards.
 * 
 * @author Devin Gray and Class 
 * @version 2/24/2016
 */
public class Hand
{
    private int total = 0;
    private boolean aceFlag = false;
    private Card card1;
    private Card card2;
    
    public Hand()
    {
    }
    
    public void addCard()
    {
        int rank = generateNumber(1, 13);
        String rankStr = convertRank(rank);
        
        int suit = generateNumber(1, 4);
        String suitStr = convertSuit(suit);
        
        Card newCard = new Card(rankStr, suitStr);
        
        int cardValue = newCard.getValue();
        if(cardValue == 11)
        {
            this.aceFlag = true;
        }
        total += cardValue;
        System.out.println("total = " + total);
    }
  
    public void generateFirstCard()
    {
        int rank = generateNumber(1, 13);
        String rankStr = convertRank(rank);
        
        int suit = generateNumber(1, 4);
        String suitStr = convertSuit(suit);
        
        card1 = new Card(rankStr, suitStr);
    }
    
    public void generateSecondCard()
    {
        int rank = generateNumber(1, 13);
        String rankStr = convertRank(rank);
        
        int suit = generateNumber(1, 4);
        String suitStr = convertSuit(suit);
        
        card2 = new Card(rankStr, suitStr);
    }
    
    private String convertRank(int rank)
    {
        switch(rank) {
            case 2:   return "two";
            case 3:   return "three";
            case 4:   return "four";
            case 5:   return "five";
            case 6:   return "six";
            case 7:   return "seven";
            case 8:   return "eight";
            case 9:   return "nine";
            case 10:  return "ten";
            case 11:  return "jack";
            case 12:  return "queen";
            case 13:  return "king";
            case 1:   return "ace";
            default:  return "error";
        }
    }
    
    private String convertSuit(int suit)
    {
        switch(suit) {
            case 1:   return "spades";
            case 2:   return "diamonds";
            case 3:   return "clubs";
            case 4:   return "hearts";
            default:  return "error";
        }
    }    
    
    private int generateNumber(int low, int high)
    {
        return (int) ((high - low + 1) * Math.random()) + low;
    }
  
    public void addFirstCard(Card card1)
    {
        this.card1 = card1;
        if(card1.getValue() == 11)
        {
            this.aceFlag = true;
        }
    }
    
    public void addSecondCard(Card card2)
    {
        this.card2 = card2;
        if(card2.getValue() == 11)
        {
            this.aceFlag = true;
        }
    }
    
    /**
     * A dealer will "Hit" if the initial two cards either 
     * (1) total 16 or less or 
     * (2) make a soft 17.
     * Otherwise, the dealer will "Stand".
     */
    public void evaluate()
    {
        int handValue = card1.getValue() + card2.getValue();
        
        if(handValue <= 16 || (handValue == 17 && aceFlag))
        {
            System.out.println("Hit");
        }
        else
        {
            System.out.println("Stand");
        }
    }
    
    public String evaluate2()
    {
        int handValue = this.total;
        
        if(handValue <= 16 || (handValue == 17 && aceFlag))
        {
            return "Hit";
        }
        else
        {
            return "Stand";
        }
    }
    
    public void evaluateHand()
    {
        int handValue = card1.getValue() + card2.getValue();
        
        System.out.println("Card1: " + card1);
        System.out.println("Card2: " + card2);
        System.out.println("Total Value: " + handValue);
    }
    
    public String toString()
    {
        return "Hand Value = " + this.total;
    }
    
}