import java.util.ArrayList;

/**
 * Controls various functions relating to the word being guessed
 * 
 * @author Leon Traill
 * @version 0.01
 */
public class Word
{
    private ArrayList<String> usedWords;
    private ArrayList<Character> guessedLetters;
    
    char [] wordArray;
    
    String wordToConvert;
    char charGuess;
    char correctChar;
    boolean duplicateGuess;
    boolean usedBefore;
    boolean correctGuess;
    
    public Word()
    {
        usedWords = new ArrayList<String>();
        guessedLetters = new ArrayList<Character>();
    }
    
    /**
     * Convert the current word into a char array, and display a  series of placeholer dashes
     */
    public void convertToDashes()
    {
        // Split the current word into seperate characters
        for( int index = 0; index < wordArray.length; index++ )
        {
            System.out.print(" _ ");
        }
        System.out.println();
    }
    
    /**
     * Checks if the current word has already been used in the game
     */
    public boolean checkUsedBefore()
    {
        for( int index = 0; index < usedWords.size(); index++ )
        {
            if( usedWords.get(index).equals(wordToConvert) )
            {
                usedBefore = true;
            }
            else
            {
                usedBefore = false;
            }
        }
        return usedBefore;
    }

    /**
     * Stores the current word in an array
     */
    public void addWord()
    {
        usedWords.add(wordToConvert);
    }
    
    /**
     * Checks player's character input against previously guessed letters
     * 
     * @return duplicateGuess
     */
    public boolean checkLetter()
    {
        for( int index = 0; index < guessedLetters.size(); index ++ )
        {
            if( charGuess == guessedLetters.get(index) )
            {
                duplicateGuess = true;
            }
            else
            {
                duplicateGuess = false;
            }
        }
        return duplicateGuess;
    }
    
    /**
     * Checks player's character guess
     * 
     * @return correctGuess
     */
    public boolean checkGuess()
    {
        System.out.println(duplicateGuess);
        for( int index = 0; (index <= wordArray.length-1); index++ )
        {
            if( (charGuess == wordArray[index]) && (!duplicateGuess) )
            {
                correctGuess = true;
                guessedLetters.add(charGuess);
                correctChar = charGuess;
                System.out.print(" " + correctChar + " ");
            }
            else
            {
                correctGuess = false;
                System.out.print(" _ ");
            }
        }
        return correctGuess;
    }
    
    /**
     * Print out guessed letters
     */
    public void showGuessedLetters()
    {
        System.out.println("Incorrect guesses:");
        for( int index = 0; index < guessedLetters.size(); index++ )
        {
            System.out.println(guessedLetters.get(index));
        }
    }
}