package FinalProject;

import java.util.Arrays;
import java.util.Scanner;

public class Hangman {

    public static void main(String[] args) {
        String[] words = {"football","java", "program", "awesome", "candy"};

        int randomWordNumber = (int) (Math.random() * words.length);
        
        char[] enteredLetters = new char[words[randomWordNumber].length()];
        int triesCount = 0;
        boolean wordIsGuessed = false;
        do {
            //string array for words in the game and it is randomized
           
        switch (enterLetter(words[randomWordNumber], enteredLetters)) {
            case 0:
                triesCount++;
                break;
            case 1:
                triesCount++;
                break;
            case 2:
                break;
            case 3:
                wordIsGuessed = true;
                break;
        }
        } while (! wordIsGuessed);
        System.out.println("\nThe word was: " + words[randomWordNumber] +
            " : Letters missed " + (triesCount -findEmptyPosition(enteredLetters)) +
            " times");
    }   //print out lines for directions 

    public static int enterLetter(String word, char[] enteredLetters)    {
        System.out.print("Guess a letter ");
        if (! printWord(word, enteredLetters))
            return 3;
        System.out.print(" = ");
        Scanner input = new Scanner(System.in);
        int emptyPosition = findEmptyPosition(enteredLetters);
        char userInput = input.nextLine().charAt(0);
        if (inEnteredLetters(userInput, enteredLetters)) {
            System.out.println(userInput + " you already guessed it");
            return 2;
        }
        else if (word.contains(String.valueOf(userInput))) {
            enteredLetters[emptyPosition] = userInput;
            return 1;
        }
        else {
            System.out.println(userInput + " nope, guess again");
            return 0;
            }
    }   //calculating if the letter is in the word or not 

    public static boolean printWord(String word, char[] enteredLetters) {
        boolean asteriskPrinted = false;
        for (int i = 0; i < word.length(); i++) {
            char letter = word.charAt(i);
            if (inEnteredLetters(letter, enteredLetters))
                System.out.print(letter); 
            else {
                System.out.print('*');
                asteriskPrinted = true;
            }
        }
        return asteriskPrinted;
    }

    public static boolean inEnteredLetters(char letter, char[] enteredLetters) {
        return new String(enteredLetters).contains(String.valueOf(letter));
    }

    public static int findEmptyPosition(char[] enteredLetters) {
        int i = 0;
        while (enteredLetters[i] != '\u0000') i++;
        return i;
    }
}