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

public class Main {

    public static void main(String[] args) { new Main().run(); }

    Scanner sc = new Scanner(System.in);

    public void run(){
        String[] wordList = {"water", "koffie", "bril", "stekkerdoos", "beamer", "telefoon"};
        Random random = new Random();
        String word = wordList[random.nextInt(wordList.length)];
        boolean[] guessed = new boolean[word.length()];
        char[] alreadyGuessed = {};

        System.out.println("---------------------------------------------------");
        System.out.println("| Het woord dat je moet raden heeft " + word.length() + " letters.");
        System.out.println("---------------------------------------------------");

        while(alreadyGuessed.length < 10){
            printBoard(word, guessed, alreadyGuessed);
            System.out.print("Raad een letter: ");
            char input = getValidInputFromUser();
            guessed = checkIfInputMatchesWord(input, word, guessed);
            if(checkIfWon(guessed)){
                System.out.println("Je hebt gewonnen!");
                break;
            }
            alreadyGuessed = addCharToGuessedList(input, alreadyGuessed, word);
        }
        if(alreadyGuessed.length == 10) {
            System.out.println("Je hebt verloren!");
        }
    }

    public void printBoard(String word, boolean[] guessed, char[] alreadyGuessed){
        for (int i = 0; i < word.length(); i++) {
            if(guessed[i]){
                System.out.print(word.charAt(i) + " ");
            } else {
                System.out.print("_ ");
            }
        }
        System.out.println();
        System.out.print("Je hebt de volgende letters al geprobeerd: [ ");
        for (int i = 0; i < alreadyGuessed.length; i++) {
            System.out.print(alreadyGuessed[i] + " ");
        }
        System.out.println("]");
    }

    public char getValidInputFromUser(){
        return sc.next().charAt(0);
    }

    public boolean[] checkIfInputMatchesWord(char input, String word, boolean[] guessed){
        for (int i = 0; i < word.length(); i++) {
            if(input == word.charAt(i)){
                guessed[i] = true;
            }
        }
        return guessed;
    }

    public char[] addCharToGuessedList(char input, char[] alreadyGuessed, String word){
        boolean correctInput = false;
        for (int i = 0; i < word.length(); i++) {
            if(input == word.charAt(i)){
                correctInput = true;
            }
        }
        if(!correctInput){
            char[] newAlreadyGuessed = new char[alreadyGuessed.length+1];
            for (int i = 0; i < alreadyGuessed.length; i++) {
                newAlreadyGuessed[i] = alreadyGuessed[i];
            }
            newAlreadyGuessed[alreadyGuessed.length] = input;
            return newAlreadyGuessed;
        }
        return alreadyGuessed;
    }

    public boolean checkIfWon(boolean[] guessed){
        boolean hasWon = true;
        for (int i = 0; i < guessed.length; i++) {
            if(!guessed[i]){
                hasWon = false;
            }
        }
        return hasWon;
    }
}