import java.io.*;
import java.util.*;

public class ChooseWord {

    /* Fonction pour choisir un mot selon la difficulté */
    public static String chooseTheWordByDifficulty(String difficulty) {
        List<String> words = new ArrayList<>();
        String difficultyDictio = "motsFacile.txt"; // par défaut

        if (difficulty.equals("easy")) {
            difficultyDictio = "motsFacile.txt";
        } else if (difficulty.equals("medium")) {
            difficultyDictio = "motsMoyen.txt";
        } else if (difficulty.equals("hard")) {
            difficultyDictio = "motsDifficiles.txt";
        }

        try (BufferedReader reader = new BufferedReader(new FileReader(difficultyDictio))) {
            String line;
            while ((line = reader.readLine()) != null) {
                String word = line.trim().toLowerCase();
                if (word.isEmpty()) continue;
                words.add(word);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }

        if (words.isEmpty()) {
            return "default";
        }

        Random rand = new Random();

        if (difficulty.equals("hard")) {
            // Pour "hard", on peut choisir deux mots concaténés
            String first = words.get(rand.nextInt(words.size()));
            String second = words.get(rand.nextInt(words.size()));
            return first + " " + second;
        } else {
            return words.get(rand.nextInt(words.size()));
        }
    }
}