ESHKEEEIYIITITITITTTT

// TODO: comment this file

import acm.program.*;
import acm.util.*;
import java.io.*; // for File
import java.util.*; // for Scanner

public class Snowman extends SnowmanProgram {

    public void run() {
        int winCount = 0;
        int gameCount = 0;
        int bestGuessGame = 0;
        intro();
        String file = promptUserForFile("Directory filename? ", "res");
        boolean play = true;
        while (play) {
            int remainingGuesses = playOneGame(getRandomWord(file));
            if (remainingGuesses > 0) {
                winCount++;
            }
            gameCount++;
            bestGuessGame = bestGame(remainingGuesses, bestGuessGame);
            if (readBoolean("Play again (Y/N)?", "y", "n") == false) {
                play = false;
            }
        }
        stats(gameCount, winCount, bestGuessGame);
    }

    /*
     * This method prints an introductory message to the snowman game
     * Post: An introductory message will be displayed.
     */
    private void intro() {
        println("CS106A Snowman!");
        println("I will think of a random word.");
        println("You'll try to guess its letters.");
        println("Every time you guess a letter");
        println("that isn't in my word, a new");
        println("piece of the snowman appears.");
        println("Guess correctly to avoid");
        println("bringing him to life in the sun!");
        println();
    }

    // TODO: comment this method
    private int playOneGame(String secretWord) {
        boolean keepPlaying = true;
        boolean win = false;
        boolean lose = false;
        String guessedLetters = "";
        int guessCount = 0;
        boolean letterInWord = false;
        displaySnowman(guessCount);
        println("#######");
        while (keepPlaying) {
            println("Secret Word : " + createHint(secretWord, guessedLetters));
            println("Your Guesses: " + guessedLetters);
            println("Guesses Left: " + (8 - guessCount));
            char guess = readGuess(guessedLetters);
            for (int i = 0; i < secretWord.length(); i++) {
                if (secretWord.charAt(i) == (guess)) {
                    letterInWord = true;
                }
            }
            if (letterInWord) {
                guessedLetters += guess;
                println("Correct!");
                letterInWord = false;
                if (createHint(secretWord, guessedLetters).equals(secretWord)) {
                    keepPlaying = false;
                    win = true;
                } else {
                    displaySnowman(guessCount);
                    println("#######");
                }
            } else {
                guessedLetters += guess;
                guessCount++;
                println("Incorrect.");
                displaySnowman(guessCount);
                println("#######");
                if (8 - guessCount == 0) {
                    keepPlaying = false;
                    lose = true;
                }
            }

        }
        if (win) {
            println("You win! My word was \"" + secretWord + "\".");
        } else if (lose) {
            println("You lose! My word was \"" + secretWord + "\".");
        }
        return 8 - guessCount;
    }

    // TODO: comment this method
    private String createHint(String secretWord, String guessedLetters) {
        String hint = "";
        for (int i = 0; i < secretWord.length(); i++) {
            hint += "-";
        }
        for (int i = 0; i < guessedLetters.length(); i++) {
            for (int j = 0; j < secretWord.length(); j++) {
                if (guessedLetters.charAt(i) == secretWord.charAt(j)) {
                    hint = hint.substring(0, j) + secretWord.charAt(j) + hint.substring(j + 1);
                }
            }
        }
        return hint;
    }

    // TODO: comment this method
    private char readGuess(String guessedLetters) {
        String guess = readLine("Your guess? ");
        boolean invalidGuess = true;
        boolean checkGuessedLetters = true;
        char finalGuess = ' ';
        while (invalidGuess) {
            if (guess.length() > 1 || isNumber(guess) || guess.length() == 0) {
                println("Type a single letter from A-Z.");
                guess = readLine("Your guess? ");
            } else {
                guess = guess.toUpperCase();
                checkGuessedLetters = true;
                for (int i = 0; i < guessedLetters.length(); i++) {
                    if (Character.toString(guessedLetters.charAt(i)).equalsIgnoreCase(guess)) {
                        checkGuessedLetters = false;
                    }
                }
                if (checkGuessedLetters == false) {
                    println("You already guessed that letter.");
                    guess = readLine("Your guess? ");
                } else {
                    finalGuess = guess.charAt(0);
                    invalidGuess = false;
                }
            }
        }
        return finalGuess;

    }

    /*
     * This method displays an different image of a snowman, depending on the amount of guesses the player has taken.
     * Pre: The player must incorrectly guess a letter of the secret word
     * Post: An image of a snowman will be displayed.
     */
    private void displaySnowman(int guessCount) {
        try {
            Scanner input = new Scanner(new File("res/display" + (8 - guessCount) + ".txt")); //opens file of needed image
            while (input.hasNextLine()) {
                String line = input.nextLine();
                println(line); //prints each line of the image one by one
            }
        } catch (FileNotFoundException ex) {
            println("Error reading the file: " + ex); //displays an error if the file is not found
        }
    }

    /*
     * This program prints a set of statistics about the games of snowman that have been played
     * Pre: The player must choose not to play another game
     * Post: The statistics for all games played will be displayed
     */
    private void stats(int gamesCount, int gamesWon, int best) {
        println(" ");
    	println("Overall statistics:");
        println("Games played: " + gamesCount);
        println("Games won:    " + gamesWon);
        println("Win percent:  " + ((double) gamesWon / gamesCount * 100) + "%");
        println("Best game:    " + best + " guess(es) remaining");
        println("Thanks for playing!");
    }

    /*
     * This method randomly selects and retrieves a word from a file full of words.
     * Pre: A valid file name is provided.
     * Post: A random word will be returned from the file
     */
    private String getRandomWord(String filename) {
        String word = " ";
        try {
            Scanner input = new Scanner(new File(filename)); //opens the file of words
            String digit = input.nextLine(); //stores the first line (which is a digit) in a string
            int randInt = Integer.parseInt(digit); //converts the digit from a string to an integer
            int number = RandomGenerator.getInstance().nextInt(1, randInt); //generates a random number between 1 and the number of words in the file
            for (int i = 1; i <= number; i++) {
                word = input.nextLine(); //moves to the word corresponding to the random number and stores it as a string
            }
            input.close();
        } catch (FileNotFoundException ex) {
            print("Unable to open that file. Try again."); //displays an error if the file is not found
        }
        return word;
    }

    private boolean isNumber(String input) {
        try {
            Integer.parseInt(input);
            return true;
        } catch (NumberFormatException e) {
            return false;
        }
    }

    private int bestGame(int guesses, int bestGuesses){
        int best = 0;
        if(guesses > bestGuesses){
            best = guesses;
        } else {
            best = bestGuesses;
        }
        return best;
    }
}