// Utility class for Hangman
//
// DO NOT ADD METHODS TO THIS CLASS AND USE IT IN Hangman.java!
// The version of this file we will use for grading will not have
// your changes!
//
// WARNING: The only changes you may make is in the BODY of the
// drawGame method.  Do not change anything else.
//
import java.io.*;
import java.util.*;
import java.awt.*;

public class HangmanUtils {
	// DO NOT CHANGE THESE
	public static DrawingPanel panel = null;
	public static String name = "";
	public static ArrayList<String> wordList = new ArrayList<String>();
	public static Random rand = new Random();
	
	// for testing
	public static void main(String[] args) {
		drawGame("h e l l o ", "zcefdq");
	}

	// DO NOT MODIFY THIS METHOD
	// constructs the word list from the given file name
	private static void constructWordList(String filename) {
		Scanner input = null;
		try {
			input = new Scanner(new File(filename));
		} catch(FileNotFoundException e) {
			System.out.println("Can't open file: " + filename + " (is it missing?)");
			System.exit(0);
		}
		
		wordList.clear();
		
		while (input.hasNext()) {
			String line = input.nextLine();
			boolean isWord = true;
			for (int i = 0; i < line.length(); i++) {
				if (!Character.isLetter(line.charAt(i))) {
					isWord = false;
				}
			}
		
			if (isWord) {
				wordList.add(line);
			}	
		}
	}
	
	// DO NOT MODIFY THIS METHOD
	// gets a random word from a file called hangman-words.txt
	public static String getWord() {
		String filename = "hangman-words.txt";
		if (!name.equals(filename)) {
			constructWordList(filename);
		}

		return wordList.get(rand.nextInt(wordList.size())).toUpperCase();
	}
	
	// YOU MAY CHANGE THE BODY OF THIS METHOD, BUT DO NOT MODIFY THE METHOD HEADER
	// draws the hangman
	public static void drawGame(String formattedAnswer, String misses) {
		///////////////////////////////////////////////////////////
		// YOU MAY ONLY CHANGE THE BODY OF THIS METHOD
		///////////////////////////////////////////////////////////
				
		// gallows' parameters
		int topLeftX = 70;
		int topLeftY = 70;
		int nooseLength = 30;
		int topBarLength = 80;
		int gallowsHeight = 200;
		int bottomBarLength = topBarLength + 40;
		int barThickness = 10;

		int panelWidth = bottomBarLength * 5;
		int panelHeight = gallowsHeight * 2;
		
		if (panel == null) {
			panel = new DrawingPanel(panelWidth, panelHeight);
		}

		Graphics pen = panel.getGraphics();		
		pen.setColor(Color.WHITE);
		pen.fillRect(0, 0, panelWidth, panelHeight);
		pen.setColor(Color.BLACK);

		// draw gallows
		pen.fillRect(topLeftX, topLeftY, barThickness, nooseLength); // noose
		pen.fillRect(topLeftX, topLeftY, topBarLength, barThickness); // arm
		pen.fillRect(topLeftX + topBarLength, topLeftY, barThickness, gallowsHeight); // stand
		pen.fillRect(topLeftX - 10, topLeftY + gallowsHeight, bottomBarLength, barThickness); // base

		// draw guess so far
		String guessSoFar = formattedAnswer.toUpperCase();
		pen.setFont(new Font("SanSerif", Font.PLAIN, 20));
		pen.drawString("Word:   ", topLeftX + bottomBarLength + 20, topLeftY + 30);
		pen.setFont(new Font("SanSerif", Font.BOLD, 20));
		pen.drawString(guessSoFar, topLeftX + bottomBarLength + 100, topLeftY + 30);

		// draw misses (fencepost problem!)
		String formattedMisses = "Misses:  ";
		misses = misses.toUpperCase();
		if (misses.length() > 0) {
			formattedMisses += misses.charAt(0);
			for (int i = 1; i < misses.length(); i++) {
				formattedMisses += "," + misses.charAt(i);
			}
		}
		pen.setFont(new Font("SanSerif", Font.PLAIN, 20));
		pen.drawString(formattedMisses, topLeftX + bottomBarLength + 20, topLeftY + 70);
		
		int numErrors = misses.length();
		
		int headSize = 30;
		int bodyCenter = topLeftX + barThickness / 2;
		int shoulderY = topLeftY + nooseLength + headSize + 15;
		int bodyTop = topLeftY + nooseLength + headSize;
		int armY = bodyTop + 5;
		int bodyBottom = bodyTop + gallowsHeight / 3;
		int legY = bodyBottom + 30;
		
		// draw head
		if (numErrors >= 1) {
			pen.drawOval(topLeftX - headSize / 2 + barThickness / 2, topLeftY + nooseLength, 30, 30);
		}
		// draw body
		if (numErrors >= 2) {
			pen.drawLine(bodyCenter, bodyTop, bodyCenter, bodyBottom);
		}	
		// draw right arm
		if (numErrors >= 3) {
			pen.drawLine(bodyCenter, shoulderY, bodyCenter - 30, armY);
		}
		// draw left arm
		if (numErrors >= 4) {
			pen.drawLine(bodyCenter, shoulderY, bodyCenter + 30, armY);
		}
		// draw right leg
		if (numErrors >= 5) {
			pen.drawLine(bodyCenter, bodyBottom, bodyCenter - 30, legY);
		}
		// draw left leg
		if (numErrors >= 6) {
			pen.drawLine(bodyCenter, bodyBottom, bodyCenter + 30, legY);
			endGame("YOU SUCK!", 100, topLeftY + gallowsHeight + 80);
		} else if (formattedAnswer.indexOf("_") < 0) { // answer has no blanks
			endGame("YOU WIN!", 100, topLeftY + gallowsHeight + 80);
		}
	}
	
	// DO NOT MODIFY THIS METHOD
	// ends the game and disposes of the DrawingPanel
	public static void endGame(String display, int x, int y) {
		Graphics pen = panel.getGraphics();
		pen.setFont(new Font("SanSerif", Font.BOLD, 50));
		pen.drawString(display, x, y);
		panel.sleep(3000);
		panel.dispose();
		panel = null; // have to set to null, so new one
						  // will be created for next game
	}
}