/**** 
* Plugins
****/ 
var tween = LK.import("@upit/tween.v1");
var storage = LK.import("@upit/storage.v1");

/**** 
* Classes
****/ 
var AnswerButton = Container.expand(function () {
	var self = Container.call(this);
	self.buttonGraphic = self.attachAsset('answerButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.answerText = new Text2('', {
		size: 36,
		fill: 0xFFFFFF
	});
	self.answerText.anchor.set(0.5, 0.5);
	self.answerText.x = 0;
	self.answerText.y = 0;
	self.addChild(self.answerText);
	self.isCorrect = false;
	self.answered = false;
	self.setText = function (text) {
		self.answerText.setText(text);
	};
	self.setCorrect = function (correct) {
		self.isCorrect = correct;
	};
	self.showResult = function () {
		self.answered = true;
		self.removeChild(self.buttonGraphic);
		if (self.isCorrect) {
			self.buttonGraphic = self.attachAsset('correctButton', {
				anchorX: 0.5,
				anchorY: 0.5
			});
		} else {
			self.buttonGraphic = self.attachAsset('incorrectButton', {
				anchorX: 0.5,
				anchorY: 0.5
			});
		}
	};
	self.down = function (x, y, obj) {
		if (!self.answered && gameState === 'playing') {
			handleAnswerClick(self);
		}
	};
	return self;
});
var DifficultyButton = Container.expand(function () {
	var self = Container.call(this);
	self.buttonGraphic = self.attachAsset('difficultyButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.difficultyText = new Text2('', {
		size: 28,
		fill: 0xFFFFFF
	});
	self.difficultyText.anchor.set(0.5, 0.5);
	self.difficultyText.x = 0;
	self.difficultyText.y = 0;
	self.addChild(self.difficultyText);
	self.difficulty = '';
	self.setText = function (text) {
		self.difficultyText.setText(text);
		self.difficulty = text;
	};
	self.down = function (x, y, obj) {
		if (gameState === 'difficultySelection') {
			selectedDifficulty = self.difficulty;
			startQuiz();
		}
	};
	return self;
});
var QuestionPanel = Container.expand(function () {
	var self = Container.call(this);
	var panel = self.attachAsset('questionPanel', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.questionText = new Text2('', {
		size: 48,
		fill: 0xFFFFFF
	});
	self.questionText.anchor.set(0.5, 0.5);
	self.questionText.x = 0;
	self.questionText.y = 0;
	self.addChild(self.questionText);
	self.setQuestion = function (text) {
		self.questionText.setText(text);
	};
	return self;
});
var TopicButton = Container.expand(function () {
	var self = Container.call(this);
	self.buttonGraphic = self.attachAsset('topicButton', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.topicText = new Text2('', {
		size: 32,
		fill: 0xFFFFFF
	});
	self.topicText.anchor.set(0.5, 0.5);
	self.topicText.x = 0;
	self.topicText.y = 0;
	self.addChild(self.topicText);
	self.topic = '';
	self.setText = function (text) {
		self.topicText.setText(text);
		self.topic = text;
	};
	self.down = function (x, y, obj) {
		if (gameState === 'topicSelection') {
			selectedTopic = self.topic;
			showDifficultySelection();
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x34495e
});

/**** 
* Game Code
****/ 
// Game state variables
var gameState = 'topicSelection'; // 'topicSelection', 'difficultySelection', 'playing', 'results'
var selectedTopic = '';
var selectedDifficulty = '';
var currentQuestionIndex = 0;
var totalQuestions = 10;
var score = 0;
var questions = [];
// UI Elements
var questionPanel;
var answerButtons = [];
var topicButtons = [];
var difficultyButtons = [];
var progressBarBackground;
var progressBar;
var titleText;
var scoreText;
var questionCountText;
// Quiz data
var quizTopics = ['Science', 'History', 'Geography', 'Literature', 'Mathematics', 'Sports', 'Movies', 'Music'];
var difficulties = ['Easy', 'Medium', 'Hard'];
// Sample questions for different topics and difficulties
var questionBank = {
	'Science': {
		'Easy': [{
			q: 'What is the chemical symbol for water?',
			a: ['H2O', 'CO2', 'NaCl', 'O2'],
			c: 0
		}, {
			q: 'How many planets are in our solar system?',
			a: ['7', '8', '9', '10'],
			c: 1
		}, {
			q: 'What gas do plants absorb from the atmosphere?',
			a: ['Oxygen', 'Carbon Dioxide', 'Nitrogen', 'Hydrogen'],
			c: 1
		}, {
			q: 'What is the center of an atom called?',
			a: ['Electron', 'Proton', 'Nucleus', 'Neutron'],
			c: 2
		}, {
			q: 'What is the hardest natural substance?',
			a: ['Gold', 'Iron', 'Diamond', 'Silver'],
			c: 2
		}],
		'Medium': [{
			q: 'What is the speed of light in vacuum?',
			a: ['300,000 km/s', '150,000 km/s', '450,000 km/s', '600,000 km/s'],
			c: 0
		}, {
			q: 'Which element has the atomic number 1?',
			a: ['Helium', 'Hydrogen', 'Lithium', 'Carbon'],
			c: 1
		}, {
			q: 'What type of bond holds water molecules together?',
			a: ['Ionic', 'Covalent', 'Hydrogen', 'Metallic'],
			c: 2
		}, {
			q: 'What is the most abundant gas in Earth atmosphere?',
			a: ['Oxygen', 'Carbon Dioxide', 'Nitrogen', 'Argon'],
			c: 2
		}, {
			q: 'How many chambers does a human heart have?',
			a: ['2', '3', '4', '5'],
			c: 2
		}],
		'Hard': [{
			q: 'What is the Heisenberg Uncertainty Principle about?',
			a: ['Energy conservation', 'Position and momentum', 'Time dilation', 'Mass equivalence'],
			c: 1
		}, {
			q: 'What is the name of the theoretical boundary around a black hole?',
			a: ['Photon sphere', 'Event horizon', 'Ergosphere', 'Singularity'],
			c: 1
		}, {
			q: 'Which subatomic particle was discovered by J.J. Thomson?',
			a: ['Proton', 'Neutron', 'Electron', 'Positron'],
			c: 2
		}, {
			q: 'What is the pH of pure water at 25°C?',
			a: ['6', '7', '8', '9'],
			c: 1
		}, {
			q: 'What is the first law of thermodynamics?',
			a: ['Energy cannot be created or destroyed', 'Entropy always increases', 'Absolute zero is unattainable', 'Heat flows from hot to cold'],
			c: 0
		}]
	},
	'History': {
		'Easy': [{
			q: 'In which year did World War II end?',
			a: ['1944', '1945', '1946', '1947'],
			c: 1
		}, {
			q: 'Who was the first President of the United States?',
			a: ['Thomas Jefferson', 'George Washington', 'John Adams', 'Benjamin Franklin'],
			c: 1
		}, {
			q: 'Which ancient wonder was located in Egypt?',
			a: ['Hanging Gardens', 'Colossus of Rhodes', 'Great Pyramid of Giza', 'Lighthouse of Alexandria'],
			c: 2
		}, {
			q: 'What year did the Titanic sink?',
			a: ['1910', '1911', '1912', '1913'],
			c: 2
		}, {
			q: 'Who painted the Mona Lisa?',
			a: ['Michelangelo', 'Leonardo da Vinci', 'Raphael', 'Donatello'],
			c: 1
		}],
		'Medium': [{
			q: 'Which empire was ruled by Julius Caesar?',
			a: ['Greek Empire', 'Roman Empire', 'Persian Empire', 'Byzantine Empire'],
			c: 1
		}, {
			q: 'In what year did the Berlin Wall fall?',
			a: ['1987', '1988', '1989', '1990'],
			c: 2
		}, {
			q: 'Who was the first person to walk on the moon?',
			a: ['Buzz Aldrin', 'Neil Armstrong', 'John Glenn', 'Alan Shepard'],
			c: 1
		}, {
			q: 'Which war was fought between the North and South in America?',
			a: ['Revolutionary War', 'War of 1812', 'Civil War', 'Spanish-American War'],
			c: 2
		}, {
			q: 'What ancient civilization built Machu Picchu?',
			a: ['Maya', 'Aztec', 'Inca', 'Olmec'],
			c: 2
		}],
		'Hard': [{
			q: 'Which treaty ended World War I?',
			a: ['Treaty of Versailles', 'Treaty of Paris', 'Treaty of Vienna', 'Treaty of Westphalia'],
			c: 0
		}, {
			q: 'Who was the last Tsar of Russia?',
			a: ['Alexander III', 'Nicholas II', 'Alexander II', 'Nicholas I'],
			c: 1
		}, {
			q: 'What year did the Byzantine Empire fall?',
			a: ['1453', '1492', '1517', '1571'],
			c: 0
		}, {
			q: 'Which battle is considered the turning point of World War II in the Pacific?',
			a: ['Pearl Harbor', 'Midway', 'Guadalcanal', 'Iwo Jima'],
			c: 1
		}, {
			q: 'Who wrote "The Communist Manifesto"?',
			a: ['Vladimir Lenin', 'Karl Marx and Friedrich Engels', 'Leon Trotsky', 'Joseph Stalin'],
			c: 1
		}]
	}
};
// Initialize UI
function initializeUI() {
	// Title text
	titleText = new Text2('Quiz Master Challenge', {
		size: 72,
		fill: 0xFFFFFF
	});
	titleText.anchor.set(0.5, 0.5);
	titleText.x = 1024;
	titleText.y = 300;
	game.addChild(titleText);
	// Score display
	scoreText = new Text2('Score: 0', {
		size: 48,
		fill: 0xFFFFFF
	});
	scoreText.anchor.set(0.5, 0);
	LK.gui.top.addChild(scoreText);
	// Question count
	questionCountText = new Text2('', {
		size: 36,
		fill: 0xFFFFFF
	});
	questionCountText.anchor.set(1, 0);
	LK.gui.topRight.addChild(questionCountText);
	showTopicSelection();
}
function showTopicSelection() {
	gameState = 'topicSelection';
	clearGameElements();
	titleText.setText('Choose Your Topic');
	titleText.y = 400;
	// Create topic buttons
	var cols = 4;
	var rows = Math.ceil(quizTopics.length / cols);
	var startX = 1024 - (cols - 1) * 450 / 2;
	var startY = 800;
	for (var i = 0; i < quizTopics.length; i++) {
		var col = i % cols;
		var row = Math.floor(i / cols);
		var topicButton = new TopicButton();
		topicButton.setText(quizTopics[i]);
		topicButton.x = startX + col * 450;
		topicButton.y = startY + row * 150;
		topicButtons.push(topicButton);
		game.addChild(topicButton);
	}
}
function showDifficultySelection() {
	gameState = 'difficultySelection';
	clearGameElements();
	titleText.setText('Choose Difficulty');
	titleText.y = 500;
	var startX = 1024;
	var startY = 800;
	for (var i = 0; i < difficulties.length; i++) {
		var difficultyButton = new DifficultyButton();
		difficultyButton.setText(difficulties[i]);
		difficultyButton.x = startX;
		difficultyButton.y = startY + i * 150;
		difficultyButtons.push(difficultyButton);
		game.addChild(difficultyButton);
	}
}
function startQuiz() {
	gameState = 'playing';
	clearGameElements();
	// Generate questions
	generateQuestions();
	currentQuestionIndex = 0;
	score = 0;
	// Create progress bar
	progressBarBackground = game.addChild(LK.getAsset('progressBackground', {
		anchorX: 0.5,
		anchorY: 0.5
	}));
	progressBarBackground.x = 1024;
	progressBarBackground.y = 200;
	progressBar = game.addChild(LK.getAsset('progressBar', {
		anchorX: 0,
		anchorY: 0.5
	}));
	progressBar.x = progressBarBackground.x - progressBarBackground.width / 2;
	progressBar.y = 200;
	progressBar.width = 0;
	// Create question panel
	questionPanel = new QuestionPanel();
	questionPanel.x = 1024;
	questionPanel.y = 600;
	game.addChild(questionPanel);
	// Create answer buttons
	for (var i = 0; i < 4; i++) {
		var answerButton = new AnswerButton();
		var col = i % 2;
		var row = Math.floor(i / 2);
		answerButton.x = 524 + col * 1000;
		answerButton.y = 1000 + row * 200;
		answerButtons.push(answerButton);
		game.addChild(answerButton);
	}
	showQuestion();
}
function generateQuestions() {
	questions = [];
	var topicQuestions = questionBank[selectedTopic] && questionBank[selectedTopic][selectedDifficulty];
	if (topicQuestions) {
		// Use existing questions
		for (var i = 0; i < Math.min(totalQuestions, topicQuestions.length); i++) {
			questions.push(topicQuestions[i]);
		}
	} else {
		// Generate placeholder questions
		for (var i = 0; i < totalQuestions; i++) {
			questions.push({
				q: 'Sample question ' + (i + 1) + ' about ' + selectedTopic + ' (' + selectedDifficulty + ')',
				a: ['Option A', 'Option B', 'Option C', 'Option D'],
				c: Math.floor(Math.random() * 4)
			});
		}
	}
}
function showQuestion() {
	if (currentQuestionIndex >= questions.length) {
		showResults();
		return;
	}
	var question = questions[currentQuestionIndex];
	// Update question panel
	questionPanel.setQuestion(question.q);
	// Update answer buttons
	for (var i = 0; i < 4; i++) {
		answerButtons[i].setText(question.a[i]);
		answerButtons[i].setCorrect(i === question.c);
		answerButtons[i].answered = false;
		// Reset button graphics
		answerButtons[i].removeChild(answerButtons[i].buttonGraphic);
		answerButtons[i].buttonGraphic = answerButtons[i].attachAsset('answerButton', {
			anchorX: 0.5,
			anchorY: 0.5
		});
	}
	// Update progress
	updateProgress();
	updateScoreDisplay();
}
function handleAnswerClick(button) {
	// Show results for all buttons
	for (var i = 0; i < answerButtons.length; i++) {
		answerButtons[i].showResult();
	}
	// Update score
	if (button.isCorrect) {
		var points = getDifficultyPoints();
		score += points;
		LK.getSound('correct').play();
		LK.effects.flashObject(button, 0x27ae60, 500);
	} else {
		LK.getSound('incorrect').play();
		LK.effects.flashObject(button, 0xe74c3c, 500);
	}
	// Move to next question after delay
	LK.setTimeout(function () {
		currentQuestionIndex++;
		showQuestion();
	}, 2000);
}
function getDifficultyPoints() {
	switch (selectedDifficulty) {
		case 'Easy':
			return 10;
		case 'Medium':
			return 20;
		case 'Hard':
			return 30;
		default:
			return 10;
	}
}
function updateProgress() {
	var progress = (currentQuestionIndex + 1) / totalQuestions;
	progressBar.width = progressBarBackground.width * progress;
	questionCountText.setText('Question ' + (currentQuestionIndex + 1) + '/' + totalQuestions);
}
function updateScoreDisplay() {
	scoreText.setText('Score: ' + score);
}
function showResults() {
	gameState = 'results';
	clearGameElements();
	var percentage = Math.round(score / (totalQuestions * getDifficultyPoints()) * 100);
	var grade = getGrade(percentage);
	titleText.setText('Quiz Complete!');
	titleText.y = 500;
	var resultText = new Text2('Final Score: ' + score + '\nAccuracy: ' + percentage + '%\nGrade: ' + grade, {
		size: 48,
		fill: 0xFFFFFF
	});
	resultText.anchor.set(0.5, 0.5);
	resultText.x = 1024;
	resultText.y = 900;
	game.addChild(resultText);
	var playAgainText = new Text2('Tap anywhere to play again', {
		size: 36,
		fill: 0x95A5A6
	});
	playAgainText.anchor.set(0.5, 0.5);
	playAgainText.x = 1024;
	playAgainText.y = 1200;
	game.addChild(playAgainText);
	// Update high score
	var highScore = storage.highScore || 0;
	if (score > highScore) {
		storage.highScore = score;
		LK.effects.flashScreen(0xf1c40f, 1000);
	}
	LK.setScore(score);
}
function getGrade(percentage) {
	if (percentage >= 90) return 'A+';
	if (percentage >= 80) return 'A';
	if (percentage >= 70) return 'B';
	if (percentage >= 60) return 'C';
	if (percentage >= 50) return 'D';
	return 'F';
}
function clearGameElements() {
	// Clear topic buttons
	for (var i = 0; i < topicButtons.length; i++) {
		topicButtons[i].destroy();
	}
	topicButtons = [];
	// Clear difficulty buttons
	for (var i = 0; i < difficultyButtons.length; i++) {
		difficultyButtons[i].destroy();
	}
	difficultyButtons = [];
	// Clear answer buttons
	for (var i = 0; i < answerButtons.length; i++) {
		answerButtons[i].destroy();
	}
	answerButtons = [];
	// Clear question panel
	if (questionPanel) {
		questionPanel.destroy();
		questionPanel = null;
	}
	// Clear progress bars
	if (progressBar) {
		progressBar.destroy();
		progressBar = null;
	}
	if (progressBarBackground) {
		progressBarBackground.destroy();
		progressBarBackground = null;
	}
}
// Game event handlers
game.down = function (x, y, obj) {
	if (gameState === 'results') {
		showTopicSelection();
	}
};
game.update = function () {
	// Update score display if needed
	if (gameState === 'playing') {
		updateScoreDisplay();
	}
};
// Initialize the game
initializeUI();