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

/**** 
* Classes
****/ 
// Card class: represents a single card in the memory game
var Card = Container.expand(function () {
	var self = Container.call(this);
	// Card states: 'hidden', 'revealed', 'matched'
	self.state = 'hidden';
	self.fruitId = null; // Will be set on creation
	// Card back (hidden state)
	var back = self.attachAsset('cardBack', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.back = back;
	// Card front (fruit image, revealed state)
	// Default to watermelon image, will be replaced by setFruit
	var front = self.attachAsset('Watermelon', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	self.front = front;
	self.front.visible = false;
	// Set fruit image for this card
	self.setFruit = function (fruitId) {
		self.fruitId = fruitId;
		// Map fruitId to asset name in assets section
		var assetMap = {
			'banana': 'Banana',
			'cherry': 'Cherry',
			'orange': 'Orange',
			'grape': 'grape',
			'lemon': 'lemon',
			'peach': 'Peach',
			'strawberry': 'strawberry',
			'watermelon': 'Watermelon',
			'Coconut': 'Coconut',
			'Kiwi': 'Kiwi',
			'apple': 'apple',
			'Pear': 'Pear',
			'Pineapple': 'Pineapple',
			'Avocado': 'Avocado',
			'Daisy': 'Daisy',
			'Rock': 'Rock',
			'Water': 'Water'
		};
		var assetName = assetMap[fruitId] || 'fruit';
		var fruitAsset = LK.getAsset(assetName, {
			anchorX: 0.5,
			anchorY: 0.5
		});
		// Remove old front if present
		if (self.front && self.front.parent) self.removeChild(self.front);
		self.front = fruitAsset;
		self.addChild(self.front);
		self.front.visible = false;
		self.front.x = 0;
		self.front.y = 0;
		self.back.x = 0;
		self.back.y = 0;
	};
	// Reveal the card (show fruit)
	self.reveal = function () {
		if (self.state !== 'hidden') return;
		self.state = 'revealed';
		self.back.visible = false;
		self.front.visible = true;
		// Optional: flip animation
		tween(self, {
			scaleX: 0
		}, {
			duration: 80,
			easing: tween.cubicIn,
			onFinish: function onFinish() {
				self.back.visible = false;
				self.front.visible = true;
				tween(self, {
					scaleX: 1
				}, {
					duration: 80,
					easing: tween.cubicOut
				});
			}
		});
	};
	// Hide the card (show back)
	self.hide = function () {
		if (self.state !== 'revealed') return;
		self.state = 'hidden';
		// Optional: flip animation
		tween(self, {
			scaleX: 0
		}, {
			duration: 80,
			easing: tween.cubicIn,
			onFinish: function onFinish() {
				self.front.visible = false;
				self.back.visible = true;
				tween(self, {
					scaleX: 1
				}, {
					duration: 80,
					easing: tween.cubicOut
				});
			}
		});
	};
	// Mark as matched (permanently revealed)
	self.match = function () {
		self.state = 'matched';
		self.back.visible = false;
		self.front.visible = true;
		// Optional: small scale bounce
		tween(self, {
			scaleX: 1.15,
			scaleY: 1.15
		}, {
			duration: 100,
			easing: tween.bounceOut,
			onFinish: function onFinish() {
				tween(self, {
					scaleX: 1,
					scaleY: 1
				}, {
					duration: 100
				});
			}
		});
	};
	// Handle tap
	self.down = function (x, y, obj) {
		if (self.state === 'hidden' && !game.lockInput) {
			game.onCardTapped(self);
		}
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x000000
});

/**** 
* Game Code
****/ 
// Fruit pool (all fruits with images in assets)
var fruitIds = ['banana', 'cherry', 'orange', 'grape', 'lemon', 'peach', 'strawberry', 'watermelon', 'Coconut', 'Kiwi', 'apple', 'Pear', 'Pineapple', 'Avocado', 'Daisy', 'Rock', 'Water'];
// No need to dynamically create fruit image assets, all are defined in assets section
// Game variables
var level = 1;
var maxLevel = 10;
var cards = [];
var revealedCards = [];
var matchedPairs = 0;
var totalPairs = 0;
var lives = 0;
var maxLives = 0;
var lockInput = false;
var levelText, messageText;
// Heart/lives display
var heartNodes = [];
var heartAssetName = 'heart';
// Use a heart image asset (add to assets if not present)
var heartSize = 80;
var heartSpacing = 20;
var heartMargin = 30;
// --- MENU SYSTEM ---
// Menu container
var menuContainer = new Container();
LK.gui.center.addChild(menuContainer);
// Play button with ButtonBG
var playBtnContainer = new Container();
var playBtn = new Text2('Play', {
	size: 140,
	fill: "#fff",
	font: "Impact"
});
playBtn.anchor.set(0.5, 0.5);
playBtn.y = 0;
var playBtnBG = LK.getAsset('ButtonBG', {
	anchorX: 0.5,
	anchorY: 0.5
});
playBtnBG.width = playBtn.width + 80;
playBtnBG.height = playBtn.height + 60;
playBtnBG.x = 0;
playBtnBG.y = 0;
playBtnContainer.addChild(playBtnBG);
playBtnContainer.addChild(playBtn);
playBtnContainer.y = -120;
menuContainer.addChild(playBtnContainer);
// Settings button with ButtonBG
var settingsBtnContainer = new Container();
var settingsBtn = new Text2('Settings', {
	size: 100,
	fill: "#fff",
	font: "Impact"
});
settingsBtn.anchor.set(0.5, 0.5);
settingsBtn.y = 0;
var settingsBtnBG = LK.getAsset('ButtonBG', {
	anchorX: 0.5,
	anchorY: 0.5
});
settingsBtnBG.width = settingsBtn.width + 80;
settingsBtnBG.height = settingsBtn.height + 60;
settingsBtnBG.x = 0;
settingsBtnBG.y = 0;
settingsBtnContainer.addChild(settingsBtnBG);
settingsBtnContainer.addChild(settingsBtn);
settingsBtnContainer.y = 80;
menuContainer.addChild(settingsBtnContainer);
// Settings panel (hidden by default)
var settingsPanel = new Container();
settingsPanel.visible = false;
settingsPanel.y = 250;
menuContainer.addChild(settingsPanel);
// Sound toggle button with ButtonBG
var soundOn = true;
var soundBtnContainer = new Container();
var soundBtn = new Text2('Sound: On', {
	size: 80,
	fill: "#fff",
	font: "Impact"
});
soundBtn.anchor.set(0.5, 0.5);
soundBtn.y = 0;
var soundBtnBG = LK.getAsset('ButtonBG', {
	anchorX: 0.5,
	anchorY: 0.5
});
soundBtnBG.width = soundBtn.width + 80;
soundBtnBG.height = soundBtn.height + 60;
soundBtnBG.x = 0;
soundBtnBG.y = 0;
soundBtnContainer.addChild(soundBtnBG);
soundBtnContainer.addChild(soundBtn);
soundBtnContainer.y = 0;
settingsPanel.addChild(soundBtnContainer);
// Music toggle button with ButtonBG
var musicOn = true;
var musicBtnContainer = new Container();
var musicBtn = new Text2('Music: On', {
	size: 80,
	fill: "#fff",
	font: "Impact"
});
musicBtn.anchor.set(0.5, 0.5);
musicBtn.y = 0;
var musicBtnBG = LK.getAsset('ButtonBG', {
	anchorX: 0.5,
	anchorY: 0.5
});
musicBtnBG.width = musicBtn.width + 80;
musicBtnBG.height = musicBtn.height + 60;
musicBtnBG.x = 0;
musicBtnBG.y = 0;
musicBtnContainer.addChild(musicBtnBG);
musicBtnContainer.addChild(musicBtn);
musicBtnContainer.y = 120;
settingsPanel.addChild(musicBtnContainer);
// Menu logic
var menuActive = true;
function showMenu() {
	menuContainer.visible = true;
	levelText.visible = false;
	messageText.visible = false;
	pauseBtnContainer.visible = false;
	pauseMenuContainer.visible = false;
	// Hide all cards and hearts if present
	for (var i = 0; i < cards.length; i++) {
		cards[i].visible = false;
	}
	for (var i = 0; i < heartNodes.length; i++) {
		heartNodes[i].visible = false;
	}
	menuActive = true;
	lockInput = true;
	game.lockInput = true;
}
function hideMenu() {
	menuContainer.visible = false;
	levelText.visible = true;
	pauseBtnContainer.visible = true;
	pauseMenuContainer.visible = false;
	for (var i = 0; i < cards.length; i++) {
		cards[i].visible = true;
	}
	for (var i = 0; i < heartNodes.length; i++) {
		heartNodes[i].visible = true;
	}
	menuActive = false;
	lockInput = false;
	game.lockInput = false;
}
// Play button handler
playBtnContainer.down = function (x, y, obj) {
	if (soundOn) LK.getSound('Click').play();
	hideMenu();
	// Start/restart game
	startLevel(1);
};
// Settings button handler
settingsBtnContainer.down = function (x, y, obj) {
	if (soundOn) LK.getSound('Click').play();
	settingsPanel.visible = !settingsPanel.visible;
};
// Sound toggle handler
soundBtnContainer.down = function (x, y, obj) {
	if (soundOn) LK.getSound('Click').play();
	soundOn = !soundOn;
	soundBtn.setText('Sound: ' + (soundOn ? 'On' : 'Off'));
	LK.setSoundEnabled && LK.setSoundEnabled(soundOn);
};
// Music toggle handler
musicBtnContainer.down = function (x, y, obj) {
	if (soundOn) LK.getSound('Click').play();
	musicOn = !musicOn;
	musicBtn.setText('Music: ' + (musicOn ? 'On' : 'Off'));
	LK.setMusicEnabled && LK.setMusicEnabled(musicOn);
};
// --- END MENU SYSTEM ---
// GUI setup
levelText = new Text2('Level 1', {
	size: 90,
	fill: "#fff"
});
levelText.anchor.set(0.5, 0);
// We'll position these below the cards after the board is created, so just add to game for now
game.addChild(levelText);
// Message text (centered, for "Level X", "You Win", etc)
messageText = new Text2('', {
	size: 140,
	fill: "#fff"
});
messageText.anchor.set(0.5, 0.5);
LK.gui.center.addChild(messageText);
messageText.visible = false;
// --- PAUSE BUTTON & PAUSE MENU ---
// Create a container for the pause button and its background
var pauseBtnContainer = new Container();
// Add ButtonBG image as background
var pauseBtnBG = LK.getAsset('ButtonBG', {
	anchorX: 0.5,
	anchorY: 0.5
});
pauseBtnContainer.addChild(pauseBtnBG);
// Create the pause button text
var pauseBtn = new Text2('Pause', {
	size: 80,
	fill: "#fff",
	font: "Impact"
});
pauseBtn.anchor.set(0.5, 0.5);
pauseBtnContainer.addChild(pauseBtn);
// Place pause button just below the Level text, even further to the right of center
pauseBtnContainer.x = 2048 / 2 + 260; // Move 260px to the right
pauseBtnContainer.y = levelText.y + levelText.height + 10; // 10px below the Level text
LK.gui.addChild(pauseBtnContainer);
pauseBtnContainer.visible = false;
// Pause menu container
var pauseMenuContainer = new Container();
pauseMenuContainer.visible = false;
LK.gui.center.addChild(pauseMenuContainer);
// Resume button with ButtonBG
var resumeBtnContainer = new Container();
var resumeBtn = new Text2('Resume', {
	size: 120,
	fill: "#fff",
	font: "Impact"
});
resumeBtn.anchor.set(0.5, 0.5);
resumeBtn.y = 0;
var resumeBtnBG = LK.getAsset('ButtonBG', {
	anchorX: 0.5,
	anchorY: 0.5
});
resumeBtnBG.width = resumeBtn.width + 80;
resumeBtnBG.height = resumeBtn.height + 60;
resumeBtnBG.x = 0;
resumeBtnBG.y = 0;
resumeBtnContainer.addChild(resumeBtnBG);
resumeBtnContainer.addChild(resumeBtn);
resumeBtnContainer.y = -100;
pauseMenuContainer.addChild(resumeBtnContainer);
// Menu button (in pause menu) with ButtonBG
var pauseMenuBtnContainer = new Container();
var pauseMenuBtn = new Text2('Menu', {
	size: 120,
	fill: "#fff",
	font: "Impact"
});
pauseMenuBtn.anchor.set(0.5, 0.5);
pauseMenuBtn.y = 0;
var pauseMenuBtnBG = LK.getAsset('ButtonBG', {
	anchorX: 0.5,
	anchorY: 0.5
});
pauseMenuBtnBG.width = pauseMenuBtn.width + 80;
pauseMenuBtnBG.height = pauseMenuBtn.height + 60;
pauseMenuBtnBG.x = 0;
pauseMenuBtnBG.y = 0;
pauseMenuBtnContainer.addChild(pauseMenuBtnBG);
pauseMenuBtnContainer.addChild(pauseMenuBtn);
pauseMenuBtnContainer.y = 100;
pauseMenuContainer.addChild(pauseMenuBtnContainer);
// Pause button handler
pauseBtn.down = function (x, y, obj) {
	if (soundOn) LK.getSound('Click').play();
	pauseBtnContainer.visible = false;
	pauseMenuContainer.visible = true;
	lockInput = true;
	game.lockInput = true;
	// Hide cards and hearts visually, but keep state
	for (var i = 0; i < cards.length; i++) {
		cards[i].visible = false;
	}
	for (var i = 0; i < heartNodes.length; i++) {
		heartNodes[i].visible = false;
	}
	levelText.visible = false;
	messageText.visible = false;
};
// Resume button handler
resumeBtnContainer.down = function (x, y, obj) {
	if (soundOn) LK.getSound('Click').play();
	pauseBtnContainer.visible = true;
	pauseMenuContainer.visible = false;
	lockInput = false;
	game.lockInput = false;
	for (var i = 0; i < cards.length; i++) {
		cards[i].visible = true;
	}
	for (var i = 0; i < heartNodes.length; i++) {
		heartNodes[i].visible = true;
	}
	levelText.visible = true;
	messageText.visible = false;
};
// Menu button in pause menu handler
pauseMenuBtnContainer.down = function (x, y, obj) {
	if (soundOn) LK.getSound('Click').play();
	pauseMenuContainer.visible = false;
	showMenu();
	pauseBtnContainer.visible = false;
};
// Show menu at start
showMenu();
playNextMusic();
// Layout parameters
var boardMargin = 80;
var cardSpacingX = 40;
var cardSpacingY = 40;
// Helper: shuffle array
function shuffle(array) {
	for (var i = array.length - 1; i > 0; i--) {
		var j = Math.floor(Math.random() * (i + 1));
		var t = array[i];
		array[i] = array[j];
		array[j] = t;
	}
	return array;
}
// Helper: get grid size for level
function getGridForLevel(lvl) {
	// Level 1: 2x2 (4 cards, 2 pairs)
	// Level 2: 2x3 (6 cards, 3 pairs)
	// Level 3: 2x4 (8 cards, 4 pairs)
	// Level 4: 3x4 (12 cards, 6 pairs)
	// Level 5: 4x4 (16 cards, 8 pairs)
	// Level 6: 4x5 (20 cards, 10 pairs)
	// Level 7: 5x6 (30 cards, 15 pairs)
	// Level 8: 6x6 (36 cards, 18 pairs)
	// Level 9: 6x7 (42 cards, 21 pairs)
	// Level 10: 7x8 (56 cards, 28 pairs)
	var grids = [[2, 2], [2, 3], [2, 4], [3, 4], [4, 4], [4, 5], [5, 6], [6, 6], [6, 7], [7, 8]];
	return grids[Math.min(lvl - 1, grids.length - 1)];
}
// Helper: get lives for level
function getLivesForLevel(lvl) {
	// Start with 3, increase by 1 every 2 levels, max 10
	return Math.min(10, 3 + Math.floor((lvl - 1) / 2));
}
// Start a new level
function startLevel(lvl) {
	// Clean up
	for (var i = 0; i < cards.length; i++) {
		cards[i].destroy();
	}
	cards = [];
	revealedCards = [];
	matchedPairs = 0;
	lockInput = true;
	game.lockInput = true;
	// Set level/lives
	level = lvl;
	var grid = getGridForLevel(level);
	var rows = grid[0],
		cols = grid[1];
	totalPairs = Math.floor(rows * cols / 2);
	maxLives = getLivesForLevel(level);
	lives = maxLives;
	// Update GUI
	levelText.setText('Level ' + level);
	// Remove old hearts
	for (var i = 0; i < heartNodes.length; i++) {
		if (heartNodes[i].parent) heartNodes[i].parent.removeChild(heartNodes[i]);
		heartNodes[i].destroy && heartNodes[i].destroy();
	}
	heartNodes = [];
	// Draw new hearts for current lives
	for (var i = 0; i < lives; i++) {
		var heart = LK.getAsset(heartAssetName, {
			anchorX: 0,
			anchorY: 1
		});
		// Place hearts at the bottom left, leaving a margin from the left and bottom
		heart.x = heartMargin + i * (heartSize + heartSpacing);
		heart.y = 2732 - heartMargin;
		// Add directly to the game (not GUI overlay) so it stays at the bottom left of the play area
		game.addChild(heart);
		heartNodes.push(heart);
	}
	// Prepare fruit pairs
	var fruitPool = [];
	for (var i = 0; i < totalPairs; i++) {
		var fruit = fruitIds[i % fruitIds.length];
		fruitPool.push(fruit, fruit);
	}
	shuffle(fruitPool);
	// Card size
	var cardW = LK.getAsset('cardBack', {}).width;
	var cardH = LK.getAsset('cardBack', {}).height;
	// Board size
	var boardW = cols * cardW + (cols - 1) * cardSpacingX;
	var boardH = rows * cardH + (rows - 1) * cardSpacingY;
	var startX = (2048 - boardW) / 2 + cardW / 2;
	var startY = (2732 - boardH) / 2 + cardH / 2 + 60;
	// Position levelText and livesText below the cards
	levelText.x = 2048 / 2;
	levelText.y = startY + boardH / 2 + cardH / 2 + 40;
	// Create cards
	var idx = 0;
	for (var r = 0; r < rows; r++) {
		for (var c = 0; c < cols; c++) {
			if (idx >= fruitPool.length) continue;
			var card = new Card();
			card.setFruit(fruitPool[idx]);
			card.x = startX + c * (cardW + cardSpacingX);
			card.y = startY + r * (cardH + cardSpacingY);
			card.scaleX = 1;
			card.scaleY = 1;
			game.addChild(card);
			cards.push(card);
			idx++;
		}
	}
	// Show all cards for a few seconds, increasing with level
	var showDuration = 1200 + (level - 1) * 500; // e.g. 1.2s + 0.5s per level
	for (var i = 0; i < cards.length; i++) {
		cards[i].front.visible = true;
		cards[i].back.visible = false;
		cards[i].state = 'revealed';
		cards[i].scaleX = 1;
		cards[i].scaleY = 1;
	}
	// Move messageText below the cards, centered
	messageText.x = 2048 / 2;
	messageText.y = levelText.y + levelText.height + 40;
	messageText.setText('Level ' + level);
	messageText.visible = true;
	lockInput = true;
	game.lockInput = true;
	// After showDuration, hide all cards and allow input
	LK.setTimeout(function () {
		for (var i = 0; i < cards.length; i++) {
			cards[i].front.visible = false;
			cards[i].back.visible = true;
			cards[i].state = 'hidden';
			cards[i].scaleX = 1;
			cards[i].scaleY = 1;
		}
		messageText.visible = false;
		lockInput = false;
		game.lockInput = false;
	}, showDuration);
}
// Card tap handler
game.onCardTapped = function (card) {
	if (lockInput || card.state !== 'hidden') return;
	card.reveal();
	revealedCards.push(card);
	if (revealedCards.length === 2) {
		lockInput = true;
		game.lockInput = true;
		var c1 = revealedCards[0],
			c2 = revealedCards[1];
		if (c1.fruitId === c2.fruitId) {
			// Match!
			LK.setTimeout(function () {
				c1.match();
				c2.match();
				matchedPairs++;
				revealedCards = [];
				lockInput = false;
				game.lockInput = false;
				// Check win
				if (matchedPairs === totalPairs) {
					if (level === maxLevel) {
						// Game completed!
						messageText.setText('You Win!');
						messageText.visible = true;
						LK.setTimeout(function () {
							messageText.visible = false;
							LK.showYouWin();
						}, 1200);
					} else {
						// Next level
						messageText.setText('Level Complete!');
						messageText.visible = true;
						LK.setTimeout(function () {
							messageText.visible = false;
							startLevel(level + 1);
						}, 1200);
					}
				}
			}, 350);
		} else {
			// Not a match
			LK.setTimeout(function () {
				c1.hide();
				c2.hide();
				revealedCards = [];
				lives--;
				// Update hearts: hide one for each lost life
				for (var i = 0; i < heartNodes.length; i++) {
					heartNodes[i].visible = i < lives;
				}
				lockInput = false;
				game.lockInput = false;
				if (lives <= 0) {
					// Game over
					messageText.setText('Game Over');
					messageText.visible = true;
					LK.setTimeout(function () {
						messageText.visible = false;
						LK.showGameOver();
					}, 1200);
				}
			}, 650);
		}
	}
};
// Prevent interaction when locked
game.down = function (x, y, obj) {
	// No-op: all input handled by Card.down
};
game.move = function (x, y, obj) {};
game.up = function (x, y, obj) {};
// Start first level only after Play is clicked
// (Do not start here; handled by playBtn.down)
// No need for game.update, all logic is event-driven;
// --- MUSIC LOOP LOGIC ---
var musicTracks = ['BGMusic1', 'BGMusic2'];
var currentMusicIndex = 0;
var musicLoopTimeout = null;
// Play the next music track in the sequence, looping back to start
function playNextMusic() {
	if (!musicOn) return;
	// Defensive: check musicTracks is array and currentMusicIndex is valid
	if (!musicTracks || !Array.isArray(musicTracks) || musicTracks.length === 0) return;
	if (typeof currentMusicIndex !== "number" || currentMusicIndex < 0 || currentMusicIndex >= musicTracks.length) {
		currentMusicIndex = 0;
	}
	var track = musicTracks[currentMusicIndex];
	if (!track) return;
	// Stop any currently playing music
	LK.stopMusic && LK.stopMusic();
	// Play the current track, not looping
	LK.playMusic(track, {
		loop: false
	});
	// Get duration in ms (LK.init.music uses start/end as 0-1, so we can't get duration directly, so hardcode fallback)
	// If you have access to duration, use it. Otherwise, use a safe default (e.g. 60000ms)
	var durations = {
		'BGMusic1': 60000,
		'BGMusic2': 60000
	};
	var duration = durations[track] || 60000;
	// Schedule next track
	musicLoopTimeout = LK.setTimeout(function () {
		currentMusicIndex = (currentMusicIndex + 1) % musicTracks.length;
		playNextMusic();
	}, duration - 100); // Start next track just before current ends
}
// Stop the music loop and any scheduled next track
function stopMusicLoop() {
	if (musicLoopTimeout) {
		LK.clearTimeout(musicLoopTimeout);
		musicLoopTimeout = null;
	}
	LK.stopMusic && LK.stopMusic();
}
// When music is toggled, start/stop music loop accordingly
musicBtnContainer.down = function (x, y, obj) {
	if (soundOn) LK.getSound('Click').play();
	musicOn = !musicOn;
	musicBtn.setText('Music: ' + (musicOn ? 'On' : 'Off'));
	LK.setMusicEnabled && LK.setMusicEnabled(musicOn);
	if (musicOn) {
		playNextMusic();
	} else {
		stopMusicLoop();
	}
};
// When menu is shown, stop music loop