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

/**** 
* Classes
****/ 
var Candy = Container.expand(function (type) {
	var self = Container.call(this);
	self.candyType = type;
	self.gridX = 0;
	self.gridY = 0;
	self.isMatched = false;
	self.isMoving = false;
	var faceAssets = ['redFace', 'blueFace', 'greenFace', 'yellowFace', 'purpleFace', 'orangeFace'];
	var faceGraphics = self.attachAsset(faceAssets[type], {
		anchorX: 0.5,
		anchorY: 0.5,
		scaleX: 0.8,
		scaleY: 0.8
	});
	// Create facial features based on candy type
	// Define face expressions for each color: 0=red(happy), 1=blue(sad), 2=green(happy), 3=yellow(sad), 4=purple(happy), 5=orange(sad)
	var faceExpressions = [true, false, true, false, true, false]; // true=happy, false=sad
	var isHappy = faceExpressions[type] || false;
	// Eyes
	var leftEye = self.attachAsset(isHappy ? 'happyEye' : 'sadEye', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	leftEye.x = -30;
	leftEye.y = -20;
	var rightEye = self.attachAsset(isHappy ? 'happyEye' : 'sadEye', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	rightEye.x = 30;
	rightEye.y = -20;
	// Mouth
	var mouth = self.attachAsset(isHappy ? 'happyMouth' : 'sadMouth', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	mouth.x = 0;
	mouth.y = 30;
	mouth.scaleY = isHappy ? 1 : -1; // Flip sad mouth upside down
	self.faceGraphics = faceGraphics;
	self.setGridPosition = function (gridX, gridY) {
		self.gridX = gridX;
		self.gridY = gridY;
		self.x = GRID_START_X + gridX * CELL_SIZE + CELL_SIZE / 2;
		self.y = GRID_START_Y + gridY * CELL_SIZE + CELL_SIZE / 2;
	};
	self.animateToPosition = function (targetX, targetY, duration, callback) {
		self.isMoving = true;
		tween(self, {
			x: targetX,
			y: targetY
		}, {
			duration: duration || 300,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				self.isMoving = false;
				if (callback) callback();
			}
		});
	};
	self.markMatched = function () {
		self.isMatched = true;
		// Create explosion effect with scale bounce and color flash
		tween(self, {
			scaleX: 1.5,
			scaleY: 1.5
		}, {
			duration: 100,
			easing: tween.easeOut,
			onFinish: function onFinish() {
				// Flash the face bright white
				tween(self.faceGraphics, {
					tint: 0xFFFFFF
				}, {
					duration: 50,
					onFinish: function onFinish() {
						// Scale down and fade out
						tween(self, {
							scaleX: 0,
							scaleY: 0,
							alpha: 0
						}, {
							duration: 150,
							easing: tween.easeIn,
							onFinish: function onFinish() {
								self.destroy();
							}
						});
					}
				});
			}
		});
	};
	return self;
});
var GridCell = Container.expand(function (gridX, gridY) {
	var self = Container.call(this);
	self.gridX = gridX;
	self.gridY = gridY;
	var cellBackground = self.attachAsset('gridBackground', {
		anchorX: 0.5,
		anchorY: 0.5,
		alpha: 0.3
	});
	self.x = GRID_START_X + gridX * CELL_SIZE + CELL_SIZE / 2;
	self.y = GRID_START_Y + gridY * CELL_SIZE + CELL_SIZE / 2;
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x2a1810
});

/**** 
* Game Code
****/ 
var GRID_SIZE = 8;
var CELL_SIZE = 250;
var GRID_START_X = (2048 - GRID_SIZE * CELL_SIZE) / 2;
var GRID_START_Y = 400;
var grid = [];
var candies = [];
var selectedCandy = null;
var isProcessing = false;
var movesLeft = 30;
var targetScore = 1000;
var currentScore = 0;
var currentLevel = 1;
var maxLevel = 10;
// Level configurations
var levelConfigs = [{
	moves: 30,
	target: 1000,
	colors: 4
},
// Level 1
{
	moves: 25,
	target: 1500,
	colors: 4
},
// Level 2
{
	moves: 25,
	target: 2000,
	colors: 5
},
// Level 3
{
	moves: 20,
	target: 2500,
	colors: 5
},
// Level 4
{
	moves: 20,
	target: 3000,
	colors: 5
},
// Level 5
{
	moves: 18,
	target: 3500,
	colors: 6
},
// Level 6
{
	moves: 18,
	target: 4000,
	colors: 6
},
// Level 7
{
	moves: 15,
	target: 4500,
	colors: 6
},
// Level 8
{
	moves: 15,
	target: 5000,
	colors: 6
},
// Level 9
{
	moves: 12,
	target: 6000,
	colors: 6
} // Level 10
];
// Initialize UI
var scoreText = new Text2('Score: 0', {
	size: 80,
	fill: 0xFFFFFF
});
scoreText.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreText);
scoreText.y = 150;
var movesText = new Text2('Moves: 30', {
	size: 80,
	fill: 0xFFFFFF
});
movesText.anchor.set(0.5, 0);
LK.gui.top.addChild(movesText);
movesText.y = 250;
var targetText = new Text2('Target: 1000', {
	size: 60,
	fill: 0xFFFF00
});
targetText.anchor.set(0.5, 0);
LK.gui.top.addChild(targetText);
targetText.y = 350;
var levelText = new Text2('Level: 1', {
	size: 80,
	fill: 0x00FFFF
});
levelText.anchor.set(0.5, 0);
LK.gui.top.addChild(levelText);
levelText.y = 50;
// Initialize grid
function initializeGrid() {
	// Create grid cells
	for (var x = 0; x < GRID_SIZE; x++) {
		grid[x] = [];
		for (var y = 0; y < GRID_SIZE; y++) {
			var cell = new GridCell(x, y);
			game.addChild(cell);
			grid[x][y] = null;
		}
	}
	// Fill grid with candies
	fillGrid();
}
function fillGrid() {
	var numColors = levelConfigs[currentLevel - 1].colors;
	for (var x = 0; x < GRID_SIZE; x++) {
		for (var y = 0; y < GRID_SIZE; y++) {
			if (grid[x][y] === null) {
				var candyType = Math.floor(Math.random() * numColors);
				var candy = new Candy(candyType);
				candy.setGridPosition(x, y);
				grid[x][y] = candy;
				candies.push(candy);
				game.addChild(candy);
			}
		}
	}
}
function getCandyAt(x, y) {
	if (x < 0 || x >= GRID_SIZE || y < 0 || y >= GRID_SIZE) return null;
	return grid[x][y];
}
function isValidSwap(candy1, candy2) {
	var dx = Math.abs(candy1.gridX - candy2.gridX);
	var dy = Math.abs(candy1.gridY - candy2.gridY);
	return dx === 1 && dy === 0 || dx === 0 && dy === 1;
}
function swapCandies(candy1, candy2) {
	if (!candy1 || !candy2 || !isValidSwap(candy1, candy2)) return false;
	var tempX = candy1.gridX;
	var tempY = candy1.gridY;
	grid[candy1.gridX][candy1.gridY] = candy2;
	grid[candy2.gridX][candy2.gridY] = candy1;
	candy1.gridX = candy2.gridX;
	candy1.gridY = candy2.gridY;
	candy2.gridX = tempX;
	candy2.gridY = tempY;
	var targetX1 = GRID_START_X + candy1.gridX * CELL_SIZE + CELL_SIZE / 2;
	var targetY1 = GRID_START_Y + candy1.gridY * CELL_SIZE + CELL_SIZE / 2;
	var targetX2 = GRID_START_X + candy2.gridX * CELL_SIZE + CELL_SIZE / 2;
	var targetY2 = GRID_START_Y + candy2.gridY * CELL_SIZE + CELL_SIZE / 2;
	candy1.animateToPosition(targetX1, targetY1, 300);
	candy2.animateToPosition(targetX2, targetY2, 300);
	LK.getSound('swap').play();
	return true;
}
function findMatches() {
	var matches = [];
	// Check horizontal matches
	for (var y = 0; y < GRID_SIZE; y++) {
		var count = 1;
		var currentType = grid[0][y] ? grid[0][y].candyType : -1;
		for (var x = 1; x < GRID_SIZE; x++) {
			var candy = grid[x][y];
			if (candy && candy.candyType === currentType) {
				count++;
			} else {
				if (count >= 3) {
					for (var i = x - count; i < x; i++) {
						matches.push(grid[i][y]);
					}
				}
				count = 1;
				currentType = candy ? candy.candyType : -1;
			}
		}
		if (count >= 3) {
			for (var i = GRID_SIZE - count; i < GRID_SIZE; i++) {
				matches.push(grid[i][y]);
			}
		}
	}
	// Check vertical matches
	for (var x = 0; x < GRID_SIZE; x++) {
		var count = 1;
		var currentType = grid[x][0] ? grid[x][0].candyType : -1;
		for (var y = 1; y < GRID_SIZE; y++) {
			var candy = grid[x][y];
			if (candy && candy.candyType === currentType) {
				count++;
			} else {
				if (count >= 3) {
					for (var i = y - count; i < y; i++) {
						matches.push(grid[x][i]);
					}
				}
				count = 1;
				currentType = candy ? candy.candyType : -1;
			}
		}
		if (count >= 3) {
			for (var i = GRID_SIZE - count; i < GRID_SIZE; i++) {
				matches.push(grid[x][i]);
			}
		}
	}
	return matches;
}
function removeMatches(matches) {
	if (matches.length === 0) return;
	LK.getSound('match').play();
	for (var i = 0; i < matches.length; i++) {
		var candy = matches[i];
		if (candy && !candy.isMatched) {
			candy.markMatched();
			grid[candy.gridX][candy.gridY] = null;
			// Remove from candies array
			var candyIndex = candies.indexOf(candy);
			if (candyIndex !== -1) {
				candies.splice(candyIndex, 1);
			}
			// Add to score
			currentScore += 10;
		}
	}
	updateUI();
}
function applyGravity() {
	var moved = false;
	for (var x = 0; x < GRID_SIZE; x++) {
		for (var y = GRID_SIZE - 1; y >= 0; y--) {
			if (grid[x][y] === null) {
				// Find candy above to fall down
				for (var checkY = y - 1; checkY >= 0; checkY--) {
					if (grid[x][checkY] !== null) {
						var candy = grid[x][checkY];
						grid[x][y] = candy;
						grid[x][checkY] = null;
						candy.gridY = y;
						var targetY = GRID_START_Y + y * CELL_SIZE + CELL_SIZE / 2;
						candy.animateToPosition(candy.x, targetY, 300);
						moved = true;
						break;
					}
				}
			}
		}
	}
	return moved;
}
function addNewCandies() {
	var added = false;
	var numColors = levelConfigs[currentLevel - 1].colors;
	for (var x = 0; x < GRID_SIZE; x++) {
		for (var y = 0; y < GRID_SIZE; y++) {
			if (grid[x][y] === null) {
				var candyType = Math.floor(Math.random() * numColors);
				var candy = new Candy(candyType);
				candy.gridX = x;
				candy.gridY = y;
				candy.x = GRID_START_X + x * CELL_SIZE + CELL_SIZE / 2;
				candy.y = GRID_START_Y - CELL_SIZE;
				var targetY = GRID_START_Y + y * CELL_SIZE + CELL_SIZE / 2;
				candy.animateToPosition(candy.x, targetY, 400);
				grid[x][y] = candy;
				candies.push(candy);
				game.addChild(candy);
				added = true;
			}
		}
	}
	return added;
}
function initializeLevel(level) {
	var config = levelConfigs[level - 1];
	movesLeft = config.moves;
	targetScore = config.target;
	currentScore = 0;
	// Clear existing candies
	for (var i = candies.length - 1; i >= 0; i--) {
		candies[i].destroy();
	}
	candies = [];
	// Clear grid
	for (var x = 0; x < GRID_SIZE; x++) {
		for (var y = 0; y < GRID_SIZE; y++) {
			grid[x][y] = null;
		}
	}
	// Fill with new candies
	fillGrid();
	updateUI();
}
function nextLevel() {
	if (currentLevel < maxLevel) {
		currentLevel++;
		initializeLevel(currentLevel);
		// Show level complete animation
		LK.effects.flashScreen(0x00FF00, 500);
	} else {
		// All levels completed
		LK.setTimeout(function () {
			LK.showYouWin();
		}, 1000);
	}
}
function updateUI() {
	scoreText.setText('Score: ' + currentScore);
	movesText.setText('Moves: ' + movesLeft);
	levelText.setText('Level: ' + currentLevel);
	targetText.setText('Target: ' + targetScore);
	if (currentScore >= targetScore) {
		LK.setTimeout(function () {
			nextLevel();
		}, 1000);
	} else if (movesLeft <= 0) {
		LK.setTimeout(function () {
			LK.showGameOver();
		}, 1000);
	}
}
function processMatches() {
	if (isProcessing) return;
	isProcessing = true;
	var matches = findMatches();
	if (matches.length > 0) {
		removeMatches(matches);
		LK.setTimeout(function () {
			var gravityMoved = applyGravity();
			var newCandiesAdded = addNewCandies();
			if (gravityMoved || newCandiesAdded) {
				LK.setTimeout(function () {
					isProcessing = false;
					processMatches();
				}, 500);
			} else {
				isProcessing = false;
			}
		}, 300);
	} else {
		isProcessing = false;
	}
}
game.down = function (x, y, obj) {
	if (isProcessing) return;
	var gridX = Math.floor((x - GRID_START_X) / CELL_SIZE);
	var gridY = Math.floor((y - GRID_START_Y) / CELL_SIZE);
	var candy = getCandyAt(gridX, gridY);
	if (!candy) return;
	if (selectedCandy === null) {
		selectedCandy = candy;
		tween(candy, {
			scaleX: 1.1,
			scaleY: 1.1
		}, {
			duration: 200
		});
	} else if (selectedCandy === candy) {
		tween(selectedCandy, {
			scaleX: 0.8,
			scaleY: 0.8
		}, {
			duration: 200
		});
		selectedCandy = null;
	} else {
		if (isValidSwap(selectedCandy, candy)) {
			var oldSelected = selectedCandy;
			tween(selectedCandy, {
				scaleX: 0.8,
				scaleY: 0.8
			}, {
				duration: 200
			});
			selectedCandy = null;
			if (swapCandies(oldSelected, candy)) {
				LK.setTimeout(function () {
					var matches = findMatches();
					if (matches.length > 0) {
						movesLeft--;
						updateUI();
						processMatches();
					} else {
						// No matches, swap back
						swapCandies(oldSelected, candy);
					}
				}, 400);
			}
		} else {
			tween(selectedCandy, {
				scaleX: 0.8,
				scaleY: 0.8
			}, {
				duration: 200
			});
			selectedCandy = candy;
			tween(candy, {
				scaleX: 1.1,
				scaleY: 1.1
			}, {
				duration: 200
			});
		}
	}
};
// Initialize the game
initializeGrid();
initializeLevel(currentLevel);
game.update = function () {
	// Game loop updates handled by individual candy animations and match processing
};