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

/**** 
* Classes
****/ 
// FollowCircle: For "follow the path" notes (future extension, not used in MVP)
var FollowCircle = Container.expand(function () {
	var self = Container.call(this);
	var circle = self.attachAsset('followCircle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	circle.alpha = 0.8;
	return self;
});
// HitCircle: Tap or Hold circle
var HitCircle = Container.expand(function () {
	var self = Container.call(this);
	// Attach approach circle (shrinks towards hit time)
	var approach = self.attachAsset('approachCircle', {
		anchorX: 0.5,
		anchorY: 0.5
	});
	approach.alpha = 0.5;
	// Generate a random color for this hit circle
	self.circleColor = Math.floor(Math.random() * 0xFFFFFF);
	// Attach main hit circle with random color
	var circle = self.attachAsset('hitCircle', {
		anchorX: 0.5,
		anchorY: 0.5,
		color: self.circleColor
	});
	circle.alpha = 1;
	// Text for number or timing
	var label = new Text2('', {
		size: 80,
		fill: 0x222222
	});
	label.anchor.set(0.5, 0.5);
	self.addChild(label);
	self.hitTime = 0; // ms
	self.type = 'tap'; // 'tap' | 'hold'
	self.holdDuration = 0; // ms, for hold notes
	self.hit = false;
	self.held = false;
	self.completed = false;
	self.index = 0; // for combo display
	self.setType = function (type, holdDuration) {
		self.type = type;
		if (type === 'hold') {
			self.holdDuration = holdDuration;
		}
	};
	self.setLabel = function (txt) {
		label.setText(txt);
	};
	self.setApproachScale = function (scale) {
		approach.scaleX = scale;
		approach.scaleY = scale;
	};
	self.setCircleAlpha = function (a) {
		circle.alpha = a;
	};
	self.flash = function (color, duration) {
		LK.effects.flashObject(circle, color, duration);
	};
	self.hideApproach = function () {
		approach.visible = false;
	};
	self.hideHoldRing = function () {
		// No-op: hold ring removed
	};
	self.destroySelf = function () {
		self.destroy();
	};
	return self;
});

/**** 
* Initialize Game
****/ 
var game = new LK.Game({
	backgroundColor: 0x181c24
});

/**** 
* Game Code
****/ 
// Music (placeholder, actual music asset will be loaded by LK)
// Sounds (placeholders, actual sound assets will be loaded by LK)
// Circles: main hit objects
// --- Rhythm Map Data: Auto-generate 80 RPM hit circles ---
// 80 RPM = 80/60 = 1.333... per second, so interval = 60/80 = 0.75s = 750ms
// We'll generate enough for the song duration (default 10s)
var rhythmMap = [];
var rpm = 80;
var interval = 60000 / rpm; // ms per beat
var numCircles = Math.floor(10000 / interval); // songDuration is 10000ms
for (var i = 0; i < numCircles; i++) {
	// Distribute positions in a circle pattern for variety
	var angle = i / numCircles * Math.PI * 2;
	var radius = 600;
	var centerX = 1024;
	var centerY = 1400;
	var x = Math.round(centerX + Math.cos(angle) * radius);
	var y = Math.round(centerY + Math.sin(angle) * radius);
	rhythmMap.push({
		time: Math.round(1200 + i * interval),
		x: x,
		y: y,
		type: 'tap'
	});
}
// --- Game State ---
var hitObjects = []; // All active hit circles
var currentIndex = 0; // Next object to spawn
var startTime = 0; // ms, when song started
var playing = false;
var score = 0;
var combo = 0;
var maxCombo = 0;
var lastTapTime = 0;
var lastTapObj = null;
var holdActive = null; // Currently held hold note
var holdStartTime = 0;
var holdBroken = false;
var songDuration = 10000; // ms, for MVP
var approachTime = 900; // ms, time for approach circle to shrink
var hitWindow = 320; // ms, allowed timing error for "perfect" (increased)
var goodWindow = 500; // ms, allowed for "good" (increased)
var missWindow = 700; // ms, after this it's a miss (increased)
// --- UI Elements ---
var scoreTxt = new Text2('0', {
	size: 120,
	fill: 0xFFFFFF
});
scoreTxt.anchor.set(0.5, 0);
LK.gui.top.addChild(scoreTxt);
var comboBg = LK.getAsset('comboTextBg', {
	anchorX: 0.5,
	anchorY: 0.5,
	x: 1024,
	y: 300
});
comboBg.alpha = 0.7;
game.addChild(comboBg);
var comboTxt = new Text2('', {
	size: 90,
	fill: 0x00FF99
});
comboTxt.anchor.set(0.5, 0.5);
comboTxt.x = 1024;
comboTxt.y = 300;
game.addChild(comboTxt);
// --- Start Game ---
function startGame() {
	// Reset state
	for (var i = 0; i < hitObjects.length; i++) hitObjects[i].destroySelf();
	hitObjects = [];
	currentIndex = 0;
	score = 0;
	combo = 0;
	maxCombo = 0;
	holdActive = null;
	holdBroken = false;
	scoreTxt.setText('0');
	comboTxt.setText('');
	comboBg.visible = false;
	startTime = Date.now();
	playing = true;
	LK.setScore(0);
	LK.stopMusic();
	LK.playMusic('song1');
}
startGame();
// --- Spawning Hit Circles ---
function spawnHitObject(obj, idx) {
	var hc = new HitCircle();
	hc.x = obj.x;
	hc.y = obj.y;
	hc.hitTime = obj.time;
	hc.index = idx + 1;
	// Set label to (idx mod 8) + 1, so it loops 1-8
	var circleNum = idx % 8 + 1;
	hc.setLabel(circleNum + '');
	// Define a palette of 8 distinct colors (looped)
	var palette = [0xff5555,
	// red
	0xffc300,
	// yellow
	0x4dd0e1,
	// cyan
	0x81c784,
	// green
	0xba68c8,
	// purple
	0xff8a65,
	// orange
	0x90caf9,
	// blue
	0xf06292 // pink
	];
	var colorIdx = (circleNum - 1) % palette.length;
	var color = palette[colorIdx];
	// Set the hit circle's color to match its number
	if (hc.children && hc.children.length > 1) {
		hc.children[1].tint = color;
	}
	hc.circleColor = color;
	if (obj.type === 'hold') {
		hc.setType('hold', obj.hold);
	}
	// Start approach circle at a larger scale for more dramatic appearance
	hc.setApproachScale(1.5);
	game.addChild(hc);
	hitObjects.push(hc);
}
// --- Scoring ---
function addScore(val) {
	score += val;
	LK.setScore(score);
	scoreTxt.setText(score);
}
function setCombo(val) {
	combo = val;
	if (combo > maxCombo) maxCombo = combo;
	if (combo > 1) {
		comboTxt.setText(combo + 'x');
		comboBg.visible = true;
	} else {
		comboTxt.setText('');
		comboBg.visible = false;
	}
}
// --- Judgement Feedback ---
function showJudgement(hc, type) {
	var txt = '';
	var color = 0xffffff;
	if (type === 'perfect') {
		txt = 'Perfect!';
		color = 0x00ff99;
	} else if (type === 'good') {
		txt = 'Good';
		color = 0xffe066;
	} else if (type === 'miss') {
		txt = 'Miss';
		color = 0xff3333;
	}
	var judge = new Text2(txt, {
		size: 90,
		fill: 0xFFFFFF
	});
	judge.anchor.set(0.5, 0.5);
	judge.x = hc.x;
	judge.y = hc.y - 120;
	game.addChild(judge);
	tween(judge, {
		alpha: 0,
		y: hc.y - 220
	}, {
		duration: 600,
		easing: tween.easeOut,
		onFinish: function onFinish() {
			judge.destroy();
		}
	});
	LK.effects.flashObject(hc, color, 200);
}
// --- Input Handling ---
game.down = function (x, y, obj) {
	if (!playing) return;
	var now = Date.now();
	var found = false;
	for (var i = 0; i < hitObjects.length; i++) {
		var hc = hitObjects[i];
		if (hc.hit) continue;
		// Only allow tap if within approach window
		var dt = now - startTime - hc.hitTime;
		if (Math.abs(dt) > missWindow + 200) continue;
		// Check if tap is inside circle
		var dx = x - hc.x;
		var dy = y - hc.y;
		var r = hc.width / 2;
		if (dx * dx + dy * dy < r * r) {
			found = true;
			if (hc.type === 'tap') {
				judgeTap(hc, dt);
			} else if (hc.type === 'hold') {
				// Start hold
				if (Math.abs(dt) <= hitWindow) {
					holdActive = hc;
					holdStartTime = now;
					holdBroken = false;
					hc.held = true;
					hc.hideApproach();
					LK.getSound('hold').play();
				} else {
					judgeTap(hc, dt); // treat as tap if too early/late
				}
			}
			break;
		}
	}
	if (!found) {
		// Miss: tap not on any circle
		setCombo(0);
		LK.getSound('miss').play();
	}
};
game.up = function (x, y, obj) {
	if (holdActive && holdActive.held && !holdActive.completed) {
		var now = Date.now();
		var heldTime = now - holdStartTime;
		if (heldTime >= holdActive.holdDuration - 120) {
			// Success
			judgeHold(holdActive, heldTime);
		} else {
			// Released too early
			holdBroken = true;
			judgeHold(holdActive, heldTime);
		}
		holdActive.held = false;
		holdActive = null;
	}
};
// --- Judgement Logic ---
function judgeTap(hc, dt) {
	if (hc.hit) return;
	var absdt = Math.abs(dt);
	if (absdt <= hitWindow) {
		// Perfect
		addScore(300);
		setCombo(combo + 1);
		showJudgement(hc, 'perfect');
		LK.getSound('hit').play();
	} else if (absdt <= goodWindow) {
		addScore(100);
		setCombo(combo + 1);
		showJudgement(hc, 'good');
		LK.getSound('hit').play();
	} else if (absdt <= missWindow) {
		addScore(0);
		setCombo(0);
		showJudgement(hc, 'miss');
		LK.getSound('miss').play();
	} else {
		return; // too early/late, ignore
	}
	hc.hit = true;
	hc.setCircleAlpha(0.3);
	hc.hideApproach();
	tween(hc, {
		alpha: 0
	}, {
		duration: 300,
		onFinish: function onFinish() {
			hc.destroySelf();
		}
	});
}
function judgeHold(hc, heldTime) {
	if (hc.hit) return;
	if (holdBroken || heldTime < hc.holdDuration - 120) {
		// Miss
		addScore(0);
		setCombo(0);
		showJudgement(hc, 'miss');
		LK.getSound('miss').play();
	} else {
		addScore(400);
		setCombo(combo + 1);
		showJudgement(hc, 'perfect');
		LK.getSound('hit').play();
	}
	hc.hit = true;
	hc.completed = true;
	hc.setCircleAlpha(0.3);
	hc.hideHoldRing();
	tween(hc, {
		alpha: 0
	}, {
		duration: 300,
		onFinish: function onFinish() {
			hc.destroySelf();
		}
	});
}
// --- Main Update Loop ---
game.update = function () {
	if (!playing) return;
	var now = Date.now();
	var songPos = now - startTime;
	// Spawn new hit objects
	while (currentIndex < rhythmMap.length && rhythmMap[currentIndex].time - approachTime <= songPos) {
		spawnHitObject(rhythmMap[currentIndex], currentIndex);
		currentIndex++;
	}
	// Update hit objects
	for (var i = hitObjects.length - 1; i >= 0; i--) {
		var hc = hitObjects[i];
		if (hc.hit) continue;
		var dt = songPos - hc.hitTime;
		// Approach circle shrinks
		var approachScale = Math.max(0.2, 1.0 - (dt + approachTime) / approachTime);
		hc.setApproachScale(approachScale);
		// Missed?
		if (dt > missWindow && !hc.hit) {
			// Miss
			addScore(0);
			setCombo(0);
			showJudgement(hc, 'miss');
			LK.getSound('miss').play();
			hc.hit = true;
			hc.setCircleAlpha(0.2);
			hc.hideApproach();
			tween(hc, {
				alpha: 0
			}, {
				duration: 300,
				onFinish: function onFinish() {
					hc.destroySelf();
				}
			});
		}
		// For hold notes: if held, show progress
		if (hc.type === 'hold' && hc.held && !hc.completed) {
			var heldTime = now - holdStartTime;
			if (heldTime >= hc.holdDuration) {
				judgeHold(hc, heldTime);
				holdActive = null;
			}
		}
	}
	// End of song
	if (songPos > songDuration + 1000) {
		playing = false;
		LK.showYouWin();
	}
};
// --- Music Start ---
// (Music is started in startGame)
// --- Game Over/Win Handling (handled by LK) ---
// --- Touchscreen: No keyboard controls needed ---
// --- Prevent elements in top left 100x100 px ---
comboBg.x = 1024;
comboBg.y = 300;
comboTxt.x = 1024;
comboTxt.y = 300;
// --- (Optional) Restart on game over/win ---
/*
LK.on('gameover', function(){
	startGame();
});
LK.on('youwin', function(){
	startGame();
});
*/