var player;
var needCanvasUpdate = true;
var gameEnded = false;
var scrolled = false;

// Don't change this
const TMT_VERSION = {
	tmtNum: "2.π",
	tmtName: "Incrementally Updated"
};

function getResetGain(layer, useType = null) {
	let type = useType;
	if (!useType){
		type = tmp[layer].type;
		if (layers[layer].getResetGain !== undefined) {
			return layers[layer].getResetGain();
		}
	}
	if(tmp[layer].type == "none") {
		return new Decimal (0);
	}
	if (tmp[layer].gainExp.eq(0)) {
		return new Decimal(0);
	}
	if (type=="static") {
		if ((!tmp[layer].canBuyMax) || tmp[layer].baseAmount.lt(tmp[layer].requires)) {
			return new Decimal(1);
		}
		let gain = tmp[layer].baseAmount.div(tmp[layer].requires).div(tmp[layer].gainMult).max(1).log(tmp[layer].base).times(tmp[layer].gainExp).pow(Decimal.pow(tmp[layer].exponent, -1));
		return gain.floor().sub(player[layer].points).add(1).max(1);
	} else if (type=="normal"){
		if (tmp[layer].baseAmount.lt(tmp[layer].requires)) {
			return new Decimal(0);
		}
		let gain = tmp[layer].baseAmount.div(tmp[layer].requires).pow(tmp[layer].exponent).times(tmp[layer].gainMult).pow(tmp[layer].gainExp);
		if (gain.gte(tmp[layer].softcap)) {
			gain = gain.pow(tmp[layer].softcapPower).times(tmp[layer].softcap.pow(decimalOne.sub(tmp[layer].softcapPower)));
		}
		return gain.floor().max(0);
	} else if (type=="custom"){
		return layers[layer].getResetGain();
	} else {
		return new Decimal(0);
	}
}

function getNextAt(layer, canMax=false, useType = null) {
	let type = useType;
	if (!useType) {
		type = tmp[layer].type;
		if (layers[layer].getNextAt !== undefined) {
			return layers[layer].getNextAt(canMax);
		}

	}
	if(tmp[layer].type == "none") {
		return new Decimal (Infinity);
	}

	if (tmp[layer].gainMult.lte(0)) {
		return new Decimal(Infinity);
	}
	if (tmp[layer].gainExp.lte(0)) {
		return new Decimal(Infinity);
	}

	if (type=="static") {
		if (!tmp[layer].canBuyMax) {
			canMax = false;
		}
		let amt = player[layer].points.plus((canMax&&tmp[layer].baseAmount.gte(tmp[layer].nextAt))?tmp[layer].resetGain:0);
		let extraCost = Decimal.pow(tmp[layer].base, amt.pow(tmp[layer].exponent).div(tmp[layer].gainExp)).times(tmp[layer].gainMult);
		let cost = extraCost.times(tmp[layer].requires).max(tmp[layer].requires);
		if (tmp[layer].roundUpCost) {
			cost = cost.ceil();
		}
		return cost;
	} else if (type=="normal"){
		let next = tmp[layer].resetGain.add(1);
		if (next.gte(tmp[layer].softcap)) {
			next = next.div(tmp[layer].softcap.pow(decimalOne.sub(tmp[layer].softcapPower))).pow(decimalOne.div(tmp[layer].softcapPower));
		}
		next = next.root(tmp[layer].gainExp).div(tmp[layer].gainMult).root(tmp[layer].exponent).times(tmp[layer].requires).max(tmp[layer].requires);
		if (tmp[layer].roundUpCost) {
			next = next.ceil();
		}
		return next;
	} else if (type=="custom"){
		return layers[layer].getNextAt(canMax);
	} else {
		return new Decimal(0);
	}
}

function softcap(value, cap, power = 0.5) {
	if (value.lte(cap)) {
		return value;
	} else {
		return value.pow(power).times(cap.pow(decimalOne.sub(power)));
	}
}

// Return true if the layer should be highlighted. By default checks for upgrades only.
function shouldNotify(layer){
	if (player.tab == layer || player.navTab == layer) {
		return false;
	}
	for (id in tmp[layer].upgrades){
		if (!isNaN(id)){
			if (canAffordUpgrade(layer, id) && !hasUpgrade(layer, id) && tmp[layer].upgrades[id].unlocked){
				return true;
			}
		}
	}
	if (player[layer].activeChallenge && canCompleteChallenge(layer, player[layer].activeChallenge)) {
		return true;
	}

	if (isPlainObject(tmp[layer].tabFormat)) {
		for (subtab in tmp[layer].tabFormat){
			if (subtabShouldNotify(layer, "mainTabs", subtab)) {
				return true;
			}
		}
	}

	for (family in tmp[layer].microtabs) {
		for (subtab in tmp[layer].microtabs[family]){
			if (subtabShouldNotify(layer, family, subtab)) {
				return true;
			}
		}
	}

	return tmp[layer].shouldNotify;

}

function canReset(layer) {
	if (layers[layer].canReset!== undefined) {
		return run(layers[layer].canReset, layers[layer]);
	} else if(tmp[layer].type == "normal") {
		return tmp[layer].baseAmount.gte(tmp[layer].requires);
	} else if(tmp[layer].type== "static") {
		return tmp[layer].baseAmount.gte(tmp[layer].nextAt);
	} else {
		return false;
	}
}

function rowReset(row, layer) {
	for (lr in ROW_LAYERS[row]){
		if(layers[lr].doReset) {

			player[lr].activeChallenge = null; // Exit challenges on any row reset on an equal or higher row
			run(layers[lr].doReset, layers[lr], layer);
		} else
		if(tmp[layer].row > tmp[lr].row && row !== "side" && !isNaN(row)) {
			layerDataReset(lr);
		}
	}
}

function layerDataReset(layer, keep = []) {
	let storedData = {unlocked: player[layer].unlocked}; // Always keep unlocked

	for (thing in keep) {
		if (player[layer][keep[thing]] !== undefined) {
			storedData[keep[thing]] = player[layer][keep[thing]];
		}
	}
	Vue.set(player[layer], "buyables", getStartBuyables(layer));
	Vue.set(player[layer], "clickables", getStartClickables(layer));
	Vue.set(player[layer], "challenges", getStartChallenges(layer));

	layOver(player[layer], getStartLayerData(layer));
	player[layer].upgrades = [];
	player[layer].milestones = [];
	player[layer].achievements = [];
	player[layer].challenges = getStartChallenges(layer);
	resetBuyables(layer);

	if (layers[layer].clickables && !player[layer].clickables) {
		player[layer].clickables = getStartClickables(layer);
	}
	for (thing in storedData) {
		player[layer][thing] =storedData[thing];
	}
}

function resetBuyables(layer){
	if (layers[layer].buyables) {
		player[layer].buyables = getStartBuyables(layer);
	}
	player[layer].spentOnBuyables = new Decimal(0);
}


function addPoints(layer, gain) {
	if (isFunction(layers[layer].onAddPoints)) {
		layers[layer].onAddPoints(gain);
	}
	player[layer].points = player[layer].points.add(gain).max(0);
	if (player[layer].best) {
		player[layer].best = player[layer].best.max(player[layer].points);
	}
	if (player[layer].total) {
		player[layer].total = player[layer].total.add(gain);
	}
}

function generatePoints(layer, diff) {
	addPoints(layer, tmp[layer].resetGain.times(diff));
}

var prevOnReset;

function doReset(layer, force=false) {
	if (tmp[layer].type == "none") {
		return;
	}
	let row = tmp[layer].row;
	if (!force) {
		if (tmp[layer].baseAmount.lt(tmp[layer].requires)) {
			return;
		}
		let gain = tmp[layer].resetGain;
		if (tmp[layer].type=="static") {
			if (tmp[layer].baseAmount.lt(tmp[layer].nextAt)) {
				return;
			}
			gain =(tmp[layer].canBuyMax ? gain : 1);
		}
		if (tmp[layer].type=="custom") {
			if (!tmp[layer].canReset) {
				return;
			}
		}

		if (layers[layer].onPrestige) {
			run(layers[layer].onPrestige, layers[layer], gain);
		}

		addPoints(layer, gain);
		updateMilestones(layer);
		updateAchievements(layer);

		if (!player[layer].unlocked) {
			player[layer].unlocked = true;
			needCanvasUpdate = true;

			if (tmp[layer].increaseUnlockOrder){
				lrs = tmp[layer].increaseUnlockOrder;
				for (lr in lrs) {
					if (!player[lrs[lr]].unlocked) {
						player[lrs[lr]].unlockOrder++;
					}
				}
			}
		}

		tmp[layer].baseAmount = new Decimal(0); // quick fix
	}

	if (tmp[layer].resetsNothing) {
		return;
	}


	for (layerResetting in layers) {
		if (row >= layers[layerResetting].row && (!force || layerResetting != layer)) {
			completeChallenge(layerResetting);
		}
	}

	prevOnReset = {...player}; //Deep Copy
	player.points = (row == 0 ? new Decimal(0) : getStartPoints());

	for (let x = row; x >= 0; x--) {
		rowReset(x, layer);
	}
	rowReset("side", layer);
	prevOnReset = undefined;

	player[layer].resetTime = 0;

	updateTemp();
	updateTemp();
}

function resetRow(row) {
	if (prompt("Are you sure you want to reset this row? It is highly recommended that you wait until the end of your current run before doing this! Type \"I WANT TO RESET THIS\" to confirm")!="I WANT TO RESET THIS") {
		return;
	}
	let pre_layers = ROW_LAYERS[row-1];
	let layers = ROW_LAYERS[row];
	let post_layers = ROW_LAYERS[row+1];
	rowReset(row+1, post_layers[0]);
	doReset(pre_layers[0], true);
	for (let layer in layers) {
		player[layer].unlocked = false;
		if (player[layer].unlockOrder) {
			player[layer].unlockOrder = 0;
		}
	}
	player.points = getStartPoints();
	updateTemp();
	resizeCanvas();
}

function startChallenge(layer, x) {
	let enter = false;
	if (!player[layer].unlocked) {
		return;
	}
	if (player[layer].activeChallenge == x) {
		completeChallenge(layer, x);
		player[layer].activeChallenge = null;
	} else {
		enter = true;
	}
	doReset(layer, true);
	if(enter) {
		player[layer].activeChallenge = x;
		if (isFunction(layers[layer].challenges[x].onStart)) {
			layers[layer].challenges[x].onStart();
		}
	}

	updateChallengeTemp(layer);
}

function canCompleteChallenge(layer, x) {
	if (x != player[layer].activeChallenge) {
		return;
	}
	let challenge = tmp[layer].challenges[x];
	if (challenge.canComplete !== undefined) {
		return challenge.canComplete;
	}

	if (challenge.currencyInternalName){
		let name = challenge.currencyInternalName;
		if (challenge.currencyLocation){
			return !(challenge.currencyLocation[name].lt(challenge.goal));
		} else if (challenge.currencyLayer){
			let lr = challenge.currencyLayer;
			return !(player[lr][name].lt(challenge.goal));
		} else {
			return !(player[name].lt(challenge.goal));
		}
	} else {
		return !(player.points.lt(challenge.goal));
	}

}

function completeChallenge(layer, x) {
	var x = player[layer].activeChallenge;
	if (!x) {
		return;
	}

	let completions = canCompleteChallenge(layer, x);
	if (!completions){
		 player[layer].activeChallenge = null;
		if (isFunction(layers[layer].challenges[x].onExit)) {
			layers[layer].challenges[x].onExit();
		}
		return;
	}
	if (player[layer].challenges[x] < tmp[layer].challenges[x].completionLimit) {
		needCanvasUpdate = true;
		player[layer].challenges[x] += completions;
		player[layer].challenges[x] = Math.min(player[layer].challenges[x], tmp[layer].challenges[x].completionLimit);
		if (layers[layer].challenges[x].onComplete) {
			run(layers[layer].challenges[x].onComplete, layers[layer].challenges[x]);
		}
	}
	player[layer].activeChallenge = null;
	updateChallengeTemp(layer);
}

VERSION.withoutName = "v" + VERSION.num + (VERSION.pre ? " Pre-Release " + VERSION.pre : VERSION.pre ? " Beta " + VERSION.beta : "");
VERSION.withName = VERSION.withoutName + (VERSION.name ? ": " + VERSION.name : "");


function autobuyUpgrades(layer){
	if (!tmp[layer].upgrades) {
		return;
	}
	for (id in tmp[layer].upgrades) {
		if (isPlainObject(tmp[layer].upgrades[id]) && (layers[layer].upgrades[id].canAfford === undefined || layers[layer].upgrades[id].canAfford() === true)) {
			buyUpg(layer, id);
		}
	}
}

function gameLoop(diff) {
	if (isEndgame() || gameEnded) {
		gameEnded = 1;
	}

	if (isNaN(diff)) {
		diff = 0;
	}
	if (gameEnded && !player.keepGoing) {
		diff = 0;
		player.tab = "gameEnded";
	}

	if (maxTickLength) {
		let limit = maxTickLength();
		if(diff > limit) {
			diff = limit;
		}
	}
	addTime(diff);
	player.points = player.points.add(tmp.pointGen.times(diff)).max(0);

	for (x = 0; x <= maxRow; x++){
		for (item in TREE_LAYERS[x]) {
			let layer = TREE_LAYERS[x][item];
			player[layer].resetTime += diff;
			if (tmp[layer].passiveGeneration) {
				generatePoints(layer, diff*tmp[layer].passiveGeneration);
			}
			if (layers[layer].update) {
				layers[layer].update(diff);
			}
		}
	}

	for (row in OTHER_LAYERS){
		for (item in OTHER_LAYERS[row]) {
			let layer = OTHER_LAYERS[row][item];
			player[layer].resetTime += diff;
			if (tmp[layer].passiveGeneration) {
				generatePoints(layer, diff*tmp[layer].passiveGeneration);
			}
			if (layers[layer].update) {
				layers[layer].update(diff);
			}
		}
	}

	for (x = maxRow; x >= 0; x--){
		for (item in TREE_LAYERS[x]) {
			let layer = TREE_LAYERS[x][item];
			if (tmp[layer].autoPrestige && tmp[layer].canReset) {
				doReset(layer);
			}
			if (layers[layer].automate) {
				layers[layer].automate();
			}
			if (layers[layer].autoUpgrade) {
				autobuyUpgrades(layer);
			}
		}
	}

	for (row in OTHER_LAYERS){
		for (item in OTHER_LAYERS[row]) {
			let layer = OTHER_LAYERS[row][item];
			if (tmp[layer].autoPrestige && tmp[layer].canReset) {
				doReset(layer);
			}
			if (layers[layer].automate) {
				layers[layer].automate();
			}
			player[layer].best = player[layer].best.max(player[layer].points);
			if (layers[layer].autoUpgrade) {
				autobuyUpgrades(layer);
			}
		}
	}

	for (layer in layers){
		if (layers[layer].milestones) {
			updateMilestones(layer);
		}
		if (layers[layer].achievements) {
			updateAchievements(layer);
		}
	}

}

function hardReset() {
	if (!confirm("Are you sure you want to do this? You will lose all your progress!")) {
		return;
	}
	player = null;
	save();
	window.location.reload();
}

var ticking = false;

var interval = setInterval(function() {
	if (player===undefined||tmp===undefined) {
		return;
	}
	if (ticking) {
		return;
	}
	if (gameEnded&&!player.keepGoing) {
		return;
	}
	ticking = true;
	let now = Date.now();
	let diff = (now - player.time) / 1e3;
	if (player.offTime !== undefined) {
		if (player.offTime.remain > modInfo.offlineLimit * 3600) {
			player.offTime.remain = modInfo.offlineLimit * 3600;
		}
		if (player.offTime.remain > 0) {
			let offlineDiff = Math.max(player.offTime.remain / 10, diff);
			player.offTime.remain -= offlineDiff;
			diff += offlineDiff;
		}
		if (!player.offlineProd || player.offTime.remain <= 0) {
			player.offTime = undefined;
		}
	}
	if (player.devSpeed) {
		diff *= player.devSpeed;
	}
	player.time = now;
	if (needCanvasUpdate){
		resizeCanvas();
		needCanvasUpdate = false;
	}
	tmp.scrolled = document.getElementById("treeTab").scrollTop > 30;
	updateTemp();
	gameLoop(diff);
	fixNaNs();
	adjustPopupTime(0.05);
	ticking = false;
}, 50);

setInterval(function() {
	needCanvasUpdate = true;
}, 500);