//SPDX-License-Identifier: MIT

pragma solidity ^0.7.4;


library SafeMath {
function add(uint256 a, uint256 b) internal pure returns (uint256) {
uint256 c = a b;
require(c >= a, "SafeMath: addition overflow");

return c;
}
function sub(uint256 a, uint256 b) internal pure returns (uint256) {
return sub(a, b, "SafeMath: subtraction overflow");
}
function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b <= a, errorMessage);
uint256 c = a - b;

return c;
}
function mul(uint256 a, uint256 b) internal pure returns (uint256) {
if (a == 0) {
return 0;
}

uint256 c = a * b;
require(c / a == b, "SafeMath: multiplication overflow");

return c;
}
function div(uint256 a, uint256 b) internal pure returns (uint256) {
return div(a, b, "SafeMath: division by zero");
}
function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
// Solidity only automatically asserts when dividing by 0
require(b > 0, errorMessage);
uint256 c = a / b;
// assert(a == b * c a % b); // There is no case in which this doesn't hold

return c;
}
}

/**
* BEP20 standard interface.
*/
interface IBEP20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
function getOwner() external view returns (address);
function balanceOf(address account) external view returns (uint256);
function transfer(address recipient, uint256 amount) external returns (bool);
function allowance(address _owner, address spender) external view returns (uint256);
function approve(address spender, uint256 amount) external returns (bool);
function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
event Transfer(address indexed from, address indexed to, uint256 value);
event Approval(address indexed owner, address indexed spender, uint256 value);
}

/**
* Allows for contract ownership along with multi-address authorization
*/
abstract contract Auth {
address internal owner;
mapping (address => bool) internal authorizations;

constructor(address _owner) {
owner = _owner;
authorizations[_owner] = true;
}

/**
* Function modifier to require caller to be contract owner
*/
modifier onlyOwner() {
require(isOwner(msg.sender), "!OWNER"); _;
}

/**
* Function modifier to require caller to be authorized
*/
modifier authorized() {
require(isAuthorized(msg.sender), "!AUTHORIZED"); _;
}

/**
* Authorize address. Owner only
*/
function authorize(address adr) public onlyOwner {
authorizations[adr] = true;
emit Authorized(adr);
}

/**
* Remove address' authorization. Owner only
*/
function unauthorize(address adr) public onlyOwner {
authorizations[adr] = false;
emit Unauthorized(adr);
}

/**
* Check if address is owner
*/
function isOwner(address account) public view returns (bool) {
return account == owner;
}

/**
* Return address' authorization status
*/
function isAuthorized(address adr) public view returns (bool) {
return authorizations[adr];
}

/**
* Transfer ownership to new address. Caller must be owner. Leaves old owner authorized
*/
function transferOwnership(address payable adr) public onlyOwner {
owner = adr;
authorizations[adr] = true;
emit OwnershipTransferred(adr);
}

event OwnershipTransferred(address owner);
event Authorized(address adr);
event Unauthorized(address adr);
}

interface IDEXFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IDEXRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);

function addLiquidity(
address tokenA,
address tokenB,
uint amountADesired,
uint amountBDesired,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB, uint liquidity);

function addLiquidityETH(
address token,
uint amountTokenDesired,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external payable returns (uint amountToken, uint amountETH, uint liquidity);

function swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;

function swapExactETHForTokensSupportingFeeOnTransferTokens(
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external payable;

function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}

interface IDividendDistributor {
function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external;
function setShare(address shareholder, uint256 amount) external;
function deposit() external payable;
function process(uint256 gas) external;
}

contract DividendDistributor is IDividendDistributor {
using SafeMath for uint256;

address _token;

struct Share {
uint256 amount;
uint256 totalExcluded;
uint256 totalRealised;
}

IBEP20 BUSD = IBEP20(0xe9e7CEA3DedcA5984780Bafc599bD69ADd087D56);
address WBNB = 0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c;
IDEXRouter router;

address[] shareholders;
mapping (address => uint256) shareholderIndexes;
mapping (address => uint256) shareholderClaims;

mapping (address => Share) public shares;

uint256 public totalShares;
uint256 public totalDividends;
uint256 public totalDistributed;
uint256 public dividendsPerShare;
uint256 public dividendsPerShareAccuracyFactor = 10 ** 36;

uint256 public minPeriod = 1 hours;
uint256 public minDistribution = 1 * (10 ** 18);

uint256 currentIndex;

bool initialized;
modifier initialization() {
require(!initialized);
_;
initialized = true;
}

modifier onlyToken() {
require(msg.sender == _token); _;
}

constructor (address _router) {
router = _router != address(0)
? IDEXRouter(_router)
: IDEXRouter(0x10ED43C718714eb63d5aA57B78B54704E256024E);
_token = msg.sender;
}

function getShareholderInfo(address shareholder) external view returns (uint256, uint256, uint256, uint256) {
return (
totalShares,
totalDistributed,
shares[shareholder].amount,
shares[shareholder].totalRealised
);
}

function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external override onlyToken {
minPeriod = _minPeriod;
minDistribution = _minDistribution;

emit DistributionCriteriaUpdated(minPeriod, minDistribution);
}

function setShare(address shareholder, uint256 amount) external override onlyToken {
distributeDividend(shareholder);

if(amount > 0 && shares[shareholder].amount == 0){
addShareholder(shareholder);
}else if(amount == 0 && shares[shareholder].amount > 0){
removeShareholder(shareholder);
}

totalShares = totalShares.sub(shares[shareholder].amount).add(amount);
shares[shareholder].amount = amount;
shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);

emit ShareUpdated(shareholder, amount);
}

function deposit() external payable override {
uint256 balanceBefore = BUSD.balanceOf(address(this));

address[] memory path = new address[](2);
path[0] = WBNB;
path[1] = address(BUSD);

router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: msg.value}(
0,
path,
address(this),
block.timestamp
);

uint256 amount = BUSD.balanceOf(address(this)).sub(balanceBefore);

totalDividends = totalDividends.add(amount);
dividendsPerShare = dividendsPerShare.add(dividendsPerShareAccuracyFactor.mul(amount).div(totalShares));

emit Deposit(msg.value, amount);
}

function process(uint256 gas) external override onlyToken {
uint256 shareholderCount = shareholders.length;

if(shareholderCount == 0) { return; }

uint256 gasUsed = 0;
uint256 gasLeft = gasleft();

uint256 iterations = 0;
uint256 count = 0;

while(gasUsed < gas && iterations < shareholderCount) {
if(currentIndex >= shareholderCount){
currentIndex = 0;
}

if(shouldDistribute(shareholders[currentIndex])){
distributeDividend(shareholders[currentIndex]);
count ;
}

gasUsed = gasUsed.add(gasLeft.sub(gasleft()));
gasLeft = gasleft();
currentIndex ;
iterations ;
}

emit DividendsProcessed(iterations, count, currentIndex);
}

function shouldDistribute(address shareholder) internal view returns (bool) {
return shareholderClaims[shareholder] minPeriod < block.timestamp
&& getUnpaidEarnings(shareholder) > minDistribution;
}

function distributeDividend(address shareholder) internal {
if(shares[shareholder].amount == 0){ return; }

uint256 amount = getUnpaidEarnings(shareholder);
if(amount > 0){
totalDistributed = totalDistributed.add(amount);
BUSD.transfer(shareholder, amount);
shareholderClaims[shareholder] = block.timestamp;
shares[shareholder].totalRealised = shares[shareholder].totalRealised.add(amount);
shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);

emit Distribution(shareholder, amount);
}
}

function claimDividend() external {
distributeDividend(msg.sender);
}

function claimDividendFor(address shareholder) external {
distributeDividend(shareholder);
}

function getUnpaidEarnings(address shareholder) public view returns (uint256) {
if(shares[shareholder].amount == 0){ return 0; }

uint256 shareholderTotalDividends = getCumulativeDividends(shares[shareholder].amount);
uint256 shareholderTotalExcluded = shares[shareholder].totalExcluded;

if(shareholderTotalDividends <= shareholderTotalExcluded){ return 0; }

return shareholderTotalDividends.sub(shareholderTotalExcluded);
}

function getCumulativeDividends(uint256 share) internal view returns (uint256) {
return share.mul(dividendsPerShare).div(dividendsPerShareAccuracyFactor);
}

function addShareholder(address shareholder) internal {
shareholderIndexes[shareholder] = shareholders.length;
shareholders.push(shareholder);
}

function removeShareholder(address shareholder) internal {
shareholders[shareholderIndexes[shareholder]] = shareholders[shareholders.length-1];
shareholderIndexes[shareholders[shareholders.length-1]] = shareholderIndexes[shareholder];
shareholders.pop();
}

event DistributionCriteriaUpdated(uint256 minPeriod, uint256 minDistribution);
event ShareUpdated(address shareholder, uint256 amount);
event Deposit(uint256 amountBNB, uint256 amountBUSD);
event Distribution(address shareholder, uint256 amount);
event DividendsProcessed(uint256 iterations, uint256 count, uint256 index);
}

contract DaliGold is IBEP20, Auth {
using SafeMath for uint256;

address BUSD = 0xe9e7CEA3DedcA5984780Bafc599bD69ADd087D56;
address WBNB = 0xbb4CdB9CBd36B01bD1cBaEBF2De08d9173bc095c;
address DEAD = 0x000000000000000000000000000000000000dEaD;

string constant _name = "DaliGold";
string constant _symbol = "DLG";
uint8 constant _decimals = 9;

uint256 _totalSupply = 1000000000000 * (10 ** _decimals); // 1,000,000,000,000
uint256 public _maxTxAmount = _totalSupply / 1000; // 0.1%

mapping (address => uint256) _balances;
mapping (address => mapping (address => uint256)) _allowances;

mapping (address => bool) isFeeExempt;
mapping (address => bool) isTxLimitExempt;
mapping (address => bool) isDividendExempt;

bool feeEnabled = true;

bool autoLiquifyEnabled = true;
uint256 liquidityFee = 200;
uint256 liquidityFeeAccumulator;

uint256 buybackFee = 200;
uint256 reflectionFee = 300;
uint256 marketingFee = 300;
uint256 devFee = 200;
uint256 totalFee = 1200;
uint256 feeDenominator = 10000;

address public autoLiquidityReceiver;
address public marketingFeeReceiver;
address public devFeeReceiver;
uint256 marketingFees;
uint256 devFees;

IDEXRouter public router;
address public pair;

uint256 public launchedAt;

bool autoBuybackEnabled = false;
uint256 autoBuybackCap;
uint256 autoBuybackAccumulator;
uint256 autoBuybackAmount;
uint256 autoBuybackBlockPeriod;
uint256 autoBuybackBlockLast;

DividendDistributor public distributor;
bool autoClaimEnabled = false;
uint256 distributorGas = 500000;

bool swapEnabled = true;
uint256 swapThreshold = _totalSupply / 4000; // 0.025%

bool inSwap;
modifier swapping() { inSwap = true; _; inSwap = false; }

constructor () Auth(msg.sender) {
router = IDEXRouter(0x10ED43C718714eb63d5aA57B78B54704E256024E);
pair = IDEXFactory(router.factory()).createPair(WBNB, address(this));
_allowances[address(this)][address(router)] = uint256(-1);

distributor = new DividendDistributor(address(router));

isFeeExempt[msg.sender] = true;
isTxLimitExempt[msg.sender] = true;

isDividendExempt[pair] = true;
isDividendExempt[address(this)] = true;
isDividendExempt[DEAD] = true;

autoLiquidityReceiver = msg.sender;
marketingFeeReceiver = msg.sender;
devFeeReceiver = msg.sender;

_balances[msg.sender] = _totalSupply;
emit Transfer(address(0), msg.sender, _totalSupply);
}

receive() external payable { }

function totalSupply() external view override returns (uint256) { return _totalSupply; }
function decimals() external pure override returns (uint8) { return _decimals; }
function symbol() external pure override returns (string memory) { return _symbol; }
function name() external pure override returns (string memory) { return _name; }
function getOwner() external view override returns (address) { return owner; }
function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }

function approve(address spender, uint256 amount) public override returns (bool) {
_allowances[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}

function approveMax(address spender) external returns (bool) {
return approve(spender, uint256(-1));
}

function transfer(address recipient, uint256 amount) external override returns (bool) {
return _transferFrom(msg.sender, recipient, amount);
}

function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if(_allowances[sender][msg.sender] != uint256(-1)){
_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
}

return _transferFrom(sender, recipient, amount);
}

function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
if(inSwap){ return _basicTransfer(sender, recipient, amount); }

checkLaunched(sender);
checkTxLimit(sender, amount);

if(shouldSwapBack()){ swapBack(); }
if(shouldAutoBuyback()){ triggerAutoBuyback(); }

if(!launched() && recipient == pair){ require(_balances[sender] > 0); launch(); }

_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");

uint256 amountReceived = shouldTakeFee(sender) ? takeFee(sender, recipient, amount) : amount;
_balances[recipient] = _balances[recipient].add(amountReceived);

if(!isDividendExempt[sender]){ try distributor.setShare(sender, _balances[sender]) {} catch {} }
if(!isDividendExempt[recipient]){ try distributor.setShare(recipient, _balances[recipient]) {} catch {} }

if(autoClaimEnabled){
try distributor.process(distributorGas) {} catch {}
}

emit Transfer(sender, recipient, amountReceived);
return true;
}

function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
_balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
return true;
}

function checkLaunched(address sender) internal view {
require(launched() || isAuthorized(sender), "Pre-Launch Protection");
}

function checkTxLimit(address sender, uint256 amount) internal view {
require(amount <= _maxTxAmount || isTxLimitExempt[sender], "TX Limit Exceeded");
}

function shouldTakeFee(address sender) internal view returns (bool) {
return feeEnabled && !isFeeExempt[sender];
}

function getTotalFee(bool selling) public view returns (uint256) {
if(launchedAt 1 >= block.number){ return feeDenominator.sub(1); }
return selling ? totalFee.add(liquidityFee) : totalFee;
}

function takeFee(address sender, address receiver, uint256 amount) internal returns (uint256) {
uint256 feeAmount = amount.mul(getTotalFee(receiver == pair)).div(feeDenominator);

_balances[address(this)] = _balances[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);

if(receiver == pair && autoLiquifyEnabled){
liquidityFeeAccumulator = liquidityFeeAccumulator.add(feeAmount.mul(liquidityFee).div(totalFee.add(liquidityFee)));
}

return amount.sub(feeAmount);
}

function shouldSwapBack() internal view returns (bool) {
return msg.sender != pair
&& !inSwap
&& swapEnabled
&& _balances[address(this)] >= swapThreshold;
}

function swapBack() internal swapping {
if(liquidityFeeAccumulator >= swapThreshold && autoLiquifyEnabled){
liquidityFeeAccumulator = liquidityFeeAccumulator.sub(swapThreshold);
uint256 amountToLiquify = swapThreshold.div(2);

address[] memory path = new address[](2);
path[0] = address(this);
path[1] = WBNB;

uint256 balanceBefore = address(this).balance;

router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToLiquify,
0,
path,
address(this),
block.timestamp
);

uint256 amountBNB = address(this).balance.sub(balanceBefore);

router.addLiquidityETH{value: amountBNB}(
address(this),
amountToLiquify,
0,
0,
autoLiquidityReceiver,
block.timestamp
);

emit AutoLiquify(amountBNB, amountToLiquify);
}else{
uint256 amountToSwap = swapThreshold;

address[] memory path = new address[](2);
path[0] = address(this);
path[1] = WBNB;

uint256 balanceBefore = address(this).balance;

router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
path,
address(this),
block.timestamp
);

uint256 amountBNB = address(this).balance.sub(balanceBefore);

uint256 amountBNBReflection = amountBNB.mul(reflectionFee).div(totalFee);
uint256 amountBNBMarketing = amountBNB.mul(marketingFee).div(totalFee);
uint256 amountBNBDev = amountBNB.mul(devFee).div(totalFee);

try distributor.deposit{value: amountBNBReflection}() {} catch {}

(bool success, ) = payable(marketingFeeReceiver).call{value: amountBNBMarketing, gas: 30000}("");
if(success){ marketingFees = marketingFees.add(amountBNBMarketing); }

(success, ) = payable(devFeeReceiver).call{value: amountBNBDev, gas: 30000}("");
if(success){ devFees = devFees.add(amountBNBDev); }

emit SwapBack(amountToSwap, amountBNB);
}
}

function shouldAutoBuyback() internal view returns (bool) {
return msg.sender != pair
&& !inSwap
&& autoBuybackEnabled
&& autoBuybackBlockLast autoBuybackBlockPeriod <= block.number
&& address(this).balance >= autoBuybackAmount;
}

function buybackWEI(uint256 amount) external authorized {
_buyback(amount);
}

function buybackBNB(uint256 amount) external authorized {
_buyback(amount * (10 ** 18));
}

function _buyback(uint256 amount) internal {
buyTokens(amount, DEAD);
emit Buyback(amount);
}

function triggerAutoBuyback() internal {
buyTokens(autoBuybackAmount, DEAD);
autoBuybackBlockLast = block.number;
autoBuybackAccumulator = autoBuybackAccumulator.add(autoBuybackAmount);
if(autoBuybackAccumulator > autoBuybackCap){ autoBuybackEnabled = false; }
}

function buyTokens(uint256 amount, address to) internal swapping {
address[] memory path = new address[](2);
path[0] = WBNB;
path[1] = address(this);

router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amount}(
0,
path,
to,
block.timestamp
);
}

function setAutoBuybackSettings(bool _enabled, uint256 _cap, uint256 _amount, uint256 _period) external authorized {
autoBuybackEnabled = _enabled;
autoBuybackCap = _cap;
autoBuybackAccumulator = 0;
autoBuybackAmount = _amount;
autoBuybackBlockPeriod = _period;
autoBuybackBlockLast = block.number;
emit AutoBuybackSettingsUpdated(_enabled, _cap, _amount, _period);
}

function launched() internal view returns (bool) {
return launchedAt != 0;
}

function launch() internal {
launchedAt = block.number;
autoClaimEnabled = true;
emit Launch();
}

function setTxLimit(uint256 amount) external authorized {
require(amount >= _totalSupply / 1000);
_maxTxAmount = amount;
emit TxLimitUpdated(amount);
}

function setIsDividendExempt(address holder, bool exempt) external authorized {
require(holder != address(this) && holder != pair);
isDividendExempt[holder] = exempt;
if(exempt){
distributor.setShare(holder, 0);
}else{
distributor.setShare(holder, _balances[holder]);
}
emit DividendExemptUpdated(holder, exempt);
}

function setIsFeeExempt(address holder, bool exempt) external authorized {
isFeeExempt[holder] = exempt;
emit FeeExemptUpdated(holder, exempt);
}

function setIsTxLimitExempt(address holder, bool exempt) external authorized {
isTxLimitExempt[holder] = exempt;
emit TxLimitExemptUpdated(holder, exempt);
}

function setFees(
bool _enabled,
uint256 _liquidityFee,
uint256 _buybackFee,
uint256 _reflectionFee,
uint256 _marketingFee,
uint256 _devFee,
uint256 _feeDenominator
) external authorized {
feeEnabled = _enabled;

buybackFee = _buybackFee;
reflectionFee = _reflectionFee;
marketingFee = _marketingFee;
devFee = _devFee;

totalFee = buybackFee.add(reflectionFee).add(marketingFee).add(devFee);

liquidityFee = _liquidityFee;

feeDenominator = _feeDenominator;
require(totalFee.add(liquidityFee) < feeDenominator/5);

emit FeesUpdated(_enabled, _liquidityFee, _buybackFee, _reflectionFee, _marketingFee, _devFee, _feeDenominator);
}

function setFeeReceivers(address _autoLiquidityReceiver, address _marketingFeeReceiver, address _devFeeReceiver) external authorized {
autoLiquidityReceiver = _autoLiquidityReceiver;
marketingFeeReceiver = _marketingFeeReceiver;
devFeeReceiver = _devFeeReceiver;
emit FeeReceiversUpdated(_autoLiquidityReceiver, _marketingFeeReceiver, _devFeeReceiver);
}

function setSwapBackSettings(bool _enabled, uint256 _amount) external authorized {
swapEnabled = _enabled;
swapThreshold = _amount;
emit SwapBackSettingsUpdated(_enabled, _amount);
}

function setAutoLiquifyEnabled(bool _enabled) external authorized {
autoLiquifyEnabled = _enabled;
emit AutoLiquifyUpdated(_enabled);
}

function setDistributionCriteria(uint256 _minPeriod, uint256 _minDistribution) external authorized {
distributor.setDistributionCriteria(_minPeriod, _minDistribution);
}

function setDistributorSettings(uint256 gas, bool _autoClaim) external authorized {
require(gas <= 1000000);
distributorGas = gas;
autoClaimEnabled = _autoClaim;
emit DistributorSettingsUpdated(gas, _autoClaim);
}

function getAccumulatedFees() external view returns (uint256, uint256) {
return (marketingFees, devFees);
}

function getAutoBuybackSettings() external view returns (bool,uint256,uint256,uint256,uint256,uint256) {
return (
autoBuybackEnabled,
autoBuybackCap,
autoBuybackAccumulator,
autoBuybackAmount,
autoBuybackBlockPeriod,
autoBuybackBlockLast
);
}

function getAutoLiquifySettings() external view returns (bool,uint256,uint256) {
return (
autoLiquifyEnabled,
liquidityFeeAccumulator,
swapThreshold
);
}

function getSwapBackSettings() external view returns (bool,uint256) {
return (
swapEnabled,
swapThreshold
);
}

function getFees() external view returns (bool,uint256,uint256,uint256,uint256,uint256,uint256) {
return (
feeEnabled,
buybackFee,
reflectionFee,
marketingFee,
devFee,
liquidityFee,
feeDenominator
);
}

event Launch();
event AutoLiquify(uint256 amountBNB, uint256 amountToken);
event SwapBack(uint256 amountToken, uint256 amountBNB);
event Buyback(uint256 amountBNB);
event AutoBuybackSettingsUpdated(bool enabled, uint256 cap, uint256 amount, uint256 period);
event TxLimitUpdated(uint256 amount);
event DividendExemptUpdated(address holder, bool exempt);
event FeeExemptUpdated(address holder, bool exempt);
event TxLimitExemptUpdated(address holder, bool exempt);
event FeesUpdated(bool enabled, uint256 liquidityFee, uint256 buybackFee, uint256 reflectionFee, uint256 marketingFee, uint256 devFee, uint256 feeDenominator);
event FeeReceiversUpdated(address autoLiquidityReceiver, address marketingFeeReceiver, address devFeeReceiver);
event SwapBackSettingsUpdated(bool enabled, uint256 amount);
event AutoLiquifyUpdated(bool enabled);
event DistributorSettingsUpdated(uint256 gas, bool autoClaim);
}