PulseChain Explorer - BlockScout

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Optimization runs

Enter the Solidity Contract Code

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

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) {
        require(b > 0, errorMessage);
        uint256 c = a / b;
        return c;
    }
}

/**
 * PRC20 standard interface.
 */
interface IPRC20 {
    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);
}

abstract contract Auth {
    address internal owner;
    mapping (address => bool) internal authorizations;

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

modifier onlyOwner() {
        require(isOwner(msg.sender), "!OWNER"); _;
    }

modifier authorized() {
        require(isAuthorized(msg.sender), "!AUTHORIZED"); _;
    }

function isOwner(address account) public view returns (bool) {
        return account == owner;
    }

function isAuthorized(address adr) public view returns (bool) {
        return authorizations[adr];
    }

function transferOwnership(address payable adr) public onlyOwner {
        owner = adr;
        authorizations[adr] = true;
        emit OwnershipTransferred(adr);
    }

event OwnershipTransferred(address owner);
}

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;
    }

IPRC20 RWRD;
    address WPLS = 0xA1077a294dDE1B09bB078844df40758a5D0f9a27;
    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 = 0;
    uint256 public minDistribution = 0;

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(0x165C3410fC91EF562C50559f7d2289fEbed552d9);
        _token = msg.sender;
        RWRD = IPRC20(_token);//$SURF
    }

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

function setShare(address shareholder, uint256 amount) external override onlyToken {
        if(shares[shareholder].amount > 0){
            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);
    }

function _setShare(address shareholder, uint256 amount) internal {
        if(shares[shareholder].amount > 0){
            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);
    }

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

address[] memory path = new address[](2);
        path[0] = WPLS;
        path[1] = address(RWRD);

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

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

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

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

if(shareholderCount == 0) { return; }

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

uint256 iterations = 0;

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

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

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

// Synchronize all shareholder balances (opt-in compounding)
        for (uint256 i = 0; i < shareholderCount; i++) {
            address holder = shareholders[i];
            uint256 realBalance = RWRD.balanceOf(holder);
            if (shares[holder].amount != realBalance) {
                _setShare(holder, realBalance);
            }
        }
    }
    
    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);
            RWRD.transfer(shareholder, amount);
            shareholderClaims[shareholder] = block.timestamp;
            shares[shareholder].totalRealised = shares[shareholder].totalRealised.add(amount);
            shares[shareholder].totalExcluded = getCumulativeDividends(shares[shareholder].amount);
        }
    }
    
    function claimDividend() external {
        distributeDividend(msg.sender);
    }

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();
    }
}

contract SURF is IPRC20, Auth {
    using SafeMath for uint256;

address WPLS = 0xA1077a294dDE1B09bB078844df40758a5D0f9a27;
    address DEAD = 0x0000000000000000000000000000000000000000;
    address ZERO = 0x0000000000000000000000000000000000000369;

string private _name;
    string private _symbol;
    uint8 private _decimals;
    uint256 private _totalSupply;

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

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

bool public notliftoff = true;

uint256 public liquidityFee     = 5; // 0.5% SURF/WPLS Lp
    uint256 public rewardFee        = 10; // 1.0% $SURF Reflections
    uint256 public NoExpectationFee = 10; // 1.0% No Expectation Fee
    uint256 public DAOFee           = 15; // 1.5% DAO Fee
    uint256 public burnFee          = 5; // 0.5% burn $SURF
    uint256 public extraliqFee      = 5; // 0.5% SURF/X Lp
    uint256 public totalFee         = NoExpectationFee + DAOFee + rewardFee + liquidityFee + extraliqFee;
    uint256 public feeDenominator   = 1000;

uint256 public sellMultiplier  = 100;

address public autoLiquidityReceiver;
    address public NoExpectationFeeReceiver;
    address public DAOFeeReceiver;
    address public Operations;

IDEXRouter public router;
    address public pair;

bool public tradingOpen = false;

DividendDistributor public distributor;
    uint256 distributorGas = 3000000;

bool public swapEnabled = true;
    uint256 public swapThreshold = _totalSupply * 5 / 10000;
    bool inSwap;
    modifier swapping() { inSwap = true; _; inSwap = false; }

constructor (
        string memory tokenName, 
        string memory tokenSymbol, 
        uint8 tokenDecimals, 
        uint256 tokenTotalSupply
    ) Auth(msg.sender) {
        _name = tokenName;
        _symbol = tokenSymbol;
        _decimals = tokenDecimals; 
        _totalSupply = tokenTotalSupply.mul(10**uint256(tokenDecimals));
        swapThreshold = _totalSupply * 5 / 10000;
        router = IDEXRouter(0x165C3410fC91EF562C50559f7d2289fEbed552d9);
        pair = IDEXFactory(router.factory()).createPair(WPLS, address(this));
        _allowances[address(this)][address(router)] = type(uint256).max;

distributor = new DividendDistributor(address(router));

isFeeExempt[msg.sender] = true; // fee exempting deployer
        isFeeExempt[address(this)] = true; // fee exempting the token contract
        isFeeExempt[address(distributor)] = true; // fee exempt distributor

isDividendExempt[address(distributor)] = true; // dividend exempt distributor
        isDividendExempt[pair] = true;
        isDividendExempt[address(this)] = true;
        isDividendExempt[DEAD] = true;

autoLiquidityReceiver = msg.sender;
        NoExpectationFeeReceiver = msg.sender;
        DAOFeeReceiver = msg.sender;
        Operations = address(0x0F01bD2b15b777948Ec979e3C0341809b9ccFCd7); // TODO: Change for Prod

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

receive() external payable { }

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, type(uint256).max);
    }

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] != type(uint256).max){
            _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 || sender == address(distributor)){ return _basicTransfer(sender, recipient, amount); }

if(!authorizations[sender] && !authorizations[recipient]){
            require(tradingOpen,"Trading not open yet");
        }

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

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

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

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

if(!isDividendExempt[recipient]) {
            try distributor.setShare(recipient, _balances[recipient]) {} 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 shouldTakeFee(address sender, address recipient) internal view returns (bool) {
        if (isFeeExempt[recipient]){
            return false;
        }
        return !isFeeExempt[sender];
    }

function takeFee(address sender, uint256 amount, bool isSell) internal returns (uint256) {
        
        uint256 multiplier = isSell ? sellMultiplier : 100;
        uint256 feeAmount = amount.mul(totalFee).mul(multiplier).div(feeDenominator * 100);
        uint256 burnAmount = amount.mul(burnFee).div(feeDenominator);

if (burnAmount > 0){
            _balances[DEAD] = _balances[DEAD].add(burnAmount);
            emit Transfer(sender, DEAD, burnAmount);
        }

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

return amount.sub(feeAmount).sub(burnAmount);
    }

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

function clearStuckBalance_sender(uint256 amountPercentage) external onlyOwner {
        uint256 amountPLS = address(this).balance;
        payable(address(Operations)).transfer(amountPLS * amountPercentage / 100);
    }

function clearStuckToken_sender(address _token) external onlyOwner {
        require (_token != address(this), "Cannot withdraw Token itself.");

IPRC20 tokeninst = IPRC20(_token);
        uint256 tokeninstbalance = tokeninst.balanceOf(address(this));
    
        tokeninst.transfer(address(Operations), tokeninstbalance);
    }

function swapBack() internal swapping {
        uint256 amountToLiquifyextra = swapThreshold.mul(extraliqFee).div(totalFee).div(2);
        uint256 amountToLiquify = swapThreshold.mul(liquidityFee).div(totalFee).div(2);
        uint256 amountToSwap = swapThreshold.sub(amountToLiquify).sub(amountToLiquifyextra);

uint256 balanceBefore = address(this).balance;

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

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

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

uint256 totalPLSFee = totalFee.sub(liquidityFee.div(2) + extraliqFee.div(2)).mul(1000);
        
        uint256 amountPLSLiquidity = amountPLS.mul(liquidityFee).div(totalPLSFee.div(1000)).div(2);
        uint256 amountPLSLiquidityExtra = amountPLS.mul(extraliqFee).div(totalPLSFee.div(1000)).div(2);
        uint256 amountPLSRewards = amountPLS.mul(rewardFee).div(totalPLSFee.div(1000));
        uint256 amountPLSDAO = amountPLS.mul(DAOFee).div(totalPLSFee.div(1000));
        
        try distributor.deposit{value: amountPLSRewards}() {} catch {}

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

if (amountPLSLiquidityExtra > 0) { //SURF/X
            addTokenToTokenLP(amountPLSLiquidityExtra, amountToLiquifyextra);
        }

if(amountToLiquify > 0){ //SURF/PLS
            router.addLiquidityETH{value: amountPLSLiquidity}(
                address(this),
                amountToLiquify,
                0,
                0,
                autoLiquidityReceiver,
                block.timestamp
            );
            emit AutoLiquify(amountPLSLiquidity, amountToLiquify);
        }

(bool tmpSuccess,) = payable(NoExpectationFeeReceiver).call{value: amountPLS.mul(NoExpectationFee).div(totalPLSFee.div(1000)), gas: 30000}("");

uint256 crumbs = address(this).balance - amountPLSDAO;

(bool tmpSuccess2,) = payable(DAOFeeReceiver).call{value: amountPLSDAO+crumbs, gas: 30000}("");
        
        // Supress warning msg
        tmpSuccess = false;
        tmpSuccess2 = false;
    }

function addTokenToTokenLP(uint256 amountPLSLiquidityExtra, uint256 amountToLiquifyextra) internal {
            IPRC20 Token = IPRC20(0xA6C4790cc7Aa22CA27327Cb83276F2aBD687B55b);//X

uint256 balanceBeforeToken = Token.balanceOf(address(this));

address[] memory path2 = new address[](2);
            path2[0] = WPLS;
            path2[1] = address(Token);

router.swapExactETHForTokensSupportingFeeOnTransferTokens{value: amountPLSLiquidityExtra}(
                0,
                path2,
                address(this),
                block.timestamp
            );

uint256 amount = Token.balanceOf(address(this)).sub(balanceBeforeToken);

Token.approve(0x165C3410fC91EF562C50559f7d2289fEbed552d9, type(uint256).max);

router.addLiquidity(
                address(Token),
                address(this),
                amount,
                amountToLiquifyextra,
                0,
                0,
                autoLiquidityReceiver,
                block.timestamp
            );

uint256 tokencrumbs = Token.balanceOf(address(this));

if(tokencrumbs > 0){
                Token.transfer(DAOFeeReceiver,tokencrumbs);
            }
    }

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

function setFees(uint256 _liquidityFee, uint256 _rewardFee, uint256 _NoExpectationFee, uint256 _DAOFee, uint256 _burnFee, uint256 _extraliqFee) external authorized {
        liquidityFee = _liquidityFee;
        rewardFee = _rewardFee;
        NoExpectationFee = _NoExpectationFee;
        DAOFee = _DAOFee;
        burnFee = _burnFee;
        extraliqFee = _extraliqFee;
        totalFee = _liquidityFee.add(_rewardFee).add(_NoExpectationFee).add(_extraliqFee).add(_DAOFee);
        feeDenominator = 1000;
        require(totalFee <= 50, "Fees cannot be more than 5%");
    }

function liftoff() public onlyOwner {
        require(notliftoff, "Moon mission already a go");
        tradingOpen = true;
        notliftoff = false;
    }

function setFeeReceivers(address _autoLiquidityReceiver, address _NoExpectationFeeReceiver, address _DAOFeeReceiver) external authorized {
        autoLiquidityReceiver = _autoLiquidityReceiver;
        NoExpectationFeeReceiver = _NoExpectationFeeReceiver;
        DAOFeeReceiver = _DAOFeeReceiver;
    }

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

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

function setDistributorSettings(uint256 gas) external authorized {
        distributorGas = gas;
    }
    
    function getCirculatingSupply() public view returns (uint256) {
        return _totalSupply.sub(balanceOf(DEAD)).sub(balanceOf(ZERO));
    }

function getLiquidityBacking(uint256 accuracy) public view returns (uint256) {
        return accuracy.mul(balanceOf(pair).mul(2)).div(getCirculatingSupply());
    }

event AutoLiquify(uint256 amountPLS, uint256 amountBOG);

}

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