owner

spender

value

Approval

account

isExcluded

ExcludeFromFees

accounts

ExcludeMultipleAccountsFromFees

newValue

oldValue

GasForProcessingUpdated

previousOwner

newOwner

OwnershipTransferred

iterations

claims

lastProcessedIndex

automatic

processor

ProcessedDividendTracker

tokensSwapped

amount

SendDividends

pair

SetAutomatedMarketMakerPair

from

Transfer

_isBot

activateTrading

amounts

airdropTokens

allowance

approve

automatedMarketMakerPairs

balanceOf

buyTaxes

rewards

treasury

liquidity

claim

claimEnabled

decimals

subtractedValue

decreaseAllowance

devWallet

dividendTokenBalanceOf

dividendTracker

excludeFromDividends

excluded

excludeFromFees

excludeMultipleAccountsFromFees

forceSend

getAccountInfo

getTotalDividendsDistributed

addedValue

increaseAllowance

isExcludedFromFees

maxBuyAmount

maxSellAmount

name

renounceOwnership

tokenAddress

rescueETH20Tokens

router

sellTaxes

newPair

setAutomatedMarketMakerPair

setBot

bots

setBulkBot

_rewards

_treasury

_liquidity

_dev

setBuyTaxes

state

setClaimEnabled

newWallet

setDevWallet

_lpToken

setLP_Token

maxBuy

maxSell

setMaxBuyAndSell

setSellTaxes

_enabled

setSwapEnabled

setSwapTokensAtAmount

setTreasuryWallet

swapEnabled

swapTokensAtAmount

symbol

totalBuyTax

totalSellTax

totalSupply

trackerForceSend

trackerRescueETH20Tokens

tradingEnabled

recipient

transfer

sender

transferFrom

transferOwnership

treasuryWallet

newAddress

updateDividendTracker

newRouter

updateRouter

withdrawableDividendOf

// SPDX-License-Identifier: MIT

/**

 TheViralCrypto presents: #VIRAL
   
 by @SatoshiViral

 Community: @TheViralCrypto
 Website: https://theviralcrypto.co/

 */

pragma solidity ^0.8.10;

import "./interfaces/DividendPayingToken.sol";
import "./interfaces/Ownable.sol";
import "./interfaces/IDex.sol";
import "./interfaces/IERC20.sol";


library Address{
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }
}


contract VIRAL is ERC20, Ownable {
    using Address for address payable;

    IRouter public router;
    address public  pair;

    bool private swapping;
    bool public swapEnabled = true;
    bool public claimEnabled;
    bool public tradingEnabled;
    
    VIRALDividendTracker public dividendTracker;

    address public treasuryWallet = 0x73fA5dDF2aB78D92bB723D92Ab98aF7A0A4Fde8F;
    address public devWallet = 0x16023072c6a88555736B654629fC807d623617A5;

    uint256 public swapTokensAtAmount = 500_000 * 10**18;
    uint256 public maxBuyAmount = 1_000_000 * 10**18;
    uint256 public maxSellAmount = 1_000_000 * 10**18;

            ///////////////
           //   Fees    //
          ///////////////
    
    struct Taxes {
        uint256 rewards;
        uint256 treasury;
        uint256 liquidity;
        uint256 dev;
    }

    Taxes public buyTaxes = Taxes(0,0,0,2);
    Taxes public sellTaxes = Taxes(5,10,3,2);

    uint256 public totalBuyTax = 2;
    uint256 public totalSellTax = 20;

    mapping (address => bool) public _isBot;
      
    mapping (address => bool) private _isExcludedFromFees;
    mapping (address => bool) public automatedMarketMakerPairs;

        ///////////////
       //   Events  //
      ///////////////
      
    event ExcludeFromFees(address indexed account, bool isExcluded);
    event ExcludeMultipleAccountsFromFees(address[] accounts, bool isExcluded);
    event SetAutomatedMarketMakerPair(address indexed pair, bool indexed value);
    event GasForProcessingUpdated(uint256 indexed newValue, uint256 indexed oldValue);
    event SendDividends(uint256 tokensSwapped,uint256 amount);
    event ProcessedDividendTracker(uint256 iterations,uint256 claims,uint256 lastProcessedIndex,bool indexed automatic,uint256 gas,address indexed processor);


    constructor() ERC20("VIRAL", "VIRAL") {

        dividendTracker = new VIRALDividendTracker();

        IRouter _router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        address _pair = IFactory(_router.factory()).createPair(address(this), _router.WETH());

        router = _router;
        pair = _pair;

        _setAutomatedMarketMakerPair(_pair, true);

        dividendTracker.updateLP_Token(pair);

        // exclude from receiving dividends
        dividendTracker.excludeFromDividends(address(dividendTracker), true);
        dividendTracker.excludeFromDividends(address(this), true);
        dividendTracker.excludeFromDividends(owner(), true);
        dividendTracker.excludeFromDividends(address(0xdead), true);
        dividendTracker.excludeFromDividends(address(_router), true);

        // exclude from paying fees or having max transaction amount
        excludeFromFees(owner(), true);
        excludeFromFees(address(this), true);
        excludeFromFees(treasuryWallet, true);
        excludeFromFees(devWallet, true);

        /*
            _mint is an internal function in ERC20.sol that is only called here,
            and CANNOT be called ever again
        */
        _mint(owner(), 10e9* (10**18));
    }

    receive() external payable {}
    function updateDividendTracker(address newAddress) public onlyOwner {
        VIRALDividendTracker newDividendTracker = VIRALDividendTracker(payable(newAddress));

        newDividendTracker.excludeFromDividends(address(newDividendTracker), true);
        newDividendTracker.excludeFromDividends(address(this), true);
        newDividendTracker.excludeFromDividends(owner(), true);
        newDividendTracker.excludeFromDividends(address(router), true);
        dividendTracker = newDividendTracker;
    }

    
    /// @notice Manual claim the dividends
    function claim() external {
        require(claimEnabled, "Claim not enabled");
        dividendTracker.processAccount(payable(msg.sender));
    }
    
    /// @notice Withdraw tokens sent by mistake.
    /// @param tokenAddress The address of the token to withdraw
    function rescueETH20Tokens(address tokenAddress) external onlyOwner{
        IERC20(tokenAddress).transfer(owner(), IERC20(tokenAddress).balanceOf(address(this)));
    }
    
    /// @notice Send remaining ETH to treasuryWallet
    /// @dev It will send all ETH to treasuryWallet
    function forceSend() external {
        uint256 ETHbalance = address(this).balance;
        payable(treasuryWallet).sendValue(ETHbalance);
    }

    function trackerRescueETH20Tokens(address tokenAddress) external onlyOwner{
        dividendTracker.trackerRescueETH20Tokens(owner(), tokenAddress);
    }

    function trackerForceSend() external onlyOwner{
        dividendTracker.trackerForceSend(owner());
    }
    
    function updateRouter(address newRouter) external onlyOwner{
        router = IRouter(newRouter);
    }
    
     /////////////////////////////////
    // Exclude / Include functions //
   /////////////////////////////////

    function excludeFromFees(address account, bool excluded) public onlyOwner {
        require(_isExcludedFromFees[account] != excluded, "VIRAL: Account is already the value of 'excluded'");
        _isExcludedFromFees[account] = excluded;

        emit ExcludeFromFees(account, excluded);
    }

    function excludeMultipleAccountsFromFees(address[] calldata accounts, bool excluded) public onlyOwner {
        for(uint256 i = 0; i < accounts.length; i++) {
            _isExcludedFromFees[accounts[i]] = excluded;
        }
        emit ExcludeMultipleAccountsFromFees(accounts, excluded);
    }

    /// @dev "true" to exlcude, "false" to include
    function excludeFromDividends(address account, bool value) external onlyOwner{
        dividendTracker.excludeFromDividends(account, value);
    }

     ///////////////////////
    //  Setter Functions //
   ///////////////////////

    function setTreasuryWallet(address newWallet) external onlyOwner{
        treasuryWallet = newWallet;
    }

    function setDevWallet(address newWallet) external onlyOwner{
        devWallet = newWallet;
    }

    /// @notice Update the threshold to swap tokens for liquidity,
    ///   treasury and dividends.
    function setSwapTokensAtAmount(uint256 amount) external onlyOwner{
        swapTokensAtAmount = amount * 10**18;
    }

    function setBuyTaxes(uint256 _rewards, uint256 _treasury, uint256 _liquidity, uint256 _dev) external onlyOwner{
        require(_rewards + _treasury + _liquidity + _dev <= 20, "Fee must be <= 20%");
        buyTaxes = Taxes(_rewards, _treasury, _liquidity, _dev);
        totalBuyTax = _rewards + _treasury + _liquidity + _dev;
    }

    function setSellTaxes(uint256 _rewards, uint256 _treasury, uint256 _liquidity,uint256 _dev) external onlyOwner{
        require(_rewards + _treasury + _liquidity + _dev <= 20, "Fee must be <= 20%");
        sellTaxes = Taxes(_rewards, _treasury, _liquidity, _dev);
        totalSellTax = _rewards + _treasury + _liquidity + _dev;
    }

    function setMaxBuyAndSell(uint256 maxBuy, uint256 maxSell) external onlyOwner{
        maxBuyAmount = maxBuy * 10**18;
        maxSellAmount = maxSell * 10**18;
    }

    /// @notice Enable or disable internal swaps
    /// @dev Set "true" to enable internal swaps for liquidity, treasury and dividends
    function setSwapEnabled(bool _enabled) external onlyOwner{
        swapEnabled = _enabled;
    }
    
    
    function activateTrading() external onlyOwner{
        require(!tradingEnabled, "Trading already enabled");
        tradingEnabled = true;
    }

    function setClaimEnabled(bool state) external onlyOwner{
        claimEnabled = state;
    }

    /// @param bot The bot address
    /// @param value "true" to blacklist, "false" to unblacklist
    function setBot(address bot, bool value) external onlyOwner{
        require(_isBot[bot] != value);
        _isBot[bot] = value;
    }
    
    function setBulkBot(address[] memory bots, bool value) external onlyOwner{
        for(uint256 i; i<bots.length; i++){
            _isBot[bots[i]] = value;
        }
    }

    function setLP_Token(address _lpToken) external onlyOwner{
        dividendTracker.updateLP_Token(_lpToken);
    }


    /// @dev Set new pairs created due to listing in new DEX
    function setAutomatedMarketMakerPair(address newPair, bool value) external onlyOwner {
        _setAutomatedMarketMakerPair(newPair, value);
    }
    
    
    function _setAutomatedMarketMakerPair(address newPair, bool value) private {
        require(automatedMarketMakerPairs[newPair] != value, "VIRAL: Automated market maker pair is already set to that value");
        automatedMarketMakerPairs[newPair] = value;

        if(value) {
            dividendTracker.excludeFromDividends(newPair, true);
        }

        emit SetAutomatedMarketMakerPair(newPair, value);
    }

     //////////////////////
    // Getter Functions //
   //////////////////////

    function getTotalDividendsDistributed() external view returns (uint256) {
        return dividendTracker.totalDividendsDistributed();
    }

    function isExcludedFromFees(address account) public view returns(bool) {
        return _isExcludedFromFees[account];
    }

    function withdrawableDividendOf(address account) public view returns(uint256) {
        return dividendTracker.withdrawableDividendOf(account);
    }

    function dividendTokenBalanceOf(address account) public view returns (uint256) {
        return dividendTracker.balanceOf(account);
    }

    function getAccountInfo(address account)
        external view returns (
             address,
            uint256,
            uint256,
            uint256,
            uint256){
        return dividendTracker.getAccount(account);
    }

     ////////////////////////
    // Transfer Functions //
   ////////////////////////
   
    // Airdrop tokens to users. This won't update the dividend balance in order to avoid a gas issue.
    // Users will get dividend balance updated as soon as their balance change.
    function airdropTokens(address[] memory accounts, uint256[] memory amounts) external onlyOwner{
        require(accounts.length == amounts.length, "Arrays must have same size");
        for(uint256 i; i< accounts.length; i++){
            super._transfer(msg.sender, accounts[i], amounts[i]);
        }
    }

    function _transfer(address from, address to, uint256 amount) internal override {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        

        if(!_isExcludedFromFees[from] && !_isExcludedFromFees[to] && !swapping){
            require(tradingEnabled, "Trading not active");
            require(!_isBot[from] && !_isBot[to], "Bye Bye Bot");
            if(automatedMarketMakerPairs[to]) require(amount <= maxSellAmount, "You are exceeding maxSellAmount");
            else if(automatedMarketMakerPairs[from]) require(amount <= maxBuyAmount, "You are exceeding maxBuyAmount");
        }

        if(amount == 0) {
            super._transfer(from, to, 0);
            return;
        }
        
        uint256 contractTokenBalance = balanceOf(address(this));
        bool canSwap = contractTokenBalance >= swapTokensAtAmount;

        if( canSwap && !swapping && swapEnabled && automatedMarketMakerPairs[to] && !_isExcludedFromFees[from] && !_isExcludedFromFees[to]) {
            swapping = true;

            if(totalSellTax> 0){
                swapAndLiquify(swapTokensAtAmount);
            }

            swapping = false;
        }

        bool takeFee = !swapping;

        // if any account belongs to _isExcludedFromFee account then remove the fee
        if(_isExcludedFromFees[from] || _isExcludedFromFees[to]) {
            takeFee = false;
        }

        if(!automatedMarketMakerPairs[to] && !automatedMarketMakerPairs[from]) takeFee = false;

        if(takeFee) {
            uint256 feeAmt;
            if(automatedMarketMakerPairs[to]) feeAmt = amount * totalSellTax / 100;
            else if(automatedMarketMakerPairs[from]) feeAmt = amount * totalBuyTax / 100;

            amount = amount - feeAmt;
            super._transfer(from, address(this), feeAmt);
        }
        super._transfer(from, to, amount);

        try dividendTracker.setBalance(from, balanceOf(from)) {} catch {}
        try dividendTracker.setBalance(to, balanceOf(to)) {} catch {}

    }

    function swapAndLiquify(uint256 tokens) private {
        // Split the contract balance into halves
        uint256 tokensToAddLiquidityWith = tokens / 2;
        uint256 toSwap = tokens - tokensToAddLiquidityWith;

        uint256 initialBalance = address(this).balance;

        swapTokensForETH(toSwap);

        uint256 ETHToAddLiquidityWith = address(this).balance - initialBalance;

        if(ETHToAddLiquidityWith > 0){
            // Add liquidity to pancake
            addLiquidity(tokensToAddLiquidityWith, ETHToAddLiquidityWith);
        }

        uint256 lpBalance = IERC20(pair).balanceOf(address(this));
        uint256 totalTax = (totalSellTax - sellTaxes.liquidity);

        // Send LP to treasuryWallet
        uint256 treasuryAmt = lpBalance * sellTaxes.treasury / totalTax;
        if(treasuryAmt > 0){
            IERC20(pair).transfer(treasuryWallet, treasuryAmt);
        }

        // Send LP to dev
        uint256 devAmt = lpBalance * sellTaxes.dev / totalTax;
        if(devAmt > 0){
            IERC20(pair).transfer(devWallet, devAmt);
        }

        //Send LP to dividends
        uint256 dividends = lpBalance * sellTaxes.rewards / totalTax;
        if(dividends > 0){
            bool success = IERC20(pair).transfer(address(dividendTracker), dividends);
            if (success) {
                dividendTracker.distributeLPDividends(dividends);
                emit SendDividends(tokens, dividends);
            }
        }
    }

    function swapTokensForETH(uint256 tokenAmount) private {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = router.WETH();

        _approve(address(this), address(router), tokenAmount);

        // make the swap
        router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );

    }

    function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {

        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(router), tokenAmount);

        // add the liquidity
        router.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            address(this),
            block.timestamp
        );

    }

}

contract VIRALDividendTracker is Ownable, DividendPayingToken {
    using Address for address payable;

    struct AccountInfo {
        address account;
        uint256 withdrawableDividends;
        uint256 totalDividends;
        uint256 lastClaimTime;
    }

    mapping (address => bool) public excludedFromDividends;

    mapping (address => uint256) public lastClaimTimes;

    event ExcludeFromDividends(address indexed account, bool value);
    event Claim(address indexed account, uint256 amount);

    constructor()  DividendPayingToken("VIRAL_Dividen_Tracker", "VIRAL_Dividend_Tracker") {}

    function trackerRescueETH20Tokens(address recipient, address tokenAddress) external onlyOwner{
        IERC20(tokenAddress).transfer(recipient, IERC20(tokenAddress).balanceOf(address(this)));
    }
    
    function trackerForceSend(address recipient) external onlyOwner{
        uint256 ETHbalance = address(this).balance;
        payable(recipient).sendValue(ETHbalance);
    }

    function updateLP_Token(address _lpToken) external onlyOwner{
        LP_Token = _lpToken;
    }

    function _transfer(address, address, uint256) internal pure override {
        require(false, "VIRAL_Dividend_Tracker: No transfers allowed");
    }
    

    function excludeFromDividends(address account, bool value) external onlyOwner {
        require(excludedFromDividends[account] != value);
        excludedFromDividends[account] = value;
      if(value == true){
        _setBalance(account, 0);
      }
      else{
        _setBalance(account, balanceOf(account));
      }
      emit ExcludeFromDividends(account, value);

    }

    function getAccount(address account) public view returns (address, uint256, uint256, uint256, uint256 ) {
        AccountInfo memory info;
        info.account = account;
        info.withdrawableDividends = withdrawableDividendOf(account);
        info.totalDividends = accumulativeDividendOf(account);
        info.lastClaimTime = lastClaimTimes[account];
        return (
            info.account,
            info.withdrawableDividends,
            info.totalDividends,
            info.lastClaimTime,
            totalDividendsWithdrawn
        );
        
    }

    function setBalance(address account, uint256 newBalance) external onlyOwner {
        if(excludedFromDividends[account]) {
            return;
        }
        _setBalance(account, newBalance);
    }

    function processAccount(address payable account) external onlyOwner returns (bool) {
        uint256 amount = _withdrawDividendOfUser(account);

        if(amount > 0) {
            lastClaimTimes[account] = block.timestamp;
            emit Claim(account, amount);
            return true;
        }
        return false;
    }
}


_name

_symbol

weiAmount

DividendWithdrawn

DividendsDistributed

LP_Token

_owner

accumulativeDividendOf

distributeLPDividends

dividendOf

totalDividendsDistributed

totalDividendsWithdrawn

withdrawDividend

withdrawnDividendOf

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.10;

import "./ERC20.sol";
import "./IERC20.sol";
import "./SafeMath.sol";
import "./DividendPayingTokenInterface.sol";
import "./Ownable.sol";
import "./IDex.sol";

/*
        Credits to: Roger Wu (https://github.com/roger-wu)
        Reference: the source code of PoWH3D: https://etherscan.io/address/0xB3775fB83F7D12A36E0475aBdD1FCA35c091efBe#code
*/

contract DividendPayingToken is ERC20, DividendPayingTokenInterface, Ownable {
  using SafeMath for uint256;
  using SafeMathUint for uint256;
  using SafeMathInt for int256;

  address public LP_Token;


  // With `magnitude`, we can properly distribute dividends even if the amount of received ether is small.
  // For more discussion about choosing the value of `magnitude`,
  //  see https://github.com/ethereum/EIPs/issues/1726#issuecomment-472352728
  uint256 constant internal magnitude = 2**128;

  uint256 internal magnifiedDividendPerShare;

  // About dividendCorrection:
  // If the token balance of a `_user` is never changed, the dividend of `_user` can be computed with:
  //   `dividendOf(_user) = dividendPerShare * balanceOf(_user)`.
  // When `balanceOf(_user)` is changed (via minting/burning/transferring tokens),
  //   `dividendOf(_user)` should not be changed,
  //   but the computed value of `dividendPerShare * balanceOf(_user)` is changed.
  // To keep the `dividendOf(_user)` unchanged, we add a correction term:
  //   `dividendOf(_user) = dividendPerShare * balanceOf(_user) + dividendCorrectionOf(_user)`,
  //   where `dividendCorrectionOf(_user)` is updated whenever `balanceOf(_user)` is changed:
  //   `dividendCorrectionOf(_user) = dividendPerShare * (old balanceOf(_user)) - (new balanceOf(_user))`.
  // So now `dividendOf(_user)` returns the same value before and after `balanceOf(_user)` is changed.
  mapping(address => int256) internal magnifiedDividendCorrections;
  mapping(address => uint256) internal withdrawnDividends;

  uint256 public totalDividendsDistributed;
  uint256 public totalDividendsWithdrawn;

  constructor(string memory _name, string memory _symbol) ERC20(_name, _symbol) {}

  function distributeLPDividends(uint256 amount) public onlyOwner{
    require(totalSupply() > 0);

    if (amount > 0) {
      magnifiedDividendPerShare = magnifiedDividendPerShare.add(
        (amount).mul(magnitude) / totalSupply()
      );
      emit DividendsDistributed(msg.sender, amount);

      totalDividendsDistributed = totalDividendsDistributed.add(amount);
    }
  }

  /// @notice Withdraws the ether distributed to the sender.
  /// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.
  function withdrawDividend() public virtual override {
    _withdrawDividendOfUser(payable(msg.sender));
  }

  /// @notice Withdraws the ether distributed to the sender.
  /// @dev It emits a `DividendWithdrawn` event if the amount of withdrawn ether is greater than 0.
 function _withdrawDividendOfUser(address payable user) internal returns (uint256) {
    uint256 _withdrawableDividend = withdrawableDividendOf(user);
    if (_withdrawableDividend > 0) {
      withdrawnDividends[user] = withdrawnDividends[user].add(_withdrawableDividend);
      totalDividendsWithdrawn += _withdrawableDividend;
      emit DividendWithdrawn(user, _withdrawableDividend);
      bool success = IERC20(LP_Token).transfer(user, _withdrawableDividend);

      if(!success) {
        withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend);
        totalDividendsWithdrawn -= _withdrawableDividend;
        return 0;
      }

      return _withdrawableDividend;
    }

    return 0;
  }


  /// @notice View the amount of dividend in wei that an address can withdraw.
  /// @param _owner The address of a token holder.
  /// @return The amount of dividend in wei that `_owner` can withdraw.
  function dividendOf(address _owner) public view override returns(uint256) {
    return withdrawableDividendOf(_owner);
  }

  /// @notice View the amount of dividend in wei that an address can withdraw.
  /// @param _owner The address of a token holder.
  /// @return The amount of dividend in wei that `_owner` can withdraw.
  function withdrawableDividendOf(address _owner) public view override returns(uint256) {
    return accumulativeDividendOf(_owner).sub(withdrawnDividends[_owner]);
  }

  /// @notice View the amount of dividend in wei that an address has withdrawn.
  /// @param _owner The address of a token holder.
  /// @return The amount of dividend in wei that `_owner` has withdrawn.
  function withdrawnDividendOf(address _owner) public view override returns(uint256) {
    return withdrawnDividends[_owner];
  }


  /// @notice View the amount of dividend in wei that an address has earned in total.
  /// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)
  /// = (magnifiedDividendPerShare * balanceOf(_owner) + magnifiedDividendCorrections[_owner]) / magnitude
  /// @param _owner The address of a token holder.
  /// @return The amount of dividend in wei that `_owner` has earned in total.
  function accumulativeDividendOf(address _owner) public view override returns(uint256) {
    return magnifiedDividendPerShare.mul(balanceOf(_owner)).toInt256Safe()
      .add(magnifiedDividendCorrections[_owner]).toUint256Safe() / magnitude;
  }

  /// @dev Internal function that transfer tokens from one address to another.
  /// Update magnifiedDividendCorrections to keep dividends unchanged.
  /// @param from The address to transfer from.
  /// @param to The address to transfer to.
  /// @param value The amount to be transferred.
  function _transfer(address from, address to, uint256 value) internal virtual override {
    require(false);

    int256 _magCorrection = magnifiedDividendPerShare.mul(value).toInt256Safe();
    magnifiedDividendCorrections[from] = magnifiedDividendCorrections[from].add(_magCorrection);
    magnifiedDividendCorrections[to] = magnifiedDividendCorrections[to].sub(_magCorrection);
  }

  /// @dev Internal function that mints tokens to an account.
  /// Update magnifiedDividendCorrections to keep dividends unchanged.
  /// @param account The account that will receive the created tokens.
  /// @param value The amount that will be created.
  function _mint(address account, uint256 value) internal override {
    super._mint(account, value);

    magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
      .sub( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
  }

  /// @dev Internal function that burns an amount of the token of a given account.
  /// Update magnifiedDividendCorrections to keep dividends unchanged.
  /// @param account The account whose tokens will be burnt.
  /// @param value The amount that will be burnt.
  function _burn(address account, uint256 value) internal override {
    super._burn(account, value);

    magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
      .add( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
  }

  function _setBalance(address account, uint256 newBalance) internal {
    uint256 currentBalance = balanceOf(account);

    if(newBalance > currentBalance) {
      uint256 mintAmount = newBalance.sub(currentBalance);
      _mint(account, mintAmount);
    } else if(newBalance < currentBalance) {
      uint256 burnAmount = currentBalance.sub(newBalance);
      _burn(account, burnAmount);
    }
  }
}


pragma solidity ^0.8.10;

// SPDX-License-Identifier: MIT License

import "./Context.sol";

contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor () {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

WETH

token

amountTokenDesired

amountTokenMin

amountETHMin

deadline

addLiquidityETH

amountToken

amountETH

factory

amountOutMin

path

swapExactETHForTokens

amountIn

swapExactTokensForETHSupportingFeeOnTransferTokens

swapExactTokensForTokensSupportingFeeOnTransferTokens

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.10;

interface IPair {
    function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
    function token0() external view returns (address);

}

interface IFactory{
        function createPair(address tokenA, address tokenB) external returns (address pair);
        function getPair(address tokenA, address tokenB) external view returns (address pair);
}

interface IRouter {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    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 swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
        external
        payable
        returns (uint[] memory amounts);
    
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline) external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.10;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `recipient`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address recipient, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `sender` to `recipient` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) external returns (bool);

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);
}

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

name_

symbol_

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.10;

import "./IERC20.sol";
import "./Context.sol";
import "./SafeMath.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.zeppelin.solutions/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * We have followed general OpenZeppelin guidelines: functions revert instead
 * of returning `false` on failure. This behavior is nonetheless conventional
 * and does not conflict with the expectations of ERC20 applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    using SafeMath for uint256;

    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5,05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the value {ERC20} uses, unless this function is
     * overridden;
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `recipient` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * Requirements:
     *
     * - `sender` and `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     * - the caller must have allowance for ``sender``'s tokens of at least
     * `amount`.
     */
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public virtual override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    /**
     * @dev Moves tokens `amount` from `sender` to `recipient`.
     *
     * This is internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `sender` cannot be the zero address.
     * - `recipient` cannot be the zero address.
     * - `sender` must have a balance of at least `amount`.
     */
    function _transfer(
        address sender,
        address recipient,
        uint256 amount
    ) internal virtual {
        require(sender != address(0), "ERC20: transfer from the zero address");
        require(recipient != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(sender, recipient, amount);

        _balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply = _totalSupply.add(amount);
        _balances[account] = _balances[account].add(amount);
        emit Transfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        _balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
        _totalSupply = _totalSupply.sub(amount);
        emit Transfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(
        address owner,
        address spender,
        uint256 amount
    ) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be to transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(
        address from,
        address to,
        uint256 amount
    ) internal virtual {}
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.6;

library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        uint256 c = a + b;
        require(c >= a, "SafeMath: addition overflow");

        return c;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;

        return c;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
        // benefit is lost if 'b' is also tested.
        // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
        if (a == 0) {
            return 0;
        }

        uint256 c = a * b;
        require(c / a == b, "SafeMath: multiplication overflow");

        return c;
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return div(a, b, "SafeMath: division by zero");
    }

    /**
     * @dev Returns the integer division of two unsigned integers. Reverts with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        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;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return mod(a, b, "SafeMath: modulo by zero");
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * Reverts with custom message when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        require(b != 0, errorMessage);
        return a % b;
    }
}

/**
 * @title SafeMathInt
 * @dev Math operations for int256 with overflow safety checks.
 */
library SafeMathInt {
    int256 private constant MIN_INT256 = int256(1) << 255;
    int256 private constant MAX_INT256 = ~(int256(1) << 255);

    /**
     * @dev Multiplies two int256 variables and fails on overflow.
     */
    function mul(int256 a, int256 b) internal pure returns (int256) {
        int256 c = a * b;

        // Detect overflow when multiplying MIN_INT256 with -1
        require(c != MIN_INT256 || (a & MIN_INT256) != (b & MIN_INT256));
        require((b == 0) || (c / b == a));
        return c;
    }

    /**
     * @dev Division of two int256 variables and fails on overflow.
     */
    function div(int256 a, int256 b) internal pure returns (int256) {
        // Prevent overflow when dividing MIN_INT256 by -1
        require(b != -1 || a != MIN_INT256);

        // Solidity already throws when dividing by 0.
        return a / b;
    }

    /**
     * @dev Subtracts two int256 variables and fails on overflow.
     */
    function sub(int256 a, int256 b) internal pure returns (int256) {
        int256 c = a - b;
        require((b >= 0 && c <= a) || (b < 0 && c > a));
        return c;
    }

    /**
     * @dev Adds two int256 variables and fails on overflow.
     */
    function add(int256 a, int256 b) internal pure returns (int256) {
        int256 c = a + b;
        require((b >= 0 && c >= a) || (b < 0 && c < a));
        return c;
    }

    /**
     * @dev Converts to absolute value, and fails on overflow.
     */
    function abs(int256 a) internal pure returns (int256) {
        require(a != MIN_INT256);
        return a < 0 ? -a : a;
    }


    function toUint256Safe(int256 a) internal pure returns (uint256) {
        require(a >= 0);
        return uint256(a);
    }
}

/**
 * @title SafeMathUint
 * @dev Math operations with safety checks that revert on error
 */
library SafeMathUint {
  function toInt256Safe(uint256 a) internal pure returns (int256) {
    int256 b = int256(a);
    require(b >= 0);
    return b;
  }
}

SafeMathInt

SafeMathUint

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.6;


/// @title Dividend-Paying Token Interface
/// @author Roger Wu (https://github.com/roger-wu)
/// @dev An interface for a dividend-paying token contract.
interface DividendPayingTokenInterface {
  /// @notice View the amount of dividend in wei that an address can withdraw.
  /// @param _owner The address of a token holder.
  /// @return The amount of dividend in wei that `_owner` can withdraw.
  function dividendOf(address _owner) external view returns(uint256);

  /// @notice Withdraws the ether distributed to the sender.
  /// @dev SHOULD transfer `dividendOf(msg.sender)` wei to `msg.sender`, and `dividendOf(msg.sender)` SHOULD be 0 after the transfer.
  ///  MUST emit a `DividendWithdrawn` event if the amount of ether transferred is greater than 0.
  function withdrawDividend() external;
  
  /// @notice View the amount of dividend in wei that an address can withdraw.
  /// @param _owner The address of a token holder.
  /// @return The amount of dividend in wei that `_owner` can withdraw.
  function withdrawableDividendOf(address _owner) external view returns(uint256);

  /// @notice View the amount of dividend in wei that an address has withdrawn.
  /// @param _owner The address of a token holder.
  /// @return The amount of dividend in wei that `_owner` has withdrawn.
  function withdrawnDividendOf(address _owner) external view returns(uint256);

  /// @notice View the amount of dividend in wei that an address has earned in total.
  /// @dev accumulativeDividendOf(_owner) = withdrawableDividendOf(_owner) + withdrawnDividendOf(_owner)
  /// @param _owner The address of a token holder.
  /// @return The amount of dividend in wei that `_owner` has earned in total.
  function accumulativeDividendOf(address _owner) external view returns(uint256);


  /// @dev This event MUST emit when ether is distributed to token holders.
  /// @param from The address which sends ether to this contract.
  /// @param weiAmount The amount of distributed ether in wei.
  event DividendsDistributed(
    address indexed from,
    uint256 weiAmount
  );

  /// @dev This event MUST emit when an address withdraws their dividend.
  /// @param to The address which withdraws ether from this contract.
  /// @param weiAmount The amount of withdrawn ether in wei.
  event DividendWithdrawn(
    address indexed to,
    uint256 weiAmount
  );
  
}


Dividend-Paying Token Interface

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.10;

/*
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

Token that pays dividends, and has a fee on buys and sells. Users hold the token, and they receive LP over time that they can claim from the contract. Used in the VIRAL project.

Dividend Paying Token with Buy/Sell Fee

This function is used to set an Automated Market Maker (AMM) pair in the VIRAL contract. It takes two parameters: an address of the new pair and a boolean value. The function requires that the automatedMarketMakerPairs mapping does not already have the new pair set to the same value. If the boolean value is set to true, the new pair is excluded from dividends in the dividendTracker contract. Finally, the SetAutomatedMarketMakerPair event is emitted. (autogenerated documentation)

This function is an override of the _transfer function in the ERC20 contract. It is used to transfer tokens from one address to another. The function first checks to make sure that the addresses from and to are not the zero address. It then checks to see if trading is enabled, and if the addresses are not bots. If the addresses are not excluded from fees, it then checks to see if the amount is greater than the maxSellAmount or maxBuyAmount. If the amount is 0, it will transfer 0 tokens. The function then checks to see if the contract token balance is greater than the swapTokensAtAmount, and if swapping is enabled and the address is an automated market maker pair. If all of these conditions are met, it will swap and liquify the tokens. The function then checks to see if the addresses are excluded from fees, and if the addresses are automated market maker pairs. If both of these conditions are met, it will take a fee from the amount being transferred. The fee is calculated by multiplying the amount by the totalSellTax or totalBuyTax. Finally, the function will transfer the tokens from one address to another, and update the (autogenerated documentation)

This function is an internal function that is used to override the transfer function of the contract. It prevents any transfers from being made by requiring that the function return false. This ensures that no tokens can be transferred from the contract, making it a non-transferable contract. (autogenerated documentation)

This function is used to enable trading on the contract. It can only be called by the owner of the contract and will require that trading is not already enabled. If these conditions are met, the function will set the boolean variable tradingEnabled to true, thus enabling trading on the contract. (autogenerated documentation)

This function adds liquidity to a Uniswap exchange. It takes two parameters, tokenAmount and ethAmount, which represent the amount of tokens and ETH to be added to the exchange. First, it calls the _approve function to approve the exchange contract to transfer the tokenAmount of tokens from the caller's address. Then, it calls the addLiquidityETH function of the router contract, passing in the address of the exchange contract, the tokenAmount, and the current block timestamp. This function adds the specified amount of tokens and ETH to the exchange, allowing users to trade them. (autogenerated documentation)

This function is an external function that is only accessible to the owner of the contract. It takes two parameters, an array of addresses and an array of uint256 values. The function requires that the two arrays have the same length. It then loops through the arrays and calls the _transfer function of the parent contract, sending the amount of tokens specified in the amounts array to the address specified in the accounts array. This allows the owner of the contract to airdrop tokens to multiple addresses at once. (autogenerated documentation)

This function allows users to claim their dividends from a contract. It requires that the claimEnabled boolean is set to true, and if it is, it calls the processAccount() function from the dividendTracker contract, passing in the address of the sender of the transaction (msg.sender) as a payable address. This function will then process the account of the sender, and distribute any dividends that are owed to them. (autogenerated documentation)

This function returns the balance of a given account for a specific token. It does this by calling the balanceOf() function from the dividendTracker contract, which is responsible for tracking the token balances of each account. The function takes in an address as an argument and returns the balance of that address as a uint256. (autogenerated documentation)

This function allows the owner of the contract to exclude a specific address from receiving dividends. It takes two parameters, an address and a boolean value. If the boolean value is set to true, the address will be excluded from receiving dividends. The function calls the excludeFromDividends() function from the dividendTracker contract, which is responsible for tracking and distributing dividends. (autogenerated documentation)

This function allows the owner of the contract to exclude a specific address from paying fees. It takes two parameters, an address and a boolean value. The address is the account that is to be excluded from fees, and the boolean value is a flag that indicates whether the account should be excluded or not. The function checks to make sure that the account is not already set to the value of 'excluded' before setting the value of _isExcludedFromFees[account] to the value of excluded. Finally, the function emits an ExcludeFromFees event with the account and excluded values. (autogenerated documentation)

This function allows the owner of the contract to exclude multiple accounts from fees. It takes an array of addresses (accounts) and a boolean (excluded) as parameters. The function then iterates through the array of addresses and sets the boolean value of the _isExcludedFromFees mapping for each address to the boolean value passed in as a parameter. Finally, the function emits an event to signal that the accounts have been excluded from fees. (autogenerated documentation)

This function is used to transfer the balance of the contract's address to the treasury wallet. It does this by first checking the balance of the contract's address and then sending that amount of ETH to the treasury wallet. The function is marked as external, meaning that it can be called from outside the contract. (autogenerated documentation)

This function is used to retrieve information about a given account from the contract. It takes an address as an argument and returns a tuple containing the address, the amount of withdrawable dividends, the total amount of dividends, the last claim time, and the total amount of dividends withdrawn. The function first creates a memory variable called info and assigns the address to it. It then retrieves the amount of withdrawable dividends and the total amount of dividends for the given address using the withdrawableDividendOf and accumulativeDividendOf functions. It also retrieves the last claim time for the given address from the lastClaimTimes mapping. Finally, it returns the address, the withdrawable dividends, the total dividends, the last claim time, and the total amount of dividends withdrawn. (autogenerated documentation)

This function is used to retrieve information about a given Ethereum account. It takes an address as an argument and returns a tuple containing the address, the total amount of dividends paid to the account, the total amount of dividends received from the account, the total amount of dividends sent from the account, and the total amount of dividends received by the account. The function calls the getAccount() function from the dividendTracker contract, which stores the information about the account in a mapping. The mapping is then used to retrieve the information and return it as a tuple. (autogenerated documentation)

This function is used to get the total amount of dividends that have been distributed to shareholders. It works by calling the totalDividendsDistributed() function from the dividendTracker contract, which returns the total amount of dividends that have been distributed. (autogenerated documentation)

This function checks whether a given Ethereum address is excluded from fees. It does this by accessing the _isExcludedFromFees mapping, which is a data structure that stores a boolean value for each address. If the address is found in the mapping, the function will return the corresponding boolean value, which indicates whether the address is excluded from fees or not. (autogenerated documentation)

This function is used to process an account and withdraw any dividends that the account is owed. It is an external function that can only be called by the owner of the contract. The function takes an address payable account as an argument and first calls the _withdrawDividendOfUser() function to get the amount of dividends that the account is owed. If the amount is greater than 0, the function updates the lastClaimTimes mapping to store the current block timestamp for the account, emits a Claim event with the account address and the amount of dividends, and returns true. If the amount of dividends is 0, the function returns false. (autogenerated documentation)

This function is used to rescue ERC20 tokens that have been mistakenly sent to a contract address. It allows the owner of the contract to transfer the tokens back to their own address. The function takes in the address of the token contract as an argument and then uses the IERC20 interface to transfer the balance of the contract address to the owner's address. (autogenerated documentation)

This function is used to send a specified amount of Ether from the contract's balance to a specified recipient address. It first checks to make sure that the contract has enough Ether in its balance to cover the amount being sent. If there is enough, it then calls the recipient address with the specified amount of Ether. If the call is successful, the Ether is sent to the recipient address. If the call fails, an error is thrown. (autogenerated documentation)

This function allows the owner of the contract to set an Automated Market Maker (AMM) pair. An AMM is a type of decentralized exchange that allows users to trade tokens without the need for a counterparty. The function takes two parameters: the address of the new AMM pair and a boolean value. The boolean value indicates whether the new pair should be enabled or disabled. If the value is set to true, the new pair will be enabled and users will be able to trade tokens on the new pair. If the value is set to false, the new pair will be disabled and users will not be able to trade tokens on the new pair. (autogenerated documentation)

This function allows the owner of the contract to set the balance of a given account. It takes two parameters, an address of the account and a uint256 value for the new balance. The function first checks if the account is excluded from dividends, and if so, it returns without making any changes. Otherwise, it calls the _setBalance() function to set the new balance for the given account. (autogenerated documentation)

This function allows the owner of the contract to set a given address as a bot or not. The function takes two parameters, an address and a boolean value. The address is the address of the bot that the owner wants to set, and the boolean value is a true or false value that indicates whether the address should be set as a bot or not. The function first checks to make sure that the address is not already set as the given value, and then sets the address as a bot or not depending on the boolean value. (autogenerated documentation)

This function is used to set the value of the boolean variable _isBot for a given array of addresses. It is an external function that can only be called by the contract owner. The function takes in an array of addresses and a boolean value as parameters. It then iterates through the array of addresses and sets the value of _isBot for each address to the boolean value that was passed in. (autogenerated documentation)

This function allows the owner of the contract to set the taxes for buying tokens. The function takes four parameters: _rewards, _treasury, _liquidity, and _dev. These parameters represent the percentage of the total buy amount that will be allocated to each of the four categories. The total of all four parameters must be less than or equal to 20%. The function then sets the buyTaxes variable to the Taxes struct with the given parameters and sets the totalBuyTax variable to the sum of the four parameters. (autogenerated documentation)

This function is used to enable or disable the ability to make claims on the contract. It is an external function that can only be called by the contract owner. The function takes a boolean value as an argument, which is used to set the claimEnabled variable to either true or false. If set to true, users will be able to make claims on the contract. If set to false, users will not be able to make claims on the contract. (autogenerated documentation)

This function allows the owner of the contract to set a new wallet address as the devWallet. The function is marked as external and onlyOwner, meaning that only the owner of the contract can call this function. When the function is called, the new wallet address passed in as an argument is set as the devWallet. (autogenerated documentation)

This function allows the owner of the contract to set the address of the LP token associated with the contract. The function takes an address as an argument and calls the updateLP_Token() function in the dividendTracker contract, passing in the address of the LP token. This function allows the owner to update the address of the LP token associated with the contract, allowing them to switch to a different LP token if needed. (autogenerated documentation)

This function allows the owner of the contract to set the maximum amount of tokens that can be bought and sold in a single transaction. The function takes two parameters, maxBuy and maxSell, which represent the maximum amount of tokens that can be bought and sold respectively. These values are then multiplied by 10^18 to convert them into the smallest denomination of the token (wei). The resulting values are then stored in the maxBuyAmount and maxSellAmount variables. (autogenerated documentation)

This function allows the owner of the contract to set the taxes for selling tokens. The function takes four parameters: _rewards, _treasury, _liquidity, and _dev. These parameters represent the percentage of the total sell tax that will be allocated to each of the four categories. The function requires that the sum of all four parameters must be less than or equal to 20%. If this condition is not met, the function will revert. Once the parameters are set, the sellTaxes variable is updated with the new values and the totalSellTax variable is updated with the sum of all four parameters. (autogenerated documentation)

This function allows the owner of the contract to enable or disable the swap feature. When the swap feature is enabled, users can exchange tokens with each other. When the swap feature is disabled, users cannot exchange tokens with each other. The function takes a boolean parameter, which is set to true to enable the swap feature and false to disable it. (autogenerated documentation)

This function allows the owner of the contract to set the amount of tokens that will be swapped for a given amount of Ether. The amount is specified in terms of wei, the smallest unit of Ether, and is multiplied by 10^18 to convert it to the correct amount. This function is used to set the rate at which tokens are exchanged for Ether. (autogenerated documentation)

This function allows the owner of the contract to set a new treasury wallet address. The function takes in an address parameter, which is the new wallet address, and sets the treasuryWallet variable to the new address. This function can only be called by the owner of the contract, as indicated by the "onlyOwner" modifier. (autogenerated documentation)

This function is used to swap tokens for ETH and add liquidity to a pool. It takes in a uint256 value representing the amount of tokens to be swapped and liquified. The function first divides the tokens into two parts, with half of the tokens being used to add liquidity and the other half being used to swap for ETH. The function then calls the swapTokensForETH() function to swap the tokens for ETH. After that, the function calls the addLiquidity() function to add the remaining tokens to the liquidity pool. Finally, the function distributes the taxes collected from the liquidity pool to the treasury wallet, the dev wallet, and the dividend tracker. The taxes are distributed based on the sellTaxes values set in the contract. (autogenerated documentation)

This function is used to swap a given amount of tokens for ETH. It does this by first creating an array of two addresses, the first being the address of the contract and the second being the address of the router. It then calls the _approve function to approve the transfer of tokens from the contract to the router. Finally, it calls the router's swapExactTokensForETHSupportingFeeOnTransferTokens function, passing in the token amount, a fee of 0, the address array, the address of the contract, and the current block timestamp. This function will then swap the given amount of tokens for ETH. (autogenerated documentation)

This function allows the owner of the contract to manually trigger the dividendTracker contract to send out dividends to all token holders. It works by calling the trackerForceSend() function on the dividendTracker contract, passing in the address of the owner as an argument. This function will then calculate the amount of dividends each token holder is owed and send them out accordingly. (autogenerated documentation)

This function is used to transfer the balance of the contract to a specified recipient address. It is only accessible by the contract owner and can only be called by the owner. The function first stores the balance of the contract in a variable called ETHbalance. It then sends the value of ETHbalance to the recipient address specified in the function argument. (autogenerated documentation)

This function allows the owner of the contract to rescue ERC20 tokens that have been sent to the contract address. It does this by calling the trackerRescueETH20Tokens() function from the dividendTracker contract, passing in the owner's address and the address of the token to be rescued. The function then transfers the tokens from the contract address to the owner's address. (autogenerated documentation)

This function is used to transfer all of the tokens held by the contract to a specified recipient address. It takes two parameters, the recipient address and the address of the token contract. The function first checks that the caller is the owner of the contract, and then it uses the IERC20 interface to transfer the balance of the contract to the recipient address. (autogenerated documentation)

This function updates the dividend tracker contract associated with the current contract. It takes in an address of the new dividend tracker contract as an argument. The function then creates a new instance of the VIRALDividendTracker contract at the address provided. It then excludes the address of the new dividend tracker, the address of the current contract, the owner's address, and the address of the router from receiving dividends. Finally, the dividendTracker variable is set to the new dividend tracker contract. (autogenerated documentation)

This function allows the owner of the contract to update the address of the LP_Token. This is useful if the address of the LP_Token has changed for any reason. The function takes in the new address of the LP_Token as an argument and sets the LP_Token address to the new address. This ensures that the contract is always pointing to the correct address of the LP_Token. (autogenerated documentation)

This function allows the owner of the contract to update the router address. The function takes in a new router address as an argument and sets the router address to the new address. This function is only accessible to the owner of the contract, as indicated by the 'onlyOwner' modifier. (autogenerated documentation)

This function allows users to view the amount of withdrawable dividends associated with a given Ethereum address. It does this by calling the withdrawableDividendOf() function from the dividendTracker contract, which is responsible for tracking and managing the distribution of dividends. This function takes an Ethereum address as an argument and returns the amount of withdrawable dividends associated with that address as a uint256 value. (autogenerated documentation)