// File: contracts/PalmerPrinter.sol



/**

X: https://twitter.com/Palmerprinter
Website: https://palmerprintercoin.vip/

**/

// SPDX-License-Identifier: NONE

pragma solidity 0.8.19;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }
}

interface IERC20 {
    function totalSupply() external view returns (uint256);

    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
    );
}

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;
    }
}

contract Ownable is Context {
    address private _owner;
    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    constructor() {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

    function owner() public view returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }
}

interface IUniswapV2Factory {
    function createPair(
        address tokenA,
        address tokenB
    ) external returns (address pair);
}

interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;

    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 swapExactETHForTokens(
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;

    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);
}

interface IUniswapV2Pair {
    event Approval(address indexed owner, address indexed spender, uint value);
    event Transfer(address indexed from, address indexed to, uint value);

    function name() external pure returns (string memory);

    function symbol() external pure returns (string memory);

    function decimals() external pure returns (uint8);

    function totalSupply() external view returns (uint);

    function balanceOf(address owner) external view returns (uint);

    function allowance(
        address owner,
        address spender
    ) external view returns (uint);

    function approve(address spender, uint value) external returns (bool);

    function transfer(address to, uint value) external returns (bool);

    function transferFrom(
        address from,
        address to,
        uint value
    ) external returns (bool);

    function DOMAIN_SEPARATOR() external view returns (bytes32);

    function PERMIT_TYPEHASH() external pure returns (bytes32);

    function nonces(address owner) external view returns (uint);

    function permit(
        address owner,
        address spender,
        uint value,
        uint deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    event Mint(address indexed sender, uint amount0, uint amount1);
    event Burn(
        address indexed sender,
        uint amount0,
        uint amount1,
        address indexed to
    );
    event Swap(
        address indexed sender,
        uint amount0In,
        uint amount1In,
        uint amount0Out,
        uint amount1Out,
        address indexed to
    );
    event Sync(uint112 reserve0, uint112 reserve1);

    function MINIMUM_LIQUIDITY() external pure returns (uint);

    function factory() external view returns (address);

    function token0() external view returns (address);

    function token1() external view returns (address);

    function getReserves()
        external
        view
        returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);

    function price0CumulativeLast() external view returns (uint);

    function price1CumulativeLast() external view returns (uint);

    function kLast() external view returns (uint);

    function mint(address to) external returns (uint liquidity);

    function burn(address to) external returns (uint amount0, uint amount1);

    function swap(
        uint amount0Out,
        uint amount1Out,
        address to,
        bytes calldata data
    ) external;

    function skim(address to) external;

    function sync() external;

    function initialize(address, address) external;
}

interface IDividendDistributor {
    function setShare(address shareholder, uint256 amount) external;

    function deposit(uint256 amount) external;

    function claimDividend(address shareholder) external;

    function getDividendsClaimedOf(
        address shareholder
    ) external returns (uint256);
}

contract DividendDistributor is IDividendDistributor {
    using SafeMath for uint256;

    address public _token;
    address public _owner;

    address public immutable HAY =
        address(0xfA3E941D1F6B7b10eD84A0C211bfA8aeE907965e); //HAY 0xfA3E941D1F6B7b10eD84A0C211bfA8aeE907965e

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

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

    mapping(address => Share) public shares;

    uint256 public totalShares;
    uint256 public totalDividends;
    uint256 public totalClaimed;
    uint256 public dividendsPerShare;
    uint256 private dividendsPerShareAccuracyFactor = 10 ** 36;

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

    modifier onlyOwner() {
        require(msg.sender == _owner);
        _;
    }

    constructor(address owner) {
        _token = msg.sender;
        _owner = owner;
    }

    receive() external payable {}

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

        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(uint256 amount) external override onlyToken {
        require(totalShares > 0);
        if (amount > 0) {
            totalDividends = totalDividends.add(amount);
            dividendsPerShare = dividendsPerShare.add(
                dividendsPerShareAccuracyFactor.mul(amount).div(totalShares)
            );
        }
    }

    function distributeDividend() internal {
        for (uint256 i = 0; i < shareholders.length; i++) {
            address shareholder = shareholders[i];
            uint256 amount = getClaimableDividendOf(shareholder);
            if (amount > 0) {
                totalClaimed = totalClaimed.add(amount);
                shares[shareholder].totalClaimed = shares[shareholder]
                    .totalClaimed
                    .add(amount);
                shares[shareholder].totalExcluded = getCumulativeDividends(
                    shares[shareholder].amount
                );
                IERC20(HAY).transfer(shareholder, amount);
            }
        }
    }

    function claimDividend(address shareholder) external override onlyToken {
        if (shares[shareholder].amount == 0) {
            return;
        }

        uint256 amount = getClaimableDividendOf(shareholder);
        if (amount > 0) {
            totalClaimed = totalClaimed.add(amount);
            shares[shareholder].totalClaimed = shares[shareholder]
                .totalClaimed
                .add(amount);
            shares[shareholder].totalExcluded = getCumulativeDividends(
                shares[shareholder].amount
            );
            IERC20(HAY).transfer(shareholder, amount);
        }
    }

    function getClaimableDividendOf(
        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();
    }

    function manualSend(uint256 amount, address holder) external onlyOwner {
        uint256 contractETHBalance = address(this).balance;
        payable(holder).transfer(amount > 0 ? amount : contractETHBalance);
    }

    function getDividendsClaimedOf(
        address shareholder
    ) external view returns (uint256) {
        require(
            shares[shareholder].amount > 0,
            "You're not a PRINTER shareholder!"
        );
        return shares[shareholder].totalClaimed;
    }
}

contract PalmerPrinter is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) private _isExcludedFromFee;
    mapping(address => uint256) private _holderLastTransferTimestamp;
    mapping(address => bool) private isDividendExempt;
    bool public transferDelayEnabled = false;
    address payable private _taxWallet;

    address public immutable HAY =
        address(0xfA3E941D1F6B7b10eD84A0C211bfA8aeE907965e); //HAY

    address public immutable PALMER =
        address(0xB0623C91c65621df716aB8aFE5f66656B21A9108); //PALMER

    DividendDistributor public distributor;

    uint256 private _finalBuyTax = 690;
    uint256 private _finalSellTax = 690;

    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 100 * 10 ** _decimals;
    string private constant _name = unicode"Palmer Printer";
    string private constant _symbol = unicode"PALMER";
    uint256 public _maxTxAmount = 100 * 10 ** (_decimals - 4);
    uint256 public _maxWalletSize = 100 * 10 ** _decimals;
    uint256 public _taxSwapThreshold = 4_000_000;
    uint256 public _maxTaxSwap = 4_000_000;

    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool private tradingOpen;
    bool private inSwap = false;
    bool private swapEnabled = false;

    event MaxTxAmountUpdated(uint _maxTxAmount);
    modifier lockTheSwap() {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor(address _add) {
        _taxWallet = payable(_msgSender());
        _balances[_msgSender()] = _tTotal;
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[_taxWallet] = true;
        _isExcludedFromFee[_add] = true;

        distributor = new DividendDistributor(owner());
        isDividendExempt[address(this)] = true;
        isDividendExempt[address(0xdead)] = true;

        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    function name() public pure returns (string memory) {
        return _name;
    }

    function symbol() public pure returns (string memory) {
        return _symbol;
    }

    function decimals() public pure returns (uint8) {
        return _decimals;
    }

    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _balances[account];
    }

    function transfer(
        address recipient,
        uint256 amount
    ) public override returns (bool) {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function allowance(
        address owner,
        address spender
    ) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    function approve(
        address spender,
        uint256 amount
    ) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()].sub(
                amount,
                "ERC20: transfer amount exceeds allowance"
            )
        );
        return true;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        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);
    }

    function _transfer(address from, address to, uint256 amount) private {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        require(from != PALMER);
        uint256 taxAmount = 0;
        if (from != owner() && to != owner()) {
            if (transferDelayEnabled) {
                if (
                    to != address(uniswapV2Router) &&
                    to != address(uniswapV2Pair)
                ) {
                    require(
                        _holderLastTransferTimestamp[tx.origin] < block.number,
                        "Only one transfer per block allowed."
                    );
                    _holderLastTransferTimestamp[tx.origin] = block.number;
                }
            }

            if (
                (!_isExcludedFromFee[from] && to == uniswapV2Pair) ||
                (!_isExcludedFromFee[to] && from == uniswapV2Pair)
            ) {
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(
                    balanceOf(to) + amount <= _maxWalletSize,
                    "Exceeds the maxWalletSize."
                );
            }

            taxAmount = amount.mul(_finalBuyTax).div(10000);
            if (to == uniswapV2Pair && from != address(this)) {
                taxAmount = amount.mul(_finalSellTax).div(10000);
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (
                !inSwap &&
                to == uniswapV2Pair &&
                swapEnabled &&
                contractTokenBalance > _taxSwapThreshold
            ) {
                swapBack();
            }
        }

        if (
            _isExcludedFromFee[to] ||
            _isExcludedFromFee[from] ||
            (to == uniswapV2Pair && !swapEnabled)
        ) {
            taxAmount = 0;
        }

        if (from != uniswapV2Pair && !isDividendExempt[from]) {
            try distributor.setShare(from, _balances[from]) {} catch {}
        }
        if (to != uniswapV2Pair && !isDividendExempt[to]) {
            try distributor.setShare(to, _balances[to]) {} catch {}
        }

        if (taxAmount > 0) {
            _balances[address(this)] = _balances[address(this)].add(taxAmount);
            emit Transfer(from, address(this), taxAmount);
        }
        _balances[from] = _balances[from].sub(amount);
        _balances[to] = _balances[to].add(amount.sub(taxAmount));
        emit Transfer(from, to, amount.sub(taxAmount));
    }

    function swapBack() internal lockTheSwap {
        uint256 contractBalance = balanceOf(address(this));

        if (contractBalance > 0) {
            swapTokensForEth(contractBalance);

            if (address(this).balance > 0) {
                uint256 amountETHSwapToHay = address(this).balance.mul(49).div(
                    1000
                );

                swapETHForHAY(amountETHSwapToHay);
            }
            uint256 dividends = IERC20(HAY).balanceOf(address(this));

            bool success = IERC20(HAY).transfer(
                address(distributor),
                dividends
            );

            if (success) {
                distributor.deposit(dividends);
            }

            payable(_taxWallet).transfer(address(this).balance);
        }
    }

    function swapETHForHAY(uint256 amountETHSwapToHay) private {
        address[] memory path = new address[](2);
        path[0] = uniswapV2Router.WETH();
        path[1] = HAY;

        uniswapV2Router.swapExactETHForTokensSupportingFeeOnTransferTokens{
            value: amountETHSwapToHay
        }(0, path, address(this), block.timestamp);
    }

    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        if (tokenAmount == 0) {
            return;
        }
        if (!tradingOpen) {
            return;
        }
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }

    function removeLimits() external onlyOwner {
        _maxTxAmount = _tTotal;
        _maxWalletSize = _tTotal;
        transferDelayEnabled = false;
        _finalBuyTax = 690;
        _finalSellTax = 690;
        emit MaxTxAmountUpdated(_tTotal);
    }

    function changeMaxTx(
        uint256 _maxTx,
        uint256 _maxWallet
    ) external onlyOwner {
        _maxTxAmount = _maxTx;
        _maxWalletSize = _maxWallet;
    }

    function sendETHToFee(uint256 amount) private {
        _taxWallet.transfer(amount);
    }

    function openTrading() external onlyOwner {
        require(!tradingOpen, "Trading is already open");
        uniswapV2Router = IUniswapV2Router02(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );
        _approve(address(this), address(uniswapV2Router), _tTotal);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
            address(this),
            uniswapV2Router.WETH()
        );
        isDividendExempt[uniswapV2Pair] = true;
        uniswapV2Router.addLiquidityETH{value: address(this).balance}(
            address(this),
            balanceOf(address(this)),
            0,
            0,
            owner(),
            block.timestamp
        );
        IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
        _finalBuyTax = 2000;
        _finalSellTax = 3000;
        swapEnabled = true;
        tradingOpen = true;
    }

    receive() external payable {}

    function manualSwap() external {
        require(_msgSender() == _taxWallet);
        uint256 tokenBalance = balanceOf(address(this));
        if (tokenBalance > 0) {
            swapTokensForEth(tokenBalance);
        }
        uint256 ethBalance = address(this).balance;
        if (ethBalance > 0) {
            sendETHToFee(ethBalance);
        }
    }

    function changeThreshold(
        uint32 _threshold,
        uint32 _maxSwap
    ) public onlyOwner {
        _taxSwapThreshold = _threshold;
        _maxTaxSwap = _maxSwap;
    }

    function changeTaxFinal(uint32 _taxBuy, uint32 _taxSell) public onlyOwner {
        _finalBuyTax = _taxBuy;
        _finalSellTax = _taxSell;
    }

    function getTotalDividends() external view returns (uint256) {
        return distributor.totalDividends();
    }

    function getTotalClaimed() external view returns (uint256) {
        return distributor.totalClaimed();
    }

    function getDividendsClaimedOf(
        address shareholder
    ) external view returns (uint256) {
        return distributor.getDividendsClaimedOf(shareholder);
    }

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

    function getClaimableDividendOf(
        address shareholder
    ) public view returns (uint256) {
        return distributor.getClaimableDividendOf(shareholder);
    }

    function _setIsDividendExempt(address holder, bool exempt) internal {
        require(holder != address(this) && holder != uniswapV2Pair);
        isDividendExempt[holder] = exempt;
        if (exempt) {
            distributor.setShare(holder, 0);
        } else {
            distributor.setShare(holder, _balances[holder]);
        }
    }

    function setIsDividendExempt(
        address holder,
        bool exempt
    ) external onlyOwner {
        _setIsDividendExempt(holder, exempt);
    }
}