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pragma solidity 0.8.16;
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abstract contract Context {
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function _msgSender() internal view virtual returns (address) {
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return msg.sender;
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}
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}
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interface IERC20 {
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function totalSupply() external view returns (uint256);
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function balanceOf(address account) external view returns (uint256);
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function transfer(address recipient, uint256 amount) external returns (bool);
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function allowance(address owner, address spender) external view returns (uint256);
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function approve(address spender, uint256 amount) external returns (bool);
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function transferFrom(address sender, address recipient, uint256 amount) external returns (bool);
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event Transfer(address indexed from, address indexed to, uint256 value);
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event Approval(address indexed owner, address indexed spender, uint256 value);
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}
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library SafeMath {
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function add(uint256 a, uint256 b) internal pure returns (uint256) {
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uint256 c = a + b;
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require(c >= a, "SafeMath: addition overflow");
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return c;
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}
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function sub(uint256 a, uint256 b) internal pure returns (uint256) {
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return sub(a, b, "SafeMath: subtraction overflow");
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}
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function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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require(b <= a, errorMessage);
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uint256 c = a - b;
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return c;
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}
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function mul(uint256 a, uint256 b) internal pure returns (uint256) {
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if (a == 0) {
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return 0;
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}
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uint256 c = a * b;
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require(c / a == b, "SafeMath: multiplication overflow");
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return c;
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}
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function div(uint256 a, uint256 b) internal pure returns (uint256) {
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return div(a, b, "SafeMath: division by zero");
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}
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function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
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require(b > 0, errorMessage);
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uint256 c = a / b;
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return c;
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}
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}
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contract Ownable is Context {
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address private _owner;
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address private _previousOwner;
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event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
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constructor () {
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address msgSender = _msgSender();
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_owner = msgSender;
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emit OwnershipTransferred(address(0), msgSender);
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}
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function owner() public view returns (address) {
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return _owner;
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}
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modifier onlyOwner() {
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require(_owner == _msgSender(), "Ownable: caller is not the owner");
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_;
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}
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function renounceOwnership() public virtual onlyOwner {
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emit OwnershipTransferred(_owner, address(0));
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_owner = address(0);
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}
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}
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interface IUniswapV2Factory {
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function createPair(address tokenA, address tokenB) external returns (address pair);
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}
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interface IUniswapV2Router02 {
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function swapExactTokensForETHSupportingFeeOnTransferTokens(
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uint amountIn,
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uint amountOutMin,
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address[] calldata path,
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address to,
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uint deadline
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) external;
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function factory() external pure returns (address);
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function WETH() external pure returns (address);
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function addLiquidityETH(
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address token,
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uint amountTokenDesired,
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uint amountTokenMin,
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uint amountETHMin,
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address to,
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uint deadline
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) external payable returns (uint amountToken, uint amountETH, uint liquidity);
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}
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contract LiquidityDAO is Context, IERC20, Ownable {
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using SafeMath for uint256;
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mapping (address => uint256) private _rOwned;
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mapping (address => uint256) private _tOwned;
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mapping (address => mapping (address => uint256)) private _allowances;
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mapping (address => bool) private _isExcludedFromFee;
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mapping (address => bool) private bots;
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mapping (address => uint) private cooldown;
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uint256 private constant MAX = ~uint256(0);
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uint256 private constant _tTotal = 1000000000 * 10**8;
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uint256 private _rTotal = (MAX - (MAX % _tTotal));
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uint256 private _tFeeTotal;
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uint256 private _feeAddr1;
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uint256 private _feeAddr2;
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uint256 private _initialTax;
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uint256 private _finalTax;
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uint256 private _reduceTaxTarget;
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uint256 private _reduceTaxCountdown;
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address payable private _feeAddrWallet;
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string private constant _name = "Liquidity DAO";
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string private constant _symbol = "LIDA";
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uint8 private constant _decimals = 8;
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IUniswapV2Router02 private uniswapV2Router;
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address private uniswapV2Pair;
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bool private tradingOpen;
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bool private inSwap = false;
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bool private swapEnabled = false;
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bool private cooldownEnabled = false;
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uint256 public _maxTxAmount = _tTotal.mul(20).div(1000);
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uint256 public _maxWalletSize = _tTotal.mul(30).div(1000);
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event MaxTxAmountUpdated(uint _maxTxAmount);
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modifier lockTheSwap {
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inSwap = true;
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_;
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inSwap = false;
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}
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constructor () {
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_feeAddrWallet = payable(_msgSender());
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_rOwned[_msgSender()] = _rTotal;
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_isExcludedFromFee[owner()] = true;
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_isExcludedFromFee[address(this)] = true;
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_isExcludedFromFee[_feeAddrWallet] = true;
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_initialTax=5;
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_finalTax=5;
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_reduceTaxCountdown=20;
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_reduceTaxTarget = _reduceTaxCountdown.div(2);
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emit Transfer(address(0), _msgSender(), _tTotal);
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}
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function name() public pure returns (string memory) {
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return _name;
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}
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function symbol() public pure returns (string memory) {
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return _symbol;
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}
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function decimals() public pure returns (uint8) {
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return _decimals;
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}
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function totalSupply() public pure override returns (uint256) {
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return _tTotal;
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}
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function balanceOf(address account) public view override returns (uint256) {
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return tokenFromReflection(_rOwned[account]);
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}
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function transfer(address recipient, uint256 amount) public override returns (bool) {
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_transfer(_msgSender(), recipient, amount);
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return true;
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}
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function allowance(address owner, address spender) public view override returns (uint256) {
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return _allowances[owner][spender];
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}
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function approve(address spender, uint256 amount) public override returns (bool) {
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_approve(_msgSender(), spender, amount);
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return true;
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}
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function transferFrom(address sender, address recipient, uint256 amount) public override returns (bool) {
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_transfer(sender, recipient, amount);
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_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
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return true;
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}
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function setCooldownEnabled(bool onoff) external onlyOwner() {
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cooldownEnabled = onoff;
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}
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function tokenFromReflection(uint256 rAmount) private view returns(uint256) {
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require(rAmount <= _rTotal, "Amount must be less than total reflections");
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uint256 currentRate = _getRate();
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return rAmount.div(currentRate);
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}
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function _approve(address owner, address spender, uint256 amount) private {
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require(owner != address(0), "ERC20: approve from the zero address");
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require(spender != address(0), "ERC20: approve to the zero address");
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_allowances[owner][spender] = amount;
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emit Approval(owner, spender, amount);
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}
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function _transfer(address from, address to, uint256 amount) private {
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require(from != address(0), "ERC20: transfer from the zero address");
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require(to != address(0), "ERC20: transfer to the zero address");
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require(amount > 0, "Transfer amount must be greater than zero");
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if (from != owner() && to != owner()) {
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require(!bots[from] && !bots[to]);
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_feeAddr1 = 0;
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_feeAddr2 = (_reduceTaxCountdown==0)?_finalTax:_initialTax;
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if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] && cooldownEnabled) {
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require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
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require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");
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if(_reduceTaxCountdown>0){_reduceTaxCountdown--;}
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}
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uint256 contractTokenBalance = balanceOf(address(this));
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if (!inSwap && from != uniswapV2Pair && swapEnabled && contractTokenBalance>0 && _reduceTaxCountdown<_reduceTaxTarget) {
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swapTokensForEth(contractTokenBalance);
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uint256 contractETHBalance = address(this).balance;
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if(contractETHBalance > 0) {
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sendETHToFee(address(this).balance);
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}
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}
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}else{
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_feeAddr1 = 0;
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_feeAddr2 = 0;
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}
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_tokenTransfer(from,to,amount);
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}
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function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
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address[] memory path = new address[](2);
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path[0] = address(this);
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path[1] = uniswapV2Router.WETH();
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_approve(address(this), address(uniswapV2Router), tokenAmount);
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uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
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tokenAmount,
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0,
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path,
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address(this),
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block.timestamp
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);
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}
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function removeLimits() external onlyOwner{
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_maxTxAmount = _tTotal;
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_maxWalletSize = _tTotal;
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}
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function sendETHToFee(uint256 amount) private {
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_feeAddrWallet.transfer(amount);
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}
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function addBots(address[] memory bots_) public onlyOwner {
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for (uint i = 0; i < bots_.length; i++) {
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bots[bots_[i]] = true;
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}
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}
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function delBots(address[] memory notbot) public onlyOwner {
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for (uint i = 0; i < notbot.length; i++) {
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bots[notbot[i]] = false;
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}
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}
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function openTrading() external onlyOwner() {
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require(!tradingOpen,"trading is already open");
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IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
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uniswapV2Router = _uniswapV2Router;
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_approve(address(this), address(uniswapV2Router), _tTotal);
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uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
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uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
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swapEnabled = true;
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cooldownEnabled = true;
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tradingOpen = true;
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IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
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}
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function _tokenTransfer(address sender, address recipient, uint256 amount) private {
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_transferStandard(sender, recipient, amount);
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}
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function _transferStandard(address sender, address recipient, uint256 tAmount) private {
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(uint256 rAmount, uint256 rTransferAmount, uint256 rFee, uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getValues(tAmount);
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_rOwned[sender] = _rOwned[sender].sub(rAmount);
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_rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
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_takeTeam(tTeam);
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_reflectFee(rFee, tFee);
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emit Transfer(sender, recipient, tTransferAmount);
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}
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function _takeTeam(uint256 tTeam) private {
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uint256 currentRate = _getRate();
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uint256 rTeam = tTeam.mul(currentRate);
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_rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
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}
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function _reflectFee(uint256 rFee, uint256 tFee) private {
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_rTotal = _rTotal.sub(rFee);
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_tFeeTotal = _tFeeTotal.add(tFee);
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}
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receive() external payable {}
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function manualswap() external {
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require(_msgSender() == _feeAddrWallet);
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uint256 contractBalance = balanceOf(address(this));
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swapTokensForEth(contractBalance);
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}
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function manualsend() external {
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require(_msgSender() == _feeAddrWallet);
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uint256 contractETHBalance = address(this).balance;
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sendETHToFee(contractETHBalance);
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}
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function _getValues(uint256 tAmount) private view returns (uint256, uint256, uint256, uint256, uint256, uint256) {
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(uint256 tTransferAmount, uint256 tFee, uint256 tTeam) = _getTValues(tAmount, _feeAddr1, _feeAddr2);
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uint256 currentRate = _getRate();
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(uint256 rAmount, uint256 rTransferAmount, uint256 rFee) = _getRValues(tAmount, tFee, tTeam, currentRate);
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return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
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}
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function _getTValues(uint256 tAmount, uint256 taxFee, uint256 TeamFee) private pure returns (uint256, uint256, uint256) {
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uint256 tFee = tAmount.mul(taxFee).div(100);
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uint256 tTeam = tAmount.mul(TeamFee).div(100);
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uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
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return (tTransferAmount, tFee, tTeam);
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}
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function _getRValues(uint256 tAmount, uint256 tFee, uint256 tTeam, uint256 currentRate) private pure returns (uint256, uint256, uint256) {
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uint256 rAmount = tAmount.mul(currentRate);
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uint256 rFee = tFee.mul(currentRate);
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uint256 rTeam = tTeam.mul(currentRate);
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uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);
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return (rAmount, rTransferAmount, rFee);
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}
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function _getRate() private view returns(uint256) {
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(uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
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return rSupply.div(tSupply);
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}
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function _getCurrentSupply() private view returns(uint256, uint256) {
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uint256 rSupply = _rTotal;
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uint256 tSupply = _tTotal;
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if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
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return (rSupply, tSupply);
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}
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} |
