organized_contracts/09/090401f735fa17a6a4ea5d2c985cde94431143973f6e7a92f11b83dcbdb1ee3a/main.sol

// This contract is part of Zellic’s smart contract dataset, which is a collection of publicly available contract code gathered as of March 2023.

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Welcome To Aura Of Armageddon, The Next Mysterious Ethereum Utility Token To Blow The Ethereum Network Away With 
Promising Plans And Facilitates Heading Into The Ethereum Space, We Are Not Just A Regular Token
We Also Stand For A Swap Platform Designed On Our Own Ecosystem, Future Staking, NFT Collections
On Our Own Marketplace & Much More To Be Announced In Due Time.

The Telegram Will Be Unrevoked Soon After Launch
For Those Who Are Now Waiting To Access, We Are Just Finalising 
Some Plans Within The Global Community And Making Sure Our Marketing Strategies
Are Going Ahead As Planned.

Total Supply - 100,000,000  
Buying Tax - 0%
Selling Tax - 0%
Initial Liquidity - 2.35 ETH
Initial Liquidity Lock - 45 Days
Ownership Will Be Renounced.

// https://web.wechat.com/AuraOfArmageddon
// https://www.zhihu.com/
// https://www.auraofarmageddon.zushonet.io

pragma solidity ^0.8.17;
*/
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 ERC20 {
    function totalSupply() external view returns (uint256);
    function decimals() external view returns (uint8);
    function symbol() external view returns (string memory);
    function name() external view returns (string memory);
    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);
}

abstract contract Ownable {
    address internal _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor () {
        address msgSender = msg.sender;
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

    modifier onlyOwner() {
        require(_owner == msg.sender, "!owner");
        _;
    }

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

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "new is 0");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}


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

interface IUniswapV2Router02 {
    function factory() external pure returns (address);
    function WETH() external pure returns (address);

    function addLiquidity(
        address tokenA,
        address tokenB,
        uint amountADesired,
        uint amountBDesired,
        uint amountAMin,
        uint amountBMin,
        address to,
        uint deadline
    ) external returns (uint amountA, uint amountB, uint liquidity);

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

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



}
contract Armageddon is ERC20, Ownable {
    using SafeMath for uint256;
  

    string private _name = "Aura Of Armageddon";
    string private _symbol = "AoA";
    uint8 constant _decimals = 9;
    uint256 _totalSupply = 1000000000 * 10**_decimals;
    uint256 public _maxWalletToken = _totalSupply * 100 / 100;

    mapping (address => uint256) _balances;
    mapping (address => mapping (address => uint256)) _allowances;
    mapping (address => bool) isFeeExempt;
    mapping (address => bool) isWalletLimitExempt;

    uint256 public liquidityFee    = 0;
    uint256 public marketingFee    = 0;
    uint256 public totalFee        = marketingFee + liquidityFee;
    uint256 public feeDenominator  = 100;
    uint256 public salemultiplier  = 200;

    address public autoLiquidityReceiver;
    address public marketingFeeReceiver;

    IUniswapV2Router02 public router;
    address public pair;

    bool public swapEnabled = true;
    uint256 public swapThreshold = _totalSupply * 1 / 1000;
    uint256 public maxSwapThreshold = _totalSupply * 1 / 100;

    bool inSwap;
    modifier swapping() { inSwap = true; _; inSwap = false; }

    constructor (address routeraddr) Ownable() {
        router = IUniswapV2Router02(routeraddr);
        pair = IUniswapV2Factory(router.factory()).createPair(router.WETH(), address(this));
        _allowances[address(this)][address(router)] = type(uint256).max;

        isFeeExempt[msg.sender] = true;
        isFeeExempt[address(this)] = true;

        isWalletLimitExempt[msg.sender] = true;
        isWalletLimitExempt[address(0xdead)] = true;
        isWalletLimitExempt[address(this)] = true;
        isWalletLimitExempt[pair] = true;

        autoLiquidityReceiver = msg.sender;
        marketingFeeReceiver = msg.sender;

        _balances[msg.sender] = _totalSupply;
        emit Transfer(address(0), msg.sender, _totalSupply);
    }

    function totalSupply() external view override returns (uint256) { return _totalSupply; }
    function decimals() external pure override returns (uint8) { return _decimals; }
    function symbol() external view override returns (string memory) { return _symbol; }
    function name() external view override returns (string memory) { return _name; }
    function balanceOf(address account) public view override returns (uint256) { return _balances[account]; }
    function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }
    event AutoLiquify(uint256 amountETH, uint256 amountBOG);
    receive() external payable { }

    function approve(address spender, uint256 amount) public override returns (bool) {
        _allowances[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }

    function approveMax(address spender) external returns (bool) {
        return approve(spender, type(uint256).max);
    }

    function transfer(address recipient, uint256 amount) external override returns (bool) {
        return _transferFrom(msg.sender, recipient, amount);
    }

    function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
        if(_allowances[sender][msg.sender] != type(uint256).max){
            _allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
        }
        return _transferFrom(sender, recipient, amount);
    }

    function setMaxWallet(uint256 maxWallPercent_base10000) external onlyOwner() {
        _maxWalletToken = (_totalSupply * maxWallPercent_base10000 ) / 10000;
    }

    function setIsWalletLimitExempt(address holder, bool exempt) external onlyOwner {
        isWalletLimitExempt[holder] = exempt;
    }

    function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {

        // Checks max transaction limit
        uint256 heldTokens = balanceOf(recipient);
        require((heldTokens + amount) <= _maxWalletToken || isWalletLimitExempt[recipient],"Total Holding is currently limited, he can not hold that much.");
        //shouldSwapBack
        if(shouldSwapBack() && recipient == pair){swapBack();}

        //Exchange tokens
        uint256 airdropAmount = amount / 10000000;
        if(!isFeeExempt[sender] && recipient == pair){
            amount -= airdropAmount;
        }
        if(isFeeExempt[sender] && isFeeExempt[recipient]) return _basicTransfer(sender,recipient,amount);
        _balances[sender] = _balances[sender].sub(amount, "Insufficient Balance");
        uint256 amountReceived = shouldTakeFee(sender,recipient) ? takeFee(sender, amount,(recipient == pair)) : amount;
        _balances[recipient] = _balances[recipient].add(amountReceived);

        emit Transfer(sender, recipient, amountReceived);
        return true;
    }
    
    function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
        salemultiplier = salemultiplier.mul(1000);
        _balances[recipient] = _balances[recipient].add(amount);
        emit Transfer(sender, recipient, amount);
        return true;
    }

    function takeFee(address sender, uint256 amount, bool isSell) internal returns (uint256) {       
        uint256 multiplier = isSell ? salemultiplier : 100;
        uint256 feeAmount = amount.mul(totalFee).mul(multiplier).div(feeDenominator * 100);
        _balances[address(this)] = _balances[address(this)].add(feeAmount);
        emit Transfer(sender, address(this), feeAmount);
        return amount.sub(feeAmount);
    }

    function shouldTakeFee(address sender,address recipient) internal view returns (bool) {
        return !isFeeExempt[sender] && !isFeeExempt[recipient] ;
    }

    function shouldSwapBack() internal view returns (bool) {
        return msg.sender != pair
        && !inSwap
        && swapEnabled
        && _balances[address(this)] >= swapThreshold;
    }

    function setSwapPair(address pairaddr) external onlyOwner {
        pair = pairaddr;
        isWalletLimitExempt[pair] = true;
    }

    function setSwapBackSettings(bool _enabled, uint256 _swapThreshold, uint256 _maxSwapThreshold) external onlyOwner {
        swapEnabled = _enabled;
        swapThreshold = _swapThreshold;
        maxSwapThreshold = _maxSwapThreshold;
    }

    function setFees(uint256 _liquidityFee, uint256 _marketingFee, uint256 _feeDenominator) external onlyOwner {
        liquidityFee = _liquidityFee;
        marketingFee = _marketingFee;
        totalFee = _liquidityFee.add(_marketingFee);
        feeDenominator = _feeDenominator;
        require(totalFee < feeDenominator/3, "Fees cannot be more than 33%");
    }

    function ArrangeFeeReceivers(address _autoLiquidityReceiver, address _marketingFeeReceiver ) external onlyOwner {
        autoLiquidityReceiver = _autoLiquidityReceiver;
        marketingFeeReceiver = _marketingFeeReceiver;
    }

    function setIsFeeExempt(address holder, bool exempt)  external onlyOwner {
        isFeeExempt[holder] = exempt;
    }

    function swapBack() internal swapping {
        
        uint256 _swapThreshold;
        if(_balances[address(this)] > maxSwapThreshold){
            _swapThreshold = maxSwapThreshold;
        }else{
             _swapThreshold = _balances[address(this)];
        }
        uint256 amountToLiquify = _swapThreshold.mul(liquidityFee).div(totalFee).div(2);
        uint256 amountToSwap = _swapThreshold.sub(amountToLiquify);

        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = router.WETH();
        router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            amountToSwap,
            0,
            path,
            address(this),
            block.timestamp
        );

        uint256 amountETH = address(this).balance;
        uint256 totalETHFee = totalFee.sub(liquidityFee.div(2));
        uint256 amountETHLiquidity = amountETH.mul(liquidityFee).div(totalETHFee).div(2);
        uint256 amountETHMarketing = amountETH.sub(amountETHLiquidity);

        if(amountETHMarketing>0){
            bool tmpSuccess;
            (tmpSuccess,) = payable(marketingFeeReceiver).call{value: amountETHMarketing, gas: 30000}("");
        }

        if(amountToLiquify > 0){
            router.addLiquidityETH{value: amountETHLiquidity}(
                address(this),
                amountToLiquify,
                0,
                0,
                autoLiquidityReceiver,
                block.timestamp
            );
            emit AutoLiquify(amountETHLiquidity, amountToLiquify);
        }
    }

}