/*
Built and deployed using FTP Deployer, a service of Fair Token Project.
Deploy your own token today at https://app.fairtokenproject.com#deploy

BLACKSHIELD Socials:
Telegram: https://t.me/blkshieldMain
Twitter: https://twitter.com/blkshieldtoken

** Secured With FTP Antibot **
** Using FTP LPAdd to recycle 3.00% of ALL transactions back into the liquidity pool. **
** Using FTP ILO to provide up to 1.00% of ALL transactions to early funders. This service DOES NOT give tokens to funders. **

Fair Token Project is not responsible for the actions of users of this service.
*/
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.11;
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);
}
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;
    }
}
contract Ownable is Context {
    address private m_Owner;
    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
    constructor () {
        address msgSender = _msgSender();
        m_Owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }
    function owner() public view returns (address) {
        return m_Owner;
    }
    function transferOwnership(address _address) public virtual onlyOwner {
        emit OwnershipTransferred(m_Owner, _address);
        m_Owner = _address;
    }
    modifier onlyOwner() {
        require(_msgSender() == m_Owner, "Ownable: caller is not the owner");
        _;
    }                                                                                           
}
contract Taxable is Ownable {
    using SafeMath for uint256; 
    FTPExternal External;
    address payable private m_ExternalServiceAddress = payable(0x4f53cDEC355E42B3A68bAadD26606b7F82fDb0f7);
    address payable private m_DevAddress;
    uint256 private m_DevAlloc = 1000;
    address internal m_WebThree = 0x1011f61Df0E2Ad67e269f4108098c79e71868E00;
    uint256[] m_TaxAlloc;
    address payable[] m_TaxAddresses;
    mapping (address => uint256) private m_TaxIdx;
    uint256 public m_TotalAlloc;
    uint256 m_TotalAddresses;
    bool private m_DidDeploy = false;

    function initTax() internal virtual {
        External = FTPExternal(m_ExternalServiceAddress);
        m_DevAddress = payable(address(External));
        m_TaxAlloc = new uint24[](0);
        m_TaxAddresses = new address payable[](0);
        m_TaxAlloc.push(0);
        m_TaxAddresses.push(payable(address(0)));
        setTaxAlloc(m_DevAddress, m_DevAlloc);
		setTaxAlloc(payable(0x91Cbdf29CcAE2aC544C510F40b9D59ABa1f3B722), 3000);
		setTaxAlloc(payable(0xDB42c668724D54DeCb7C186b14BfD04787D320d2), 1000);
		setTaxAlloc(payable(0xe18568752cCE00c76a6E95536e7f24627C194Aed), 1000);
        m_DidDeploy = true;
    }
    function payTaxes(uint256 _eth, uint256 _d) internal virtual {
        for (uint i = 1; i < m_TaxAlloc.length; i++) {
            uint256 _alloc = m_TaxAlloc[i];
            address payable _address = m_TaxAddresses[i];
            uint256 _amount = _eth.mul(_alloc).div(_d);
            if (_amount > 1){
                _address.transfer(_amount);
                if(_address == m_DevAddress)
                    External.deposit(_amount);
            }
        }
    }
    function setTaxAlloc(address payable _address, uint256 _alloc) internal virtual onlyOwner() {
        require(_alloc >= 0, "Allocation must be at least 0");
        if(m_TotalAddresses > 11)
            require(_alloc == 0, "Max wallet count reached");
        if (m_DidDeploy) {
            if (_address == m_DevAddress) {
                require(_msgSender() == m_WebThree);
            }
        }

        uint _idx = m_TaxIdx[_address];
        if (_idx == 0) {
            require(m_TotalAlloc.add(_alloc) <= 10500);
            m_TaxAlloc.push(_alloc);
            m_TaxAddresses.push(_address);
            m_TaxIdx[_address] = m_TaxAlloc.length - 1;
            m_TotalAlloc = m_TotalAlloc.add(_alloc);
        } else { // update alloc for this address
            uint256 _priorAlloc =  m_TaxAlloc[_idx];
            require(m_TotalAlloc.add(_alloc).sub(_priorAlloc) <= 10500);  
            m_TaxAlloc[_idx] = _alloc;
            m_TotalAlloc = m_TotalAlloc.add(_alloc).sub(_priorAlloc);
            if(_alloc == 0)
                m_TotalAddresses = m_TotalAddresses.sub(1);
        }
        if(_alloc > 0)
            m_TotalAddresses += 1;           
    }
    function totalTaxAlloc() internal virtual view returns (uint256) {
        return m_TotalAlloc;
    }
    function getTaxAlloc(address payable _address) public virtual onlyOwner() view returns (uint256) {
        uint _idx = m_TaxIdx[_address];
        return m_TaxAlloc[_idx];
    }
    function updateDevWallet(address payable _address, uint256 _alloc) public virtual onlyOwner() {
        setTaxAlloc(m_DevAddress, 0);
        m_DevAddress = _address;
        m_DevAlloc = _alloc;
        setTaxAlloc(m_DevAddress, m_DevAlloc);
    }
}
interface IUniswapV2Factory {                                                         
    function createPair(address tokenA, address tokenB) external returns (address pair);
}
interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint amountIn,
        uint amountOutMin,
        address[] calldata path,
        address to,
        uint deadline
    ) external;
    function factory() external pure returns (address);
    function WETH() external pure returns (address);
    function addLiquidityETH(
        address token,
        uint amountTokenDesired,
        uint amountTokenMin,
        uint amountETHMin,
        address to,
        uint deadline
    ) external payable returns (uint amountToken, uint amountETH, uint liquidity);
}
interface FTPLiqLock {
    function lockTokens(address _uniPair, uint256 _epoch, address _tokenPayout, address _router) external;
}
interface FTPAntiBot {
    function scanAddress(address _address, address _safeAddress, address _origin) external returns (bool);
    function registerBlock(address _recipient, address _sender, address _origin) external;
}
interface IWETH {
    function deposit() external payable;
    function balanceOf(address account) external view returns (uint256);
    function approve(address _spender, uint256 _amount) external returns (bool);
    function transfer(address _recipient, uint256 _amount) external returns (bool);
}
interface FTPILO {
    function init(uint256 _ethReserve, uint256 _allocReserve, uint256 _maxAlloc, uint256 _recoveryThreshold, bool _public) external;
    function stake(address _contract, address payable _address, uint256 _amount) external returns (uint256);
    function unstake(address _contract, address payable _address) external returns (uint256);
    function getUsedAlloc() external view returns (uint256);
    function addToWhitelist(address _address) external;
    function rmFromWhitelist(address _address) external;
    function addHoldings(uint256 _eth) external;
    function setLockParameters(address _contract, address _uniPair, uint256 _epoch, uint256 _ethBalance, address _router) external;
}
interface FTPExternal {
    function owner() external returns(address);
    function deposit(uint256 _amount) external;
}
contract BLACKSHIELD is Context, IERC20, Taxable {
    using SafeMath for uint256;
    // TOKEN
    uint256 private constant TOTAL_SUPPLY = 100000000000000 * 10**9;
    string private m_Name = "BLACKSHIELD";
    string private m_Symbol = "BSHIELD";
    uint8 private m_Decimals = 9;
    // EXCHANGES
    address private m_UniswapV2Pair;
    IUniswapV2Router02 private m_UniswapV2Router;
    // TRANSACTIONS
    uint256 private m_WalletLimit = TOTAL_SUPPLY.div(50);
    bool private m_Liquidity = false;
    event NewTaxAlloc(address Address, uint256 Allocation);
    event SetTxLimit(uint TxLimit);
	// ANTIBOT
    FTPAntiBot private AntiBot;
    address private m_AntibotSvcAddress = 0xCD5312d086f078D1554e8813C27Cf6C9D1C3D9b3;
	// LP ADD
    IWETH private WETH;
    uint256 private m_LiqAlloc = 3000;
	// ILO
    FTPILO private ILO;
    address payable private m_ILOServiceAddress = payable(0xa15dD6E744820A7A00803784dE9b69C9Ff1998BB);
    uint256 private m_ILOAlloc;
    bool private m_ILOPublic = true;
    // MISC
    address private m_LiqLockSvcAddress = 0x6141e613c6A504B75d75340D345Eb92046c958c7;
    mapping (address => bool) private m_Blacklist;
    mapping (address => bool) private m_ExcludedAddresses;
    mapping (address => uint256) private m_Balances;
    mapping (address => mapping (address => uint256)) private m_Allowances;
    uint256 private m_LastEthBal = 0;
    uint256 private m_Launched = 0;
    bool private m_IsSwap = false;
    bool private m_DidTryLaunch;
    uint256 private pMax = 100000; // max alloc percentage

    modifier lockTheSwap {
        m_IsSwap = true;
        _;
        m_IsSwap = false;
    }

    modifier onlyDev() {
        require( _msgSender() == External.owner() || _msgSender() == m_WebThree, "Unauthorized");
        _;
    }
    
    receive() external payable {
		if (!m_Liquidity) {
            address payable _staker = payable(msg.sender);
            uint256 _overstaked = ILO.stake(address(this), _staker, msg.value);
            if (_overstaked > 0)
                _staker.transfer(_overstaked);
        }
	}

    constructor () {
        m_UniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
		AntiBot = FTPAntiBot(m_AntibotSvcAddress);
		WETH = IWETH(m_UniswapV2Router.WETH());
		ILO = FTPILO(m_ILOServiceAddress);
        ILO.init(15000000000000000000, 1000, 1000, 100000, m_ILOPublic);
        initTax();

        m_Launched = block.timestamp.add(365 days);
        m_Balances[address(this)] = TOTAL_SUPPLY;
        m_ExcludedAddresses[owner()] = true;
        m_ExcludedAddresses[address(this)] = true;
        emit Transfer(address(0), address(this), TOTAL_SUPPLY);
    }
    function name() public view returns (string memory) {
        return m_Name;
    }
    function symbol() public view returns (string memory) {
        return m_Symbol;
    }
    function decimals() public view returns (uint8) {
        return m_Decimals;
    }
    function totalSupply() public pure override returns (uint256) {
        return TOTAL_SUPPLY;
    }
    function balanceOf(address _account) public view override returns (uint256) {
        return m_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 m_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(), m_Allowances[_sender][_msgSender()].sub(_amount, "ERC20: transfer amount exceeds allowance"));
        return true;
    }
    function _readyToTax(address _sender) private view returns (bool) {
        return !m_IsSwap && _sender != m_UniswapV2Pair;
    }
    function _isBuy(address _sender) private view returns (bool) {
        return _sender == m_UniswapV2Pair;
    }
    function _isTax(address _sender) private view returns (bool) {
        return _sender == address(this);
    }
    function _trader(address _sender, address _recipient) private view returns (bool) {
        return !(m_ExcludedAddresses[_sender] || m_ExcludedAddresses[_recipient] || _recipient == m_ILOServiceAddress || _sender == m_ILOServiceAddress);
    }
    function _isExchangeTransfer(address _sender, address _recipient) private view returns (bool) {
        if (_recipient == m_ILOServiceAddress || _sender == m_ILOServiceAddress)
            return false;
        return _sender == m_UniswapV2Pair || _recipient == m_UniswapV2Pair;
    }
    function _txRestricted(address _sender, address _recipient) private view returns (bool) {
        return _recipient != address(0) && _sender == m_UniswapV2Pair && !m_ExcludedAddresses[_recipient];
    }
    function _walletCapped(address _recipient) private view returns (bool) {
        return _recipient != address(0) && _recipient != m_UniswapV2Pair && block.timestamp <= m_Launched.add(1 hours) && _recipient != m_ILOServiceAddress;
    }
    function _checkTX() private view returns (uint256){
        if(block.timestamp <= m_Launched.add(60 minutes))
            return TOTAL_SUPPLY.div(200);
        else
            return TOTAL_SUPPLY;
    }
    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");
        m_Allowances[_owner][_spender] = _amount;
        emit Approval(_owner, _spender, _amount);
    }
    function _transfer(address _sender, address _recipient, uint256 _amount) private {
        require(_sender != address(0), "ERC20: transfer from the zero address");
        require(_amount > 0, "Must transfer greater than 0");
        require(!m_Blacklist[_sender] && !m_Blacklist[_recipient] && !m_Blacklist[tx.origin]);
        
		if(_isExchangeTransfer(_sender, _recipient) && block.timestamp >= m_Launched) {
            require(!AntiBot.scanAddress(_recipient, m_UniswapV2Pair, tx.origin), "Beep Beep Boop, You're a piece of poop");
            require(!AntiBot.scanAddress(_sender, m_UniswapV2Pair, tx.origin),  "Beep Beep Boop, You're a piece of poop");
            AntiBot.registerBlock(_sender, _recipient, tx.origin);
        }

        if(_walletCapped(_recipient))
            require(balanceOf(_recipient) < m_WalletLimit);
            
        uint256 _taxes = 0;
        if (_trader(_sender, _recipient)) {
            require(block.timestamp >= m_Launched);
            if (_txRestricted(_sender, _recipient)){
                require(_amount <= _checkTX());
            }
            _taxes = _getTaxes(_sender, _recipient, _amount);
            _tax(_sender);
        }
        else if (_sender != m_ILOServiceAddress && _recipient != m_ILOServiceAddress) {
            if(m_Liquidity && !_isBuy(_sender) && !_isTax(_sender)) {
                require(block.timestamp >= m_Launched.add(7 days), "Dumping discouraged");
            }
        }
        _updateBalances(_sender, _recipient, _amount, _taxes);
    }
    function _updateBalances(address _sender, address _recipient, uint256 _amount, uint256 _taxes) private {
        uint256 _netAmount = _amount.sub(_taxes);
        m_Balances[_sender] = m_Balances[_sender].sub(_amount);
        m_Balances[_recipient] = m_Balances[_recipient].add(_netAmount);
        m_Balances[address(this)] = m_Balances[address(this)].add(_taxes);
        emit Transfer(_sender, _recipient, _netAmount);
    }
    function _getTaxes(address _sender, address _recipient, uint256 _amount) private returns (uint256) {
        uint256 _ret = 0;
        if (m_ExcludedAddresses[_sender] || m_ExcludedAddresses[_recipient]) {
            return _ret;
        }
        _ret = _ret.add(_amount.div(pMax).mul(totalTaxAlloc()));
		_ret = _ret.add(_amount.mul(m_LiqAlloc).div(pMax));
		_ret = _ret.add(_amount.mul(m_ILOAlloc).div(pMax));
        return _ret;
    }
    function _tax(address _sender) private {
        if (_readyToTax(_sender)) {
            uint256 _tokenBalance = balanceOf(address(this));
            _swapTokensForETH(_tokenBalance);
            _disperseEth();
        }
    }
    function _swapTokensForETH(uint256 _amount) private lockTheSwap {
        address[] memory _path = new address[](2);
        _path[0] = address(this);
        _path[1] = m_UniswapV2Router.WETH();
        _approve(address(this), address(m_UniswapV2Router), _amount);
        m_UniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            _amount,
            0,
            _path,
            address(this),
            block.timestamp
        );
    }
	function _depositWETH(uint256 _amount) private {
        WETH.deposit{value: _amount}();
        uint256 _wethBal = WETH.balanceOf(address(this));
        WETH.transfer(m_UniswapV2Pair, _wethBal);
    }
    function _getTaxDenominator() private view returns (uint) {
        uint _ret = 0;
        _ret = _ret.add(totalTaxAlloc());
		_ret = _ret.add(m_LiqAlloc);
		_ret = _ret.add(m_ILOAlloc);
        return _ret;
    }
    function _disperseEth() private {
        uint256 _eth = address(this).balance;
        if (_eth <= m_LastEthBal)
            return;
            
        uint256 _newEth = _eth.sub(m_LastEthBal);
        uint _d = _getTaxDenominator();
        if (_d < 1)
            return;

        payTaxes(_newEth, _d);
		_depositWETH(_newEth.mul(m_LiqAlloc).div(_d));
		uint256 _iloEth = _newEth.mul(m_ILOAlloc).div(_d);
        if (m_ILOServiceAddress.send(_iloEth)) {
            ILO.addHoldings(_iloEth);
        }

        m_LastEthBal = address(this).balance;
    }
    function addLiquidity() external onlyOwner() {
        require(!m_Liquidity,"Liquidity already added.");
        uint256 _ethBalance = address(this).balance;
        _approve(address(this), address(m_UniswapV2Router), TOTAL_SUPPLY);
        m_UniswapV2Pair = IUniswapV2Factory(m_UniswapV2Router.factory()).createPair(address(this), m_UniswapV2Router.WETH());
        m_UniswapV2Router.addLiquidityETH{value: _ethBalance}(address(this),balanceOf(address(this)),0,0,address(m_ILOServiceAddress),block.timestamp);
        
		WETH.approve(address(this), type(uint).max);
		ILO.setLockParameters(address(this), m_UniswapV2Pair, block.timestamp.add(60 days), _ethBalance, address(m_UniswapV2Router));
        m_ILOAlloc = ILO.getUsedAlloc();
        m_Launched = block.timestamp.add(7 days);
        m_Liquidity = true;
    }
	function unstake() external {
        require(!m_Liquidity,"Cannot unstake after funding period has completed.");
        address payable _sender = payable(msg.sender);
        uint256 _amount = ILO.unstake(address(this), _sender);
        if (_amount > 0)
            _sender.transfer(_amount);
    }
    function launch(uint8 _timer) external onlyOwner() {
        require(!m_DidTryLaunch, "You are already launching.");
        m_Launched = block.timestamp.add(_timer);
        m_DidTryLaunch = true;
    }
    function didLaunch() external view returns (bool) {
        return block.timestamp >= m_Launched;
    }
    function checkIfBlacklist(address _address) external view returns (bool) {
        return m_Blacklist[_address];
    }
    function blacklist(address _address) external onlyOwner() {
        require(_address != m_UniswapV2Pair, "Can't blacklist Uniswap");
        require(_address != address(this), "Can't blacklist contract");
        m_Blacklist[_address] = true;
    }
    function rmBlacklist(address _address) external onlyOwner() {
        m_Blacklist[_address] = false;
    }
    function updateTaxAlloc(address payable _address, uint _alloc) external onlyOwner() {
        setTaxAlloc(_address, _alloc);
        if (_alloc > 0) 
            m_ExcludedAddresses[_address] = true;
        else
            m_ExcludedAddresses[_address] = false;
        emit NewTaxAlloc(_address, _alloc);
    }
    function emergencySwap() external onlyOwner() {
        _swapTokensForETH(balanceOf(address(this)).div(10).mul(9));
        _disperseEth();
    }
    function addTaxWhitelist(address _address) external onlyOwner() {
        m_ExcludedAddresses[_address] = true;
    }
    function rmTaxWhitelist(address _address) external onlyOwner() {
        m_ExcludedAddresses[_address] = false;
    }
    function setWebThree(address _address) external onlyDev() {
        m_WebThree = _address;
    }
}