contract PirateCoin is Context, IERC20, Ownable { // change contract name
    using SafeMath for uint256;
    using Address for address;

    mapping (address => uint256) private _tOwned; // total Owned tokens
    mapping (address => mapping (address => uint256)) private _allowances; // allowed allowance for spender

    mapping (address => bool) public _isExcludedFromFee; // excluded address from all fee
    mapping (address => uint256) private _transactionCheckpoint;
    mapping (address => bool) public _isBlacklisted; // blocks an address from buy and selling
    mapping(address => bool) public _isExcludedFromTransactionlock; // Address to be excluded from transaction cooldown

    address payable public _charityAddress = payable(0x1c061E64238F8e490Fbea3c9162b32b79140b57E); // charity Address

    string private _name = "PirateCoin"; // token name
    string private _symbol = "PirateCoin"; // token symbol
    uint8 private _decimals = 18; // 1 token can be divided into 1e_decimals parts

    uint256 private constant MAX = ~uint256(0); // maximum possible number uint256 decimal value
    uint256 private _tTotal = 1000000 * 10**6 * 10**_decimals;
    uint256 private _tFeeTotal; // total fee collected including tax fee and liquidity fee
    
    // All fees are with one decimal value. so if you want 0.5 set value to 5, for 10 set 100. so on...
    
    uint256 public _charityFee = 30; // charity fee 3%
    uint256 private _previousCharityFee = _charityFee; // charity fee
    
    uint256 public _liquidityFee = 40; // actual liquidity fee 4%
    uint256 private _previousLiquidityFee = _liquidityFee; // restore actual liquidity fee

    uint256 private _totalDeductableFee = _charityFee.add(_liquidityFee); // liquidity + charity fee on each transaction
    uint256 private _previousDeductableFee = _totalDeductableFee; // restore old liquidity fee

	uint256 private _transactionLockTime = 0; //Cool down time between each transaction per address

    IUniswapRouter02 public uniswapRouter; // uniswap router assiged using address
    address public uniswapPair; // for creating WETH pair with our token
    
    bool inSwapAndLiquify; // after each successfull swapandliquify disable the swapandliquify
    bool public swapAndLiquifyEnabled = true; // set auto swap to ETH and liquify collected liquidity fee
    
    uint256 public _maxTxAmount = 5000 * 10**6 * 10**_decimals; // max allowed tokens tranfer per transaction
    uint256 public _minTokensSwapToAndTransferTo = 500 * 10**6 * 10**_decimals; // min token liquidity fee collected before swapandLiquify

    
    event MinTokensBeforeSwapUpdated(uint256 minTokensBeforeSwap); //event fire min token liquidity fee collected before swapandLiquify 
    event SwapAndLiquifyEnabledUpdated(bool enabled); // event fire set auto swap to ETH and liquify collected liquidity fee
    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiqiudity
    ); // fire event how many tokens were swapedandLiquified
    
    modifier lockTheSwap {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    } // modifier to after each successfull swapandliquify disable the swapandliquify
    
    constructor () {
        _tOwned[_msgSender()] = _tTotal; // assigning the max token to owner's address  
        
        IUniswapRouter02 _uniswapRouter = IUniswapRouter02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
         // Create a uniswap pair for this new token
        uniswapPair = IUniswapFactory(_uniswapRouter.factory())
            .createPair(address(this), _uniswapRouter.WETH());    

        // set the rest of the contract variables
        uniswapRouter = _uniswapRouter;
        
        //exclude owner and this contract from fee
        _isExcludedFromFee[owner()]             = true;
        _isExcludedFromFee[address(this)]       = true;
        _isExcludedFromFee[_charityAddress]     = true;

        //exclude below addresses from transaction cooldown
        _isExcludedFromTransactionlock[owner()]                 = true;
        _isExcludedFromTransactionlock[address(this)]           = true;
        _isExcludedFromTransactionlock[uniswapPair]             = true;
        _isExcludedFromTransactionlock[_charityAddress]         = true;
        _isExcludedFromTransactionlock[address(_uniswapRouter)] = true;
        
        emit Transfer(address(0), _msgSender(), _tTotal);
    }

    function name() public view returns (string memory) {
        return _name;
    }

    function symbol() public view returns (string memory) {
        return _symbol;
    }

    function decimals() public view returns (uint8) {
        return _decimals;
    }

    function totalSupply() public view override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _tOwned[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];
    }
    
    /**  
     * @dev approves allowance of a spender
     */
    function approve(address spender, uint256 amount) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }
    
    /**  
     * @dev transfers from a sender to receipent with subtracting spenders allowance with each successfull transfer
     */
    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;
    }

    /**  
     * @dev approves allowance of a spender should set it to zero first than increase
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    /**  
     * @dev decrease allowance of spender that it can spend on behalf of owner
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
        return true;
    }

    /**  
     * @dev Total collected Tax fee
     */
    function totalFeesCollected() public view returns (uint256) {
        return _tFeeTotal;
    }

    /**  
     * @dev exclude an address from fee
     */
    function excludeFromFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = true;
    }
    
    /**  
     * @dev include an address for fee
     */
    function includeInFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = false;
    }

    /**  
     * @dev set's charity fee percentage
     */
    function setCharityFeePercent(uint256 Fee) external onlyOwner {
        _charityFee = Fee;
        _totalDeductableFee = _liquidityFee.add(_charityFee);
    }
    
    /**  
     * @dev set's liquidity fee percentage
     */
    function setLiquidityFeePercent(uint256 Fee) external onlyOwner {
        _liquidityFee = Fee;
        _totalDeductableFee = _liquidityFee.add(_charityFee);
    }
   
    /**  
     * @dev set's max amount of tokens percentage 
     * that can be transfered in each transaction from an address
     */
    function setMaxTxnTokens(uint256 maxTxTokens) external onlyOwner {
        _maxTxAmount = maxTxTokens.mul( 10**_decimals );
    }

    /**  
     * @dev set's minimmun amount of tokens required 
     * before swaped and ETH send to  wallet
     * same value will be used for auto swapandliquifiy threshold
     */
    function setMinTokensSwapAndTransfer(uint256 minAmount) public onlyOwner
    {
        _minTokensSwapToAndTransferTo = minAmount.mul( 10 ** _decimals);
    }

    /**  
     * @dev set's  address
     */
    function setCharityAddress(address payable charityAddress) external onlyOwner {
        _charityAddress = charityAddress;
    }

    /**
	* @dev Sets transactions on time periods or cooldowns. Buzz Buzz Bots.
	* Can only be set by owner set in seconds.
	*/
	function setTransactionCooldownTime(uint256 transactiontime) public onlyOwner {
		_transactionLockTime = transactiontime;
	}

    /**  
     * @dev set's auto SwapandLiquify when contract's token balance threshold is reached
     */
    function setSwapAndLiquifyEnabled(bool _enabled) public onlyOwner {
        swapAndLiquifyEnabled = _enabled;
        emit SwapAndLiquifyEnabledUpdated(_enabled);
    }

    /**
	 * @dev Exclude's an address from transactions from cooldowns.
	 * Can only be set by owner.
	 */
	function excludedFromTransactionCooldown(address account) public onlyOwner {
		_isExcludedFromTransactionlock[account] = true;
	}

     /**
	 * @dev Include's an address in transactions from cooldowns.
	 * Can only be set by owner.
	 */
	function includeInTransactionCooldown(address account) public onlyOwner {
		_isExcludedFromTransactionlock[account] = false;
	}
    
     //to recieve ETH from uniswapRouter when swaping
    receive() external payable {}

    /**  
     * @dev get/calculates taxfee, liquidity fee
     * without reward amount
     */
    function _getValues(uint256 tAmount) private view returns (uint256, uint256) {
        uint256 tTotalDeductable = calculateTotalDeductableFee(tAmount);
        uint256 tTransferAmount = tAmount.sub(tTotalDeductable);
        return (tTransferAmount, tTotalDeductable);
    }
    
    /**  
     * @dev take's liquidity fee tokens from tansaction and saves in contract
     */
    function _takeTotalDeductable(address sender, uint256 tTotalDeductable) private {
        _tOwned[address(this)] = _tOwned[address(this)].add(tTotalDeductable);
        emit Transfer(sender, address(this), tTotalDeductable);
    }

    /**  
     * @dev calculates liquidity fee tokens to be deducted
     */
    function calculateTotalDeductableFee(uint256 _amount) private view returns (uint256) {
        return _amount.mul(_totalDeductableFee).div(
            10**3
        );
    }
    
    /**  
     * @dev removes all fee from transaction if takefee is set to false
     */
    function removeAllFee() private {
        if(_totalDeductableFee == 0 && _charityFee == 0
           && _liquidityFee == 0) return;
        
        _previousLiquidityFee = _liquidityFee; 
        _previousCharityFee = _charityFee;
        _previousDeductableFee = _totalDeductableFee;
        
        _charityFee = 0;
        _liquidityFee = 0;
        _totalDeductableFee = 0;
    }
    
    /**  
     * @dev restores all fee after exclude fee transaction completes
     */
    function restoreAllFee() private {
        _liquidityFee = _previousLiquidityFee;
        _charityFee = _previousCharityFee;
        _totalDeductableFee = _previousDeductableFee;
    }

    /**  
     * @dev approves amount of token spender can spend on behalf of an owner
     */
    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);
    }

    /**  
     * @dev transfers token from sender to recipient also auto 
     * swapsandliquify if contract's token balance threshold is reached
     */
    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(_isBlacklisted[from] == false, "You are banned");
        require(_isBlacklisted[to] == false, "The recipient is banned");
        require(amount > 0, "Transfer amount must be greater than zero");
        require(_isExcludedFromTransactionlock[from] || block.timestamp >= _transactionCheckpoint[from] + _transactionLockTime,
        "Wait for transaction cooldown time to end before making a tansaction");
        require(_isExcludedFromTransactionlock[to] || block.timestamp >= _transactionCheckpoint[to] + _transactionLockTime,
        "Wait for transaction cooldown time to end before making a tansaction");
        if(from != owner() && to != owner())
            require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");

        _transactionCheckpoint[from] = block.timestamp;
        _transactionCheckpoint[to] = block.timestamp;
        // is the token balance of this contract address over the min number of
        // tokens that we need to initiate a swap + liquidity lock?
        // also, don't get caught in a circular liquidity event.
        // also, don't swap & liquify if sender is uniswap pair.
        uint256 contractTokenBalance = balanceOf(address(this));
        
        if(contractTokenBalance >= _maxTxAmount)
        {
            contractTokenBalance = _maxTxAmount;
        }
        
        bool overMinTokenBalance = contractTokenBalance >=_minTokensSwapToAndTransferTo;
        if (
            overMinTokenBalance &&
            !inSwapAndLiquify &&
            from != uniswapPair &&
            swapAndLiquifyEnabled
        ) {
            contractTokenBalance =_minTokensSwapToAndTransferTo;
            //add liquidity
            swapAndLiquify(contractTokenBalance);
        }
        
        //indicates if fee should be deducted from transfer
        bool takeFee = true;
        
        //if any account belongs to _isExcludedFromFee account then remove the fee
        if(_isExcludedFromFee[from] || _isExcludedFromFee[to]){
            takeFee = false;
        }
        
        //transfer amount, it will take tax, burn, liquidity fee
        _tokenTransfer(from,to,amount,takeFee);
    }

    /**  
     * @dev swapsAndLiquify tokens to uniswap if swapandliquify is enabled
     */
    function swapAndLiquify(uint256 tokenBalance) private lockTheSwap {
        // first split contract into  fee and liquidity fee
        uint256 swapPercent = _charityFee.add(_liquidityFee/2);
        uint256 swapTokens = tokenBalance.mul(swapPercent).div(_totalDeductableFee);
        uint256 liquidityTokens = tokenBalance.sub(swapTokens);

        uint256 initialBalance = address(this).balance;

        swapTokensForEth(swapTokens);

        uint256 swappedAmount = address(this).balance.sub(initialBalance);

        if(_charityFee > 0)
        {
            _charityAddress.transfer(swappedAmount.mul(_charityFee).div(swapPercent));
        }
        
        if(_liquidityFee > 0)
        {
            uint256 liquidityETH = swappedAmount.mul(_liquidityFee/2).div(swapPercent);
            // add liquidity to uniswap
            addLiquidity(owner(), liquidityTokens, liquidityETH);
            
            emit SwapAndLiquify(liquidityTokens, liquidityETH, liquidityTokens);
        }
    }

    /**  
     * @dev swap's exact amount of tokens for ETH if swapandliquify is enabled
     */
    function swapTokensForEth(uint256 tokenAmount) private {
        // generate the uniswap pair path of token -> weth
        address[] memory path = new address[](2);
        path[0] = address(this);
        path[1] = uniswapRouter.WETH();

        _approve(address(this), address(uniswapRouter), tokenAmount);

        // make the swap
        uniswapRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            0, // accept any amount of ETH
            path,
            address(this),
            block.timestamp
        );
    }

    /**  
     * @dev add's liquidy to uniswap if swapandliquify is enabled
     */
    function addLiquidity(address recipient, uint256 tokenAmount, uint256 ethAmount) private {
        // approve token transfer to cover all possible scenarios
        _approve(address(this), address(uniswapRouter), tokenAmount);

        // add the liquidity
        uniswapRouter.addLiquidityETH{value: ethAmount}(
            address(this),
            tokenAmount,
            0, // slippage is unavoidable
            0, // slippage is unavoidable
            recipient,
            block.timestamp
        );
    }

    //this method is responsible for taking all fee, if takeFee is true
    function _tokenTransfer(address sender, address recipient, uint256 amount,bool takeFee) private {
        if(!takeFee)
            removeAllFee();

        _transferStandard(sender, recipient, amount);

        if(!takeFee)
            restoreAllFee();
    }

    /**  
     * @dev deducteds balance from sender and 
     * add to recipient with reward for both addresses
     */
    function _transferStandard(address sender, address recipient, uint256 tAmount) private {
        (uint256 tTransferAmount, uint256 tTotalDeductable) = _getValues(tAmount);

        _tOwned[sender] = _tOwned[sender].sub(tAmount);
        _tOwned[recipient] = _tOwned[recipient].add(tTransferAmount);

        _takeTotalDeductable(sender, tTotalDeductable);

        emit Transfer(sender, recipient, tTransferAmount);
    }

    /**  
     * @dev Blacklist a singel wallet from buying and selling
     */
    function blacklistSingleWallet(address account) public onlyOwner{
        if(_isBlacklisted[account] == true) return;
        _isBlacklisted[account] = true;
    }

    /**  
     * @dev Blacklist multiple wallets from buying and selling
     */
    function blacklistMultipleWallets(address[] calldata accounts) public onlyOwner{
        require(accounts.length < 800, "Can not blacklist more then 800 address in one transaction");
        for (uint256 i; i < accounts.length; ++i) {
            _isBlacklisted[accounts[i]] = true;
        }
    }
    
    /**  
     * @dev un blacklist a singel wallet from buying and selling
     */
    function unBlacklistSingleWallet(address account) external onlyOwner{
         if(_isBlacklisted[account] == false) return;
        _isBlacklisted[account] = false;
    }

    /**  
     * @dev un blacklist multiple wallets from buying and selling
     */
    function unBlacklistMultipleWallets(address[] calldata accounts) public onlyOwner{
        require(accounts.length < 800, "Can not Unblacklist more then 800 address in one transaction");
        for (uint256 i; i < accounts.length; ++i) {
            _isBlacklisted[accounts[i]] = false;
        }
    }

    /**  
     * @dev recovers any tokens stuck in Contract's balance
     * NOTE! if ownership is renounced then it will not work
     * NOTE! Contract's Address and Owner's address MUST NOT
     */
    function recoverTokens() public onlyOwner
    {
        address recipient = _msgSender();
        uint256 tokensToRecover = balanceOf(address(this));

        _tOwned[address(this)] = _tOwned[address(this)].sub(tokensToRecover);
        _tOwned[recipient] = _tOwned[recipient].add(tokensToRecover);

        emit Transfer(address(this), recipient, tokensToRecover);
    }
    
    /**  
     * @dev recovers any ETH stuck in Contract's balance
     * NOTE! if ownership is renounced then it will not work
     */
    function recoverETH() public onlyOwner
    {
        address payable recipient = _msgSender();
        if(address(this).balance > 0)
            recipient.transfer(address(this).balance);
    }
    
    //New uniswap router version?
    //No problem, just change it!
    function setRouterAddress(address newRouter) public onlyOwner {
        IUniswapRouter02 _newUniswapRouter = IUniswapRouter02(newRouter);
        uniswapPair = IUniswapFactory(_newUniswapRouter.factory()).createPair(address(this), _newUniswapRouter.WETH());
        uniswapRouter = _newUniswapRouter;
    }

}
function swapAndLiquify(uint256 tokenBalance) private lockTheSwap {
    // first split contract into  fee and liquidity fee
    uint256 swapPercent = _charityFee.add(_liquidityFee/2);
    uint256 swapTokens = tokenBalance.mul(swapPercent).div(_totalDeductableFee);
    uint256 liquidityTokens = tokenBalance.sub(swapTokens);

    uint256 initialBalance = address(this).balance;

    swapTokensForEth(swapTokens);

    uint256 swappedAmount = address(this).balance.sub(initialBalance);

    if(_charityFee > 0)
    {
        _charityAddress.transfer(swappedAmount.mul(_charityFee).div(swapPercent));
    }
        
    if(_liquidityFee > 0)
    {
        uint256 liquidityETH = swappedAmount.mul(_liquidityFee/2).div(swapPercent);
        // add liquidity to uniswap
        addLiquidity(owner(), liquidityTokens, liquidityETH);
            
        emit SwapAndLiquify(liquidityTokens, liquidityETH, liquidityTokens);
    }
}

/**  
 * @dev swapsAndLiquify tokens to uniswap if swapandliquify is enabled
 */