// SPDX-License-Identifier: Unlicensed

pragma solidity ^0.8.4;

abstract contract Context {
function _msgSender() internal view virtual returns (address payable) {
return payable(msg.sender);
}

function _msgData() internal view virtual returns (bytes memory) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}


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;
// assert(a == b * c a % b); // There is no case in which this doesn't hold

return c;
}

function mod(uint256 a, uint256 b) internal pure returns (uint256) {
return mod(a, b, "SafeMath: modulo by zero");
}

function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
require(b != 0, errorMessage);
return a % b;
}
}

library Address {

function isContract(address account) internal view returns (bool) {
// According to EIP-1052, 0x0 is the value returned for not-yet created accounts
// and 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470 is returned
// for accounts without code, i.e. `keccak256('')`
bytes32 codehash;
bytes32 accountHash = 0xc5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470;
// solhint-disable-next-line no-inline-assembly
assembly { codehash := extcodehash(account) }
return (codehash != accountHash && codehash != 0x0);
}

function sendValue(address payable recipient, uint256 amount) internal {
require(address(this).balance >= amount, "Address: insufficient balance");

// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(bool success, ) = recipient.call{ value: amount }("");
require(success, "Address: unable to send value, recipient may have reverted");
}


function functionCall(address target, bytes memory data) internal returns (bytes memory) {
return functionCall(target, data, "Address: low-level call failed");
}

function functionCall(address target, bytes memory data, string memory errorMessage) internal returns (bytes memory) {
return _functionCallWithValue(target, data, 0, errorMessage);
}

function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
}

function functionCallWithValue(address target, bytes memory data, uint256 value, string memory errorMessage) internal returns (bytes memory) {
require(address(this).balance >= value, "Address: insufficient balance for call");
return _functionCallWithValue(target, data, value, errorMessage);
}

function _functionCallWithValue(address target, bytes memory data, uint256 weiValue, string memory errorMessage) private returns (bytes memory) {
require(isContract(target), "Address: call to non-contract");

(bool success, bytes memory returndata) = target.call{ value: weiValue }(data);
if (success) {
return returndata;
} else {

if (returndata.length > 0) {
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}

contract Ownable is Context {
address private _owner;
address private _previousOwner;
uint256 private _lockTime;

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);
}

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

// pragma solidity >=0.5.0;

interface IUniswapV2Factory {
event PairCreated(address indexed token0, address indexed token1, address pair, uint);

function feeTo() external view returns (address);
function feeToSetter() external view returns (address);

function getPair(address tokenA, address tokenB) external view returns (address pair);
function allPairs(uint) external view returns (address pair);
function allPairsLength() external view returns (uint);

function createPair(address tokenA, address tokenB) external returns (address pair);

function setFeeTo(address) external;
function setFeeToSetter(address) external;
}


// pragma solidity >=0.5.0;

interface IUniswapV2Pair {
event Approval(address indexed owner, address indexed spender, uint value);
event Transfer(address indexed from, address indexed to, uint value);

function name() external pure returns (string memory);
function symbol() external pure returns (string memory);
function decimals() external pure returns (uint8);
function totalSupply() external view returns (uint);
function balanceOf(address owner) external view returns (uint);
function allowance(address owner, address spender) external view returns (uint);

function approve(address spender, uint value) external returns (bool);
function transfer(address to, uint value) external returns (bool);
function transferFrom(address from, address to, uint value) external returns (bool);

function DOMAIN_SEPARATOR() external view returns (bytes32);
function PERMIT_TYPEHASH() external pure returns (bytes32);
function nonces(address owner) external view returns (uint);

function permit(address owner, address spender, uint value, uint deadline, uint8 v, bytes32 r, bytes32 s) external;

event Burn(address indexed sender, uint amount0, uint amount1, address indexed to);
event Swap(
address indexed sender,
uint amount0In,
uint amount1In,
uint amount0Out,
uint amount1Out,
address indexed to
);
event Sync(uint112 reserve0, uint112 reserve1);

function MINIMUM_LIQUIDITY() external pure returns (uint);
function factory() external view returns (address);
function token0() external view returns (address);
function token1() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function price0CumulativeLast() external view returns (uint);
function price1CumulativeLast() external view returns (uint);
function kLast() external view returns (uint);

function burn(address to) external returns (uint amount0, uint amount1);
function swap(uint amount0Out, uint amount1Out, address to, bytes calldata data) external;
function skim(address to) external;
function sync() external;

function initialize(address, address) external;
}

// pragma solidity >=0.6.2;

interface IUniswapV2Router01 {
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 removeLiquidity(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline
) external returns (uint amountA, uint amountB);
function removeLiquidityETH(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountToken, uint amountETH);
function removeLiquidityWithPermit(
address tokenA,
address tokenB,
uint liquidity,
uint amountAMin,
uint amountBMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountA, uint amountB);
function removeLiquidityETHWithPermit(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountToken, uint amountETH);
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapTokensForExactTokens(
uint amountOut,
uint amountInMax,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);
function swapTokensForExactETH(uint amountOut, uint amountInMax, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
external
returns (uint[] memory amounts);
function swapETHForExactTokens(uint amountOut, address[] calldata path, address to, uint deadline)
external
payable
returns (uint[] memory amounts);

function quote(uint amountA, uint reserveA, uint reserveB) external pure returns (uint amountB);
function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
function getAmountIn(uint amountOut, uint reserveIn, uint reserveOut) external pure returns (uint amountIn);
function getAmountsOut(uint amountIn, address[] calldata path) external view returns (uint[] memory amounts);
function getAmountsIn(uint amountOut, address[] calldata path) external view returns (uint[] memory amounts);
}



// pragma solidity >=0.6.2;

interface IUniswapV2Router02 is IUniswapV2Router01 {
function removeLiquidityETHSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline
) external returns (uint amountETH);
function removeLiquidityETHWithPermitSupportingFeeOnTransferTokens(
address token,
uint liquidity,
uint amountTokenMin,
uint amountETHMin,
address to,
uint deadline,
bool approveMax, uint8 v, bytes32 r, bytes32 s
) external returns (uint amountETH);

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 Cupido is Context, IERC20, Ownable {
using SafeMath for uint256;
using Address for address;

event TokenBurn(address indexed from, uint256 value);
event SetLiquidityFee(uint256 amount);
event SetMarketingFee(uint256 amount);
event SetBurnFee(uint256 amount);

string private _name = "Cupido Token";
string private _symbol = "CUPIDO";
uint8 private _decimals = 18;
uint256 private _totalSupply = 1000000 * 1**9 * 10**_decimals;

address payable public marketingAddress = payable(0x1A4F13Cfcd04DD23b79F4a341532027dc7edb161);
address public marketingWalletToken = 0xe9e7CEA3DedcA5984780Bafc599bD69ADd087D56;
address public constant deadAddress = 0x000000000000000000000000000000000000dEaD;

mapping (address => uint256) private _balances;
mapping (address => mapping (address => uint256)) private _allowances;
mapping (address => bool) private _isExcludedFromFees;
mapping (address => bool) private _isExcludedFromMaxBalance;

uint256 private constant _maxFees = 10;
uint256 private _totalFees;
uint256 private _totalFeesContract;
uint256 private _burnFees;
uint256 private _liquidityFees;
uint256 private _marketingFees;

uint256 private _maxBalanceWallet;

IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;

uint256 private _liquidityThreshhold;
bool inSwapAndLiquify;

modifier lockTheSwap {
inSwapAndLiquify = true;
_;
inSwapAndLiquify = false;
}

constructor () {
IUniswapV2Router02 _uniswapV2Router = IUniswapV2Router02(0x10ED43C718714eb63d5aA57B78B54704E256024E);
uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
.createPair(address(this), _uniswapV2Router.WETH());

uniswapV2Router = _uniswapV2Router;

_isExcludedFromFees[owner()] = true;
_isExcludedFromFees[address(this)] = true;

_isExcludedFromMaxBalance[owner()] = true;
_isExcludedFromMaxBalance[address(this)] = true;
_isExcludedFromMaxBalance[uniswapV2Pair] = true;

_liquidityFees = 2;
_marketingFees = 8;
_burnFees = 0;
_totalFees = _liquidityFees.add(_marketingFees).add(_burnFees);
_totalFeesContract = _liquidityFees.add(_marketingFees);

_liquidityThreshhold = 10000 * 1**9 * 10**_decimals;
_maxBalanceWallet = 30000 * 1**9 * 10**_decimals;

_balances[_msgSender()] = _totalSupply;
emit Transfer(address(0), _msgSender(), _totalSupply);
}

receive() external payable {}

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 _totalSupply;
}

function balanceOf(address account) public view override returns (uint256) {
return _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 _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 increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
return true;
}

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;
}

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 setMarketingAddress(address payable newMarketingAddress) external onlyOwner() {
marketingAddress = newMarketingAddress;
}

function setLiquidityFeePercent(uint256 newLiquidityFee) external onlyOwner() {
require(!inSwapAndLiquify, "inSwapAndLiquify");
require(newLiquidityFee.add(_burnFees).add(_marketingFees) <= _maxFees, "Fees are too high.");
_liquidityFees = newLiquidityFee;
_totalFees = _liquidityFees.add(_marketingFees).add(_burnFees);
_totalFeesContract = _liquidityFees.add(_marketingFees);
emit SetLiquidityFee(_liquidityFees);
}

function setMarketingFeePercent(uint256 newMarketingFee) external onlyOwner() {
require(!inSwapAndLiquify, "inSwapAndLiquify");
require(_liquidityFees.add(_burnFees).add(newMarketingFee) <= _maxFees, "Fees are too high.");
_marketingFees = newMarketingFee;
_totalFees = _liquidityFees.add(_marketingFees).add(_burnFees);
_totalFeesContract = _liquidityFees.add(_marketingFees);
emit SetMarketingFee(_marketingFees);
}

function setBurnFeePercent(uint256 newBurnFee) external onlyOwner() {
require(_liquidityFees.add(newBurnFee).add(_marketingFees) <= _maxFees, "Fees are too high.");
_burnFees = newBurnFee;
_totalFees = _liquidityFees.add(_marketingFees).add(_burnFees);
emit SetBurnFee(_burnFees);
}

function setLiquifyThreshhold(uint256 newLiquifyThreshhold) external onlyOwner() {
_liquidityThreshhold = newLiquifyThreshhold;
}

function setMarketingWalletToken(address _marketingWalletToken) external onlyOwner(){
marketingWalletToken = _marketingWalletToken;
}

function setMaxBalance(uint256 newMaxBalance) external onlyOwner(){

require(newMaxBalance >= _totalSupply.mul(5).div(1000));
_maxBalanceWallet = newMaxBalance;
}

function isExcludedFromFees(address account) public view returns(bool) {
return _isExcludedFromFees[account];
}

function excludeFromFees(address account) public onlyOwner {
_isExcludedFromFees[account] = true;
}

function includeInFees(address account) public onlyOwner {
_isExcludedFromFees[account] = false;
}

function isExcludedFromMaxBalance(address account) public view returns(bool) {
return _isExcludedFromMaxBalance[account];
}

function excludeFromMaxBalance(address account) public onlyOwner {
_isExcludedFromMaxBalance[account] = true;
}

function includeInMaxBalance(address account) public onlyOwner {
_isExcludedFromMaxBalance[account] = false;
}

function totalFees() public view returns (uint256) {
return _totalFees;
}

function liquidityFee() public view returns (uint256) {
return _liquidityFees;
}

function marketingFee() public view returns (uint256) {
return _marketingFees;
}

function burnFee() public view returns (uint256) {
return _burnFees;
}

function maxFees() public pure returns (uint256) {
return _maxFees;
}

function liquifyThreshhold() public view returns(uint256){
return _liquidityThreshhold;
}

function maxBalance() public view returns (uint256) {
return _maxBalanceWallet;
}


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");


if(
from != owner() && // Not from Owner
to != owner() && // Not to Owner
!_isExcludedFromMaxBalance[to] // is excludedFromMaxBalance
){
require(
balanceOf(to).add(amount) <= _maxBalanceWallet,
"Max Balance is reached."
);
}

// Swap Fees
if(
to == uniswapV2Pair && // Sell
!inSwapAndLiquify && // Swap is not locked
balanceOf(address(this)) >= _liquidityThreshhold && // liquifyThreshhold is reached
_totalFeesContract > 0 && // LiquidityFee MarketingFee > 0
from != owner() && // Not from Owner
to != owner() // Not to Owner
) {
collectFees();
}

// Take Fees
if(
!(_isExcludedFromFees[from] || _isExcludedFromFees[to])
&& _totalFees > 0
) {

uint256 feesToContract = amount.mul( _totalFeesContract).div(100);
uint256 toBurnAmount = amount.mul(_burnFees).div(100);

amount = amount.sub(feesToContract.add(toBurnAmount));

transferToken(from, address(this), feesToContract);
transferToken(from, deadAddress, toBurnAmount);
emit TokenBurn(from, toBurnAmount);
}

transferToken(from, to, amount);
}

function collectFees() private lockTheSwap {

uint256 liquidityTokensToSell = balanceOf(address(this)).mul(_liquidityFees).div( _totalFeesContract);
uint256 marketingTokensToSell = balanceOf(address(this)).mul(_marketingFees).div( _totalFeesContract);

// Get collected Liquidity Fees
swapAndLiquify(liquidityTokensToSell);

// Get collected Marketing Fees
swapAndSendToFee(marketingTokensToSell);
}

function swapAndLiquify(uint256 tokens) private {

uint256 half = tokens.div(2);
uint256 otherHalf = tokens.sub(half);

// current ETH balance
uint256 initialBalance = address(this).balance;

swapTokensForEth(half);

// how much ETH did we just swap into?
uint256 newBalance = address(this).balance.sub(initialBalance);

addLiquidity(otherHalf, newBalance);
}

function swapAndSendToFee(uint256 tokens) private {

swapTokensForMarketingToken(tokens);

// Transfer sold Token to marketingWallet
IERC20(marketingWalletToken).transfer(marketingAddress, IERC20(marketingWalletToken).balanceOf(address(this)));
}

function swapTokensForEth(uint256 tokenAmount) private {

address[] memory path = new address[](2);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();

_approve(address(this), address(uniswapV2Router), tokenAmount);

uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}

function swapTokensForMarketingToken(uint256 tokenAmount) private {

address[] memory path = new address[](3);
path[0] = address(this);
path[1] = uniswapV2Router.WETH();
path[2] = marketingWalletToken;

_approve(address(this), address(uniswapV2Router), tokenAmount);

uniswapV2Router.swapExactTokensForTokensSupportingFeeOnTransferTokens(
tokenAmount,
0,
path,
address(this),
block.timestamp
);
}

function addLiquidity(uint256 tokenAmount, uint256 ethAmount) private {

_approve(address(this), address(uniswapV2Router), tokenAmount);

uniswapV2Router.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0,
0,
address(0),
block.timestamp
);
}

function transferToken(address sender, address recipient, uint256 amount) private {
require(sender != address(0), "ERC20: transfer from the zero address");
require(recipient != address(0), "ERC20: transfer to the zero address");

_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
_balances[recipient] = _balances[recipient].add(amount);
emit Transfer(sender, recipient, amount);
}
}