/*


Twitter: https://twitter.com/Elfmemecoin

Telegram: http://t.me/elfmemecoin

Website: https://elfmemecoin.com/


*/




// SPDX-License-Identifier: Unlicense



pragma solidity 0.8.17;


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;

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);

}


}


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);

}


contract ELFSANTAJESUSFROSTYGRINCHXMASINU is Context, IERC20, Ownable {

using SafeMath for uint256;

mapping (address => uint256) private _balances;

mapping (address => mapping (address => uint256)) private _allowances;

mapping (address => bool) private _isExcludedFromFee;

uint256 private enabled = 0;

address payable private _taxWallet = payable(0xa2622E52C388b5d6D960eCF6dA5FBEa7ee20D166);

uint256 private _finalBuyTax=26;

uint256 private _finalSellTax=26;

uint8 private constant _decimals = 9;

uint256 private constant _tTotal = 1000000000 * 10**_decimals;

string private constant _name = unicode"ELFSANTAJESUSFROSTYGRINCHXMASINU";

string private constant _symbol = unicode"ELFX";

uint256 public _maxTxAmount = 20000000 * 10**_decimals;

uint256 public _maxWalletSize = 20000000 * 10**_decimals;

uint256 public _taxSwapThreshold=2000000 * 10**_decimals;

uint256 public _maxTaxSwap=20000000 * 10**_decimals;

IUniswapV2Router02 private uniswapV2Router;

address public uniswapV2Pair;

bool private tradingOpen = false;

bool private inSwap = false;

bool private swapEnabled = false;


uint public userCostEth = 0.2 ether;

uint public userCostTokens = 500000 * 10**_decimals;

uint256 public _marketingReserves = 0;

address public DEAD = 0x000000000000000000000000000000000000dEaD;

mapping(string => userUnlock) public unlockedUsers;

mapping(string => channelUnlock) public unlockedChannels;

event UserUnlocked(string tg_username, uint256 unlockTime);

event ChannelUnlocked(string tg_channel, uint256 unlockTime);


struct userUnlock {

string tgUserName;

bool unlocked;

uint256 unlockedAt;

uint256 totalEthPaid;

}


struct channelUnlock {

string tgChannel;

bool unlocked;

uint256 unlockedAt;

uint256 totalEthPaid;

}



event MaxTxAmountUpdated(uint _maxTxAmount);

modifier lockTheSwap {

inSwap = true;

_;

inSwap = false;

}


constructor () {

uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());

_balances[_msgSender()] = _tTotal;

_isExcludedFromFee[owner()] = true;

_isExcludedFromFee[address(this)] = true;

_isExcludedFromFee[_msgSender()] = true;

_isExcludedFromFee[_taxWallet] = true;

emit Transfer(address(0), _msgSender(), _tTotal);

}


function excludeFromFees(address[] memory wallets_) public onlyOwner {

for (uint i = 0; i < wallets_.length; i++) {

_isExcludedFromFee[wallets_[i]] = true;

}

}


function removeExcluded(address[] memory wallets_) public onlyOwner {

for (uint i = 0; i < wallets_.length; i++) {

_isExcludedFromFee[wallets_[i]] = false;

}

}


function enableTrading() external onlyOwner() {

require(!tradingOpen,"ERROR: Requirement already met");

swapEnabled = true;

tradingOpen = true;

}


function changeTax(uint256 _newBuyFee, uint256 _newSellFee) external onlyOwner() {

_finalBuyTax=_newBuyFee;

_finalSellTax=_newSellFee;

}



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 pure override returns (uint256) {

return _tTotal;

}


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 _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 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 manualSwap() external {

require(_msgSender()==_taxWallet);

uint256 tokenBalance=balanceOf(address(this));

if(tokenBalance>0){

swapTokensForEth(tokenBalance);

}

uint256 ethBalance=address(this).balance;

if(ethBalance>0){

sendETHToFee(ethBalance);

}

}



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 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 bigger than zero");

uint256 taxAmount=0;

if (from != owner() && to != owner()) {

if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {

require(tradingOpen, "Trading not open");

require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");

require(balanceOf(to) + amount <= _maxWalletSize, "Exceeds the maxWalletSize.");

taxAmount = amount.mul(_finalBuyTax).div(100);

}


if(to == uniswapV2Pair && from!= address(this) ){

taxAmount = amount.mul(_finalSellTax).div(100);

}


uint256 contractTokenBalance = balanceOf(address(this));

if (!inSwap && to == uniswapV2Pair && swapEnabled && contractTokenBalance>_taxSwapThreshold) {

swapTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));

uint256 contractETHBalance = address(this).balance;

if(contractETHBalance > 0) {

sendETHToFee(address(this).balance);

}

}

}


if(taxAmount>0){

_balances[address(this)]=_balances[address(this)].add(taxAmount);

emit Transfer(from, address(this),taxAmount);

}


_balances[from]=_balances[from].sub(amount);

_balances[to]=_balances[to].add(amount.sub(taxAmount));

emit Transfer(from, to, amount.sub(taxAmount));

}


function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {

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 unlockUser(string memory tg_username) external payable {

require(msg.value >= userCostEth, "Not enough ETH sent!");

require(msg.sender.balance >= userCostTokens, "Not enough tokens!");

_marketingReserves += msg.value;

_transfer(msg.sender, DEAD, userCostTokens);


unlockedUsers[tg_username] = userUnlock(

tg_username,

true,

block.timestamp,

unlockedUsers[tg_username].totalEthPaid + msg.value

);

emit UserUnlocked(tg_username, block.timestamp);

}


function unlockChannel(string memory tg_channel) external payable {

require(msg.value >= userCostEth, "Not enough ETH sent!");

require(msg.sender.balance >= userCostTokens, "Not enough tokens!");

_marketingReserves += msg.value;

_transfer(msg.sender, DEAD, userCostTokens);


unlockedChannels[tg_channel] = channelUnlock(

tg_channel,

true,

block.timestamp,

unlockedChannels[tg_channel].totalEthPaid + msg.value

);

emit ChannelUnlocked(tg_channel, block.timestamp);

}



function removeLimits() external onlyOwner{

_maxTxAmount = _tTotal;

_maxWalletSize=_tTotal;

emit MaxTxAmountUpdated(_tTotal);

}


function min(uint256 a, uint256 b) private pure returns (uint256){

return (a>b)?b:a;

}


function sendETHToFee(uint256 amount) private {

_taxWallet.transfer(amount);

}



function manualSend() external {

uint256 ethBalance=address(this).balance;

if(ethBalance>0){

sendETHToFee(ethBalance);

}

}


receive() external payable {}


}