/**
APU APUSTAJA
WEBSITE: https://apuapu.app/
TWITTER: https://x.com/apuapustaja_eth
TG: https://t.me/apuentry
*/
// SPDX-License-Identifier:MIT
pragma solidity ^0.8.18;
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
);
}
// Dex Factory contract interface
interface IDexFactory {
function createPair(
address tokenA,
address tokenB
) external returns (address pair);
}
// Dex Router contract interface
interface IDexRouter {
function factory() external pure returns (address);
function WETH() external pure returns (address);
function addLiquidityETH(
address token,
uint256 amountTokenDesired,
uint256 amountTokenMin,
uint256 amountETHMin,
address to,
uint256 deadline
)
external
payable
returns (uint256 amountToken, uint256 amountETH, uint256 liquidity);
function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint256 amountIn,
uint256 amountOutMin,
address[] calldata path,
address to,
uint256 deadline
) external;
}
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;
}
}
contract Ownable is Context {
address private _owner;
event OwnershipTransferred(
address indexed previousOwner,
address indexed newOwner
);
constructor() {
_owner = _msgSender();
emit OwnershipTransferred(address(0), _owner);
}
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 = payable(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;
}
}
contract Apu is Context, IERC20, Ownable {
string private _name = "APU";
string private _symbol = "APU";
uint8 private _decimals = 18;
uint256 private _totalSupply = 420_000_000_000 * 1e18;
mapping(address => uint256) private _balances;
mapping(address => mapping(address => uint256)) private _allowances;
mapping(address => bool) public isExcludedFromFee;
mapping(address => bool) public isExcludedFromMaxTxn;
mapping(address => bool) public isExcludedFromMaxHolding;
uint256 public minTokenToSwap = (_totalSupply * 5) / (10000); // this amount will trigger swap and distribute
uint256 public maxHoldLimit = (_totalSupply * 2) / (100); // this is the max wallet holding limit
uint256 public maxTxnLimit = (_totalSupply * 2) / (100); // this is the max transaction limit
uint256 public percentDivider = 100;
uint256 public launchedAt;
bool public distributeAndLiquifyStatus; // should be true to turn on to liquidate the pool
bool public feesStatus; // enable by default
bool public trading; // once enable can't be disable afterwards
IDexRouter public dexRouter; // router declaration
address public dexPair; // pair address declaration
address public marketingWallet; // marketing address declaration
address private constant DEAD = address(0xdead);
address private constant ZERO = address(0);
uint256 public marketingFeeOnBuying = 15;
uint256 public marketingFeeOnSelling = 50;
event SwapAndLiquify(
uint256 tokensSwapped,
uint256 ethReceived,
uint256 tokensIntoLiqudity
);
constructor() {
_balances[owner()] = _totalSupply;
marketingWallet = address(0xD73f425A771D994FF5D5137E313318A9BdD82c32);
dexRouter = IDexRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
isExcludedFromFee[address(dexRouter)] = true;
isExcludedFromMaxTxn[address(dexRouter)] = true;
isExcludedFromMaxHolding[address(dexRouter)] = true;
dexPair = IDexFactory(dexRouter.factory()).createPair(
address(this),
dexRouter.WETH()
);
isExcludedFromMaxHolding[dexPair] = true;
//exclude owner and this contract from fee
isExcludedFromFee[owner()] = true;
isExcludedFromFee[address(this)] = true;
//exclude owner and this contract from max Txn
isExcludedFromMaxTxn[owner()] = true;
isExcludedFromMaxTxn[address(this)] = true;
//exclude owner and this contract from max hold limit
isExcludedFromMaxHolding[owner()] = true;
isExcludedFromMaxHolding[address(this)] = true;
isExcludedFromMaxHolding[marketingWallet] = true;
emit Transfer(address(0), owner(), _totalSupply);
}
//to receive ETH from dexRouter when swapping
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()] - amount
);
return true;
}
function increaseAllowance(
address spender,
uint256 addedValue
) public virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] + (addedValue)
);
return true;
}
function decreaseAllowance(
address spender,
uint256 subtractedValue
) public virtual returns (bool) {
_approve(
_msgSender(),
spender,
_allowances[_msgSender()][spender] - subtractedValue
);
return true;
}
function includeOrExcludeFromFee(
address account,
bool value
) external onlyOwner {
isExcludedFromFee[account] = value;
}
function includeOrExcludeFromMaxTxn(
address account,
bool value
) external onlyOwner {
isExcludedFromMaxTxn[account] = value;
}
function includeOrExcludeFromMaxHolding(
address account,
bool value
) external onlyOwner {
isExcludedFromMaxHolding[account] = value;
}
function setMinTokenToSwap(uint256 _amount) external onlyOwner {
minTokenToSwap = _amount * 1e18;
}
function setMaxHoldLimit(uint256 _amount) external onlyOwner {
maxHoldLimit = _amount * 1e18;
}
function setMaxTxnLimit(uint256 _amount) external onlyOwner {
maxTxnLimit = _amount * 1e18;
}
function setBuyFeePercent(uint256 _marketingFee) external onlyOwner {
marketingFeeOnBuying = _marketingFee;
}
function setSellFeePercent(uint256 _marketingFee) external onlyOwner {
marketingFeeOnSelling = _marketingFee;
}
function setDistributionStatus(bool _value) public onlyOwner {
distributeAndLiquifyStatus = _value;
}
function enableOrDisableFees(bool _value) external onlyOwner {
feesStatus = _value;
}
function updateAddresses(address _marketingWallet) external onlyOwner {
marketingWallet = _marketingWallet;
}
function enableTrading() external onlyOwner {
require(!trading, ": already enabled");
trading = true;
feesStatus = true;
distributeAndLiquifyStatus = true;
launchedAt = block.timestamp;
}
function removeStuckEth(address _receiver) public onlyOwner {
payable(_receiver).transfer(address(this).balance);
}
function totalBuyFeePerTx(uint256 amount) public view returns (uint256) {
uint256 fee = (amount * marketingFeeOnBuying) / (percentDivider);
return fee;
}
function totalSellFeePerTx(uint256 amount) public view returns (uint256) {
uint256 fee = (amount * marketingFeeOnSelling) / (percentDivider);
return fee;
}
function _approve(address owner, address spender, uint256 amount) private {
require(owner != address(0), " approve from the zero address");
require(spender != address(0), "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), "transfer from the zero address");
require(to != address(0), "transfer to the zero address");
require(amount > 0, "Amount must be greater than zero");
if (!isExcludedFromMaxTxn[from] && !isExcludedFromMaxTxn[to]) {
require(amount <= maxTxnLimit, " max txn limit exceeds");
// trading disable till launch
if (!trading) {
require(
dexPair != from && dexPair != to,
": trading is disable"
);
}
}
if (!isExcludedFromMaxHolding[to]) {
require(
(balanceOf(to) + amount) <= maxHoldLimit,
": max hold limit exceeds"
);
}
// swap and liquify
distributeAndLiquify(from, to);
//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] || !feesStatus) {
takeFee = false;
}
//transfer amount, it will take tax, burn, liquidity fee
_tokenTransfer(from, to, amount, takeFee);
}
//this method is responsible for taking all fees, if takeFee is true
function _tokenTransfer(
address sender,
address recipient,
uint256 amount,
bool takeFee
) private {
if (dexPair == sender && takeFee) {
uint256 allFee;
uint256 tTransferAmount;
allFee = totalBuyFeePerTx(amount);
tTransferAmount = amount - allFee;
_balances[sender] = _balances[sender] - amount;
_balances[recipient] = _balances[recipient] + tTransferAmount;
emit Transfer(sender, recipient, tTransferAmount);
takeTokenFee(sender, allFee);
} else if (dexPair == recipient && takeFee) {
uint256 allFee = totalSellFeePerTx(amount);
uint256 tTransferAmount = amount - allFee;
_balances[sender] = _balances[sender] - amount;
_balances[recipient] = _balances[recipient] + tTransferAmount;
emit Transfer(sender, recipient, tTransferAmount);
takeTokenFee(sender, allFee);
} else {
_balances[sender] = _balances[sender] - amount;
_balances[recipient] = _balances[recipient] + (amount);
emit Transfer(sender, recipient, amount);
}
}
function takeTokenFee(address sender, uint256 amount) private {
_balances[address(this)] = _balances[address(this)] + (amount);
emit Transfer(sender, address(this), amount);
}
// to withdarw ETH from contract
function withdrawETH(uint256 _amount) external onlyOwner {
require(address(this).balance >= _amount, "Invalid Amount");
payable(msg.sender).transfer(_amount);
}
// to withdraw ERC20 tokens from contract
function withdrawToken(IERC20 _token, uint256 _amount) external onlyOwner {
require(_token.balanceOf(address(this)) >= _amount, "Invalid Amount");
_token.transfer(msg.sender, _amount);
}
function distributeAndLiquify(address from, address to) private {
uint256 contractTokenBalance = balanceOf(address(this));
bool shouldSell = contractTokenBalance >= minTokenToSwap;
if (
shouldSell &&
from != dexPair &&
distributeAndLiquifyStatus &&
!(from == address(this) && to == dexPair) // swap 1 time
) {
// approve contract
_approve(address(this), address(dexRouter), minTokenToSwap);
// now is to lock into liquidty pool
Utils.swapTokensForEth(address(dexRouter), minTokenToSwap);
uint256 ethForMarketing = address(this).balance;
// sending Eth to Marketing wallet
if (ethForMarketing > 0)
payable(marketingWallet).transfer(ethForMarketing);
}
}
}
// Library for swapping on Dex
library Utils {
function swapTokensForEth(
address routerAddress,
uint256 tokenAmount
) internal {
IDexRouter dexRouter = IDexRouter(routerAddress);
// generate the Dex pair path of token -> weth
address[] memory path = new address[](2);
path[0] = address(this);
path[1] = dexRouter.WETH();
// make the swap
dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
tokenAmount,
0, // accept any amount of ETH
path,
address(this),
block.timestamp + 300
);
}
function addLiquidity(
address routerAddress,
address owner,
uint256 tokenAmount,
uint256 ethAmount
) internal {
IDexRouter dexRouter = IDexRouter(routerAddress);
// add the liquidity
dexRouter.addLiquidityETH{value: ethAmount}(
address(this),
tokenAmount,
0, // slippage is unavoidable
0, // slippage is unavoidable
owner,
block.timestamp + 300
);
}
}
{
"compilationTarget": {
"Apu.sol": "Apu"
},
"evmVersion": "paris",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": true,
"runs": 200
},
"remappings": []
}
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