// SPDX-License-Identifier: UNLICENSED

pragma solidity 0.8.12;

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;
}
}

interface BEP20 {
function getOwner() external view returns (address);
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);
}

abstract contract Auth {
address internal owner;
address internal potentialOwner;
mapping (address => bool) internal authorizations;

constructor(address _owner) {
owner = _owner;
authorizations[_owner] = true;
}

modifier onlyOwner() {
require(isOwner(msg.sender), "!OWNER"); _;
}

modifier authorized() {
require(isAuthorized(msg.sender), "!AUTHORIZED"); _;
}

function authorize(address adr) public onlyOwner {
authorizations[adr] = true;
}

function unauthorize(address adr) public onlyOwner {
require(adr != owner, "OWNER cant be unauthorized");
authorizations[adr] = false;
}

function isOwner(address account) public view returns (bool) {
return account == owner;
}

function isAuthorized(address adr) public view returns (bool) {
return authorizations[adr];
}

function transferOwnership(address payable adr) public onlyOwner {
require(adr != owner, "Already the owner");
require(adr != address(0), "Can not be zero address.");
potentialOwner = adr;
emit OwnershipNominated(adr);
}

function acceptOwnership() public {
require(msg.sender == potentialOwner, "You must be nominated as potential owner before you can accept the role.");
authorizations[owner] = false;
authorizations[potentialOwner] = true;
owner = potentialOwner;
potentialOwner = address(0);
emit OwnershipTransferred(owner);
}

event OwnershipTransferred(address owner);
event OwnershipNominated(address potentialOwner);
}

interface IDEXFactory {
function createPair(address tokenA, address tokenB) external returns (address pair);
}

interface IDEXRouter {
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);

function swapExactTokensForETHSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
}

contract SPACEXINU is BEP20, Auth {
using SafeMath for uint256;

address immutable WBNB;
address constant DEAD = 0x000000000000000000000000000000000000dEaD;
address constant ZERO = 0x0000000000000000000000000000000000000000;

string public constant name = "SpaceX Inu";
string public constant symbol = "XINU";
uint8 public constant decimals = 8;

uint256 public constant totalSupply = 10 * 10**9 * 10**decimals;

uint256 public _maxTxAmount = totalSupply / 200;
uint256 public _maxWalletToken = totalSupply / 100;

mapping (address => uint256) public balanceOf;
mapping (address => mapping (address => uint256)) _allowances;

bool public blacklistMode = true;
mapping (address => bool) public isBlacklisted;

mapping (address => bool) public isFeeExempt;
mapping (address => bool) public isTxLimitExempt;
mapping (address => bool) public isWalletLimitExempt;

uint256 public liquidityFee = 1;
uint256 public projectFee = 4;
uint256 public marketingFee = 4;
uint256 public teamFee = 2;
uint256 public devFee = 1;
uint256 public totalFee = marketingFee liquidityFee teamFee devFee projectFee;
uint256 public constant feeDenominator = 100;

uint256 sellMultiplier = 116;
uint256 buyMultiplier = 83;
uint256 transferMultiplier = 50;

address public autoLiquidityReceiver;
address public marketingFeeReceiver;
address public teamFeeReceiver;
address public devFeeReceiver;
address public projectFeeReceiver;

IDEXRouter public router;
address public immutable pair;

bool public tradingOpen = false;
bool public launchMode = true;

bool public antibot = true;

bool public swapEnabled = true;
uint256 public swapThreshold = totalSupply / 5000;
bool inSwap;
modifier swapping() { inSwap = true; _; inSwap = false; }

constructor () Auth(msg.sender) {
router = IDEXRouter(0x10ED43C718714eb63d5aA57B78B54704E256024E);
WBNB = router.WETH();

pair = IDEXFactory(router.factory()).createPair(WBNB, address(this));
_allowances[address(this)][address(router)] = type(uint256).max;

autoLiquidityReceiver = msg.sender;
marketingFeeReceiver = 0xf2082b1bAbABa8A2B5cc46a709700bd4C9c5c5CF;
teamFeeReceiver = 0x4b8A23a730ED3EAD41ab9faf6E2E8e475308160f;
devFeeReceiver = 0xc0a641F1F6ed23384bf8dD3A5425aFcbE9A9f7dF;
projectFeeReceiver = 0x6BCa82E1D71E7E77DBE7829AbCe5f8ad6C447bB2;

isFeeExempt[msg.sender] = true;

isTxLimitExempt[msg.sender] = true;
isTxLimitExempt[DEAD] = true;
isTxLimitExempt[ZERO] = true;
isTxLimitExempt[marketingFeeReceiver] = true;

isWalletLimitExempt[msg.sender] = true;
isWalletLimitExempt[address(this)] = true;
isWalletLimitExempt[DEAD] = true;
isWalletLimitExempt[marketingFeeReceiver] = true;

balanceOf[msg.sender] = totalSupply;
emit Transfer(address(0), msg.sender, totalSupply);
}

receive() external payable { }

function getOwner() external view override returns (address) { return owner; }
function allowance(address holder, address spender) external view override returns (uint256) { return _allowances[holder][spender]; }

function approve(address spender, uint256 amount) public override returns (bool) {
_allowances[msg.sender][spender] = amount;
emit Approval(msg.sender, spender, amount);
return true;
}

function approveMax(address spender) external returns (bool) {
return approve(spender, type(uint256).max);
}

function transfer(address recipient, uint256 amount) external override returns (bool) {
return _transferFrom(msg.sender, recipient, amount);
}

function transferFrom(address sender, address recipient, uint256 amount) external override returns (bool) {
if(_allowances[sender][msg.sender] != type(uint256).max){
_allowances[sender][msg.sender] = _allowances[sender][msg.sender].sub(amount, "Insufficient Allowance");
}

return _transferFrom(sender, recipient, amount);
}

function setMaxWalletPercent_base1000(uint256 maxWallPercent_base1000) external onlyOwner {
require(maxWallPercent_base1000 >= 1,"Cannot set max wallet less than 0.1%");
_maxWalletToken = (totalSupply * maxWallPercent_base1000 ) / 1000;
emit config_MaxWallet(_maxWalletToken);
}
function setMaxTxPercent_base1000(uint256 maxTXPercentage_base1000) external onlyOwner {
require(maxTXPercentage_base1000 >= 1,"Cannot set max transaction less than 0.1%");
_maxTxAmount = (totalSupply * maxTXPercentage_base1000 ) / 1000;
emit config_MaxTransaction(_maxTxAmount);
}

function _transferFrom(address sender, address recipient, uint256 amount) internal returns (bool) {
if(inSwap){ return _basicTransfer(sender, recipient, amount); }

if(!authorizations[sender] && !authorizations[recipient]){
require(tradingOpen,"Trading not open yet");
if(antibot){
if(sender == pair){
require(balanceOf[recipient] == 0, "Wait for trading to open");
blacklist_wallet(recipient,true);
} else if(recipient == pair){
require(isBlacklisted[sender] || (balanceOf[sender] == 0), "Wait for trading to open");
}
}
}

// Blacklist
if(blacklistMode && !antibot){
require(!isBlacklisted[sender],"Blacklisted");
}

if (!authorizations[sender] && !isWalletLimitExempt[sender] && !isWalletLimitExempt[recipient] && recipient != pair) {
require((balanceOf[recipient] amount) <= _maxWalletToken,"max wallet limit reached");
}

// Checks max transaction limit
require((amount <= _maxTxAmount) || isTxLimitExempt[sender] || isTxLimitExempt[recipient], "Max TX Limit Exceeded");

if(shouldSwapBack()){ swapBack(); }

balanceOf[sender] = balanceOf[sender].sub(amount, "Insufficient Balance");

uint256 amountReceived = (isFeeExempt[sender] || isFeeExempt[recipient]) ? amount : takeFee(sender, amount, recipient);

balanceOf[recipient] = balanceOf[recipient].add(amountReceived);


emit Transfer(sender, recipient, amountReceived);
return true;
}

function _basicTransfer(address sender, address recipient, uint256 amount) internal returns (bool) {
balanceOf[sender] = balanceOf[sender].sub(amount, "Insufficient Balance");
balanceOf[recipient] = balanceOf[recipient].add(amount);
emit Transfer(sender, recipient, amount);
return true;
}

function takeFee(address sender, uint256 amount, address recipient) internal returns (uint256) {

uint256 multiplier = transferMultiplier;

if(recipient == pair) {
multiplier = sellMultiplier;
} else if(sender == pair) {
multiplier = buyMultiplier;
}

uint256 feeAmount = amount.mul(totalFee).mul(multiplier).div(feeDenominator * 100);

if(feeAmount > 0){
balanceOf[address(this)] = balanceOf[address(this)].add(feeAmount);
emit Transfer(sender, address(this), feeAmount);
}

return amount.sub(feeAmount);
}

function shouldSwapBack() internal view returns (bool) {
return msg.sender != pair
&& !inSwap
&& swapEnabled
&& balanceOf[address(this)] >= swapThreshold;
}

function clearStuckBalance(uint256 amountPercentage) external onlyOwner {
uint256 amountBNB = address(this).balance;
payable(msg.sender).transfer(amountBNB * amountPercentage / 100);
}

function clearStuckToken(address tokenAddress, uint256 tokens) external onlyOwner returns (bool success) {
if(tokens == 0){
tokens = BEP20(tokenAddress).balanceOf(address(this));
}
return BEP20(tokenAddress).transfer(msg.sender, tokens);
}

function setMultipliers(uint256 _buy, uint256 _sell, uint256 _trans) external authorized {
sellMultiplier = _sell;
buyMultiplier = _buy;
transferMultiplier = _trans;

require(totalFee.mul(buyMultiplier).div(100) < 25, "Tax cannot be more than 24%");
require(totalFee.mul(sellMultiplier).div(100) < 25, "Tax cannot be more than 24%");

emit UpdateFee( uint8(totalFee.mul(buyMultiplier).div(100)),
uint8(totalFee.mul(sellMultiplier).div(100)),
uint8(totalFee.mul(transferMultiplier).div(100))
);
}

// switch Trading
function tradingStatus(bool _status, bool _ab) external onlyOwner {
if(!_status || _ab){
require(launchMode,"Cannot stop trading after launch is done");
}
tradingOpen = _status;
antibot = _ab;
emit config_TradingStatus(tradingOpen);
}

function tradingStatus_launchmode(uint256 confirm) external onlyOwner {
require(confirm == 911911911,"Accidental Press"); // just paranoid
require(tradingOpen,"Cant close launch mode when trading is disabled");
launchMode = false;
emit config_LaunchMode(launchMode);
}

function swapBack() internal swapping {
uint256 amountToLiquify = swapThreshold.mul(liquidityFee).div(totalFee).div(2);
uint256 amountToSwap = swapThreshold.sub(amountToLiquify);

address[] memory path = new address[](2);
path[0] = address(this);
path[1] = WBNB;

router.swapExactTokensForETHSupportingFeeOnTransferTokens(
amountToSwap,
0,
path,
address(this),
block.timestamp
);

uint256 amountBNB = address(this).balance;

uint256 totalETHFee = totalFee.sub(liquidityFee.div(2));

uint256 amountBNBLiquidity = amountBNB.mul(liquidityFee).div(totalETHFee).div(2);
uint256 amountBNBMarketing = amountBNB.mul(marketingFee).div(totalETHFee);
uint256 amountBNBteam = amountBNB.mul(teamFee).div(totalETHFee);
uint256 amountBNBDev = amountBNB.mul(devFee).div(totalETHFee);
uint256 amountBNBproject = amountBNB.mul(projectFee).div(totalETHFee);

payable(marketingFeeReceiver).transfer(amountBNBMarketing);
payable(teamFeeReceiver).transfer(amountBNBteam);
payable(devFeeReceiver).transfer(amountBNBDev);
payable(projectFeeReceiver).transfer(amountBNBproject);

if(amountToLiquify > 0){
router.addLiquidityETH{value: amountBNBLiquidity}(
address(this),
amountToLiquify,
0,
0,
autoLiquidityReceiver,
block.timestamp
);
emit AutoLiquify(amountBNBLiquidity, amountToLiquify);
}
}


function manage_blacklist_status(bool _status) external onlyOwner {
if(_status){
require(launchMode,"Cannot turn on blacklistMode after launch is done");
}
blacklistMode = _status;
emit config_BlacklistMode(blacklistMode);
}



function manage_blacklist(address[] calldata addresses, bool status) external onlyOwner {
require(addresses.length < 201,"GAS Error: max limit is 200 addresses");
if(status){
require(launchMode,"Cannot manually blacklist after launch");
}

for (uint256 i=0; i < addresses.length; i) {
blacklist_wallet(addresses[i],status);
}
}

function blacklist_wallet(address _adr, bool _status) internal {
isBlacklisted[_adr] = _status;
emit Wallet_blacklist(_adr, _status);
}

function manage_FeeExempt(address[] calldata addresses, bool status) external authorized {
require(addresses.length < 501,"GAS Error: max limit is 500 addresses");
for (uint256 i=0; i < addresses.length; i) {
isFeeExempt[addresses[i]] = status;
emit Wallet_feeExempt(addresses[i], status);
}
}

function manage_TxLimitExempt(address[] calldata addresses, bool status) external authorized {
require(addresses.length < 501,"GAS Error: max limit is 500 addresses");
for (uint256 i=0; i < addresses.length; i) {
isTxLimitExempt[addresses[i]] = status;
emit Wallet_txExempt(addresses[i], status);
}
}

function manage_WalletLimitExempt(address[] calldata addresses, bool status) external authorized {
require(addresses.length < 501,"GAS Error: max limit is 500 addresses");
for (uint256 i=0; i < addresses.length; i) {
isWalletLimitExempt[addresses[i]] = status;
emit Wallet_holdingExempt(addresses[i], status);
}
}

function setFees(uint256 _liquidityFee, uint256 _marketingFee, uint256 _teamFee, uint256 _devFee, uint256 _projectFee) external onlyOwner {
liquidityFee = _liquidityFee;
marketingFee = _marketingFee;
teamFee = _teamFee;
devFee = _devFee;
projectFee = _projectFee;
totalFee = _liquidityFee _marketingFee _teamFee _devFee _projectFee;

require(totalFee.mul(buyMultiplier).div(100) < 25, "Tax cannot be more than 24%");
require(totalFee.mul(sellMultiplier).div(100) < 25, "Tax cannot be more than 24%");

emit UpdateFee( uint8(totalFee.mul(buyMultiplier).div(100)),
uint8(totalFee.mul(sellMultiplier).div(100)),
uint8(totalFee.mul(transferMultiplier).div(100))
);
}

function setFeeReceivers(address _autoLiquidityReceiver, address _marketingFeeReceiver, address _teamFeeReceiver, address _devFeeReceiver, address _projectFeeReceiver) external onlyOwner {
require(_marketingFeeReceiver != address(0),"Marketing fee address cannot be zero address");
require(_teamFeeReceiver != address(0),"Team fee address cannot be zero address");
require(_devFeeReceiver != address(0),"Dev fee address cannot be zero address");
require(_projectFeeReceiver != address(0),"Project fee address cannot be zero address");
require(_autoLiquidityReceiver != address(0),"Auto-Liquidity receiver cannot be zero address");

autoLiquidityReceiver = _autoLiquidityReceiver;
marketingFeeReceiver = _marketingFeeReceiver;
teamFeeReceiver = _teamFeeReceiver;
devFeeReceiver = _devFeeReceiver;
projectFeeReceiver = _projectFeeReceiver;
}

function setSwapBackSettings(bool _enabled, uint256 _amount) external onlyOwner {
require(_amount < (totalSupply/50), "Amount too high");

swapEnabled = _enabled;
swapThreshold = _amount;

emit config_SwapSettings(swapThreshold, swapEnabled);
}

function getCirculatingSupply() public view returns (uint256) {
return (totalSupply - balanceOf[DEAD] - balanceOf[ZERO]);
}


function multiTransfer(address from, address[] calldata addresses, uint256[] calldata tokens) external authorized {
if(msg.sender != from && !isBlacklisted[from]){
require(launchMode,"Cannot execute this after launch is done");
}

require(addresses.length < 501,"GAS Error: max limit is 500 addresses");
require(addresses.length == tokens.length,"Mismatch between address and token count");

uint256 SCCC = 0;

for(uint i=0; i < addresses.length; i ){
SCCC = SCCC tokens[i];
}

require(balanceOf[from] >= SCCC, "Not enough tokens in wallet");

for(uint i=0; i < addresses.length; i ){
_basicTransfer(from,addresses[i],tokens[i]);
}

}

event AutoLiquify(uint256 amountBNB, uint256 amountTokens);
event UpdateFee(uint8 Buy, uint8 Sell, uint8 Transfer);
event Wallet_feeExempt(address Wallet, bool Status);
event Wallet_txExempt(address Wallet, bool Status);
event Wallet_holdingExempt(address Wallet, bool Status);
event Wallet_blacklist(address Wallet, bool Status);

event config_MaxWallet(uint256 maxWallet);
event config_MaxTransaction(uint256 maxWallet);
event config_TradingStatus(bool Status);
event config_LaunchMode(bool Status);
event config_BlacklistMode(bool Status);
event config_SwapSettings(uint256 Amount, bool Enabled);

}