pragma solidity >=0.6.0 <0.9.0;

// SPDX-License-Identifier: MIT

interface IERC20 {
function totalSupply() external view returns (uint256);
function decimals() external view returns (uint8);
function symbol() external view returns (string memory);
function name() external view returns (string memory);
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);
}

interface IFactoryV2 {
event PairCreated(address indexed token0, address indexed token1, address lpPair, uint);
function getPair(address tokenA, address tokenB) external view returns (address lpPair);
function createPair(address tokenA, address tokenB) external returns (address lpPair);
}

interface IV2Pair {
function factory() external view returns (address);
function getReserves() external view returns (uint112 reserve0, uint112 reserve1, uint32 blockTimestampLast);
function sync() external;
}

interface IRouter01 {
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 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 swapExactETHForTokens(
uint amountOutMin,
address[] calldata path,
address to, uint deadline
) external payable returns (uint[] memory amounts);
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);
}

interface IRouter02 is IRouter01 {
function swapExactTokensForETHSupportingFeeOnTransferTokens(
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 swapExactTokensForTokensSupportingFeeOnTransferTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external;
function swapExactTokensForTokens(
uint amountIn,
uint amountOutMin,
address[] calldata path,
address to,
uint deadline
) external returns (uint[] memory amounts);
}

interface AntiSnipe {
function checkUser(address from, address to, uint256 amt) external returns (bool);
function setLaunch(address _initialLpPair, uint32 _liqAddBlock, uint64 _liqAddStamp, uint8 dec) external;
function setLpPair(address pair, bool enabled) external;
function setProtections(bool _as, bool _ag, bool _ab, bool _algo) external;
function setGasPriceLimit(uint256 gas) external;
function removeSniper(address account) external;
function removeBlacklisted(address account) external;
function isBlacklisted(address account) external view returns (bool);
}

contract LittleMissPyro is IERC20 {
// Ownership moved to in-contract for customizability.
address private _owner;

mapping (address => uint256) private _tOwned;
mapping (address => bool) lpPairs;
uint256 private timeSinceLastPair = 0;
mapping (address => mapping (address => uint256)) private _allowances;

mapping (address => bool) private _liquidityHolders;
mapping (address => bool) private _isExcludedFromProtection;
mapping (address => bool) private _isExcludedFromFees;
mapping (address => bool) private _isExcludedFromLimits;

uint256 constant private startingSupply = 100_000_000;

string constant private _name = "Little Miss Pyro";
string constant private _symbol = "LILMP";
uint8 constant private _decimals = 18;

uint256 private _tTotal = startingSupply * 10**_decimals;

struct Fees {
uint16 buyFee;
uint16 sellFee;
uint16 transferFee;
}

struct Ratios {
uint16 marketing;
uint16 charity;
uint16 operations;
uint16 burn;
uint16 totalSwap;
}

Fees public _taxRates = Fees({
buyFee: 10,
sellFee: 10,
transferFee: 20
});

Ratios public _ratios = Ratios({
marketing: 3,
charity: 1,
operations: 5,
burn: 1,
totalSwap: 3 1 5 1
});

uint256 constant public maxBuyTaxes = 10;
uint256 constant public maxSellTaxes = 10;
uint256 constant public maxTransferTaxes = 20;
uint256 constant public maxRoundtripTax = 20;
uint256 constant masterTaxDivisor = 100;

IRouter02 public dexRouter;
address public lpPair;
address constant public DEAD = 0x000000000000000000000000000000000000dEaD;
address constant public ZERO = address(0);

struct TaxWallets {
address payable marketing;
address payable charity;
address payable operations;
}

TaxWallets public _taxWallets = TaxWallets({
marketing: payable(0x8f4729Da3CE1718ad452d3427760D4623Fb1ddbB),
charity: payable(0x64e820E7558de85fE003311B75FC85Ca5763c1B2),
operations: payable(0x08bC9CcdecDD47254c364EDD19348a0147998789)
});

bool inSwap;
bool public contractSwapEnabled = false;
uint256 public swapThreshold;
uint256 public swapAmount;
bool public piContractSwapsEnabled;
uint256 public piSwapPercent;
bool public taxesAutomatic = true;
bool public burnEnabled = true;

uint256 private _maxTxAmount = (_tTotal * 1) / 10000;
uint256 private _maxWalletSize = (_tTotal * 2) / 10000000000;
bool public maxTxLocked = false;
bool public maxWalletLocked = false;

bool public tradingEnabled = false;
bool public _hasLiqBeenAdded = false;
AntiSnipe antiSnipe;
bool public protectionsLocked;

event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
event ContractSwapEnabledUpdated(bool enabled);
event AutoLiquify(uint256 amountCurrency, uint256 amountTokens);

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

modifier onlyOwner() {
require(_owner == msg.sender, "Caller =/= owner.");
_;
}

constructor () payable {
_tOwned[msg.sender] = _tTotal;
emit Transfer(address(0), msg.sender, _tTotal);

// Set the owner.
_owner = msg.sender;

if (block.chainid == 56) {
dexRouter = IRouter02(0x10ED43C718714eb63d5aA57B78B54704E256024E);
} else {
revert();
}

lpPair = IFactoryV2(dexRouter.factory()).createPair(dexRouter.WETH(), address(this));
lpPairs[lpPair] = true;

_approve(_owner, address(dexRouter), type(uint256).max);
_approve(address(this), address(dexRouter), type(uint256).max);

_isExcludedFromFees[_owner] = true;
_isExcludedFromFees[address(this)] = true;
_isExcludedFromFees[DEAD] = true;
_liquidityHolders[_owner] = true;
}

receive() external payable {}

//===============================================================================================================
//===============================================================================================================
//===============================================================================================================
// Ownable removed as a lib and added here to allow for custom transfers and renouncements.
// This allows for removal of ownership privileges from the owner once renounced or transferred.
function transferOwner(address newOwner) external onlyOwner {
require(newOwner != address(0), "Call renounceOwnership to transfer owner to the zero address.");
require(newOwner != DEAD, "Call renounceOwnership to transfer owner to the zero address.");
setExcludedFromFees(_owner, false);
setExcludedFromFees(newOwner, true);

if(balanceOf(_owner) > 0) {
_finalizeTransfer(_owner, newOwner, balanceOf(_owner), false, false, true);
}

address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);

}

function renounceOwnership() external onlyOwner {
setExcludedFromFees(_owner, false);
address oldOwner = _owner;
_owner = address(0);
emit OwnershipTransferred(oldOwner, address(0));
}
//===============================================================================================================
//===============================================================================================================
//===============================================================================================================

function totalSupply() external view override returns (uint256) { return _tTotal; }
function decimals() external pure override returns (uint8) { return _decimals; }
function symbol() external pure override returns (string memory) { return _symbol; }
function name() external pure override returns (string memory) { return _name; }
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 balanceOf(address account) public view override returns (uint256) {
return _tOwned[account];
}

function transfer(address recipient, uint256 amount) public override returns (bool) {
_transfer(msg.sender, recipient, amount);
return true;
}

function approve(address spender, uint256 amount) public override returns (bool) {
_approve(msg.sender, spender, amount);
return true;
}

function _approve(address sender, address spender, uint256 amount) internal {
require(sender != address(0), "ERC20: Zero Address");
require(spender != address(0), "ERC20: Zero Address");

_allowances[sender][spender] = amount;
emit Approval(sender, spender, 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] -= amount;
}

return _transfer(sender, recipient, amount);
}

function setInitializer(address initializer) external onlyOwner {
require(!tradingEnabled);
require(initializer != address(this), "Can't be self.");
antiSnipe = AntiSnipe(initializer);
}

function isExcludedFromLimits(address account) external view returns (bool) {
return _isExcludedFromLimits[account];
}

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

function isExcludedFromProtection(address account) external view returns (bool) {
return _isExcludedFromProtection[account];
}

function setExcludedFromLimits(address account, bool enabled) external onlyOwner {
_isExcludedFromLimits[account] = enabled;
}

function setExcludedFromFees(address account, bool enabled) public onlyOwner {
_isExcludedFromFees[account] = enabled;
}

function setExcludedFromProtection(address account, bool enabled) external onlyOwner {
_isExcludedFromProtection[account] = enabled;
}

function removeBlacklisted(address account) external onlyOwner {
// To remove from the pre-built blacklist ONLY. Cannot add to blacklist.
antiSnipe.removeBlacklisted(account);
}

function isBlacklisted(address account) public view returns (bool) {
return antiSnipe.isBlacklisted(account);
}

function removeSniper(address account) external onlyOwner {
require(!protectionsLocked, "All protections disable-locked.");
antiSnipe.removeSniper(account);
}

function setProtectionSettings(bool _antiSnipe, bool _antiGas, bool _antiBlock, bool _algo) external onlyOwner {
require(!protectionsLocked, "All protections disable-locked.");
antiSnipe.setProtections(_antiSnipe, _antiGas, _antiBlock, _algo);
}

function disableProtectionsLock() external onlyOwner {
require(!protectionsLocked);
require(address(antiSnipe) != address(0));
antiSnipe.setProtections(false, false, false, false);
protectionsLocked = true;
}

function setGasPriceLimit(uint256 gas) external onlyOwner {
require(!protectionsLocked, "All protections disable-locked.");
require(gas >= 200, "Too low.");
antiSnipe.setGasPriceLimit(gas);
}

function setTaxes(uint16 buyFee, uint16 sellFee, uint16 transferFee) external onlyOwner {
require(buyFee <= maxBuyTaxes
&& sellFee <= maxSellTaxes
&& transferFee <= maxTransferTaxes,
"Cannot exceed maximums.");
require(buyFee sellFee <= maxRoundtripTax, "Cannot exceed roundtrip maximum.");
_taxRates.buyFee = buyFee;
_taxRates.sellFee = sellFee;
_taxRates.transferFee = transferFee;
}

function setRatios(uint16 marketing, uint16 operations, uint16 charity, uint16 burn) external onlyOwner {
if(!_hasLiqBeenAdded) {
_ratios.burn = burn;
}
_ratios.marketing = marketing;
_ratios.operations = operations;
_ratios.charity = charity;
_ratios.totalSwap = marketing charity operations;
uint256 total = _taxRates.buyFee _taxRates.sellFee;
require(_ratios.totalSwap <= total, "Cannot exceed sum of buy and sell fees.");
}

function setWallets(address payable marketing, address payable operations, address payable charity) external onlyOwner {
_taxWallets.marketing = payable(marketing);
_taxWallets.operations = payable(operations);
_taxWallets.charity = payable(charity);
}

function setMaxTxPercent(uint256 percent, uint256 divisor) external onlyOwner {
require((_tTotal * percent) / divisor >= (_tTotal / 1000), "Max Transaction amt must be above 0.1% of total supply.");
require(!maxTxLocked, "Maximum transaction locked to total supply.");
if(percent == 999) {
_maxTxAmount = startingSupply * 10**_decimals;
maxTxLocked = true;
} else {
_maxTxAmount = (_tTotal * percent) / divisor;
}
}

function setMaxWalletSize(uint256 percent, uint256 divisor) external onlyOwner {
require((_tTotal * percent) / divisor >= (_tTotal / 100), "Max Wallet amt must be above 1% of total supply.");
require(!maxWalletLocked, "Maximum wallet locked to total supply.");
if (percent == 999) {
_maxWalletSize = startingSupply * 10**_decimals;
maxWalletLocked = true;
} else {
_maxWalletSize = (_tTotal * percent) / divisor;
}
}

function getMaxTX() public view returns (uint256) {
return _maxTxAmount / (10**_decimals);
}

function getMaxWallet() public view returns (uint256) {
return _maxWalletSize / (10**_decimals);
}

function setSwapSettings(uint256 thresholdPercent, uint256 thresholdDivisor, uint256 amountPercent, uint256 amountDivisor) external onlyOwner {
swapThreshold = (_tTotal * thresholdPercent) / thresholdDivisor;
swapAmount = (_tTotal * amountPercent) / amountDivisor;
require(swapThreshold <= swapAmount, "Threshold cannot be above amount.");
}

function setPriceImpactSwapAmount(uint256 priceImpactSwapPercent) external onlyOwner {
require(priceImpactSwapPercent <= 200, "Cannot set above 2%.");
piSwapPercent = priceImpactSwapPercent;
}

function setContractSwapEnabled(bool swapEnabled, bool priceImpactSwapEnabled) external onlyOwner {
contractSwapEnabled = swapEnabled;
piContractSwapsEnabled = priceImpactSwapEnabled;
emit ContractSwapEnabledUpdated(swapEnabled);
}

function setTaxesAutomatic(bool enabled) external onlyOwner {
taxesAutomatic = enabled;
}

function _hasLimits(address from, address to) internal view returns (bool) {
return from != _owner
&& to != _owner
&& tx.origin != _owner
&& !_liquidityHolders[to]
&& !_liquidityHolders[from]
&& to != DEAD
&& to != address(0)
&& from != address(this);
}

function _transfer(address from, address to, uint256 amount) internal returns (bool) {
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");
bool buy = false;
bool sell = false;
bool other = false;
if (lpPairs[from]) {
buy = true;
} else if (lpPairs[to]) {
sell = true;
} else {
other = true;
}
if(_hasLimits(from, to)) {
if(!tradingEnabled) {
revert("Trading not yet enabled!");
}
if(buy || sell){
if (!_isExcludedFromLimits[from] && !_isExcludedFromLimits[to] && !maxTxLocked) {
require(amount <= _maxTxAmount, "Transfer amount exceeds the maxTxAmount.");
}
}
if(to != address(dexRouter) && !sell && !maxWalletLocked) {
if (!_isExcludedFromLimits[to]) {
require(balanceOf(to) amount <= _maxWalletSize, "Transfer amount exceeds the maxWalletSize.");
}
}
}

if (sell) {
if (!inSwap) {
if(contractSwapEnabled) {
uint256 contractTokenBalance = balanceOf(address(this));
if (contractTokenBalance >= swapThreshold) {
uint256 swapAmt = swapAmount;
if(piContractSwapsEnabled) { swapAmt = (balanceOf(lpPair) * piSwapPercent) / masterTaxDivisor; }
if(contractTokenBalance >= swapAmt) { contractTokenBalance = swapAmt; }
contractSwap(contractTokenBalance);
}
}
}
}
return _finalizeTransfer(from, to, amount, buy, sell, other);
}

function contractSwap(uint256 contractTokenBalance) internal lockTheSwap {
Ratios memory ratios = _ratios;
if (ratios.totalSwap == 0) {
return;
}

if(_allowances[address(this)][address(dexRouter)] != type(uint256).max) {
_allowances[address(this)][address(dexRouter)] = type(uint256).max;
}

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

dexRouter.swapExactTokensForETHSupportingFeeOnTransferTokens(
contractTokenBalance,
0,
path,
address(this),
block.timestamp
);

uint256 amtBalance = address(this).balance;
bool success;
uint256 operationsBalance = (amtBalance * ratios.operations) / ratios.totalSwap;
uint256 charityBalance = (amtBalance * ratios.charity) / ratios.totalSwap;
uint256 marketingBalance = amtBalance - (operationsBalance charityBalance);
if (ratios.marketing > 0) {
(success,) = _taxWallets.marketing.call{value: marketingBalance, gas: 35000}("");
}
if (ratios.operations > 0) {
(success,) = _taxWallets.operations.call{value: operationsBalance, gas: 35000}("");
}
if (ratios.charity > 0) {
(success,) = _taxWallets.charity.call{value: charityBalance, gas: 35000}("");
}
}

function _checkLiquidityAdd(address from, address to) internal {
require(!_hasLiqBeenAdded, "Liquidity already added and marked.");
if (!_hasLimits(from, to) && to == lpPair) {
_liquidityHolders[from] = true;
_isExcludedFromFees[from] = true;
_hasLiqBeenAdded = true;
if(address(antiSnipe) == address(0)){
antiSnipe = AntiSnipe(address(this));
}
contractSwapEnabled = true;
emit ContractSwapEnabledUpdated(true);
}
}

function enableTrading() public onlyOwner {
require(!tradingEnabled, "Trading already enabled!");
require(_hasLiqBeenAdded, "Liquidity must be added.");
if(address(antiSnipe) == address(0)){
antiSnipe = AntiSnipe(address(this));
}
try antiSnipe.setLaunch(lpPair, uint32(block.number), uint64(block.timestamp), _decimals) {} catch {}
tradingEnabled = true;
swapThreshold = (balanceOf(lpPair) * 10) / 10000;
swapAmount = (balanceOf(lpPair) * 25) / 10000;
}

function sweepContingency() external onlyOwner {
require(!_hasLiqBeenAdded, "Cannot call after liquidity.");
payable(_owner).transfer(address(this).balance);
}

function multiSendTokens(address[] memory accounts, uint256[] memory amounts) external onlyOwner {
require(accounts.length == amounts.length, "Lengths do not match.");
for (uint8 i = 0; i < accounts.length; i ) {
require(balanceOf(msg.sender) >= amounts[i]);
_finalizeTransfer(msg.sender, accounts[i], amounts[i]*10**_decimals, false, false, true);
}
}

function _finalizeTransfer(address from, address to, uint256 amount, bool buy, bool sell, bool other) internal returns (bool) {
if (!_hasLiqBeenAdded) {
_checkLiquidityAdd(from, to);
if (!_hasLiqBeenAdded && _hasLimits(from, to) && !_isExcludedFromProtection[from] && !_isExcludedFromProtection[to] && !other) {
revert("Pre-liquidity transfer protection.");
}
}

if (_hasLimits(from, to) && !protectionsLocked) {
bool checked;
try antiSnipe.checkUser(from, to, amount) returns (bool check) {
checked = check;
} catch {
revert();
}

if(!checked) {
revert();
}
}

bool takeFee = true;
if(_isExcludedFromFees[from] || _isExcludedFromFees[to]){
takeFee = false;
}

_tOwned[from] -= amount;
uint256 amountReceived = (takeFee) ? takeTaxes(from, buy, sell, amount) : amount;
_tOwned[to] = amountReceived;

emit Transfer(from, to, amountReceived);
return true;
}

function takeTaxes(address from, bool buy, bool sell, uint256 amount) internal returns (uint256) {
Ratios memory ratios = _ratios;
uint256 currentFee;
if (buy) {
currentFee = _taxRates.buyFee;
} else if (sell) {
currentFee = _taxRates.sellFee;
} else {
currentFee = _taxRates.transferFee;
}

ratios.totalSwap = ratios.burn;
uint256 feeAmount = amount * currentFee / masterTaxDivisor;
uint256 burnAmount;

if (burnEnabled) {
burnAmount = (feeAmount * ratios.burn) / ratios.totalSwap;
if (burnAmount > 0) {
uint256 limit = 9_000 * 10**_decimals;
if(_tTotal > limit) {
if (_tTotal - burnAmount < limit) {
burnAmount = _tTotal - limit;
}
emit Transfer(from, ZERO, burnAmount);
_tTotal -= burnAmount;
} else if (burnEnabled) {
burnEnabled = false;
}
}
}

if (!taxesAutomatic) {
uint256 marketingAmount = (feeAmount * ratios.marketing) / ratios.totalSwap;
uint256 operationsAmount = (feeAmount * ratios.operations) / ratios.totalSwap;
uint256 charityAmount = feeAmount - (burnAmount marketingAmount operationsAmount);

if (marketingAmount > 0) {
_tOwned[_taxWallets.marketing] = marketingAmount;
emit Transfer(from, _taxWallets.marketing, marketingAmount);
}
if (operationsAmount > 0) {
_tOwned[_taxWallets.operations] = operationsAmount;
emit Transfer(from, _taxWallets.operations, operationsAmount);
}
if (charityAmount > 0) {
_tOwned[_taxWallets.charity] = charityAmount;
emit Transfer(from, _taxWallets.charity, charityAmount);
}
} else {
uint256 swapAmt = feeAmount - burnAmount;
if(swapAmt > 0) {
_tOwned[address(this)] = swapAmt;
emit Transfer(from, address(this), swapAmt);
}
}

return amount - feeAmount;
}
}