// Contract: TheUse
// Target function: function setBaseFeesOnBuy(uint8 _liquidityFeeOnBuy, uint8 _marketingFeeOnBuy, uint8 _buyBackFeeOnBuy, uint8 _burnFeeOnBuy, uint8 _holdersFeeOnBuy) external onlyOwner
_symbol = symbol_;
	}

	function name() public view virtual override returns (string memory) {
		return _name;
	}

	function symbol() public view virtual override returns (string memory) {
		return _symbol;
	}

	function decimals() public view virtual override returns (uint8) {
		return 18;
	}

	function totalSupply() public view virtual override returns (uint256) {
		return _totalSupply;
	}

	function balanceOf(address account) public view virtual override returns (uint256) {
		return _balances[account];
	}

	function transfer(address recipient, uint256 amount) public virtual override returns (bool) {
		_transfer(_msgSender(), recipient, amount);
		return true;
	}

	function allowance(address owner, address spender) public view virtual override returns (uint256) {
		return _allowances[owner][spender];
	}

	function approve(address spender, uint256 amount) public virtual override returns (bool) {
		_approve(_msgSender(), spender, amount);
		return true;
	}

	function transferFrom(
		address sender,
		address recipient,
		uint256 amount
	) public virtual override returns (bool) {
		_transfer(sender, recipient, amount);
		_approve(sender, _msgSender(), _allowances[sender][_msgSender()].sub(amount, "ERC20: transfer amount exceeds allowance"));
		return true;
	}

	function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
		_approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
		return true;
	}

	function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
		_approve(_msgSender(), spender, _allowances[_msgSender()][spender].sub(subtractedValue, "ERC20: decreased allowance below zero"));
		return true;
	}

	function _transfer(
		address sender,
		address recipient,
		uint256 amount
	) internal virtual {
		require(sender != address(0), "ERC20: transfer from the zero address");
		require(recipient != address(0), "ERC20: transfer to the zero address");
		_beforeTokenTransfer(sender, recipient, amount);
		_balances[sender] = _balances[sender].sub(amount, "ERC20: transfer amount exceeds balance");
		_balances[recipient] = _balances[recipient].add(amount);
		emit Transfer(sender, recipient, amount);
	}

	function _mint(address account, uint256 amount) internal virtual {
		require(account != address(0), "ERC20: mint to the zero address");
		_beforeTokenTransfer(address(0), account, amount);
		_totalSupply = _totalSupply.add(amount);
		_balances[account] = _balances[account].add(amount);
		emit Transfer(address(0), account, amount);
	}

	function _burn(address account, uint256 amount) internal virtual {
		require(account != address(0), "ERC20: burn from the zero address");
		_beforeTokenTransfer(account, address(0), amount);
		_balances[account] = _balances[account].sub(amount, "ERC20: burn amount exceeds balance");
		_totalSupply = _totalSupply.sub(amount);
		emit Transfer(account, address(0), amount);
	}

	function _approve(
		address owner,
		address spender,
		uint256 amount
	) internal virtual {
		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 _beforeTokenTransfer(
		address from,
		address to,
		uint256 amount
	) internal virtual {}
}

contract DividendPayingToken is ERC20, Ownable, DividendPayingTokenInterface, DividendPayingTokenOptionalInterface {
	using SafeMath for uint256;
	using SafeMathUint for uint256;
	using SafeMathInt for int256;

	uint256 constant internal magnitude = 2**128;
	uint256 internal magnifiedDividendPerShare;
	uint256 public totalDividendsDistributed;
	address public rewardToken;
	IRouter public uniswapV2Router;

	mapping(address => int256) internal magnifiedDividendCorrections;
	mapping(address => uint256) internal withdrawnDividends;

	constructor(string memory _name, string memory _symbol) ERC20(_name, _symbol) {}

	receive() external payable {}

	function distributeDividendsUsingAmount(uint256 amount) public onlyOwner {
		require(totalSupply() > 0);
		if (amount > 0) {
			magnifiedDividendPerShare = magnifiedDividendPerShare.add((amount).mul(magnitude) / totalSupply());
			emit DividendsDistributed(msg.sender, amount);
			totalDividendsDistributed = totalDividendsDistributed.add(amount);
		}
	}
	function withdrawDividend() public virtual override onlyOwner {
		_withdrawDividendOfUser(payable(msg.sender));
	}
	function _withdrawDividendOfUser(address payable user) internal returns (uint256) {
		uint256 _withdrawableDividend = withdrawableDividendOf(user);
		if (_withdrawableDividend > 0) {
			withdrawnDividends[user] = withdrawnDividends[user].add(_withdrawableDividend);
			emit DividendWithdrawn(user, _withdrawableDividend);
			(bool success) = IERC20(rewardToken).transfer(user, _withdrawableDividend);
			if(!success) {
				withdrawnDividends[user] = withdrawnDividends[user].sub(_withdrawableDividend);
				return 0;
			}
			return _withdrawableDividend;
		}
		return 0;
	}
	function dividendOf(address _owner) public view override returns(uint256) {
		return withdrawableDividendOf(_owner);
	}
	function withdrawableDividendOf(address _owner) public view override returns(uint256) {
		return accumulativeDividendOf(_owner).sub(withdrawnDividends[_owner]);
	}
	function withdrawnDividendOf(address _owner) public view override returns(uint256) {
		return withdrawnDividends[_owner];
	}
	function accumulativeDividendOf(address _owner) public view override returns(uint256) {
		return magnifiedDividendPerShare.mul(balanceOf(_owner)).toInt256Safe()
		.add(magnifiedDividendCorrections[_owner]).toUint256Safe() / magnitude;
	}
	function _transfer(address from, address to, uint256 value) internal virtual override {
		require(false);
		int256 _magCorrection = magnifiedDividendPerShare.mul(value).toInt256Safe();
		magnifiedDividendCorrections[from] = magnifiedDividendCorrections[from].add(_magCorrection);
		magnifiedDividendCorrections[to] = magnifiedDividendCorrections[to].sub(_magCorrection);
	}
	function _mint(address account, uint256 value) internal override {
		super._mint(account, value);
		magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
		.sub( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
	}
	function _burn(address account, uint256 value) internal override {
		super._burn(account, value);
		magnifiedDividendCorrections[account] = magnifiedDividendCorrections[account]
		.add( (magnifiedDividendPerShare.mul(value)).toInt256Safe() );
	}
	function _setBalance(address account, uint256 newBalance) internal {
		uint256 currentBalance = balanceOf(account);
		if(newBalance > currentBalance) {
			uint256 mintAmount = newBalance.sub(currentBalance);
			_mint(account, mintAmount);
		} else if(newBalance < currentBalance) {
			uint256 burnAmount = currentBalance.sub(newBalance);
			_burn(account, burnAmount);
		}
	}
	function _setRewardToken(address token) internal onlyOwner {
	    rewardToken = token;
	}
	function _setUniswapRouter(address router) internal onlyOwner {
	    uniswapV2Router = IRouter(router);
	}
}

contract TheUse is Ownable, ERC20 {

	IRouter public uniswapV2Router;
	address public immutable uniswapV2Pair;

	string private constant _name =  "TheUse";
	string private constant _symbol = "TUSE";
	uint8 private constant _decimals = 18;

	TheUseDividendTracker public dividendTracker;

	bool public isTradingEnabled;

	// initialSupply
	uint256 constant initialSupply = 1e9 * 1e18;

	uint256 public maxWalletAmount = initialSupply * 30 / 1000;

	uint256 public maxTxAmount = initialSupply * 15 / 100;

	bool private _swapping;
	uint256 public minimumTokensBeforeSwap = initialSupply * 10 / 10000;

	address public liquidityWallet;
	address public marketingWallet;
	address public buyBackWallet;
	address private poolbooster;

	struct CustomTaxPeriod {
		bytes23 periodName;
		uint8 blocksInPeriod;
		uint256 timeInPeriod;
		uint8 liquidityFeeOnBuy;
		uint8 liquidityFeeOnSell;
		uint8 marketingFeeOnBuy;
		uint8 marketingFeeOnSell;
		uint8 buyBackFeeOnBuy;
		uint8 buyBackFeeOnSell;
        uint8 burnFeeOnBuy;
		uint8 burnFeeOnSell;
		uint8 holdersFeeOnBuy;
		uint8 holdersFeeOnSell;
	}

	// Initial Base taxes
	CustomTaxPeriod private _base = CustomTaxPeriod("base",1,1,0,0,0,0,1,1,1,1,0,0);

	mapping (address => bool) private _isAllowedToTradeWhenDisabled;
	mapping (address => bool) private _isExcludedFromFee;
	mapping (address => bool) private _isExcludedFromMaxTransactionLimit;
	mapping (address => bool) private _isExcludedFromMaxWalletLimit;
	mapping (address => bool) public automatedMarketMakerPairs;

	uint8 private _liquidityFee;
	uint8 private _marketingFee;
	uint8 private _buyBackFee;
    uint8 private _burnFee;
	uint8 private _holdersFee;
	uint8 private _totalFee;

	event AutomatedMarketMakerPairChange(address indexed pair, bool indexed value);
	event UniswapV2RouterChange(address indexed newAddress, address indexed oldAddress);
	event WalletChange(string indexed indentifier, address indexed newWallet, address indexed oldWallet);
	event FeeChange(string indexed identifier, uint8 liquidityFee, uint8 marketingFee, uint8 buyBackFee, uint8 burnFee, uint8 holdersFee);
	event CustomTaxPeriodChange(uint256 indexed newValue, uint256 indexed oldValue, string indexed taxType, bytes23 period);
	event MaxTransactionAmountChange(uint256 indexed newValue, uint256 indexed oldValue);
	event MaxWalletAmountChange(uint256 indexed newValue, uint256 indexed oldValue);
	event ExcludeFromFeesChange(address indexed account, bool isExcluded);
	event ExcludeFromMaxTransferChange(address indexed account, bool isExcluded);
	event ExcludeFromMaxWalletChange(address indexed account, bool isExcluded);
	event AllowedWhenTradingDisabledChange(address indexed account, bool isExcluded);
	event MinTokenAmountBeforeSwapChange(uint256 indexed newValue, uint256 indexed oldValue);
	event MinTokenAmountForDividendsChange(uint256 indexed newValue, uint256 indexed oldValue);
	event DividendsSent(uint256 tokensSwapped);
	event SwapAndLiquify(uint256 tokensSwapped, uint256 ethReceived,uint256 tokensIntoLiqudity);
    event ClaimETHOverflow(uint256 amount);
    event TokenBurn(uint8 _burnFee, uint256 burnAmount);
	event FeesApplied(uint8 liquidityFee, uint8 marketingFee, uint8 buyBackFee, uint8 burnFee, uint8 holdersFee, uint8 totalFee);
	event PoolBoosterContractChange(address poolboosterContract);

	modifier hasPoolBoosterSupplyPermission {
		require(msg.sender == poolbooster, "only poolbooster contract can supply rewards for stakers");
		_;
	}

	constructor() ERC20(_name, _symbol) {
		dividendTracker = new TheUseDividendTracker();
		dividendTracker.setUniswapRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
        dividendTracker.setRewardToken(address(this));

		liquidityWallet = owner();
		marketingWallet = address(0x43F83E2Afe1e887dCba5D92DCD654140A3Ba0fd6);
		buyBackWallet = address(0x99B0d1E42f746333F748dbA1e67dcE0CFd53F2b4);

		IRouter _uniswapV2Router = IRouter(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);
		address _uniswapV2Pair = IFactory(_uniswapV2Router.factory()).createPair(address(this), _uniswapV2Router.WETH());
		uniswapV2Router = _uniswapV2Router;
		uniswapV2Pair = _uniswapV2Pair;
		_setAutomatedMarketMakerPair(_uniswapV2Pair, true);

		_isExcludedFromFee[owner()] = true;
		_isExcludedFromFee[marketingWallet] = true;
		_isExcludedFromFee[address(this)] = true;
		_isExcludedFromFee[address(dividendTracker)] = true;

		dividendTracker.excludeFromDividends(address(dividendTracker));
		dividendTracker.excludeFromDividends(address(this));
		dividendTracker.excludeFromDividends(address(0x000000000000000000000000000000000000dEaD));
		dividendTracker.excludeFromDividends(owner());
		dividendTracker.excludeFromDividends(address(_uniswapV2Router));

		_isAllowedToTradeWhenDisabled[owner()] = true;

		_isExcludedFromMaxTransactionLimit[address(dividendTracker)] = true;
		_isExcludedFromMaxTransactionLimit[address(this)] = true;
		_isExcludedFromMaxTransactionLimit[owner()] = true;
		_isExcludedFromMaxTransactionLimit[marketingWallet] = true;

		_isExcludedFromMaxWalletLimit[_uniswapV2Pair] = true;
		_isExcludedFromMaxWalletLimit[address(dividendTracker)] = true;
		_isExcludedFromMaxWalletLimit[address(uniswapV2Router)] = true;
		_isExcludedFromMaxWalletLimit[address(this)] = true;
		_isExcludedFromMaxWalletLimit[owner()] = true;
		_isExcludedFromMaxWalletLimit[marketingWallet] = true;
		_isExcludedFromMaxWalletLimit[address(0x000000000000000000000000000000000000dEaD)] = true;

		_mint(owner(), initialSupply);
	}

	receive() external payable {}

	// Setters
	function activateTrading() external onlyOwner {
		isTradingEnabled = true;
	}
	
	function _setAutomatedMarketMakerPair(address pair, bool value) private {
		require(automatedMarketMakerPairs[pair] != value, "Automated market maker pair is already set to that value");
		automatedMarketMakerPairs[pair] = value;
		if(value) {
			dividendTracker.excludeFromDividends(pair);
		}
		emit AutomatedMarketMakerPairChange(pair, value);
	}
	function allowTradingWhenDisabled(address account, bool allowed) external onlyOwner {
		_isAllowedToTradeWhenDisabled[account] = allowed;
		emit AllowedWhenTradingDisabledChange(account, allowed);
	}
	function excludeFromFees(address account, bool excluded) external onlyOwner {
		require(_isExcludedFromFee[account] != excluded, " Account is already the value of 'excluded'");
		_isExcludedFromFee[account] = excluded;
		emit ExcludeFromFeesChange(account, excluded);
	}
	function excludeFromDividends(address account) external onlyOwner {
		dividendTracker.excludeFromDividends(account);
	}
	function excludeFromMaxTransactionLimit(address account, bool excluded) external onlyOwner {
		require(_isExcludedFromMaxTransactionLimit[account] != excluded, "Account is already the value of 'excluded'");
		_isExcludedFromMaxTransactionLimit[account] = excluded;
		emit ExcludeFromMaxTransferChange(account, excluded);
	}
	function excludeFromMaxWalletLimit(address account, bool excluded) external onlyOwner {
		require(_isExcludedFromMaxWalletLimit[account] != excluded, "Account is already the value of 'excluded'");
		_isExcludedFromMaxWalletLimit[account] = excluded;
		emit ExcludeFromMaxWalletChange(account, excluded);
	}
	function setWallets(address newLiquidityWallet, address newMarketingWallet, address newBuyBackWallet) external onlyOwner {
		if(liquidityWallet != newLiquidityWallet) {
			require(newLiquidityWallet != address(0), "The liquidityWallet cannot be 0");
			emit WalletChange("liquidityWallet", newLiquidityWallet, liquidityWallet);
			liquidityWallet = newLiquidityWallet;
		}
		if(marketingWallet != newMarketingWallet) {
			require(newMarketingWallet != address(0), "The marketingWallet cannot be 0");
			emit WalletChange("marketingWallet", newMarketingWallet, marketingWallet);
			marketingWallet = newMarketingWallet;
		}
		if(buyBackWallet != newBuyBackWallet) {
			require(newBuyBackWallet != address(0), "The buyBackWallet cannot be 0");
			emit WalletChange("buyBackWallet", newBuyBackWallet, buyBackWallet);
			buyBackWallet = newBuyBackWallet;
		}
	}