EarnSphere

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//                ┃┃
//                ╰╯
//
// SPDX-License-Identifier: MIT
pragma solidity 0.8.19;

abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

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);
}

interface IERC20Metadata is IERC20 {
    function name() external view returns (string memory);
    function symbol() external view returns (string memory);
    function decimals() external view returns (uint8);
}

abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    constructor() {
        _setOwner(_msgSender());
    }

    function owner() public view virtual returns (address) {
        return _owner;
    }

    modifier onlyOwner() {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
        _;
    }

    function renounceOwnership() public virtual onlyOwner {
        _setOwner(address(0));
    }

    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _setOwner(newOwner);
    }

    function _setOwner(address newOwner) private {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

interface IUniswapV2Router02 {
    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;
}

interface IUniswapV2Factory {
    event PairCreated(address indexed token0, address indexed token1, address pair, uint);

    function feeTo() external view returns (address);
    function feeToSetter() external view returns (address);

    function getPair(address tokenA, address tokenB) external view returns (address pair);
    function allPairs(uint) external view returns (address pair);
    function allPairsLength() external view returns (uint);

    function createPair(address tokenA, address tokenB) external returns (address pair);

    function setFeeTo(address) external;
    function setFeeToSetter(address) external;
}

contract EarnSphere is IERC20Metadata, Ownable {
    mapping(address => uint256) private _tOwned;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) public isExcludedFromFee;
    mapping(address => bool) public isExcludedFromMaxWalletToken;

    address public uniswapRouterAddress = 0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D;
    address payable public marketingWallet = payable(0x05EB2283525aF53168E792dBc5415741acA4083a);
    address payable public devWallet = payable(0x4142B89096a6377a749FBE13D2710CdaEEB373a3);
    address payable public rewardsWallet = payable(0xB27C44667Ac1C1b3cB74FfD877827c8B35f7EF46);
    address payable public constant burnWallet = payable(0x000000000000000000000000000000000000dEaD);
    address payable public lpWallet;

    uint8 private constant _decimals = 18;
    uint256 private _tTotal = 10**9 * 10**_decimals;
    string private constant _name = "EarnSphere";
    string private constant _symbol = "$ES";

    uint256 public swapMinTokens = 10**6 * 10**_decimals;

    uint256 public buyTax = 30;
    uint256 public sellTax = 30;
    uint256 public maxTransactionTax = 6;

    uint256 public marketingETHPct = 23;
    uint256 public devETHPct = 23;
    uint256 public lpETHPct = 11;
    uint256 public rewardsETHPct = 43;

    uint256 public marketingPct = 17;
    uint256 public devPct = 16;
    uint256 public burnPct = 16;
    uint256 public lpPct = 17;
    uint256 public rewardsPct = 34;
    uint256 public maxPct = 100;

    uint256 public maxWalletSize = (_tTotal * 3) / maxPct;

    IUniswapV2Router02 public _uniswapV2Router;
    address public uniswapV2Pair;
    bool public inSwapAndLiquify;

    event SwapAndLiquify(
        uint256 tokensSwapped,
        uint256 ethReceived,
        uint256 tokensIntoLiqudity
    );

    event UpdateLpWallet(address newLp_, address oldLpWallet);
    event TaxThresholdChanged(uint256 tokenAmount);
    event MaxWalletChanged(uint256 maxWalletSize);    
    event UpdatedBuyTax(uint256 buyTax);
    event UpdatedSellTax(uint256 sellTax);
    event UpdatedPercentTaxes(uint256 marketing, uint256 dev, uint256 lp, uint256 rewards, uint256 burn);
    event UpdatedPercentTaxesETH(uint256 marketing, uint256 dev, uint256 lp, uint256 rewards);
    event UpdatedIsExcludedFromFee(address account, bool flag);
    event UpdatedIsExcludedFromMaxWallet(address account, bool flag);
    event UpdatedProjectWallets(address marketing, address dev, address rewards);

    modifier lockTheSwap() {
        inSwapAndLiquify = true;
        _;
        inSwapAndLiquify = false;
    }

    constructor(address lpWalletAddress) {
        _tOwned[owner()] = _tTotal;

        _uniswapV2Router = IUniswapV2Router02(uniswapRouterAddress);
        uniswapV2Pair = IUniswapV2Factory(_uniswapV2Router.factory())
            .createPair(address(this), _uniswapV2Router.WETH());

        lpWallet = payable(lpWalletAddress);

        isExcludedFromFee[owner()] = true;
        isExcludedFromFee[address(this)] = true;
        isExcludedFromFee[marketingWallet] = true;
        isExcludedFromFee[devWallet] = true;
        isExcludedFromFee[rewardsWallet] = true;
        isExcludedFromFee[burnWallet] = true;
        isExcludedFromFee[lpWallet] = true;
        isExcludedFromFee[uniswapRouterAddress] = true;

        isExcludedFromMaxWalletToken[uniswapRouterAddress] = true;
        isExcludedFromMaxWalletToken[owner()] = true;
        isExcludedFromMaxWalletToken[address(this)] = true;
        isExcludedFromMaxWalletToken[marketingWallet] = true;
        isExcludedFromMaxWalletToken[devWallet] = true;
        isExcludedFromMaxWalletToken[rewardsWallet] = true;
        isExcludedFromMaxWalletToken[burnWallet] = true;
        isExcludedFromMaxWalletToken[lpWallet] = true;
        isExcludedFromMaxWalletToken[uniswapV2Pair] = true;

        emit Transfer(address(0), owner(), _tTotal);
    }

    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 totalSupply() public view override returns (uint256) {
        return _tTotal;
    }

    function balanceOf(address account) public view override returns (uint256) {
        return _tOwned[account];
    }

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

    function allowance(address theOwner, address theSpender)
        public
        view
        override
        returns (uint256)
    {
        return _allowances[theOwner][theSpender];
    }

    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;
    }

    receive() external payable {}

    function _approve(
        address theOwner,
        address theSpender,
        uint256 amount
    ) private {
        require(
            theOwner != address(0) && theSpender != address(0),
            "Zero address."
        );
        _allowances[theOwner][theSpender] = amount;
        emit Approval(theOwner, theSpender, amount);
    }

    function setLpWallet(address newLp_) external onlyOwner {
        require(newLp_ != address(0), "TTF::Lp wallet cannot be zero address");

        address oldLpWallet = lpWallet;
        lpWallet = payable(newLp_);

        emit UpdateLpWallet(newLp_, oldLpWallet);
    }

    function setBuyTax(
        uint256 buy
    ) public onlyOwner {
        require(buy <= maxTransactionTax, "Buy tax cannot exceed the maximum.");        
        buyTax = buy;
        emit UpdatedBuyTax(buy);
    }

    function setSellTax(
        uint256 sell
    ) public onlyOwner {
        require(sell <= maxTransactionTax, "Sell tax cannot exceed the maximum.");
        sellTax = sell;
        emit UpdatedSellTax(sell);
    }    

    function setPercentTaxETH(
        uint256 marketing,
        uint256 dev,
        uint256 lp,
        uint256 rewards
    ) public onlyOwner {
        require(marketing + dev + lp == maxPct, "The sum of percentages must equal 100.");
        marketingETHPct = marketing;
        devETHPct = dev;
        lpETHPct = lp;
        rewardsETHPct = rewards;

        emit UpdatedPercentTaxesETH(marketing, dev,lp, rewards);
    }

    function setPercentTax(
        uint256 marketing,
        uint256 dev,
        uint256 lp,
        uint256 rewards,
        uint256 burn
    ) public onlyOwner {
        require(marketing + dev + lp == maxPct, "The sum of percentages must equal 100.");
        marketingPct = marketing;
        devPct = dev;
        lpPct = lp;
        rewardsPct = rewards;
        burnPct = burn;

        emit UpdatedPercentTaxes(marketing, dev,lp, rewards, burn);
    }
    function excludeFromFee(address account) external onlyOwner {
        isExcludedFromFee[account] = true;
        emit UpdatedIsExcludedFromFee(account, true);
    }

    function includeInFee(address account) external onlyOwner {
        isExcludedFromFee[account] = false;
        emit UpdatedIsExcludedFromFee(account, false);
    }

	function excludeMaxWallet(address account) external onlyOwner {
        isExcludedFromMaxWalletToken[account] = true;
        emit UpdatedIsExcludedFromMaxWallet(account, true);
    }

    function includeMaxWallet(address account) external onlyOwner {
        isExcludedFromMaxWalletToken[account] = false;
        emit UpdatedIsExcludedFromMaxWallet(account, false);
    }

    function setWallets(
        address marketing,
        address dev,
        address rewards
    ) public onlyOwner {
        require(marketing != address(0) && dev != address(0) && rewards != address(0), "Invalid wallet addresses.");
        require(payable(marketing).send(0) && payable(dev).send(0) && payable(rewards).send(0), "All wallets need to be payable");

        isExcludedFromFee[marketingWallet] = false;
        isExcludedFromFee[devWallet] = false;
        isExcludedFromFee[rewardsWallet] = false;

        marketingWallet = payable(marketing);
        devWallet = payable(dev);
        rewardsWallet = payable(rewards);

        isExcludedFromFee[marketing] = true;
        isExcludedFromFee[dev] = true;
        isExcludedFromFee[rewards] = true;

        emit UpdatedProjectWallets(marketing, dev, rewards);
    }

    function _transfer(
        address from,
        address to,
        uint256 amount
    ) private {
        if (!isExcludedFromMaxWalletToken[to]) {
            uint256 heldTokens = balanceOf(to);
            require(
                (heldTokens + amount) <= maxWalletSize,
                "Over wallet limit."
            );
        }

        require(
            from != address(0) && to != address(0),
            "Using 0 address!"
        );

        require(amount > 0, "Token value must be higher than zero.");

        if (
            balanceOf(address(this)) >= swapMinTokens &&
            !inSwapAndLiquify &&
            from != uniswapV2Pair
        ) {
            swapAndDistributeTaxes();
        }

        _tokenTransfer(from, to, amount);
    }

    function _sendToWallet(address payable wallet, uint256 amount) private {
        wallet.transfer(amount);
    }

    function setSwapMinTokens(uint256 minTokens) external onlyOwner {
        swapMinTokens = minTokens * 10**decimals();
        require(swapMinTokens < totalSupply(), "Min tokens for swap is too high.");
        emit TaxThresholdChanged(swapMinTokens);
    }

    function setMaxWalletTreshold(uint256 percentage) external onlyOwner {
        maxWalletSize = (_tTotal * percentage) / maxPct;
        require(maxWalletSize <= totalSupply(), "Max wallet can't exceed total supply");
        require(maxWalletSize > _tTotal / 1000, "Max wallet can't be smaller than 0.1");
        emit MaxWalletChanged(maxWalletSize);
    }

    function swapAndDistributeTaxes() private lockTheSwap {
        uint256 contractTokenBalance = balanceOf(address(this));
        uint256 marketingTokensShare = (contractTokenBalance * marketingPct) / maxPct;
        uint256 devTokensShare = (contractTokenBalance * devPct) / maxPct;
        uint256 rewardsTokensShare = (contractTokenBalance * rewardsPct) / maxPct;
        uint256 burnTokensShare = (contractTokenBalance * burnPct) / maxPct;
        uint256 lpTokensHalfShare = (contractTokenBalance * lpPct) / (2 * maxPct);
        
        swapTokensForBNB(lpTokensHalfShare + marketingTokensShare + devTokensShare + rewardsTokensShare);
        uint256 bnbReceived = address(this).balance;
        uint256 bnbToMarketing = (bnbReceived * marketingETHPct) / maxPct;
        uint256 bnbToDev = (bnbReceived * devETHPct) / maxPct;
        uint256 bnbToRewards = (bnbReceived * rewardsETHPct) / maxPct;

        addLiquidity(lpTokensHalfShare, (bnbReceived - bnbToMarketing - bnbToDev - bnbToRewards));
        emit SwapAndLiquify(
            lpTokensHalfShare,
            (bnbReceived - bnbToMarketing - bnbToDev - bnbToRewards),
            lpTokensHalfShare
        );

        _transfer(address(this), burnWallet, burnTokensShare);
        _sendToWallet(rewardsWallet, bnbToRewards);
        _sendToWallet(marketingWallet, bnbToMarketing);
        _sendToWallet(devWallet, address(this).balance);
    }

    function swapTokensForBNB(uint256 tokenAmount) private {
        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 addLiquidity(uint256 tokenAmount, uint256 BNBAmount) private {
        _approve(address(this), address(_uniswapV2Router), tokenAmount);
        _uniswapV2Router.addLiquidityETH{value: BNBAmount}(
            address(this),
            tokenAmount,
            0,
            0,
            burnWallet,
            block.timestamp
        );
    }

    function rescueAnyToken(address tokenToRescue, uint256 percent) external onlyOwner() {
        IERC20(tokenToRescue).transfer(msg.sender, IERC20(tokenToRescue).balanceOf(address(this)) * percent / 100);
    }

    function rescueBnb() external onlyOwner {
        (bool success,) = address(owner()).call{value: address(this).balance}("");
        require(success, "failed");        
    }

    function _tokenTransfer(
        address from,
        address to,
        uint256 tAmount
    ) private {
        bool isBuy = (from == uniswapV2Pair);
        bool isSell = (to == uniswapV2Pair);
        bool isBuyOrSell = isBuy || isSell;
        bool takeFee = isBuyOrSell && !(isExcludedFromFee[from] || isExcludedFromFee[to]);

        uint256 fee = !takeFee
            ? 0
            : isBuy
                ? (tAmount * buyTax) / maxPct
                : (tAmount * sellTax) / maxPct;
        uint256 tTransferAmount = tAmount - fee;

        _tOwned[from] = _tOwned[from] - tAmount;
        _tOwned[to] = _tOwned[to] + tTransferAmount;
        _tOwned[address(this)] = _tOwned[address(this)] + fee;
        emit Transfer(from, to, tTransferAmount);
    }
}

{
  "compilationTarget": {
    "EarnSphere.sol": "EarnSphere"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}