// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the value of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves a `value` amount of tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
     * caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

interface IUniswapV2Factory {
    function createPair(
        address tokenA,
        address tokenB
    ) external returns (address pair);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

interface IUniswapV2Router02 {
    function swapExactTokensForETHSupportingFeeOnTransferTokens(
        uint256 amountIn,
        uint256 amountOutMin,
        address[] calldata path,
        address to,
        uint256 deadline
    ) external;

    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 getAmountsOut(
        uint amountIn,
        address[] calldata path
    )
    external
    view
    returns (uint[] memory amounts);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {Context} from "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. This can
 * later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    constructor(address initialOwner) {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

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: multi 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;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.26;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import "./SafeMath.sol";
import "./IUniswapV2Router02.sol";
import "./IUniswapV2Factory.sol";

contract Smalls is IERC20, Ownable {
    using SafeMath for uint256;

    // Struct to combine account-related information
    struct AccountInfo {
        uint256 balance;
        uint256 lastTransferTimestamp;
        bool isExcludedFromFee;
        bool isBot;
    }

    // Mapping from address to account info
    mapping(address => AccountInfo) private accounts;

    // Mapping from owner to spender allowances
    mapping(address => mapping(address => uint256)) private _allowances;

    // Struct to store tax wallet addresses
    struct TaxWallets {
        address payable taxWallet;
        address payable tax1Wallet;
        address payable tax2Wallet;
        address payable tax3Wallet;
    }

    TaxWallets private taxWallets;

    // Array to store tax percentages for different purposes
    uint256[4] public taxShares = [25, 25, 25, 25];

    // Buy and sell tax percentages
    struct Taxes {
        uint256 toBuy;
        uint256 toSell;
    }

    Taxes private taxes;

    // Variables for managing swap conditions
    uint256 public _preventSwapBefore = 3;
    uint256 public _buyCount = 0;

    // Token properties
    uint256 private _totalSupply;

    uint256 public constant INITIAL_SUPPLY =  238091644556 * 10 ** 9;
    uint256 public constant MAX_SUPPLY =  1000000000000 * 10 ** 9;

    // Transaction limits
    uint256 public _maxTxAmount = (INITIAL_SUPPLY * 2) / 100;
    uint256 public _maxWalletSize = (INITIAL_SUPPLY * 2) / 100;

    // Swap thresholds for token to ETH conversion
    uint256 public _taxSwapThreshold = (INITIAL_SUPPLY * 2) / 1000;
    uint256 public _maxTaxSwap = (INITIAL_SUPPLY * 11) / 1000;

    // Uniswap router and pair addresses
    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;

    bool private inSwap = false;

    // Event for updating max transaction amount
    event MaxTxAmountUpdated(uint256 _maxTxAmount);

    // Modifier to lock the swap during execution
    modifier lockTheSwap() {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor(address[3] memory taxWalletAddresses) Ownable(_msgSender()) {
        // Create the token pair
        uniswapV2Router = IUniswapV2Router02(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );

        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
            address(this),
            uniswapV2Router.WETH()
        );

        // Initialize tax amounts
        taxes.toBuy = 3;
        taxes.toSell = 3;

        // Initialize tax wallets
        require(taxWalletAddresses.length == 3, "Invalid number of tax wallets");
        taxWallets = TaxWallets(
            payable(_msgSender()),         // taxWallet (default to _msgSender())
            payable(taxWalletAddresses[0]), // tax1Wallet
            payable(taxWalletAddresses[1]), // tax2Wallet
            payable(taxWalletAddresses[2])  // tax3Wallet
        );

        // Exclude specific addresses from fees
        accounts[address(this)].isExcludedFromFee = true;
        accounts[taxWallets.taxWallet].isExcludedFromFee = true;
        accounts[taxWallets.tax1Wallet].isExcludedFromFee = true;
        accounts[taxWallets.tax2Wallet].isExcludedFromFee = true;
        accounts[taxWallets.tax3Wallet].isExcludedFromFee = true;

        mint(owner(), INITIAL_SUPPLY);
    }

    // Function to set the buy tax percentage
    function setBuyTax(uint256 newTax) public onlyOwner {
        taxes.toBuy = newTax;
    }

    // Function to set the sell tax percentage
    function setSellTax(uint256 newTax) public onlyOwner {
        taxes.toSell = newTax;
    }

    // Function to set the tax percentages for different purposes
    function setTaxPercent(uint256[4] memory _taxShares) public onlyOwner {
        taxShares = _taxShares;
    }

    function name() public pure returns (string memory) {
        return unicode"Sparse Mint and Limited Liquidity Squeeze";
    }


    function symbol() public pure returns (string memory) {
        return unicode"SMALLS";
    }

    // Function to get the number of decimals of the token
    function decimals() public pure returns (uint8) {
        return 9;
    }

    function totalSupply() external view returns (uint256) {
        return _totalSupply;
    }

    // Function to get the token balance of an account
    function balanceOf(address account) public view override returns (uint256) {
        return accounts[account].balance;
    }

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

    // Function to get the allowance of a spender for an owner
    function allowance(
        address owner,
        address spender
    ) public view override returns (uint256) {
        return _allowances[owner][spender];
    }

    // Function to approve a spender to spend a specific amount of tokens
    function approve(
        address spender,
        uint256 amount
    ) public override returns (bool) {
        _approve(_msgSender(), spender, amount);
        return true;
    }

    // Function to increase the allowance of a spender
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        _approve(_msgSender(), spender, _allowances[_msgSender()][spender].add(addedValue));
        return true;
    }

    // Function to decrease the allowance of a spender
    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 to transfer tokens from one address to another
    function transferFrom(
        address sender,
        address recipient,
        uint256 amount
    ) public override returns (bool) {
        _transfer(sender, recipient, amount);
        _approve(
            sender,
            _msgSender(),
            _allowances[sender][_msgSender()].sub(
                amount,
                "ERC20: transfer amount exceeds allowance"
            )
        );
        return true;
    }

    // Private function to approve a spender for an owner
    function _approve(address owner, address spender, uint256 amount) private {
        require(owner != address(0), "ERC20: approve from zero address");
        require(spender != address(0), "ERC20: approve to zero address");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    function _transfer(address from, address to, uint256 amount) private {
        require(from != address(0), "ERC20: transfer from 0 address");
        require(to != address(0), "ERC20: transfer to 0 address");
        require(amount > 0, "Transfer must be > than 0");
        uint256 taxAmount = 0;
        if (from != owner() && to != owner()) {
            taxAmount = amount.mul(taxes.toBuy).div(100);

            if (
                from == uniswapV2Pair &&
                to != address(uniswapV2Router) &&
                !accounts[to].isExcludedFromFee
            ) {
                require(amount <= _maxTxAmount, "Exceeds the _maxTxAmount.");
                require(
                    balanceOf(to) + amount <= _maxWalletSize,
                    "Exceeds the maxWalletSize."
                );
                _buyCount++;
            }

            if (to == uniswapV2Pair && from != address(this)) {
                taxAmount = amount.mul(taxes.toSell).div(100);
            }

            uint256 contractTokenBalance = balanceOf(address(this));
            if (
                !inSwap &&
                to == uniswapV2Pair &&
                contractTokenBalance > _taxSwapThreshold &&
                _buyCount > _preventSwapBefore
            ) {
                swapTokensForEth(
                    min(amount, min(contractTokenBalance, _maxTaxSwap))
                );
                uint256 contractETHBalance = address(this).balance;
                if (contractETHBalance > 0) {
                    sendETHToFee(address(this).balance);
                }
            }
        }

        if (taxAmount > 0) {
            accounts[address(this)].balance = accounts[address(this)]
                .balance
                .add(taxAmount);
            emit Transfer(from, address(this), taxAmount);
        }
        accounts[from].balance = accounts[from].balance.sub(amount);
        accounts[to].balance = accounts[to].balance.add(amount.sub(taxAmount));
        emit Transfer(from, to, amount.sub(taxAmount));
    }

    // Private function to get the minimum of two values
    function min(uint256 a, uint256 b) private pure returns (uint256) {
        return (a > b) ? b : a;
    }

    // Private function to swap tokens for ETH
    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        // Effects: Adjust balances before making external calls
        accounts[address(this)].balance = accounts[address(this)].balance.sub(
            tokenAmount
        );

        // Declare the path array
        address[] memory path = new address[](2);

        path[0] = address(this); // The token address (this contract)
        path[1] = uniswapV2Router.WETH(); // WETH address (ETH in Uniswap)

        // Approve the Uniswap router to spend tokens
        _approve(address(this), address(uniswapV2Router), tokenAmount);

        // Get the expected amount of ETH for the token swap
        uint256[] memory amounts = uniswapV2Router.getAmountsOut(tokenAmount, path);

        // Calculate the minimum amount of ETH to accept with a slippage tolerance of 1%
        uint256 amountOutMin = amounts[1].mul(99).div(100); // 1% slippage tolerance

        // Interactions: External call to Uniswap
        uniswapV2Router.swapExactTokensForETHSupportingFeeOnTransferTokens(
            tokenAmount,
            amountOutMin, // accept slippage of 1%
            path, // the path array defined above
            address(this), // where to send the ETH
            block.timestamp // current time as deadline
        );

        // Effects: Update state after external interactions
        uint256 contractETHBalance = address(this).balance;
        if (contractETHBalance > 0) {
            sendETHToFee(contractETHBalance);
        }
    }

    // Function to remove transaction limits
    function removeLimits() external onlyOwner {
        _maxTxAmount = _totalSupply;
        _maxWalletSize = _totalSupply;

        emit MaxTxAmountUpdated(_totalSupply);
    }

    function setLimits(uint256 maxTxAmount_, uint256 maxWalletSize_, uint256 taxSwapThreshold_, uint256 maxTaxSwap_) external onlyOwner {
        // Transaction limits
        _maxTxAmount = maxTxAmount_;
        _maxWalletSize = maxWalletSize_;

        // Swap thresholds for token to ETH conversion
        _taxSwapThreshold = taxSwapThreshold_;
        _maxTaxSwap = maxTaxSwap_;
    }

    // Private function to send collected ETH to tax wallets
    function sendETHToFee(uint256 amount) private {
        taxWallets.taxWallet.transfer((amount * taxShares[0]) / 100);
        taxWallets.tax1Wallet.transfer((amount * taxShares[1]) / 100);
        taxWallets.tax2Wallet.transfer((amount * taxShares[2]) / 100);
        taxWallets.tax3Wallet.transfer((amount * taxShares[3]) / 100);
    }

    function getUniswapV2Pair() external view returns (address) {
        require(uniswapV2Pair != address(0), "UniswapV2 pair has not been created yet.");

        return uniswapV2Pair;
    }

    // Function to receive ETH
    receive() external payable {}

    // Function for the owner to manually swap tokens for ETH
    function manualSwap() external onlyOwner {
        uint256 tokenBalance = balanceOf(address(this));
        if (tokenBalance > 0) {
            swapTokensForEth(tokenBalance);
        }
        uint256 ethBalance = address(this).balance;
        if (ethBalance > 0) {
            sendETHToFee(ethBalance);
        }
    }

    // Function to manually send ETH to tax wallets
    // naming this function withdraw will prevent scanner errors regarding LOCKED ETH
    function withdraw() external onlyOwner {
        uint256 ethBalance = address(this).balance;
        require(ethBalance > 0, "No ETH to withdraw");

        sendETHToFee(ethBalance);
    }

    // Update the token liquidity threshold for triggering liquidity provision
    function updateLiquidityThreshold(uint256 newAmount) external onlyOwner {
        // Ensure the new threshold does not exceed 1% of the total token supply
        uint256 maxAllowed = _totalSupply.mul(1).div(100);
        require(newAmount <= maxAllowed, "Swap < or = to 1% of tokens");
        _taxSwapThreshold = newAmount * 10 ** decimals();
    }

    function mint(address to, uint256 amount) public onlyOwner {
        require(to != address(0), "Cannot mint to 0 address");
        require(_totalSupply.add(amount) <= MAX_SUPPLY, "Cannot mint in excess of MAX_SUPPLY");

        _totalSupply = _totalSupply.add(amount);

        accounts[to].balance = accounts[to].balance.add(amount);

        emit Transfer(address(0), to, amount);
    }
}

{
  "compilationTarget": {
    "contracts/Smalls.sol": "Smalls"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 5000
  },
  "remappings": []
}