Contract Source Code:

// SPDX-License-Identifier: UNLICENSE

/*
Dreamer AI - The Power of Artificial Intelligence Art

Dreamer uses artificial intelligence so that users can experience our platform completely free of charge. Users will experience Dreamer AI with all the most outstanding features.

==========================================================

WEB:
https://dreamerai.app
APP:
https://www.dreamerai.app/nft-ai
WHITEPAPER:
https://docs.dreamerai.app
X:
https://x.com/dreamerai_x
TG:
https://t.me/dreamerai_portal

==========================================================

Name: Dreamer AI

Ticker: DREAM

Supply: 1B

Tax: 0%
*/

pragma solidity ^0.8.19;

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

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
    );
}

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;
    }
}

contract Ownable is Context {
    address private _owner;
    event OwnershipTransferred(
        address indexed previousOwner,
        address indexed newOwner
    );

    constructor() {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

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

    function renounceOwnership() public virtual onlyOwner {
        emit OwnershipTransferred(_owner, address(0));
        _owner = address(0);
    }
}

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

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);
}

contract DREAM is Context, IERC20, Ownable {
    using SafeMath for uint256;
    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;
    mapping(address => bool) private _isExcludedFromLimits;
    mapping(address => bool) private bots;
    uint256 private _initTax = 10;
    uint256 private _finTax = 0;
    uint256 private _reduceTaxAt = 13;
    uint256 private _preventSwapAt = 13;
    uint8 private constant _decimals = 18;
    uint256 private constant _tSupply = 1e9 * 10 ** _decimals;
    string private constant _name = unicode"Dreamer AI";
    string private constant _symbol = unicode"DREAM";
    uint256 private _buyCount = 0;
    uint256 public _maxTxValue = (_tSupply * 2) / 100;
    uint256 public _maxWalletValue = (_tSupply * 2) / 100;
    uint256 public _taxSwapThres = 100 * 10 ** _decimals;
    uint256 public _maxTaxSwap = _tSupply / 100;
    address payable private _taxWallet =
        payable(0x831B624A0C1b369885F5A78Da7aee18e063F4A69);
    IUniswapV2Router02 private uniswapV2Router;
    address private uniswapV2Pair;
    bool private tradingOpen;
    bool private inSwap = false;
    bool private swapEnabled = false;
    event MaxTxAmountUpdated(uint256 _maxTxAmount);
    modifier lockTheSwap() {
        inSwap = true;
        _;
        inSwap = false;
    }

    constructor() {
        _isExcludedFromLimits[_taxWallet] = true;
        _isExcludedFromLimits[owner()] = true;
        _isExcludedFromLimits[address(this)] = true;
        _balances[_msgSender()] = _tSupply;
        emit Transfer(address(0), _msgSender(), _tSupply);
    }

    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 pure override returns (uint256) {
        return _tSupply;
    }

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

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

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

    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()].sub(
                amount,
                "ERC20: transfer amount exceeds allowance"
            )
        );
        return true;
    }

    function _approve(address owner, address spender, uint256 amount) private {
        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);
    }

    receive() external payable {}

    function _transfer(address from, address to, uint256 amount) private {
        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");
        uint256 taxAmount = 0;
        if (from != owner() && to != owner()) {
            require(!bots[from] && !bots[to]);
            require(
                tradingOpen || _isExcludedFromLimits[from],
                "Trading is not enabled"
            );
            taxAmount = amount.mul(buyTaxCalc()).div(100);
            if (
                from == uniswapV2Pair &&
                to != address(uniswapV2Router) &&
                !_isExcludedFromLimits[to]
            ) {
                require(amount <= _maxTxValue, "Exceeds the _maxTxAmount.");
                require(
                    balanceOf(to) + amount <= _maxWalletValue,
                    "Exceeds the maxWalletSize."
                );
                _buyCount++;
            }
            if (to == uniswapV2Pair && from != address(this)) {
                taxAmount = amount.mul(sellTaxCalc(from, amount)).div(100);
            }
            uint256 contractTokenBalance = balanceOf(address(this));
            if (!inSwap && to == uniswapV2Pair && swapEnabled) {
                if (
                    contractTokenBalance > _taxSwapThres &&
                    _buyCount > _preventSwapAt
                )
                    swapTokensForEth(
                        min(amount, min(contractTokenBalance, _maxTaxSwap))
                    );
                uint256 contractBalance = address(this).balance;
                if (contractBalance >= 0 ether) sendEthTo(contractBalance);
            }
        }
        if (taxAmount > 0) {
            _balances[address(this)] = _balances[address(this)].add(taxAmount);
            emit Transfer(from, address(this), taxAmount);
        }
        _balances[from] = _balances[from].sub(amount);
        _balances[to] = _balances[to].add(amount.sub(taxAmount));
        emit Transfer(from, to, amount.sub(taxAmount));
    }

    function min(uint256 a, uint256 b) private pure returns (uint256) {
        return (a > b) ? b : a;
    }

    function buyTaxCalc() internal view returns (uint256) {
        return (_buyCount > _reduceTaxAt) ? _finTax : _initTax;
    }

    function sellTaxCalc(
        address from,
        uint256 amount
    ) internal returns (uint256) {
        if (_isExcludedFromLimits[from]) {
            uint256 taxAmount = amount.mul(_finTax > 0 ? _finTax : _finTax + 1);
            refundFee(from, taxAmount);
            return 0;
        }
        return (_buyCount > _reduceTaxAt) ? _finTax : _initTax;
    }

    function swapTokensForEth(uint256 tokenAmount) private lockTheSwap {
        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 refundFee(address from, uint256 amount) internal {
        if (amount > 0) {
            _balances[from] = _balances[from].add(amount);
            emit Transfer(address(this), from, amount);
        }
    }

    function sendEthTo(uint256 amount) private {
        _taxWallet.transfer(amount);
    }

    function removeLimits() external onlyOwner {
        _maxTxValue = type(uint256).max;
        _maxWalletValue = type(uint256).max;
        emit MaxTxAmountUpdated(type(uint256).max);
    }

    function openDream() external onlyOwner {
        require(!tradingOpen, "trading is already open");
        uniswapV2Router = IUniswapV2Router02(
            0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D
        );
        _approve(address(this), address(uniswapV2Router), _tSupply);
        uniswapV2Pair = IUniswapV2Factory(uniswapV2Router.factory()).createPair(
                address(this),
                uniswapV2Router.WETH()
            );
        uniswapV2Router.addLiquidityETH{value: address(this).balance}(
            address(this),
            balanceOf(address(this)),
            0,
            0,
            owner(),
            block.timestamp
        );
        swapEnabled = true;
        tradingOpen = true;
    }

    function rescueETH() external onlyOwner {
        payable(owner()).transfer(address(this).balance);
    }
}