Contract Source Code:

// File: @openzeppelin/contracts/utils/Context.sol


// 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;
    }
}

// File: @openzeppelin/contracts/access/Ownable.sol


// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;


/**
 * @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);
    }
}

// File: @openzeppelin/contracts/utils/math/SafeMath.sol


// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/SafeMath.sol)

pragma solidity ^0.8.0;

// CAUTION
// This version of SafeMath should only be used with Solidity 0.8 or later,
// because it relies on the compiler's built in overflow checks.

/**
 * @dev Wrappers over Solidity's arithmetic operations.
 *
 * NOTE: `SafeMath` is generally not needed starting with Solidity 0.8, since the compiler
 * now has built in overflow checking.
 */
library SafeMath {
    /**
     * @dev Returns the addition of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryAdd(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            uint256 c = a + b;
            if (c < a) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function trySub(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b > a) return (false, 0);
            return (true, a - b);
        }
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, with an overflow flag.
     *
     * _Available since v3.4._
     */
    function tryMul(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
            // benefit is lost if 'b' is also tested.
            // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
            if (a == 0) return (true, 0);
            uint256 c = a * b;
            if (c / a != b) return (false, 0);
            return (true, c);
        }
    }

    /**
     * @dev Returns the division of two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryDiv(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a / b);
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers, with a division by zero flag.
     *
     * _Available since v3.4._
     */
    function tryMod(uint256 a, uint256 b) internal pure returns (bool, uint256) {
        unchecked {
            if (b == 0) return (false, 0);
            return (true, a % b);
        }
    }

    /**
     * @dev Returns the addition of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `+` operator.
     *
     * Requirements:
     *
     * - Addition cannot overflow.
     */
    function add(uint256 a, uint256 b) internal pure returns (uint256) {
        return a + b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting on
     * overflow (when the result is negative).
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b) internal pure returns (uint256) {
        return a - b;
    }

    /**
     * @dev Returns the multiplication of two unsigned integers, reverting on
     * overflow.
     *
     * Counterpart to Solidity's `*` operator.
     *
     * Requirements:
     *
     * - Multiplication cannot overflow.
     */
    function mul(uint256 a, uint256 b) internal pure returns (uint256) {
        return a * b;
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator.
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b) internal pure returns (uint256) {
        return a / b;
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting when dividing by zero.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b) internal pure returns (uint256) {
        return a % b;
    }

    /**
     * @dev Returns the subtraction of two unsigned integers, reverting with custom message on
     * overflow (when the result is negative).
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {trySub}.
     *
     * Counterpart to Solidity's `-` operator.
     *
     * Requirements:
     *
     * - Subtraction cannot overflow.
     */
    function sub(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b <= a, errorMessage);
            return a - b;
        }
    }

    /**
     * @dev Returns the integer division of two unsigned integers, reverting with custom message on
     * division by zero. The result is rounded towards zero.
     *
     * Counterpart to Solidity's `/` operator. Note: this function uses a
     * `revert` opcode (which leaves remaining gas untouched) while Solidity
     * uses an invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function div(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a / b;
        }
    }

    /**
     * @dev Returns the remainder of dividing two unsigned integers. (unsigned integer modulo),
     * reverting with custom message when dividing by zero.
     *
     * CAUTION: This function is deprecated because it requires allocating memory for the error
     * message unnecessarily. For custom revert reasons use {tryMod}.
     *
     * Counterpart to Solidity's `%` operator. This function uses a `revert`
     * opcode (which leaves remaining gas untouched) while Solidity uses an
     * invalid opcode to revert (consuming all remaining gas).
     *
     * Requirements:
     *
     * - The divisor cannot be zero.
     */
    function mod(uint256 a, uint256 b, string memory errorMessage) internal pure returns (uint256) {
        unchecked {
            require(b > 0, errorMessage);
            return a % b;
        }
    }
}

// File: infinitesonicglitch.sol


pragma solidity ^0.8.20;



contract InfiniteSonicGlitch is Ownable {
    using SafeMath for uint256;

    string public constant name = "Infinite Sonic Glitch";
    string public constant symbol = "ISG";
    uint8 public constant decimals = 18;
    uint256 public constant totalSupply = 100000000 * 10 ** 18; // 100M ISG, fixed supply

    mapping(address => uint256) private _balances;
    mapping(address => mapping(address => uint256)) private _allowances;

    // Tax variables
    uint256 public buyTaxFee = 4; // 4% tax in $S before buy
    uint256 public sellTaxFee = 4; // 4% tax in $S after sell
    uint256 public constant TAX_DENOMINATOR = 100;

    // Special wallets
    address public immutable marketingWallet;
    address public immutable developmentWallet;
    address public immutable liquidityWallet;
    address public immutable burnWallet;
    address public immutable ownerWallet;

    // Tax distribution percentages
    uint256 public constant REWARD_SHARE = 50;
    uint256 public constant MARKETING_SHARE = 15;
    uint256 public constant DEVELOPMENT_SHARE = 10;
    uint256 public constant LIQUIDITY_SHARE = 10;
    uint256 public constant BURN_SHARE = 10;
    uint256 public constant OWNER_SHARE = 5;

    // Staking variables
    mapping(address => uint256) public stakedBalances;
    mapping(address => uint256) public stakingStartTime;
    mapping(address => uint256) public accumulatedStakingRewards; // $S rewards accrued daily for stakers
    uint256 public totalStaked;
    uint256 public stakingPeriod = 7 days;
    uint256 public constant STAKING_BOOST = 2; // 2x rewards for stakers

    // Reward variables
    uint256 public rewardPool; // $S pool for rewards
    uint256 public lastRewardDistribution;
    uint256 public constant REWARD_INTERVAL = 24 hours;

    // Holder tracking for rewards (only non-staked holders)
    address[] public holders;
    mapping(address => uint256) public holderIndex;
    mapping(address => bool) public isHolder;
    uint256 public totalEligibleSupply; // Total unstaked ISG held by eligible holders

    // Trading control
    bool public tradingEnabled;

    event Transfer(address indexed from, address indexed to, uint256 value);
    event Approval(address indexed owner, address indexed spender, uint256 value);
    event Staked(address indexed user, uint256 amount);
    event Unstaked(address indexed user, uint256 amount, uint256 reward);
    event RewardDistributed(address indexed user, uint256 reward);
    event TaxCollected(address indexed user, uint256 amount, bool isBuy);
    event TradingEnabled();
    event HolderAdded(address indexed holder);
    event HolderRemoved(address indexed holder);

    constructor(
        address _marketingWallet,
        address _developmentWallet,
        address _liquidityWallet,
        address _burnWallet
    ) Ownable(msg.sender) { // Initialize Ownable with deployer as initial owner
        require(_marketingWallet != address(0), "Invalid marketing wallet");
        require(_developmentWallet != address(0), "Invalid development wallet");
        require(_liquidityWallet != address(0), "Invalid liquidity wallet");
        require(_burnWallet != address(0), "Invalid burn wallet");

        _balances[msg.sender] = totalSupply;
        marketingWallet = _marketingWallet;
        developmentWallet = _developmentWallet;
        liquidityWallet = _liquidityWallet;
        burnWallet = _burnWallet;
        ownerWallet = msg.sender; // Set ownerWallet to deployer, consistent with Ownable
        lastRewardDistribution = block.timestamp;

        if (!isExcluded(msg.sender)) {
            holders.push(msg.sender);
            holderIndex[msg.sender] = 0;
            isHolder[msg.sender] = true;
            totalEligibleSupply = totalSupply;
        }

        emit Transfer(address(0), msg.sender, totalSupply);
    }

    // Basic ERC-20 functions
    function balanceOf(address account) external view returns (uint256) {
        return _balances[account];
    }

    function transfer(address recipient, uint256 amount) external returns (bool) {
        require(tradingEnabled || msg.sender == owner(), "Trading not enabled");
        _transfer(msg.sender, recipient, amount);
        return true;
    }

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

    function transferFrom(address sender, address recipient, uint256 amount) external returns (bool) {
        require(tradingEnabled || msg.sender == owner(), "Trading not enabled");
        _transfer(sender, recipient, amount);
        uint256 currentAllowance = _allowances[sender][msg.sender];
        require(currentAllowance >= amount, "Insufficient allowance");
        _approve(sender, msg.sender, currentAllowance - amount);
        return true;
    }

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

    function _transfer(address sender, address recipient, uint256 amount) internal {
        require(sender != address(0), "Transfer from zero address");
        require(recipient != address(0), "Transfer to zero address");
        require(_balances[sender] >= amount, "Insufficient balance");

        _balances[sender] -= amount;
        _balances[recipient] += amount;

        updateHolderList(sender, recipient);

        emit Transfer(sender, recipient, amount);
    }

    function _approve(address owner, address spender, uint256 amount) internal {
        require(owner != address(0), "Approve from zero address");
        require(spender != address(0), "Approve to zero address");
        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    // Check if an address is excluded from taxes and rewards
    function isExcluded(address account) public view returns (bool) {
        return account == marketingWallet ||
               account == developmentWallet ||
               account == liquidityWallet ||
               account == burnWallet ||
               account == ownerWallet;
    }

    // Update holder list (only tracks unstaked balances for daily rewards)
    function updateHolderList(address sender, address recipient) internal {
        bool senderExcluded = isExcluded(sender);
        bool recipientExcluded = isExcluded(recipient);

        if (!senderExcluded) {
            uint256 senderBalance = _balances[sender];
            if (senderBalance == 0 && stakedBalances[sender] == 0 && isHolder[sender]) {
                totalEligibleSupply = totalEligibleSupply.sub(_balances[sender]);
                removeHolder(sender);
            } else if (senderBalance > 0 && !isHolder[sender] && stakedBalances[sender] == 0) {
                addHolder(sender);
                totalEligibleSupply = totalEligibleSupply.add(senderBalance);
            } else if (isHolder[sender] && stakedBalances[sender] == 0) {
                totalEligibleSupply = totalEligibleSupply.sub(_balances[sender]).add(senderBalance);
            } else if (isHolder[sender] && stakedBalances[sender] > 0) {
                totalEligibleSupply = totalEligibleSupply.sub(_balances[sender]);
                removeHolder(sender);
            }
        }

        if (!recipientExcluded) {
            uint256 recipientBalance = _balances[recipient];
            if (recipientBalance > 0 && !isHolder[recipient] && stakedBalances[recipient] == 0) {
                addHolder(recipient);
                totalEligibleSupply = totalEligibleSupply.add(recipientBalance);
            } else if (isHolder[recipient] && stakedBalances[recipient] == 0) {
                totalEligibleSupply = totalEligibleSupply.sub(_balances[recipient]).add(recipientBalance);
            } else if (isHolder[recipient] && stakedBalances[recipient] > 0) {
                totalEligibleSupply = totalEligibleSupply.sub(_balances[recipient]);
                removeHolder(recipient);
            }
        }
    }

    function addHolder(address holder) internal {
        holders.push(holder);
        holderIndex[holder] = holders.length - 1;
        isHolder[holder] = true;
        emit HolderAdded(holder);
    }

    function removeHolder(address holder) internal {
        uint256 index = holderIndex[holder];
        address lastHolder = holders[holders.length - 1];
        holders[index] = lastHolder;
        holderIndex[lastHolder] = index;
        holders.pop();
        delete holderIndex[holder];
        isHolder[holder] = false;
        emit HolderRemoved(holder);
    }

    // Tax collection
    function collectBuyTax(uint256 isgAmount) external payable {
        require(!isExcluded(msg.sender), "Excluded wallet cannot pay tax");
        uint256 taxAmount = isgAmount.mul(buyTaxFee).div(TAX_DENOMINATOR);
        require(msg.value >= taxAmount, "Insufficient $S for buy tax");
        _distributeTax(msg.value);
        emit TaxCollected(msg.sender, msg.value, true);
    }

    function collectSellTax(uint256 isgAmount) external payable {
        require(!isExcluded(msg.sender), "Excluded wallet cannot pay tax");
        uint256 taxAmount = isgAmount.mul(sellTaxFee).div(TAX_DENOMINATOR);
        require(msg.value >= taxAmount, "Insufficient $S for sell tax");
        _distributeTax(msg.value);
        emit TaxCollected(msg.sender, msg.value, false);
    }

    function _distributeTax(uint256 taxAmount) internal {
        uint256 rewardShare = taxAmount.mul(REWARD_SHARE).div(TAX_DENOMINATOR);
        uint256 marketingShare = taxAmount.mul(MARKETING_SHARE).div(TAX_DENOMINATOR);
        uint256 devShare = taxAmount.mul(DEVELOPMENT_SHARE).div(TAX_DENOMINATOR);
        uint256 liqShare = taxAmount.mul(LIQUIDITY_SHARE).div(TAX_DENOMINATOR);
        uint256 burnShare = taxAmount.mul(BURN_SHARE).div(TAX_DENOMINATOR);
        uint256 ownerShare = taxAmount.mul(OWNER_SHARE).div(TAX_DENOMINATOR);

        rewardPool += rewardShare;
        _safeTransfer(marketingWallet, marketingShare);
        _safeTransfer(developmentWallet, devShare);
        _safeTransfer(liquidityWallet, liqShare);
        _safeTransfer(burnWallet, burnShare);
        _safeTransfer(ownerWallet, ownerShare);
    }

    // Staking functions
    function stake(uint256 amount) external {
        require(tradingEnabled || msg.sender == owner(), "Trading not enabled");
        require(amount > 0, "Cannot stake 0");
        require(_balances[msg.sender] >= amount, "Insufficient balance");

        _transfer(msg.sender, address(this), amount);
        stakedBalances[msg.sender] += amount;
        totalStaked += amount;
        if (stakingStartTime[msg.sender] == 0) stakingStartTime[msg.sender] = block.timestamp;
        emit Staked(msg.sender, amount);
    }

    function unstake(uint256 amount) external {
        require(amount > 0, "Cannot unstake 0");
        require(stakedBalances[msg.sender] >= amount, "Insufficient staked balance");
        require(block.timestamp >= stakingStartTime[msg.sender] + stakingPeriod, "Staking period not completed");

        uint256 reward = accumulatedStakingRewards[msg.sender];
        stakedBalances[msg.sender] -= amount;
        totalStaked -= amount;
        if (stakedBalances[msg.sender] == 0) {
            stakingStartTime[msg.sender] = 0;
            accumulatedStakingRewards[msg.sender] = 0; // Reset rewards if fully unstaked
        }
        _balances[msg.sender] += amount;

        if (reward > 0 && !isExcluded(msg.sender)) {
            _safeTransfer(msg.sender, reward);
            emit RewardDistributed(msg.sender, reward);
        }

        updateHolderList(msg.sender, address(this));
        emit Unstaked(msg.sender, amount, reward);
        emit Transfer(address(this), msg.sender, amount);
    }

    // Reward distribution
    function distributeRewards() external {
        require(block.timestamp >= lastRewardDistribution + REWARD_INTERVAL, "24 hours not passed");
        require(rewardPool > 0, "No $S to distribute");

        uint256 totalReward = rewardPool;
        uint256 totalWeightedSupply = totalEligibleSupply + (totalStaked * STAKING_BOOST); // Stakers get 2x weight

        if (totalWeightedSupply == 0) {
            lastRewardDistribution = block.timestamp;
            return; // No eligible holders or stakers
        }

        // Distribute to non-staked holders
        for (uint256 i = 0; i < holders.length; i++) {
            address holder = holders[i];
            uint256 balance = _balances[holder];
            if (balance > 0) {
                uint256 holderReward = balance.mul(totalReward).div(totalWeightedSupply);
                if (holderReward > 0 && rewardPool >= holderReward) {
                    rewardPool -= holderReward;
                    _safeTransfer(holder, holderReward);
                    emit RewardDistributed(holder, holderReward);
                }
            }
        }

        // Calculate and reserve staking rewards
        for (uint256 i = 0; i < holders.length; i++) {
            address holder = holders[i];
            uint256 stakedBalance = stakedBalances[holder];
            if (stakedBalance > 0 && !isExcluded(holder)) {
                uint256 stakerReward = stakedBalance.mul(STAKING_BOOST).mul(totalReward).div(totalWeightedSupply);
                if (stakerReward > 0 && rewardPool >= stakerReward) {
                    rewardPool -= stakerReward;
                    accumulatedStakingRewards[holder] += stakerReward;
                }
            }
        }

        lastRewardDistribution = block.timestamp;
    }

    // Safe $S transfer
    function _safeTransfer(address to, uint256 amount) internal {
        (bool success, ) = to.call{value: amount}("");
        require(success, "Transfer failed");
    }

    // Owner functions
    function enableTrading() external onlyOwner {
        require(!tradingEnabled, "Trading already enabled");
        tradingEnabled = true;
        emit TradingEnabled();
    }

    function setTaxFees(uint256 newBuyFee, uint256 newSellFee) external onlyOwner {
        require(newBuyFee <= 10 && newSellFee <= 10, "Tax fee too high");
        buyTaxFee = newBuyFee;
        sellTaxFee = newSellFee;
    }

    function setStakingPeriod(uint256 newPeriod) external onlyOwner {
        require(newPeriod >= 1 days, "Staking period too short");
        stakingPeriod = newPeriod;
    }

    receive() external payable {
        rewardPool += msg.value;
    }

    function getHolderCount() external view returns (uint256) {
        return holders.length;
    }

    // View accumulated staking rewards
    function getAccumulatedStakingRewards(address account) external view returns (uint256) {
        return accumulatedStakingRewards[account];
    }
}