Contract

Contract Source Code (Solidity Standard Json-Input format)

IDE

• Blockscan IDE
• 🤖 Code ReaderBeta
• Remix IDE

More Options

• Similar
• Sol2Uml
• Submit Audit
• Compare

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import "./interfaces/ILaunchpadFactory.sol";
import {MerkleProof} from "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import {MainLaunchpadInfo} from "./interfaces/ILaunchpadFactory.sol";
import "./constants/Errors.sol";



contract Launchpad {
    using SafeERC20 for IERC20;
    
    event TokensPurchased(address indexed _token, address indexed buyer, uint256 amount);
    event TokensClaimed(address indexed _token, address indexed buyer, uint256 amount);
    event ethPricePerTokenUpdated(address indexed _token, uint256 newEthPricePerToken);
    event WhitelistUpdated(uint256 wlBlockNumber, uint256 wlMinBalance, bytes32 wlRoot);
    event TokenHardCapUpdated(address indexed _token, uint256 newTokenHardCap);
    event OperatorTransferred(address indexed previousOperator, address indexed newOperator);
    event VestingDurationUpdated(uint256 newVestingDuration);
    modifier onlyOperator() {
        if (msg.sender != operator) revert OperatorZeroAddress();
        _;
    }

    address public operator;
    string public name;

    IERC20 public immutable token;
    uint256 public immutable decimals;
    uint256 public immutable tokenUnit;

    address public immutable factory;

    uint256 public ethPricePerToken;
    uint256 public tokenHardCap;

    uint256 public minTokenBuy;
    uint256 public maxTokenBuy;

    uint256 public startDate;
    uint256 public endDate;

    uint256 public protocolFee;
    address public protocolFeeAddress;

    uint256 public releaseDelay;
    uint256 public vestingDuration;

    mapping (address => uint256) public purchasedAmount;
    mapping (address => uint256) public claimedAmount;
    uint256 public totalPurchasedAmount;

    uint256 public wlBlockNumber;
    uint256 public wlMinBalance;
    bytes32 public wlRoot;

    constructor(
        MainLaunchpadInfo memory _info,
        uint256 _protocolFee,
        address _protocolFeeAddress,
        address _operator,
        address _factory
    ) {

        name = _info.name;
        factory = _factory;

        if (_info.ethPricePerToken == 0) revert InvalidEthPrice();
        if (_info.minTokenBuy == 0) revert InvalidMinTokenBuy();
        if (_info.maxTokenBuy == 0) revert InvalidMaxTokenBuy();
        if (_info.startDate <= block.timestamp) revert InvalidStartDate();
        if (_info.endDate <= _info.startDate) revert InvalidEndDate();
        if (_operator == address(0)) revert ZeroAddress();

        operator = _operator;

        token = IERC20(_info.token);
        decimals = IERC20Metadata(_info.token).decimals();
        tokenUnit = 10**decimals;

        ethPricePerToken = _info.ethPricePerToken;
        minTokenBuy = _info.minTokenBuy;
        maxTokenBuy = _info.maxTokenBuy;

        startDate = _info.startDate;
        endDate = _info.endDate;

        protocolFee = _protocolFee;
        protocolFeeAddress = _protocolFeeAddress;

        releaseDelay = _info.releaseDelay;
        vestingDuration = _info.vestingDuration;

    }

    /**
     * @return true if the launchpad has started
     */

    function isStarted() public view returns (bool) {
        return block.timestamp >= startDate;
    }

    /**
     * @return true if the launchpad has ended
     */

    function isEnded() public view returns (bool) {
        return block.timestamp >= endDate;
    }

    /**
     * @return true if the tokens in the launchpad are claimable
     */

    function isClaimable() public view returns (bool) {
        return block.timestamp >= endDate + releaseDelay;
    }

    /**
     * 
     * @param newOperator new operator address
     * This function is used to transfer ownership of the launchpad to another address.
     */

    function transferOperatorOwnership(address newOperator) external onlyOperator {
        if (newOperator == address(0)) revert ZeroAddress();
        if (newOperator == operator) revert SameOperator();

        emit OperatorTransferred(operator, newOperator);
        operator = newOperator;
    }

    /**
     * @param _wlBlockNumber block number of the whitelist's snapshot
     * @param _wlMinBalance min balance threshold of the whitelist
     * @param _wlMinBalance merkle tree root of the whitelist
     *
     * When set, the buyTokens() will require a proof matching the buyer address and this root.
     */
    function updateWhitelist(uint256 _wlBlockNumber, uint256 _wlMinBalance, bytes32 _wlRoot) external onlyOperator {
        wlBlockNumber = _wlBlockNumber;
        wlMinBalance = _wlMinBalance;
        wlRoot = _wlRoot;

        emit WhitelistUpdated(wlBlockNumber, wlMinBalance, wlRoot);
    }

    /**
     * 
     * @param _tokenHardCapIncrement amount of tokens to increase the hard cap by
     * This function is used to increase the hard cap of the launchpad.
     * The operator can increase the hard cap by any amount of tokens.
     */

    function increaseHardCap(uint256 _tokenHardCapIncrement) external onlyOperator {
        if (_tokenHardCapIncrement == 0) revert InvalidTokenHardCapIncrement();

        uint256 _feeAmount = _tokenHardCapIncrement * protocolFee / 10000;
        if (_feeAmount > 0) {
            token.safeTransferFrom(msg.sender, protocolFeeAddress, _feeAmount);
            _tokenHardCapIncrement -= _feeAmount;
        }

        IERC20(token).safeTransferFrom(msg.sender, address(this), _tokenHardCapIncrement);
        tokenHardCap += _tokenHardCapIncrement;
        emit TokenHardCapUpdated(address(token), tokenHardCap);
    }

    /**
     * 
     * @param _ethPricePerToken new ETH price per token
     * This function is used to change the ETH price per token.
     */

    function updateEthPricePerToken(uint256 _ethPricePerToken) external onlyOperator {
        if (_ethPricePerToken == 0) revert InvalidEthPrice();
        emit ethPricePerTokenUpdated(address(token), _ethPricePerToken);
        ethPricePerToken = _ethPricePerToken;
    }

    /**
     * 
     * @param ethAmount amount of ETH
     * @return the amount of tokens that the user will receive for the given amount of ETH
     * This function is used to calculate the amount of tokens that the user will receive for the given amount of ETH.
     */

    function ethToToken(uint256 ethAmount) public view returns (uint256) {
        return ethAmount * tokenUnit / ethPricePerToken;
    }

    /**
     * @param proof the proof in case this launchpad has a whitelist, empty otherwise.
     * Allows the user to buy tokens during the launchpad.
     */
    function buyTokens(bytes32[] calldata proof) external payable {
        if (!isStarted()) revert NotStarted();
        if (isEnded()) revert Ended();
        if (msg.value == 0) revert InvalidBuyAmount();


        // check proof validity when a whitelist has been set.
        if (wlBlockNumber > 0 && !MerkleProof.verifyCalldata(
            proof, wlRoot, keccak256(bytes.concat(keccak256(abi.encode(msg.sender))))
        )) {
            revert InvalidWhitelistProof();
        }

        uint256 _tokensAmount = ethToToken(msg.value);
        if (_tokensAmount < minTokenBuy) {
            revert AmountTooLow();
        }

        if (purchasedAmount[msg.sender] + _tokensAmount > maxTokenBuy) {
            revert AmountExceedsMaxTokenAmount();
        }

        if (totalPurchasedAmount + _tokensAmount > tokenHardCap) {
            revert AmountExceedsHardCap();
        }

        purchasedAmount[msg.sender] += _tokensAmount;
        totalPurchasedAmount += _tokensAmount;

        emit TokensPurchased(address(token), msg.sender, _tokensAmount);
    }

    /**
     * 
     * @param _address address of the user
     * @return the amount of tokens that the user can claim
     * This function is used to calculate the amount of tokens that the user can claim.
     * The tokens are released linearly over the vesting duration.
     */

    function claimableAmount(address _address) public view returns (uint256) {
        if (!isClaimable()) {
            return 0;
        }

        uint256 _purchasedAmount = purchasedAmount[_address];
        uint256 _claimedAmount = claimedAmount[_address];
        uint256 _netAmount = _purchasedAmount - _claimedAmount;

        if (vestingDuration == 0 || (block.timestamp >= endDate + releaseDelay + vestingDuration)) {
            return _netAmount;
        }

        uint256 _unlockedAmount = _purchasedAmount * (block.timestamp - endDate - releaseDelay) / vestingDuration;

        if (_unlockedAmount > _purchasedAmount) {
            _unlockedAmount = _purchasedAmount;
        }

        _unlockedAmount -= _claimedAmount;
        
        return _unlockedAmount;
    }

    /**
     * Allows the user to claim their tokens after the launchpad has ended.
     * The tokens are released linearly over the vesting duration.
     */

    function claimTokens() external {
        if (!isClaimable()) {
            revert NotClaimable();
        }
        if (purchasedAmount[msg.sender] == 0) {
            revert NoPurchasedTokens();
        }

        uint256 _claimableAmount = claimableAmount(msg.sender);
        if (_claimableAmount == 0) {
            revert NoClaimableTokens();
        }
        claimedAmount[msg.sender] += _claimableAmount;

        token.safeTransfer(msg.sender, _claimableAmount);

        emit TokensClaimed(address(token), msg.sender, _claimableAmount);
    }

    /**
     * Allows the operator to withdraw ETH after the launchpad has ended.
     */

    function withdrawEth() external onlyOperator {
        if (!isEnded()) {
            revert NotEnded();
        }
        uint256 _balance = address(this).balance;
        if (_balance == 0) {
            revert NoBalanceToWithdraw();
        }
        (bool success, ) = payable(msg.sender).call{value: _balance}("");
        if (!success) {
            revert EthereumTransferFailed();
        }
    }

    /**
     * Allows the operator to withdraw any remaining tokens after the launchpad has ended.
     * This is useful in case the launchpad has not sold all the tokens.
     */

    function withdrawTokens() external onlyOperator {
        if (!isEnded()) {
            revert NotEnded();
        }
        uint256 _balance = token.balanceOf(address(this));
        uint256 _purchasedAmount = totalPurchasedAmount;

        if (_purchasedAmount > _balance) {
            _balance = 0;
        } else {
            _balance -= _purchasedAmount;
        }

        if (_balance <= 0) {
            revert NoBalanceToWithdraw();
        }
        token.safeTransfer(msg.sender, _balance);
    }

    /**
     * 
     * @param _vestingDuration new vesting duration
     * This function is used to change the vesting duration of the launchpad.
     */

    function setVestingDuration(uint256 _vestingDuration) external onlyOperator {
        require(!isEnded(), "Launchpad: ENDED");
        emit VestingDurationUpdated(_vestingDuration);
        vestingDuration = _vestingDuration;
    }

    /**
     * 
     * @param _name new name of the launchpad
     * This function is used to change the name of the launchpad.
     */

    function setName(string memory _name) external onlyOperator {
        name = _name;
    }

    /**
     * 
     * @param _newOwner new owner address
     * This function is used to transfer ownership of purchased tokens to another address.
     * This is useful for external integrators suchs as Zappers,
     * which need to transfer ownership of purchased tokens to the user.
     */

    function transferPurchasedOwnership(address _newOwner) external {

        if (isEnded()) {
            revert Ended();
        }

        uint256 _purchasedAmount = purchasedAmount[msg.sender];
        uint256 _newUserPurchaseAmount = purchasedAmount[_newOwner];

        if (_newUserPurchaseAmount + _purchasedAmount > maxTokenBuy) {
            revert AmountExceedsMaxTokenAmount();
        }

        purchasedAmount[msg.sender] = 0;
        purchasedAmount[_newOwner] += _purchasedAmount;
    }
}

// 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
// OpenZeppelin Contracts (last updated v5.0.0) (interfaces/draft-IERC6093.sol)
pragma solidity ^0.8.20;

/**
 * @dev Standard ERC20 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC20 tokens.
 */
interface IERC20Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC20InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC20InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     * @param allowance Amount of tokens a `spender` is allowed to operate with.
     * @param needed Minimum amount required to perform a transfer.
     */
    error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC20InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
     * @param spender Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC20InvalidSpender(address spender);
}

/**
 * @dev Standard ERC721 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC721 tokens.
 */
interface IERC721Errors {
    /**
     * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in EIP-20.
     * Used in balance queries.
     * @param owner Address of the current owner of a token.
     */
    error ERC721InvalidOwner(address owner);

    /**
     * @dev Indicates a `tokenId` whose `owner` is the zero address.
     * @param tokenId Identifier number of a token.
     */
    error ERC721NonexistentToken(uint256 tokenId);

    /**
     * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param tokenId Identifier number of a token.
     * @param owner Address of the current owner of a token.
     */
    error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC721InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC721InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param tokenId Identifier number of a token.
     */
    error ERC721InsufficientApproval(address operator, uint256 tokenId);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC721InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC721InvalidOperator(address operator);
}

/**
 * @dev Standard ERC1155 Errors
 * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC1155 tokens.
 */
interface IERC1155Errors {
    /**
     * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     * @param balance Current balance for the interacting account.
     * @param needed Minimum amount required to perform a transfer.
     * @param tokenId Identifier number of a token.
     */
    error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);

    /**
     * @dev Indicates a failure with the token `sender`. Used in transfers.
     * @param sender Address whose tokens are being transferred.
     */
    error ERC1155InvalidSender(address sender);

    /**
     * @dev Indicates a failure with the token `receiver`. Used in transfers.
     * @param receiver Address to which tokens are being transferred.
     */
    error ERC1155InvalidReceiver(address receiver);

    /**
     * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     * @param owner Address of the current owner of a token.
     */
    error ERC1155MissingApprovalForAll(address operator, address owner);

    /**
     * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
     * @param approver Address initiating an approval operation.
     */
    error ERC1155InvalidApprover(address approver);

    /**
     * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
     * @param operator Address that may be allowed to operate on tokens without being their owner.
     */
    error ERC1155InvalidOperator(address operator);

    /**
     * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
     * Used in batch transfers.
     * @param idsLength Length of the array of token identifiers
     * @param valuesLength Length of the array of token amounts
     */
    error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
}

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

pragma solidity ^0.8.20;

import {IERC20} from "./IERC20.sol";
import {IERC20Metadata} from "./extensions/IERC20Metadata.sol";
import {Context} from "../../utils/Context.sol";
import {IERC20Errors} from "../../interfaces/draft-IERC6093.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 */
abstract contract ERC20 is Context, IERC20, IERC20Metadata, IERC20Errors {
    mapping(address account => uint256) private _balances;

    mapping(address account => mapping(address spender => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, value);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 value) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, value);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `value`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `value`.
     */
    function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, value);
        _transfer(from, to, value);
        return true;
    }

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _transfer(address from, address to, uint256 value) internal {
        if (from == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        if (to == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(from, to, value);
    }

    /**
     * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
     * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
     * this function.
     *
     * Emits a {Transfer} event.
     */
    function _update(address from, address to, uint256 value) internal virtual {
        if (from == address(0)) {
            // Overflow check required: The rest of the code assumes that totalSupply never overflows
            _totalSupply += value;
        } else {
            uint256 fromBalance = _balances[from];
            if (fromBalance < value) {
                revert ERC20InsufficientBalance(from, fromBalance, value);
            }
            unchecked {
                // Overflow not possible: value <= fromBalance <= totalSupply.
                _balances[from] = fromBalance - value;
            }
        }

        if (to == address(0)) {
            unchecked {
                // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                _totalSupply -= value;
            }
        } else {
            unchecked {
                // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                _balances[to] += value;
            }
        }

        emit Transfer(from, to, value);
    }

    /**
     * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
     * Relies on the `_update` mechanism
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead.
     */
    function _mint(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidReceiver(address(0));
        }
        _update(address(0), account, value);
    }

    /**
     * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
     * Relies on the `_update` mechanism.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * NOTE: This function is not virtual, {_update} should be overridden instead
     */
    function _burn(address account, uint256 value) internal {
        if (account == address(0)) {
            revert ERC20InvalidSender(address(0));
        }
        _update(account, address(0), value);
    }

    /**
     * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     *
     * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
     */
    function _approve(address owner, address spender, uint256 value) internal {
        _approve(owner, spender, value, true);
    }

    /**
     * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
     *
     * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
     * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
     * `Approval` event during `transferFrom` operations.
     *
     * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
     * true using the following override:
     * ```
     * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
     *     super._approve(owner, spender, value, true);
     * }
     * ```
     *
     * Requirements are the same as {_approve}.
     */
    function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
        if (owner == address(0)) {
            revert ERC20InvalidApprover(address(0));
        }
        if (spender == address(0)) {
            revert ERC20InvalidSpender(address(0));
        }
        _allowances[owner][spender] = value;
        if (emitEvent) {
            emit Approval(owner, spender, value);
        }
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `value`.
     *
     * Does not update the allowance value in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Does not emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            if (currentAllowance < value) {
                revert ERC20InsufficientAllowance(spender, currentAllowance, value);
            }
            unchecked {
                _approve(owner, spender, currentAllowance - value, false);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// 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
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}

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

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}

// 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) (utils/cryptography/MerkleProof.sol)

pragma solidity ^0.8.20;

/**
 * @dev These functions deal with verification of Merkle Tree proofs.
 *
 * The tree and the proofs can be generated using our
 * https://github.com/OpenZeppelin/merkle-tree[JavaScript library].
 * You will find a quickstart guide in the readme.
 *
 * WARNING: You should avoid using leaf values that are 64 bytes long prior to
 * hashing, or use a hash function other than keccak256 for hashing leaves.
 * This is because the concatenation of a sorted pair of internal nodes in
 * the Merkle tree could be reinterpreted as a leaf value.
 * OpenZeppelin's JavaScript library generates Merkle trees that are safe
 * against this attack out of the box.
 */
library MerkleProof {
    /**
     *@dev The multiproof provided is not valid.
     */
    error MerkleProofInvalidMultiproof();

    /**
     * @dev Returns true if a `leaf` can be proved to be a part of a Merkle tree
     * defined by `root`. For this, a `proof` must be provided, containing
     * sibling hashes on the branch from the leaf to the root of the tree. Each
     * pair of leaves and each pair of pre-images are assumed to be sorted.
     */
    function verify(bytes32[] memory proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProof(proof, leaf) == root;
    }

    /**
     * @dev Calldata version of {verify}
     */
    function verifyCalldata(bytes32[] calldata proof, bytes32 root, bytes32 leaf) internal pure returns (bool) {
        return processProofCalldata(proof, leaf) == root;
    }

    /**
     * @dev Returns the rebuilt hash obtained by traversing a Merkle tree up
     * from `leaf` using `proof`. A `proof` is valid if and only if the rebuilt
     * hash matches the root of the tree. When processing the proof, the pairs
     * of leafs & pre-images are assumed to be sorted.
     */
    function processProof(bytes32[] memory proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Calldata version of {processProof}
     */
    function processProofCalldata(bytes32[] calldata proof, bytes32 leaf) internal pure returns (bytes32) {
        bytes32 computedHash = leaf;
        for (uint256 i = 0; i < proof.length; i++) {
            computedHash = _hashPair(computedHash, proof[i]);
        }
        return computedHash;
    }

    /**
     * @dev Returns true if the `leaves` can be simultaneously proven to be a part of a Merkle tree defined by
     * `root`, according to `proof` and `proofFlags` as described in {processMultiProof}.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function multiProofVerify(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProof(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Calldata version of {multiProofVerify}
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function multiProofVerifyCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32 root,
        bytes32[] memory leaves
    ) internal pure returns (bool) {
        return processMultiProofCalldata(proof, proofFlags, leaves) == root;
    }

    /**
     * @dev Returns the root of a tree reconstructed from `leaves` and sibling nodes in `proof`. The reconstruction
     * proceeds by incrementally reconstructing all inner nodes by combining a leaf/inner node with either another
     * leaf/inner node or a proof sibling node, depending on whether each `proofFlags` item is true or false
     * respectively.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. To use multiproofs, it is sufficient to ensure that: 1) the tree
     * is complete (but not necessarily perfect), 2) the leaves to be proven are in the opposite order they are in the
     * tree (i.e., as seen from right to left starting at the deepest layer and continuing at the next layer).
     */
    function processMultiProof(
        bytes32[] memory proof,
        bool[] memory proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the Merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        if (leavesLen + proofLen != totalHashes + 1) {
            revert MerkleProofInvalidMultiproof();
        }

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            if (proofPos != proofLen) {
                revert MerkleProofInvalidMultiproof();
            }
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Calldata version of {processMultiProof}.
     *
     * CAUTION: Not all Merkle trees admit multiproofs. See {processMultiProof} for details.
     */
    function processMultiProofCalldata(
        bytes32[] calldata proof,
        bool[] calldata proofFlags,
        bytes32[] memory leaves
    ) internal pure returns (bytes32 merkleRoot) {
        // This function rebuilds the root hash by traversing the tree up from the leaves. The root is rebuilt by
        // consuming and producing values on a queue. The queue starts with the `leaves` array, then goes onto the
        // `hashes` array. At the end of the process, the last hash in the `hashes` array should contain the root of
        // the Merkle tree.
        uint256 leavesLen = leaves.length;
        uint256 proofLen = proof.length;
        uint256 totalHashes = proofFlags.length;

        // Check proof validity.
        if (leavesLen + proofLen != totalHashes + 1) {
            revert MerkleProofInvalidMultiproof();
        }

        // The xxxPos values are "pointers" to the next value to consume in each array. All accesses are done using
        // `xxx[xxxPos++]`, which return the current value and increment the pointer, thus mimicking a queue's "pop".
        bytes32[] memory hashes = new bytes32[](totalHashes);
        uint256 leafPos = 0;
        uint256 hashPos = 0;
        uint256 proofPos = 0;
        // At each step, we compute the next hash using two values:
        // - a value from the "main queue". If not all leaves have been consumed, we get the next leaf, otherwise we
        //   get the next hash.
        // - depending on the flag, either another value from the "main queue" (merging branches) or an element from the
        //   `proof` array.
        for (uint256 i = 0; i < totalHashes; i++) {
            bytes32 a = leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++];
            bytes32 b = proofFlags[i]
                ? (leafPos < leavesLen ? leaves[leafPos++] : hashes[hashPos++])
                : proof[proofPos++];
            hashes[i] = _hashPair(a, b);
        }

        if (totalHashes > 0) {
            if (proofPos != proofLen) {
                revert MerkleProofInvalidMultiproof();
            }
            unchecked {
                return hashes[totalHashes - 1];
            }
        } else if (leavesLen > 0) {
            return leaves[0];
        } else {
            return proof[0];
        }
    }

    /**
     * @dev Sorts the pair (a, b) and hashes the result.
     */
    function _hashPair(bytes32 a, bytes32 b) private pure returns (bytes32) {
        return a < b ? _efficientHash(a, b) : _efficientHash(b, a);
    }

    /**
     * @dev Implementation of keccak256(abi.encode(a, b)) that doesn't allocate or expand memory.
     */
    function _efficientHash(bytes32 a, bytes32 b) private pure returns (bytes32 value) {
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, a)
            mstore(0x20, b)
            value := keccak256(0x00, 0x40)
        }
    }
}

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;

error ZeroAddress();
error InvalidEthPrice();
error InvalidMinTokenBuy();
error InvalidMaxTokenBuy();
error InvalidStartDate();
error InvalidEndDate();
error OperatorZeroAddress();
error SameOperator();
error InvalidTokenHardCapIncrement();
error NotStarted();
error Ended();
error InvalidWhitelistProof();
error InvalidBuyAmount();
error AmountExceedsHardCap();
error AmountTooLow();
error AmountExceedsMaxTokenAmount();
error NotClaimable();
error NoPurchasedTokens();
error NoClaimableTokens();
error NotEnded();
error NoBalanceToWithdraw();
error EthereumTransferFailed();
error InvalidProtocolFee();

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;


struct MainLaunchpadInfo {
    string name;
    address token;
    uint256 ethPricePerToken;
    uint256 minTokenBuy;
    uint256 maxTokenBuy;
    uint256 startDate;
    uint256 endDate;
    uint256 releaseDelay;
    uint256 vestingDuration;
}

interface ILaunchpadFactory {
    function launchpads() external view returns (address[] memory);
    function trustedLaunchpads() external view returns (address[] memory);
    function protocolFeeAddress() external view returns (address);
    function protocolFee() external view returns (uint256);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 3000
  },
  "evmVersion": "paris",
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"components":[{"internalType":"string","name":"name","type":"string"},{"internalType":"address","name":"token","type":"address"},{"internalType":"uint256","name":"ethPricePerToken","type":"uint256"},{"internalType":"uint256","name":"minTokenBuy","type":"uint256"},{"internalType":"uint256","name":"maxTokenBuy","type":"uint256"},{"internalType":"uint256","name":"startDate","type":"uint256"},{"internalType":"uint256","name":"endDate","type":"uint256"},{"internalType":"uint256","name":"releaseDelay","type":"uint256"},{"internalType":"uint256","name":"vestingDuration","type":"uint256"}],"internalType":"struct MainLaunchpadInfo","name":"_info","type":"tuple"},{"internalType":"uint256","name":"_protocolFee","type":"uint256"},{"internalType":"address","name":"_protocolFeeAddress","type":"address"},{"internalType":"address","name":"_operator","type":"address"},{"internalType":"address","name":"_factory","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"target","type":"address"}],"name":"AddressEmptyCode","type":"error"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"AddressInsufficientBalance","type":"error"},{"inputs":[],"name":"AmountExceedsHardCap","type":"error"},{"inputs":[],"name":"AmountExceedsMaxTokenAmount","type":"error"},{"inputs":[],"name":"AmountTooLow","type":"error"},{"inputs":[],"name":"Ended","type":"error"},{"inputs":[],"name":"EthereumTransferFailed","type":"error"},{"inputs":[],"name":"FailedInnerCall","type":"error"},{"inputs":[],"name":"InvalidBuyAmount","type":"error"},{"inputs":[],"name":"InvalidEndDate","type":"error"},{"inputs":[],"name":"InvalidEthPrice","type":"error"},{"inputs":[],"name":"InvalidMaxTokenBuy","type":"error"},{"inputs":[],"name":"InvalidMinTokenBuy","type":"error"},{"inputs":[],"name":"InvalidStartDate","type":"error"},{"inputs":[],"name":"InvalidTokenHardCapIncrement","type":"error"},{"inputs":[],"name":"InvalidWhitelistProof","type":"error"},{"inputs":[],"name":"NoBalanceToWithdraw","type":"error"},{"inputs":[],"name":"NoClaimableTokens","type":"error"},{"inputs":[],"name":"NoPurchasedTokens","type":"error"},{"inputs":[],"name":"NotClaimable","type":"error"},{"inputs":[],"name":"NotEnded","type":"error"},{"inputs":[],"name":"NotStarted","type":"error"},{"inputs":[],"name":"OperatorZeroAddress","type":"error"},{"inputs":[{"internalType":"address","name":"token","type":"address"}],"name":"SafeERC20FailedOperation","type":"error"},{"inputs":[],"name":"SameOperator","type":"error"},{"inputs":[],"name":"ZeroAddress","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOperator","type":"address"},{"indexed":true,"internalType":"address","name":"newOperator","type":"address"}],"name":"OperatorTransferred","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_token","type":"address"},{"indexed":false,"internalType":"uint256","name":"newTokenHardCap","type":"uint256"}],"name":"TokenHardCapUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_token","type":"address"},{"indexed":true,"internalType":"address","name":"buyer","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokensClaimed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_token","type":"address"},{"indexed":true,"internalType":"address","name":"buyer","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"TokensPurchased","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"newVestingDuration","type":"uint256"}],"name":"VestingDurationUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"wlBlockNumber","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"wlMinBalance","type":"uint256"},{"indexed":false,"internalType":"bytes32","name":"wlRoot","type":"bytes32"}],"name":"WhitelistUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"_token","type":"address"},{"indexed":false,"internalType":"uint256","name":"newEthPricePerToken","type":"uint256"}],"name":"ethPricePerTokenUpdated","type":"event"},{"inputs":[{"internalType":"bytes32[]","name":"proof","type":"bytes32[]"}],"name":"buyTokens","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"claimTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_address","type":"address"}],"name":"claimableAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"claimedAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"endDate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"ethPricePerToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"ethAmount","type":"uint256"}],"name":"ethToToken","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"factory","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenHardCapIncrement","type":"uint256"}],"name":"increaseHardCap","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"isClaimable","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isEnded","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"isStarted","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"maxTokenBuy","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"minTokenBuy","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"name","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"operator","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"protocolFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"protocolFeeAddress","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"purchasedAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"releaseDelay","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"_name","type":"string"}],"name":"setName","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_vestingDuration","type":"uint256"}],"name":"setVestingDuration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"startDate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token","outputs":[{"internalType":"contract IERC20","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenHardCap","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"tokenUnit","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalPurchasedAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOperator","type":"address"}],"name":"transferOperatorOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_newOwner","type":"address"}],"name":"transferPurchasedOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_ethPricePerToken","type":"uint256"}],"name":"updateEthPricePerToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_wlBlockNumber","type":"uint256"},{"internalType":"uint256","name":"_wlMinBalance","type":"uint256"},{"internalType":"bytes32","name":"_wlRoot","type":"bytes32"}],"name":"updateWhitelist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"vestingDuration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"withdrawEth","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawTokens","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"wlBlockNumber","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"wlMinBalance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"wlRoot","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"}]

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