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// SPDX-License-Identifier: BSD-3-Clause

pragma solidity 0.8.13;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "./interfaces/IVester.sol";
import "./interfaces/IBurnable.sol";
import "./Governable.sol";

/**
 * @title  Vester
 * @notice Implementation of vesting.
 */
contract VesterWithRatio is IVester, IERC20, ReentrancyGuard, Governable {

    using SafeERC20 for IERC20;

    string public  name;
    string public symbol;
    uint8 public decimals = 18;
    uint256 constant public BPS_DIVIDER = 10000;

    uint256 public immutable vestingDuration;  // in seconds
    uint256 public immutable directRefundRate; // bps 100
    uint256 public immutable endDate; 

    address public immutable depositToken;  // must be burnable
    address public immutable claimableToken;

    uint256 public override totalSupply;
    uint256 public ratio; // in bps 

    mapping(address => uint256) public balances;
    mapping(address => uint256) public override cumulativeClaimAmounts;
    mapping(address => uint256) public override claimedAmounts;
    mapping(address => uint256) public convertedClaimedAmounts;
    mapping(address => uint256) public lastVestingTimes;

    event Claim(address indexed receiver, uint256 amount, uint256 amountConverted);
    event Deposit(address indexed account, uint256 depositAmount , uint256 directRefundAmount, uint256 directRefundAmountConverted);
    event WithdrawToken(address indexed account, address indexed token, uint256 withdrawAmount);
    event UpdateVesting(address indexed account,uint256 lastVestingTime,uint256 burnAmount);
    event RatioUpdated(uint256 ratio);

    /// @notice constructor
    /// @dev Initializes token addresses and vesting parameters
    /// @param _name vesting token name
    /// @param _name vesting token symbol
    /// @param _vestingDuration vesting duration in seconds
    /// @param _directRefundRate direct refund rate, if defined, some part of deposit amount, directly transfer
    /// @param _depositToken deposit token address
    /// @param _claimableToken claimable token address
    constructor(
        string memory _name,
        string memory _symbol,
        uint256 _vestingDuration,
        uint256 _directRefundRate,
        address _depositToken,
        address _claimableToken,
        uint256 _ratio,
        uint256 _endDate
    )  {
        require(_directRefundRate < 100, "invalid direct refund rate");
        require(_depositToken != address(0), "invalid deposit token");
        require(_claimableToken != address(0), "invalid claimable token");
        require(_depositToken != _claimableToken, "invalid tokens");
        require(_ratio > 0, "invalid ratio");
        require(_endDate > block.timestamp, "invalid end date");
        name = _name;
        symbol = _symbol;
        

        vestingDuration = _vestingDuration;
        directRefundRate = _directRefundRate;
        depositToken = _depositToken;
        claimableToken = _claimableToken;
        ratio = _ratio;
        endDate = _endDate;
    }

    /// @dev to help users who accidentally send their tokens to this contract
    function setRatio(
        uint256 _ratio
    ) external onlyGov {
        require(_ratio > 0, "invalid ratio");
        ratio = _ratio;

        emit RatioUpdated(_ratio);
    }

    /// @notice send claimable amount to msg.sender
    function claim() external nonReentrant returns (uint256) {
        return _claim(msg.sender, msg.sender);
    }

    /// @notice send claimable amount to _receiver
    /// @param _receiver receiver address
    function claimTo(address _receiver) external nonReentrant returns (uint256) {
        require(_receiver != address(0), "zero address");
        return _claim(msg.sender, _receiver);
    }

    /// @dev to help users who accidentally send their tokens to this contract
    function withdrawToken(
        address _token,
        address _account,
        uint256 _amount
    ) external onlyGov nonReentrant{
        if (_token == depositToken) {
            uint256 depositBalance = IERC20(depositToken).balanceOf(address(this));
            require(totalSupply + _amount <= depositBalance , "Not allowed to withdraw users' funds");
        }
        if (_token == claimableToken) {
            uint256 claimBalance = IERC20(claimableToken).balanceOf(address(this));
            require((totalSupply * ratio / BPS_DIVIDER) + _amount <= claimBalance , "Not allowed to withdraw users' funds");
        }

        IERC20(_token).safeTransfer(_account, _amount);
        emit WithdrawToken(_account, _token ,_amount);
    }

    /// @notice calculate claimable amount for `_account` with ratio
    function claimable(address _account) external view override returns (uint256) {
        return _claimable(_account) * ratio / BPS_DIVIDER;
    }

    /// @notice calculate claimable amount for `_account` without ratio
    function _claimable(address _account) internal view returns (uint256) {
        uint256 amount = cumulativeClaimAmounts[_account] - claimedAmounts[_account];
        uint256 nextClaimable = _getNextClaimableAmount(_account);
        return amount + nextClaimable;
    }

    /// @notice vesting token balance of `_account`
    function balanceOf(address _account) external view override returns (uint256) {
        return balances[_account];
    }

    /// @dev empty implementation, tokens are non-transferrable
    function transfer(
        address, /* recipient */
        uint256 /* amount */
    ) public pure override returns (bool) {
        revert("non-transferrable");
    }

    /// @dev empty implementation, tokens are non-transferrable
    function allowance(
        address, /* owner */
        address /* spender */
    ) public view virtual override returns (uint256) {
        return 0;
    }

    /// @dev empty implementation, tokens are non-transferrable
    function approve(
        address, /* spender */
        uint256 /* amount */
    ) public pure virtual override returns (bool) {
        revert("non-transferrable");
    }

    /// @dev empty implementation, tokens are non-transferrable
    function transferFrom(
        address, /* sender */
        address, /* recipient */
        uint256 /* amount */
    ) public pure virtual override returns (bool) {
        revert("non-transferrable");
    }

    /// @notice total vested amount of `_account`
    function getVestedAmount(address _account) public view override returns (uint256) {
        return balances[_account] + cumulativeClaimAmounts[_account];
    }

    /// @dev vesting token mint function
    function _mint(address _account, uint256 _amount) private {
        require(_account != address(0), "mint to the zero address");

        totalSupply = totalSupply + _amount;
        balances[_account] = balances[_account] + _amount;

        emit Transfer(address(0), _account, _amount);
    }

    /// @dev vesting token burn function
    function _burn(address _account, uint256 _amount) private {
        require(_account != address(0), "burn from the zero address");
        require(balances[_account] >= _amount , "burn amount exceeds balance");
        balances[_account] = balances[_account] - _amount;
        totalSupply = totalSupply - _amount;

        emit Transfer(_account, address(0), _amount);
    }

    /// @notice deposit for vesting 
    /// @param _amount amount of deposit token
    function deposit(uint256 _amount) external nonReentrant{  
        require(endDate > block.timestamp,"Conversion expired");       
        require(_amount > 0, "invalid _amount");
        uint256 claimBalance = IERC20(claimableToken).balanceOf(address(this));
        require(claimBalance >= (totalSupply + _amount) * ratio / BPS_DIVIDER, "Not enough claimable token");
        address account = msg.sender;

        _updateVesting(account);

        IERC20(depositToken).safeTransferFrom(account, address(this), _amount);

        uint256 directRefundAmount;

        if (directRefundRate > 0){
            directRefundAmount = (_amount * directRefundRate) / 100;
        }

        uint256 depositAmount = _amount - directRefundAmount;
        uint256 directRefundAmountConverted;

        _mint(account, depositAmount);

        if(directRefundAmount > 0){
            IBurnable(depositToken).burn(address(this), directRefundAmount);
            directRefundAmountConverted = directRefundAmount * ratio / BPS_DIVIDER;
            IERC20(claimableToken).safeTransfer(account, directRefundAmountConverted);
        }

        emit Deposit(account, depositAmount, directRefundAmount, directRefundAmountConverted);
    }

    /// @notice update vesting status for `_account`
    /// @dev update lastVestingTimes for `_account` and if claimable amount exists, 
    /// @dev burn  and transfer to cumulativeClaimAmounts 
    /// @param _account amount of deposit token
    function _updateVesting(address _account) private {
        uint256 amount = _getNextClaimableAmount(_account);
        lastVestingTimes[_account] = block.timestamp;

        if (amount > 0) {
            // transfer claimableAmount from balances to cumulativeClaimAmounts
            _burn(_account, amount);
            cumulativeClaimAmounts[_account] = cumulativeClaimAmounts[_account] + amount;

            IBurnable(depositToken).burn(address(this), amount);
        }

        emit UpdateVesting(_account, block.timestamp, amount);
    }

    /// @dev calculate next claimable amounts  for `_account` 
    function _getNextClaimableAmount(address _account) private view returns (uint256) {
        uint256 timeDiff = block.timestamp - lastVestingTimes[_account];
        if (timeDiff == 0) {
            return 0;
        }

        uint256 balance = balances[_account];
        if (balance == 0 ) {
            return 0;
        }

        uint256 vestedAmount = getVestedAmount(_account);
        uint256 claimableAmount =(vestedAmount * timeDiff) / vestingDuration;

        if (claimableAmount < balance) {
            return claimableAmount;
        }

        return balance;
    }

    /// @dev internal function of claim
    function _claim(address _account, address _receiver) private returns (uint256) {
        _updateVesting(_account);
        uint256 amount = _claimable(_account);
        uint256 amountConverted;
        if(amount > 0){
            amountConverted = amount * ratio / BPS_DIVIDER;
            claimedAmounts[_account] = claimedAmounts[_account] + amount;
            convertedClaimedAmounts[_account] = convertedClaimedAmounts[_account] + amountConverted;
            IERC20(claimableToken).safeTransfer(_receiver, amountConverted);
        }
        emit Claim(_account, amount, amountConverted);
        return amount;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @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 amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` 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 amount
    ) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/draft-IERC20Permit.sol";
import "../../../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;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @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, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }
}

// SPDX-License-Identifier: BSD-3-Clause

pragma solidity 0.8.13;

interface IVester {
    function claimable(address _account) external view returns (uint256);
    function cumulativeClaimAmounts(address _account) external view returns (uint256);
    function claimedAmounts(address _account) external view returns (uint256);
    function getVestedAmount(address _account) external view returns (uint256);
}

// SPDX-License-Identifier: BSD-3-Clause

pragma solidity 0.8.13;

interface IBurnable {
    function burn(address _account, uint256 _amount) external;
}

// SPDX-License-Identifier: BSD-3-Clause
pragma solidity 0.8.13;

/// @title Governable
/// @notice Basic access control mechanism, gov has access to certain functions
contract Governable {
    address public gov;

    event SetGov(address prevGov, address nextGov);

    error NotGovernance(address account);

    /// @dev Initializes the contract setting the deployer address as governance
    constructor() {
        _setGov(msg.sender);
    }

    /// @dev Reverts if called by any account other than gov
    modifier onlyGov() {
        if(msg.sender != gov) 
            revert NotGovernance(msg.sender);
        _;
    }

    /// @notice Sets a new governance address
    /// @dev Only callable by governance
    function setGov(address _gov) external onlyGov {
        require(_gov != address(0), "!zero address");
        _setGov(_gov);
    }

    /// @notice Sets a new governance address
    /// @dev Internal function without access restriction
    function _setGov(address _gov) internal {
        address prevGov = gov;
        gov = _gov;
        emit SetGov(prevGov, _gov);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @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.
 */
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].
     */
    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 v4.8.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @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://diligence.consensys.net/posts/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/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @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, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * 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.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @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`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) 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(errorMessage);
        }
    }
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"string","name":"_name","type":"string"},{"internalType":"string","name":"_symbol","type":"string"},{"internalType":"uint256","name":"_vestingDuration","type":"uint256"},{"internalType":"uint256","name":"_directRefundRate","type":"uint256"},{"internalType":"address","name":"_depositToken","type":"address"},{"internalType":"address","name":"_claimableToken","type":"address"},{"internalType":"uint256","name":"_ratio","type":"uint256"},{"internalType":"uint256","name":"_endDate","type":"uint256"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"NotGovernance","type":"error"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"address","name":"spender","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Approval","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"receiver","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"amountConverted","type":"uint256"}],"name":"Claim","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"depositAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"directRefundAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"directRefundAmountConverted","type":"uint256"}],"name":"Deposit","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"uint256","name":"ratio","type":"uint256"}],"name":"RatioUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"prevGov","type":"address"},{"indexed":false,"internalType":"address","name":"nextGov","type":"address"}],"name":"SetGov","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"from","type":"address"},{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"value","type":"uint256"}],"name":"Transfer","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"lastVestingTime","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"burnAmount","type":"uint256"}],"name":"UpdateVesting","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"token","type":"address"},{"indexed":false,"internalType":"uint256","name":"withdrawAmount","type":"uint256"}],"name":"WithdrawToken","type":"event"},{"inputs":[],"name":"BPS_DIVIDER","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"allowance","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"approve","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"balanceOf","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"balances","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claim","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_receiver","type":"address"}],"name":"claimTo","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"claimable","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"claimableToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"claimedAmounts","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"convertedClaimedAmounts","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"cumulativeClaimAmounts","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"decimals","outputs":[{"internalType":"uint8","name":"","type":"uint8"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"deposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"depositToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"directRefundRate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"endDate","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_account","type":"address"}],"name":"getVestedAmount","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"gov","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"}],"name":"lastVestingTimes","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":"ratio","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_gov","type":"address"}],"name":"setGov","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_ratio","type":"uint256"}],"name":"setRatio","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"symbol","outputs":[{"internalType":"string","name":"","type":"string"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"transfer","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"uint256","name":"","type":"uint256"}],"name":"transferFrom","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"pure","type":"function"},{"inputs":[],"name":"vestingDuration","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_token","type":"address"},{"internalType":"address","name":"_account","type":"address"},{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdrawToken","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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-----Decoded View---------------
Arg [0] : _name (string): Vested BnMVX
Arg [1] : _symbol (string): vBnMVX
Arg [2] : _vestingDuration (uint256): 31536000
Arg [3] : _directRefundRate (uint256): 25
Arg [4] : _depositToken (address): 0xB6BDd10A12286401C8DfaC93Fe933c7abBD6d0aF
Arg [5] : _claimableToken (address): 0x2760E46d9BB43dafCbEcaad1F64b93207f9f0eD7
Arg [6] : _ratio (uint256): 138
Arg [7] : _endDate (uint256): 1731628800

-----Encoded View---------------
12 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000100
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000140
Arg [2] : 0000000000000000000000000000000000000000000000000000000001e13380
Arg [3] : 0000000000000000000000000000000000000000000000000000000000000019
Arg [4] : 000000000000000000000000b6bdd10a12286401c8dfac93fe933c7abbd6d0af
Arg [5] : 0000000000000000000000002760e46d9bb43dafcbecaad1f64b93207f9f0ed7
Arg [6] : 000000000000000000000000000000000000000000000000000000000000008a
Arg [7] : 0000000000000000000000000000000000000000000000000000000067368f00
Arg [8] : 000000000000000000000000000000000000000000000000000000000000000c
Arg [9] : 56657374656420426e4d56580000000000000000000000000000000000000000
Arg [10] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [11] : 76426e4d56580000000000000000000000000000000000000000000000000000