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 0.8.17;

import "../interfaces/INFT.sol";
import "../interfaces/IMarketplace.sol";
import "../interfaces/ISaleToken.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@openzeppelin/contracts/utils/math/SafeMath.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

contract Marketplace is Ownable, IMarketplace, ReentrancyGuard {
    using SafeERC20 for IERC20;

    event KangaPOSAddressUpdated(address indexed oldAddress, address indexed newAddress);
    event NFTSTypeForSaleDataUpdated(
        string membershipType,
        uint256 quantity,
        bool isEnabled,
        uint256 price,
        uint256 validity
    );

    event NFTSold(
        address indexed to,
        uint256 nftId,
        string membershipType,
        uint256 membershipTypeSerialId,
        uint256 price
    );

    event BETokenBought(address indexed to, uint256 tokenAmount, uint256 exchangedTokenAmount);

    struct NFTTypeSaleData {
        uint256 quantity;
        bool isEnabled;
        uint256 price;
        uint256 validity;
    }

    mapping(string => NFTTypeSaleData) public nftsSaleDataByType;

    uint256 private constant _INITIAL_BE_PRICE = 1 ether;
    uint256 public marketplaceSaleUnlock = 1670922000;

    INFT private _nftContract;
    ISaleToken private _tokenContract;
    IERC20 private _usdtContract;
    address private _kangaPOS;

    modifier marketplaceSaleGuard() {
        require(block.timestamp >= marketplaceSaleUnlock, "Marketplace: The sale is not unlocked yet");
        _;
    }

    constructor(
        address beTokenAddress,
        address nftContract,
        address usdtTokenAddress
    ) {
        _nftContract = INFT(nftContract);
        _tokenContract = ISaleToken(beTokenAddress);
        _usdtContract = IERC20(usdtTokenAddress);
    }

    function setMarketplaceUnlockTime(uint256 unlockTime) external onlyOwner {
        marketplaceSaleUnlock = unlockTime;
    }

    function renounceOwnership() public view override onlyOwner {
        revert("Token: ownership renounce not allowed");
    }

    function setKangaPOSAddress(address kangaPOS) external onlyOwner {
        address previousAddress = _kangaPOS;

        _kangaPOS = kangaPOS;

        emit KangaPOSAddressUpdated(previousAddress, kangaPOS);
    }

    function remainingTokenSupply() external view returns (uint256) {
        return _tokenContract.balanceOf(address(this));
    }

    function buyToken(uint256 amount) external nonReentrant marketplaceSaleGuard {
        require(_tokenContract.balanceOf(address(this)) >= amount, "Marketplace: Not enough token supply for the sale");

        address caller = _msgSender();
        uint256 exchangedAmount = _beTokensPriceInUSDT(amount);

        _usdtContract.safeTransferFrom(caller, owner(), exchangedAmount);
        _tokenContract.transfer(caller, amount);

        emit BETokenBought(caller, amount, exchangedAmount);
    }

    function upsertNFTSaleTypeData(
        string memory membershipType,
        uint256 quantity,
        bool isEnabled,
        uint256 price,
        uint256 validity
    ) external onlyOwner {
        require(validity == 0 || validity >= 1 hours, "Marketplace: NFT validity should be at least 1 hour");

        nftsSaleDataByType[membershipType] = NFTTypeSaleData({
            quantity: quantity,
            isEnabled: isEnabled,
            price: price,
            validity: validity
        });

        emit NFTSTypeForSaleDataUpdated(membershipType, quantity, isEnabled, price, validity);
    }

    function _remainingNFTSupplyByType(string memory membershipType) internal view returns (uint256) {
        uint256 soldNfts = _nftContract.soldNftsByDataType(membershipType);
        uint256 nftSupply = nftsSaleDataByType[membershipType].quantity;

        if (nftSupply >= soldNfts) {
            return nftSupply - soldNfts;
        } else {
            return 0;
        }
    }

    function remainingNFTSupplyByType(string memory membershipType) external view returns (uint256) {
        if (nftsSaleDataByType[membershipType].isEnabled) {
            return _remainingNFTSupplyByType(membershipType);
        } else {
            return 0;
        }
    }

    function _beTokenPrice() internal view returns (uint256) {
        uint256 currentRound = _tokenContract.currentRound();

        if (currentRound <= 1) {
            return _INITIAL_BE_PRICE;
        }

        return (_INITIAL_BE_PRICE * (105**(currentRound - 1))) / (100**(currentRound - 1));
    }

    function _beTokensPriceInUSDT(uint256 amount) internal view returns (uint256) {
      return SafeMath.div(SafeMath.div(SafeMath.mul(amount, _beTokenPrice()), 1 ether), 10 ** 12);
    }

    function beTokensPriceInUSDT(uint256 amount) external view returns (uint256) {
        return _beTokensPriceInUSDT(amount);
    }

    function buyNFT(string memory membershipType) external nonReentrant marketplaceSaleGuard {
        require(_kangaPOS != address(0), "Marketplace: kangaPOS has to be set before lunching the NFT sale");
        require(
            nftsSaleDataByType[membershipType].isEnabled,
            "Marketplace: specified membership type NFT is not for sale"
        );
        require(
            _remainingNFTSupplyByType(membershipType) > 0,
            "Marketplace: no NFT supply for specified membership type"
        );

        address caller = _msgSender();
        NFTTypeSaleData memory dataType = nftsSaleDataByType[membershipType];

        uint256 nftPrice = dataType.price;
        uint256 burnableAmount = SafeMath.div(SafeMath.mul(nftPrice, 19), 20);
        uint256 posReward = nftPrice - burnableAmount;

        /**
         * First burn the 95% of the amount and transfer rest to contract address
         */
        _tokenContract.burnFrom(caller, burnableAmount);

        /**
         * Transfer reward with allowance to kangaPOS
         */
        _tokenContract.transferFrom(caller, _kangaPOS, posReward);

        /**
         * Mint a NFT to an address and store the change
         */
        (uint256 nftId, uint256 membershipTypeSerialId) = _nftContract.mintNFT(
            caller,
            membershipType,
            dataType.validity
        );

        emit NFTSold(caller, nftId, membershipType, membershipTypeSerialId, nftPrice);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../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.
 *
 * By default, the owner account will be the one that deploys the contract. 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;

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

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @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 {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing 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 {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _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 v4.4.1 (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() {
        // On the first call to nonReentrant, _notEntered will be true
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

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

        _;

        // 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: 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 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 v4.7.0) (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 v4.7.0) (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 functionCall(target, data, "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");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason 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 {
            // 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);
            }
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @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;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (utils/math/SafeMath.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

interface IMarketplace {
    function buyToken(uint256 amount) external;

    function buyNFT(string memory membershipType) external;

    function setKangaPOSAddress(address kangaPOSAddress) external;

    function upsertNFTSaleTypeData(
        string memory membershipType,
        uint256 quantity,
        bool isEnabled,
        uint256 price,
        uint256 validity
    ) external;

    function remainingTokenSupply() external view returns (uint256);

    function remainingNFTSupplyByType(string memory membershipType) external view returns (uint256);

    function beTokensPriceInUSDT(uint256 amount) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

interface INFT {
    function mintNFT(
        address to,
        string memory membershipType,
        uint256 validity
    ) external returns (uint256, uint256);

    function soldNftsByDataType(string memory membershipType) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.17;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface ISaleToken is IERC20 {
    function currentRound() external view returns (uint256);

    function increaseAllowance(address spender, uint256 addedValue) external returns (bool);

    function burnFrom(address account, uint256 amount) external;
}

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

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"beTokenAddress","type":"address"},{"internalType":"address","name":"nftContract","type":"address"},{"internalType":"address","name":"usdtTokenAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"tokenAmount","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"exchangedTokenAmount","type":"uint256"}],"name":"BETokenBought","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"oldAddress","type":"address"},{"indexed":true,"internalType":"address","name":"newAddress","type":"address"}],"name":"KangaPOSAddressUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"string","name":"membershipType","type":"string"},{"indexed":false,"internalType":"uint256","name":"quantity","type":"uint256"},{"indexed":false,"internalType":"bool","name":"isEnabled","type":"bool"},{"indexed":false,"internalType":"uint256","name":"price","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"validity","type":"uint256"}],"name":"NFTSTypeForSaleDataUpdated","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"nftId","type":"uint256"},{"indexed":false,"internalType":"string","name":"membershipType","type":"string"},{"indexed":false,"internalType":"uint256","name":"membershipTypeSerialId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"price","type":"uint256"}],"name":"NFTSold","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"beTokensPriceInUSDT","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"membershipType","type":"string"}],"name":"buyNFT","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"buyToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"marketplaceSaleUnlock","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"","type":"string"}],"name":"nftsSaleDataByType","outputs":[{"internalType":"uint256","name":"quantity","type":"uint256"},{"internalType":"bool","name":"isEnabled","type":"bool"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint256","name":"validity","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"string","name":"membershipType","type":"string"}],"name":"remainingNFTSupplyByType","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"remainingTokenSupply","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"kangaPOS","type":"address"}],"name":"setKangaPOSAddress","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"unlockTime","type":"uint256"}],"name":"setMarketplaceUnlockTime","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"string","name":"membershipType","type":"string"},{"internalType":"uint256","name":"quantity","type":"uint256"},{"internalType":"bool","name":"isEnabled","type":"bool"},{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"uint256","name":"validity","type":"uint256"}],"name":"upsertNFTSaleTypeData","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

000000000000000000000000763a4c6ab1865e784ca0c4f5bb22ef453e6f727e000000000000000000000000ae0b9e0d1e91a12da214a3810b405368468a0907000000000000000000000000dac17f958d2ee523a2206206994597c13d831ec7

-----Decoded View---------------
Arg [0] : beTokenAddress (address): 0x763A4C6ab1865e784CA0c4f5bB22ef453E6F727E
Arg [1] : nftContract (address): 0xAE0B9e0D1e91A12Da214a3810B405368468a0907
Arg [2] : usdtTokenAddress (address): 0xdAC17F958D2ee523a2206206994597C13D831ec7

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 000000000000000000000000763a4c6ab1865e784ca0c4f5bb22ef453e6f727e
Arg [1] : 000000000000000000000000ae0b9e0d1e91a12da214a3810b405368468a0907
Arg [2] : 000000000000000000000000dac17f958d2ee523a2206206994597c13d831ec7