// File: @openzeppelin/contracts/utils/ReentrancyGuard.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/ReentrancyGuard.sol)
pragma solidity ^0.8.20;
/**
* @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;
/**
* @dev Unauthorized reentrant call.
*/
error ReentrancyGuardReentrantCall();
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
if (_status == ENTERED) {
revert ReentrancyGuardReentrantCall();
}
// 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;
}
/**
* @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
* `nonReentrant` function in the call stack.
*/
function _reentrancyGuardEntered() internal view returns (bool) {
return _status == ENTERED;
}
}
// File: @openzeppelin/contracts/utils/introspection/IERC165.sol
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)
pragma solidity ^0.8.20;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
// File: @openzeppelin/contracts/token/ERC721/IERC721.sol
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.20;
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
* a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or
* {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon
* a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the address zero.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// File: @openzeppelin/contracts/token/ERC20/IERC20.sol
// 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);
}
// File: Stake.sol
pragma solidity ^0.8.24;
/// @title NFTStakeContract
/// @dev This contract allows users to stake and unstake NFTs from BrewRiders and Sense of Shapes collections.
/// @author 777SenseLabs
contract NFTStakeContract is ReentrancyGuard {
address public owner;
address public brewRiders;
address public senseOfShapes;
uint256 public claimDuration = 7 days; // 1 week
uint256 public totalStakeNFT;
struct StakeInfo {
uint16[] tokenIds;
uint256[] timestamps;
}
mapping(address => mapping(address => StakeInfo)) stakes;
event Staked(
address indexed staker,
address indexed nftContract,
uint16[] tokenIds,
uint256[] timestamps
);
event Unstaked(
address indexed staker,
address indexed nftContract,
uint16 tokenId,
uint256 timestamp
);
/// @dev Sets the owner and NFT contract addresses.
constructor(address _brewRiders) {
owner = msg.sender;
brewRiders = _brewRiders;
}
/// @dev Modifier to ensure that the NFT contract address is either BrewRiders or Sense of Shapes.
modifier onlySupportedNFT(address nftContract) {
require(
nftContract == brewRiders || nftContract == senseOfShapes,
"Unsupported NFT contract"
);
require(nftContract != address(0), "NFT contract address not set");
_;
}
/// @dev Modifier to ensure that only the owner can call specific functions.
modifier onlyOwner() {
require(
msg.sender == owner,
"Only contract owner can perform this action"
);
_;
}
/// @dev Allows a user to stake multiple NFTs from the supported NFT collections.
/// @param nftContract The address of the NFT collection.
/// @param tokenIds The IDs of the tokens from the specified NFT collection to be staked.
function stake(
address nftContract,
uint16[] calldata tokenIds
) external onlySupportedNFT(nftContract) nonReentrant {
_stakeNFTs(nftContract, tokenIds);
}
/// @dev Internal function to stake NFTs for a specific collection.
function _stakeNFTs(
address nftContract,
uint16[] calldata tokenIds
) internal {
StakeInfo storage stakeInfo = stakes[msg.sender][nftContract];
for (uint16 i = 0; i < tokenIds.length; i++) {
require(
IERC721(nftContract).ownerOf(tokenIds[i]) == msg.sender,
"You are not the owner of this NFT"
);
stakeInfo.tokenIds.push(tokenIds[i]);
stakeInfo.timestamps.push(block.timestamp);
}
totalStakeNFT += tokenIds.length;
for (uint16 i = 0; i < tokenIds.length; i++) {
IERC721(nftContract).transferFrom(
msg.sender,
address(this),
tokenIds[i]
);
}
emit Staked(msg.sender, nftContract, tokenIds, stakeInfo.timestamps);
}
/// @dev Allows a user to unstake multiple NFTs from the supported NFT collection.
/// @param nftContract The address of the NFT collection.
/// @param tokenIds The IDs of the tokens to be unstaked.
function unstake(
address nftContract,
uint16[] calldata tokenIds
) external onlySupportedNFT(nftContract) nonReentrant {
for (uint16 j = 0; j < tokenIds.length; j++) {
StakeInfo storage stakeInfo = stakes[msg.sender][nftContract];
require(stakeInfo.tokenIds.length > 0, "No NFT staked");
bool found = false;
for (uint16 i = 0; i < stakeInfo.tokenIds.length; i++) {
if (stakeInfo.tokenIds[i] == tokenIds[j]) {
stakeInfo.tokenIds[i] = stakeInfo.tokenIds[
stakeInfo.tokenIds.length - 1
];
stakeInfo.tokenIds.pop();
stakeInfo.timestamps[i] = stakeInfo.timestamps[
stakeInfo.timestamps.length - 1
];
stakeInfo.timestamps.pop();
found = true;
break;
}
}
require(found, "Token not found among staked NFTs");
}
totalStakeNFT -= tokenIds.length;
for (uint16 j = 0; j < tokenIds.length; j++) {
IERC721(nftContract).transferFrom(
address(this),
msg.sender,
tokenIds[j]
);
emit Unstaked(msg.sender, nftContract, tokenIds[j], block.timestamp);
}
}
/// @dev Returns the stake info for a specific user and NFT collections.
/// @param user The address of the user.
/// @return brewRidersTokenIds The array of token IDs staked by the user in BrewRiders collection
/// @return brewRidersTimestamps The array of timestamps when the tokens were staked in BrewRiders collection.
/// @return senseOfShapesTokenIds The array of token IDs staked by the user in Sense of Shapes collection.
/// @return senseOfShapesTimestamps The array of timestamps when the tokens were staked in Sense of Shapes collection.
function getStakeInfo(
address user
)
external
view
returns (
uint16[] memory brewRidersTokenIds,
uint256[] memory brewRidersTimestamps,
uint16[] memory senseOfShapesTokenIds,
uint256[] memory senseOfShapesTimestamps
)
{
StakeInfo storage brewRidersStakeInfo = stakes[user][brewRiders];
StakeInfo storage senseOfShapesStakeInfo = stakes[user][senseOfShapes];
return (
brewRidersStakeInfo.tokenIds,
brewRidersStakeInfo.timestamps,
senseOfShapesStakeInfo.tokenIds,
senseOfShapesStakeInfo.timestamps
);
}
/// @dev Allows the contract owner to update the addresses of BrewRiders and Sense of Shapes contracts.
/// @param _brewRiders The new address of BrewRiders contract.
/// @param _senseOfShapes The new address of Sense of Shapes contract.
function updateNFTContracts(
address _brewRiders,
address _senseOfShapes
) external onlyOwner {
brewRiders = _brewRiders;
senseOfShapes = _senseOfShapes;
}
/// @dev Allows the contract owner to update the duration for unstaking NFTs.
/// @param _claimDuration The new duration for unstaking NFTs.
function updateUnstakeDuration(uint256 _claimDuration) external onlyOwner {
claimDuration = _claimDuration;
}
/// @dev Returns whether an NFT has been staked for the required duration.
/// @param staker The address of the user who staked the NFT.
/// @param nftContract The address of the NFT collection.
/// @param tokenId The ID of the token to check.
/// @return true if the NFT has been staked for the required duration, false otherwise.
function isStakeDurationReached(
address staker,
address nftContract,
uint16 tokenId
) public view onlySupportedNFT(nftContract) returns (bool) {
StakeInfo storage stakeInfo = stakes[staker][nftContract];
for (uint16 i = 0; i < stakeInfo.tokenIds.length; i++) {
if (stakeInfo.tokenIds[i] == tokenId) {
return
block.timestamp >= stakeInfo.timestamps[i] + claimDuration;
}
}
return false;
}
/// @dev Transfers the ownership of the contract to a new address.
/// @param newOwner The address of the new owner.
function transferOwnership(address newOwner) external onlyOwner {
require(newOwner != address(0), "Invalid address");
owner = newOwner;
}
/// @dev Allows the contract owner to withdraw tokens from the contract.
/// @param tokenAddress The address of the token to be withdrawn.
/// @param amount The amount of tokens to be withdrawn.
function ownerWithdraw(
address tokenAddress,
uint256 amount
) external onlyOwner nonReentrant {
if (isERC20(tokenAddress)) {
require(
amount <= IERC20(tokenAddress).balanceOf(address(this)),
"Not enough balance in the contract"
);
require(IERC20(tokenAddress).transfer(owner, amount), "Transfer failed");
} else if (isERC721(tokenAddress)) {
revert(
"ERC721 tokens cannot be withdrawn by the contract owner to prevent potential manipulation of users' NFTs"
);
} else {
revert("Unsupported token type");
}
}
/// @dev Checks if a given address represents an ERC20 token contract.
/// @param tokenAddress The address to be checked.
/// @return true if the address represents an ERC20 token contract, false otherwise.
function isERC20(address tokenAddress) internal view returns (bool) {
uint256 size;
assembly {
size := extcodesize(tokenAddress)
}
return size > 0 && IERC20(tokenAddress).totalSupply() > 0;
}
/// @dev Checks if a given address represents an ERC721 token contract.
/// @param tokenAddress The address to be checked.
/// @return true if the address represents an ERC721 token contract, false otherwise.
function isERC721(address tokenAddress) internal view returns (bool) {
uint256 size;
assembly {
size := extcodesize(tokenAddress)
}
return size > 0 && IERC721(tokenAddress).supportsInterface(0x80ac58cd);
}
/// @dev Returns NFTs that have been staked for a duration longer than claimDuration.
/// @param user The address of the user.
/// @return brewRidersNFTs The array of token IDs staked by the user in BrewRiders collection for a duration longer than claimDuration.
/// @return senseOfShapesNFTs The array of token IDs staked by the user in Sense of Shapes collection for a duration longer than claimDuration.
function getStakedNFTsWithClaimDuration(
address user
)
external
view
returns (uint16[] memory brewRidersNFTs, uint16[] memory senseOfShapesNFTs)
{
StakeInfo storage brewRidersStakeInfo = stakes[user][brewRiders];
StakeInfo storage senseOfShapesStakeInfo = stakes[user][senseOfShapes];
uint16[] memory _brewRidersNFTs = new uint16[](
brewRidersStakeInfo.tokenIds.length
);
uint16[] memory _senseOfShapesNFTs = new uint16[](
senseOfShapesStakeInfo.tokenIds.length
);
uint16 brewRidersCount = 0;
uint16 senseOfShapesCount = 0;
for (uint16 i = 0; i < brewRidersStakeInfo.tokenIds.length; i++) {
if (
block.timestamp >=
brewRidersStakeInfo.timestamps[i] + claimDuration
) {
_brewRidersNFTs[brewRidersCount] = brewRidersStakeInfo.tokenIds[
i
];
brewRidersCount++;
}
}
for (uint16 i = 0; i < senseOfShapesStakeInfo.tokenIds.length; i++) {
if (
block.timestamp >=
senseOfShapesStakeInfo.timestamps[i] + claimDuration
) {
_senseOfShapesNFTs[senseOfShapesCount] = senseOfShapesStakeInfo.tokenIds[i];
senseOfShapesCount++;
}
}
// Resize arrays to fit the actual count
assembly {
mstore(_brewRidersNFTs, brewRidersCount)
mstore(_senseOfShapesNFTs, senseOfShapesCount)
}
return (_brewRidersNFTs, _senseOfShapesNFTs);
}
}
{
"compilationTarget": {
"NFTStakeContract.sol": "NFTStakeContract"
},
"evmVersion": "shanghai",
"libraries": {},
"metadata": {
"bytecodeHash": "ipfs"
},
"optimizer": {
"enabled": false,
"runs": 200
},
"remappings": []
}
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