Contract Name:
StakingOriginals
Contract Source Code:
// @author: @gizmolab_
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
contract StakingOriginals is Ownable {
bool public stakingEnabled = false;
uint256 public totalStaked;
uint256 public baseReward = 10;
address public theOriginalsContract = 0x3A1561Ef33515BBA77A4df88D80aFA9D363900E1;
struct Stake {
uint256 tokenId; // 32bits
uint256 timestamp; // 32bits
uint256 lockingTier;
}
struct lockingTier {
uint256 lockDays;
uint256 multiplier;
}
mapping(uint256 => lockingTier) public lockingTiers;
mapping(address => Stake[]) public stakedTokens;
mapping(uint256 => uint256) public tokenRewards;
event NFTStaked(
address owner,
address tokenAddress,
uint256 tokenId,
uint256 value,
uint256 lockingTier
);
event NFTUnstaked(
address owner,
address tokenAddress,
uint256 tokenId,
uint256 value,
uint256 lockingTier
);
constructor() Ownable(msg.sender) {
lockingTiers[0] = lockingTier(0, 100); // 1x multiplier (represented as 100)
lockingTiers[1] = lockingTier(30 days, 120); // 1.2x multiplier
lockingTiers[2] = lockingTier(60 days, 140); // 1.4x multiplier
lockingTiers[3] = lockingTier(90 days, 160); // 1.6x multiplier
lockingTiers[4] = lockingTier(180 days, 200); // 2x multiplier
}
/*==============================================================
== User Staking Functions ==
==============================================================*/
function stakeNfts(
address _contract,
uint256 _lockingTier,
uint256[] calldata tokenIds
) external {
require(stakingEnabled == true, "Staking is not enabled yet.");
IERC721 nftContract = IERC721(_contract);
for (uint256 i; i < tokenIds.length; i++) {
require(
nftContract.ownerOf(tokenIds[i]) == msg.sender,
"You do not own this token"
);
nftContract.transferFrom(msg.sender, address(this), tokenIds[i]);
stakedTokens[msg.sender].push(
Stake(tokenIds[i], block.timestamp, _lockingTier)
);
emit NFTStaked(
msg.sender,
_contract,
tokenIds[i],
block.timestamp,
_lockingTier
);
totalStaked++;
}
}
function unstakeNfts(
address _contract,
uint256[] calldata tokenIds
) external {
require(stakingEnabled == true, "Staking is not enabled yet.");
IERC721 nftContract = IERC721(_contract);
for (uint256 i; i < tokenIds.length; i++) {
bool isTokenOwner = false;
uint256 stakeIndex = 0;
for (uint256 j = 0; j < stakedTokens[msg.sender].length; j++) {
if (stakedTokens[msg.sender][j].tokenId == tokenIds[i]) {
isTokenOwner = true;
stakeIndex = j;
break;
}
}
require(isTokenOwner, "You do not own this Token");
Stake memory stake = stakedTokens[msg.sender][stakeIndex];
uint256 lockPeriod = lockingTiers[stake.lockingTier].lockDays;
require(
block.timestamp >= stake.timestamp + lockPeriod,
"Locking period not over"
);
// Calculate rewards only for locked tokens
if (stake.lockingTier > 0) {
uint256 rewardAmount = _calculateUnstakeRewards(
msg.sender,
tokenIds[i]
);
tokenRewards[tokenIds[i]] += rewardAmount;
}
nftContract.transferFrom(address(this), msg.sender, tokenIds[i]);
// Remove the stake from the user's array
stakedTokens[msg.sender][stakeIndex] = stakedTokens[msg.sender][
stakedTokens[msg.sender].length - 1
];
stakedTokens[msg.sender].pop();
totalStaked--;
emit NFTUnstaked(
msg.sender,
_contract,
tokenIds[i],
block.timestamp,
stake.lockingTier
);
}
}
/*==============================================================
== Burn Function ==
==============================================================*/
/*==============================================================
== Public Get Functions ==
==============================================================*/
function getStakedTokens(
address _user
) external view returns (uint256[] memory) {
Stake[] memory userStakes = stakedTokens[_user];
uint256[] memory tokenIds = new uint256[](userStakes.length);
for (uint256 i = 0; i < userStakes.length; i++) {
tokenIds[i] = userStakes[i].tokenId;
}
return tokenIds;
}
function getStakedTokensLength(
address _user
) external view returns (uint256) {
return stakedTokens[_user].length;
}
function getUserRewards(
address _user,
uint256[] memory _tokenIds
) external view returns (uint256) {
uint256 totalRewards = 0;
// Get all staked tokens for the user
Stake[] memory userStakes = stakedTokens[_user];
uint256[] memory stakedTokenIds = new uint256[](userStakes.length);
for (uint256 i = 0; i < userStakes.length; i++) {
stakedTokenIds[i] = userStakes[i].tokenId;
}
// Calculate rewards for staked tokens
totalRewards += _calculateRewards(_user, stakedTokenIds);
// Add rewards for all tokens (staked and unstaked)
for (uint256 i = 0; i < _tokenIds.length; i++) {
totalRewards += tokenRewards[_tokenIds[i]];
}
return totalRewards;
}
/*==============================================================
== Owner Functions ==
==============================================================*/
function setStakingEnabled(bool _enabled) external onlyOwner {
stakingEnabled = _enabled;
}
function setBaseReward(uint256 _reward) external onlyOwner {
baseReward = _reward;
}
function setTheOriginalsContract(address _contract) external onlyOwner {
theOriginalsContract = _contract;
}
function setLockingTiers(
uint256 _tier,
uint256 _lockDays,
uint256 _multiplier
) external onlyOwner {
lockingTiers[_tier] = lockingTier(_lockDays, _multiplier);
}
/*==============================================================
== Reward Calculate Functions ==
==============================================================*/
function _calculateRewards(
address _user,
uint256[] memory _tokenIds
) internal view returns (uint256) {
uint256 totalReward = 0;
for (uint256 i = 0; i < _tokenIds.length; i++) {
uint256 tokenId = _tokenIds[i];
// Find the stake for this token ID
Stake memory stake;
bool found = false;
for (uint256 j = 0; j < stakedTokens[_user].length; j++) {
if (stakedTokens[_user][j].tokenId == tokenId) {
stake = stakedTokens[_user][j];
found = true;
break;
}
}
require(found, "Stake not found for token");
uint256 timeSinceLastClaim = block.timestamp - stake.timestamp;
uint256 lockingMultiplier = lockingTiers[stake.lockingTier]
.multiplier;
// Calculate new reward since last claim
uint256 reward = (timeSinceLastClaim *
baseReward *
lockingMultiplier) / (100 * 1 days);
totalReward += reward;
}
return totalReward;
}
function _calculateUnstakeRewards(
address _user,
uint256 _tokenId
) internal view returns (uint256) {
// Find the stake for this token ID
Stake memory stake;
bool found = false;
for (uint256 j = 0; j < stakedTokens[_user].length; j++) {
if (stakedTokens[_user][j].tokenId == _tokenId) {
stake = stakedTokens[_user][j];
found = true;
break;
}
}
require(found, "Stake not found for token");
uint256 reward = 0;
if (stake.lockingTier > 0) {
uint256 lockPeriod = lockingTiers[stake.lockingTier].lockDays;
if (block.timestamp >= stake.timestamp + lockPeriod) {
uint256 timeSinceStake = block.timestamp - stake.timestamp;
uint256 rewardPeriod = timeSinceStake - lockPeriod;
uint256 rewardPerToken = baseReward;
uint256 lockingMultiplier = lockingTiers[stake.lockingTier]
.multiplier;
reward =
(rewardPeriod * rewardPerToken * lockingMultiplier) /
(100 * 1 days);
}
}
return reward;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
pragma solidity ^0.8.20;
import {Context} from "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* The initial owner is set to the address provided by the deployer. This can
* later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
/**
* @dev The caller account is not authorized to perform an operation.
*/
error OwnableUnauthorizedAccount(address account);
/**
* @dev The owner is not a valid owner account. (eg. `address(0)`)
*/
error OwnableInvalidOwner(address owner);
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the address provided by the deployer as the initial owner.
*/
constructor(address initialOwner) {
if (initialOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(initialOwner);
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
if (owner() != _msgSender()) {
revert OwnableUnauthorizedAccount(_msgSender());
}
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby disabling any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
if (newOwner == address(0)) {
revert OwnableInvalidOwner(address(0));
}
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.20;
import {IERC165} from "../../utils/introspection/IERC165.sol";
/**
* @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);
}
// SPDX-License-Identifier: MIT
// 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);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
pragma solidity ^0.8.20;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
function _contextSuffixLength() internal view virtual returns (uint256) {
return 0;
}
}