Contract Name:
Sidus721Staking
Contract Source Code:
// SPDX-License-Identifier: MIT
// Sidus Heroes Staking
pragma solidity 0.8.11;
import "Ownable.sol";
import "IERC721.sol";
import "IERC721Receiver.sol";
contract Sidus721Staking is Ownable, IERC721Receiver {
//using ECDSA for bytes32;
// pool struct
struct PoolInfo {
address contractAddress; // erc721 contract address
uint256 period; // stake period.cant claim during stake!
uint256 activeAfter; // date of start staking
uint256 closedAfter; // date of end staking
}
// user struct
struct UserInfo {
uint256 tokenId; // subj
uint256 stakedAt; // moment of stake
uint256 period; // period in seconds
uint256 unStaked; // date of unstaked
}
PoolInfo[] public pools;
// maping from user to poolId to tokenId
mapping(address => mapping(uint256 => UserInfo[])) public userStakes;
/// Emit in case of any changes: stake or unstake for now
/// 0 - Staked
/// 1 - Unstaked
event StakeChanged(
address indexed user,
uint256 indexed poolId,
uint8 indexed changeType,
uint256 tokenId,
uint256 timestamp
);
function deposit(uint256 poolId, uint256 tokenId) external {
_deposit(msg.sender, poolId, tokenId);
}
function depositBatch(uint256 poolId, uint256[] memory tokenIds) external {
_depositBatch(msg.sender, poolId, tokenIds);
}
function withdraw(uint256 _poolId, uint256 _tokenId) external {
// lets get tokenId index
uint256 _tokenIndex = _getTokenIndexByTokenId(msg.sender, _poolId, _tokenId);
_withdraw(msg.sender, _poolId, _tokenIndex);
}
function withdrawBatch(uint256 _poolId) external {
for (uint256 i = 0; i < userStakes[msg.sender][_poolId].length; i ++) {
if (userStakes[msg.sender][_poolId][i].unStaked == 0) {
_withdraw(msg.sender, _poolId, i);
}
}
}
function getUserStakeInfo(address _user, uint256 _poolId) public view returns(UserInfo[] memory) {
return userStakes[_user][_poolId];
}
function getUserStakeByIndex(address _user, uint256 _poolId, uint256 _index) public view returns(UserInfo memory) {
return userStakes[_user][_poolId][_index];
}
function getUserStakeCount(address _user, uint256 _poolId) public view returns(uint256) {
return userStakes[_user][_poolId].length;
}
function getUserActiveStakesCount(address _user, uint256 _poolId) public view returns(uint256) {
return _getUserActiveStakesCount(_user, _poolId);
}
////////////////////////////////////////////////////////////
/////////// Admin only ////////////////////////////
////////////////////////////////////////////////////////////
function addPool(
address _contract,
uint256 _period,
uint256 _activeAfter,
uint256 _closedAfter
) public onlyOwner {
pools.push(
PoolInfo({
contractAddress: _contract, // erc721 contract address
period: _period, // stake period.cant claim during stake!
activeAfter: _activeAfter, // date of start staking
closedAfter: _closedAfter // date of end staking
})
);
}
function editPool(
uint256 _poolId,
address _contract,
uint256 _period,
uint256 _activeAfter,
uint256 _closedAfter
) public onlyOwner {
pools[_poolId].contractAddress = _contract; // erc721 contract address
pools[_poolId].period = _period; // stake period.cant claim during stake!
pools[_poolId].activeAfter = _activeAfter; // date of start staking
pools[_poolId].closedAfter = _closedAfter; // date of end staking
}
function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data
) external override returns (bytes4) {
return IERC721Receiver.onERC721Received.selector;
}
////////////////////////////////////////////////////////////
/////////// internal /////////////////////////////
////////////////////////////////////////////////////////////
function _depositBatch(address _user, uint256 _poolId, uint256[] memory _tokenId) internal {
for(uint256 i = 0; i < _tokenId.length; i ++) {
_deposit(_user, _poolId, _tokenId[i]);
}
}
function _deposit(address _user, uint256 _poolId, uint256 _tokenId) internal {
require(pools[_poolId].activeAfter < block.timestamp, "Pool not active yet");
require(pools[_poolId].closedAfter > block.timestamp, "Pool is closed");
//TokenInfo[] storage theS = userStakes[_user][_poolId];
userStakes[_user][_poolId].push(
UserInfo({
tokenId: _tokenId,
stakedAt:block.timestamp, // moment of stake
period: pools[_poolId].period, // period in seconds
unStaked: 0 // date of unstaked(close stake flag)
}));
IERC721 nft = IERC721(pools[_poolId].contractAddress);
nft.transferFrom(address(_user), address(this), _tokenId);
emit StakeChanged(_user, _poolId, 0, _tokenId, block.timestamp);
}
function _withdraw(address _user, uint256 _poolId, uint256 _tokenIndex) internal {
require(
userStakes[_user][_poolId][_tokenIndex].stakedAt
+ userStakes[_user][_poolId][_tokenIndex].period < block.timestamp,
"Sorry, too early for withdraw"
);
require(
userStakes[_user][_poolId][_tokenIndex].unStaked == 0,
"Already unstaked"
);
userStakes[_user][_poolId][_tokenIndex].unStaked = block.timestamp;
IERC721 nft = IERC721(pools[_poolId].contractAddress);
nft.transferFrom(address(this), _user, userStakes[_user][_poolId][_tokenIndex].tokenId);
emit StakeChanged(_user, _poolId, 1, userStakes[_user][_poolId][_tokenIndex].tokenId, block.timestamp);
}
function _getUserActiveStakesCount(address _user, uint256 _poolId)
internal
view
returns (uint256 count)
{
for (uint256 i = 0; i < userStakes[_user][_poolId].length; i ++) {
if (userStakes[_user][_poolId][i].unStaked == 0) {
count ++;
}
}
}
function _getTokenIndexByTokenId(address _user, uint256 _poolId, uint256 _tokenId)
internal
view
returns (uint256)
{
for (uint256 i = 0; i < userStakes[_user][_poolId].length; i ++ ) {
if (userStakes[_user][_poolId][i].tokenId == _tokenId &&
userStakes[_user][_poolId][i].unStaked == 0 //only active stakes
)
{
return i;
}
}
revert("Token not found");
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (access/Ownable.sol)
pragma solidity ^0.8.0;
import "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 Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
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 (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 v4.4.1 (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "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`, 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 be 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: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* 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 Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @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 caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @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);
/**
* @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;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @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 v4.4.1 (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}