// SPDX-License-Identifier: MIT pragma solidity ^0.8.17; import "@openzeppelin/contracts/utils/cryptography/ECDSA.sol"; import "@openzeppelin/contracts/utils/Strings.sol"; import "@openzeppelin/contracts/access/Ownable.sol"; import "@openzeppelin/contracts/access/AccessControl.sol"; import "@openzeppelin/contracts/token/common/ERC2981.sol"; import "erc721a/contracts/extensions/ERC721ABurnable.sol"; import "operator-filter-registry/src/DefaultOperatorFilterer.sol"; contract HabboRooms is ERC721ABurnable, ERC2981, Ownable, AccessControl, DefaultOperatorFilterer { using ECDSA for bytes32; using Strings for uint256; error EndTimeIsInThePast(); error StartTimeIsHigherThanEndTime(); error PriceShouldBeSameOrLower(); error IntervalCanNotBeZero(); error TotalCanNotBeZero(); error PurchaseLimitCanNotBeZero(); error OrderLimitCanNotBeZero(); error GroupKeyCanNotBeEmpty(); error RoomKeyCanNotBeEmpty(); error InvalidSignature(); error InvalidListingId(); error ListingNotStarted(); error ListingHasFinished(); error InvalidEthAmount(); error ExceededPurchaseLimit(); error ExceededListingPurchaseLimit(); error ExceededMintLimit(); error ExceededOrderLimit(); error OrderLimitOverPurchaseListingLimit(); error PurchaseLimitOverTotalMintLimit(); error PurchaseListingLimitCanNotBeZero(); error ListingMarkedInvalid(); error ListingGroupMarkedInvalid(); error QuantityCanNotBeZero(); // File extension for metadata file string private constant _EXTENSION = ".json"; // Role for signature minters bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE"); // The base domain for the tokenURI string private _baseTokenURI; event RoomMinted(uint startTokenId, uint endTokenId, string roomKey); struct ListingGroup { uint totalMintLimit; // total amount of mints in this group uint totalMinted; uint purchaseLimit; // total amount one can purchase in a group of sales bool valid; // if wrong information was inputted we can mark listing group invalid } mapping(string => ListingGroup) public listingGroups; struct Listing { string roomKey; string groupKey; uint startTime; uint endTime; uint startPrice; uint finalPrice; uint intervals; // steps between start and final price uint purchaseListingLimit; // total amount one can purchase from this sale uint orderLimit; // total amount one can purchase every transaction bool valid; // if wrong information was inputted we can mark listing invalid } Listing[] public listings; function listingsLength() public view returns(uint count) { return listings.length; } mapping(string => mapping(address => uint)) public purchasedAmounts; mapping(uint => mapping(address => uint)) public listingPurchasedAmounts; constructor(string memory baseURI, address mintSigner) ERC721A("Habbo Rooms", "HABXROOM") Ownable() { setBaseURI(baseURI); setRoyaltyInfo(payable(owner()), 500); _setupRole(DEFAULT_ADMIN_ROLE, msg.sender); _setupRole(MINTER_ROLE, mintSigner); } function createListingGroup( string calldata groupKey, uint totalMintLimit, uint purchaseLimit ) external onlyOwner returns (ListingGroup memory lg) { if (bytes(groupKey).length <= 0) revert GroupKeyCanNotBeEmpty(); if (totalMintLimit <= 0) revert TotalCanNotBeZero(); if (purchaseLimit <= 0) revert PurchaseLimitCanNotBeZero(); if (purchaseLimit > totalMintLimit) revert PurchaseLimitOverTotalMintLimit(); lg = ListingGroup({ totalMintLimit: totalMintLimit, totalMinted: 0, purchaseLimit: purchaseLimit, valid: true }); listingGroups[groupKey] = lg; } function addListing( string calldata roomKey, string calldata groupKey, uint startTime, uint endTime, uint startPrice, uint finalPrice, uint intervals, uint purchaseListingLimit, uint orderLimit ) external onlyOwner returns (Listing memory l, uint listingId) { if (bytes(roomKey).length <= 0) revert RoomKeyCanNotBeEmpty(); if (bytes(groupKey).length <= 0) revert GroupKeyCanNotBeEmpty(); if (block.timestamp >= endTime) revert EndTimeIsInThePast(); if (startTime >= endTime) revert StartTimeIsHigherThanEndTime(); if (finalPrice > startPrice) revert PriceShouldBeSameOrLower(); if (intervals <= 0) revert IntervalCanNotBeZero(); if (purchaseListingLimit <= 0) revert PurchaseListingLimitCanNotBeZero(); if (orderLimit <= 0) revert OrderLimitCanNotBeZero(); if (orderLimit > purchaseListingLimit) revert OrderLimitOverPurchaseListingLimit(); l = Listing({ roomKey: roomKey, groupKey: groupKey, startTime: startTime, endTime: endTime, startPrice: startPrice, finalPrice: finalPrice, intervals: intervals, purchaseListingLimit: purchaseListingLimit, orderLimit: orderLimit, valid: true }); listings.push(l); listingId = listings.length - 1; } function markListingInvalid(uint listingId) external onlyOwner { if (listingId >= listings.length || !listings[listingId].valid) revert InvalidListingId(); Listing storage l = listings[listingId]; l.valid = false; } function markListingGroupInvalid(string memory groupKey) external onlyOwner { ListingGroup storage lg = listingGroups[groupKey]; if (!lg.valid) revert InvalidListingId(); lg.valid = false; } function mint(uint quantity, uint listingId, bytes calldata signature) external payable { if (quantity <= 0) revert QuantityCanNotBeZero(); if (!verifySignature(signature, getTransactionHash(msg.sender, listingId))) revert InvalidSignature(); if (listingId >= listings.length) revert InvalidListingId(); Listing storage l = listings[listingId]; if (!l.valid) revert ListingMarkedInvalid(); ListingGroup storage lg = listingGroups[l.groupKey]; if (!lg.valid) revert ListingGroupMarkedInvalid(); if (block.timestamp < l.startTime) revert ListingNotStarted(); if (block.timestamp > l.endTime) revert ListingHasFinished(); uint currentPrice = getPriceByListing(l) * quantity; if (msg.value < currentPrice) revert InvalidEthAmount(); if (quantity > l.orderLimit) revert ExceededOrderLimit(); if (listingPurchasedAmounts[listingId][msg.sender] + quantity > l.purchaseListingLimit) revert ExceededListingPurchaseLimit(); if (purchasedAmounts[l.groupKey][msg.sender] + quantity > lg.purchaseLimit) revert ExceededPurchaseLimit(); if (lg.totalMinted + quantity > lg.totalMintLimit) revert ExceededMintLimit(); purchasedAmounts[l.groupKey][msg.sender] += quantity; listingPurchasedAmounts[listingId][msg.sender] += quantity; lg.totalMinted += quantity; mintTokens(quantity, msg.sender, l.roomKey); } function ownerMint(uint quantity, address to, string calldata roomKey) external onlyOwner { mintTokens(quantity, to, roomKey); } function withdrawFunds() external onlyOwner { uint balance = address(this).balance; (bool success,) = payable(msg.sender).call{value: balance}(""); require(success, "WITHDRAWAL_FAILED"); } function mintTokens(uint quantity, address to, string memory roomKey) private { uint startTokenId = _nextTokenId(); uint endTokenId = startTokenId + quantity - 1; _safeMint(to, quantity); emit RoomMinted(startTokenId, endTokenId, roomKey); } function getPriceByListingAtTimestamp(Listing memory l, uint timestamp) public view onlyOwner returns (uint) { return _getPriceByListingAtTimestamp(l, timestamp); } function getPriceByListing(Listing memory l) public view returns (uint) { return _getPriceByListingAtTimestamp(l, block.timestamp); } function getPriceByListingIdAtTimestamp(uint index, uint timestamp) public view onlyOwner returns (uint) { return _getPriceByListingAtTimestamp(listings[index], timestamp); } function getPriceByListingId(uint index) public view returns (uint) { return _getPriceByListingAtTimestamp(listings[index], block.timestamp); } function _getPriceByListingAtTimestamp(Listing memory l, uint timestamp) private pure returns (uint) { if (l.startTime >= timestamp) { return l.startPrice; } if (timestamp >= l.endTime) { return l.finalPrice; } uint timeInterval = (l.endTime - l.startTime) / l.intervals; uint priceInterval = (l.startPrice - l.finalPrice) / l.intervals; uint intervalsComplete = (timestamp - l.startTime) / timeInterval; return l.startPrice - intervalsComplete * priceInterval; } function setRoyaltyInfo(address payable receiver, uint96 numerator) public onlyOwner { _setDefaultRoyalty(receiver, numerator); } function tokenURI(uint256 tokenId) public view override (ERC721A, IERC721A) returns (string memory) { return string(abi.encodePacked(_baseURI(), tokenId.toString(), _EXTENSION)); } function _baseURI() internal view virtual override returns (string memory) { return _baseTokenURI; } function setBaseURI(string memory baseURI) public onlyOwner { _baseTokenURI = baseURI; } function _startTokenId() internal override pure returns (uint256) { return 1; } function getTransactionHash(address to, uint listingId) public view returns (bytes32) { return keccak256(abi.encodePacked(address(this), to, listingId)); } function verifySignature(bytes memory signature, bytes32 transactionHash) private view returns (bool) { address signer = transactionHash.toEthSignedMessageHash().recover(signature); return owner() == signer || hasRole(MINTER_ROLE, signer); } function supportsInterface(bytes4 interfaceId) public view virtual override(ERC721A, IERC721A, ERC2981, AccessControl) returns (bool) { return ERC721A.supportsInterface(interfaceId) || ERC2981.supportsInterface(interfaceId); } /* OPERATOR FILTERER overrides */ function setApprovalForAll(address operator, bool approved) public override (ERC721A, IERC721A) onlyAllowedOperatorApproval(operator) { super.setApprovalForAll(operator, approved); } function approve(address operator, uint256 tokenId) public payable override (ERC721A, IERC721A) onlyAllowedOperatorApproval(operator) { super.approve(operator, tokenId); } function transferFrom(address from, address to, uint256 tokenId) public payable override (ERC721A, IERC721A) onlyAllowedOperator(from) { super.transferFrom(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId) public payable override (ERC721A, IERC721A) onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId); } function safeTransferFrom(address from, address to, uint256 tokenId, bytes memory data) public payable override (ERC721A, IERC721A) onlyAllowedOperator(from) { super.safeTransferFrom(from, to, tokenId, data); } }

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