Source Code
Overview
POL Balance
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Latest 25 from a total of 810 transactions
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Create Listing | 17928849 | 39 hrs ago | IN | 0 POL | 0.00877026 | ||||
Relist | 17912663 | 2 days ago | IN | 0 POL | 0.00402465 | ||||
Create Listing | 17753372 | 6 days ago | IN | 0 POL | 0.00876954 | ||||
Delete Listing | 17753222 | 6 days ago | IN | 0 POL | 0.00255 | ||||
Relist | 17703668 | 7 days ago | IN | 0 POL | 0.0416465 | ||||
Buy Room Batch | 17535205 | 11 days ago | IN | 0 POL | 0.0940475 | ||||
Create Listing | 17483342 | 12 days ago | IN | 0 POL | 0.00489813 | ||||
Create Listing | 17483317 | 12 days ago | IN | 0 POL | 0.00489813 | ||||
Create Listing | 17473922 | 13 days ago | IN | 0 POL | 0.0163271 | ||||
Create Listing | 17345540 | 16 days ago | IN | 0 POL | 0.00516306 | ||||
Create Listing | 17345419 | 16 days ago | IN | 0 POL | 0.00516306 | ||||
Create Listing | 17345106 | 16 days ago | IN | 0 POL | 0.00516344 | ||||
Delete Listing | 17287752 | 17 days ago | IN | 0 POL | 0.00947616 | ||||
Relist | 17287647 | 17 days ago | IN | 0 POL | 0.01857172 | ||||
Create Listing | 17287613 | 17 days ago | IN | 0 POL | 0.03640162 | ||||
Buy Room Batch | 17136876 | 22 days ago | IN | 0 POL | 0.00748053 | ||||
Buy Room Batch | 17061357 | 23 days ago | IN | 0 POL | 0.00655623 | ||||
Create Listing | 17055679 | 24 days ago | IN | 0 POL | 0.00619613 | ||||
Create Listing | 16985793 | 25 days ago | IN | 0 POL | 0.00772438 | ||||
Create Listing | 16845749 | 29 days ago | IN | 0 POL | 0.04226153 | ||||
Relist | 16841681 | 29 days ago | IN | 0 POL | 0.00560095 | ||||
Create Listing | 16841617 | 29 days ago | IN | 0 POL | 0.01358226 | ||||
Buy Room Batch | 16779119 | 30 days ago | IN | 0 POL | 0.04094807 | ||||
Buy Room Batch | 16630747 | 34 days ago | IN | 0 POL | 0.00564285 | ||||
Create Listing | 16617683 | 34 days ago | IN | 0 POL | 0.00489777 |
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Contract Name:
Marketplace
Compiler Version
v0.8.19+commit.7dd6d404
Optimization Enabled:
Yes with 10000 runs
Other Settings:
default evmVersion
Contract Source Code (Solidity Standard Json-Input format)
// SPDX-License-Identifier: MIT pragma solidity =0.8.19; import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol"; import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol"; import { AccessControl } from "@openzeppelin/contracts/access/AccessControl.sol"; import { Context } from "@openzeppelin/contracts/utils/Context.sol"; import { IMarketplace } from "contracts/Marketplace/IMarketplace.sol"; import { IBukProtocol } from "contracts/BukProtocol/IBukProtocol.sol"; import { IBukNFTs } from "contracts/BukNFTs/IBukNFTs.sol"; import { Strings } from "@openzeppelin/contracts/utils/Strings.sol"; import { Pausable } from "@openzeppelin/contracts/security/Pausable.sol"; contract Marketplace is Context, IMarketplace, AccessControl, Pausable { // Using safeERC20 using SafeERC20 for IERC20; /** * @dev Constant for the role of the admin * @notice its a hash of keccak256("ADMIN_ROLE") */ bytes32 public constant ADMIN_ROLE = 0xa49807205ce4d355092ef5a8a18f56e8913cf4a201fbe287825b095693c21775; /** * @dev Constant for the role of the Buk Protocol contract * @notice its a hash of keccak256("BUK_PROTOCOL_ROLE") */ bytes32 public constant BUK_PROTOCOL_ROLE = 0xc90056e279113999fe5438fedaf4c98ded59812067ad79dd0c968b1a84dc7c97; /// @dev Constant address Buk Protocol contract IBukProtocol private _bukProtocolContract; /// @dev Constant address Buk NFT contract IBukNFTs private _bukNFTContract; /// @dev Currency used for transaction IERC20 private _stableToken; /** * @dev mapping(uint256 => ListingDetails) _listedNFT Captures listed bookings for sale */ mapping(uint256 => ListingDetails) private _listedNFT; /** * @dev Constructor to initialize the contract * @param _bukProtocolAddress address of Buk protocol * @param _bukNFTAddress address of Buk NFT * @param _tokenAddress address of the stable token */ constructor( address _bukProtocolAddress, address _bukNFTAddress, address _tokenAddress ) { _setStableToken(_tokenAddress); _setBukProtocol(_bukProtocolAddress); _setBukNFT(_bukNFTAddress); // Updating permission _grantRole(DEFAULT_ADMIN_ROLE, _msgSender()); _grantRole(ADMIN_ROLE, _msgSender()); } /// @dev See {IMarketplace-pause}. function pause() external onlyRole(ADMIN_ROLE) { _pause(); } /// @dev See {IMarketplace-unpause}. function unpause() external onlyRole(ADMIN_ROLE) { _unpause(); } /// @dev Refer {IMarketplace-createListing}. function createListing( uint256 _tokenId, uint256 _price ) external whenNotPaused { require(!isBookingListed(_tokenId), "NFT already listed"); IBukProtocol.Booking memory bookingDetails = _bukProtocolContract .getBookingDetails(_tokenId); require( _price >= bookingDetails.minSalePrice, "Minimum price requirement not met" ); require( bookingDetails.status == IBukProtocol.BookingStatus.confirmed && bookingDetails.tradeable, "Only tradable if available" ); require( _bukNFTContract.balanceOf(_msgSender(), _tokenId) == 1, "Only owner can list" ); require( _bukNFTContract.isApprovedForAll(_msgSender(), address(this)), "Approve marketplace for trade" ); require( block.timestamp < (bookingDetails.checkin - (bookingDetails.tradeTimeLimit * 3600)), "Trade limit time crossed" ); _listedNFT[_tokenId] = ListingDetails( _price, _msgSender(), _listedNFT[_tokenId].index + 1, ListingStatus.active ); emit ListingCreated(_msgSender(), _tokenId, _price); } /// @dev Refer {IMarketplace-deleteListing}. function deleteListing(uint256 _tokenId) external whenNotPaused { require(isBookingListed(_tokenId), "NFT not listed"); require( _bukNFTContract.balanceOf(_msgSender(), _tokenId) == 1 || hasRole(BUK_PROTOCOL_ROLE, _msgSender()), "Owner or Buk protocol can delete" ); uint256 listingIndex = _listedNFT[_tokenId].index; delete _listedNFT[_tokenId]; _listedNFT[_tokenId].index = listingIndex + 1; emit DeletedListing(_tokenId); } /// @dev Refer {IMarketplace-relist}. function relist( uint256 _tokenId, uint256 _newPrice ) external whenNotPaused { require(isBookingListed(_tokenId), "NFT not listed"); IBukProtocol.Booking memory bookingDetails = _bukProtocolContract .getBookingDetails(_tokenId); require( _bukNFTContract.balanceOf(_msgSender(), _tokenId) == 1, "Only owner can relist" ); require( bookingDetails.status == IBukProtocol.BookingStatus.confirmed, "Tradeable if available" ); require( _newPrice >= bookingDetails.minSalePrice, "Minimum price requirement not met" ); uint256 oldPrice = _listedNFT[_tokenId].price; _listedNFT[_tokenId].status = ListingStatus.active; _listedNFT[_tokenId].price = _newPrice; _listedNFT[_tokenId].index = _listedNFT[_tokenId].index + 1; emit Relisted(_tokenId, oldPrice, _newPrice); } /// @dev Refer {IMarketplace-buyRoom}. function buyRoom(uint256 _tokenId) external whenNotPaused { require( _listedNFT[_tokenId].status == ListingStatus.active, "NFT not listed" ); _buy(_tokenId); } /// @dev Refer {IMarketplace-buyRoomBatch}. function buyRoomBatch(uint256[] calldata _tokenIds) external whenNotPaused { uint256 len = _tokenIds.length; for (uint256 i = 0; i < len; ) { require( _listedNFT[_tokenIds[i]].status == ListingStatus.active, "NFT not listed" ); _buy(_tokenIds[i]); unchecked { i += 1; } } } /// @dev Refer {IMarketplace-setBukProtocol}. function setBukProtocol( address _bukProtocol ) external onlyRole(ADMIN_ROLE) { _setBukProtocol(_bukProtocol); } /// @dev Refer {IMarketplace-setBukNFT}. function setBukNFT(address _bukNFT) external onlyRole(ADMIN_ROLE) { _setBukNFT(_bukNFT); } /// @dev Refer {IMarketplace-setStableToken}. function setStableToken( address _tokenAddress ) external onlyRole(ADMIN_ROLE) { _setStableToken(_tokenAddress); } /// @dev Refer {IMarketplace-getStableToken}. function getStableToken() external view returns (address) { return address(_stableToken); } /// @dev Refer {IMarketplace-getBukProtocol}. function getBukProtocol() external view returns (address) { return address(_bukProtocolContract); } /// @dev Refer {IMarketplace-getBukNFT}. function getBukNFT() external view returns (address) { return address(_bukNFTContract); } /// @dev Refer {IMarketplace-getListingDetails}. function getListingDetails( uint256 _tokenId ) external view returns (ListingDetails memory) { return _listedNFT[_tokenId]; } /// @dev Refer {IMarketplace-isBookingListed}. function isBookingListed(uint256 _tokenId) public view returns (bool) { return _listedNFT[_tokenId].price > 0 ? true : false; } /// @dev Function sets new Buk NFT address function _setBukNFT(address _bukNFT) private { require(_bukNFT != address(0), "Invalid address"); _bukNFTContract = IBukNFTs(_bukNFT); emit BukNFTSet(_bukNFT); } /** * @dev Function sets new Buk protocol address * @param _bukProtocol New Buk protocol address */ function _setBukProtocol(address _bukProtocol) private { require(_bukProtocol != address(0), "Invalid address"); address oldAddress = address(_bukProtocolContract); _bukProtocolContract = IBukProtocol(_bukProtocol); _grantRole(BUK_PROTOCOL_ROLE, address(_bukProtocol)); _revokeRole(BUK_PROTOCOL_ROLE, address(oldAddress)); emit BukProtocolSet(_bukProtocol); } /// @param _tokenAddress New stable token address function _setStableToken(address _tokenAddress) private { require(_tokenAddress != address(0), "Invalid address"); _stableToken = IERC20(_tokenAddress); emit StableTokenSet(_tokenAddress); } /** * @dev Safe transfer NFT/Booking to buyer and transfer the price to owner wallet and buk treasury * @dev Transfer sale price and royalties * @param _tokenId, NFT/Booking ID */ function _buy(uint256 _tokenId) private { IBukProtocol.Booking memory bookingDetails = _bukProtocolContract .getBookingDetails(_tokenId); require( bookingDetails.status == IBukProtocol.BookingStatus.confirmed && bookingDetails.tradeable, "Tradeable if available" ); require( block.timestamp < (bookingDetails.checkin - (bookingDetails.tradeTimeLimit * 3600)), "Trade limit time crossed" ); require( (_stableToken.allowance(_msgSender(), address(this)) >= _listedNFT[_tokenId].price), "Check the allowance" ); address nftOwner = _listedNFT[_tokenId].owner; uint256 totalPrice = _listedNFT[_tokenId].price; require( _bukNFTContract.balanceOf(nftOwner, _tokenId) == 1, "NFT owner mismatch" ); (address royaltyAddress, uint256 royaltyAmount) = _bukNFTContract .royaltyInfo(_tokenId, _listedNFT[_tokenId].price); _stableToken.safeTransferFrom( _msgSender(), royaltyAddress, royaltyAmount ); _stableToken.safeTransferFrom( _msgSender(), nftOwner, _listedNFT[_tokenId].price - royaltyAmount ); _bukNFTContract.safeTransferFrom( address(nftOwner), _msgSender(), _tokenId, 1, "" ); uint256 listingIndex = _listedNFT[_tokenId].index; delete _listedNFT[_tokenId]; _listedNFT[_tokenId].index = listingIndex + 1; emit RoomBought(_tokenId, nftOwner, _msgSender(), totalPrice); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (access/AccessControl.sol) pragma solidity ^0.8.0; import "./IAccessControl.sol"; import "../utils/Context.sol"; import "../utils/Strings.sol"; import "../utils/introspection/ERC165.sol"; /** * @dev Contract module that allows children to implement role-based access * control mechanisms. This is a lightweight version that doesn't allow enumerating role * members except through off-chain means by accessing the contract event logs. Some * applications may benefit from on-chain enumerability, for those cases see * {AccessControlEnumerable}. * * Roles are referred to by their `bytes32` identifier. These should be exposed * in the external API and be unique. The best way to achieve this is by * using `public constant` hash digests: * * ```solidity * bytes32 public constant MY_ROLE = keccak256("MY_ROLE"); * ``` * * Roles can be used to represent a set of permissions. To restrict access to a * function call, use {hasRole}: * * ```solidity * function foo() public { * require(hasRole(MY_ROLE, msg.sender)); * ... * } * ``` * * Roles can be granted and revoked dynamically via the {grantRole} and * {revokeRole} functions. Each role has an associated admin role, and only * accounts that have a role's admin role can call {grantRole} and {revokeRole}. * * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means * that only accounts with this role will be able to grant or revoke other * roles. More complex role relationships can be created by using * {_setRoleAdmin}. * * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to * grant and revoke this role. Extra precautions should be taken to secure * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules} * to enforce additional security measures for this role. */ abstract contract AccessControl is Context, IAccessControl, ERC165 { struct RoleData { mapping(address => bool) members; bytes32 adminRole; } mapping(bytes32 => RoleData) private _roles; bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00; /** * @dev Modifier that checks that an account has a specific role. Reverts * with a standardized message including the required role. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ * * _Available since v4.1._ */ modifier onlyRole(bytes32 role) { _checkRole(role); _; } /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId); } /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) public view virtual override returns (bool) { return _roles[role].members[account]; } /** * @dev Revert with a standard message if `_msgSender()` is missing `role`. * Overriding this function changes the behavior of the {onlyRole} modifier. * * Format of the revert message is described in {_checkRole}. * * _Available since v4.6._ */ function _checkRole(bytes32 role) internal view virtual { _checkRole(role, _msgSender()); } /** * @dev Revert with a standard message if `account` is missing `role`. * * The format of the revert reason is given by the following regular expression: * * /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/ */ function _checkRole(bytes32 role, address account) internal view virtual { if (!hasRole(role, account)) { revert( string( abi.encodePacked( "AccessControl: account ", Strings.toHexString(account), " is missing role ", Strings.toHexString(uint256(role), 32) ) ) ); } } /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) public view virtual override returns (bytes32) { return _roles[role].adminRole; } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleGranted} event. */ function grantRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _grantRole(role, account); } /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. * * May emit a {RoleRevoked} event. */ function revokeRole(bytes32 role, address account) public virtual override onlyRole(getRoleAdmin(role)) { _revokeRole(role, account); } /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been revoked `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. * * May emit a {RoleRevoked} event. */ function renounceRole(bytes32 role, address account) public virtual override { require(account == _msgSender(), "AccessControl: can only renounce roles for self"); _revokeRole(role, account); } /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. Note that unlike {grantRole}, this function doesn't perform any * checks on the calling account. * * May emit a {RoleGranted} event. * * [WARNING] * ==== * This function should only be called from the constructor when setting * up the initial roles for the system. * * Using this function in any other way is effectively circumventing the admin * system imposed by {AccessControl}. * ==== * * NOTE: This function is deprecated in favor of {_grantRole}. */ function _setupRole(bytes32 role, address account) internal virtual { _grantRole(role, account); } /** * @dev Sets `adminRole` as ``role``'s admin role. * * Emits a {RoleAdminChanged} event. */ function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual { bytes32 previousAdminRole = getRoleAdmin(role); _roles[role].adminRole = adminRole; emit RoleAdminChanged(role, previousAdminRole, adminRole); } /** * @dev Grants `role` to `account`. * * Internal function without access restriction. * * May emit a {RoleGranted} event. */ function _grantRole(bytes32 role, address account) internal virtual { if (!hasRole(role, account)) { _roles[role].members[account] = true; emit RoleGranted(role, account, _msgSender()); } } /** * @dev Revokes `role` from `account`. * * Internal function without access restriction. * * May emit a {RoleRevoked} event. */ function _revokeRole(bytes32 role, address account) internal virtual { if (hasRole(role, account)) { _roles[role].members[account] = false; emit RoleRevoked(role, account, _msgSender()); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts v4.4.1 (access/IAccessControl.sol) pragma solidity ^0.8.0; /** * @dev External interface of AccessControl declared to support ERC165 detection. */ interface IAccessControl { /** * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole` * * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite * {RoleAdminChanged} not being emitted signaling this. * * _Available since v3.1._ */ event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole); /** * @dev Emitted when `account` is granted `role`. * * `sender` is the account that originated the contract call, an admin role * bearer except when using {AccessControl-_setupRole}. */ event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Emitted when `account` is revoked `role`. * * `sender` is the account that originated the contract call: * - if using `revokeRole`, it is the admin role bearer * - if using `renounceRole`, it is the role bearer (i.e. `account`) */ event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender); /** * @dev Returns `true` if `account` has been granted `role`. */ function hasRole(bytes32 role, address account) external view returns (bool); /** * @dev Returns the admin role that controls `role`. See {grantRole} and * {revokeRole}. * * To change a role's admin, use {AccessControl-_setRoleAdmin}. */ function getRoleAdmin(bytes32 role) external view returns (bytes32); /** * @dev Grants `role` to `account`. * * If `account` had not been already granted `role`, emits a {RoleGranted} * event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function grantRole(bytes32 role, address account) external; /** * @dev Revokes `role` from `account`. * * If `account` had been granted `role`, emits a {RoleRevoked} event. * * Requirements: * * - the caller must have ``role``'s admin role. */ function revokeRole(bytes32 role, address account) external; /** * @dev Revokes `role` from the calling account. * * Roles are often managed via {grantRole} and {revokeRole}: this function's * purpose is to provide a mechanism for accounts to lose their privileges * if they are compromised (such as when a trusted device is misplaced). * * If the calling account had been granted `role`, emits a {RoleRevoked} * event. * * Requirements: * * - the caller must be `account`. */ function renounceRole(bytes32 role, address account) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol) pragma solidity ^0.8.0; import "../utils/Context.sol"; /** * @dev Contract module which allows children to implement an emergency stop * mechanism that can be triggered by an authorized account. * * This module is used through inheritance. It will make available the * modifiers `whenNotPaused` and `whenPaused`, which can be applied to * the functions of your contract. Note that they will not be pausable by * simply including this module, only once the modifiers are put in place. */ abstract contract Pausable is Context { /** * @dev Emitted when the pause is triggered by `account`. */ event Paused(address account); /** * @dev Emitted when the pause is lifted by `account`. */ event Unpaused(address account); bool private _paused; /** * @dev Initializes the contract in unpaused state. */ constructor() { _paused = false; } /** * @dev Modifier to make a function callable only when the contract is not paused. * * Requirements: * * - The contract must not be paused. */ modifier whenNotPaused() { _requireNotPaused(); _; } /** * @dev Modifier to make a function callable only when the contract is paused. * * Requirements: * * - The contract must be paused. */ modifier whenPaused() { _requirePaused(); _; } /** * @dev Returns true if the contract is paused, and false otherwise. */ function paused() public view virtual returns (bool) { return _paused; } /** * @dev Throws if the contract is paused. */ function _requireNotPaused() internal view virtual { require(!paused(), "Pausable: paused"); } /** * @dev Throws if the contract is not paused. */ function _requirePaused() internal view virtual { require(paused(), "Pausable: not paused"); } /** * @dev Triggers stopped state. * * Requirements: * * - The contract must not be paused. */ function _pause() internal virtual whenNotPaused { _paused = true; emit Paused(_msgSender()); } /** * @dev Returns to normal state. * * Requirements: * * - The contract must be paused. */ function _unpause() internal virtual whenPaused { _paused = false; emit Unpaused(_msgSender()); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC1155/IERC1155.sol) pragma solidity ^0.8.0; import "../../utils/introspection/IERC165.sol"; /** * @dev Required interface of an ERC1155 compliant contract, as defined in the * https://eips.ethereum.org/EIPS/eip-1155[EIP]. * * _Available since v3.1._ */ interface IERC1155 is IERC165 { /** * @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`. */ event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value); /** * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all * transfers. */ event TransferBatch( address indexed operator, address indexed from, address indexed to, uint256[] ids, uint256[] values ); /** * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to * `approved`. */ event ApprovalForAll(address indexed account, address indexed operator, bool approved); /** * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI. * * If an {URI} event was emitted for `id`, the standard * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value * returned by {IERC1155MetadataURI-uri}. */ event URI(string value, uint256 indexed id); /** * @dev Returns the amount of tokens of token type `id` owned by `account`. * * Requirements: * * - `account` cannot be the zero address. */ function balanceOf(address account, uint256 id) external view returns (uint256); /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}. * * Requirements: * * - `accounts` and `ids` must have the same length. */ function balanceOfBatch( address[] calldata accounts, uint256[] calldata ids ) external view returns (uint256[] memory); /** * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`, * * Emits an {ApprovalForAll} event. * * Requirements: * * - `operator` cannot be the caller. */ function setApprovalForAll(address operator, bool approved) external; /** * @dev Returns true if `operator` is approved to transfer ``account``'s tokens. * * See {setApprovalForAll}. */ function isApprovedForAll(address account, address operator) external view returns (bool); /** * @dev Transfers `amount` tokens of token type `id` from `from` to `to`. * * Emits a {TransferSingle} event. * * Requirements: * * - `to` cannot be the zero address. * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}. * - `from` must have a balance of tokens of type `id` of at least `amount`. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the * acceptance magic value. */ function safeTransferFrom(address from, address to, uint256 id, uint256 amount, bytes calldata data) external; /** * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}. * * Emits a {TransferBatch} event. * * Requirements: * * - `ids` and `amounts` must have the same length. * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the * acceptance magic value. */ function safeBatchTransferFrom( address from, address to, uint256[] calldata ids, uint256[] calldata amounts, bytes calldata data ) external; }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/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 v4.9.0) (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 (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol) pragma solidity ^0.8.0; import "../IERC20.sol"; import "../extensions/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; /** * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeTransfer(IERC20 token, address to, uint256 value) internal { _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value)); } /** * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful. */ 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)); } /** * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal { uint256 oldAllowance = token.allowance(address(this), spender); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value)); } /** * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. */ 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"); _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value)); } } /** * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value, * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval * to be set to zero before setting it to a non-zero value, such as USDT. */ function forceApprove(IERC20 token, address spender, uint256 value) internal { bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value); if (!_callOptionalReturnBool(token, approvalCall)) { _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0)); _callOptionalReturn(token, approvalCall); } } /** * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`. * Revert on invalid signature. */ 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"); require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation 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). * * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead. */ function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) { // 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 cannot use {Address-functionCall} here since this should return false // and not revert is the subcall reverts. (bool success, bytes memory returndata) = address(token).call(data); return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token)); } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (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 * * Furthermore, `isContract` will also return true if the target contract within * the same transaction is already scheduled for destruction by `SELFDESTRUCT`, * which only has an effect at the end of a transaction. * ==== * * [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://consensys.net/diligence/blog/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/v0.8.0/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 functionCallWithValue(target, data, 0, "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"); (bool success, bytes memory returndata) = target.call{value: value}(data); return verifyCallResultFromTarget(target, 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) { (bool success, bytes memory returndata) = target.staticcall(data); return verifyCallResultFromTarget(target, 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) { (bool success, bytes memory returndata) = target.delegatecall(data); return verifyCallResultFromTarget(target, success, returndata, errorMessage); } /** * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract. * * _Available since v4.8._ */ function verifyCallResultFromTarget( address target, bool success, bytes memory returndata, string memory errorMessage ) internal view returns (bytes memory) { if (success) { if (returndata.length == 0) { // only check isContract if the call was successful and the return data is empty // otherwise we already know that it was a contract require(isContract(target), "Address: call to non-contract"); } return returndata; } else { _revert(returndata, errorMessage); } } /** * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the * revert reason or 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 { _revert(returndata, errorMessage); } } function _revert(bytes memory returndata, string memory errorMessage) private pure { // 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 v4.4.1 (utils/introspection/ERC165.sol) pragma solidity ^0.8.0; import "./IERC165.sol"; /** * @dev Implementation of the {IERC165} interface. * * Contracts that want to implement ERC165 should inherit from this contract and override {supportsInterface} to check * for the additional interface id that will be supported. For example: * * ```solidity * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { * return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId); * } * ``` * * Alternatively, {ERC165Storage} provides an easier to use but more expensive implementation. */ abstract contract ERC165 is IERC165 { /** * @dev See {IERC165-supportsInterface}. */ function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) { return interfaceId == type(IERC165).interfaceId; } }
// 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 (last updated v4.9.0) (utils/math/Math.sol) pragma solidity ^0.8.0; /** * @dev Standard math utilities missing in the Solidity language. */ library Math { enum Rounding { Down, // Toward negative infinity Up, // Toward infinity Zero // Toward zero } /** * @dev Returns the largest of two numbers. */ function max(uint256 a, uint256 b) internal pure returns (uint256) { return a > b ? a : b; } /** * @dev Returns the smallest of two numbers. */ function min(uint256 a, uint256 b) internal pure returns (uint256) { return a < b ? a : b; } /** * @dev Returns the average of two numbers. The result is rounded towards * zero. */ function average(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b) / 2 can overflow. return (a & b) + (a ^ b) / 2; } /** * @dev Returns the ceiling of the division of two numbers. * * This differs from standard division with `/` in that it rounds up instead * of rounding down. */ function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) { // (a + b - 1) / b can overflow on addition, so we distribute. return a == 0 ? 0 : (a - 1) / b + 1; } /** * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0 * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) * with further edits by Uniswap Labs also under MIT license. */ function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) { unchecked { // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256 // variables such that product = prod1 * 2^256 + prod0. uint256 prod0; // Least significant 256 bits of the product uint256 prod1; // Most significant 256 bits of the product assembly { let mm := mulmod(x, y, not(0)) prod0 := mul(x, y) prod1 := sub(sub(mm, prod0), lt(mm, prod0)) } // Handle non-overflow cases, 256 by 256 division. if (prod1 == 0) { // Solidity will revert if denominator == 0, unlike the div opcode on its own. // The surrounding unchecked block does not change this fact. // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic. return prod0 / denominator; } // Make sure the result is less than 2^256. Also prevents denominator == 0. require(denominator > prod1, "Math: mulDiv overflow"); /////////////////////////////////////////////// // 512 by 256 division. /////////////////////////////////////////////// // Make division exact by subtracting the remainder from [prod1 prod0]. uint256 remainder; assembly { // Compute remainder using mulmod. remainder := mulmod(x, y, denominator) // Subtract 256 bit number from 512 bit number. prod1 := sub(prod1, gt(remainder, prod0)) prod0 := sub(prod0, remainder) } // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1. // See https://cs.stackexchange.com/q/138556/92363. // Does not overflow because the denominator cannot be zero at this stage in the function. uint256 twos = denominator & (~denominator + 1); assembly { // Divide denominator by twos. denominator := div(denominator, twos) // Divide [prod1 prod0] by twos. prod0 := div(prod0, twos) // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one. twos := add(div(sub(0, twos), twos), 1) } // Shift in bits from prod1 into prod0. prod0 |= prod1 * twos; // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for // four bits. That is, denominator * inv = 1 mod 2^4. uint256 inverse = (3 * denominator) ^ 2; // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works // in modular arithmetic, doubling the correct bits in each step. inverse *= 2 - denominator * inverse; // inverse mod 2^8 inverse *= 2 - denominator * inverse; // inverse mod 2^16 inverse *= 2 - denominator * inverse; // inverse mod 2^32 inverse *= 2 - denominator * inverse; // inverse mod 2^64 inverse *= 2 - denominator * inverse; // inverse mod 2^128 inverse *= 2 - denominator * inverse; // inverse mod 2^256 // Because the division is now exact we can divide by multiplying with the modular inverse of denominator. // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1 // is no longer required. result = prod0 * inverse; return result; } } /** * @notice Calculates x * y / denominator with full precision, following the selected rounding direction. */ function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) { uint256 result = mulDiv(x, y, denominator); if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) { result += 1; } return result; } /** * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down. * * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11). */ function sqrt(uint256 a) internal pure returns (uint256) { if (a == 0) { return 0; } // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target. // // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`. // // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)` // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))` // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)` // // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit. uint256 result = 1 << (log2(a) >> 1); // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128, // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision // into the expected uint128 result. unchecked { result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; result = (result + a / result) >> 1; return min(result, a / result); } } /** * @notice Calculates sqrt(a), following the selected rounding direction. */ function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = sqrt(a); return result + (rounding == Rounding.Up && result * result < a ? 1 : 0); } } /** * @dev Return the log in base 2, rounded down, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 128; } if (value >> 64 > 0) { value >>= 64; result += 64; } if (value >> 32 > 0) { value >>= 32; result += 32; } if (value >> 16 > 0) { value >>= 16; result += 16; } if (value >> 8 > 0) { value >>= 8; result += 8; } if (value >> 4 > 0) { value >>= 4; result += 4; } if (value >> 2 > 0) { value >>= 2; result += 2; } if (value >> 1 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 2, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log2(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log2(value); return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0); } } /** * @dev Return the log in base 10, rounded down, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >= 10 ** 64) { value /= 10 ** 64; result += 64; } if (value >= 10 ** 32) { value /= 10 ** 32; result += 32; } if (value >= 10 ** 16) { value /= 10 ** 16; result += 16; } if (value >= 10 ** 8) { value /= 10 ** 8; result += 8; } if (value >= 10 ** 4) { value /= 10 ** 4; result += 4; } if (value >= 10 ** 2) { value /= 10 ** 2; result += 2; } if (value >= 10 ** 1) { result += 1; } } return result; } /** * @dev Return the log in base 10, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log10(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log10(value); return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0); } } /** * @dev Return the log in base 256, rounded down, of a positive value. * Returns 0 if given 0. * * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string. */ function log256(uint256 value) internal pure returns (uint256) { uint256 result = 0; unchecked { if (value >> 128 > 0) { value >>= 128; result += 16; } if (value >> 64 > 0) { value >>= 64; result += 8; } if (value >> 32 > 0) { value >>= 32; result += 4; } if (value >> 16 > 0) { value >>= 16; result += 2; } if (value >> 8 > 0) { result += 1; } } return result; } /** * @dev Return the log in base 256, following the selected rounding direction, of a positive value. * Returns 0 if given 0. */ function log256(uint256 value, Rounding rounding) internal pure returns (uint256) { unchecked { uint256 result = log256(value); return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.8.0) (utils/math/SignedMath.sol) pragma solidity ^0.8.0; /** * @dev Standard signed math utilities missing in the Solidity language. */ library SignedMath { /** * @dev Returns the largest of two signed numbers. */ function max(int256 a, int256 b) internal pure returns (int256) { return a > b ? a : b; } /** * @dev Returns the smallest of two signed numbers. */ function min(int256 a, int256 b) internal pure returns (int256) { return a < b ? a : b; } /** * @dev Returns the average of two signed numbers without overflow. * The result is rounded towards zero. */ function average(int256 a, int256 b) internal pure returns (int256) { // Formula from the book "Hacker's Delight" int256 x = (a & b) + ((a ^ b) >> 1); return x + (int256(uint256(x) >> 255) & (a ^ b)); } /** * @dev Returns the absolute unsigned value of a signed value. */ function abs(int256 n) internal pure returns (uint256) { unchecked { // must be unchecked in order to support `n = type(int256).min` return uint256(n >= 0 ? n : -n); } } }
// SPDX-License-Identifier: MIT // OpenZeppelin Contracts (last updated v4.9.0) (utils/Strings.sol) pragma solidity ^0.8.0; import "./math/Math.sol"; import "./math/SignedMath.sol"; /** * @dev String operations. */ library Strings { bytes16 private constant _SYMBOLS = "0123456789abcdef"; uint8 private constant _ADDRESS_LENGTH = 20; /** * @dev Converts a `uint256` to its ASCII `string` decimal representation. */ function toString(uint256 value) internal pure returns (string memory) { unchecked { uint256 length = Math.log10(value) + 1; string memory buffer = new string(length); uint256 ptr; /// @solidity memory-safe-assembly assembly { ptr := add(buffer, add(32, length)) } while (true) { ptr--; /// @solidity memory-safe-assembly assembly { mstore8(ptr, byte(mod(value, 10), _SYMBOLS)) } value /= 10; if (value == 0) break; } return buffer; } } /** * @dev Converts a `int256` to its ASCII `string` decimal representation. */ function toString(int256 value) internal pure returns (string memory) { return string(abi.encodePacked(value < 0 ? "-" : "", toString(SignedMath.abs(value)))); } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation. */ function toHexString(uint256 value) internal pure returns (string memory) { unchecked { return toHexString(value, Math.log256(value) + 1); } } /** * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length. */ function toHexString(uint256 value, uint256 length) internal pure returns (string memory) { bytes memory buffer = new bytes(2 * length + 2); buffer[0] = "0"; buffer[1] = "x"; for (uint256 i = 2 * length + 1; i > 1; --i) { buffer[i] = _SYMBOLS[value & 0xf]; value >>= 4; } require(value == 0, "Strings: hex length insufficient"); return string(buffer); } /** * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal representation. */ function toHexString(address addr) internal pure returns (string memory) { return toHexString(uint256(uint160(addr)), _ADDRESS_LENGTH); } /** * @dev Returns true if the two strings are equal. */ function equal(string memory a, string memory b) internal pure returns (bool) { return keccak256(bytes(a)) == keccak256(bytes(b)); } }
// SPDX-License-Identifier: MIT pragma solidity =0.8.19; import { IERC1155 } from "@openzeppelin/contracts/token/ERC1155/IERC1155.sol"; /** * @title Interface to define the BUK NFTs * @author BUK Technology Inc * @dev Collection of all procedures related to the BUK NFTs. */ interface IBukNFTs is IERC1155 { /// @dev Emitted when Buk Protocol Address is updated. event SetBukProtocol( address oldBukProtocolContract, address newBukProtocolContract ); /// @dev Emitted when treasury is updated. event SetBukTreasury( address oldTreasuryContract, address newTreasuryContract ); /// @dev Emitted when marketplace role is granted. event SetMarketplace(address marketplaceContract); /// @dev Event to set NFT contract role event SetNFTPOSContractRole( address oldNFTPOSContractAddr, address newNFTPOSContractAddr ); /// @dev Event to set token URI event SetURI(uint256 id, string oldUri, string newUri); /** * @dev Function to set the Buk Protocol Contract address. * @param _bukProtocolContract Address of the Buk Protocol Contract. * @notice This function can only be called by addresses with `ADMIN_ROLE` */ function setBukProtocol(address _bukProtocolContract) external; /** * @dev Function to set the treasury address. * @param _bukTreasuryContract Address of the treasury. * @notice This function can only be called by addresses with `ADMIN_ROLE` */ function setBukTreasury(address _bukTreasuryContract) external; /** * @dev Function to set the marketplace address. * @param _marketplaceContract Address of the marketplace. * @notice This function can only be called by addresses with `ADMIN_ROLE` */ function setMarketplaceRole(address _marketplaceContract) external; /** * @dev Function to set the BukPOSNFT to the contract * @param _nftPOSContract address: The address of the NFT contract * @notice This function can only be called by a contract with `ADMIN_ROLE` */ function setBukPOSNFTRole(address _nftPOSContract) external; /** * @dev Sets the URI for a specific token ID. * @param _id - The ID of the token. * @param _newuri - The new URI for the token. * @notice This function can only be called by a contract with `ADMIN_ROLE` */ function setURI(uint256 _id, string memory _newuri) external; /** * @dev Mint a new NFT with a specific token ID, account, amount, and data. * @param _id - The token ID to mint the NFT with. * @param _account - The account to mint the NFT to. * @param _amount - The amount of NFTs to mint. * @param _data - The data to store with the NFT. * @param _uri - The URI to associate with the NFT. * @return uint256 - The token ID of the newly minted NFT. * @notice This function can only be called by a contract with `BUK_PROTOCOL_ROLE` */ function mint( uint256 _id, address _account, uint256 _amount, bytes calldata _data, string calldata _uri ) external returns (uint256); /** * @dev Burn a specific NFT. * @param _account - The account to burn the NFT from. * @param _id - The token ID of the NFT to burn. * @param _amount - The amount of NFTs to burn. * @param _mintPOS - Whether or not to call the Buk POS NFTs contract to burn the NFT. * @notice This function can only be called by a contract with `BUK_PROTOCOL_ROLE` */ function burn( address _account, uint256 _id, uint256 _amount, bool _mintPOS ) external; /** * @dev Transfers ownership of an NFT token from one address to another. * @param _from - The current owner of the NFT. * @param _to - The address to transfer the ownership to. * @param _id - The ID of the NFT token. * @param _amount - Count of ERC1155 token of token ID. * @param _data - Additional data to include in the transfer. * @notice This function checks if the NFT is tranferable or not. * @notice This function can only be called by a contract with `MARKETPLACE_CONTRACT_ROLE` */ function safeTransferFrom( address _from, address _to, uint256 _id, uint256 _amount, bytes memory _data ) external; /** * @dev Transfers ownership of multiple NFT tokens from one address to another. * @param _from - The current owner of the NFTs. * @param _to - The address to transfer the ownership to. * @param _ids - The IDs of the NFT tokens. * @param _amounts - Count of ERC1155 tokens of the respective token IDs. * @param _data - Additional data to include in the transfer. * @notice This function checks if the NFTs are tranferable or not. * @notice This function can only be called by a contract with `MARKETPLACE_CONTRACT_ROLE` */ function safeBatchTransferFrom( address _from, address _to, uint256[] memory _ids, uint256[] memory _amounts, bytes memory _data ) external; /** * @dev To retrieve information about the royalties associated with a specific token. * @param _tokenId - The token ID of the NFT. * @param _salePrice - The price at which the token is being sold. * @return receiver - The address of the royalty receiver. * @return royaltyAmount - The amount of royalty to be paid. */ function royaltyInfo( uint256 _tokenId, uint256 _salePrice ) external view returns (address receiver, uint256 royaltyAmount); /** * @dev Returns the URI associated with the token ID. * @param _id - The token ID to retrieve the URI for. * @return string - The URI associated with the token ID. */ function uri(uint256 _id) external view returns (string memory); }
// SPDX-License-Identifier: MIT pragma solidity =0.8.19; import { IBukRoyalties } from "../BukRoyalties/IBukRoyalties.sol"; /** * @title Interface to define the BUK protocol * @author BUK Technology Inc * @dev Collection of all procedures related to the BUK protocol * @dev This interface is used by the other child contract to interact with the BukProtocol contract. */ interface IBukProtocol { /** * @dev Enum for booking statuses. * @var BookingStatus.nil Booking has not yet been initiated. * @var BookingStatus.booked Booking has been initiated but not yet confirmed. * @var BookingStatus.confirmed Booking has been confirmed. * @var BookingStatus.cancelled Booking has been cancelled. * @var BookingStatus.checkedin Booking has been checked-in. * @var BookingStatus.checkedout Booking has been checked-out. */ enum BookingStatus { nil, booked, confirmed, cancelled, checkedin, checkedout } /** * @dev Struct for booking details. * @param uint256 id Booking ID. * @param uint256 tokenId Token ID. * @param bytes32 propertyId Property ID. * @param BookingStatus status Booking status. * @param uint256 adult[] Number of adults. * @param uint256 child[] Number of children. * @param address owner Address of the booking owner. * @param uint256 checkin Check-in date. * @param uint256 checkout Check-out date. * @param uint256 total Total price. * @param uint256 baseRate Base rate. * @param uint256 commission Buk commission. * @param uint256 minSalePrice Min Sale Price. * @param uint256 tradeTimeLimit Buy will excecute if tradeLimitTime is not crossed (in hours) * @param bool tradeable Is the NFT Tradeable. */ struct Booking { uint256 id; uint256 tokenId; bytes32 propertyId; BookingStatus status; uint256 adult; uint256 child; address firstOwner; uint256 checkin; uint256 checkout; uint256 total; uint256 baseRate; uint256 commission; uint256 minSalePrice; uint256 tradeTimeLimit; bool tradeable; } /** * @dev Struct for booking details. * @param uint256 total Total price. * @param uint256 baseRate Base rate. * @param uint256 minSalePrice Min Sale Price. * @param uint256 adult[] Number of adults. * @param uint256 child[] Number of children. * @param bytes32 propertyId Property ID. * @param uint256 checkin Check-in date. * @param uint256 checkout Check-out date. * @param uint256 tradeTimeLimit Buy will excecute if tradeLimitTime is not crossed (in hours) * @param bool tradeable Is the NFT Tradeable. * @param address user Address of the booking owner. */ struct BookingList { uint256[] total; uint256[] baseRate; uint256[] minSalePrice; uint256[] adult; uint256[] child; bytes32 propertyId; uint256 checkIn; uint256 checkOut; uint256 tradeTimeLimit; bool tradeable; address user; } /// @dev Emitted when the admin wallet is set. event SetAdminWallet(address newAdminWallet); /// @dev Emitted when the commission is set. event SetCommission(uint256 newCommission); /// @dev Emitted when BukNFTs contract address is updated. event SetBukNFTs(address newNFTContract); /// @dev Emitted when BukPOSNFTs contract address is updated. event SetBukPOSNFTs(address newNFTPOSContract); /// @dev Emitted when BukRoyalties contract address is updated. event SetRoyaltiesContract(address newRoyaltiesContract); /// @dev Emitted when signer verifier is updated. event SetSignerVerifier(address newSignerVerifier); /// @dev Emitted when Buk treasury is updated. event SetBukTreasury(address newTreasuryContract); /// @dev Emitted when Buk Wallet is updated. event SetBukWallet(address newBukWalletContract); /// @dev Emitted when stable token is updated. event SetStableToken(address newStableToken); /** * @dev Emitted when the tradeability of a Buk NFT is toggled. * @param tokenId Token Id whose tradeability is being toggled. * @param tradeable Is the NFT tradeable. */ event ToggleTradeability(uint256 indexed tokenId, bool indexed tradeable); /// @dev Emitted when single room is booked. event BookRoom( uint256 indexed booking, bytes32 indexed propertyId, uint256 checkin, uint256 checkout, uint256 adult, uint256 child ); /// @dev Emitted when booking refund is done. event BookingRefund(uint256 total, address owner); /// @dev Emitted when room bookings are confirmed. event MintedBookingNFT(uint256[] bookings, bool status); /// @dev Emitted when room bookings are checked in. event CheckinRooms(uint256[] bookings, bool status); /// @dev Emitted when room bookings are checked out. event CheckoutRooms(uint256[] bookings, bool status); /// @dev Emitted when room bookings are cancelled. event CancelRoom( uint256[] bookingIds, uint256 indexed total, bool indexed status ); /// @dev Emitted when room bookings are cancelled. event EmergencyCancellation(uint256 indexed bookingId, bool indexed status); /** * @dev Sets the admin wallet address. * @param _adminAddr The new admin wallet address to be set. * @notice This function can only be called by admin */ function setAdmin(address _adminAddr) external; /** * @dev This function is used to set the address of the signature verifier contract. * @param _signatureVerifier The address of the signature verifier contract. * @notice This function can only be called by admin */ function setSignatureVerifier(address _signatureVerifier) external; /** * @dev Function to update the treasury address. * @param _bukTreasuryContract Address of the treasury. * @notice This function can only be called by admin */ function setBukTreasury(address _bukTreasuryContract) external; /** * @dev Function to update the Buk Wallet address to collect commission. * @param _bukWalletContract Address of the Buk Wallet. * @notice This function can only be called by admin */ function setBukWallet(address _bukWalletContract) external; /** * @dev Function to update the stable token address. * @param _stableToken Address of the stable token contract. * @notice This function can only be called by admin */ function setStableToken(address _stableToken) external; /** * @dev Function to update the BukNFTs contract address. * @param _nftContractAddr Address of the BukNFTs contract. * @notice This function can only be called by admin */ function setBukNFTs(address _nftContractAddr) external; /** * @dev Function to update the BukPOSNFTs contract address. * @param _nftPOSContractAddr Address of the BukPOSNFTs contract. * @notice This function can only be called by admin */ function setBukPOSNFTs(address _nftPOSContractAddr) external; /** * @dev Sets the Buk royalties contract address. * Can only be called by accounts with the ADMIN_ROLE. * @param _royaltiesContract The new royaltiesContract address to set. * @notice This function updates the royaltiesContract address and emits an event. * @dev If {_royaltiesContract} is the zero address, the function will revert. * @dev Emits a {SetRoyaltiesContract} event with the previous royaltiesContract address and the new address. */ function setRoyaltiesContract(address _royaltiesContract) external; /** * @dev Function to set the Buk commission percentage. * @param _commission Commission percentage. * @notice This function can only be called by admin */ function setCommission(uint256 _commission) external; /** * @dev Function to toggle the tradeability of an asset. * @param _tokenId Token Id whose tradeability is being toggled. * @notice This function can only be called by admin */ function toggleTradeability(uint256 _tokenId) external; /** * @dev Function to pause the contract. * @notice This function can only be called by admin */ function pause() external; /** * @dev Function to unpause the contract. * @notice This function can only be called by admin */ function unpause() external; /** * @dev Function to book rooms. * @param _total Total amount to be paid. * @param _baseRate Base rate of the room. * @param _minSalePrice Minimum sale price for the booking. * @param _adult Number of adults. * @param _child Number of children. * @param _propertyId Property ID. * @param _checkin Checkin date. * @param _checkout Checkout date. * @param _tradeTimeLimit Trade Limit of NFT based on Checkin time. * @param _tradeable Is the booking NFT tradeable. * @return ids IDs of the bookings. */ function bookRooms( uint256[] memory _total, uint256[] memory _baseRate, uint256[] memory _minSalePrice, uint256[] memory _adult, uint256[] memory _child, bytes32 _propertyId, uint256 _checkin, uint256 _checkout, uint256 _tradeTimeLimit, bool _tradeable ) external returns (bool); /** * @dev Function to book rooms. * @param _total Total amount to be paid. * @param _baseRate Base rate of the room. * @param _minSalePrice Minimum sale price for the booking. * @param _adult Number of adults. * @param _child Number of children. * @param _propertyId Property ID. * @param _checkin Checkin date. * @param _checkout Checkout date. * @param _tradeTimeLimit Trade Limit of NFT based on Checkin time. * @param _tradeable Is the booking NFT tradeable. * @param _user Address of user which we are booking. * @return ids IDs of the bookings. * @notice This function can only be called by admin * @notice This function is used to book rooms on behalf of the user. */ function bookRoomsOwner( uint256[] memory _total, uint256[] memory _baseRate, uint256[] memory _minSalePrice, uint256[] memory _adult, uint256[] memory _child, bytes32 _propertyId, uint256 _checkin, uint256 _checkout, uint256 _tradeTimeLimit, bool _tradeable, address _user ) external returns (bool); /** * @dev Allows the admin to refund a booking by canceling it and transferring the amount to the owner. * @param _ids An array of booking IDs that need to be refunded. * @param _owner The address of the owner of the bookings. * @notice This function is usually executed when the booking is unsuccessful from the hotel's end. * @notice This function can only be called by admin */ function bookingRefund(uint256[] memory _ids, address _owner) external; /** * @dev Function to mint new BukNFT tokens based on the provided booking IDs and URIs. * @param _ids An array of booking IDs representing the unique identifier for each BukNFT token. * @param _uri An array of URIs corresponding to each booking ID, which will be associated with the Buk NFTs. * @param _user Address of user which we are minting. * @notice Only the owner of the booking can book the NFTs and confirm the rooms. * @notice The number of bookings and URIs should be same. * @notice The booking status should be booked to confirm it. * @notice The NFTs are minted to the owner of the booking. * @notice This function can only be called by admin */ function mintBukNFTOwner( uint256[] memory _ids, string[] memory _uri, address _user ) external; /** * @dev Function to checkin the rooms. * @param _ids An array of booking IDs representing the unique identifier for each BukNFT token. * @notice The booking status should be confirmed to checkin it. * @notice Once checkedin the NFT becomes non-tradeable. * @notice This function can only be called by admin or the owner of the booking NFT */ function checkin(uint256[] memory _ids) external; /** * @dev Function to checkout the rooms. * @param _ids IDs of the bookings. * @param _recipients Owner address of tokens of the bookings. * @notice Only the admin can checkout the rooms. * @notice The booking status should be checkedin to checkout it. * @notice The Active Booking NFTs are burnt from the owner's account. * @notice The Utility NFTs are minted to the owner of the booking. * @notice This function can only be called by admin * @notice POSR NFT will be minted to recipients address. */ function checkout( uint256[] memory _ids, address[] memory _recipients ) external; /** * @dev Function to cancel the room bookings. * @param _ids Array of booking. * @param _penalties Array of penalty amount to be refunded. * @param _refunds Array of refund amount to be refunded. * @param _charges Array of charges amount to be deducted. * @param _bookingOwner Owner of the booking. * @notice Only the admin can cancel the rooms. * @notice The booking status should be confirmed to cancel it. * @notice The Active Booking NFTs are burnt from the owner's account. * @notice Buk commission is non-refundable. * @notice This function can only be called by admin */ function cancelRooms( uint256[] memory _ids, uint256[] memory _penalties, uint256[] memory _refunds, uint256[] memory _charges, address _bookingOwner, bytes memory _signature ) external; /** * @dev Function to perform an emergency cancellation of a booking. * @param _id The ID of the booking to be cancelled. * @param _refund The amount to be refunded to the booking owner. * @param _charges The charges associated with the cancellation(if any). * @param _bookingOwner The address of the booking owner. * @notice This function can only be called by admin * @notice Total refund amount and charges should be less than or equal to the total amount (Total = total booking amount + buk commission). */ function emergencyCancellation( uint256 _id, uint256 _refund, uint256 _charges, address _bookingOwner ) external; /** * Function to get wallet addresses * @return nftContract The address of the nft contract * @return nftPOSContract The address of the nftPOS contract * @return royaltiesContract The address of the royalties contract * @return signatureVerifier The address of the signature verifier contract * @return bukTreasury The address of the bukTreasury contract * @return stableToken The address of the stable token contract * @return bukWallet The address of the bukWallet contract * @return admin The address of the stable token contract */ function getWallets() external view returns ( address nftContract, address nftPOSContract, address royaltiesContract, address signatureVerifier, address bukTreasury, address stableToken, address bukWallet, address admin ); /** * @dev To get the booking details * @param _tokenId ID of the booking. */ function getBookingDetails( uint256 _tokenId ) external view returns (Booking memory); /** * @dev Function to retrieve royalty information. * @param _tokenId ID of the token * @notice Token ID and Booking ID are same. */ function getRoyaltyInfo( uint256 _tokenId ) external view returns (IBukRoyalties.Royalty[] memory); }
// SPDX-License-Identifier: MIT pragma solidity =0.8.19; /** * @title Interface to define the BUK royalties. * @author BUK Technology Inc * @dev Collection of all functions related to the BUK Royalties. */ interface IBukRoyalties { /** * @dev Struct named Royalty to store royalty information. * @param address receiver The address of the receiver who will receive the royalty * @param uint96 royaltyFraction The fraction of the royalty to be paid, expressed as an unsigned 96-bit integer */ struct Royalty { address receiver; uint96 royaltyFraction; } /** * @dev Emitted when new buk protocol address has been updated * @param oldBukProtocol, old buk protocol address * @param newBukProtocol, new buk protocol address */ event SetBukProtocol( address oldBukProtocol, address newBukProtocol ); /** * @dev Emitted when new Buk royalty has been updated * @param oldRoyalty, old buk royalty * @param newRoyalty, new buk royalty * @notice This event is used when Buk royalty is updated */ event SetBukRoyalty(uint96 oldRoyalty, uint96 newRoyalty); /** * @dev Emitted when Hotel royalty has been updated * @param oldRoyalty, old buk royalty * @param newRoyalty, new buk royalty * @notice This event is used when Hotel royalty is updated */ event SetHotelRoyalty(uint96 oldRoyalty, uint96 newRoyalty); /** * @dev Emitted when First Owner royalty has been updated * @param oldRoyalty, old buk royalty * @param newRoyalty, new buk royalty * @notice This event is used when First Owner royalty is updated */ event SetFirstOwnerRoyalty(uint96 oldRoyalty, uint96 newRoyalty); /** * @dev Emitted when other royalties are updated * @param oldRoyalty, array of old royalties * @param newRoyalty, array od new royalties */ event SetOtherRoyalties(uint96[] oldRoyalty, uint96[] newRoyalty); /** * @dev Sets the Buk Protocol address. * Can only be called by accounts with the ADMIN_ROLE. * @param _bukProtocolContract The new Buk Protocol address to set. * @dev If {_bukProtocolContract} is the zero address, the function will revert. * @dev Emits a {SetBukProtocol} event with the previous Buk Protocol address and the new address. * @notice This function updates the Buk Protocol address and emits an event. * @notice This function can only be called by `ADMIN_ROLE` */ function setBukProtocolContract(address _bukProtocolContract) external; /** * @dev Function to define the royalty Fraction for Buk. * @param _recipient Recipient address. * @param _royaltyFraction Royalty Fraction. * @notice This function can only be called by `ADMIN_ROLE` */ function setBukRoyaltyInfo( address _recipient, uint96 _royaltyFraction ) external; /** * @dev Function to define the royalty Fraction for Hotel. * @param _recipient Recipient address. * @param _royaltyFraction Royalty Fraction. * @notice This function can only be called by `ADMIN_ROLE` */ function setHotelRoyaltyInfo( address _recipient, uint96 _royaltyFraction ) external; /** * @dev Function to define the royalty Fraction for the First Owners. * @param _royaltyFraction Royalty Fraction. * @notice This function can only be called by `ADMIN_ROLE` */ function setFirstOwnerRoyaltyInfo(uint96 _royaltyFraction) external; /** * @dev Function to define the royalties. * @param _recipients Array of recipients of royalties * @param _royaltyFractions Array of percentages for each recipients in the _recipients[] order. * @notice This function can only be called by `ADMIN_ROLE` */ function setOtherRoyaltyInfo( address[] memory _recipients, uint96[] memory _royaltyFractions ) external; /** * @dev Function to retrieve royalty information. * @param _tokenId ID of the token * @notice Token ID and Booking ID are same. */ function getRoyaltyInfo( uint256 _tokenId ) external view returns (Royalty[] memory); }
// SPDX-License-Identifier: MIT pragma solidity =0.8.19; /** * @title Interface to define the BUK marketplace * @author BUK Technology Inc * @dev Collection of all procedures related to the marketplace */ interface IMarketplace { /** * @title Struct to define the booking/room listing details * @param price, price of room/booking * @param owner, Owner of room/booking * @param status, status of listing */ struct ListingDetails { uint256 price; address owner; uint256 index; ListingStatus status; } /** * @dev Enum for listing statuses. * @var ListingStatus.inactive Listing has been inactive * @var ListingStatus.active Listing has been active. */ enum ListingStatus { inactive, active } /** * @dev Emitted when room/booking NFT bought * @param tokenId, TokenId of the bought booking * @param previousOwner, Address of the previous owner * @param newOwner, Address of the new owner * @param price, Price of the bought booking */ event RoomBought( uint256 indexed tokenId, address previousOwner, address newOwner, uint256 price ); /** * @dev Emitted when a room/booking NFT is listed for sale * @param owner, Address of the initial owner * @param tokenId, tokenId is the unique identifier of booking NFT * @param price, Sale price of room/booking */ event ListingCreated(address owner, uint256 indexed tokenId, uint256 price); /** * @dev Emitted when a booking/room NFT is relisted * @param tokenId, unique ID of the booking NFT * @param oldPrice, old price of the room/booking * @param newPrice, new price of the room/booking */ event Relisted(uint256 indexed tokenId, uint256 oldPrice, uint256 newPrice); /** * @dev Emitted when a booking/room is deleted from list * @param tokenId, unique ID of the booking NFT */ event DeletedListing(uint256 indexed tokenId); /** * @dev Emitted when new BukProtocol address has been updated * @param newAddress, Address of the new bukProtocol */ event BukProtocolSet(address newAddress); /** * @dev Emitted when new BukNFT address has been updated * @param newAddress, Address of the new bukNFT */ event BukNFTSet(address newAddress); /** * @dev Emitted when new Stable token address has been updated * @param newAddress, Address of the new address */ event StableTokenSet(address newAddress); /** * @dev Function to pause the contract. * @notice This function can only be called by admin */ function pause() external; /** * @dev Function to unpause the contract. * @notice This function can only be called by admin */ function unpause() external; /** * @dev Function will create a listing of Booking/Room NFT * @dev Seller has to approve marketplace to execute transfer before listing * @notice Only NFT owner can list * @param _tokenId room/booking NFT id * @param _price Sale price of room/booking * @notice Will validate with room has not been checkedin and tradable shuld be true * @notice Price shouldn't be lessthan minimum sale price * @notice Trade time limit hours not crossed. Ex:Only able to trade before 12 hours of checkin */ function createListing(uint256 _tokenId, uint256 _price) external; /** * @dev Function will delete listing * @dev NFT owner or BukProtocol can delete lisitng * @notice When user checkin, Buk protocol can call this function * @param _tokenId Unique ID */ function deleteListing(uint256 _tokenId) external; /** * @dev Function will update price and status for listed NFT * @dev Only NFT owner can update * @param _tokenId Unique ID * @param _newPrice New price for NFT/Room */ function relist(uint256 _tokenId, uint256 _newPrice) external; /** * @dev Function will enable user to buy this room/booking NFT * @param _tokenId room/booking NFT id * @dev Gets royalty details from BUK NFT and transfer the royalties * @dev NFT Owner should give approve marketplace to transfer booking * @dev Buyer should have approve marketplace to transfer its ERC20 tokens to pay price and royalties * @dev Only Marketplace contract can excecute transfer * @notice Buy will excecute only if, tradeLimitTime is not crossed and in active status and not checkedin bookings * @notice Will delete a entry once bought */ function buyRoom(uint256 _tokenId) external; /** * @dev Function will enable user to buy multiple room/booking NFT * @param _tokenId Array of room/booking NFT id's * @dev Gets royalty details from BUK NFT and transfer the royalties * @dev NFT Owner should give approve marketplace to transfer booking * @dev Buyer should have approve marketplace to transfer its ERC20 tokens to pay price and royalties * @dev Only Marketplace contract can excecute transfer * @notice Buy will excecute only if, tradeLimitTime is not crossed and in active status and not checkedin bookings * @notice Will delete a entry once bought */ function buyRoomBatch(uint256[] calldata _tokenId) external; /** * @dev Function will set new BUK protocol address * @param _bukProtocol address of new BUK protocol */ function setBukProtocol(address _bukProtocol) external; /** * @dev Function will set new BUK NFT address * @param _bukNFT address of new BUK protocol */ function setBukNFT(address _bukNFT) external; /** * @dev Function will set new stable token address * @param _tokenAddress address of new token address * @notice This token is used for transaction to make payments */ function setStableToken(address _tokenAddress) external; /** * @dev Gets stable token address * @return address, Address of the stable token contract */ function getStableToken() external view returns (address); /** * @dev Gets current BUK protocol address * @return address, Address of the BUK protocol contract */ function getBukProtocol() external view returns (address); /** * @dev Gets current BUK NFT address * @return address, Address of the BUK NFT contract */ function getBukNFT() external view returns (address); /** * @dev Function will provide Lisiting details of booking * @param _tokenId room/booking NFT id */ function getListingDetails( uint256 _tokenId ) external view returns (ListingDetails calldata); /** * @dev Function check is NFT/Booking listed * @param _tokenId TokenID of booking */ function isBookingListed(uint256 _tokenId) external view returns (bool); }
{ "optimizer": { "enabled": true, "runs": 10000 }, "outputSelection": { "*": { "*": [ "evm.bytecode", "evm.deployedBytecode", "devdoc", "userdoc", "metadata", "abi" ] } }, "libraries": {} }
[{"inputs":[{"internalType":"address","name":"_bukProtocolAddress","type":"address"},{"internalType":"address","name":"_bukNFTAddress","type":"address"},{"internalType":"address","name":"_tokenAddress","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newAddress","type":"address"}],"name":"BukNFTSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newAddress","type":"address"}],"name":"BukProtocolSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"}],"name":"DeletedListing","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"owner","type":"address"},{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"price","type":"uint256"}],"name":"ListingCreated","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Paused","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"oldPrice","type":"uint256"},{"indexed":false,"internalType":"uint256","name":"newPrice","type":"uint256"}],"name":"Relisted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"previousAdminRole","type":"bytes32"},{"indexed":true,"internalType":"bytes32","name":"newAdminRole","type":"bytes32"}],"name":"RoleAdminChanged","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleGranted","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"bytes32","name":"role","type":"bytes32"},{"indexed":true,"internalType":"address","name":"account","type":"address"},{"indexed":true,"internalType":"address","name":"sender","type":"address"}],"name":"RoleRevoked","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"uint256","name":"tokenId","type":"uint256"},{"indexed":false,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":false,"internalType":"address","name":"newOwner","type":"address"},{"indexed":false,"internalType":"uint256","name":"price","type":"uint256"}],"name":"RoomBought","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"newAddress","type":"address"}],"name":"StableTokenSet","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"}],"name":"Unpaused","type":"event"},{"inputs":[],"name":"ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"BUK_PROTOCOL_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"DEFAULT_ADMIN_ROLE","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"buyRoom","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256[]","name":"_tokenIds","type":"uint256[]"}],"name":"buyRoomBatch","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_price","type":"uint256"}],"name":"createListing","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"deleteListing","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"getBukNFT","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getBukProtocol","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"getListingDetails","outputs":[{"components":[{"internalType":"uint256","name":"price","type":"uint256"},{"internalType":"address","name":"owner","type":"address"},{"internalType":"uint256","name":"index","type":"uint256"},{"internalType":"enum IMarketplace.ListingStatus","name":"status","type":"uint8"}],"internalType":"struct IMarketplace.ListingDetails","name":"","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"}],"name":"getRoleAdmin","outputs":[{"internalType":"bytes32","name":"","type":"bytes32"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"getStableToken","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"grantRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"hasRole","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"}],"name":"isBookingListed","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_tokenId","type":"uint256"},{"internalType":"uint256","name":"_newPrice","type":"uint256"}],"name":"relist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"renounceRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"role","type":"bytes32"},{"internalType":"address","name":"account","type":"address"}],"name":"revokeRole","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_bukNFT","type":"address"}],"name":"setBukNFT","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_bukProtocol","type":"address"}],"name":"setBukProtocol","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenAddress","type":"address"}],"name":"setStableToken","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes4","name":"interfaceId","type":"bytes4"}],"name":"supportsInterface","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"}]
Contract Creation Code
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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)
00000000000000000000000032a20c3f1386cdac2103056e26b5e9b4b8501e5f00000000000000000000000069af5dc57172f33aef58e10944f33f98e8203d2c00000000000000000000000090a38d725cdc8b8622795bc0776ab72396868c2f
-----Decoded View---------------
Arg [0] : _bukProtocolAddress (address): 0x32a20C3f1386CDAC2103056E26b5e9B4b8501E5F
Arg [1] : _bukNFTAddress (address): 0x69aF5dC57172F33AEF58E10944F33F98E8203d2c
Arg [2] : _tokenAddress (address): 0x90A38d725Cdc8B8622795bc0776aB72396868C2f
-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 00000000000000000000000032a20c3f1386cdac2103056e26b5e9b4b8501e5f
Arg [1] : 00000000000000000000000069af5dc57172f33aef58e10944f33f98e8203d2c
Arg [2] : 00000000000000000000000090a38d725cdc8b8622795bc0776ab72396868c2f
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A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.