Contract Name:
NFTDropCollection
Contract Source Code:
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/ERC721Upgradeable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/ContextUpgradeable.sol";
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "@openzeppelin/contracts/utils/Strings.sol";
import "./interfaces/INFTDropCollectionInitializer.sol";
import "./interfaces/INFTDropCollectionMint.sol";
import "./mixins/collections/CollectionRoyalties.sol";
import "./mixins/collections/SequentialMintCollection.sol";
import "./mixins/roles/AdminRole.sol";
import "./mixins/roles/MinterRole.sol";
import "./mixins/shared/Constants.sol";
import "./mixins/shared/ContractFactory.sol";
/**
* @title A contract to batch mint and reveal a collection of NFTs.
* @notice A 10% royalty to the creator is included which may be split
* with collaborators.
*/
contract NFTDropCollection is
INFTDropCollectionInitializer,
INFTDropCollectionMint,
IGetRoyalties,
IGetFees,
IRoyaltyInfo,
ITokenCreator,
ContractFactory,
Initializable,
ContextUpgradeable,
ERC165Upgradeable,
AccessControlUpgradeable,
AdminRole,
MinterRole,
ERC721Upgradeable,
ERC721BurnableUpgradeable,
SequentialMintCollection,
CollectionRoyalties
{
using Strings for uint256;
/****** Slot 0 (after inheritance) ******/
/**
* @notice The address to pay the proceeds/royalties for the collection.
* @dev If this is set to address(0) then the proceeds go to the creator.
*/
address payable private paymentAddress;
// 96 bits free space
/****** Slot 1 ******/
/**
* @notice Base URI for the Collection.
* @dev TokenId is concatenated with the baseURI to obtain an NFT in the collection.
* e.g. The address for `tokenId`: '1' with `baseURI`: "ipfs://foo/" is "ipfs://foo/1".
*/
string public baseURI;
/****** Slot 2 ******/
/**
* @notice Hash of the `baseURI` for the collection.
* @dev The value is set bytes(0) if the collection is revealed or public by default.
*/
bytes32 public postRevealBaseURIHash;
/****** End of storage ******/
/**
* @notice Emitted when the collection is revealed.
* @param baseURI The base URI for the collection.
* @param postRevealBaseURIHash The hash of the revealed baseURI for the collection.
* @dev If postRevealBaseURIHash is empty, signals that the collection has been revealed.
* When both baseURI and postRevealBaseURIHash are set,
* baseURI is the pre-reveal content and signals the collection has not been revealed yet.
*/
event URIUpdated(string baseURI, bytes32 postRevealBaseURIHash);
modifier validBaseURI(string calldata _baseURI) {
require(bytes(_baseURI).length > 0, "NFTDropCollection: `_baseURI` must be set");
_;
}
modifier onlyWhileUnrevealed() {
require(postRevealBaseURIHash != bytes32(0), "NFTDropCollection: Already revealed");
_;
}
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create collection contracts.
*/
constructor(address _contractFactory)
ContractFactory(_contractFactory) // solhint-disable-next-line no-empty-blocks
{}
/**
* @notice Initializer for the collection, called by the factory on creation.
* @param _creator The creator of this collection contract.
* @param _name The name of this collection.
* @param _symbol The symbol for this collection.
* @param _baseURI The base URI for the collection.
* @param _postRevealBaseURIHash The hash of the revealed baseURI for the collection.
* @param _maxTokenId The max token id for this collection.
* @param _additionalMinter An additional address to grant MINTER_ROLE.
* @param _paymentAddress The address to send proceeds of this collection.
* @dev Notes:
* a) `_creator` is granted `DEFAULT_ADMIN_ROLE` by default.
* b) Set `_additionalMinter` to address(0) if not needed.
* c) For a collection without a reveal, set `_baseURI`
* to the actual baseURI (e.g. "ipfs://foo/") and do not set `_postRevealBaseURIHash`.
* d) A collection can have up to 4,294,967,295 (2^32-1) tokens.
*/
function initialize(
address payable _creator,
string calldata _name,
string calldata _symbol,
string calldata _baseURI,
bytes32 _postRevealBaseURIHash,
uint32 _maxTokenId,
address _additionalMinter,
address payable _paymentAddress
) external initializer onlyContractFactory validBaseURI(_baseURI) {
require(bytes(_symbol).length > 0, "NFTDropCollection: `_symbol` must be set");
require(_maxTokenId > 0, "NFTDropCollection: `_maxTokenId` must be set");
// Initialize the NFT
__ERC721_init(_name, _symbol);
_initializeSequentialMintCollection(_creator, _maxTokenId);
// Initialize royalties
if (_paymentAddress != address(0)) {
// If no payment address was defined, use the creator's address.
paymentAddress = _paymentAddress;
}
// Initialize URI
baseURI = _baseURI;
postRevealBaseURIHash = _postRevealBaseURIHash;
// Initialize access control
AdminRole._initializeAdminRole(_creator);
if (_additionalMinter != address(0)) {
MinterRole._initializeMinterRole(_additionalMinter);
}
}
/**
* @notice Allows the collection owner to burn a specific token.
* The token must be owned by the collection admin.
* @dev The function here asserts onlyAdmin while the super confirms ownership.
*/
function burn(uint256 tokenId) public override onlyAdmin {
super.burn(tokenId);
}
/**
* @notice Allows minting `count` number of NFTs for the `to` address.
* @param count The count of NFTs to mint.
* @param to The address to mint the NFTs for.
*/
function mintCountTo(uint16 count, address to) external onlyMinterOrAdmin returns (uint256 firstTokenId) {
require(count != 0, "NFTDropCollection: `count` must be greater than 0");
unchecked {
// If +1 overflows then +count would also overflow, unless count==0 in which case the loop would exceed gas limits
firstTokenId = latestTokenId + 1;
}
latestTokenId = latestTokenId + count;
require(latestTokenId <= maxTokenId, "NFTDropCollection: Exceeds max tokenId");
for (uint256 i = firstTokenId; i <= latestTokenId; ) {
_mint(to, i);
unchecked {
++i;
}
}
}
/**
* @notice Allows the collection owner to reveal the collection.
* @dev Notes:
* a) The collection can only be revealed once.
* b) use updatePreRevealContent() to update pre-reveal content not reveal()
*/
function reveal(string calldata _baseURI) external onlyAdmin validBaseURI(_baseURI) onlyWhileUnrevealed {
// `postRevealBaseURIHash` == 0 indicates that the collection has been revealed.
delete postRevealBaseURIHash;
// Set the new base URI.
baseURI = _baseURI;
emit URIUpdated(_baseURI, "");
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
*/
function selfDestruct() external onlyAdmin {
_selfDestruct();
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function updateMaxTokenId(uint32 _maxTokenId) external onlyAdmin {
_updateMaxTokenId(_maxTokenId);
}
/**
* @notice Allows the collection owner to update the pre-reveal content.
* @dev Notes:
* a) Use reveal() to reveal collection not this fn.
* b) This fn should only be used if:
* i) the unrevealed baseURI has changed and the postRevealBaseURIHash needs to
* be updated (set `_postRevealBaseURIHash`)
* ii) pre-reveal URI needs to be updated (set `_baseURI`)
*/
function updatePreRevealContent(string calldata _baseURI, bytes32 _postRevealBaseURIHash)
external
validBaseURI(_baseURI)
onlyWhileUnrevealed
onlyAdmin
{
require(_postRevealBaseURIHash != bytes32(0), "NFTDropCollection: use `reveal` instead");
postRevealBaseURIHash = _postRevealBaseURIHash;
baseURI = _baseURI;
emit URIUpdated(baseURI, postRevealBaseURIHash);
}
function _burn(uint256 tokenId) internal override(ERC721Upgradeable, SequentialMintCollection) {
super._burn(tokenId);
}
/**
* @notice The address to pay the proceeds/royalties for the collection.
*/
function getTokenCreatorPaymentAddress(
uint256 /* tokenId */
) public view override returns (address payable creatorPaymentAddress) {
creatorPaymentAddress = paymentAddress;
if (creatorPaymentAddress == address(0)) {
creatorPaymentAddress = owner;
}
}
/**
* @notice Returns whether the collection has been revealed.
*/
function isRevealed() external view returns (bool revealed) {
revealed = postRevealBaseURIHash == bytes32(0);
}
/**
* @notice Returns the number of tokens which can still be minted.
*/
function numberOfTokensAvailableToMint() external view returns (uint256 count) {
// Mint ensures that latestTokenId is always <= maxTokenId
unchecked {
count = maxTokenId - latestTokenId;
}
}
function supportsInterface(bytes4 interfaceId)
public
view
override(ERC165Upgradeable, AccessControlUpgradeable, ERC721Upgradeable, CollectionRoyalties)
returns (bool interfaceSupported)
{
if (interfaceId == type(INFTDropCollectionMint).interfaceId) {
interfaceSupported = true;
} else {
interfaceSupported = super.supportsInterface(interfaceId);
}
}
/**
* @inheritdoc ERC721Upgradeable
*/
function tokenURI(uint256 tokenId) public view override returns (string memory uri) {
_requireMinted(tokenId);
return string.concat(baseURI, tokenId.toString(), ".json");
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/AccessControl.sol)
pragma solidity ^0.8.0;
import "./IAccessControlUpgradeable.sol";
import "../utils/ContextUpgradeable.sol";
import "../utils/StringsUpgradeable.sol";
import "../utils/introspection/ERC165Upgradeable.sol";
import "../proxy/utils/Initializable.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:
*
* ```
* 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}:
*
* ```
* 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.
*/
abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControlUpgradeable, ERC165Upgradeable {
function __AccessControl_init() internal onlyInitializing {
}
function __AccessControl_init_unchained() internal onlyInitializing {
}
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})$/
*
* _Available since v4.1._
*/
modifier onlyRole(bytes32 role) {
_checkRole(role);
_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IAccessControlUpgradeable).interfaceId || super.supportsInterface(interfaceId);
}
/**
* @dev Returns `true` if `account` has been granted `role`.
*/
function hasRole(bytes32 role, address account) public view virtual override returns (bool) {
return _roles[role].members[account];
}
/**
* @dev Revert with a standard message if `_msgSender()` is missing `role`.
* Overriding this function changes the behavior of the {onlyRole} modifier.
*
* Format of the revert message is described in {_checkRole}.
*
* _Available since v4.6._
*/
function _checkRole(bytes32 role) internal view virtual {
_checkRole(role, _msgSender());
}
/**
* @dev Revert with a standard message if `account` is missing `role`.
*
* The format of the revert reason is given by the following regular expression:
*
* /^AccessControl: account (0x[0-9a-f]{40}) is missing role (0x[0-9a-f]{64})$/
*/
function _checkRole(bytes32 role, address account) internal view virtual {
if (!hasRole(role, account)) {
revert(
string(
abi.encodePacked(
"AccessControl: account ",
StringsUpgradeable.toHexString(uint160(account), 20),
" is missing role ",
StringsUpgradeable.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());
}
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[49] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (proxy/utils/Initializable.sol)
pragma solidity ^0.8.2;
import "../../utils/AddressUpgradeable.sol";
/**
* @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
* behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
* external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
* function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
*
* The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
* reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
* case an upgrade adds a module that needs to be initialized.
*
* For example:
*
* [.hljs-theme-light.nopadding]
* ```
* contract MyToken is ERC20Upgradeable {
* function initialize() initializer public {
* __ERC20_init("MyToken", "MTK");
* }
* }
* contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
* function initializeV2() reinitializer(2) public {
* __ERC20Permit_init("MyToken");
* }
* }
* ```
*
* TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
* possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
*
* CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
* that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
*
* [CAUTION]
* ====
* Avoid leaving a contract uninitialized.
*
* An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
* contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
* the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
*
* [.hljs-theme-light.nopadding]
* ```
* /// @custom:oz-upgrades-unsafe-allow constructor
* constructor() {
* _disableInitializers();
* }
* ```
* ====
*/
abstract contract Initializable {
/**
* @dev Indicates that the contract has been initialized.
* @custom:oz-retyped-from bool
*/
uint8 private _initialized;
/**
* @dev Indicates that the contract is in the process of being initialized.
*/
bool private _initializing;
/**
* @dev Triggered when the contract has been initialized or reinitialized.
*/
event Initialized(uint8 version);
/**
* @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
* `onlyInitializing` functions can be used to initialize parent contracts. Equivalent to `reinitializer(1)`.
*/
modifier initializer() {
bool isTopLevelCall = !_initializing;
require(
(isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
"Initializable: contract is already initialized"
);
_initialized = 1;
if (isTopLevelCall) {
_initializing = true;
}
_;
if (isTopLevelCall) {
_initializing = false;
emit Initialized(1);
}
}
/**
* @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
* contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
* used to initialize parent contracts.
*
* `initializer` is equivalent to `reinitializer(1)`, so a reinitializer may be used after the original
* initialization step. This is essential to configure modules that are added through upgrades and that require
* initialization.
*
* Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
* a contract, executing them in the right order is up to the developer or operator.
*/
modifier reinitializer(uint8 version) {
require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
_initialized = version;
_initializing = true;
_;
_initializing = false;
emit Initialized(version);
}
/**
* @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
* {initializer} and {reinitializer} modifiers, directly or indirectly.
*/
modifier onlyInitializing() {
require(_initializing, "Initializable: contract is not initializing");
_;
}
/**
* @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
* Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
* to any version. It is recommended to use this to lock implementation contracts that are designed to be called
* through proxies.
*/
function _disableInitializers() internal virtual {
require(!_initializing, "Initializable: contract is initializing");
if (_initialized < type(uint8).max) {
_initialized = type(uint8).max;
emit Initialized(type(uint8).max);
}
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/ERC721.sol)
pragma solidity ^0.8.0;
import "./IERC721Upgradeable.sol";
import "./IERC721ReceiverUpgradeable.sol";
import "./extensions/IERC721MetadataUpgradeable.sol";
import "../../utils/AddressUpgradeable.sol";
import "../../utils/ContextUpgradeable.sol";
import "../../utils/StringsUpgradeable.sol";
import "../../utils/introspection/ERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.sol";
/**
* @dev Implementation of https://eips.ethereum.org/EIPS/eip-721[ERC721] Non-Fungible Token Standard, including
* the Metadata extension, but not including the Enumerable extension, which is available separately as
* {ERC721Enumerable}.
*/
contract ERC721Upgradeable is Initializable, ContextUpgradeable, ERC165Upgradeable, IERC721Upgradeable, IERC721MetadataUpgradeable {
using AddressUpgradeable for address;
using StringsUpgradeable for uint256;
// Token name
string private _name;
// Token symbol
string private _symbol;
// Mapping from token ID to owner address
mapping(uint256 => address) private _owners;
// Mapping owner address to token count
mapping(address => uint256) private _balances;
// Mapping from token ID to approved address
mapping(uint256 => address) private _tokenApprovals;
// Mapping from owner to operator approvals
mapping(address => mapping(address => bool)) private _operatorApprovals;
/**
* @dev Initializes the contract by setting a `name` and a `symbol` to the token collection.
*/
function __ERC721_init(string memory name_, string memory symbol_) internal onlyInitializing {
__ERC721_init_unchained(name_, symbol_);
}
function __ERC721_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
_name = name_;
_symbol = symbol_;
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165Upgradeable, IERC165Upgradeable) returns (bool) {
return
interfaceId == type(IERC721Upgradeable).interfaceId ||
interfaceId == type(IERC721MetadataUpgradeable).interfaceId ||
super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC721-balanceOf}.
*/
function balanceOf(address owner) public view virtual override returns (uint256) {
require(owner != address(0), "ERC721: address zero is not a valid owner");
return _balances[owner];
}
/**
* @dev See {IERC721-ownerOf}.
*/
function ownerOf(uint256 tokenId) public view virtual override returns (address) {
address owner = _owners[tokenId];
require(owner != address(0), "ERC721: invalid token ID");
return owner;
}
/**
* @dev See {IERC721Metadata-name}.
*/
function name() public view virtual override returns (string memory) {
return _name;
}
/**
* @dev See {IERC721Metadata-symbol}.
*/
function symbol() public view virtual override returns (string memory) {
return _symbol;
}
/**
* @dev See {IERC721Metadata-tokenURI}.
*/
function tokenURI(uint256 tokenId) public view virtual override returns (string memory) {
_requireMinted(tokenId);
string memory baseURI = _baseURI();
return bytes(baseURI).length > 0 ? string(abi.encodePacked(baseURI, tokenId.toString())) : "";
}
/**
* @dev Base URI for computing {tokenURI}. If set, the resulting URI for each
* token will be the concatenation of the `baseURI` and the `tokenId`. Empty
* by default, can be overridden in child contracts.
*/
function _baseURI() internal view virtual returns (string memory) {
return "";
}
/**
* @dev See {IERC721-approve}.
*/
function approve(address to, uint256 tokenId) public virtual override {
address owner = ERC721Upgradeable.ownerOf(tokenId);
require(to != owner, "ERC721: approval to current owner");
require(
_msgSender() == owner || isApprovedForAll(owner, _msgSender()),
"ERC721: approve caller is not token owner nor approved for all"
);
_approve(to, tokenId);
}
/**
* @dev See {IERC721-getApproved}.
*/
function getApproved(uint256 tokenId) public view virtual override returns (address) {
_requireMinted(tokenId);
return _tokenApprovals[tokenId];
}
/**
* @dev See {IERC721-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
_setApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC721-isApprovedForAll}.
*/
function isApprovedForAll(address owner, address operator) public view virtual override returns (bool) {
return _operatorApprovals[owner][operator];
}
/**
* @dev See {IERC721-transferFrom}.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_transfer(from, to, tokenId);
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) public virtual override {
safeTransferFrom(from, to, tokenId, "");
}
/**
* @dev See {IERC721-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes memory data
) public virtual override {
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_safeTransfer(from, to, tokenId, data);
}
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* `data` is additional data, it has no specified format and it is sent in call to `to`.
*
* This internal function is equivalent to {safeTransferFrom}, and can be used to e.g.
* implement alternative mechanisms to perform token transfer, such as signature-based.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeTransfer(
address from,
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_transfer(from, to, tokenId);
require(_checkOnERC721Received(from, to, tokenId, data), "ERC721: transfer to non ERC721Receiver implementer");
}
/**
* @dev Returns whether `tokenId` exists.
*
* Tokens can be managed by their owner or approved accounts via {approve} or {setApprovalForAll}.
*
* Tokens start existing when they are minted (`_mint`),
* and stop existing when they are burned (`_burn`).
*/
function _exists(uint256 tokenId) internal view virtual returns (bool) {
return _owners[tokenId] != address(0);
}
/**
* @dev Returns whether `spender` is allowed to manage `tokenId`.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function _isApprovedOrOwner(address spender, uint256 tokenId) internal view virtual returns (bool) {
address owner = ERC721Upgradeable.ownerOf(tokenId);
return (spender == owner || isApprovedForAll(owner, spender) || getApproved(tokenId) == spender);
}
/**
* @dev Safely mints `tokenId` and transfers it to `to`.
*
* Requirements:
*
* - `tokenId` must not exist.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function _safeMint(address to, uint256 tokenId) internal virtual {
_safeMint(to, tokenId, "");
}
/**
* @dev Same as {xref-ERC721-_safeMint-address-uint256-}[`_safeMint`], with an additional `data` parameter which is
* forwarded in {IERC721Receiver-onERC721Received} to contract recipients.
*/
function _safeMint(
address to,
uint256 tokenId,
bytes memory data
) internal virtual {
_mint(to, tokenId);
require(
_checkOnERC721Received(address(0), to, tokenId, data),
"ERC721: transfer to non ERC721Receiver implementer"
);
}
/**
* @dev Mints `tokenId` and transfers it to `to`.
*
* WARNING: Usage of this method is discouraged, use {_safeMint} whenever possible
*
* Requirements:
*
* - `tokenId` must not exist.
* - `to` cannot be the zero address.
*
* Emits a {Transfer} event.
*/
function _mint(address to, uint256 tokenId) internal virtual {
require(to != address(0), "ERC721: mint to the zero address");
require(!_exists(tokenId), "ERC721: token already minted");
_beforeTokenTransfer(address(0), to, tokenId);
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(address(0), to, tokenId);
_afterTokenTransfer(address(0), to, tokenId);
}
/**
* @dev Destroys `tokenId`.
* The approval is cleared when the token is burned.
*
* Requirements:
*
* - `tokenId` must exist.
*
* Emits a {Transfer} event.
*/
function _burn(uint256 tokenId) internal virtual {
address owner = ERC721Upgradeable.ownerOf(tokenId);
_beforeTokenTransfer(owner, address(0), tokenId);
// Clear approvals
_approve(address(0), tokenId);
_balances[owner] -= 1;
delete _owners[tokenId];
emit Transfer(owner, address(0), tokenId);
_afterTokenTransfer(owner, address(0), tokenId);
}
/**
* @dev Transfers `tokenId` from `from` to `to`.
* As opposed to {transferFrom}, this imposes no restrictions on msg.sender.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
*
* Emits a {Transfer} event.
*/
function _transfer(
address from,
address to,
uint256 tokenId
) internal virtual {
require(ERC721Upgradeable.ownerOf(tokenId) == from, "ERC721: transfer from incorrect owner");
require(to != address(0), "ERC721: transfer to the zero address");
_beforeTokenTransfer(from, to, tokenId);
// Clear approvals from the previous owner
_approve(address(0), tokenId);
_balances[from] -= 1;
_balances[to] += 1;
_owners[tokenId] = to;
emit Transfer(from, to, tokenId);
_afterTokenTransfer(from, to, tokenId);
}
/**
* @dev Approve `to` to operate on `tokenId`
*
* Emits an {Approval} event.
*/
function _approve(address to, uint256 tokenId) internal virtual {
_tokenApprovals[tokenId] = to;
emit Approval(ERC721Upgradeable.ownerOf(tokenId), to, tokenId);
}
/**
* @dev Approve `operator` to operate on all of `owner` tokens
*
* Emits an {ApprovalForAll} event.
*/
function _setApprovalForAll(
address owner,
address operator,
bool approved
) internal virtual {
require(owner != operator, "ERC721: approve to caller");
_operatorApprovals[owner][operator] = approved;
emit ApprovalForAll(owner, operator, approved);
}
/**
* @dev Reverts if the `tokenId` has not been minted yet.
*/
function _requireMinted(uint256 tokenId) internal view virtual {
require(_exists(tokenId), "ERC721: invalid token ID");
}
/**
* @dev Internal function to invoke {IERC721Receiver-onERC721Received} on a target address.
* The call is not executed if the target address is not a contract.
*
* @param from address representing the previous owner of the given token ID
* @param to target address that will receive the tokens
* @param tokenId uint256 ID of the token to be transferred
* @param data bytes optional data to send along with the call
* @return bool whether the call correctly returned the expected magic value
*/
function _checkOnERC721Received(
address from,
address to,
uint256 tokenId,
bytes memory data
) private returns (bool) {
if (to.isContract()) {
try IERC721ReceiverUpgradeable(to).onERC721Received(_msgSender(), from, tokenId, data) returns (bytes4 retval) {
return retval == IERC721ReceiverUpgradeable.onERC721Received.selector;
} catch (bytes memory reason) {
if (reason.length == 0) {
revert("ERC721: transfer to non ERC721Receiver implementer");
} else {
/// @solidity memory-safe-assembly
assembly {
revert(add(32, reason), mload(reason))
}
}
}
} else {
return true;
}
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning.
*
* Calling conditions:
*
* - When `from` and `to` are both non-zero, ``from``'s `tokenId` will be
* transferred to `to`.
* - When `from` is zero, `tokenId` will be minted for `to`.
* - When `to` is zero, ``from``'s `tokenId` will be burned.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
/**
* @dev Hook that is called after any transfer of tokens. This includes
* minting and burning.
*
* Calling conditions:
*
* - when `from` and `to` are both non-zero.
* - `from` and `to` are never both zero.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _afterTokenTransfer(
address from,
address to,
uint256 tokenId
) internal virtual {}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[44] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC721/extensions/ERC721Burnable.sol)
pragma solidity ^0.8.0;
import "../ERC721Upgradeable.sol";
import "../../../utils/ContextUpgradeable.sol";
import "../../../proxy/utils/Initializable.sol";
/**
* @title ERC721 Burnable Token
* @dev ERC721 Token that can be burned (destroyed).
*/
abstract contract ERC721BurnableUpgradeable is Initializable, ContextUpgradeable, ERC721Upgradeable {
function __ERC721Burnable_init() internal onlyInitializing {
}
function __ERC721Burnable_init_unchained() internal onlyInitializing {
}
/**
* @dev Burns `tokenId`. See {ERC721-_burn}.
*
* Requirements:
*
* - The caller must own `tokenId` or be an approved operator.
*/
function burn(uint256 tokenId) public virtual {
//solhint-disable-next-line max-line-length
require(_isApprovedOrOwner(_msgSender(), tokenId), "ERC721: caller is not token owner nor approved");
_burn(tokenId);
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
import "../proxy/utils/Initializable.sol";
/**
* @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 ContextUpgradeable is Initializable {
function __Context_init() internal onlyInitializing {
}
function __Context_init_unchained() internal onlyInitializing {
}
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/ERC165.sol)
pragma solidity ^0.8.0;
import "./IERC165Upgradeable.sol";
import "../../proxy/utils/Initializable.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 ERC165Upgradeable is Initializable, IERC165Upgradeable {
function __ERC165_init() internal onlyInitializing {
}
function __ERC165_init_unchained() internal onlyInitializing {
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
return interfaceId == type(IERC165Upgradeable).interfaceId;
}
/**
* @dev This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[50] private __gap;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library Strings {
bytes16 private constant _HEX_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) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @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] = _HEX_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);
}
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface INFTDropCollectionInitializer {
function initialize(
address payable _creator,
string calldata _name,
string calldata _symbol,
string calldata _baseURI,
bytes32 _postRevealBaseURIHash,
uint32 _maxTokenId,
address _additionalMinter,
address payable _paymentAddress
) external;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice The required interface for collections to support the NFTDropMarket.
* @dev This interface must be registered as a ERC165 supported interface to support the NFTDropMarket.
*/
interface INFTDropCollectionMint {
function mintCountTo(uint16 count, address to) external returns (uint256 firstTokenId);
function numberOfTokensAvailableToMint() external view returns (uint256 count);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/introspection/ERC165Upgradeable.sol";
import "../../interfaces/IGetFees.sol";
import "../../interfaces/IGetRoyalties.sol";
import "../../interfaces/IRoyaltyInfo.sol";
import "../../interfaces/ITokenCreator.sol";
import "../shared/Constants.sol";
/**
* @title Defines various royalty APIs for broad marketplace support.
*/
abstract contract CollectionRoyalties is IGetRoyalties, IGetFees, IRoyaltyInfo, ITokenCreator, ERC165Upgradeable {
/**
* @notice Returns an array of recipient addresses to which royalties for secondary sales should be sent.
* The expected royalty amount is communicated with `getFeeBps`.
* @param tokenId The tokenId of the NFT to get the royalty recipients for.
* @return recipients An array of addresses to which royalties should be sent.
*/
function getFeeRecipients(uint256 tokenId) external view returns (address payable[] memory recipients) {
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
}
/**
* @notice Returns an array of royalties to be sent for secondary sales in basis points.
* The expected recipients is communicated with `getFeeRecipients`.
* @dev The tokenId param is ignored since all NFTs return the same value.
* @return feesInBasisPoints The array of fees to be sent to each recipient, in basis points.
*/
function getFeeBps(
uint256 /* tokenId */
) external pure returns (uint256[] memory feesInBasisPoints) {
feesInBasisPoints = new uint256[](1);
feesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice Returns an array of royalties to be sent for secondary sales.
* @dev The data is the same as when calling getFeeRecipients and getFeeBps separately.
* @param tokenId The tokenId of the NFT to get the royalties for.
* @return recipients An array of addresses to which royalties should be sent.
* @return feesInBasisPoints The array of fees to be sent to each recipient address.
*/
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory feesInBasisPoints)
{
recipients = new address payable[](1);
recipients[0] = getTokenCreatorPaymentAddress(tokenId);
feesInBasisPoints = new uint256[](1);
feesInBasisPoints[0] = ROYALTY_IN_BASIS_POINTS;
}
/**
* @notice The address to pay the proceeds/royalties for the collection.
*/
function getTokenCreatorPaymentAddress(
uint256 /* tokenId */
) public view virtual returns (address payable);
/**
* @notice Returns the receiver and the amount to be sent for a secondary sale.
* @param tokenId The tokenId of the NFT to get the royalty recipient and amount for.
* @param salePrice The total price of the sale.
* @return receiver The royalty recipient address for this sale.
* @return royaltyAmount The total amount that should be sent to the `receiver`.
*/
function royaltyInfo(uint256 tokenId, uint256 salePrice)
external
view
returns (address receiver, uint256 royaltyAmount)
{
receiver = getTokenCreatorPaymentAddress(tokenId);
unchecked {
royaltyAmount = salePrice / ROYALTY_RATIO;
}
}
/**
* @inheritdoc ERC165Upgradeable
* @dev Checks the supported royalty interfaces.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool interfaceSupported) {
if (
interfaceId == type(IRoyaltyInfo).interfaceId ||
interfaceId == type(ITokenCreator).interfaceId ||
interfaceId == type(IGetRoyalties).interfaceId ||
interfaceId == type(IGetFees).interfaceId
) {
interfaceSupported = true;
} else {
interfaceSupported = super.supportsInterface(interfaceId);
}
}
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/token/ERC721/extensions/ERC721BurnableUpgradeable.sol";
import "../../interfaces/ITokenCreator.sol";
/**
* @title Extends the OZ ERC721 implementation for collections which mint sequential token IDs.
*/
abstract contract SequentialMintCollection is ITokenCreator, Initializable, ERC721BurnableUpgradeable {
/****** Slot 0 (after inheritance) ******/
/**
* @notice The creator/owner of this NFT collection.
* @dev This is the default royalty recipient if an different `paymentAddress` was not provided.
*/
address payable public owner;
/**
* @notice The tokenId of the most recently created NFT.
* @dev Minting starts at tokenId 1. Each mint will use this value + 1.
*/
uint32 public latestTokenId;
/**
* @notice The max tokenId which can be minted.
*/
uint32 public maxTokenId;
/**
* @notice Tracks how many tokens have been burned.
* @dev This number is used to calculate the total supply efficiently.
*/
uint32 private burnCounter;
/****** End of storage ******/
/**
* @notice Emitted when the max tokenId supported by this collection is defined.
* @param maxTokenId The new max tokenId. All NFTs in this collection will have a tokenId less than
* or equal to this value.
*/
event MaxTokenIdUpdated(uint256 indexed maxTokenId);
/**
* @notice Emitted when this collection is self destructed by the owner.
* @param admin A collection admin at the time this collection was self destructed.
*/
event SelfDestruct(address indexed admin);
modifier onlyCreator() {
require(msg.sender == owner, "SequentialMintCollection: Caller is not creator");
_;
}
function _initializeSequentialMintCollection(address payable _creator, uint32 _maxTokenId) internal onlyInitializing {
require(_creator != address(0), "SequentialMintCollection: Creator cannot be the zero address");
owner = _creator;
maxTokenId = _maxTokenId;
}
/**
* @notice Allows the collection owner to destroy this contract only if
* no NFTs have been minted yet or the minted NFTs have been burned.
*/
function _selfDestruct() internal {
require(totalSupply() == 0, "SequentialMintCollection: Any NFTs minted must be burned first");
emit SelfDestruct(msg.sender);
selfdestruct(payable(msg.sender));
}
/**
* @notice Allows the owner to set a max tokenID.
* This provides a guarantee to collectors about the limit of this collection contract, if applicable.
* @dev Once this value has been set, it may be decreased but can never be increased.
* @param _maxTokenId The max tokenId to set, all NFTs must have a tokenId less than or equal to this value.
*/
function _updateMaxTokenId(uint32 _maxTokenId) internal {
require(_maxTokenId != 0, "SequentialMintCollection: Max token ID may not be cleared");
require(maxTokenId == 0 || _maxTokenId < maxTokenId, "SequentialMintCollection: Max token ID may not increase");
require(latestTokenId <= _maxTokenId, "SequentialMintCollection: Max token ID must be >= last mint");
maxTokenId = _maxTokenId;
emit MaxTokenIdUpdated(_maxTokenId);
}
function _burn(uint256 tokenId) internal virtual override {
unchecked {
// Number of burned tokens cannot exceed latestTokenId which is the same size.
++burnCounter;
}
super._burn(tokenId);
}
/**
* @notice Returns the creator of this NFT collection.
* @dev The tokenId param is ignored since all NFTs return the same value.
* @return creator The creator of this collection.
*/
function tokenCreator(
uint256 /* tokenId */
) external view returns (address payable creator) {
creator = owner;
}
/**
* @notice Count of NFTs tracked by this contract.
* @dev From the ERC-721 enumerable standard.
* @return supply The total number of NFTs still tracked by this contract.
*/
function totalSupply() public view returns (uint256 supply) {
unchecked {
// Number of tokens minted is always >= burned tokens.
supply = latestTokenId - burnCounter;
}
}
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
/**
* @title Defines a role for admin accounts.
* @dev Wraps the default admin role from OpenZeppelin's AccessControl for easy integration.
*/
abstract contract AdminRole is Initializable, AccessControlUpgradeable {
function _initializeAdminRole(address admin) internal onlyInitializing {
// Grant the role to a specified account
_grantRole(DEFAULT_ADMIN_ROLE, admin);
}
modifier onlyAdmin() {
require(hasRole(DEFAULT_ADMIN_ROLE, msg.sender), "AdminRole: caller does not have the Admin role");
_;
}
/**
* @notice Adds the account to the list of approved admins.
* @dev Only callable by admins as enforced by `grantRole`.
* @param account The address to be approved.
*/
function grantAdmin(address account) external {
grantRole(DEFAULT_ADMIN_ROLE, account);
}
/**
* @notice Removes the account from the list of approved admins.
* @dev Only callable by admins as enforced by `revokeRole`.
* @param account The address to be removed from the approved list.
*/
function revokeAdmin(address account) external {
revokeRole(DEFAULT_ADMIN_ROLE, account);
}
/**
* @notice Checks if the account provided is an admin.
* @param account The address to check.
* @return approved True if the account is an admin.
* @dev This call is used by the royalty registry contract.
*/
function isAdmin(address account) public view returns (bool approved) {
approved = hasRole(DEFAULT_ADMIN_ROLE, account);
}
/**
* @notice This empty reserved space is put in place to allow future versions to add new
* variables without shifting down storage in the inheritance chain.
* See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
*/
uint256[1000] private __gap;
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
import "@openzeppelin/contracts-upgradeable/access/AccessControlUpgradeable.sol";
import "./AdminRole.sol";
/**
* @title Defines a role for minter accounts.
* @dev Wraps a role from OpenZeppelin's AccessControl for easy integration.
*/
abstract contract MinterRole is Initializable, AccessControlUpgradeable, AdminRole {
bytes32 public constant MINTER_ROLE = keccak256("MINTER_ROLE");
modifier onlyMinterOrAdmin() {
require(isMinter(msg.sender) || isAdmin(msg.sender), "MinterRole: Must have the minter or admin role");
_;
}
function _initializeMinterRole(address minter) internal onlyInitializing {
// Grant the role to a specified account
_grantRole(MINTER_ROLE, minter);
}
/**
* @notice Adds the account to the list of approved minters.
* @dev Only callable by admins as enforced by `grantRole`.
* @param account The address to be approved.
*/
function grantMinter(address account) external {
grantRole(MINTER_ROLE, account);
}
/**
* @notice Removes the account from the list of approved minters.
* @dev Only callable by admins as enforced by `revokeRole`.
* @param account The address to be removed from the approved list.
*/
function revokeMinter(address account) external {
revokeRole(MINTER_ROLE, account);
}
/**
* @notice Checks if the account provided is an minter.
* @param account The address to check.
* @return approved True if the account is an minter.
*/
function isMinter(address account) public view returns (bool approved) {
approved = hasRole(MINTER_ROLE, account);
}
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/// Constant values shared across mixins.
/**
* @dev 100% in basis points.
*/
uint256 constant BASIS_POINTS = 10000;
/**
* @dev The default admin role defined by OZ ACL modules.
*/
bytes32 constant DEFAULT_ADMIN_ROLE = 0x00;
/**
* @dev Cap the number of royalty recipients.
* A cap is required to ensure gas costs are not too high when a sale is settled.
*/
uint256 constant MAX_ROYALTY_RECIPIENTS = 5;
/**
* @dev The minimum increase of 10% required when making an offer or placing a bid.
*/
uint256 constant MIN_PERCENT_INCREMENT_DENOMINATOR = BASIS_POINTS / 1000;
/**
* @dev The gas limit used when making external read-only calls.
* This helps to ensure that external calls does not prevent the market from executing.
*/
uint256 constant READ_ONLY_GAS_LIMIT = 40000;
/**
* @dev Default royalty cut paid out on secondary sales.
* Set to 10% of the secondary sale.
*/
uint96 constant ROYALTY_IN_BASIS_POINTS = 1000;
/**
* @dev 10%, expressed as a denominator for more efficient calculations.
*/
uint256 constant ROYALTY_RATIO = BASIS_POINTS / ROYALTY_IN_BASIS_POINTS;
/**
* @dev The gas limit to send ETH to multiple recipients, enough for a 5-way split.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_MULTIPLE_RECIPIENTS = 210000;
/**
* @dev The gas limit to send ETH to a single recipient, enough for a contract with a simple receiver.
*/
uint256 constant SEND_VALUE_GAS_LIMIT_SINGLE_RECIPIENT = 20000;
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "@openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol";
import "../../interfaces/ICollectionFactory.sol";
/**
* @title Stores a reference to the factory which is used to create contract proxies.
*/
abstract contract ContractFactory {
using AddressUpgradeable for address;
/**
* @notice The address of the factory which was used to create this contract.
*/
address public immutable contractFactory;
modifier onlyContractFactory() {
require(msg.sender == contractFactory, "ContractFactory: Caller is not the factory");
_;
}
/**
* @notice Initialize the template's immutable variables.
* @param _contractFactory The factory which will be used to create these contracts.
*/
constructor(address _contractFactory) {
require(_contractFactory.isContract(), "ContractFactory: Factory is not a contract");
contractFactory = _contractFactory;
}
}
// 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 IAccessControlUpgradeable {
/**
* @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) (utils/Strings.sol)
pragma solidity ^0.8.0;
/**
* @dev String operations.
*/
library StringsUpgradeable {
bytes16 private constant _HEX_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) {
// Inspired by OraclizeAPI's implementation - MIT licence
// https://github.com/oraclize/ethereum-api/blob/b42146b063c7d6ee1358846c198246239e9360e8/oraclizeAPI_0.4.25.sol
if (value == 0) {
return "0";
}
uint256 temp = value;
uint256 digits;
while (temp != 0) {
digits++;
temp /= 10;
}
bytes memory buffer = new bytes(digits);
while (value != 0) {
digits -= 1;
buffer[digits] = bytes1(uint8(48 + uint256(value % 10)));
value /= 10;
}
return string(buffer);
}
/**
* @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
*/
function toHexString(uint256 value) internal pure returns (string memory) {
if (value == 0) {
return "0x00";
}
uint256 temp = value;
uint256 length = 0;
while (temp != 0) {
length++;
temp >>= 8;
}
return toHexString(value, length);
}
/**
* @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] = _HEX_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);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)
pragma solidity ^0.8.1;
/**
* @dev Collection of functions related to the address type
*/
library AddressUpgradeable {
/**
* @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
* ====
*
* [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://diligence.consensys.net/posts/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/v0.5.11/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 functionCall(target, data, "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");
require(isContract(target), "Address: call to non-contract");
(bool success, bytes memory returndata) = target.call{value: value}(data);
return verifyCallResult(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) {
require(isContract(target), "Address: static call to non-contract");
(bool success, bytes memory returndata) = target.staticcall(data);
return verifyCallResult(success, returndata, errorMessage);
}
/**
* @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
* revert reason 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 {
// 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/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 IERC165Upgradeable {
/**
* @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 v4.7.0) (token/ERC721/IERC721.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165Upgradeable.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721Upgradeable is IERC165Upgradeable {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId,
bytes calldata data
) external;
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(
address from,
address to,
uint256 tokenId
) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC721/IERC721Receiver.sol)
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721ReceiverUpgradeable {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721Receiver.onERC721Received.selector`.
*/
function onERC721Received(
address operator,
address from,
uint256 tokenId,
bytes calldata data
) external returns (bytes4);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC721/extensions/IERC721Metadata.sol)
pragma solidity ^0.8.0;
import "../IERC721Upgradeable.sol";
/**
* @title ERC-721 Non-Fungible Token Standard, optional metadata extension
* @dev See https://eips.ethereum.org/EIPS/eip-721
*/
interface IERC721MetadataUpgradeable is IERC721Upgradeable {
/**
* @dev Returns the token collection name.
*/
function name() external view returns (string memory);
/**
* @dev Returns the token collection symbol.
*/
function symbol() external view returns (string memory);
/**
* @dev Returns the Uniform Resource Identifier (URI) for `tokenId` token.
*/
function tokenURI(uint256 tokenId) external view returns (string memory);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice An interface for communicating fees to 3rd party marketplaces.
* @dev Originally implemented in mainnet contract 0x44d6e8933f8271abcf253c72f9ed7e0e4c0323b3
*/
interface IGetFees {
function getFeeRecipients(uint256 id) external view returns (address payable[] memory);
function getFeeBps(uint256 id) external view returns (uint256[] memory);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface IGetRoyalties {
function getRoyalties(uint256 tokenId)
external
view
returns (address payable[] memory recipients, uint256[] memory feesInBasisPoints);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice Interface for EIP-2981: NFT Royalty Standard.
* For more see: https://eips.ethereum.org/EIPS/eip-2981.
*/
interface IRoyaltyInfo {
/// @notice Called with the sale price to determine how much royalty
// is owed and to whom.
/// @param _tokenId - the NFT asset queried for royalty information
/// @param _salePrice - the sale price of the NFT asset specified by _tokenId
/// @return receiver - address of who should be sent the royalty payment
/// @return royaltyAmount - the royalty payment amount for _salePrice
function royaltyInfo(uint256 _tokenId, uint256 _salePrice)
external
view
returns (address receiver, uint256 royaltyAmount);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface ITokenCreator {
function tokenCreator(uint256 tokenId) external view returns (address payable);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
import "./IRoles.sol";
import "./IProxyCall.sol";
interface ICollectionFactory {
function rolesContract() external returns (IRoles);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
/**
* @notice Interface for a contract which implements admin roles.
*/
interface IRoles {
function isAdmin(address account) external view returns (bool);
function isOperator(address account) external view returns (bool);
}
// SPDX-License-Identifier: MIT OR Apache-2.0
pragma solidity ^0.8.12;
interface IProxyCall {
function proxyCallAndReturnAddress(address externalContract, bytes memory callData)
external
returns (address payable result);
}