Contract Name:
MemberLounge
Contract Source Code:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../utils/Context.sol";
/**
* @dev Contract module which provides a basic access control mechanism, where
* there is an account (an owner) that can be granted exclusive access to
* specific functions.
*
* By default, the owner account will be the one that deploys the contract. This
* can later be changed with {transferOwnership}.
*
* This module is used through inheritance. It will make available the modifier
* `onlyOwner`, which can be applied to your functions to restrict their use to
* the owner.
*/
abstract contract Ownable is Context {
address private _owner;
event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
/**
* @dev Initializes the contract setting the deployer as the initial owner.
*/
constructor () {
address msgSender = _msgSender();
_owner = msgSender;
emit OwnershipTransferred(address(0), msgSender);
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
_;
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
emit OwnershipTransferred(_owner, address(0));
_owner = address(0);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
emit OwnershipTransferred(_owner, newOwner);
_owner = newOwner;
}
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "./IERC1155.sol";
import "./IERC1155Receiver.sol";
import "./extensions/IERC1155MetadataURI.sol";
import "../../utils/Address.sol";
import "../../utils/Context.sol";
import "../../utils/introspection/ERC165.sol";
/**
* @dev Implementation of the basic standard multi-token.
* See https://eips.ethereum.org/EIPS/eip-1155
* Originally based on code by Enjin: https://github.com/enjin/erc-1155
*
* _Available since v3.1._
*/
contract ERC1155 is Context, ERC165, IERC1155, IERC1155MetadataURI {
using Address for address;
// Mapping from token ID to account balances
mapping (uint256 => mapping(address => uint256)) private _balances;
// Mapping from account to operator approvals
mapping (address => mapping(address => bool)) private _operatorApprovals;
// Used as the URI for all token types by relying on ID substitution, e.g. https://token-cdn-domain/{id}.json
string private _uri;
/**
* @dev See {_setURI}.
*/
constructor (string memory uri_) {
_setURI(uri_);
}
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId) public view virtual override(ERC165, IERC165) returns (bool) {
return interfaceId == type(IERC1155).interfaceId
|| interfaceId == type(IERC1155MetadataURI).interfaceId
|| super.supportsInterface(interfaceId);
}
/**
* @dev See {IERC1155MetadataURI-uri}.
*
* This implementation returns the same URI for *all* token types. It relies
* on the token type ID substitution mechanism
* https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
*
* Clients calling this function must replace the `\{id\}` substring with the
* actual token type ID.
*/
function uri(uint256) public view virtual override returns (string memory) {
return _uri;
}
/**
* @dev See {IERC1155-balanceOf}.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function balanceOf(address account, uint256 id) public view virtual override returns (uint256) {
require(account != address(0), "ERC1155: balance query for the zero address");
return _balances[id][account];
}
/**
* @dev See {IERC1155-balanceOfBatch}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(
address[] memory accounts,
uint256[] memory ids
)
public
view
virtual
override
returns (uint256[] memory)
{
require(accounts.length == ids.length, "ERC1155: accounts and ids length mismatch");
uint256[] memory batchBalances = new uint256[](accounts.length);
for (uint256 i = 0; i < accounts.length; ++i) {
batchBalances[i] = balanceOf(accounts[i], ids[i]);
}
return batchBalances;
}
/**
* @dev See {IERC1155-setApprovalForAll}.
*/
function setApprovalForAll(address operator, bool approved) public virtual override {
require(_msgSender() != operator, "ERC1155: setting approval status for self");
_operatorApprovals[_msgSender()][operator] = approved;
emit ApprovalForAll(_msgSender(), operator, approved);
}
/**
* @dev See {IERC1155-isApprovedForAll}.
*/
function isApprovedForAll(address account, address operator) public view virtual override returns (bool) {
return _operatorApprovals[account][operator];
}
/**
* @dev See {IERC1155-safeTransferFrom}.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
)
public
virtual
override
{
require(to != address(0), "ERC1155: transfer to the zero address");
require(
from == _msgSender() || isApprovedForAll(from, _msgSender()),
"ERC1155: caller is not owner nor approved"
);
address operator = _msgSender();
_beforeTokenTransfer(operator, from, to, _asSingletonArray(id), _asSingletonArray(amount), data);
uint256 fromBalance = _balances[id][from];
require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
_balances[id][from] = fromBalance - amount;
_balances[id][to] += amount;
emit TransferSingle(operator, from, to, id, amount);
_doSafeTransferAcceptanceCheck(operator, from, to, id, amount, data);
}
/**
* @dev See {IERC1155-safeBatchTransferFrom}.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
)
public
virtual
override
{
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
require(to != address(0), "ERC1155: transfer to the zero address");
require(
from == _msgSender() || isApprovedForAll(from, _msgSender()),
"ERC1155: transfer caller is not owner nor approved"
);
address operator = _msgSender();
_beforeTokenTransfer(operator, from, to, ids, amounts, data);
for (uint256 i = 0; i < ids.length; ++i) {
uint256 id = ids[i];
uint256 amount = amounts[i];
uint256 fromBalance = _balances[id][from];
require(fromBalance >= amount, "ERC1155: insufficient balance for transfer");
_balances[id][from] = fromBalance - amount;
_balances[id][to] += amount;
}
emit TransferBatch(operator, from, to, ids, amounts);
_doSafeBatchTransferAcceptanceCheck(operator, from, to, ids, amounts, data);
}
/**
* @dev Sets a new URI for all token types, by relying on the token type ID
* substitution mechanism
* https://eips.ethereum.org/EIPS/eip-1155#metadata[defined in the EIP].
*
* By this mechanism, any occurrence of the `\{id\}` substring in either the
* URI or any of the amounts in the JSON file at said URI will be replaced by
* clients with the token type ID.
*
* For example, the `https://token-cdn-domain/\{id\}.json` URI would be
* interpreted by clients as
* `https://token-cdn-domain/000000000000000000000000000000000000000000000000000000000004cce0.json`
* for token type ID 0x4cce0.
*
* See {uri}.
*
* Because these URIs cannot be meaningfully represented by the {URI} event,
* this function emits no events.
*/
function _setURI(string memory newuri) internal virtual {
_uri = newuri;
}
/**
* @dev Creates `amount` tokens of token type `id`, and assigns them to `account`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `account` cannot be the zero address.
* - If `account` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function _mint(address account, uint256 id, uint256 amount, bytes memory data) internal virtual {
require(account != address(0), "ERC1155: mint to the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, address(0), account, _asSingletonArray(id), _asSingletonArray(amount), data);
_balances[id][account] += amount;
emit TransferSingle(operator, address(0), account, id, amount);
_doSafeTransferAcceptanceCheck(operator, address(0), account, id, amount, data);
}
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_mint}.
*
* 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 _mintBatch(address to, uint256[] memory ids, uint256[] memory amounts, bytes memory data) internal virtual {
require(to != address(0), "ERC1155: mint to the zero address");
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
address operator = _msgSender();
_beforeTokenTransfer(operator, address(0), to, ids, amounts, data);
for (uint i = 0; i < ids.length; i++) {
_balances[ids[i]][to] += amounts[i];
}
emit TransferBatch(operator, address(0), to, ids, amounts);
_doSafeBatchTransferAcceptanceCheck(operator, address(0), to, ids, amounts, data);
}
/**
* @dev Destroys `amount` tokens of token type `id` from `account`
*
* Requirements:
*
* - `account` cannot be the zero address.
* - `account` must have at least `amount` tokens of token type `id`.
*/
function _burn(address account, uint256 id, uint256 amount) internal virtual {
require(account != address(0), "ERC1155: burn from the zero address");
address operator = _msgSender();
_beforeTokenTransfer(operator, account, address(0), _asSingletonArray(id), _asSingletonArray(amount), "");
uint256 accountBalance = _balances[id][account];
require(accountBalance >= amount, "ERC1155: burn amount exceeds balance");
_balances[id][account] = accountBalance - amount;
emit TransferSingle(operator, account, address(0), id, amount);
}
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {_burn}.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
*/
function _burnBatch(address account, uint256[] memory ids, uint256[] memory amounts) internal virtual {
require(account != address(0), "ERC1155: burn from the zero address");
require(ids.length == amounts.length, "ERC1155: ids and amounts length mismatch");
address operator = _msgSender();
_beforeTokenTransfer(operator, account, address(0), ids, amounts, "");
for (uint i = 0; i < ids.length; i++) {
uint256 id = ids[i];
uint256 amount = amounts[i];
uint256 accountBalance = _balances[id][account];
require(accountBalance >= amount, "ERC1155: burn amount exceeds balance");
_balances[id][account] = accountBalance - amount;
}
emit TransferBatch(operator, account, address(0), ids, amounts);
}
/**
* @dev Hook that is called before any token transfer. This includes minting
* and burning, as well as batched variants.
*
* The same hook is called on both single and batched variants. For single
* transfers, the length of the `id` and `amount` arrays will be 1.
*
* Calling conditions (for each `id` and `amount` pair):
*
* - When `from` and `to` are both non-zero, `amount` of ``from``'s tokens
* of token type `id` will be transferred to `to`.
* - When `from` is zero, `amount` tokens of token type `id` will be minted
* for `to`.
* - when `to` is zero, `amount` of ``from``'s tokens of token type `id`
* will be burned.
* - `from` and `to` are never both zero.
* - `ids` and `amounts` have the same, non-zero length.
*
* To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
*/
function _beforeTokenTransfer(
address operator,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
)
internal
virtual
{ }
function _doSafeTransferAcceptanceCheck(
address operator,
address from,
address to,
uint256 id,
uint256 amount,
bytes memory data
)
private
{
if (to.isContract()) {
try IERC1155Receiver(to).onERC1155Received(operator, from, id, amount, data) returns (bytes4 response) {
if (response != IERC1155Receiver(to).onERC1155Received.selector) {
revert("ERC1155: ERC1155Receiver rejected tokens");
}
} catch Error(string memory reason) {
revert(reason);
} catch {
revert("ERC1155: transfer to non ERC1155Receiver implementer");
}
}
}
function _doSafeBatchTransferAcceptanceCheck(
address operator,
address from,
address to,
uint256[] memory ids,
uint256[] memory amounts,
bytes memory data
)
private
{
if (to.isContract()) {
try IERC1155Receiver(to).onERC1155BatchReceived(operator, from, ids, amounts, data) returns (bytes4 response) {
if (response != IERC1155Receiver(to).onERC1155BatchReceived.selector) {
revert("ERC1155: ERC1155Receiver rejected tokens");
}
} catch Error(string memory reason) {
revert(reason);
} catch {
revert("ERC1155: transfer to non ERC1155Receiver implementer");
}
}
}
function _asSingletonArray(uint256 element) private pure returns (uint256[] memory) {
uint256[] memory array = new uint256[](1);
array[0] = element;
return array;
}
}
// SPDX-License-Identifier: MIT
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 be 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
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev _Available since v3.1._
*/
interface IERC1155Receiver is IERC165 {
/**
@dev Handles the receipt of a single ERC1155 token type. This function is
called at the end of a `safeTransferFrom` after the balance has been updated.
To accept the transfer, this must return
`bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))`
(i.e. 0xf23a6e61, or its own function selector).
@param operator The address which initiated the transfer (i.e. msg.sender)
@param from The address which previously owned the token
@param id The ID of the token being transferred
@param value The amount of tokens being transferred
@param data Additional data with no specified format
@return `bytes4(keccak256("onERC1155Received(address,address,uint256,uint256,bytes)"))` if transfer is allowed
*/
function onERC1155Received(
address operator,
address from,
uint256 id,
uint256 value,
bytes calldata data
)
external
returns(bytes4);
/**
@dev Handles the receipt of a multiple ERC1155 token types. This function
is called at the end of a `safeBatchTransferFrom` after the balances have
been updated. To accept the transfer(s), this must return
`bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))`
(i.e. 0xbc197c81, or its own function selector).
@param operator The address which initiated the batch transfer (i.e. msg.sender)
@param from The address which previously owned the token
@param ids An array containing ids of each token being transferred (order and length must match values array)
@param values An array containing amounts of each token being transferred (order and length must match ids array)
@param data Additional data with no specified format
@return `bytes4(keccak256("onERC1155BatchReceived(address,address,uint256[],uint256[],bytes)"))` if transfer is allowed
*/
function onERC1155BatchReceived(
address operator,
address from,
uint256[] calldata ids,
uint256[] calldata values,
bytes calldata data
)
external
returns(bytes4);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../IERC1155.sol";
/**
* @dev Interface of the optional ERC1155MetadataExtension interface, as defined
* in the https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[EIP].
*
* _Available since v3.1._
*/
interface IERC1155MetadataURI is IERC1155 {
/**
* @dev Returns the URI for token type `id`.
*
* If the `\{id\}` substring is present in the URI, it must be replaced by
* clients with the actual token type ID.
*/
function uri(uint256 id) external view returns (string memory);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC721 compliant contract.
*/
interface IERC721 is IERC165 {
/**
* @dev Emitted when `tokenId` token is transferred from `from` to `to`.
*/
event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
*/
event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);
/**
* @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
*/
event ApprovalForAll(address indexed owner, address indexed operator, bool approved);
/**
* @dev Returns the number of tokens in ``owner``'s account.
*/
function balanceOf(address owner) external view returns (uint256 balance);
/**
* @dev Returns the owner of the `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function ownerOf(uint256 tokenId) external view returns (address owner);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
* are aware of the ERC721 protocol to prevent tokens from being forever locked.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be have been allowed to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Transfers `tokenId` token from `from` to `to`.
*
* WARNING: Usage of this method is discouraged, use {safeTransferFrom} whenever possible.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
*
* Emits a {Transfer} event.
*/
function transferFrom(address from, address to, uint256 tokenId) external;
/**
* @dev Gives permission to `to` to transfer `tokenId` token to another account.
* The approval is cleared when the token is transferred.
*
* Only a single account can be approved at a time, so approving the zero address clears previous approvals.
*
* Requirements:
*
* - The caller must own the token or be an approved operator.
* - `tokenId` must exist.
*
* Emits an {Approval} event.
*/
function approve(address to, uint256 tokenId) external;
/**
* @dev Returns the account approved for `tokenId` token.
*
* Requirements:
*
* - `tokenId` must exist.
*/
function getApproved(uint256 tokenId) external view returns (address operator);
/**
* @dev Approve or remove `operator` as an operator for the caller.
* Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
*
* Requirements:
*
* - The `operator` cannot be the caller.
*
* Emits an {ApprovalForAll} event.
*/
function setApprovalForAll(address operator, bool _approved) external;
/**
* @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
*
* See {setApprovalForAll}
*/
function isApprovedForAll(address owner, address operator) external view returns (bool);
/**
* @dev Safely transfers `tokenId` token from `from` to `to`.
*
* Requirements:
*
* - `from` cannot be the zero address.
* - `to` cannot be the zero address.
* - `tokenId` token must exist and be owned by `from`.
* - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
* - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
*
* Emits a {Transfer} event.
*/
function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @title ERC721 token receiver interface
* @dev Interface for any contract that wants to support safeTransfers
* from ERC721 asset contracts.
*/
interface IERC721Receiver {
/**
* @dev Whenever an {IERC721} `tokenId` token is transferred to this contract via {IERC721-safeTransferFrom}
* by `operator` from `from`, this function is called.
*
* It must return its Solidity selector to confirm the token transfer.
* If any other value is returned or the interface is not implemented by the recipient, the transfer will be reverted.
*
* The selector can be obtained in Solidity with `IERC721.onERC721Received.selector`.
*/
function onERC721Received(address operator, address from, uint256 tokenId, bytes calldata data) external returns (bytes4);
}
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
/**
* @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
* ====
*/
function isContract(address account) internal view returns (bool) {
// This method relies on extcodesize, which returns 0 for contracts in
// construction, since the code is only stored at the end of the
// constructor execution.
uint256 size;
// solhint-disable-next-line no-inline-assembly
assembly { size := extcodesize(account) }
return size > 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");
// solhint-disable-next-line avoid-low-level-calls, avoid-call-value
(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");
// solhint-disable-next-line avoid-low-level-calls
(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");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.staticcall(data);
return _verifyCallResult(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) {
require(isContract(target), "Address: delegate call to non-contract");
// solhint-disable-next-line avoid-low-level-calls
(bool success, bytes memory returndata) = target.delegatecall(data);
return _verifyCallResult(success, returndata, errorMessage);
}
function _verifyCallResult(bool success, bytes memory returndata, string memory errorMessage) private 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
// solhint-disable-next-line no-inline-assembly
assembly {
let returndata_size := mload(returndata)
revert(add(32, returndata), returndata_size)
}
} else {
revert(errorMessage);
}
}
}
}
// SPDX-License-Identifier: MIT
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) {
this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
return msg.data;
}
}
// SPDX-License-Identifier: MIT
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
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
pragma solidity ^0.8.0;
//-----------------------------------------------------------------------------
// geneticchain.io - NextGen Generative NFT Platform
//-----------------------------------------------------------------------------
/*\_____________________________________________________________ .¿yy¿. __
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MMMM/ `"` . -$$$l MM yyyy / $$/%$$b.__.d$$$$/$.'7$$$$$$$. ` %SXXX. MM
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//-----------------------------------------------------------------------------
// Genetic Chain: Member Lounge
//-----------------------------------------------------------------------------
// Author: papaver (@tronicdreams)
//-----------------------------------------------------------------------------
import "openzeppelin-solidity/contracts/access/Ownable.sol";
import "openzeppelin-solidity/contracts/token/ERC721/IERC721.sol";
import "openzeppelin-solidity/contracts/token/ERC721/IERC721Receiver.sol";
import "openzeppelin-solidity/contracts/token/ERC1155/ERC1155.sol";
//------------------------------------------------------------------------------
// GeneticChainMetadata
//------------------------------------------------------------------------------
/**
* @title GeneticChain - MemberLounge
*/
contract MemberLounge is ERC1155, IERC721Receiver,
Ownable
{
//-------------------------------------------------------------------------
// structs
//-------------------------------------------------------------------------
struct Token {
uint16 passList;
uint56 maxSupply;
uint56 totalSupply;
int64 minStakeTime;
int64 createdTS;
}
struct Pass {
uint8 passId;
uint16 tokenId;
int64 stakedTS;
}
//-------------------------------------------------------------------------
// events
//-------------------------------------------------------------------------
/**
* Emited when a new token is created.
*/
event TokenCreated(uint256 tokenId, uint16 passList, uint56 maxSupply,
int64 minStakeTime, int64 createdTS);
/**
* Emited when a new pass is staked.
*/
event Staked(address indexed owner, address pass, uint256 tokenId, int64 stakedTS);
/**
* Emited when a new pass is staked.
*/
event Unstaked(address indexed owner, address pass, uint256 tokenId);
/**
* Emited when a reward is claimed.
*/
event RewardsClaimed(address indexed owner, uint256 tokenId, uint256 amount);
//-------------------------------------------------------------------------
// constants
//-------------------------------------------------------------------------
address constant kDeadAddy = 0x000000000000000000000000000000000000dEaD;
// token name/symbol
string constant private _name = "Genetic Chain Member Lounge";
string constant private _symbol = "GCML";
// contract info
string public _contractUri;
//-------------------------------------------------------------------------
// fields
//-------------------------------------------------------------------------
// track tokens
Token[] private _tokens;
// handle token uri overrides
mapping (uint256 => string) private _ipfsHash;
// roles
mapping (address => bool) private _minterAddress;
mapping (address => bool) private _burnerAddress;
// staking
IERC721[] private _passes;
mapping (address => uint8) private _passIdx;
mapping (address => Pass[]) private _stakedPasses;
// claim
mapping (uint256 => bool) private _claims;
//-------------------------------------------------------------------------
// ctor
//-------------------------------------------------------------------------
constructor(
string memory baseUri,
string memory contractUri,
address[] memory passes)
ERC1155(baseUri)
{
// start token index at 1
_tokens.push();
// start pass index at 1 else we can't use 0 index to indicate
// an invalid pass inside _passIdx
_passes.push();
// save contract uri
_contractUri = contractUri;
// register passes
for (uint256 i = 0; i < passes.length; ++i) {
_registerPassContract(passes[i]);
}
}
//-------------------------------------------------------------------------
// modifiers
//-------------------------------------------------------------------------
modifier validTokenId(uint256 tokenId) {
require(_created(tokenId), "invalid token");
_;
}
//-------------------------------------------------------------------------
/**
* Verify caller is authorized minter.
*/
modifier isMinter() {
require(_minterAddress[_msgSender()] || owner() == _msgSender(), "caller not minter");
_;
}
//-------------------------------------------------------------------------
/**
* Verify caller is authorized burner.
*/
modifier isBurner() {
require(_burnerAddress[_msgSender()], "caller not burner");
_;
}
//-------------------------------------------------------------------------
// internal
//-------------------------------------------------------------------------
/**
* @dev Returns whether the specified token was created.
*/
function _created(uint256 id)
internal view
returns (bool)
{
return id < _tokens.length && _tokens[id].createdTS > 0;
}
//-------------------------------------------------------------------------
/**
* @dev Returns whether the specified token has supply.
*/
function _exists(uint256 id)
internal view
returns (bool)
{
return id < _tokens.length && _tokens[id].totalSupply > 0;
}
//-------------------------------------------------------------------------
function _registerPassContract(address pass)
internal
{
require(IERC165(pass).supportsInterface(type(IERC721).interfaceId), "not IERC721 compliant");
_passIdx[pass] = uint8(_passes.length);
_passes.push(IERC721(pass));
}
//-------------------------------------------------------------------------
function _mkClaimId(address claimee, uint256 tokenId)
internal pure
returns(uint256)
{
return uint256(uint160(claimee)) << 96 | tokenId;
}
//-------------------------------------------------------------------------
function _inPassList(uint8 passId, uint16 passList)
internal pure
returns(bool)
{
return passList & uint16(1 << (passId - 1)) != 0;
}
//-------------------------------------------------------------------------
function _calculateRewards(address claimee, uint256 tokenId)
internal view
returns(uint256 rewards)
{
// token to calculate rewards for
Token storage token = _tokens[tokenId];
// claim rewards for passes staked long enough
uint256 stakedCount = _stakedPasses[claimee].length;
for (uint256 i = 0; i < stakedCount; ++i) {
Pass storage stakedPass = _stakedPasses[claimee][i];
int64 timeElapsed = token.createdTS - stakedPass.stakedTS;
if (timeElapsed >= token.minStakeTime
&& _inPassList(stakedPass.passId, token.passList))
{
rewards += 1;
}
}
}
//-------------------------------------------------------------------------
// ERC165
//-------------------------------------------------------------------------
/**
* @dev See {IERC165-supportsInterface}.
*/
function supportsInterface(bytes4 interfaceId)
public view virtual override(ERC1155)
returns (bool)
{
return interfaceId == type(IERC721Receiver).interfaceId
|| super.supportsInterface(interfaceId);
}
//-------------------------------------------------------------------------
// ERC1155
//-------------------------------------------------------------------------
/**
* @dev See {ERC1155-_mint}.
*/
function _mint(
address account, uint256 id, uint256 amount, bytes memory data)
internal virtual override validTokenId(id)
{
super._mint(account, id, amount, data);
_tokens[id].totalSupply += uint56(amount);
require(_tokens[id].totalSupply <= _tokens[id].maxSupply,
'amount exceed maxsupply');
}
//-------------------------------------------------------------------------
/**
* @dev See {ERC1155-_mintBatch}.
*/
function _mintBatch(
address to, uint256[] memory ids, uint256[] memory amounts,
bytes memory data)
internal virtual override
{
super._mintBatch(to, ids, amounts, data);
unchecked {
for (uint256 i = 0; i < ids.length; ++i) {
uint256 id = ids[i];
require(_created(id), 'invalid token');
_tokens[id].totalSupply += uint56(amounts[i]);
require(_tokens[id].totalSupply <= _tokens[id].maxSupply,
'amount exceed maxsupply');
}
}
}
//-------------------------------------------------------------------------
/**
* @dev See {ERC1155-_burn}.
*/
function _burn(address account, uint256 id, uint256 amount)
internal virtual override validTokenId(id)
{
super._burn(account, id, amount);
unchecked {
_tokens[id].totalSupply -= uint56(amount);
}
}
//-------------------------------------------------------------------------
/**
* @dev See {ERC1155-_burnBatch}.
*/
function _burnBatch(
address account, uint256[] memory ids, uint256[] memory amounts)
internal virtual override
{
super._burnBatch(account, ids, amounts);
unchecked {
for (uint256 i = 0; i < ids.length; ++i) {
uint256 id = ids[i];
_tokens[id].totalSupply -= uint56(amounts[i]);
}
}
}
//-------------------------------------------------------------------------
/**
* @dev See {IERC1155MetadataURI-uri}.
*
* Each token should have it's own override.
*/
function uri(uint256 id)
public view override validTokenId(id)
returns (string memory)
{
// append hash or use base
return bytes(_ipfsHash[id]).length == 0
? super.uri(id)
: string(abi.encodePacked(super.uri(id), "/", _ipfsHash[id]));
}
//-------------------------------------------------------------------------
// admin
//-------------------------------------------------------------------------
/**
* Authorize minter address.
*/
function registerMinterAddress(address minter)
public onlyOwner
{
require(!_minterAddress[minter], "address already registered");
_minterAddress[minter] = true;
}
//-------------------------------------------------------------------------
/**
* Remove minter address.
*/
function revokeMinterAddress(address minter)
public onlyOwner
{
require(_minterAddress[minter], "address not registered");
delete _minterAddress[minter];
}
//-------------------------------------------------------------------------
/**
* Authorize burner address.
*/
function registerBurnerAddress(address burner)
public onlyOwner
{
require(!_burnerAddress[burner], "address already registered");
_burnerAddress[burner] = true;
}
//-------------------------------------------------------------------------
/**
* Remove burner address.
*/
function revokeBurnerAddress(address burner)
public onlyOwner
{
require(_burnerAddress[burner], "address not registered");
delete _burnerAddress[burner];
}
//-------------------------------------------------------------------------
/**
* @dev Update default tokenUri used for all tokens.
*
* Should use the `\{id\}` replace mechanism to load the token id.
*/
function setURI(string memory tokenUri)
public onlyOwner
{
_setURI(tokenUri);
emit URI(tokenUri, 0);
}
//-------------------------------------------------------------------------
/**
* @dev Override token's ipfs hash.
*/
function setTokenIpfsHash(uint256 id, string memory ipfsHash)
public onlyOwner validTokenId(id)
{
_ipfsHash[id] = ipfsHash;
emit URI(uri(id), id);
}
//-------------------------------------------------------------------------
/**
* @dev Override token's pass list.
*/
function setTokenPassList(uint256 id, uint16 passList)
public onlyOwner validTokenId(id)
{
_tokens[id].passList = passList;
}
//-------------------------------------------------------------------------
/**
* @dev Override token's max supply.
*/
function setTokenMaxSupply(uint256 id, uint56 maxSupply)
public onlyOwner validTokenId(id)
{
require(maxSupply >= _tokens[id].totalSupply, 'max must exceed total');
_tokens[id].maxSupply = maxSupply;
}
//-------------------------------------------------------------------------
/**
* @dev Override token's minimum stake time.
*/
function setTokenMinStakeTime(uint256 id, int64 minStakeTime)
public onlyOwner validTokenId(id)
{
_tokens[id].minStakeTime = minStakeTime;
}
//-------------------------------------------------------------------------
/**
* @dev Override token's minimum stake time.
*/
function editToken(uint256 id, uint16 passList, uint56 maxSupply,
int64 minStakeTime, string memory ipfsHash)
public onlyOwner validTokenId(id)
{
require(maxSupply >= _tokens[id].totalSupply, 'max must exceed total');
_tokens[id].passList = passList;
_tokens[id].maxSupply = maxSupply;
_tokens[id].minStakeTime = minStakeTime;
_ipfsHash[id] = ipfsHash;
emit URI(uri(id), id);
}
//-------------------------------------------------------------------------
/**
* @dev Create a new token.
* @param passList uint16 Passes eligible for reward.
* @param amount uint256 Mint amount tokens to caller.
* @param minStakeTime int64 Minimum time pass stake required to qualify
* @param maxSupply uint56 Max mintable supply for this token.
* @param ipfsHash string Override ipfsHash for newly created token.
*/
function create(uint16 passList, uint256 amount, uint56 maxSupply,
int64 minStakeTime, string memory ipfsHash)
public onlyOwner
{
require(amount > 0, 'invalid amount');
require(bytes(ipfsHash).length > 0, 'invalid ipfshash');
// grab token id
uint256 tokenId = _tokens.length;
// add token
int64 createdAt = int64(int256(block.timestamp));
Token memory token = Token(passList, maxSupply, 0, minStakeTime, createdAt);
_tokens.push(token);
// override token's ipfsHash
_ipfsHash[tokenId] = ipfsHash;
emit URI(uri(tokenId), tokenId);
// mint a single token
_mint(msg.sender, tokenId, amount, "");
// created event
emit TokenCreated(tokenId, passList, maxSupply, minStakeTime, createdAt);
}
//-------------------------------------------------------------------------
function mint(address to, uint256 id, uint256 amount)
public isMinter
{
require(amount > 0, 'invalid amount');
_mint(to, id, amount, "");
}
//-------------------------------------------------------------------------
function mintBatch(address to,
uint256[] calldata ids, uint256[] calldata amounts)
external isMinter
{
_mintBatch(to, ids, amounts, "");
}
//-------------------------------------------------------------------------
function burn(address to, uint256 id, uint256 amount)
public isBurner
{
require(amount > 0, 'invalid amount');
_burn(to, id, amount);
}
//-------------------------------------------------------------------------
function burnBatch(address to,
uint256[] calldata ids, uint256[] calldata amounts)
external isBurner
{
_burnBatch(to, ids, amounts);
}
//-------------------------------------------------------------------------
// accessors
//-------------------------------------------------------------------------
/**
* @dev Conform to {IERC721Metadata-name}.
*/
function name()
public pure
returns (string memory)
{
return _name;
}
//-------------------------------------------------------------------------
/**
* @dev Conform to {IERC721Metadata-symbol}.
*/
function symbol()
public pure
returns (string memory)
{
return _symbol;
}
//-------------------------------------------------------------------------
/**
* @dev Total amount of tokens in with a given id.
*/
function totalSupply(uint256 id)
public view
returns (uint256)
{
return id < _tokens.length
? _tokens[id].totalSupply
: 0;
}
//-------------------------------------------------------------------------
// IERC721Receiver
//-------------------------------------------------------------------------
/**
* @dev See {IERC721Receiver-onERC721Received}.
*/
function onERC721Received(
address, address, uint256, bytes calldata)
public pure override
returns (bytes4)
{
return this.onERC721Received.selector ^ 0x23b872dd;
}
//-------------------------------------------------------------------------
// interface
//-------------------------------------------------------------------------
/**
* @dev Return token info.
*/
function getToken(uint256 id)
public view validTokenId(id)
returns (Token memory, string memory)
{
return (_tokens[id], _ipfsHash[id]);
}
//-------------------------------------------------------------------------
/**
* @dev Return list of all tokens.
*/
function allTokens()
public view
returns (Token[] memory)
{
// return empty so all token indecies line up
return _tokens;
}
//-------------------------------------------------------------------------
/**
* @dev Return list of pass contracts.
*/
function allPassContracts()
public view
returns (address[] memory)
{
// keep the first empty entry so index lines up with id
uint256 count = _passes.length;
address[] memory passes = new address[](count);
for (uint256 i = 0; i < count; ++i) {
passes[i] = address(_passes[i]);
}
return passes;
}
//-------------------------------------------------------------------------
/**
* @dev Return list of passes staked by staker.
*/
function getStakedPasses(address staker)
public view
returns (Pass[] memory stakedPasses)
{
stakedPasses = _stakedPasses[staker];
}
//-------------------------------------------------------------------------
/**
* @dev Query pass for owners balance.
*/
function balanceOfPass(address pass, address owner)
public
view
returns (uint256)
{
require(_passIdx[pass] != 0, 'invalid pass address');
// grab pass
uint8 passId = _passIdx[pass];
IERC721 pass721 = _passes[passId];
// return pass balance
return pass721.balanceOf(owner);
}
//-------------------------------------------------------------------------
/**
* @dev Stake single pass.
*/
function stakePass(address pass, uint256 tokenId)
public
{
require(_passIdx[pass] != 0, 'invalid pass address');
address sender = _msgSender();
// grab pass
uint8 passId = _passIdx[pass];
IERC721 pass721 = _passes[passId];
// verify ownership
require(pass721.ownerOf(tokenId) == sender, 'not pass owner');
// transfer here
pass721.transferFrom(sender, address(this), tokenId);
// save staked info
int64 stakedTS = int64(int256(block.timestamp));
Pass memory stakedPass = Pass(
passId,
uint16(tokenId),
stakedTS);
_stakedPasses[sender].push(stakedPass);
// track skate event
emit Staked(sender, pass, tokenId, stakedTS);
}
//-------------------------------------------------------------------------
/**
* @dev Unstake single pass.
*/
function unstakePass(address pass, uint256 tokenId)
public
{
require(_passIdx[pass] != 0, 'invalid pass address');
address sender = _msgSender();
// grab pass
uint8 passId = _passIdx[pass];
IERC721 pass721 = _passes[passId];
// find pass
uint256 stakedCount = _stakedPasses[sender].length;
for (uint256 i = 0; i < stakedCount; ++i) {
Pass storage stakedPass = _stakedPasses[sender][i];
if (stakedPass.passId == passId && stakedPass.tokenId == tokenId) {
// transfer pass back to owner
pass721.transferFrom(address(this), sender, tokenId);
// keep array compact
uint256 lastIndex = stakedCount - 1;
if (i != lastIndex) {
_stakedPasses[sender][i] = _stakedPasses[sender][lastIndex];
}
// cleanup
_stakedPasses[sender].pop();
// track unskate event
emit Unstaked(sender, pass, tokenId);
// no need to continue
return;
}
}
// invalid pass
require(false, 'pass not found');
}
//-------------------------------------------------------------------------
/**
* @dev Unstake all passes staked in contract.
*/
function unstakeAllPasses()
public
{
address sender = _msgSender();
require(_stakedPasses[sender].length > 0, 'no passes staked');
// unstake all passes
uint256 stakedCount = _stakedPasses[sender].length;
for (uint256 i = 0; i < stakedCount; ++i) {
Pass storage stakedPass = _stakedPasses[sender][i];
IERC721 pass721 = _passes[stakedPass.passId];
// transfer pass back to owner
pass721.transferFrom(address(this), sender, stakedPass.tokenId);
// track unskate event
emit Unstaked(sender, address(pass721), stakedPass.tokenId);
// cleanup
delete _stakedPasses[sender][i];
}
// cleanup
delete _stakedPasses[sender];
}
//-------------------------------------------------------------------------
/**
* Calculate rewards available for user for given tokenId.
*/
function calculateRewards(uint256 tokenId, address user)
public view validTokenId(tokenId)
returns(uint256)
{
uint256 claimId = _mkClaimId(user, tokenId);
return _claims[claimId]
? 0
: _calculateRewards(user, tokenId);
}
//-------------------------------------------------------------------------
function calculateRewardsBatch(uint256[] memory tokenIds, address user)
public view
returns(uint256[] memory)
{
uint256 count = tokenIds.length;
uint256[] memory rewards = new uint256[](count);
for (uint256 i = 0; i < count; ++i) {
rewards[i] = calculateRewards(tokenIds[i], user);
}
return rewards;
}
//-------------------------------------------------------------------------
/**
* @dev Claim single token for all passes.
*/
function claim(uint256 tokenId)
public validTokenId(tokenId)
{
address sender = _msgSender();
require(_stakedPasses[sender].length > 0, 'no passes staked');
// check claim
uint256 claimId = _mkClaimId(sender, tokenId);
require(!_claims[claimId], 'rewards claimed');
// process all passes
uint256 rewards = _calculateRewards(sender, tokenId);
require(rewards > 0, 'no rewards');
// mark as claimed
_claims[claimId] = true;
// mint token for claimee
_mint(sender, tokenId, rewards, "");
// record event
emit RewardsClaimed(sender, tokenId, rewards);
}
//-------------------------------------------------------------------------
/**
* @dev Claim multiple tokens at once.
*/
function claimBatch(uint256[] calldata tokenIds)
public
{
require(tokenIds.length > 0, 'no token ids');
uint256 tokenCount = tokenIds.length;
for (uint256 i = 0; i < tokenCount; ++i) {
claim(tokenIds[i]);
}
}
//-------------------------------------------------------------------------
function setContractURI(string memory contractUri)
external onlyOwner
{
_contractUri = contractUri;
}
//-------------------------------------------------------------------------
function contractURI()
public view
returns (string memory)
{
return _contractUri;
}
}