Contract Source Code:
// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
interface AggregatorV3Interface {
function decimals() external view returns (uint8);
function description() external view returns (string memory);
function version() external view returns (uint256);
function getRoundData(uint80 _roundId)
external
view
returns (
uint80 roundId,
int256 answer,
uint256 startedAt,
uint256 updatedAt,
uint80 answeredInRound
);
function latestRoundData()
external
view
returns (
uint80 roundId,
int256 answer,
uint256 startedAt,
uint256 updatedAt,
uint80 answeredInRound
);
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)
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() {
_transferOwnership(_msgSender());
}
/**
* @dev Throws if called by any account other than the owner.
*/
modifier onlyOwner() {
_checkOwner();
_;
}
/**
* @dev Returns the address of the current owner.
*/
function owner() public view virtual returns (address) {
return _owner;
}
/**
* @dev Throws if the sender is not the owner.
*/
function _checkOwner() internal view virtual {
require(owner() == _msgSender(), "Ownable: caller is not the owner");
}
/**
* @dev Leaves the contract without owner. It will not be possible to call
* `onlyOwner` functions anymore. Can only be called by the current owner.
*
* NOTE: Renouncing ownership will leave the contract without an owner,
* thereby removing any functionality that is only available to the owner.
*/
function renounceOwnership() public virtual onlyOwner {
_transferOwnership(address(0));
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Can only be called by the current owner.
*/
function transferOwnership(address newOwner) public virtual onlyOwner {
require(newOwner != address(0), "Ownable: new owner is the zero address");
_transferOwnership(newOwner);
}
/**
* @dev Transfers ownership of the contract to a new account (`newOwner`).
* Internal function without access restriction.
*/
function _transferOwnership(address newOwner) internal virtual {
address oldOwner = _owner;
_owner = newOwner;
emit OwnershipTransferred(oldOwner, newOwner);
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (security/ReentrancyGuard.sol)
pragma solidity ^0.8.0;
/**
* @dev Contract module that helps prevent reentrant calls to a function.
*
* Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
* available, which can be applied to functions to make sure there are no nested
* (reentrant) calls to them.
*
* Note that because there is a single `nonReentrant` guard, functions marked as
* `nonReentrant` may not call one another. This can be worked around by making
* those functions `private`, and then adding `external` `nonReentrant` entry
* points to them.
*
* TIP: If you would like to learn more about reentrancy and alternative ways
* to protect against it, check out our blog post
* https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
*/
abstract contract ReentrancyGuard {
// Booleans are more expensive than uint256 or any type that takes up a full
// word because each write operation emits an extra SLOAD to first read the
// slot's contents, replace the bits taken up by the boolean, and then write
// back. This is the compiler's defense against contract upgrades and
// pointer aliasing, and it cannot be disabled.
// The values being non-zero value makes deployment a bit more expensive,
// but in exchange the refund on every call to nonReentrant will be lower in
// amount. Since refunds are capped to a percentage of the total
// transaction's gas, it is best to keep them low in cases like this one, to
// increase the likelihood of the full refund coming into effect.
uint256 private constant _NOT_ENTERED = 1;
uint256 private constant _ENTERED = 2;
uint256 private _status;
constructor() {
_status = _NOT_ENTERED;
}
/**
* @dev Prevents a contract from calling itself, directly or indirectly.
* Calling a `nonReentrant` function from another `nonReentrant`
* function is not supported. It is possible to prevent this from happening
* by making the `nonReentrant` function external, and making it call a
* `private` function that does the actual work.
*/
modifier nonReentrant() {
_nonReentrantBefore();
_;
_nonReentrantAfter();
}
function _nonReentrantBefore() private {
// On the first call to nonReentrant, _status will be _NOT_ENTERED
require(_status != _ENTERED, "ReentrancyGuard: reentrant call");
// Any calls to nonReentrant after this point will fail
_status = _ENTERED;
}
function _nonReentrantAfter() private {
// By storing the original value once again, a refund is triggered (see
// https://eips.ethereum.org/EIPS/eip-2200)
_status = _NOT_ENTERED;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC1155/IERC1155.sol)
pragma solidity ^0.8.0;
import "../../utils/introspection/IERC165.sol";
/**
* @dev Required interface of an ERC1155 compliant contract, as defined in the
* https://eips.ethereum.org/EIPS/eip-1155[EIP].
*
* _Available since v3.1._
*/
interface IERC1155 is IERC165 {
/**
* @dev Emitted when `value` tokens of token type `id` are transferred from `from` to `to` by `operator`.
*/
event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);
/**
* @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
* transfers.
*/
event TransferBatch(
address indexed operator,
address indexed from,
address indexed to,
uint256[] ids,
uint256[] values
);
/**
* @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
* `approved`.
*/
event ApprovalForAll(address indexed account, address indexed operator, bool approved);
/**
* @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
*
* If an {URI} event was emitted for `id`, the standard
* https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
* returned by {IERC1155MetadataURI-uri}.
*/
event URI(string value, uint256 indexed id);
/**
* @dev Returns the amount of tokens of token type `id` owned by `account`.
*
* Requirements:
*
* - `account` cannot be the zero address.
*/
function balanceOf(address account, uint256 id) external view returns (uint256);
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
*
* Requirements:
*
* - `accounts` and `ids` must have the same length.
*/
function balanceOfBatch(address[] calldata accounts, uint256[] calldata ids)
external
view
returns (uint256[] memory);
/**
* @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
*
* Emits an {ApprovalForAll} event.
*
* Requirements:
*
* - `operator` cannot be the caller.
*/
function setApprovalForAll(address operator, bool approved) external;
/**
* @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
*
* See {setApprovalForAll}.
*/
function isApprovedForAll(address account, address operator) external view returns (bool);
/**
* @dev Transfers `amount` tokens of token type `id` from `from` to `to`.
*
* Emits a {TransferSingle} event.
*
* Requirements:
*
* - `to` cannot be the zero address.
* - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
* - `from` must have a balance of tokens of type `id` of at least `amount`.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
* acceptance magic value.
*/
function safeTransferFrom(
address from,
address to,
uint256 id,
uint256 amount,
bytes calldata data
) external;
/**
* @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
*
* Emits a {TransferBatch} event.
*
* Requirements:
*
* - `ids` and `amounts` must have the same length.
* - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
* acceptance magic value.
*/
function safeBatchTransferFrom(
address from,
address to,
uint256[] calldata ids,
uint256[] calldata amounts,
bytes calldata data
) external;
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (token/ERC1155/IERC1155Receiver.sol)
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.
*
* NOTE: 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.
*
* NOTE: 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
// OpenZeppelin Contracts (last updated v4.8.0) (token/ERC721/IERC721.sol)
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`.
*
* 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: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
* or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
* understand this adds an external call which potentially creates a reentrancy vulnerability.
*
* 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 v4.4.1 (utils/Context.sol)
pragma solidity ^0.8.0;
/**
* @dev Provides information about the current execution context, including the
* sender of the transaction and its data. While these are generally available
* via msg.sender and msg.data, they should not be accessed in such a direct
* manner, since when dealing with meta-transactions the account sending and
* paying for execution may not be the actual sender (as far as an application
* is concerned).
*
* This contract is only required for intermediate, library-like contracts.
*/
abstract contract Context {
function _msgSender() internal view virtual returns (address) {
return msg.sender;
}
function _msgData() internal view virtual returns (bytes calldata) {
return msg.data;
}
}
// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)
pragma solidity ^0.8.0;
/**
* @dev Interface of the ERC165 standard, as defined in the
* https://eips.ethereum.org/EIPS/eip-165[EIP].
*
* Implementers can declare support of contract interfaces, which can then be
* queried by others ({ERC165Checker}).
*
* For an implementation, see {ERC165}.
*/
interface IERC165 {
/**
* @dev Returns true if this contract implements the interface defined by
* `interfaceId`. See the corresponding
* https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
* to learn more about how these ids are created.
*
* This function call must use less than 30 000 gas.
*/
function supportsInterface(bytes4 interfaceId) external view returns (bool);
}
//SPDX-License-Identifier: MIT
pragma solidity 0.8.16;
import "@openzeppelin/contracts/token/ERC1155/IERC1155Receiver.sol";
import "@openzeppelin/contracts/token/ERC1155/IERC1155.sol";
import "@openzeppelin/contracts/token/ERC721/IERC721.sol";
import "@chainlink/contracts/src/v0.8/interfaces/AggregatorV3Interface.sol";
import "@openzeppelin/contracts/access/Ownable.sol";
import {ReentrancyGuard} from "@openzeppelin/contracts/security/ReentrancyGuard.sol";
interface IJAY {
function sell(uint256 value) external;
function buy(address reciever) external payable;
function burnFrom(address account, uint256 amount) external;
function ETHtoJAY(uint256 value) external view returns (uint256);
}
contract JayMart is Ownable, ReentrancyGuard {
// Define our price feed interface
AggregatorV3Interface internal priceFeed;
// Create variable to hold the team wallet address
address payable private TEAM_WALLET;
// Create variable to hold contract address
address payable private immutable JAY_ADDRESS;
// Define new IJAY interface
IJAY private immutable JAY;
// Define some constant variables
uint256 private constant SELL_NFT_PAYOUT = 2;
uint256 private constant SELL_NFT_FEE_VAULT = 4;
uint256 private constant SELL_NFT_FEE_TEAM = 4;
uint256 private constant BUY_NFT_FEE_TEAM = 2;
uint256 private constant USD_PRICE_SELL = 2 * 10 ** 18;
uint256 private constant USD_PRICE_BUY = 10 * 10 ** 18;
// Define variables for amount of NFTs bought/sold
uint256 private nftsBought;
uint256 private nftsSold;
// Create variables for gas fee calculation
uint256 private buyNftFeeEth = 0.01 * 10 ** 18;
uint256 private buyNftFeeJay = 10 * 10 ** 18;
uint256 private sellNftFeeEth = 0.001 * 10 ** 18;
// Create variable to hold when the next fee update can occur
uint256 private nextFeeUpdate = block.timestamp + (7 days);
// Constructor
constructor(address _jayAddress) {
JAY = IJAY(_jayAddress);
JAY_ADDRESS = payable(_jayAddress);
setTEAMWallet(0x985B6B9064212091B4b325F68746B77262801BcB);
priceFeed = AggregatorV3Interface(
0x5f4eC3Df9cbd43714FE2740f5E3616155c5b8419
); //main
}
function setTEAMWallet(address _address) public onlyOwner {
TEAM_WALLET = payable(_address);
}
/*
* Name: sendEth
* Purpose: Tranfer ETH tokens
* Parameters:
* - @param 1: Address
* - @param 2: Value
* Return: n/a
*/
function sendEth(address _address, uint256 _value) private {
(bool success, ) = _address.call{value: _value}("");
require(success, "ETH Transfer failed.");
}
/*
* Name: buyNFTs
* Purpose: Purchase NFTs with ETH
* Parameters:
* - @param 1: ERC721 Token Address
* - @param 2: ERC721 IDs
* - @param 3: ERC1155 Token Address
* - @param 4: ERC1155 IDs
* - @param 5: ERC1155 Amounts
* Return: n/a
*/
function buyNFTs(
address[] calldata erc721TokenAddress,
uint256[] calldata erc721Ids,
address[] calldata erc1155TokenAddress,
uint256[] calldata erc1155Ids,
uint256[] calldata erc1155Amounts
) external payable nonReentrant {
// Calculate total
require(
erc721TokenAddress.length + erc1155TokenAddress.length <= 500,
"Max is 500"
);
uint256 total = erc721TokenAddress.length;
// Transfer ERC721 NFTs
buyERC721(erc721TokenAddress, erc721Ids);
// Transfer ERC1155 NFTs
total += buyERC1155(erc1155TokenAddress, erc1155Ids, erc1155Amounts);
// Increase NFTs bought
nftsBought += total;
// Calculate Jay fee
uint256 _fee = total * (buyNftFeeEth);
// Make sure enough ETH is present
require(msg.value >= _fee, "You need to pay more ETH.");
// Send fees to designated wallets
sendEth(TEAM_WALLET, msg.value / (BUY_NFT_FEE_TEAM));
sendEth(JAY_ADDRESS, address(this).balance);
// Initiate burn method
JAY.burnFrom(msg.sender, total * (buyNftFeeJay));
}
/*
* Name: buyJay
* Purpose: Purchase JAY tokens by selling NFTs
* Parameters:
* - @param 1: ERC721 Token Address
* - @param 2: ERC721 IDs
* - @param 3: ERC1155 Token Address
* - @param 4: ERC1155 IDs
* - @param 5: ERC1155 Amounts
* Return: n/a
*/
function buyJay(
address[] calldata erc721TokenAddress,
uint256[] calldata erc721Ids,
address[] calldata erc1155TokenAddress,
uint256[] calldata erc1155Ids,
uint256[] calldata erc1155Amounts
) external payable nonReentrant {
require(
erc721TokenAddress.length + erc1155TokenAddress.length <= 500,
"Max is 500"
);
uint256 teamFee = msg.value / (SELL_NFT_FEE_TEAM);
uint256 jayFee = msg.value / (SELL_NFT_FEE_VAULT);
uint256 userValue = msg.value / (SELL_NFT_PAYOUT);
uint256 total = erc721TokenAddress.length;
// Transfer ERC721 NFTs
buyJayWithERC721(erc721TokenAddress, erc721Ids);
// Transfer ERC1155 NFTs
total += buyJayWithERC1155(
erc1155TokenAddress,
erc1155Ids,
erc1155Amounts
);
// Increase nftsSold variable
nftsSold += total;
// Calculate fee
uint256 _fee = total >= 100
? ((total) * (sellNftFeeEth)) / (2)
: (total) * (sellNftFeeEth);
// Make sure enough ETH is present
require(msg.value >= _fee, "You need to pay more ETH.");
// Send fees to their designated wallets
sendEth(TEAM_WALLET, teamFee);
sendEth(JAY_ADDRESS, jayFee);
// buy JAY
JAY.buy{value: userValue}(msg.sender);
}
/*
* Name: buyERC721
* Purpose: Transfer ERC721 NFTs
* Parameters:
* - @param 1: ERC721 Token Address
* - @param 2: ERC721 IDs
* Return: n/a
*/
function buyERC721(
address[] calldata _tokenAddress,
uint256[] calldata ids
) internal {
for (uint256 id = 0; id < ids.length; id++) {
IERC721(_tokenAddress[id]).safeTransferFrom(
address(this),
msg.sender,
ids[id]
);
}
}
/*
* Name: buyERC1155
* Purpose: Transfer ERC1155 NFTs
* Parameters:
* - @param 1: ERC1155 Token Address
* - @param 2: ERC1155 IDs
* - @param 3: ERC1155 Amounts
* Return: Amount of NFTs bought
*/
function buyERC1155(
address[] calldata _tokenAddress,
uint256[] calldata ids,
uint256[] calldata amounts
) internal returns (uint256) {
uint256 amount = 0;
for (uint256 id = 0; id < ids.length; id++) {
amount = amount + (amounts[id]);
IERC1155(_tokenAddress[id]).safeTransferFrom(
address(this),
msg.sender,
ids[id],
amounts[id],
""
);
}
return amount;
}
/*
* Name: buyJayWithERC721
* Purpose: Buy JAY from selling ERC721 NFTs
* Parameters:
* - @param 1: ERC721 Token Address
* - @param 2: ERC721 IDs
*
* Return: n/a
*/
function buyJayWithERC721(
address[] calldata _tokenAddress,
uint256[] calldata ids
) internal {
for (uint256 id = 0; id < ids.length; id++) {
IERC721(_tokenAddress[id]).safeTransferFrom(
msg.sender,
address(this),
ids[id]
);
}
}
/*
* Name: buyJayWithERC1155
* Purpose: Buy JAY from selling ERC1155 NFTs
* Parameters:
* - @param 1: ERC1155 Token Address
* - @param 2: ERC1155 IDs
* - @param 3: ERC1155 Amounts
*
* Return: Number of NFTs sold
*/
function buyJayWithERC1155(
address[] calldata _tokenAddress,
uint256[] calldata ids,
uint256[] calldata amounts
) internal returns (uint256) {
uint256 amount = 0;
for (uint256 id = 0; id < ids.length; id++) {
amount = amount + (amounts[id]);
IERC1155(_tokenAddress[id]).safeTransferFrom(
msg.sender,
address(this),
ids[id],
amounts[id],
""
);
}
return amount;
}
function getPriceSell(uint256 total) public view returns (uint256) {
return total * sellNftFeeEth;
}
function getPriceBuy(uint256 total) public view returns (uint256) {
return total * buyNftFeeEth;
}
function getFees()
public
view
returns (uint256, uint256, uint256, uint256)
{
return (sellNftFeeEth, buyNftFeeEth, buyNftFeeJay, nextFeeUpdate);
}
function getTotals() public view returns (uint256, uint256) {
return (nftsBought, nftsSold);
}
/*
* Name: updateFees
* Purpose: Update the NFT sales fees
* Parameters: n/a
* Return: Array of uint256: NFT Sell Fee (ETH), NFT Buy Fee (ETH), NFT Buy Fee (JAY), time of next update
*/
function updateFees()
external
nonReentrant
returns (uint256, uint256, uint256, uint256)
{
// Get latest price feed
(
uint80 roundID,
int256 price,
,
uint256 timestamp,
uint80 answeredInRound
) = priceFeed.latestRoundData();
require(price > 0, "Chainlink price <= 0");
require(answeredInRound >= roundID, "Stale price");
require(timestamp != 0, "Round not complete");
uint256 _price = uint256(price) * (1 * 10 ** 10);
require(timestamp > nextFeeUpdate, "Fee update every 24 hrs");
uint256 _sellNftFeeEth;
if (_price > USD_PRICE_SELL) {
uint256 _p = _price / (USD_PRICE_SELL);
_sellNftFeeEth = uint256(1 * 10 ** 18) / (_p);
} else {
_sellNftFeeEth = USD_PRICE_SELL / (_price);
}
require(
owner() == msg.sender ||
(sellNftFeeEth / (2) < _sellNftFeeEth &&
sellNftFeeEth * (150) > _sellNftFeeEth),
"Fee swing too high"
);
sellNftFeeEth = _sellNftFeeEth;
if (_price > USD_PRICE_BUY) {
uint256 _p = _price / (USD_PRICE_BUY);
buyNftFeeEth = uint256(1 * 10 ** 18) / (_p);
} else {
buyNftFeeEth = USD_PRICE_BUY / (_price);
}
buyNftFeeJay = JAY.ETHtoJAY(buyNftFeeEth);
nextFeeUpdate = timestamp + (24 hours);
return (sellNftFeeEth, buyNftFeeEth, buyNftFeeJay, nextFeeUpdate);
}
function getLatestPrice() public view returns (int256) {
(, int256 price, , , ) = priceFeed.latestRoundData();
return price;
}
receive() external payable {}
function onERC1155Received(
address,
address,
uint256,
uint256,
bytes memory
) public virtual returns (bytes4) {
return this.onERC1155Received.selector;
}
function onERC721Received(
address,
address,
uint256,
bytes memory
) public virtual returns (bytes4) {
return this.onERC721Received.selector;
}
}