IZoraAuctionHouse.sol

// SPDX-License-Identifier: Beta Software
pragma solidity ^0.8;

import "../../tokens/IERC721.sol";
import "../../tokens/IERC20.sol";

// Based on https://etherscan.io/address/0xe468ce99444174bd3bbbed09209577d25d1ad673#code
interface IZoraAuctionHouse {
    struct Auction {
        // ID for the ERC721 token
        uint256 tokenId;
        // Address for the ERC721 contract
        IERC721 tokenContract;
        // Whether or not the auction curator has approved the auction to start
        bool approved;
        // The current highest bid amount
        uint256 amount;
        // The length of time to run the auction for, after the first bid was made
        uint256 duration;
        // The time of the first bid
        uint256 firstBidTime;
        // The minimum price of the first bid
        uint256 reservePrice;
        // The sale percentage to send to the curator
        uint8 curatorFeePercentage;
        // The address that should receive the funds once the NFT is sold.
        address tokenOwner;
        // The address of the current highest bid
        address payable bidder;
        // The address of the auction's curator.
        // The curator can reject or approve an auction
        address payable curator;
        // The address of the ERC-20 currency to run the auction with.
        // If set to 0x0, the auction will be run in ETH
        IERC20 auctionCurrency;
    }

    function createAuction(
        uint256 tokenId,
        IERC721 tokenContract,
        uint256 duration,
        uint256 reservePrice,
        address payable curator,
        uint8 curatorFeePercentages,
        IERC20 auctionCurrency
    ) external returns (uint256);
    function createBid(uint256 auctionId, uint256 amount) external payable;
    function endAuction(uint256 auctionId) external;
    function cancelAuction(uint256 auctionId) external;
    function auctions(uint256 auctionId) external view returns(Auction memory auction);
    function timeBuffer() external view returns (uint256);
    function minBidIncrementPercentage() external view returns (uint8);
}