// SPDX-License-Identifier: UNLICENSED

pragma solidity ^0.8.0;

/**
 * @title SOMA ERC721 Permit Upgradeable Contract.
 * @author SOMA.finance.
 * @notice Interface of the {ERC721PermitUpgradeable} contract.
 */
interface IERC721PermitUpgradeable {
    /**
     * @notice The permit typehash used in the permit signature.
     * @return The typehash for the permit.
     */
    function PERMIT_TYPEHASH() external pure returns (bytes32);

    /**
     * @notice The domain separator used in the permit signature.
     * @return The domain separator used in encoding of permit signature.
     */
    function DOMAIN_SEPARATOR() external view returns (bytes32);

    /**
     * @notice Approve of a specific token ID for spending by spender via signature.
     * @param spender The account that is being approved.
     * @param tokenId The ID of the token that is being approved for spending.
     * @param deadline The deadline timestamp by which the call must be mined for the approve to work.
     * @param v Must produce valid secp256k1 signature from the holder along with `r` and `s`.
     * @param r Must produce valid secp256k1 signature from the holder along with `v` and `s`.
     * @param s Must produce valid secp256k1 signature from the holder along with `r` and `v`.
     */
    function permit(address spender, uint256 tokenId, uint256 deadline, uint8 v, bytes32 r, bytes32 s)
        external
        payable;
}