// SPDX-License-Identifier: MIT
pragma solidity >=0.7.6 <0.9;

import "./IVPToken.sol";
import "./token/interface/IICleanable.sol";

/**
 * @title Wrapped Native token
 * Accept native token deposits and mint ERC20 WNAT (wrapped native) tokens 1-1.
 */
interface IWNat is IVPToken, IICleanable {
    /**
     * Deposit Native and mint wNat ERC20.
     */
    function deposit() external payable;

    /**
     * Deposit Native from msg.sender and mints WNAT ERC20 to recipient address.
     * @param recipient An address to receive minted WNAT.
     */
    function depositTo(address recipient) external payable;

    /**
     * Withdraw Native and burn WNAT ERC20.
     * @param amount The amount to withdraw.
     */
    function withdraw(uint256 amount) external;

    /**
     * Withdraw WNAT from an owner and send native tokens to msg.sender given an allowance.
     * @param owner An address spending the Native tokens.
     * @param amount The amount to spend.
     *
     * Requirements:
     *
     * - `owner` must have a balance of at least `amount`.
     * - the caller must have allowance for `owners`'s tokens of at least
     * `amount`.
     */
    function withdrawFrom(address owner, uint256 amount) external;
}