/// @dev Returns whether the am-AMM is enabled for a given pool
function _amAmmEnabled(PoolId id) internal view virtual returns (bool);

/// @dev Validates a bid payload, e.g. ensure the swap fee is below a certain threshold
function _payloadIsValid(PoolId id, bytes7 payload) internal view virtual returns (bool);

/// @dev Burns bid tokens from address(this)
function _burnBidToken(PoolId id, uint256 amount) internal virtual;

/// @dev Transfers bid tokens from an address that's not address(this) to address(this)
function _pullBidToken(PoolId id, address from, uint256 amount) internal virtual;

/// @dev Transfers bid tokens from address(this) to an address that's not address(this)
function _pushBidToken(PoolId id, address to, uint256 amount) internal virtual;

/// @dev Transfers accrued fees from address(this)
function _transferFeeToken(Currency currency, address to, uint256 amount) internal virtual;

/// @dev Charges rent and updates the top and next bids for a given pool
function _updateAmAmmWrite(PoolId id) internal virtual returns (address manager, uint24 swapFee);

/// @dev View version of _updateAmAmmWrite()
function _updateAmAmm(PoolId id) internal view virtual returns (Bid memory topBid, Bid memory nextBid);

/// @dev Accrues swap fees to the manager
function _accrueFees(address manager, Currency currency, uint256 amount) internal virtual;

function K(PoolId) internal view virtual returns (uint40) {
    return 24;
}

function EPOCH_SIZE(PoolId) internal view virtual returns (uint256) {
    return 1 hours;
}

function MIN_BID_MULTIPLIER(PoolId) internal view virtual returns (uint256) {
    return 1.1e18;
}

/// @notice Places a bid to become the manager of a pool
/// @param id The pool id
/// @param manager The address of the manager
/// @param payload The payload specifying what parameters the manager wants, e.g. swap fee
/// @param rent The rent per epoch
/// @param deposit The deposit amount, must be a multiple of rent and cover rent for >=K epochs
function bid(PoolId id, address manager, bytes7 payload, uint128 rent, uint128 deposit) external;

/// @notice Adds deposit to the top bid. Only callable by topBids[id].manager.
/// @param id The pool id
/// @param amount The amount to deposit, must be a multiple of rent
function depositIntoTopBid(PoolId id, uint128 amount) external;

/// @notice Withdraws from the deposit of the top bid. Only callable by topBids[id].manager. Reverts if D_top / R_top < K.
/// @param id The pool id
/// @param amount The amount to withdraw, must be a multiple of rent and leave D_top / R_top >= K
/// @param recipient The address of the recipient
function withdrawFromTopBid(PoolId id, uint128 amount, address recipient) external;

/// @notice Adds deposit to the next bid. Only callable by nextBids[id].manager.
/// @param id The pool id
/// @param amount The amount to deposit, must be a multiple of rent
function depositIntoNextBid(PoolId id, uint128 amount) external;

/// @notice Withdraws from the deposit of the next bid. Only callable by nextBids[id].manager. Reverts if D_next / R_next < K.
/// @param id The pool id
/// @param amount The amount to withdraw, must be a multiple of rent and leave D_next / R_next >= K
/// @param recipient The address of the recipient
function withdrawFromNextBid(PoolId id, uint128 amount, address recipient) external;

/// @notice Cancels the next bid. Only callable by nextBids[id].manager. Reverts if D_top / R_top < K.
/// @param id The pool id
/// @param recipient The address of the recipient
/// @return refund The amount of refund claimed
function cancelNextBid(PoolId id, address recipient) external returns (uint256 refund);

/// @notice Claims the refundable deposit of a pool owed to msg.sender.
/// @param id The pool id
/// @param recipient The address of the manager
/// @return refund The amount of refund claimed
function claimRefund(PoolId id, address recipient) external returns (uint256 refund);

/// @notice Claims the accrued fees of msg.sender.
/// @param currency The currency of the fees
/// @param recipient The address of the recipient
/// @return fees The amount of fees claimed
function claimFees(Currency currency, address recipient) external returns (uint256 fees);

/// @notice Sets the payload of a pool. Only callable by the manager of either the top bid or the next bid.
/// @param id The pool id
/// @param payload The payload specifying e.g. the swap fee
/// @param topBid True if the top bid manager is setting the fee, false if the next bid manager is setting the fee
function setBidPayload(PoolId id, bytes7 payload, bool topBid) external;