IDelayedFeeCalculator

Interface for a contract that calculates fee inputs for a single-depositor vault

Functions

submitSnapshot

Submit a new snapshot for fee calculation

function submitSnapshot(address vault, uint160 averageValue, uint128 highestProfit, uint32 timestamp) external;

Parameters

Name	Type	Description
vault	address	The address of the vault
averageValue	uint160	The average value during the period since last snapshot to this snapshot timestamp
highestProfit	uint128	The highest profit achieved up to the snapshot timestamp
timestamp	uint32	The timestamp of the snapshot

accrueFees

Process fee accrual for a vault

function accrueFees(address vault) external returns (uint256 tvlFeesEarned, uint256 performanceFeesEarned);

Parameters

Name	Type	Description
vault	address	The address of the vault

Returns

Name	Type	Description
tvlFeesEarned	uint256	The earned TVL fees for the vault and the protocol
performanceFeesEarned	uint256	The earned performance fees for the vault and the protocol

vaultFeeState

The fee state of a vault

function vaultFeeState(address vault) external view returns (VaultSnapshot memory, VaultAccruals memory);

Parameters

Name	Type	Description
vault	address	The address of the vault

Returns

Name	Type	Description
<none>	VaultSnapshot	vaultSnapshotFeeState The snapshot fee state of the vault
<none>	VaultAccruals	baseVaultFeeState The base fee state of the vault

Events

SnapshotSubmitted

Emitted when a new snapshot of fee inputs is submitted for a vault

highestProfit is equivalent to a high water mark but could be applicable to a subset of the vault

event SnapshotSubmitted(address indexed vault, uint160 averageValue, uint128 highestProfit, uint32 timestamp);

Parameters

Name	Type	Description
vault	address	The vault address
averageValue	uint160	The average value of the vault during the period since last snapshot
highestProfit	uint128	The highest profit achieved during the period since last snapshot
timestamp	uint32	The timestamp of the snapshot

Errors

Aera__SnapshotTooOld

Thrown when a snapshot's timestamp is older than the last fee accrual

error Aera__SnapshotTooOld();

Aera__SnapshotInFuture

Thrown when a snapshot's timestamp is in the future

error Aera__SnapshotInFuture();

Aera__HighestProfitDecreased

Thrown when attempting to accrue fees with a highest profit that is less than the last highest profit

error Aera__HighestProfitDecreased();

Aera__DisputePeriodTooLong

Thrown when the dispute period is greater than the maximum allowed

error Aera__DisputePeriodTooLong();