IUsdnProtocolVault

Interface for the vault layer of the USDN protocol.

Functions

usdnPrice

Calculates the predicted USDN token price based on the given asset price and timestamp.

The effects of the funding and the PnL of the long positions since the last contract state update are taken into account.

function usdnPrice(uint128 currentPrice, uint128 timestamp) external view returns (uint256 price_);

Parameters

Name	Type	Description
`currentPrice`	`uint128`	The current or predicted asset price.
`timestamp`	`uint128`	The timestamp corresponding to `currentPrice`.

Returns

Name	Type	Description
`price_`	`uint256`	The predicted USDN token price.

usdnPrice

Calculates the USDN token price based on the given asset price at the current timestamp.

The effects of the funding and the PnL of the long positions since the last contract state update are taken into account.

function usdnPrice(uint128 currentPrice) external view returns (uint256 price_);

Parameters

Name	Type	Description
`currentPrice`	`uint128`	The asset price at `block.timestamp`.

Returns

Name	Type	Description
`price_`	`uint256`	The calculated USDN token price.

vaultAssetAvailableWithFunding

Gets the amount of assets in the vault for the given asset price and timestamp.

The effects of the funding, the PnL of the long positions and the accumulated fees since the last contract state update are taken into account, but not liquidations. If the provided timestamp is older than the last state update, the function reverts with UsdnProtocolTimestampTooOld.

function vaultAssetAvailableWithFunding(uint128 currentPrice, uint128 timestamp)
    external
    view
    returns (uint256 available_);

Parameters

Name	Type	Description
`currentPrice`	`uint128`	The current or predicted asset price.
`timestamp`	`uint128`	The timestamp corresponding to `currentPrice` (must not be earlier than `_lastUpdateTimestamp`).

Returns

Name	Type	Description
`available_`	`uint256`	The available vault balance (cannot be less than 0).