@sfpro/sdk/src/util.ts

TypeScript SDK for Superfluid Protocol - stream money every second

// TODO: add documentation

import type { TimeUnit } from "./constant.js"

export function calculateCurrentBalance({
	flowRate,
	balance,
	balanceTimestamp, // Unix timestamp
	currentTimestamp = Date.now(),
}: {
	flowRate: bigint
	balance: bigint
	balanceTimestamp: number
	currentTimestamp?: number
}) {
	const timeElapsed = currentTimestamp - balanceTimestamp
	const amountFlowed = BigInt(timeElapsed) * flowRate
	return balance + amountFlowed
}

export function calculateFlowratePerSecond({ amountWei, timeUnit }: { amountWei: bigint; timeUnit: TimeUnit }) {
	return amountWei / BigInt(timeUnit)
}