78 lines
2.4 KiB
TypeScript
78 lines
2.4 KiB
TypeScript
import { useMemo } from 'react'
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import useStakeRates from './useStakeRates'
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import useMangoGroup from './useMangoGroup'
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// import mangoStore from '@store/mangoStore'
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import useLeverageMax from './useLeverageMax'
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// const set = mangoStore.getState().set
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export default function useBankRates(selectedToken: string, leverage: number) {
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const { data: stakeRates } = useStakeRates()
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const { group } = useMangoGroup()
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// const estimatedMaxAPY = mangoStore((s) => s.estimatedMaxAPY.current)
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const leverageMax = useLeverageMax(selectedToken)
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const stakeBank = useMemo(() => {
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return group?.banksMapByName.get(selectedToken)?.[0]
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}, [selectedToken, group])
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const borrowBank = useMemo(() => {
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return group?.banksMapByName.get('USDC')?.[0]
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}, [group])
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const stakeBankDepositRate = useMemo(() => {
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return stakeBank ? stakeBank.getDepositRateUi() : 0
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}, [stakeBank])
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const borrowBankBorrowRate = useMemo(() => {
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return borrowBank ? borrowBank.getBorrowRateUi() : 0
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}, [borrowBank])
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const borrowBankStakeRate = useMemo(() => {
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return stakeRates ? stakeRates[selectedToken.toLowerCase()] * 100 : 0
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}, [stakeRates, selectedToken])
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const leveragedAPY = useMemo(() => {
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return borrowBankStakeRate ? borrowBankStakeRate * leverage : 0
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}, [borrowBankStakeRate, leverage])
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const collateralFeeAPY = useMemo(() => {
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if (!stakeBank) return 0
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const borrowedAmount = leverage - 1
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const assetsCovered = borrowedAmount / Number(stakeBank?.maintAssetWeight)
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return stakeBank?.collateralFeePerDay * 365 * 100 * assetsCovered
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}, [stakeBank, leverage])
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const estimatedNetAPY = useMemo(() => {
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return (
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borrowBankStakeRate * leverage - borrowBankBorrowRate * (leverage - 1) - collateralFeeAPY
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)
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}, [borrowBankStakeRate, leverage, borrowBankBorrowRate, collateralFeeAPY])
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// useEffect(() => {
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// set((s) => {
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// s.estimatedMaxAPY.current =
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// borrowBankStakeRate * leverageMax -
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// borrowBankBorrowRate * (leverageMax - 1)
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// })
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// }, [borrowBankStakeRate, borrowBankBorrowRate, leverageMax])
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const estimatedMaxAPY = useMemo(() => {
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return (
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borrowBankStakeRate * leverageMax - borrowBankBorrowRate * (leverageMax - 1)
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)
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}, [borrowBankStakeRate, borrowBankBorrowRate, leverageMax])
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return {
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stakeBankDepositRate,
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borrowBankBorrowRate,
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borrowBankStakeRate,
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leveragedAPY,
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estimatedNetAPY,
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estimatedMaxAPY,
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collateralFeeAPY
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}
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}
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