65 lines
1.8 KiB
TypeScript
65 lines
1.8 KiB
TypeScript
import { COLLATERAL_FEE_KEY } from 'utils/constants'
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import useBanksWithBalances from './useBanksWithBalances'
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import useLocalStorageState from './useLocalStorageState'
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import { useMemo } from 'react'
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import useMangoAccount from './useMangoAccount'
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const useCollateralFeePopupConditions = () => {
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const [wasModalOpen, setWasModalOpen] = useLocalStorageState(
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COLLATERAL_FEE_KEY,
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false,
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)
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const banks = useBanksWithBalances('balance')
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const marginPositionBalanceWithBanks = banks.filter(
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(x) => x.balance < 0 && Math.abs(x.balance) * x.bank.uiPrice >= 100,
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)
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const collateralFeeBanks = banks.filter(
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(x) => x.balance > 0 && x.bank.collateralFeePerDay > 0,
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)
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// Use useMemo to recalculate the LTV ratio only when the list of banks changes
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const ltvRatio = useMemo(() => {
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let totalWeightedAssets = 0
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let totalWeightedLiabilities = 0
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banks.forEach(({ balance, bank }) => {
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const weight =
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balance > 0
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? Number(bank.maintAssetWeight)
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: Number(bank.maintLiabWeight)
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const value = Math.abs(balance) * bank.uiPrice * weight
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if (balance > 0) {
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totalWeightedAssets += value
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} else if (balance < 0) {
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totalWeightedLiabilities += value
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}
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})
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return totalWeightedAssets > 0
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? totalWeightedLiabilities / totalWeightedAssets
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: 0
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}, [banks])
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const showCollateralFeeWarning =
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!!marginPositionBalanceWithBanks.length &&
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!!collateralFeeBanks.length &&
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!wasModalOpen
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const isCharged =
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!!marginPositionBalanceWithBanks.length && !!collateralFeeBanks.length
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return {
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showCollateralFeeWarning,
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setWasModalOpen,
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marginPositionBalanceWithBanks,
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collateralFeeBanks,
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ltvRatio,
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isCharged,
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}
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}
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export default useCollateralFeePopupConditions
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