bbbdca6950
* added icon for atom and tokenInfo data update * borrow page initial commit * feat: borrow funds to ca and wallet * close borrow module on tx success * feat: repay funds initial setup * repay funds action hook * repay slider. module state on borrow page component * styling: minor tweak to text colors * limit manual input on repay to max value * borrow funds component slider initial * style: max button typography * AssetRow extracted to separate file. organize imports * ContainerSecondary component added * loading indicator for pending actions * style: progress bar colors * tanstack table added * tanstack react-table dependency missing * table cleanup and layout adjustments * fix account stats formula and update market data to match spreadsheet * calculate max borrow amount hook * reset borrow and repay components on account change * max borrow amount decimals. memorized return * hook tanstack data with real data * redefine borrowedAssetsMap to map * update max borrow amount formulas * remove unnecessary table component. refactor borrow table
64 lines
2.2 KiB
TypeScript
64 lines
2.2 KiB
TypeScript
import { useMemo } from 'react'
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import BigNumber from 'bignumber.js'
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import useCreditManagerStore from 'stores/useCreditManagerStore'
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import { getTokenDecimals } from 'utils/tokens'
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import useCreditAccountPositions from './useCreditAccountPositions'
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import useMarkets from './useMarkets'
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import useTokenPrices from './useTokenPrices'
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const useCalculateMaxBorrowAmount = (denom: string, isUnderCollateralized: boolean) => {
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const selectedAccount = useCreditManagerStore((s) => s.selectedAccount)
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const { data: positionsData } = useCreditAccountPositions(selectedAccount ?? '')
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const { data: marketsData } = useMarkets()
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const { data: tokenPrices } = useTokenPrices()
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return useMemo(() => {
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if (!marketsData || !tokenPrices || !positionsData) return 0
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const getTokenTotalUSDValue = (amount: string, denom: string) => {
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// early return if prices are not fetched yet
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if (!tokenPrices) return 0
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return BigNumber(amount)
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.div(10 ** getTokenDecimals(denom))
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.times(tokenPrices[denom])
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.toNumber()
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}
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const totalWeightedPositions = positionsData?.coins.reduce((acc, coin) => {
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const tokenWeightedValue = BigNumber(getTokenTotalUSDValue(coin.amount, coin.denom)).times(
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Number(marketsData[coin.denom].max_loan_to_value)
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)
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return tokenWeightedValue.plus(acc).toNumber()
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}, 0)
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const totalLiabilitiesValue = positionsData?.debts.reduce((acc, coin) => {
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const tokenUSDValue = BigNumber(getTokenTotalUSDValue(coin.amount, coin.denom))
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return tokenUSDValue.plus(acc).toNumber()
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}, 0)
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const borrowTokenPrice = tokenPrices[denom]
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const tokenDecimals = getTokenDecimals(denom)
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if (isUnderCollateralized) {
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return BigNumber(totalLiabilitiesValue)
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.minus(totalWeightedPositions)
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.div(borrowTokenPrice * Number(marketsData[denom].max_loan_to_value) - borrowTokenPrice)
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.decimalPlaces(tokenDecimals)
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.toNumber()
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} else {
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return BigNumber(totalWeightedPositions)
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.minus(totalLiabilitiesValue)
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.div(borrowTokenPrice)
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.decimalPlaces(tokenDecimals)
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.toNumber()
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}
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}, [denom, isUnderCollateralized, marketsData, positionsData, tokenPrices])
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}
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export default useCalculateMaxBorrowAmount
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