import { MangoAccount, Serum3Market } from '@blockworks-foundation/mango-v4' import mangoStore from '@store/mangoStore' import { useMemo } from 'react' import { GenericMarket } from 'types' export const useSpotMarketMax = ( mangoAccount: MangoAccount | undefined, selectedMarket: GenericMarket | undefined, side: string, useMargin: boolean ) => { const max = useMemo(() => { const group = mangoStore.getState().group if (!mangoAccount || !group || !selectedMarket) return 100 if (!(selectedMarket instanceof Serum3Market)) return 100 let leverageMax = 0 let spotMax = 0 try { if (side === 'buy') { leverageMax = mangoAccount.getMaxQuoteForSerum3BidUi( group, selectedMarket.serumMarketExternal ) spotMax = mangoAccount.getTokenBalanceUi( group.getFirstBankByTokenIndex(selectedMarket.quoteTokenIndex) ) } else { leverageMax = mangoAccount.getMaxBaseForSerum3AskUi( group, selectedMarket.serumMarketExternal ) spotMax = mangoAccount.getTokenBalanceUi( group.getFirstBankByTokenIndex(selectedMarket.baseTokenIndex) ) } return useMargin ? leverageMax : Math.max(spotMax, 0) } catch (e) { console.error('Error calculating max leverage: spot btn group: ', e) return 0 } }, [side, selectedMarket, mangoAccount, useMargin]) return max }