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CentrifugeJS: Loan present value #1578

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Sep 12, 2023
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CentrifugeJS: Loan present value #1578

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18 changes: 18 additions & 0 deletions centrifuge-js/src/modules/pools.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -2361,6 +2361,7 @@ export function getPoolsModule(inst: Centrifuge) {
api.query.interestAccrual.rates(),
api.query.interestAccrual.lastUpdated(),
api.query.ormlAssetRegistry.metadata((poolValue.toHuman() as any).currency),
api.call.loansApi.portfolio(poolId), // TODO: remove loans.activeLoans and use values from this runtime call
]).pipe(take(1))
}),
map(
Expand All @@ -2372,6 +2373,7 @@ export function getPoolsModule(inst: Centrifuge) {
rateValues,
interestLastUpdated,
rawCurrency,
rawPortfolio,
]) => {
const currency = rawCurrency.toHuman() as AssetCurrencyData
const rates = rateValues.toPrimitive() as InterestAccrual[]
Expand All @@ -2391,6 +2393,20 @@ export function getPoolsModule(inst: Centrifuge) {
}
})

const activeLoansPortfolio: Record<
string,
{
presentValue: CurrencyBalance
}
> = {}

;(rawPortfolio as any).forEach(([key, value]: [Codec, Codec]) => {
const data = value.toPrimitive() as any
activeLoansPortfolio[String(key.toPrimitive())] = {
presentValue: new CurrencyBalance(data.presentValue, currency.decimals),
}
})

function getSharedLoanInfo(loan: CreatedLoanData | ActiveLoanData | ClosedLoanData) {
const info = 'info' in loan ? loan.info : loan
const [collectionId, nftId] = info.collateral
Expand Down Expand Up @@ -2490,6 +2506,7 @@ export function getPoolsModule(inst: Centrifuge) {
new Rate(rate.interestRatePerSec).toApr().toDecimalPlaces(4).toString() ===
sharedInfo.pricing.interestRate.toDecimal().toString()
)
const portfolio = activeLoansPortfolio[loanId.toString()]
const penaltyRate =
'external' in loan.pricing
? loan.pricing.external.interest.penalty
Expand Down Expand Up @@ -2562,6 +2579,7 @@ export function getPoolsModule(inst: Centrifuge) {
normalizedDebt: new CurrencyBalance(normalizedDebt, currency.decimals),
outstandingPrincipal,
outstandingInterest,
presentValue: portfolio.presentValue,
}
}
)
Expand Down
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