Fixed Rate Reserves

import {
  KaminoManager,
  DEFAULT_RECENT_SLOT_DURATION_MS,
  PROGRAM_ID,
  MarketWithAddress,
} from '@kamino-finance/klend-sdk';
import { LendingMarket, Reserve } from '@kamino-finance/klend-sdk/dist/@codegen/klend/accounts';
import { address } from '@solana/kit';

// ... rpc setup, adminSigner ...

const kaminoManager = new KaminoManager(rpc, DEFAULT_RECENT_SLOT_DURATION_MS, PROGRAM_ID);

const marketState = await LendingMarket.fetch(rpc, marketAddress);
if (!marketState) throw new Error('Market not found');
const marketWithAddress: MarketWithAddress = { address: marketAddress, state: marketState };

const reserve = await Reserve.fetch(rpc, reserveAddress);
if (!reserve) throw new Error('Reserve not found');

const newConfig = { ...reserve.config };
newConfig.debtTermSeconds = 2_592_000n;            // 30 days
newConfig.debtMaturityTimestamp = 0n;              // 0 = per-borrow rolling term
newConfig.hostFixedInterestRateBps = 500;          // 5%
newConfig.earlyRepayRemainingInterestPct = 50;     // 50% penalty on remaining interest

const updateIxs = await kaminoManager.updateReserveIxs(
  adminSigner,
  marketWithAddress,
  reserveAddress,
  newConfig,
);
// submit each chunk in order

const newLendingMarket = { ...marketState };
newLendingMarket.fixedTermRolloverWindowDurationSeconds = 172_800n;     // 48 hours
newLendingMarket.openTermRolloverWindowDurationSeconds = 0n;
newLendingMarket.obligationBorrowMigrationToFixedExecutionEnabled = 0;
newLendingMarket.obligationBorrowRolloverConfigurationEnabled = 1;
newLendingMarket.minPartialRolloverValue = 100_000n;
newLendingMarket.termBasedFullLiquidationDurationSecs = 86_400n;        // 24h after maturity
newLendingMarket.matureReserveDebtLiquidationEnabled = 1;
newLendingMarket.obligationBorrowDebtTermLiquidationEnabled = 1;

const ixs = kaminoManager.updateLendingMarketIxs(adminSigner, marketWithAddress, newLendingMarket);
// submit each ix in order