@kamino-finance/klend-sdk
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Typescript SDK for interacting with the Kamino Lending (klend) protocol
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text/typescript
import { LAMPORTS_PER_SOL, PublicKey, TransactionInstruction } from '@solana/web3.js';
import Decimal from 'decimal.js';
import {
KaminoAction,
KaminoMarket,
KaminoObligation,
KaminoReserve,
lamportsToNumberDecimal as fromLamports,
getTokenIdsForScopeRefresh,
isKaminoObligation,
toJson,
} from '../classes';
import { getFlashLoanInstructions } from './instructions';
import { numberToLamportsDecimal as toLamports } from '../classes';
import {
LeverageObligation,
MultiplyObligation,
ObligationType,
ObligationTypeTag,
PublicKeySet,
SOL_DECIMALS,
ScopePriceRefreshConfig,
U64_MAX,
createAtasIdempotent,
getAssociatedTokenAddress,
getComputeBudgetAndPriorityFeeIxs,
getTransferWsolIxs,
getLookupTableAccount,
removeBudgetIxs,
uniqueAccountsWithProgramIds,
} from '../utils';
import {
adjustDepositLeverageCalcs,
adjustWithdrawLeverageCalcs,
calcAdjustAmounts,
depositLeverageCalcs,
depositLeverageKtokenCalcs,
withdrawLeverageCalcs,
} from './calcs';
import {
NATIVE_MINT,
TOKEN_PROGRAM_ID,
createCloseAccountInstruction,
getAssociatedTokenAddressSync,
} from '@solana/spl-token';
import { Kamino, StrategyWithAddress } from '@kamino-finance/kliquidity-sdk';
import { getExpectedTokenBalanceAfterBorrow, getKtokenToTokenSwapper, getTokenToKtokenSwapper } from './utils';
import { FullBPS } from '@kamino-finance/kliquidity-sdk/dist/utils/CreationParameters';
import {
AdjustLeverageCalcsResult,
AdjustLeverageInitialInputs,
AdjustLeverageIxsResponse,
AdjustLeverageProps,
AdjustLeverageSwapInputsProps,
DepositLeverageCalcsResult,
DepositLeverageInitialInputs,
DepositWithLeverageProps,
DepositWithLeverageSwapInputsProps,
DepositLeverageIxsResponse,
PriceAinBProvider,
SwapInputs,
SwapIxs,
SwapIxsProvider,
WithdrawLeverageCalcsResult,
WithdrawLeverageInitialInputs,
WithdrawLeverageIxsResponse,
WithdrawWithLeverageProps,
WithdrawWithLeverageSwapInputsProps,
LeverageIxsOutput,
FlashLoanInfo,
} from './types';
export async function getDepositWithLeverageSwapInputs<QuoteResponse>({
owner,
kaminoMarket,
debtTokenMint,
collTokenMint,
depositAmount,
priceDebtToColl,
slippagePct,
obligation,
referrer,
currentSlot,
targetLeverage,
selectedTokenMint,
kamino,
obligationTypeTagOverride,
scopeRefreshConfig,
budgetAndPriorityFeeIxs,
quoteBufferBps,
priceAinB,
isKtoken,
quoter,
useV2Ixs,
elevationGroupOverride,
}: DepositWithLeverageSwapInputsProps<QuoteResponse>): Promise<{
flashLoanInfo: FlashLoanInfo;
swapInputs: SwapInputs;
initialInputs: DepositLeverageInitialInputs<QuoteResponse>;
}> {
const collReserve = kaminoMarket.getReserveByMint(collTokenMint)!;
const debtReserve = kaminoMarket.getReserveByMint(debtTokenMint)!;
const solTokenReserve = kaminoMarket.getReserveByMint(NATIVE_MINT);
const flashLoanFee = collReserve.getFlashLoanFee() || new Decimal(0);
const selectedTokenIsCollToken = selectedTokenMint.equals(collTokenMint);
const depositTokenIsSol = !solTokenReserve ? false : selectedTokenMint.equals(solTokenReserve!.getLiquidityMint());
const collIsKtoken = await isKtoken(collTokenMint);
const strategy = collIsKtoken ? (await kamino!.getStrategyByKTokenMint(collTokenMint))! : undefined;
const calcs = await getDepositWithLeverageCalcs(
depositAmount,
selectedTokenIsCollToken,
collIsKtoken,
depositTokenIsSol,
priceDebtToColl,
targetLeverage,
slippagePct,
flashLoanFee,
kamino,
strategy,
debtTokenMint,
priceAinB,
debtReserve!
);
console.log('Ops Calcs', toJson(calcs));
const obligationType = checkObligationType(obligationTypeTagOverride, collTokenMint, debtTokenMint, kaminoMarket);
// Build the repay & withdraw collateral tx to get the number of accounts
const klendIxs: LeverageIxsOutput = await buildDepositWithLeverageIxs(
kaminoMarket,
debtReserve,
collReserve,
owner,
obligation ? obligation : obligationType,
referrer,
currentSlot,
depositTokenIsSol,
scopeRefreshConfig,
calcs,
budgetAndPriorityFeeIxs,
{
preActionIxs: [],
swapIxs: [],
lookupTables: [],
quote: {
priceAInB: new Decimal(0), // not used
quoteResponse: undefined,
},
},
strategy,
collIsKtoken,
useV2Ixs,
elevationGroupOverride
);
const uniqueKlendAccounts = uniqueAccountsWithProgramIds(klendIxs.instructions);
const swapInputAmount = toLamports(
!collIsKtoken ? calcs.swapDebtTokenIn : calcs.singleSidedDepositKtokenOnly,
debtReserve.stats.decimals
).ceil();
const swapInputsForQuote: SwapInputs = {
inputAmountLamports: swapInputAmount.mul(new Decimal(1).add(quoteBufferBps.div(FullBPS))),
inputMint: debtTokenMint,
outputMint: collTokenMint,
amountDebtAtaBalance: new Decimal(0), // Only needed for ktokens swaps
};
const swapQuote = await quoter(swapInputsForQuote, uniqueKlendAccounts);
const quotePriceCalcs = await getDepositWithLeverageCalcs(
depositAmount,
selectedTokenIsCollToken,
collIsKtoken,
depositTokenIsSol,
swapQuote.priceAInB,
targetLeverage,
slippagePct,
flashLoanFee,
kamino,
strategy,
debtTokenMint,
priceAinB,
debtReserve!
);
const swapInputAmountQuotePrice = toLamports(
!collIsKtoken ? quotePriceCalcs.swapDebtTokenIn : quotePriceCalcs.singleSidedDepositKtokenOnly,
debtReserve.stats.decimals
).ceil();
let expectedDebtTokenAtaBalance = new Decimal(0);
if (collIsKtoken) {
let futureBalanceInAta = new Decimal(0);
if (debtTokenMint.equals(NATIVE_MINT)) {
futureBalanceInAta = futureBalanceInAta.add(
!collIsKtoken ? quotePriceCalcs.initDepositInSol : quotePriceCalcs.initDepositInSol
);
}
futureBalanceInAta = futureBalanceInAta.add(
!collIsKtoken ? quotePriceCalcs.debtTokenToBorrow : quotePriceCalcs.flashBorrowInDebtTokenKtokenOnly
);
expectedDebtTokenAtaBalance = await getExpectedTokenBalanceAfterBorrow(
kaminoMarket.getConnection(),
debtTokenMint,
owner,
toLamports(futureBalanceInAta.toDecimalPlaces(debtReserve.stats.decimals), debtReserve.stats.decimals),
debtReserve.state.liquidity.mintDecimals.toNumber()
);
}
return {
swapInputs: {
inputAmountLamports: swapInputAmountQuotePrice,
minOutAmountLamports: toLamports(
!collIsKtoken ? quotePriceCalcs.flashBorrowInCollToken : quotePriceCalcs.flashBorrowInDebtTokenKtokenOnly,
!collIsKtoken ? collReserve.stats.decimals : debtReserve.stats.decimals
),
inputMint: debtTokenMint,
outputMint: collTokenMint,
amountDebtAtaBalance: expectedDebtTokenAtaBalance,
},
flashLoanInfo: klendIxs.flashLoanInfo,
initialInputs: {
calcs: quotePriceCalcs,
swapQuote,
currentSlot,
collIsKtoken,
strategy,
obligation: obligation ? obligation : obligationType,
klendAccounts: uniqueKlendAccounts,
},
};
}
async function getDepositWithLeverageCalcs(
depositAmount: Decimal,
selectedTokenIsCollToken: boolean,
collIsKtoken: boolean,
depositTokenIsSol: boolean,
priceDebtToColl: Decimal,
targetLeverage: Decimal,
slippagePct: Decimal,
flashLoanFee: Decimal,
kamino: Kamino | undefined,
strategy: StrategyWithAddress | undefined,
debtTokenMint: PublicKey,
priceAinB: PriceAinBProvider,
debtReserve: KaminoReserve
): Promise<DepositLeverageCalcsResult> {
let calcs: DepositLeverageCalcsResult;
if (!collIsKtoken) {
calcs = depositLeverageCalcs({
depositAmount: depositAmount,
depositTokenIsCollToken: selectedTokenIsCollToken,
depositTokenIsSol,
priceDebtToColl,
targetLeverage,
slippagePct,
flashLoanFee,
});
} else {
calcs = await depositLeverageKtokenCalcs({
kamino: kamino!,
strategy: strategy!,
debtTokenMint,
depositAmount: depositAmount,
depositTokenIsCollToken: selectedTokenIsCollToken,
depositTokenIsSol,
priceDebtToColl,
targetLeverage,
slippagePct,
flashLoanFee,
priceAinB,
});
// Rounding to exact number of decimals so this value is passed through in all calcs without rounding inconsistencies
calcs.flashBorrowInDebtTokenKtokenOnly = calcs.flashBorrowInDebtTokenKtokenOnly.toDecimalPlaces(
debtReserve!.state.liquidity.mintDecimals.toNumber()!,
Decimal.ROUND_CEIL
);
calcs.debtTokenToBorrow = calcs.debtTokenToBorrow.toDecimalPlaces(
debtReserve!.state.liquidity.mintDecimals.toNumber()!,
Decimal.ROUND_CEIL
);
calcs.singleSidedDepositKtokenOnly = calcs.singleSidedDepositKtokenOnly.toDecimalPlaces(
debtReserve!.state.liquidity.mintDecimals.toNumber()!,
Decimal.ROUND_CEIL
);
}
return calcs;
}
export async function getDepositWithLeverageIxs<QuoteResponse>({
owner,
kaminoMarket,
debtTokenMint,
collTokenMint,
depositAmount,
priceDebtToColl,
slippagePct,
obligation,
referrer,
currentSlot,
targetLeverage,
selectedTokenMint,
kamino,
obligationTypeTagOverride,
scopeRefreshConfig,
budgetAndPriorityFeeIxs,
quoteBufferBps,
priceAinB,
isKtoken,
quoter,
swapper,
elevationGroupOverride,
useV2Ixs,
}: DepositWithLeverageProps<QuoteResponse>): Promise<Array<DepositLeverageIxsResponse<QuoteResponse>>> {
const { swapInputs, initialInputs } = await getDepositWithLeverageSwapInputs({
owner,
kaminoMarket,
debtTokenMint,
collTokenMint,
depositAmount,
priceDebtToColl,
slippagePct,
obligation,
referrer,
currentSlot,
targetLeverage,
selectedTokenMint,
kamino,
obligationTypeTagOverride,
scopeRefreshConfig,
budgetAndPriorityFeeIxs,
quoteBufferBps,
priceAinB,
isKtoken,
quoter,
useV2Ixs,
});
let depositSwapper: SwapIxsProvider<QuoteResponse>;
if (!initialInputs.collIsKtoken) {
depositSwapper = swapper;
} else {
if (kamino === undefined) {
throw Error('Ktoken use as collateral for leverage without Kamino instance');
}
depositSwapper = await getTokenToKtokenSwapper(kaminoMarket, kamino, owner, slippagePct, swapper, priceAinB, false);
}
const swapsArray = await depositSwapper(swapInputs, initialInputs.klendAccounts, initialInputs.swapQuote);
if (initialInputs.collIsKtoken) {
if (initialInputs.strategy!.strategy.strategyLookupTable) {
const strategyLut = await getLookupTableAccount(
kaminoMarket.getConnection(),
initialInputs.strategy!.strategy.strategyLookupTable!
);
swapsArray.forEach((swap) => {
swap.lookupTables.push(strategyLut!);
});
} else {
console.log('Strategy lookup table not found');
}
}
const collReserve = kaminoMarket.getReserveByMint(collTokenMint);
const debtReserve = kaminoMarket.getReserveByMint(debtTokenMint);
const solTokenReserve = kaminoMarket.getReserveByMint(NATIVE_MINT);
const depositTokenIsSol = !solTokenReserve ? false : selectedTokenMint.equals(solTokenReserve!.getLiquidityMint());
return Promise.all(
swapsArray.map(async (swap) => {
const ixs: LeverageIxsOutput = await buildDepositWithLeverageIxs(
kaminoMarket,
debtReserve!,
collReserve!,
owner,
initialInputs.obligation,
referrer,
currentSlot,
depositTokenIsSol,
scopeRefreshConfig,
initialInputs.calcs,
budgetAndPriorityFeeIxs,
{
preActionIxs: [],
swapIxs: swap.swapIxs,
lookupTables: swap.lookupTables,
quote: swap.quote,
},
initialInputs.strategy,
initialInputs.collIsKtoken,
useV2Ixs,
elevationGroupOverride
);
return {
ixs: ixs.instructions,
flashLoanInfo: ixs.flashLoanInfo,
lookupTables: swap.lookupTables,
swapInputs,
initialInputs,
quote: swap.quote.quoteResponse,
};
})
);
}
async function buildDepositWithLeverageIxs<QuoteResponse>(
market: KaminoMarket,
debtReserve: KaminoReserve,
collReserve: KaminoReserve,
owner: PublicKey,
obligation: KaminoObligation | ObligationType | undefined,
referrer: PublicKey,
currentSlot: number,
depositTokenIsSol: boolean,
scopeRefreshConfig: ScopePriceRefreshConfig | undefined,
calcs: DepositLeverageCalcsResult,
budgetAndPriorityFeeIxs: TransactionInstruction[] | undefined,
swapQuoteIxs: SwapIxs<QuoteResponse>,
strategy: StrategyWithAddress | undefined,
collIsKtoken: boolean,
useV2Ixs: boolean,
elevationGroupOverride?: number
): Promise<LeverageIxsOutput> {
const collTokenMint = collReserve.getLiquidityMint();
const debtTokenMint = debtReserve.getLiquidityMint();
const collTokenAta = getAssociatedTokenAddressSync(
collTokenMint,
owner,
false,
collReserve.getLiquidityTokenProgram()
);
const debtTokenAta = getAssociatedTokenAddressSync(
debtTokenMint,
owner,
false,
debtReserve.getLiquidityTokenProgram()
);
// 1. Create atas & budget ixs
const { budgetIxs, createAtasIxs, scopeRefreshIx } = await getSetupIxs(
owner,
market,
obligation,
collTokenMint,
collReserve,
collIsKtoken,
debtTokenMint,
debtReserve,
strategy,
scopeRefreshConfig,
budgetAndPriorityFeeIxs
);
const fillWsolAtaIxs: TransactionInstruction[] = [];
if (depositTokenIsSol) {
fillWsolAtaIxs.push(
...getTransferWsolIxs(
owner,
getAssociatedTokenAddressSync(NATIVE_MINT, owner),
toLamports(calcs.initDepositInSol, SOL_DECIMALS).ceil()
)
);
}
// 2. Flash borrow & repay the collateral amount needed for given leverage
// if user deposits coll, then we borrow the diff, else we borrow the entire amount
const { flashBorrowIx, flashRepayIx } = getFlashLoanInstructions({
borrowIxIndex:
budgetIxs.length + createAtasIxs.length + fillWsolAtaIxs.length + (scopeRefreshIx.length > 0 ? 1 : 0),
walletPublicKey: owner,
lendingMarketAuthority: market.getLendingMarketAuthority(),
lendingMarketAddress: market.getAddress(),
reserve: !collIsKtoken ? collReserve : debtReserve,
amountLamports: toLamports(
!collIsKtoken ? calcs.flashBorrowInCollToken : calcs.flashBorrowInDebtTokenKtokenOnly,
!collIsKtoken ? collReserve.stats.decimals : debtReserve.stats.decimals
),
destinationAta: !collIsKtoken ? collTokenAta : debtTokenAta,
// TODO(referrals): once we support referrals, we will have to replace the placeholder args below:
referrerAccount: market.programId,
referrerTokenState: market.programId,
programId: market.programId,
});
// 3. Deposit initial tokens + borrowed tokens into reserve
const kaminoDepositAndBorrowAction = await KaminoAction.buildDepositAndBorrowTxns(
market,
toLamports(!collIsKtoken ? calcs.collTokenToDeposit : calcs.collTokenToDeposit, collReserve.stats.decimals)
.floor()
.toString(),
collTokenMint,
toLamports(!collIsKtoken ? calcs.debtTokenToBorrow : calcs.debtTokenToBorrow, debtReserve.stats.decimals)
.ceil()
.toString(),
debtTokenMint,
owner,
obligation!,
useV2Ixs,
undefined,
0,
false,
elevationGroupOverride === 0 ? false : true, // emode
{ skipInitialization: true, skipLutCreation: true }, // to be checked and created in a setup tx in the UI
referrer,
currentSlot
);
// 4. Swap
const { swapIxs } = swapQuoteIxs;
const swapInstructions = removeBudgetIxs(swapIxs);
const flashBorrowReserve = !collIsKtoken ? collReserve : debtReserve;
const flashLoanInfo = {
flashBorrowReserve: flashBorrowReserve.address,
flashLoanFee: flashBorrowReserve.getFlashLoanFee(),
};
return {
flashLoanInfo,
instructions: [
...scopeRefreshIx,
...budgetIxs,
...createAtasIxs,
...fillWsolAtaIxs,
...[flashBorrowIx],
...(collIsKtoken ? swapInstructions : []),
...KaminoAction.actionToIxs(kaminoDepositAndBorrowAction),
...(collIsKtoken ? [] : swapInstructions),
...[flashRepayIx],
],
};
}
export async function getWithdrawWithLeverageSwapInputs<QuoteResponse>({
owner,
kaminoMarket,
debtTokenMint,
collTokenMint,
deposited,
borrowed,
obligation,
referrer,
currentSlot,
withdrawAmount,
priceCollToDebt,
slippagePct,
isClosingPosition,
selectedTokenMint,
budgetAndPriorityFeeIxs,
kamino,
scopeRefreshConfig,
quoteBufferBps,
isKtoken,
quoter,
useV2Ixs,
}: WithdrawWithLeverageSwapInputsProps<QuoteResponse>): Promise<{
swapInputs: SwapInputs;
flashLoanInfo: FlashLoanInfo;
initialInputs: WithdrawLeverageInitialInputs<QuoteResponse>;
}> {
const collReserve = kaminoMarket.getReserveByMint(collTokenMint);
const debtReserve = kaminoMarket.getReserveByMint(debtTokenMint);
const flashLoanFee = debtReserve!.getFlashLoanFee() || new Decimal(0);
const selectedTokenIsCollToken = selectedTokenMint.equals(collTokenMint);
const collIsKtoken = await isKtoken(collTokenMint);
const strategy = collIsKtoken ? (await kamino!.getStrategyByKTokenMint(collTokenMint))! : undefined;
const inputTokenIsSol = selectedTokenMint.equals(NATIVE_MINT);
const calcs = withdrawLeverageCalcs(
kaminoMarket,
collReserve!,
debtReserve!,
priceCollToDebt,
withdrawAmount,
deposited,
borrowed,
currentSlot,
isClosingPosition,
selectedTokenIsCollToken,
selectedTokenMint,
obligation,
flashLoanFee,
slippagePct
);
const klendIxs = await buildWithdrawWithLeverageIxs(
kaminoMarket,
debtReserve!,
collReserve!,
owner,
obligation,
referrer,
currentSlot,
isClosingPosition,
inputTokenIsSol,
scopeRefreshConfig,
calcs,
budgetAndPriorityFeeIxs,
{
preActionIxs: [],
swapIxs: [],
lookupTables: [],
quote: {
priceAInB: new Decimal(0), // not used
quoteResponse: undefined,
},
},
strategy,
collIsKtoken,
useV2Ixs
);
const uniqueKlendAccounts = uniqueAccountsWithProgramIds(klendIxs.instructions);
const swapInputAmount = toLamports(calcs.collTokenSwapIn, collReserve!.getMintDecimals()).ceil();
const swapInputsForQuote: SwapInputs = {
inputAmountLamports: swapInputAmount.mul(new Decimal(1).add(quoteBufferBps.div(FullBPS))),
inputMint: collTokenMint,
outputMint: debtTokenMint,
amountDebtAtaBalance: undefined, // Only needed for ktokens deposits
};
const swapQuote = await quoter(swapInputsForQuote, uniqueKlendAccounts);
const calcsQuotePrice = withdrawLeverageCalcs(
kaminoMarket,
collReserve!,
debtReserve!,
!collIsKtoken ? swapQuote.priceAInB : priceCollToDebt,
withdrawAmount,
deposited,
borrowed,
currentSlot,
isClosingPosition,
selectedTokenIsCollToken,
selectedTokenMint,
obligation,
flashLoanFee,
slippagePct
);
const swapInputAmountQuotePrice = toLamports(calcsQuotePrice.collTokenSwapIn, collReserve!.getMintDecimals()).ceil();
return {
swapInputs: {
inputAmountLamports: swapInputAmountQuotePrice,
minOutAmountLamports: calcsQuotePrice.repayAmount,
inputMint: collTokenMint,
outputMint: debtTokenMint,
amountDebtAtaBalance: new Decimal(0), // Only needed for ktokens deposits
},
flashLoanInfo: klendIxs.flashLoanInfo,
initialInputs: {
calcs: calcsQuotePrice,
swapQuote,
currentSlot,
collIsKtoken,
strategy,
obligation,
klendAccounts: uniqueKlendAccounts,
},
};
}
export async function getWithdrawWithLeverageIxs<QuoteResponse>({
owner,
kaminoMarket,
debtTokenMint,
collTokenMint,
obligation,
deposited,
borrowed,
referrer,
currentSlot,
withdrawAmount,
priceCollToDebt,
slippagePct,
isClosingPosition,
selectedTokenMint,
budgetAndPriorityFeeIxs,
kamino,
scopeRefreshConfig,
quoteBufferBps,
isKtoken,
quoter,
swapper,
useV2Ixs,
}: WithdrawWithLeverageProps<QuoteResponse>): Promise<Array<WithdrawLeverageIxsResponse<QuoteResponse>>> {
const collReserve = kaminoMarket.getReserveByMint(collTokenMint);
const debtReserve = kaminoMarket.getReserveByMint(debtTokenMint);
const inputTokenIsSol = selectedTokenMint.equals(NATIVE_MINT);
const { swapInputs, initialInputs } = await getWithdrawWithLeverageSwapInputs({
owner,
kaminoMarket,
debtTokenMint,
collTokenMint,
deposited,
borrowed,
obligation,
referrer,
currentSlot,
withdrawAmount,
priceCollToDebt,
slippagePct,
isClosingPosition,
selectedTokenMint,
budgetAndPriorityFeeIxs,
kamino,
scopeRefreshConfig,
quoteBufferBps,
isKtoken,
quoter,
useV2Ixs,
});
let withdrawSwapper: SwapIxsProvider<QuoteResponse>;
if (initialInputs.collIsKtoken) {
if (kamino === undefined) {
throw Error('Ktoken use as collateral for leverage without Kamino instance');
}
withdrawSwapper = await getKtokenToTokenSwapper(kaminoMarket, kamino, owner, swapper);
} else {
withdrawSwapper = swapper;
}
const swapsArray = await withdrawSwapper(swapInputs, initialInputs.klendAccounts, initialInputs.swapQuote);
if (initialInputs.collIsKtoken) {
if (initialInputs.strategy!.strategy.strategyLookupTable) {
const strategyLut = await getLookupTableAccount(
kaminoMarket.getConnection(),
initialInputs.strategy!.strategy.strategyLookupTable!
);
swapsArray.forEach((swap) => {
swap.lookupTables.push(strategyLut!);
});
} else {
console.log('Strategy lookup table not found');
}
}
return Promise.all(
swapsArray.map(async (swap) => {
const ixs: LeverageIxsOutput = await buildWithdrawWithLeverageIxs<QuoteResponse>(
kaminoMarket,
debtReserve!,
collReserve!,
owner,
obligation,
referrer,
currentSlot,
isClosingPosition,
inputTokenIsSol,
scopeRefreshConfig,
initialInputs.calcs,
budgetAndPriorityFeeIxs,
{
preActionIxs: [],
swapIxs: swap.swapIxs,
lookupTables: swap.lookupTables,
quote: swap.quote,
},
initialInputs.strategy,
initialInputs.collIsKtoken,
useV2Ixs
);
// Send ixs and lookup tables
return {
ixs: ixs.instructions,
flashLoanInfo: ixs.flashLoanInfo,
lookupTables: swap.lookupTables,
swapInputs,
initialInputs: initialInputs,
quote: swap.quote.quoteResponse,
};
})
);
}
export async function buildWithdrawWithLeverageIxs<QuoteResponse>(
market: KaminoMarket,
debtReserve: KaminoReserve,
collReserve: KaminoReserve,
owner: PublicKey,
obligation: KaminoObligation,
referrer: PublicKey,
currentSlot: number,
isClosingPosition: boolean,
depositTokenIsSol: boolean,
scopeRefreshConfig: ScopePriceRefreshConfig | undefined,
calcs: WithdrawLeverageCalcsResult,
budgetAndPriorityFeeIxs: TransactionInstruction[] | undefined,
swapQuoteIxs: SwapIxs<QuoteResponse>,
strategy: StrategyWithAddress | undefined,
collIsKtoken: boolean,
useV2Ixs: boolean
): Promise<LeverageIxsOutput> {
const collTokenMint = collReserve.getLiquidityMint();
const debtTokenMint = debtReserve.getLiquidityMint();
const debtTokenAta = getAssociatedTokenAddressSync(
debtTokenMint,
owner,
false,
debtReserve.getLiquidityTokenProgram()
);
// 1. Create atas & budget txns & user metadata
const { budgetIxs, createAtasIxs, scopeRefreshIx } = await getSetupIxs(
owner,
market,
obligation,
collTokenMint,
collReserve,
collIsKtoken,
debtTokenMint,
debtReserve,
strategy,
scopeRefreshConfig,
budgetAndPriorityFeeIxs
);
const closeWsolAtaIxs: TransactionInstruction[] = [];
if (depositTokenIsSol || debtTokenMint.equals(NATIVE_MINT)) {
const wsolAta = getAssociatedTokenAddress(NATIVE_MINT, owner, false);
closeWsolAtaIxs.push(createCloseAccountInstruction(wsolAta, owner, owner, [], TOKEN_PROGRAM_ID));
}
// TODO: Mihai/Marius check if we can improve this logic and not convert any SOL
// This is here so that we have enough wsol to repay in case the kAB swapped to sol after estimates is not enough
const fillWsolAtaIxs: TransactionInstruction[] = [];
if (debtTokenMint.equals(NATIVE_MINT)) {
const halfSolBalance = (await market.getConnection().getBalance(owner)) / LAMPORTS_PER_SOL / 2;
const balanceToWrap = halfSolBalance < 0.1 ? halfSolBalance : 0.1;
fillWsolAtaIxs.push(
...getTransferWsolIxs(
owner,
getAssociatedTokenAddressSync(NATIVE_MINT, owner),
toLamports(balanceToWrap, SOL_DECIMALS).ceil()
)
);
}
// 2. Prepare the flash borrow and flash repay amounts and ixs
// We borrow exactly how much we need to repay
// and repay that + flash amount fee
const { flashBorrowIx, flashRepayIx } = getFlashLoanInstructions({
borrowIxIndex:
budgetIxs.length + createAtasIxs.length + fillWsolAtaIxs.length + (scopeRefreshIx.length > 0 ? 1 : 0),
walletPublicKey: owner,
lendingMarketAuthority: market.getLendingMarketAuthority(),
lendingMarketAddress: market.getAddress(),
reserve: debtReserve!,
amountLamports: toLamports(calcs.repayAmount, debtReserve!.stats.decimals),
destinationAta: debtTokenAta,
// TODO(referrals): once we support referrals, we will have to replace the placeholder args below:
referrerAccount: market.programId,
referrerTokenState: market.programId,
programId: market.programId,
});
// 3. Repay borrowed tokens and Withdraw tokens from reserve that will be swapped to repay flash loan
const repayAndWithdrawAction = await KaminoAction.buildRepayAndWithdrawTxns(
market,
isClosingPosition ? U64_MAX : toLamports(calcs.repayAmount, debtReserve!.stats.decimals).floor().toString(),
debtTokenMint,
isClosingPosition
? U64_MAX
: toLamports(calcs.depositTokenWithdrawAmount, collReserve!.stats.decimals).ceil().toString(),
collTokenMint,
owner,
currentSlot,
obligation,
useV2Ixs,
undefined,
0,
false,
false,
{ skipInitialization: true, skipLutCreation: true }, // to be checked and created in a setup tx in the UI (won't be the case for withdraw anyway as this would be created in deposit)
referrer
);
const swapInstructions = removeBudgetIxs(swapQuoteIxs.swapIxs);
return {
flashLoanInfo: {
flashLoanFee: debtReserve.getFlashLoanFee(),
flashBorrowReserve: debtReserve.address,
},
instructions: [
...scopeRefreshIx,
...budgetIxs,
...createAtasIxs,
...fillWsolAtaIxs,
...[flashBorrowIx],
...KaminoAction.actionToIxs(repayAndWithdrawAction),
...swapInstructions,
...[flashRepayIx],
...closeWsolAtaIxs,
],
};
}
export async function getAdjustLeverageSwapInputs<QuoteResponse>({
owner,
kaminoMarket,
debtTokenMint,
collTokenMint,
obligation,
depositedLamports,
borrowedLamports,
referrer,
currentSlot,
targetLeverage,
priceCollToDebt,
priceDebtToColl,
slippagePct,
budgetAndPriorityFeeIxs,
kamino,
scopeRefreshConfig,
quoteBufferBps,
isKtoken,
quoter,
useV2Ixs,
}: AdjustLeverageSwapInputsProps<QuoteResponse>): Promise<{
swapInputs: SwapInputs;
flashLoanInfo: FlashLoanInfo;
initialInputs: AdjustLeverageInitialInputs<QuoteResponse>;
}> {
const collReserve = kaminoMarket.getReserveByMint(collTokenMint)!;
const debtReserve = kaminoMarket.getReserveByMint(debtTokenMint)!;
const deposited = fromLamports(depositedLamports, collReserve.stats.decimals);
const borrowed = fromLamports(borrowedLamports, debtReserve.stats.decimals);
const collIsKtoken = await isKtoken(collTokenMint);
const strategy = collIsKtoken ? (await kamino!.getStrategyByKTokenMint(collTokenMint))! : undefined;
// Getting current flash loan fee
const currentLeverage = obligation.refreshedStats.leverage;
const isDepositViaLeverage = targetLeverage.gte(new Decimal(currentLeverage));
let flashLoanFee;
if (isDepositViaLeverage) {
flashLoanFee = collReserve.getFlashLoanFee() || new Decimal(0);
} else {
flashLoanFee = debtReserve.getFlashLoanFee() || new Decimal(0);
}
const { adjustDepositPosition, adjustBorrowPosition } = calcAdjustAmounts({
currentDepositPosition: deposited,
currentBorrowPosition: borrowed,
targetLeverage: targetLeverage,
priceCollToDebt: priceCollToDebt,
flashLoanFee: new Decimal(flashLoanFee),
});
const isDeposit = adjustDepositPosition.gte(0) && adjustBorrowPosition.gte(0);
if (isDepositViaLeverage !== isDeposit) {
throw new Error('Invalid target leverage');
}
if (isDeposit) {
const calcs = await adjustDepositLeverageCalcs(
kaminoMarket,
owner,
debtReserve!,
adjustDepositPosition,
adjustBorrowPosition,
priceDebtToColl,
flashLoanFee,
slippagePct,
collIsKtoken
);
// Build the repay & withdraw collateral tx to get the number of accounts
const klendIxs: LeverageIxsOutput = await buildIncreaseLeverageIxs(
owner,
kaminoMarket,
collTokenMint,
debtTokenMint,
obligation,
referrer,
currentSlot,
calcs,
strategy,
scopeRefreshConfig,
collIsKtoken,
{
preActionIxs: [],
swapIxs: [],
lookupTables: [],
quote: {
priceAInB: new Decimal(0), // not used
quoteResponse: undefined,
},
},
budgetAndPriorityFeeIxs,
useV2Ixs
);
const uniqueKlendAccounts = uniqueAccountsWithProgramIds(klendIxs.instructions);
const swapInputAmount = toLamports(
!collIsKtoken ? calcs.borrowAmount : calcs.amountToFlashBorrowDebt,
debtReserve.stats.decimals
).ceil();
const swapInputsForQuote: SwapInputs = {
inputAmountLamports: swapInputAmount.mul(new Decimal(1).add(quoteBufferBps.div(FullBPS))),
inputMint: debtTokenMint,
outputMint: collTokenMint,
amountDebtAtaBalance: new Decimal(0), // Only needed for ktokens swaps
};
const swapQuote = await quoter(swapInputsForQuote, uniqueKlendAccounts);
const {
adjustDepositPosition: adjustDepositPositionQuotePrice,
adjustBorrowPosition: adjustBorrowPositionQuotePrice,
} = calcAdjustAmounts({
currentDepositPosition: deposited,
currentBorrowPosition: borrowed,
targetLeverage: targetLeverage,
priceCollToDebt: new Decimal(1).div(swapQuote.priceAInB),
flashLoanFee: new Decimal(flashLoanFee),
});
const calcsQuotePrice = await adjustDepositLeverageCalcs(
kaminoMarket,
owner,
debtReserve,
adjustDepositPositionQuotePrice,
adjustBorrowPositionQuotePrice,
swapQuote.priceAInB,
flashLoanFee,
slippagePct,
collIsKtoken
);
const swapInputAmountQuotePrice = toLamports(
!collIsKtoken ? calcsQuotePrice.borrowAmount : calcsQuotePrice.amountToFlashBorrowDebt,
debtReserve.getMintDecimals()
).ceil();
let expectedDebtTokenAtaBalance = new Decimal(0);
if (collIsKtoken) {
expectedDebtTokenAtaBalance = await getExpectedTokenBalanceAfterBorrow(
kaminoMarket.getConnection(),
debtTokenMint,
owner,
toLamports(
!collIsKtoken ? calcsQuotePrice.borrowAmount : calcsQuotePrice.amountToFlashBorrowDebt,
debtReserve.stats.decimals
).floor(),
debtReserve.getMintDecimals()
);
}
return {
swapInputs: {
inputAmountLamports: swapInputAmountQuotePrice,
minOutAmountLamports: toLamports(
!collIsKtoken ? calcsQuotePrice.adjustDepositPosition : calcsQuotePrice.amountToFlashBorrowDebt,
!collIsKtoken ? collReserve.stats.decimals : debtReserve!.stats.decimals
),
inputMint: debtTokenMint,
outputMint: collTokenMint,
amountDebtAtaBalance: expectedDebtTokenAtaBalance,
},
flashLoanInfo: klendIxs.flashLoanInfo,
initialInputs: {
calcs: calcsQuotePrice,
swapQuote,
currentSlot,
collIsKtoken,
strategy,
obligation: obligation,
klendAccounts: uniqueKlendAccounts,
isDeposit: isDeposit,
},
};
} else {
const calcs = adjustWithdrawLeverageCalcs(adjustDepositPosition, adjustBorrowPosition, flashLoanFee, slippagePct);
const klendIxs: LeverageIxsOutput = await buildDecreaseLeverageIxs(
owner,
kaminoMarket,
collTokenMint,
debtTokenMint,
obligation,
referrer,
currentSlot,
calcs,
strategy,
scopeRefreshConfig,
collIsKtoken,
{
preActionIxs: [],
swapIxs: [],
lookupTables: [],
quote: {
priceAInB: new Decimal(0), // not used
quoteResponse: undefined,
},
},
budgetAndPriorityFeeIxs,
useV2Ixs
);
const uniqueKlendAccounts = uniqueAccountsWithProgramIds(klendIxs.instructions);
const swapInputAmount = toLamports(
calcs.withdrawAmountWithSlippageAndFlashLoanFee,
collReserve.state.liquidity.mintDecimals.toNumber()
).ceil();
const swapInputsForQuote: SwapInputs = {
inputAmountLamports: swapInputAmount.mul(new Decimal(1).add(quoteBufferBps.div(FullBPS))),
inputMint: collTokenMint,
outputMint: debtTokenMint,
amountDebtAtaBalance: undefined, // Only needed for ktokens deposits
};
const swapQuote = await quoter(swapInputsForQuote, uniqueKlendAccounts);
const {
adjustDepositPosition: adjustDepositPositionQuotePrice,
adjustBorrowPosition: adjustBorrowPositionQuotePrice,
} = calcAdjustAmounts({
currentDepositPosition: deposited,
currentBorrowPosition: borrowed,
targetLeverage: targetLeverage,
priceCollToDebt: swapQuote.priceAInB,
flashLoanFee: new Decimal(flashLoanFee),
});
const calcsQuotePrice = adjustWithdrawLeverageCalcs(
adjustDepositPositionQuotePrice,
adjustBorrowPositionQuotePrice,
flashLoanFee,
slippagePct
);
const swapInputAmountQuotePrice = toLamports(
calcsQuotePrice.withdrawAmountWithSlippageAndFlashLoanFee,
collReserve.getMintDecimals()
).ceil();
return {
swapInputs: {
inputAmountLamports: swapInputAmountQuotePrice,
minOutAmountLamports: toLamports(calcsQuotePrice.adjustBorrowPosition.abs(), debtReserve.stats.decimals),
inputMint: collTokenMint,
outputMint: debtTokenMint,
amountDebtAtaBalance: undefined, // Only needed for ktokens deposits
},
flashLoanInfo: klendIxs.flashLoanInfo,
initialInputs: {
calcs: calcsQuotePrice,
swapQuote,
currentSlot,
collIsKtoken,
strategy,
obligation,
klendAccounts: uniqueKlendAccounts,
isDeposit,
},
};
}
}
export async function getAdjustLeverageIxs<QuoteResponse>({
owner,
kaminoMarket,
debtTokenMint,
collTokenMint,
obligation,
depositedLamports,
borrowedLamports,
referrer,
currentSlot,
targetLeverage,
priceCollToDebt,
priceDebtToColl,
slippagePct,
budgetAndPriorityFeeIxs,
kamino,
scopeRefreshConfig,
quoteBufferBps,
priceAinB,
isKtoken,
quoter,
swapper,
useV2Ixs,
}: AdjustLeverageProps<QuoteResponse>): Promise<Array<AdjustLeverageIxsResponse<QuoteResponse>>> {
const { swapInputs, initialInputs } = await getAdjustLeverageSwapInputs({
owner,
kaminoMarket,
debtTokenMint,
collTokenMint,
obligation,
depositedLamports,
borrowedLamports,
referrer,
currentSlot,
targetLeverage,
priceCollToDebt,
priceDebtToColl,
slippagePct,
budgetAndPriorityFeeIxs,
kamino,
scopeRefreshConfig,
quoteBufferBps,
priceAinB,
isKtoken,
quoter,
useV2Ixs,
});
// leverage increased so we need to deposit and borrow more
if (initialInputs.isDeposit) {
let depositSwapper: SwapIxsProvider<QuoteResponse>;
if (initialInputs.collIsKtoken) {
if (kamino === undefined) {
throw Error('Ktoken use as collateral for leverage without Kamino instance');
}
depositSwapper = await getTokenToKtokenSwapper(
kaminoMarket,
kamino,
owner,
slippagePct,
swapper,
priceAinB,
false
);
} else {
depositSwapper = swapper;
}
const swapsArray = await depositSwapper(swapInputs, initialInputs.klendAccounts, initialInputs.swapQuote);
return Promise.all(
swapsArray.map(async (swap) => {
const ixs: LeverageIxsOutput = await buildIncreaseLeverageIxs(
owner,
kaminoMarket,
collTokenMint,
debtTokenMint,
obligation,
referrer,
currentSlot,
initialInputs.calcs,
initialInputs.strategy,
scopeRefreshConfig,
initialInputs.collIsKtoken,
{
preActionIxs: [],
swapIxs: swap.swapIxs,
lookupTables: swap.lookupTables,
quote: swap.quote,
},
budgetAndPriorityFeeIxs,
useV2Ixs
);
return {
ixs: ixs.instructions,
flashLoanInfo: ixs.flashLoanInfo,
lookupTables: swap.lookupTables,
swapInputs,
initialInputs,
quote: swap.quote.quoteResponse,
};
})
);
} else {
console.log('Decreasing leverage');
let withdrawSwapper: SwapIxsProvider<QuoteResponse>;
if (initialInputs.collIsKtoken) {
if (kamino === undefined) {
throw Error('Ktoken use as collateral for leverage without Kamino instance');
}
withdrawSwapper = await getKtokenToTokenSwapper(kaminoMarket, kamino, owner, swapper);
} else {
withdrawSwapper = swapper;
}
// 5. Get swap ixs
const swapsArray = await withdrawSwapper(swapInputs, initialInputs.klendAccounts, initialInputs.swapQuote);
return Promise.all(
swapsArray.map(async (swap) => {
const ixs: LeverageIxsOutput = await buildDecreaseLeverageIxs(
owner,
kaminoMarket,
collTokenMint,
debtTokenMint,
obligation,
referrer,
currentSlot,
initialInputs.calcs,
initialInputs.strategy,
scopeRefreshConfig,
initialInputs.collIsKtoken,
{
preActionIxs: [],
swapIxs: swap.swapIxs,
lookupTables: swap.lookupTables,
quote: swap.quote,
},
budgetAndPriorityFeeIxs,
useV2Ixs
);
return {
ixs: ixs.instructions,
flashLoanInfo: ixs.flashLoanInfo,
lookupTables: swap.lookupTables,
swapInputs,
initialInputs,
quote: swap.quote.quoteResponse,
};
})
);
}
}
/**
* Deposit and borrow tokens if leverage increased
*/
async function buildIncreaseLeverageIxs<QuoteResponse>(
owner: PublicKey,
kaminoMarket: KaminoMarket,
collTokenMint: PublicKey,
debtTokenMint: PublicKey,
obligation: KaminoObligation,
referrer: PublicKey,
currentSlot: number,
calcs: AdjustLeverageCalcsResult,
strategy: StrategyWithAddress | undefined,
scopeRefreshConfig: ScopePriceRefreshConfig | undefined,
collIsKtoken: boolean,
swapQuoteIxs: SwapIxs<QuoteResponse>,
budgetAndPriorityFeeIxs: TransactionInstruction[] | undefined,
useV2Ixs: boolean
): Promise<LeverageIxsOutput> {
const collReserve = kaminoMarket.getExistingReserveByMint(collTokenMint);
const debtReserve = kaminoMarket.getExistingReserveByMint(debtTokenMint);
const debtTokenAta = getAssociatedTokenAddressSync(
debtTokenMint,
owner,
false,
debtReserve.getLiquidityTokenProgram()
);
const collTokenAta = getAssociatedTokenAddressSync(
collTokenMint,
owner,
false,
collReserve.getLiquidityTokenProgram()
);
// 1. Create atas & budget txns
const { budgetIxs, createAtasIxs, scopeRefreshIx } = await getSetupIxs(
owner,
kaminoMarket,
obligation,
collTokenMint,
collReserve,
collIsKtoken,
debtTokenMint,
debtReserve,
strategy,
scopeRefreshConfig,
budgetAndPriorityFeeIxs
);
// 2. Create borrow flash loan instruction
const { flashBorrowIx, flashRepayIx } = getFlashLoanInstructions({
borrowIxIndex: budgetIxs.length + createAtasIxs.length + (scopeRefreshIx.length > 0 ? 1 : 0), // TODO: how about user metadata ixs
walletPublicKey: owner,
lendingMarketAuthority: kaminoMarket.getLendingMarketAuthority(),
lendingMarketAddress: kaminoMarket.getAddress(),
reserve: !collIsKtoken ? collReserve! : debtReserve!,
amountLamports: toLamports(
!collIsKtoken ? calcs.adjustDepositPosition : calcs.amountToFlashBorrowDebt,
!collIsKtoken ? collReserve!.stats.decimals : debtReserve!.stats.decimals
),
destinationAta: !collIsKtoken ? collTokenAta : debtTokenAta,
// TODO(referrals): once we support referrals, we will have to replace the placeholder args below:
referrerAccount: kaminoMarket.programId,
referrerTokenState: kaminoMarket.programId,
programId: kaminoMarket.programId,
});
const depositAction = await KaminoAction.buildDepositTxns(
kaminoMarket,
toLamports(calcs.adjustDepositPosition, collReserve!.stats.decimals).floor().toString(),
collTokenMint,
owner,
obligation,
useV2Ixs,
undefined,
0,
false,
false,
{ skipInitialization: true, skipLutCreation: true },
referrer,
currentSlot
);
// 4. Borrow tokens in borrow token reserve that will be swapped to repay flash loan
const borrowAction = await KaminoAction.buildBorrowTxns(
kaminoMarket,
toLamports(calcs.borrowAmount, debtReserve!.stats.decimals).ceil().toString(),
debtTokenMint,
owner,
obligation,
useV2Ixs,
undefined,
0,
false,
false,
{ skipInitialization: true, skipLutCreation: true }, // to be checked and create in a setup tx in the UI (won't be the case for adjust anyway as this would be created in deposit)
referrer,
currentSlot
);
const swapInstructions = removeBudgetIxs(swapQuoteIxs.swapIxs);
const ixs = [
...scopeRefreshIx,
...budgetIxs,
...createAtasIxs,
...[flashBorrowIx],
...(collIsKtoken ? swapInstructions : []),
...KaminoAction.actionToIxs(depositAction),
...KaminoAction.actionToIxs(borrowAction),
...(collIsKtoken ? [] : swapInstructions),
...[flashRepayIx],
];
const flashBorrowReserve = !collIsKtoken ? collReserve! : debtReserve!;
const res: LeverageIxsOutput = {
flashLoanInfo: {
flashBorrowReserve: flashBorrowReserve.address,
flashLoanFee: flashBorrowReserve.getFlashLoanFee(),
},
instructions: ixs,
};
return res;
}
/**
* Withdraw and repay tokens if leverage decreased
*/
async function buildDecreaseLeverageIxs<QuoteResponse>(
owner: PublicKey,
kaminoMarket: KaminoMarket,
collTokenMint: PublicKey,
debtTokenMint: PublicKey,
obligation: KaminoObligation,
referrer: PublicKey,
currentSlot: number,
calcs: AdjustLeverageCalcsResult,
strategy: StrategyWithAddress | undefined,
scopeRefreshConfig: ScopePriceRefreshConfig | undefined,
collIsKtoken: boolean,
swapQuoteIxs: SwapIxs<QuoteResponse>,
budgetAndPriorityFeeIxs: TransactionInstruction[] | undefined,
useV2Ixs: boolean
): Promise<LeverageIxsOutput> {
const collReserve = kaminoMarket.getExistingReserveByMint(collTokenMint);
const debtReserve = kaminoMarket.getExistingReserveByMint(debtTokenMint);
const debtTokenAta = getAssociatedTokenAddressSync(
debtTokenMint,
owner,
false,
debtReserve.getLiquidityTokenProgram()
);
// 1. Create atas & budget txns
const { budgetIxs, createAtasIxs, scopeRefreshIx } = await getSetupIxs(
owner,
kaminoMarket,
obligation,
collTokenMint,
collReserve,
collIsKtoken,
debtTokenMint,
debtReserve,
strategy,
scopeRefreshConfig,
budgetAndPriorityFeeIxs
);
// TODO: Mihai/Marius check if we can improve this logic and not convert any SOL
// This is here so that we have enough wsol to repay in case the kAB swapped to sol after estimates is not enough
const closeWsolAtaIxs: TransactionInstruction[] = [];
const fillWsolAtaIxs: TransactionInstruction[] = [];
if (debtTokenMint.equals(NATIVE_MINT)) {
const wsolAta = getAssociatedTokenAddress(NATIVE_MINT, owner, false);
closeWsolAtaIxs.push(createCloseAccountInstruction(wsolAta, owner, owner, [], TOKEN_PROGRAM_ID));
const halfSolBalance = (await kaminoMarket.getConnection().getBalance(owner)) / LAMPORTS_PER_SOL / 2;
const balanceToWrap = halfSolBalance < 0.1 ? halfSolBalance : 0.1;
fillWsolAtaIxs.push(
...getTransferWsolIxs(owner, wsolAta, toLamports(balanceToWrap, debtReserve!.stats.decimals).ceil())
);
}
// 3. Flash borrow & repay amount to repay (debt)
const { flashBorrowIx, flashRepayIx } = getFlashLoanInstructions({
borrowIxIndex:
budgetIxs.length + createAtasIxs.length + fillWsolAtaIxs.length + (scopeRefreshIx.length > 0 ? 1 : 0),
walletPublicKey: owner,
lendingMarketAuthority: kaminoMarket.getLendingMarketAuthority(),
lendingMarketAddress: kaminoMarket.getAddress(),
reserve: debtReserve!,
amountLamports: toLamports(Decimal.abs(calcs.adjustBorrowPosition), debtReserve!.stats.decimals),
destinationAta: debtTokenAta,
// TODO(referrals): once we support referrals, we will have to replace the placeholder args below:
referrerAccount: kaminoMarket.programId,
referrerTokenState: kaminoMarket.programId,
programId: kaminoMarket.programId,
});
// 4. Actually do the repay of the flash borrowed amounts
const repayAction = await KaminoAction.buildRepayTxns(
kaminoMarket,
toLamports(Decimal.abs(calcs.adjustBorrowPosition), debtReserve!.stats.decimals).floor().toString(),
debtTokenMint,
owner,
obligation,
useV2Ixs,
undefined,
currentSlot,
undefined,
0,
false,
false,
{ skipInitialization: true, skipLutCreation: true }, // to be checked and create in a setup tx in the UI (won't be the case for adjust anyway as this would be created in deposit)
referrer
);
// 6. Withdraw collateral (a little bit more to be able to pay for the slippage on swap)
const withdrawAction = await KaminoAction.buildWithdrawTxns(
kaminoMarket,
toLamports(calcs.withdrawAmountWithSlippageAndFlashLoanFee, collReserve!.stats.decimals).ceil().toString(),
collTokenMint,
owner,
obligation,
useV2Ixs,
undefined,
0,
false,
false,
{ skipInitialization: true, skipLutCreation: true }, // to be checked and create in a setup tx in the UI (won't be the case for adjust anyway as this would be created in deposit)
referrer,
currentSlot
);
const swapInstructions = removeBudgetIxs(swapQuoteIxs.swapIxs);
const ixs = [
...scopeRefreshIx,
...budgetIxs,
...createAtasIxs,
...fillWsolAtaIxs,
...[flashBorrowIx],
...KaminoAction.actionToIxs(repayAction),
...KaminoAction.actionToIxs(withdrawAction),
...swapInstructions,
...[flashRepayIx],
...closeWsolAtaIxs,
];
const res: LeverageIxsOutput = {
flashLoanInfo: {
flashBorrowReserve: debtReserve!.address,
flashLoanFee: debtReserve!.getFlashLoanFee(),
},
instructions: ixs,
};
return res;
}
export const getSetupIxs = async (
owner: PublicKey,
kaminoMarket: KaminoMarket,
obligation: KaminoObligation | ObligationType | undefined,
collTokenMint: PublicKey,
collReserve: KaminoReserve,
collIsKtoken: boolean,
debtTokenMint: PublicKey,
debtReserve: KaminoReserve,
strategy: StrategyWithAddress | undefined,
scopeRefreshConfig: ScopePriceRefreshConfig | undefined,
budgetAndPriorityFeeIxs: TransactionInstruction[] | undefined
) => {
const budgetIxs = budgetAndPriorityFeeIxs || getComputeBudgetAndPriorityFeeIxs(3000000);
const mintsWithTokenPrograms = getTokenMintsWithTokenPrograms(
collTokenMint,
collReserve,
debtTokenMint,
debtReserve,
collIsKtoken,
strategy
);
const createAtasIxs = createAtasIdempotent(owner, mintsWithTokenPrograms).map((x) => x.createAtaIx);
const scopeRefreshIx = await getScopeRefreshIx(
kaminoMarket,
collReserve,
debtReserve,
obligation,
scopeRefreshConfig
);
return {
budgetIxs,
createAtasIxs,
scopeRefreshIx,
};
};
export const getScopeRefreshIx = async (
market: KaminoMarket,
collReserve: KaminoReserve,
debtReserve: KaminoReserve,
obligation: KaminoObligation | ObligationType | undefined,
scopeRefreshConfig: ScopePriceRefreshConfig | undefined
): Promise<TransactionInstruction[]> => {
const allReserves =
obligation && isKaminoObligation(obligation)
? new PublicKeySet<PublicKey>([
...obligation.getDeposits().map((x) => x.reserveAddress),
...obligation.getBorrows().map((x) => x.reserveAddress),
collReserve.address,
debtReserve.address,
]).toArray()
: new PublicKeySet<PublicKey>([collReserve.address, debtReserve.address]).toArray();
const tokenIds = getTokenIdsForScopeRefresh(market, allReserves);
const scopeRefreshIxs: TransactionInstruction[] = [];
if (tokenIds.length > 0 && scopeRefreshConfig) {
scopeRefreshIxs.push(
await scopeRefreshConfig.scope.refreshPriceListIx(
{
feed: scopeRefreshConfig.scopeFeed,
},
tokenIds
)
);
}
return scopeRefreshIxs;
};
cons