@kamino-finance/klend-sdk
Version:
Typescript SDK for interacting with the Kamino Lending (klend) protocol
292 lines • 15 kB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.Obligation = void 0;
const web3_js_1 = require("@solana/web3.js");
const bn_js_1 = __importDefault(require("bn.js")); // eslint-disable-line @typescript-eslint/no-unused-vars
const borsh = __importStar(require("@coral-xyz/borsh")); // eslint-disable-line @typescript-eslint/no-unused-vars
const types = __importStar(require("../types")); // eslint-disable-line @typescript-eslint/no-unused-vars
const programId_1 = require("../programId");
/** Lending market obligation state */
class Obligation {
/** Version of the struct */
tag;
/** Last update to collateral, liquidity, or their market values */
lastUpdate;
/** Lending market address */
lendingMarket;
/** Owner authority which can borrow liquidity */
owner;
/** Deposited collateral for the obligation, unique by deposit reserve address */
deposits;
/** Worst LTV for the collaterals backing the loan, represented as a percentage */
lowestReserveDepositLiquidationLtv;
/** Market value of deposits (scaled fraction) */
depositedValueSf;
/** Borrowed liquidity for the obligation, unique by borrow reserve address */
borrows;
/** Risk adjusted market value of borrows/debt (sum of price * borrowed_amount * borrow_factor) (scaled fraction) */
borrowFactorAdjustedDebtValueSf;
/** Market value of borrows - used for max_liquidatable_borrowed_amount (scaled fraction) */
borrowedAssetsMarketValueSf;
/** The maximum borrow value at the weighted average loan to value ratio (scaled fraction) */
allowedBorrowValueSf;
/** The dangerous borrow value at the weighted average liquidation threshold (scaled fraction) */
unhealthyBorrowValueSf;
/** The asset tier of the deposits */
depositsAssetTiers;
/** The asset tier of the borrows */
borrowsAssetTiers;
/** The elevation group id the obligation opted into. */
elevationGroup;
/** The number of obsolete reserves the obligation has a deposit in */
numOfObsoleteDepositReserves;
/** Marked = 1 if borrows array is not empty, 0 = borrows empty */
hasDebt;
/** Wallet address of the referrer */
referrer;
/** Marked = 1 if borrowing disabled, 0 = borrowing enabled */
borrowingDisabled;
/**
* A target LTV set by the risk council when marking this obligation for deleveraging.
* Only effective when `deleveraging_margin_call_started_slot != 0`.
*/
autodeleverageTargetLtvPct;
/** The lowest max LTV found amongst the collateral deposits */
lowestReserveDepositMaxLtvPct;
/** The number of obsolete reserves the obligation has a borrow in */
numOfObsoleteBorrowReserves;
reserved;
highestBorrowFactorPct;
/**
* A timestamp at which the risk council most-recently marked this obligation for deleveraging.
* Zero if not currently subject to deleveraging.
*/
autodeleverageMarginCallStartedTimestamp;
/**
* Owner-defined, liquidator-executed orders applicable to this obligation.
* Typical use-cases would be a stop-loss and a take-profit (possibly co-existing).
*/
orders;
padding3;
static discriminator = Buffer.from([
168, 206, 141, 106, 88, 76, 172, 167,
]);
static layout = borsh.struct([
borsh.u64("tag"),
types.LastUpdate.layout("lastUpdate"),
borsh.publicKey("lendingMarket"),
borsh.publicKey("owner"),
borsh.array(types.ObligationCollateral.layout(), 8, "deposits"),
borsh.u64("lowestReserveDepositLiquidationLtv"),
borsh.u128("depositedValueSf"),
borsh.array(types.ObligationLiquidity.layout(), 5, "borrows"),
borsh.u128("borrowFactorAdjustedDebtValueSf"),
borsh.u128("borrowedAssetsMarketValueSf"),
borsh.u128("allowedBorrowValueSf"),
borsh.u128("unhealthyBorrowValueSf"),
borsh.array(borsh.u8(), 8, "depositsAssetTiers"),
borsh.array(borsh.u8(), 5, "borrowsAssetTiers"),
borsh.u8("elevationGroup"),
borsh.u8("numOfObsoleteDepositReserves"),
borsh.u8("hasDebt"),
borsh.publicKey("referrer"),
borsh.u8("borrowingDisabled"),
borsh.u8("autodeleverageTargetLtvPct"),
borsh.u8("lowestReserveDepositMaxLtvPct"),
borsh.u8("numOfObsoleteBorrowReserves"),
borsh.array(borsh.u8(), 4, "reserved"),
borsh.u64("highestBorrowFactorPct"),
borsh.u64("autodeleverageMarginCallStartedTimestamp"),
borsh.array(types.ObligationOrder.layout(), 2, "orders"),
borsh.array(borsh.u64(), 93, "padding3"),
]);
constructor(fields) {
this.tag = fields.tag;
this.lastUpdate = new types.LastUpdate({ ...fields.lastUpdate });
this.lendingMarket = fields.lendingMarket;
this.owner = fields.owner;
this.deposits = fields.deposits.map((item) => new types.ObligationCollateral({ ...item }));
this.lowestReserveDepositLiquidationLtv =
fields.lowestReserveDepositLiquidationLtv;
this.depositedValueSf = fields.depositedValueSf;
this.borrows = fields.borrows.map((item) => new types.ObligationLiquidity({ ...item }));
this.borrowFactorAdjustedDebtValueSf =
fields.borrowFactorAdjustedDebtValueSf;
this.borrowedAssetsMarketValueSf = fields.borrowedAssetsMarketValueSf;
this.allowedBorrowValueSf = fields.allowedBorrowValueSf;
this.unhealthyBorrowValueSf = fields.unhealthyBorrowValueSf;
this.depositsAssetTiers = fields.depositsAssetTiers;
this.borrowsAssetTiers = fields.borrowsAssetTiers;
this.elevationGroup = fields.elevationGroup;
this.numOfObsoleteDepositReserves = fields.numOfObsoleteDepositReserves;
this.hasDebt = fields.hasDebt;
this.referrer = fields.referrer;
this.borrowingDisabled = fields.borrowingDisabled;
this.autodeleverageTargetLtvPct = fields.autodeleverageTargetLtvPct;
this.lowestReserveDepositMaxLtvPct = fields.lowestReserveDepositMaxLtvPct;
this.numOfObsoleteBorrowReserves = fields.numOfObsoleteBorrowReserves;
this.reserved = fields.reserved;
this.highestBorrowFactorPct = fields.highestBorrowFactorPct;
this.autodeleverageMarginCallStartedTimestamp =
fields.autodeleverageMarginCallStartedTimestamp;
this.orders = fields.orders.map((item) => new types.ObligationOrder({ ...item }));
this.padding3 = fields.padding3;
}
static async fetch(c, address, programId = programId_1.PROGRAM_ID) {
const info = await c.getAccountInfo(address);
if (info === null) {
return null;
}
if (!info.owner.equals(programId)) {
throw new Error("account doesn't belong to this program");
}
return this.decode(info.data);
}
static async fetchMultiple(c, addresses, programId = programId_1.PROGRAM_ID) {
const infos = await c.getMultipleAccountsInfo(addresses);
return infos.map((info) => {
if (info === null) {
return null;
}
if (!info.owner.equals(programId)) {
throw new Error("account doesn't belong to this program");
}
return this.decode(info.data);
});
}
static decode(data) {
if (!data.slice(0, 8).equals(Obligation.discriminator)) {
throw new Error("invalid account discriminator");
}
const dec = Obligation.layout.decode(data.slice(8));
return new Obligation({
tag: dec.tag,
lastUpdate: types.LastUpdate.fromDecoded(dec.lastUpdate),
lendingMarket: dec.lendingMarket,
owner: dec.owner,
deposits: dec.deposits.map((item /* eslint-disable-line @typescript-eslint/no-explicit-any */) => types.ObligationCollateral.fromDecoded(item)),
lowestReserveDepositLiquidationLtv: dec.lowestReserveDepositLiquidationLtv,
depositedValueSf: dec.depositedValueSf,
borrows: dec.borrows.map((item /* eslint-disable-line @typescript-eslint/no-explicit-any */) => types.ObligationLiquidity.fromDecoded(item)),
borrowFactorAdjustedDebtValueSf: dec.borrowFactorAdjustedDebtValueSf,
borrowedAssetsMarketValueSf: dec.borrowedAssetsMarketValueSf,
allowedBorrowValueSf: dec.allowedBorrowValueSf,
unhealthyBorrowValueSf: dec.unhealthyBorrowValueSf,
depositsAssetTiers: dec.depositsAssetTiers,
borrowsAssetTiers: dec.borrowsAssetTiers,
elevationGroup: dec.elevationGroup,
numOfObsoleteDepositReserves: dec.numOfObsoleteDepositReserves,
hasDebt: dec.hasDebt,
referrer: dec.referrer,
borrowingDisabled: dec.borrowingDisabled,
autodeleverageTargetLtvPct: dec.autodeleverageTargetLtvPct,
lowestReserveDepositMaxLtvPct: dec.lowestReserveDepositMaxLtvPct,
numOfObsoleteBorrowReserves: dec.numOfObsoleteBorrowReserves,
reserved: dec.reserved,
highestBorrowFactorPct: dec.highestBorrowFactorPct,
autodeleverageMarginCallStartedTimestamp: dec.autodeleverageMarginCallStartedTimestamp,
orders: dec.orders.map((item /* eslint-disable-line @typescript-eslint/no-explicit-any */) => types.ObligationOrder.fromDecoded(item)),
padding3: dec.padding3,
});
}
toJSON() {
return {
tag: this.tag.toString(),
lastUpdate: this.lastUpdate.toJSON(),
lendingMarket: this.lendingMarket.toString(),
owner: this.owner.toString(),
deposits: this.deposits.map((item) => item.toJSON()),
lowestReserveDepositLiquidationLtv: this.lowestReserveDepositLiquidationLtv.toString(),
depositedValueSf: this.depositedValueSf.toString(),
borrows: this.borrows.map((item) => item.toJSON()),
borrowFactorAdjustedDebtValueSf: this.borrowFactorAdjustedDebtValueSf.toString(),
borrowedAssetsMarketValueSf: this.borrowedAssetsMarketValueSf.toString(),
allowedBorrowValueSf: this.allowedBorrowValueSf.toString(),
unhealthyBorrowValueSf: this.unhealthyBorrowValueSf.toString(),
depositsAssetTiers: this.depositsAssetTiers,
borrowsAssetTiers: this.borrowsAssetTiers,
elevationGroup: this.elevationGroup,
numOfObsoleteDepositReserves: this.numOfObsoleteDepositReserves,
hasDebt: this.hasDebt,
referrer: this.referrer.toString(),
borrowingDisabled: this.borrowingDisabled,
autodeleverageTargetLtvPct: this.autodeleverageTargetLtvPct,
lowestReserveDepositMaxLtvPct: this.lowestReserveDepositMaxLtvPct,
numOfObsoleteBorrowReserves: this.numOfObsoleteBorrowReserves,
reserved: this.reserved,
highestBorrowFactorPct: this.highestBorrowFactorPct.toString(),
autodeleverageMarginCallStartedTimestamp: this.autodeleverageMarginCallStartedTimestamp.toString(),
orders: this.orders.map((item) => item.toJSON()),
padding3: this.padding3.map((item) => item.toString()),
};
}
static fromJSON(obj) {
return new Obligation({
tag: new bn_js_1.default(obj.tag),
lastUpdate: types.LastUpdate.fromJSON(obj.lastUpdate),
lendingMarket: new web3_js_1.PublicKey(obj.lendingMarket),
owner: new web3_js_1.PublicKey(obj.owner),
deposits: obj.deposits.map((item) => types.ObligationCollateral.fromJSON(item)),
lowestReserveDepositLiquidationLtv: new bn_js_1.default(obj.lowestReserveDepositLiquidationLtv),
depositedValueSf: new bn_js_1.default(obj.depositedValueSf),
borrows: obj.borrows.map((item) => types.ObligationLiquidity.fromJSON(item)),
borrowFactorAdjustedDebtValueSf: new bn_js_1.default(obj.borrowFactorAdjustedDebtValueSf),
borrowedAssetsMarketValueSf: new bn_js_1.default(obj.borrowedAssetsMarketValueSf),
allowedBorrowValueSf: new bn_js_1.default(obj.allowedBorrowValueSf),
unhealthyBorrowValueSf: new bn_js_1.default(obj.unhealthyBorrowValueSf),
depositsAssetTiers: obj.depositsAssetTiers,
borrowsAssetTiers: obj.borrowsAssetTiers,
elevationGroup: obj.elevationGroup,
numOfObsoleteDepositReserves: obj.numOfObsoleteDepositReserves,
hasDebt: obj.hasDebt,
referrer: new web3_js_1.PublicKey(obj.referrer),
borrowingDisabled: obj.borrowingDisabled,
autodeleverageTargetLtvPct: obj.autodeleverageTargetLtvPct,
lowestReserveDepositMaxLtvPct: obj.lowestReserveDepositMaxLtvPct,
numOfObsoleteBorrowReserves: obj.numOfObsoleteBorrowReserves,
reserved: obj.reserved,
highestBorrowFactorPct: new bn_js_1.default(obj.highestBorrowFactorPct),
autodeleverageMarginCallStartedTimestamp: new bn_js_1.default(obj.autodeleverageMarginCallStartedTimestamp),
orders: obj.orders.map((item) => types.ObligationOrder.fromJSON(item)),
padding3: obj.padding3.map((item) => new bn_js_1.default(item)),
});
}
}
exports.Obligation = Obligation;
//# sourceMappingURL=Obligation.js.map