fbonds-core
Version:
Banx protocol sdk
151 lines (150 loc) • 6.99 kB
JavaScript
"use strict";
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
return new (P || (P = Promise))(function (resolve, reject) {
function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
step((generator = generator.apply(thisArg, _arguments || [])).next());
});
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.refinancePerpetualLoan = void 0;
const token_1 = require("@coral-xyz/anchor/dist/cjs/utils/token");
const common_1 = require("../../../../../common");
const constants_1 = require("../../../../constants");
const helpers_1 = require("../../../../helpers");
const offer_1 = require("../../offer");
const anchor_1 = require("@coral-xyz/anchor");
const refinancePerpetualLoan = (_a) => __awaiter(void 0, [_a], void 0, function* ({ programId, connection, accounts, args, sendTxn, }) {
const program = (0, helpers_1.returnAnchorProgram)(connection);
const instructions = [];
const bondOfferSeed = Math.ceil(Math.random() * 1000000);
const [bondOffer] = yield anchor_1.web3.PublicKey.findProgramAddress([constants_1.ENCODER.encode(constants_1.BOND_OFFER_PREFIX), accounts.userPubkey.toBuffer(), constants_1.ENCODER.encode(bondOfferSeed.toString())], program.programId);
const [bondTradeTransactionV2] = yield anchor_1.web3.PublicKey.findProgramAddress([
constants_1.ENCODER.encode(constants_1.AUTOCOMPOUND_DEPOSIT_PREFIX),
accounts.fbond.toBuffer(),
bondOffer.toBuffer(),
constants_1.ENCODER.encode('1'),
constants_1.ENCODER.encode('1'),
], program.programId);
const splTokenMint = (0, offer_1.getTokenMintFromLendingTokenType)(args.lendingTokenType);
const [lenderVault, lenderVaultBump] = yield anchor_1.web3.PublicKey.findProgramAddress([
constants_1.ENCODER.encode(constants_1.USER_VAULT_PREFIX),
accounts.userPubkey.toBuffer(),
splTokenMint.toBuffer()
], program.programId);
const [oldLenderVault, oldLenderVaultBump] = yield anchor_1.web3.PublicKey.findProgramAddress([
constants_1.ENCODER.encode(constants_1.USER_VAULT_PREFIX),
accounts.previousLender.toBuffer(),
splTokenMint.toBuffer()
], program.programId);
const userSplTokenAccountUninitialized = yield (0, common_1.findAssociatedTokenAddress)(accounts.userPubkey, splTokenMint);
const oldVaultSplTokenAccountUninitialized = yield (0, common_1.findAssociatedTokenAddress)(oldLenderVault, splTokenMint);
const newVaultSplTokenAccountUninitialized = yield (0, common_1.findAssociatedTokenAddress)(lenderVault, splTokenMint);
const protocolFeeReceiverSplTokenAccountUninitialized = yield (0, common_1.findAssociatedTokenAddress)(accounts.protocolFeeReceiver, splTokenMint);
const remainingAccounts = [
{
pubkey: protocolFeeReceiverSplTokenAccountUninitialized,
isSigner: false,
isWritable: true,
},
{
pubkey: oldVaultSplTokenAccountUninitialized,
isSigner: false,
isWritable: true,
},
{
pubkey: newVaultSplTokenAccountUninitialized,
isSigner: false,
isWritable: true,
},
{
pubkey: userSplTokenAccountUninitialized,
isSigner: false,
isWritable: true,
},
{
pubkey: accounts.protocolFeeReceiver,
isSigner: false,
isWritable: true,
},
{
pubkey: accounts.refinanceFromOffer ? accounts.refinanceFromOffer : constants_1.EMPTY_PUBKEY,
isSigner: false,
isWritable: true,
},
];
if (args.refininFromOfferParams) {
remainingAccounts.push({
pubkey: args.refininFromOfferParams.bondOffer,
isSigner: false,
isWritable: true,
});
if (args.refininFromOfferParams.oraclePriceFeed) {
remainingAccounts.push({
pubkey: args.refininFromOfferParams.oraclePriceFeed,
isSigner: false,
isWritable: true,
});
}
}
instructions.push(yield program.methods
.updateLiquidityUserVault(new anchor_1.BN(0), true)
.accountsStrict({
user: accounts.userPubkey,
systemProgram: anchor_1.web3.SystemProgram.programId,
rent: anchor_1.web3.SYSVAR_RENT_PUBKEY,
tokenProgram: token_1.TOKEN_PROGRAM_ID,
userSplTokenAccountUninitialized,
splTokenMint: splTokenMint,
vaultSplTokenAccountUninitialized: newVaultSplTokenAccountUninitialized,
associatedTokenProgram: token_1.ASSOCIATED_PROGRAM_ID,
lenderVault
})
.instruction());
const [rentVault, rentVaultBump] = yield anchor_1.web3.PublicKey.findProgramAddress([
constants_1.ENCODER.encode(constants_1.RENT_VAULT),
], program.programId);
instructions.push(yield program.methods
.refinancePerpetualLoan(new anchor_1.BN(bondOfferSeed), new anchor_1.BN(args.newApr), new anchor_1.BN(args.newLiqLtv ? args.newLiqLtv : 0))
.accountsStrict({
oldBondTradeTransaction: accounts.previousBondTradeTransaction,
fbond: accounts.fbond,
bondTradeTransaction: bondTradeTransactionV2,
user: accounts.userPubkey,
hadoMarket: accounts.hadoMarket,
systemProgram: anchor_1.web3.SystemProgram.programId,
rent: anchor_1.web3.SYSVAR_RENT_PUBKEY,
splTokenMint,
tokenProgram: token_1.TOKEN_PROGRAM_ID,
associatedTokenProgram: token_1.ASSOCIATED_PROGRAM_ID,
lenderVault,
bondOffer: bondOffer,
oldBondOffer: accounts.oldBondOffer,
oldLenderVault,
rentVault,
lenderVaultUser: args.refininFromOfferParams ? args.refininFromOfferParams.newLender : accounts.userPubkey,
})
.remainingAccounts(remainingAccounts)
.instruction());
const transaction = new anchor_1.web3.Transaction();
for (let instruction of instructions)
transaction.add(instruction);
const signers = [];
yield sendTxn(transaction, signers);
return {
accounts: {
fraktBond: accounts.fbond,
bondOffer: bondOffer,
bondTradeTransaction: bondTradeTransactionV2,
oldBondOffer: accounts.oldBondOffer,
previousBondTradeTransaction: accounts.previousBondTradeTransaction,
lenderVault,
oldLenderVault,
},
instructions,
signers
};
});
exports.refinancePerpetualLoan = refinancePerpetualLoan;