fbonds-core/lib/fbond-protocol/nftLendingUtils/main.js

Banx protocol sdk

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.filterSimpleOffersByVaultBalance = filterSimpleOffersByVaultBalance;
const anchor_1 = require("@coral-xyz/anchor");
const lodash_1 = require("lodash");
function createEscrowBalanceByLender(userVaults) {
    return (0, lodash_1.chain)(userVaults)
        .map((userVault) => [userVault.user.toBase58(), userVault.offerLiquidityAmount])
        .fromPairs()
        .value();
}
function filterSimpleOffersByVaultBalance(offers, userVaults) {
    const escrowBalanceByLender = createEscrowBalanceByLender(userVaults);
    const { filteredOffers } = (0, lodash_1.reduce)(offers, (acc, offer) => {
        var _a;
        const { fundsSolOrTokenBalance, bidSettlement, assetReceiver } = offer;
        const offerSize = fundsSolOrTokenBalance.add(bidSettlement);
        const escrowBalance = (_a = acc.escrowBalanceByLender[assetReceiver.toBase58()]) !== null && _a !== void 0 ? _a : new anchor_1.BN(0);
        if (escrowBalance.gte(offerSize)) {
            return {
                filteredOffers: [...acc.filteredOffers, offer],
                escrowBalanceByLender: Object.assign(Object.assign({}, escrowBalanceByLender), { [assetReceiver.toBase58()]: escrowBalance.sub(offerSize) }),
            };
        }
        return acc;
    }, { filteredOffers: [], escrowBalanceByLender });
    return filteredOffers;
}