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Текущая директория: /usr/lib/node_modules/bitgo/node_modules/xrpl/dist/npm/utils
Просмотр файла: getBalanceChanges.js
"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
const bignumber_js_1 = __importDefault(require("bignumber.js"));
const collections_1 = require("./collections");
const xrpConversion_1 = require("./xrpConversion");
function normalizeNode(affectedNode) {
const diffType = Object.keys(affectedNode)[0];
const node = affectedNode[diffType];
return Object.assign(Object.assign({}, node), { NodeType: diffType, LedgerEntryType: node.LedgerEntryType, LedgerIndex: node.LedgerIndex, NewFields: node.NewFields, FinalFields: node.FinalFields, PreviousFields: node.PreviousFields });
}
function normalizeNodes(metadata) {
if (metadata.AffectedNodes.length === 0) {
return [];
}
return metadata.AffectedNodes.map(normalizeNode);
}
function groupByAccount(balanceChanges) {
const grouped = (0, collections_1.groupBy)(balanceChanges, (node) => node.account);
return Object.entries(grouped).map(([account, items]) => {
return { account, balances: items.map((item) => item.balance) };
});
}
function getValue(balance) {
if (typeof balance === 'string') {
return new bignumber_js_1.default(balance);
}
return new bignumber_js_1.default(balance.value);
}
function computeBalanceChange(node) {
var _a, _b, _c;
let value = null;
if ((_a = node.NewFields) === null || _a === void 0 ? void 0 : _a.Balance) {
value = getValue(node.NewFields.Balance);
}
else if (((_b = node.PreviousFields) === null || _b === void 0 ? void 0 : _b.Balance) && ((_c = node.FinalFields) === null || _c === void 0 ? void 0 : _c.Balance)) {
value = getValue(node.FinalFields.Balance).minus(getValue(node.PreviousFields.Balance));
}
if (value === null || value.isZero()) {
return null;
}
return value;
}
function getXRPQuantity(node) {
var _a, _b, _c;
const value = computeBalanceChange(node);
if (value === null) {
return null;
}
return {
account: ((_b = (_a = node.FinalFields) === null || _a === void 0 ? void 0 : _a.Account) !== null && _b !== void 0 ? _b : (_c = node.NewFields) === null || _c === void 0 ? void 0 : _c.Account),
balance: {
currency: 'XRP',
value: (0, xrpConversion_1.dropsToXrp)(value).toString(),
},
};
}
function flipTrustlinePerspective(balanceChange) {
const negatedBalance = new bignumber_js_1.default(balanceChange.balance.value).negated();
return {
account: balanceChange.balance.issuer,
balance: {
issuer: balanceChange.account,
currency: balanceChange.balance.currency,
value: negatedBalance.toString(),
},
};
}
function getTrustlineQuantity(node) {
var _a, _b;
const value = computeBalanceChange(node);
if (value === null) {
return null;
}
const fields = node.NewFields == null ? node.FinalFields : node.NewFields;
const result = {
account: (_a = fields === null || fields === void 0 ? void 0 : fields.LowLimit) === null || _a === void 0 ? void 0 : _a.issuer,
balance: {
issuer: (_b = fields === null || fields === void 0 ? void 0 : fields.HighLimit) === null || _b === void 0 ? void 0 : _b.issuer,
currency: (fields === null || fields === void 0 ? void 0 : fields.Balance).currency,
value: value.toString(),
},
};
return [result, flipTrustlinePerspective(result)];
}
function getBalanceChanges(metadata) {
const quantities = normalizeNodes(metadata).map((node) => {
if (node.LedgerEntryType === 'AccountRoot') {
const xrpQuantity = getXRPQuantity(node);
if (xrpQuantity == null) {
return [];
}
return [xrpQuantity];
}
if (node.LedgerEntryType === 'RippleState') {
const trustlineQuantity = getTrustlineQuantity(node);
if (trustlineQuantity == null) {
return [];
}
return trustlineQuantity;
}
return [];
});
return groupByAccount(quantities.flat());
}
exports.default = getBalanceChanges;
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