@bithomp/xrpl-api
Version:
A Bithomp JavaScript/TypeScript library for interacting with the XRP Ledger
235 lines (234 loc) • 9.76 kB
JavaScript
"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
var ownKeys = function(o) {
ownKeys = Object.getOwnPropertyNames || function (o) {
var ar = [];
for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
return ar;
};
return ownKeys(o);
};
return function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
__setModuleDefault(result, mod);
return result;
};
})();
var __importDefault = (this && this.__importDefault) || function (mod) {
return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.parseNFTokenChanges = parseNFTokenChanges;
const lodash_1 = __importDefault(require("lodash"));
const AddressCodec = __importStar(require("ripple-address-codec"));
const common_1 = require("../../common");
function parseNFTokenChanges(tx) {
return new NFTokenChanges(tx).call();
}
class NFTokenChanges {
constructor(tx) {
this.tx = tx;
this.changes = {};
this.affectedAccounts = [];
this.finalNFTokens = {};
this.previousNFTokens = {};
}
call() {
if (this.hasAffectedNodes() === false) {
return this.changes;
}
if (this.tx.TransactionType === "NFTokenModify") {
this.parseNFTokensURIChanges();
}
else {
this.parseAffectedNodes();
this.parseNFTokensChanges();
}
return this.changes;
}
hasAffectedNodes() {
if (this.tx.meta?.AffectedNodes === undefined) {
return false;
}
if (this.tx.meta?.AffectedNodes?.length === 0) {
return false;
}
return true;
}
addChange(account, change) {
if (!this.changes[account]) {
this.changes[account] = [];
}
this.changes[account].push((0, common_1.removeUndefined)(change));
}
parseAffectedNodes() {
for (const affectedNode of this.tx.meta.AffectedNodes) {
const node = affectedNode.CreatedNode || affectedNode.ModifiedNode || affectedNode.DeletedNode;
if (node?.LedgerEntryType === "NFTokenPage" && node?.LedgerIndex) {
const account = AddressCodec.encodeAccountID(Buffer.from(node?.LedgerIndex.slice(0, 40), "hex"));
if (this.affectedAccounts.includes(account) === false) {
this.affectedAccounts.push(account);
}
if (affectedNode.CreatedNode) {
this.parseFinalNFTokens(account, node.NewFields?.NFTokens);
}
if ((affectedNode.ModifiedNode || affectedNode.DeletedNode) && Array.isArray(node.PreviousFields?.NFTokens)) {
this.parseFinalNFTokens(account, node.FinalFields?.NFTokens);
this.parsePreviousNFTokens(account, node.PreviousFields?.NFTokens);
}
if (affectedNode.DeletedNode && node.PreviousFields === undefined) {
this.parsePreviousNFTokens(account, node.FinalFields?.NFTokens);
}
}
}
}
parseFinalNFTokens(account, NFTokens) {
if (this.finalNFTokens[account] === undefined) {
this.finalNFTokens[account] = [];
}
if (Array.isArray(NFTokens)) {
this.finalNFTokens[account] = lodash_1.default.concat(this.finalNFTokens[account], NFTokens);
}
}
parsePreviousNFTokens(account, NFTokens) {
if (this.previousNFTokens[account] === undefined) {
this.previousNFTokens[account] = [];
}
if (Array.isArray(NFTokens)) {
this.previousNFTokens[account] = lodash_1.default.concat(this.previousNFTokens[account], NFTokens);
}
}
parseNFTokensChanges() {
for (const account of this.affectedAccounts) {
let finalTokens = [];
if (Array.isArray(this.finalNFTokens[account])) {
finalTokens = this.finalNFTokens[account].map((NFToken) => NFToken.NFToken.NFTokenID);
finalTokens = [...new Set(finalTokens)];
}
let previousTokens = [];
if (Array.isArray(this.previousNFTokens[account])) {
previousTokens = this.previousNFTokens[account].map((NFToken) => NFToken.NFToken.NFTokenID);
previousTokens = [...new Set(previousTokens)];
}
const added = lodash_1.default.difference(finalTokens, previousTokens);
const removed = lodash_1.default.difference(previousTokens, finalTokens);
for (const nftokenID of added) {
const uri = this.findNFTokenUri(nftokenID);
this.addChange(account, {
status: "added",
nftokenID,
uri,
});
}
for (const nftokenID of removed) {
const uri = this.findNFTokenUri(nftokenID);
this.addChange(account, {
status: "removed",
nftokenID,
uri,
});
}
}
}
findNFTokenUri(nftokenID) {
for (const affectedNode of this.tx.meta.AffectedNodes) {
const node = affectedNode.CreatedNode || affectedNode.ModifiedNode || affectedNode.DeletedNode;
if (node?.LedgerEntryType === "NFTokenPage") {
if (Array.isArray(node.NewFields?.NFTokens)) {
for (const tokenNode of node.NewFields?.NFTokens) {
if (tokenNode.NFToken.NFTokenID === nftokenID) {
return tokenNode.NFToken.URI;
}
}
}
if (Array.isArray(node.FinalFields?.NFTokens)) {
for (const tokenNode of node.FinalFields?.NFTokens) {
if (tokenNode.NFToken.NFTokenID === nftokenID) {
return tokenNode.NFToken.URI;
}
}
}
if (Array.isArray(node.PreviousFields?.NFTokens)) {
for (const tokenNode of node.PreviousFields?.NFTokens) {
if (tokenNode.NFToken.NFTokenID === nftokenID) {
return tokenNode.NFToken.URI;
}
}
}
}
}
return undefined;
}
parseNFTokensURIChanges() {
const nftokenID = this.tx.NFTokenID;
const nftokenChanges = this.findNFTokenChangedNode(nftokenID);
if (!nftokenChanges) {
return;
}
const [currentTokenNode, previousTokenNode] = nftokenChanges;
const uri = currentTokenNode?.URI;
const previousURI = previousTokenNode?.URI;
if (uri === previousURI) {
return;
}
this.addChange(currentTokenNode.account, {
status: "modified",
nftokenID,
uri,
previousURI,
});
}
findNFTokenChangedNode(nftokenID) {
let currentTokenNode;
let previousTokenNode;
for (const affectedNode of this.tx.meta.AffectedNodes) {
const node = affectedNode.ModifiedNode;
if (node?.LedgerEntryType === "NFTokenPage") {
if (Array.isArray(node.FinalFields?.NFTokens)) {
for (const tokenNode of node.FinalFields?.NFTokens) {
if (tokenNode.NFToken.NFTokenID === nftokenID) {
currentTokenNode = tokenNode.NFToken;
const account = AddressCodec.encodeAccountID(Buffer.from(node?.LedgerIndex.slice(0, 40), "hex"));
currentTokenNode.account = account;
if (currentTokenNode && previousTokenNode) {
return [currentTokenNode, previousTokenNode];
}
}
}
}
if (Array.isArray(node.PreviousFields?.NFTokens)) {
for (const tokenNode of node.PreviousFields?.NFTokens) {
if (tokenNode.NFToken.NFTokenID === nftokenID) {
previousTokenNode = tokenNode.NFToken;
if (currentTokenNode && previousTokenNode) {
return [currentTokenNode, previousTokenNode];
}
}
}
}
}
}
if (!currentTokenNode || !previousTokenNode) {
return undefined;
}
return [currentTokenNode, previousTokenNode];
}
}