@bithomp/xrpl-api/lib/parse/outcome/orderbook_quality.js

A Bithomp JavaScript/TypeScript library for interacting with the XRP Ledger

"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
exports.parseOrderbookQuality = parseOrderbookQuality;
const assert = __importStar(require("assert"));
const bignumber_js_1 = __importDefault(require("bignumber.js"));
const client_1 = require("../../client");
function adjustQualityForXRP(quality, takerGetsCurrency, takerPaysCurrency) {
    const numeratorShift = takerPaysCurrency === (0, client_1.getNativeCurrency)() ? -6 : 0;
    const denominatorShift = takerGetsCurrency === (0, client_1.getNativeCurrency)() ? -6 : 0;
    const shift = numeratorShift - denominatorShift;
    return shift === 0 ? new bignumber_js_1.default(quality).toString() : new bignumber_js_1.default(quality).shiftedBy(shift).toString();
}
function parseOrderbookQuality(qualityHex, takerGetsCurrency, takerPaysCurrency) {
    assert.ok(qualityHex.length === 16);
    const mantissa = new bignumber_js_1.default(qualityHex.substring(2), 16);
    const offset = parseInt(qualityHex.substring(0, 2), 16) - 100;
    const quality = mantissa.toString() + "e" + offset.toString();
    return adjustQualityForXRP(quality, takerGetsCurrency, takerPaysCurrency);
}