@lifi/sdk/src/_cjs/core/stepComparison.js

LI.FI Any-to-Any Cross-Chain-Swap SDK

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.stepComparison = void 0;
const constants_js_1 = require("../errors/constants.js");
const errors_js_1 = require("../errors/errors.js");
const utils_js_1 = require("./utils.js");
const stepComparison = async (statusManager, oldStep, newStep, allowUserInteraction, executionOptions) => {
    if ((0, utils_js_1.checkStepSlippageThreshold)(oldStep, newStep)) {
        return statusManager.updateStepInRoute(newStep);
    }
    let allowStepUpdate;
    if (allowUserInteraction) {
        allowStepUpdate = await executionOptions?.acceptExchangeRateUpdateHook?.({
            oldToAmount: oldStep.estimate.toAmount,
            newToAmount: newStep.estimate.toAmount,
            toToken: newStep.action.toToken,
        });
    }
    if (!allowStepUpdate) {
        throw new errors_js_1.TransactionError(constants_js_1.LiFiErrorCode.ExchangeRateUpdateCanceled, 'Exchange rate has changed!\nTransaction was not sent, your funds are still in your wallet.\nThe exchange rate has changed and the previous estimation can not be fulfilled due to value loss.');
    }
    return statusManager.updateStepInRoute(newStep);
};
exports.stepComparison = stepComparison;
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