@ledgerhq/coin-hedera/lib/logic/estimateFees.js

Ledger Hedera Coin integration

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.estimateFees = void 0;
const bignumber_js_1 = __importDefault(require("bignumber.js"));
const constants_1 = require("../constants");
const api_1 = require("../network/api");
const utils_1 = require("./utils");
const estimateContractCallFees = async (txIntent) => {
    let tinybars = new bignumber_js_1.default(0);
    let gas = new bignumber_js_1.default(0);
    const tokenEvmAddress = "assetReference" in txIntent.asset ? txIntent.asset.assetReference : null;
    const [senderEvmAddress, recipientEvmAddress] = await Promise.all([
        (0, utils_1.toEVMAddress)(txIntent.sender),
        (0, utils_1.toEVMAddress)(txIntent.recipient),
    ]);
    if (!tokenEvmAddress || !senderEvmAddress || !recipientEvmAddress) {
        return {
            tinybars,
        };
    }
    try {
        const [networkFees, gasLimit] = await Promise.all([
            api_1.apiClient.getNetworkFees(),
            api_1.apiClient.estimateContractCallGas(senderEvmAddress, recipientEvmAddress, tokenEvmAddress, txIntent.amount),
        ]);
        const contractCallFees = networkFees.fees.find(fee => fee.transaction_type === constants_1.HEDERA_OPERATION_TYPES.ContractCall);
        const gasTinybarRate = new bignumber_js_1.default(contractCallFees?.gas ?? constants_1.DEFAULT_GAS_PRICE_TINYBARS);
        gas = gasLimit.multipliedBy(constants_1.ESTIMATED_GAS_SAFETY_RATE).integerValue(bignumber_js_1.default.ROUND_CEIL);
        tinybars = gas.multipliedBy(gasTinybarRate).integerValue(bignumber_js_1.default.ROUND_CEIL);
    }
    catch {
        const gasTinybarRate = constants_1.DEFAULT_GAS_PRICE_TINYBARS;
        gas = constants_1.DEFAULT_GAS_LIMIT;
        tinybars = gas.multipliedBy(gasTinybarRate).integerValue(bignumber_js_1.default.ROUND_CEIL);
    }
    return {
        tinybars,
        gas,
    };
};
const estimateStandardFees = async (currency, operationType) => {
    let tinybars;
    const usdRate = await (0, utils_1.getCurrencyToUSDRate)(currency).catch(() => null);
    if (usdRate) {
        tinybars = new bignumber_js_1.default(constants_1.BASE_USD_FEE_BY_OPERATION_TYPE[operationType])
            .dividedBy(new bignumber_js_1.default(usdRate))
            .integerValue(bignumber_js_1.default.ROUND_CEIL)
            .multipliedBy(constants_1.ESTIMATED_FEE_SAFETY_RATE);
    }
    else {
        tinybars = new bignumber_js_1.default(constants_1.DEFAULT_TINYBAR_FEE).multipliedBy(constants_1.ESTIMATED_FEE_SAFETY_RATE);
    }
    return {
        tinybars,
    };
};
const estimateFees = async (params) => {
    if (params.operationType === constants_1.HEDERA_OPERATION_TYPES.ContractCall) {
        return estimateContractCallFees(params.txIntent);
    }
    return estimateStandardFees(params.currency, params.operationType);
};
exports.estimateFees = estimateFees;
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