mirror of
https://github.com/kremalicious/metamask-extension.git
synced 2024-11-30 08:09:15 +01:00
374 lines
8.9 KiB
JavaScript
374 lines
8.9 KiB
JavaScript
import { addHexPrefix } from '../../app/scripts/lib/util';
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import {
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conversionUtil,
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conversionGreaterThan,
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} from '../helpers/utils/conversion-util';
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import { formatCurrency } from '../helpers/utils/confirm-tx.util';
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import { decEthToConvertedCurrency as ethTotalToConvertedCurrency } from '../helpers/utils/conversions.util';
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import { formatETHFee } from '../helpers/utils/formatters';
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import { calcGasTotal } from '../pages/send/send.utils';
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import { GAS_ESTIMATE_TYPES } from '../helpers/constants/common';
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import {
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getCurrentCurrency,
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getIsMainnet,
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getPreferences,
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getGasPrice,
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} from '.';
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const NUMBER_OF_DECIMALS_SM_BTNS = 5;
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export function getCustomGasLimit(state) {
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return state.gas.customData.limit;
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}
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export function getCustomGasPrice(state) {
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return state.gas.customData.price;
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}
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export function getBasicGasEstimateLoadingStatus(state) {
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return state.gas.basicEstimateStatus === 'LOADING';
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}
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export function getAveragePriceEstimateInHexWEI(state) {
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const averagePriceEstimate = state.gas.basicEstimates
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? state.gas.basicEstimates.average
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: '0x0';
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return getGasPriceInHexWei(averagePriceEstimate);
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}
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export function getFastPriceEstimateInHexWEI(state) {
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const fastPriceEstimate = getFastPriceEstimate(state);
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return getGasPriceInHexWei(fastPriceEstimate || '0x0');
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}
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export function getDefaultActiveButtonIndex(
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gasButtonInfo,
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customGasPriceInHex,
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gasPrice,
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) {
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return gasButtonInfo
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.map(({ priceInHexWei }) => priceInHexWei)
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.lastIndexOf(addHexPrefix(customGasPriceInHex || gasPrice));
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}
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export function getSafeLowEstimate(state) {
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const {
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gas: {
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basicEstimates: { safeLow },
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},
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} = state;
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return safeLow;
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}
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export function getFastPriceEstimate(state) {
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const {
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gas: {
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basicEstimates: { fast },
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},
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} = state;
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return fast;
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}
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export function isCustomPriceSafe(state) {
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const safeLow = getSafeLowEstimate(state);
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const customGasPrice = getCustomGasPrice(state);
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if (!customGasPrice) {
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return true;
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}
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if (!safeLow) {
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return false;
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}
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const customPriceSafe = conversionGreaterThan(
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{
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value: customGasPrice,
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fromNumericBase: 'hex',
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fromDenomination: 'WEI',
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toDenomination: 'GWEI',
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},
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{ value: safeLow, fromNumericBase: 'dec' },
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);
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return customPriceSafe;
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}
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export function isCustomPriceExcessive(state, checkSend = false) {
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const customPrice = checkSend ? getGasPrice(state) : getCustomGasPrice(state);
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const fastPrice = getFastPriceEstimate(state);
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if (!customPrice || !fastPrice) {
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return false;
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}
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// Custom gas should be considered excessive when it is 1.5 times greater than the fastest estimate.
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const customPriceExcessive = conversionGreaterThan(
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{
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value: customPrice,
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fromNumericBase: 'hex',
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fromDenomination: 'WEI',
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toDenomination: 'GWEI',
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},
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{
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fromNumericBase: 'dec',
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value: Math.floor(fastPrice * 1.5),
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},
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);
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return customPriceExcessive;
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}
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export function basicPriceEstimateToETHTotal(
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estimate,
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gasLimit,
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numberOfDecimals = 9,
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) {
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return conversionUtil(calcGasTotal(gasLimit, estimate), {
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fromNumericBase: 'hex',
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toNumericBase: 'dec',
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fromDenomination: 'GWEI',
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numberOfDecimals,
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});
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}
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export function getRenderableEthFee(
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estimate,
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gasLimit,
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numberOfDecimals = 9,
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nativeCurrency = 'ETH',
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) {
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const value = conversionUtil(estimate, {
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fromNumericBase: 'dec',
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toNumericBase: 'hex',
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});
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const fee = basicPriceEstimateToETHTotal(value, gasLimit, numberOfDecimals);
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return formatETHFee(fee, nativeCurrency);
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}
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export function getRenderableConvertedCurrencyFee(
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estimate,
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gasLimit,
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convertedCurrency,
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conversionRate,
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) {
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const value = conversionUtil(estimate, {
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fromNumericBase: 'dec',
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toNumericBase: 'hex',
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});
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const fee = basicPriceEstimateToETHTotal(value, gasLimit);
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const feeInCurrency = ethTotalToConvertedCurrency(
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fee,
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convertedCurrency,
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conversionRate,
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);
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return formatCurrency(feeInCurrency, convertedCurrency);
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}
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export function priceEstimateToWei(priceEstimate) {
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return conversionUtil(priceEstimate, {
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fromNumericBase: 'hex',
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toNumericBase: 'hex',
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fromDenomination: 'GWEI',
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toDenomination: 'WEI',
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numberOfDecimals: 9,
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});
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}
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export function getGasPriceInHexWei(price) {
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const value = conversionUtil(price, {
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fromNumericBase: 'dec',
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toNumericBase: 'hex',
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});
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return addHexPrefix(priceEstimateToWei(value));
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}
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export function getRenderableGasButtonData(
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estimates,
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gasLimit,
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showFiat,
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conversionRate,
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currentCurrency,
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nativeCurrency,
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) {
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const { safeLow, average, fast } = estimates;
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const slowEstimateData = {
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gasEstimateType: GAS_ESTIMATE_TYPES.SLOW,
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feeInPrimaryCurrency: getRenderableEthFee(
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safeLow,
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gasLimit,
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9,
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nativeCurrency,
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),
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feeInSecondaryCurrency: showFiat
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? getRenderableConvertedCurrencyFee(
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safeLow,
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gasLimit,
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currentCurrency,
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conversionRate,
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)
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: '',
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priceInHexWei: getGasPriceInHexWei(safeLow),
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};
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const averageEstimateData = {
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gasEstimateType: GAS_ESTIMATE_TYPES.AVERAGE,
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feeInPrimaryCurrency: getRenderableEthFee(
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average,
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gasLimit,
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9,
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nativeCurrency,
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),
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feeInSecondaryCurrency: showFiat
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? getRenderableConvertedCurrencyFee(
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average,
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gasLimit,
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currentCurrency,
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conversionRate,
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)
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: '',
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priceInHexWei: getGasPriceInHexWei(average),
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};
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const fastEstimateData = {
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gasEstimateType: GAS_ESTIMATE_TYPES.FAST,
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feeInPrimaryCurrency: getRenderableEthFee(
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fast,
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gasLimit,
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9,
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nativeCurrency,
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),
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feeInSecondaryCurrency: showFiat
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? getRenderableConvertedCurrencyFee(
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fast,
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gasLimit,
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currentCurrency,
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conversionRate,
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)
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: '',
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priceInHexWei: getGasPriceInHexWei(fast),
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};
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return {
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slowEstimateData,
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averageEstimateData,
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fastEstimateData,
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};
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}
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export function getRenderableBasicEstimateData(state, gasLimit) {
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if (getBasicGasEstimateLoadingStatus(state)) {
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return [];
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}
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const { showFiatInTestnets } = getPreferences(state);
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const isMainnet = getIsMainnet(state);
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const showFiat = isMainnet || Boolean(showFiatInTestnets);
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const { conversionRate } = state.metamask;
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const currentCurrency = getCurrentCurrency(state);
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const {
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slowEstimateData,
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averageEstimateData,
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fastEstimateData,
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} = getRenderableGasButtonData(
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state.gas.basicEstimates,
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gasLimit,
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showFiat,
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conversionRate,
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currentCurrency,
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);
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return [slowEstimateData, averageEstimateData, fastEstimateData];
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}
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export function getRenderableEstimateDataForSmallButtonsFromGWEI(state) {
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if (getBasicGasEstimateLoadingStatus(state)) {
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return [];
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}
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const { showFiatInTestnets } = getPreferences(state);
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const isMainnet = getIsMainnet(state);
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const showFiat = isMainnet || Boolean(showFiatInTestnets);
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const gasLimit =
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state.metamask.send.gasLimit || getCustomGasLimit(state) || '0x5208';
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const { conversionRate } = state.metamask;
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const currentCurrency = getCurrentCurrency(state);
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const {
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gas: {
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basicEstimates: { safeLow, average, fast },
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},
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} = state;
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return [
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{
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gasEstimateType: GAS_ESTIMATE_TYPES.SLOW,
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feeInSecondaryCurrency: showFiat
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? getRenderableConvertedCurrencyFee(
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safeLow,
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gasLimit,
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currentCurrency,
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conversionRate,
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)
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: '',
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feeInPrimaryCurrency: getRenderableEthFee(
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safeLow,
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gasLimit,
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NUMBER_OF_DECIMALS_SM_BTNS,
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),
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priceInHexWei: getGasPriceInHexWei(safeLow, true),
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},
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{
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gasEstimateType: GAS_ESTIMATE_TYPES.AVERAGE,
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feeInSecondaryCurrency: showFiat
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? getRenderableConvertedCurrencyFee(
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average,
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gasLimit,
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currentCurrency,
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conversionRate,
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)
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: '',
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feeInPrimaryCurrency: getRenderableEthFee(
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average,
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gasLimit,
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NUMBER_OF_DECIMALS_SM_BTNS,
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),
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priceInHexWei: getGasPriceInHexWei(average, true),
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},
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{
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gasEstimateType: GAS_ESTIMATE_TYPES.FAST,
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feeInSecondaryCurrency: showFiat
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? getRenderableConvertedCurrencyFee(
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fast,
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gasLimit,
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currentCurrency,
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conversionRate,
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)
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: '',
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feeInPrimaryCurrency: getRenderableEthFee(
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fast,
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gasLimit,
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NUMBER_OF_DECIMALS_SM_BTNS,
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),
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priceInHexWei: getGasPriceInHexWei(fast, true),
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},
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];
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}
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export function getIsEthGasPriceFetched(state) {
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const gasState = state.gas;
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return Boolean(
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gasState.estimateSource === 'eth_gasprice' &&
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gasState.basicEstimateStatus === 'READY' &&
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getIsMainnet(state),
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);
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}
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export function getNoGasPriceFetched(state) {
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const gasState = state.gas;
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return Boolean(gasState.basicEstimateStatus === 'FAILED');
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}
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