import { pipe, partialRight } from 'ramda' import { conversionUtil, multiplyCurrencies, } from '../conversion-util' import { getCurrentCurrency, } from '../selectors' import { formatCurrency, } from '../helpers/confirm-transaction/util' import { decEthToConvertedCurrency as ethTotalToConvertedCurrency, } from '../helpers/conversions.util' import { formatETHFee, } from '../helpers/formatters' import { calcGasTotal, } from '../components/send/send.utils' import { addHexPrefix } from 'ethereumjs-util' const selectors = { formatTimeEstimate, getAveragePriceEstimateInHexWEI, getFastPriceEstimateInHexWEI, getBasicGasEstimateLoadingStatus, getBasicGasEstimateBlockTime, getCustomGasErrors, getCustomGasLimit, getCustomGasPrice, getCustomGasTotal, getDefaultActiveButtonIndex, getEstimatedGasPrices, getEstimatedGasTimes, getGasEstimatesLoadingStatus, getPriceAndTimeEstimates, getRenderableBasicEstimateData, getRenderableEstimateDataForSmallButtonsFromGWEI, priceEstimateToWei, } module.exports = selectors const NUMBER_OF_DECIMALS_SM_BTNS = 5 function getCustomGasErrors (state) { return state.gas.errors } function getCustomGasLimit (state) { return state.gas.customData.limit } function getCustomGasPrice (state) { return state.gas.customData.price } function getCustomGasTotal (state) { return state.gas.customData.total } function getBasicGasEstimateLoadingStatus (state) { return state.gas.basicEstimateIsLoading } function getGasEstimatesLoadingStatus (state) { return state.gas.gasEstimatesLoading } function getPriceAndTimeEstimates (state) { return state.gas.priceAndTimeEstimates } function getEstimatedGasPrices (state) { return getPriceAndTimeEstimates(state).map(({ gasprice }) => gasprice) } function getEstimatedGasTimes (state) { return getPriceAndTimeEstimates(state).map(({ expectedTime }) => expectedTime) } function getAveragePriceEstimateInHexWEI (state) { const averagePriceEstimate = state.gas.basicEstimates.average return getGasPriceInHexWei(averagePriceEstimate || '0x0') } function getFastPriceEstimateInHexWEI (state) { const fastPriceEstimate = state.gas.basicEstimates.fast return getGasPriceInHexWei(fastPriceEstimate || '0x0') } function getDefaultActiveButtonIndex (gasButtonInfo, customGasPriceInHex, gasPrice) { return gasButtonInfo.findIndex(({ priceInHexWei }) => { return priceInHexWei === addHexPrefix(customGasPriceInHex || gasPrice) }) } function getBasicGasEstimateBlockTime (state) { return state.gas.basicEstimates.blockTime } function basicPriceEstimateToETHTotal (estimate, gasLimit, numberOfDecimals = 9) { return conversionUtil(calcGasTotal(gasLimit, estimate), { fromNumericBase: 'hex', toNumericBase: 'dec', fromDenomination: 'GWEI', numberOfDecimals, }) } function getRenderableEthFee (estimate, gasLimit, numberOfDecimals = 9) { return pipe( x => conversionUtil(x, { fromNumericBase: 'dec', toNumericBase: 'hex' }), partialRight(basicPriceEstimateToETHTotal, [gasLimit, numberOfDecimals]), formatETHFee )(estimate, gasLimit) } function getRenderableConvertedCurrencyFee (estimate, gasLimit, convertedCurrency, conversionRate) { return pipe( x => conversionUtil(x, { fromNumericBase: 'dec', toNumericBase: 'hex' }), partialRight(basicPriceEstimateToETHTotal, [gasLimit]), partialRight(ethTotalToConvertedCurrency, [convertedCurrency, conversionRate]), partialRight(formatCurrency, [convertedCurrency]) )(estimate, gasLimit, convertedCurrency, conversionRate) } function getTimeEstimateInSeconds (blockWaitEstimate) { return multiplyCurrencies(blockWaitEstimate, 60, { toNumericBase: 'dec', multiplicandBase: 10, multiplierBase: 10, numberOfDecimals: 1, }) } function formatTimeEstimate (totalSeconds, greaterThanMax, lessThanMin) { const minutes = Math.floor(totalSeconds / 60) const seconds = Math.floor(totalSeconds % 60) if (!minutes && !seconds) { return '...' } let symbol = '~' if (greaterThanMax) { symbol = '< ' } else if (lessThanMin) { symbol = '> ' } const formattedMin = `${minutes ? minutes + ' min' : ''}` const formattedSec = `${seconds ? seconds + ' sec' : ''}` const formattedCombined = formattedMin && formattedSec ? `${symbol}${formattedMin} ${formattedSec}` : symbol + [formattedMin, formattedSec].find(t => t) return formattedCombined } function getRenderableTimeEstimate (blockWaitEstimate) { return pipe( getTimeEstimateInSeconds, formatTimeEstimate )(blockWaitEstimate) } function priceEstimateToWei (priceEstimate) { return conversionUtil(priceEstimate, { fromNumericBase: 'hex', toNumericBase: 'hex', fromDenomination: 'GWEI', toDenomination: 'WEI', numberOfDecimals: 9, }) } function getGasPriceInHexWei (price) { return pipe( x => conversionUtil(x, { fromNumericBase: 'dec', toNumericBase: 'hex' }), priceEstimateToWei, addHexPrefix )(price) } function getRenderableBasicEstimateData (state) { if (getBasicGasEstimateLoadingStatus(state)) { return [] } const gasLimit = state.metamask.send.gasLimit || getCustomGasLimit(state) const conversionRate = state.metamask.conversionRate const currentCurrency = getCurrentCurrency(state) const { gas: { basicEstimates: { safeLow, fast, fastest, safeLowWait, fastestWait, fastWait, }, }, } = state return [ { labelKey: 'fastest', feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(fastest, gasLimit, currentCurrency, conversionRate), feeInSecondaryCurrency: getRenderableEthFee(fastest, gasLimit), timeEstimate: fastestWait && getRenderableTimeEstimate(fastestWait), priceInHexWei: getGasPriceInHexWei(fastest), }, { labelKey: 'fast', feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(fast, gasLimit, currentCurrency, conversionRate), feeInSecondaryCurrency: getRenderableEthFee(fast, gasLimit), timeEstimate: fastWait && getRenderableTimeEstimate(fastWait), priceInHexWei: getGasPriceInHexWei(fast), }, { labelKey: 'slow', feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(safeLow, gasLimit, currentCurrency, conversionRate), feeInSecondaryCurrency: getRenderableEthFee(safeLow, gasLimit), timeEstimate: safeLowWait && getRenderableTimeEstimate(safeLowWait), priceInHexWei: getGasPriceInHexWei(safeLow), }, ] } function getRenderableEstimateDataForSmallButtonsFromGWEI (state) { if (getBasicGasEstimateLoadingStatus(state)) { return [] } const gasLimit = state.metamask.send.gasLimit || getCustomGasLimit(state) const conversionRate = state.metamask.conversionRate const currentCurrency = getCurrentCurrency(state) const { gas: { basicEstimates: { safeLow, fast, fastest, }, }, } = state return [ { labelKey: 'fastest', feeInSecondaryCurrency: getRenderableConvertedCurrencyFee(fastest, gasLimit, currentCurrency, conversionRate), feeInPrimaryCurrency: getRenderableEthFee(fastest, gasLimit, NUMBER_OF_DECIMALS_SM_BTNS, true), priceInHexWei: getGasPriceInHexWei(fastest, true), }, { labelKey: 'fast', feeInSecondaryCurrency: getRenderableConvertedCurrencyFee(fast, gasLimit, currentCurrency, conversionRate), feeInPrimaryCurrency: getRenderableEthFee(fast, gasLimit, NUMBER_OF_DECIMALS_SM_BTNS, true), priceInHexWei: getGasPriceInHexWei(fast, true), }, { labelKey: 'slow', feeInSecondaryCurrency: getRenderableConvertedCurrencyFee(safeLow, gasLimit, currentCurrency, conversionRate), feeInPrimaryCurrency: getRenderableEthFee(safeLow, gasLimit, NUMBER_OF_DECIMALS_SM_BTNS, true), priceInHexWei: getGasPriceInHexWei(safeLow, true), }, ] }