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import { pipe, partialRight } from 'ramda'
import {
getConversionRate,
getGasLimit,
} from '../components/send/send.selectors'
import {
conversionUtil,
multiplyCurrencies,
} from '../conversion-util'
import {
getCurrentCurrency,
} from '../selectors'
import {
formatCurrency,
} from '../helpers/confirm-transaction/util'
import {
calcGasTotal,
} from '../components/send/send.utils'
import { addHexPrefix } from 'ethereumjs-util'
const selectors = {
getCustomGasErrors,
getCustomGasLimit,
getCustomGasPrice,
getCustomGasTotal,
getRenderableBasicEstimateData,
getBasicGasEstimateLoadingStatus,
}
module.exports = selectors
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 apiEstimateModifiedToGWEI (estimate) {
return multiplyCurrencies(estimate, 0.10, {
toNumericBase: 'hex',
multiplicandBase: 10,
multiplierBase: 10,
numberOfDecimals: 9,
})
}
function basicPriceEstimateToETHTotal (estimate, gasLimit) {
return conversionUtil(calcGasTotal(gasLimit, estimate), {
fromNumericBase: 'hex',
toNumericBase: 'dec',
fromDenomination: 'GWEI',
numberOfDecimals: 9,
})
}
function ethTotalToConvertedCurrency (ethTotal, convertedCurrency, conversionRate) {
return conversionUtil(ethTotal, {
fromNumericBase: 'dec',
toNumericBase: 'dec',
fromCurrency: 'ETH',
toCurrency: convertedCurrency,
numberOfDecimals: 2,
conversionRate,
})
}
function formatETHFee (ethFee) {
return ethFee + ' ETH'
}
function getRenderableEthFee (estimate, gasLimit) {
return pipe(
apiEstimateModifiedToGWEI,
partialRight(basicPriceEstimateToETHTotal, [gasLimit]),
formatETHFee
)(estimate, gasLimit)
}
function getRenderableConvertedCurrencyFee (estimate, gasLimit, convertedCurrency, conversionRate) {
return pipe(
apiEstimateModifiedToGWEI,
partialRight(basicPriceEstimateToETHTotal, [gasLimit]),
partialRight(ethTotalToConvertedCurrency, [convertedCurrency, conversionRate]),
partialRight(formatCurrency, [convertedCurrency])
)(estimate, gasLimit, convertedCurrency, conversionRate)
}
function getTimeEstimateInSeconds (blockWaitEstimate, currentBlockTime) {
return multiplyCurrencies(blockWaitEstimate, currentBlockTime, {
toNumericBase: 'dec',
multiplicandBase: 10,
multiplierBase: 10,
numberOfDecimals: 1,
})
}
function formatTimeEstimate (totalSeconds) {
const minutes = Math.floor(totalSeconds / 60)
const seconds = Math.floor(totalSeconds % 60)
const formattedMin = `${minutes ? minutes + ' min' : ''}`
const formattedSec = `${seconds ? seconds + ' sec' : ''}`
const formattedCombined = formattedMin && formattedSec
? `~${formattedMin} ${formattedSec}`
: '~' + [formattedMin, formattedSec].find(t => t)
return formattedCombined
}
function getRenderableTimeEstimate (blockWaitEstimate, currentBlockTime) {
return pipe(
getTimeEstimateInSeconds,
formatTimeEstimate
)(blockWaitEstimate, currentBlockTime)
}
function priceEstimateToWei (priceEstimate) {
return conversionUtil(priceEstimate, {
fromNumericBase: 'hex',
toNumericBase: 'hex',
fromDenomination: 'GWEI',
toDenomination: 'WEI',
numberOfDecimals: 9,
})
}
function getGasPriceInHexWei (price) {
return pipe(
apiEstimateModifiedToGWEI,
priceEstimateToWei,
addHexPrefix
)(price)
}
function getRenderableBasicEstimateData (state) {
if (getBasicGasEstimateLoadingStatus(state)) {
return []
}
const gasLimit = getGasLimit(state)
const conversionRate = getConversionRate(state)
const currentCurrency = getCurrentCurrency(state)
const {
gas: {
basicEstimates: {
safeLow,
average,
fast,
blockTime,
safeLowWait,
avgWait,
fastWait,
},
},
} = state
return [
{
feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(fast, gasLimit, currentCurrency, conversionRate),
feeInSecondaryCurrency: getRenderableEthFee(fast, gasLimit),
timeEstimate: getRenderableTimeEstimate(fastWait, blockTime),
priceInHexWei: getGasPriceInHexWei(fast),
},
{
feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(average, gasLimit, currentCurrency, conversionRate),
feeInSecondaryCurrency: getRenderableEthFee(average, gasLimit),
timeEstimate: getRenderableTimeEstimate(avgWait, blockTime),
priceInHexWei: getGasPriceInHexWei(average),
},
{
feeInPrimaryCurrency: getRenderableConvertedCurrencyFee(safeLow, gasLimit, currentCurrency, conversionRate),
feeInSecondaryCurrency: getRenderableEthFee(safeLow, gasLimit),
timeEstimate: getRenderableTimeEstimate(safeLowWait, blockTime),
priceInHexWei: getGasPriceInHexWei(safeLow),
},
]
}
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