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const valuesFor = require('./util').valuesFor
const abi = require('human-standard-token-abi')
const {
multiplyCurrencies,
} = require('./conversion-util')
const selectors = {
getSelectedAddress,
getSelectedIdentity,
getSelectedAccount,
getSelectedToken,
getSelectedTokenExchangeRate,
getTokenExchangeRate,
conversionRateSelector,
transactionsSelector,
accountsWithSendEtherInfoSelector,
getCurrentAccountWithSendEtherInfo,
getGasPrice,
getGasLimit,
getAddressBook,
getSendFrom,
getCurrentCurrency,
getSendAmount,
getSelectedTokenToFiatRate,
getSelectedTokenContract,
autoAddToBetaUI,
getSendMaxModeState,
getCurrentViewContext,
}
module.exports = selectors
function getSelectedAddress (state) {
const selectedAddress = state.metamask.selectedAddress || Object.keys(state.metamask.accounts)[0]
return selectedAddress
}
function getSelectedIdentity (state) {
const selectedAddress = getSelectedAddress(state)
const identities = state.metamask.identities
return identities[selectedAddress]
}
function getSelectedAccount (state) {
const accounts = state.metamask.accounts
const selectedAddress = getSelectedAddress(state)
return accounts[selectedAddress]
}
function getSelectedToken (state) {
const tokens = state.metamask.tokens || []
const selectedTokenAddress = state.metamask.selectedTokenAddress
const selectedToken = tokens.filter(({ address }) => address === selectedTokenAddress)[0]
return selectedToken || null
}
function getSelectedTokenExchangeRate (state) {
const tokenExchangeRates = state.metamask.tokenExchangeRates
const selectedToken = getSelectedToken(state) || {}
const { symbol = '' } = selectedToken
const pair = `${symbol.toLowerCase()}_eth`
const { rate: tokenExchangeRate = 0 } = tokenExchangeRates[pair] || {}
return tokenExchangeRate
}
function getTokenExchangeRate (state, tokenSymbol) {
const pair = `${tokenSymbol.toLowerCase()}_eth`
const tokenExchangeRates = state.metamask.tokenExchangeRates
const { rate: tokenExchangeRate = 0 } = tokenExchangeRates[pair] || {}
return tokenExchangeRate
}
function conversionRateSelector (state) {
return state.metamask.conversionRate
}
function getAddressBook (state) {
return state.metamask.addressBook
}
function accountsWithSendEtherInfoSelector (state) {
const {
accounts,
identities,
} = state.metamask
const accountsWithSendEtherInfo = Object.entries(accounts).map(([key, account]) => {
return Object.assign({}, account, identities[key])
})
return accountsWithSendEtherInfo
}
function getCurrentAccountWithSendEtherInfo (state) {
const currentAddress = getSelectedAddress(state)
const accounts = accountsWithSendEtherInfoSelector(state)
return accounts.find(({ address }) => address === currentAddress)
}
function transactionsSelector (state) {
const { network, selectedTokenAddress } = state.metamask
const unapprovedMsgs = valuesFor(state.metamask.unapprovedMsgs)
const shapeShiftTxList = (network === '1') ? state.metamask.shapeShiftTxList : undefined
const transactions = state.metamask.selectedAddressTxList || []
const txsToRender = !shapeShiftTxList ? transactions.concat(unapprovedMsgs) : transactions.concat(unapprovedMsgs, shapeShiftTxList)
// console.log({txsToRender, selectedTokenAddress})
return selectedTokenAddress
? txsToRender
.filter(({ txParams }) => txParams && txParams.to === selectedTokenAddress)
.sort((a, b) => b.time - a.time)
: txsToRender
.sort((a, b) => b.time - a.time)
}
function getGasPrice (state) {
return state.metamask.send.gasPrice
}
function getGasLimit (state) {
return state.metamask.send.gasLimit
}
function getSendFrom (state) {
return state.metamask.send.from
}
function getSendAmount (state) {
return state.metamask.send.amount
}
function getSendMaxModeState (state) {
return state.metamask.send.maxModeOn
}
function getCurrentCurrency (state) {
return state.metamask.currentCurrency
}
function getSelectedTokenToFiatRate (state) {
const selectedTokenExchangeRate = getSelectedTokenExchangeRate(state)
const conversionRate = conversionRateSelector(state)
const tokenToFiatRate = multiplyCurrencies(
conversionRate,
selectedTokenExchangeRate,
{ toNumericBase: 'dec' }
)
return tokenToFiatRate
}
function getSelectedTokenContract (state) {
const selectedToken = getSelectedToken(state)
return selectedToken
? global.eth.contract(abi).at(selectedToken.address)
: null
}
function autoAddToBetaUI (state) {
const autoAddTransactionThreshold = 12
const autoAddAccountsThreshold = 2
const autoAddTokensThreshold = 1
const numberOfTransactions = state.metamask.selectedAddressTxList.length
const numberOfAccounts = Object.keys(state.metamask.accounts).length
const numberOfTokensAdded = state.metamask.tokens.length
const userPassesThreshold = (numberOfTransactions > autoAddTransactionThreshold) &&
(numberOfAccounts > autoAddAccountsThreshold) &&
(numberOfTokensAdded > autoAddTokensThreshold)
const userIsNotInBeta = !state.metamask.featureFlags.betaUI
return userIsNotInBeta && userPassesThreshold
}
function getCurrentViewContext (state) {
const { currentView = {} } = state.appState
return currentView.context
}
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