1 files changed, 196 insertions, 0 deletions
diff --git a/ui/app/selectors/confirm-transaction.js b/ui/app/selectors/confirm-transaction.js
new file mode 100644
index 000000000..9548cf75e
--- /dev/null
+++ b/ui/app/selectors/confirm-transaction.js
@@ -0,0 +1,196 @@
+import { createSelector } from 'reselect'
+import txHelper from '../../lib/tx-helper'
+import { calcTokenAmount } from '../token-util'
+import { roundExponential } from '../helpers/confirm-transaction/util'
+
+const unapprovedTxsSelector = state => state.metamask.unapprovedTxs
+const unapprovedMsgsSelector = state => state.metamask.unapprovedMsgs
+const unapprovedPersonalMsgsSelector = state => state.metamask.unapprovedPersonalMsgs
+const unapprovedTypedMessagesSelector = state => state.metamask.unapprovedTypedMessages
+const networkSelector = state => state.metamask.network
+
+export const unconfirmedTransactionsListSelector = createSelector(
+  unapprovedTxsSelector,
+  unapprovedMsgsSelector,
+  unapprovedPersonalMsgsSelector,
+  unapprovedTypedMessagesSelector,
+  networkSelector,
+  (
+    unapprovedTxs = {},
+    unapprovedMsgs = {},
+    unapprovedPersonalMsgs = {},
+    unapprovedTypedMessages = {},
+    network
+  ) => txHelper(
+    unapprovedTxs,
+    unapprovedMsgs,
+    unapprovedPersonalMsgs,
+    unapprovedTypedMessages,
+    network
+  ) || []
+)
+
+export const unconfirmedTransactionsHashSelector = createSelector(
+  unapprovedTxsSelector,
+  unapprovedMsgsSelector,
+  unapprovedPersonalMsgsSelector,
+  unapprovedTypedMessagesSelector,
+  networkSelector,
+  (
+    unapprovedTxs = {},
+    unapprovedMsgs = {},
+    unapprovedPersonalMsgs = {},
+    unapprovedTypedMessages = {},
+    network
+  ) => {
+    const filteredUnapprovedTxs = Object.keys(unapprovedTxs).reduce((acc, address) => {
+      const { metamaskNetworkId } = unapprovedTxs[address]
+      const transactions = { ...acc }
+
+      if (metamaskNetworkId === network) {
+        transactions[address] = unapprovedTxs[address]
+      }
+
+      return transactions
+    }, {})
+
+    return {
+      ...filteredUnapprovedTxs,
+      ...unapprovedMsgs,
+      ...unapprovedPersonalMsgs,
+      ...unapprovedTypedMessages,
+    }
+  }
+)
+
+const unapprovedMsgCountSelector = state => state.metamask.unapprovedMsgCount
+const unapprovedPersonalMsgCountSelector = state => state.metamask.unapprovedPersonalMsgCount
+const unapprovedTypedMessagesCountSelector = state => state.metamask.unapprovedTypedMessagesCount
+
+export const unconfirmedTransactionsCountSelector = createSelector(
+  unapprovedTxsSelector,
+  unapprovedMsgCountSelector,
+  unapprovedPersonalMsgCountSelector,
+  unapprovedTypedMessagesCountSelector,
+  networkSelector,
+  (
+    unapprovedTxs = {},
+    unapprovedMsgCount = 0,
+    unapprovedPersonalMsgCount = 0,
+    unapprovedTypedMessagesCount = 0,
+    network
+  ) => {
+    const filteredUnapprovedTxIds = Object.keys(unapprovedTxs).filter(txId => {
+      const { metamaskNetworkId } = unapprovedTxs[txId]
+      return metamaskNetworkId === network
+    })
+
+    return filteredUnapprovedTxIds.length + unapprovedTypedMessagesCount + unapprovedMsgCount +
+      unapprovedPersonalMsgCount
+  }
+)
+
+
+export const currentCurrencySelector = state => state.metamask.currentCurrency
+export const conversionRateSelector = state => state.metamask.conversionRate
+
+const txDataSelector = state => state.confirmTransaction.txData
+const tokenDataSelector = state => state.confirmTransaction.tokenData
+const tokenPropsSelector = state => state.confirmTransaction.tokenProps
+
+const contractExchangeRatesSelector = state => state.metamask.contractExchangeRates
+
+const tokenDecimalsSelector = createSelector(
+  tokenPropsSelector,
+  tokenProps => tokenProps && tokenProps.tokenDecimals
+)
+
+const tokenDataParamsSelector = createSelector(
+  tokenDataSelector,
+  tokenData => tokenData && tokenData.params || []
+)
+
+const txParamsSelector = createSelector(
+  txDataSelector,
+  txData => txData && txData.txParams || {}
+)
+
+export const tokenAddressSelector = createSelector(
+  txParamsSelector,
+  txParams => txParams && txParams.to
+)
+
+const TOKEN_PARAM_SPENDER = '_spender'
+const TOKEN_PARAM_TO = '_to'
+const TOKEN_PARAM_VALUE = '_value'
+
+export const tokenAmountAndToAddressSelector = createSelector(
+  tokenDataParamsSelector,
+  params => {
+    let toAddress = ''
+    let tokenAmount = 0
+
+    if (params && params.length) {
+      const toParam = params.find(param => param.name === TOKEN_PARAM_TO)
+      const valueParam = params.find(param => param.name === TOKEN_PARAM_VALUE)
+      toAddress = toParam ? toParam.value : params[0].value
+      const value = valueParam ? Number(valueParam.value) : Number(params[1].value)
+      tokenAmount = roundExponential(value)
+    }
+
+    return {
+      toAddress,
+      tokenAmount,
+    }
+  }
+)
+
+export const approveTokenAmountAndToAddressSelector = createSelector(
+  tokenDataParamsSelector,
+  params => {
+    let toAddress = ''
+    let tokenAmount = 0
+
+    if (params && params.length) {
+      toAddress = params.find(param => param.name === TOKEN_PARAM_SPENDER).value
+      const value = Number(params.find(param => param.name === TOKEN_PARAM_VALUE).value)
+      tokenAmount = roundExponential(value)
+    }
+
+    return {
+      toAddress,
+      tokenAmount,
+    }
+  }
+)
+
+export const sendTokenTokenAmountAndToAddressSelector = createSelector(
+  tokenDataParamsSelector,
+  tokenDecimalsSelector,
+  (params, tokenDecimals) => {
+    let toAddress = ''
+    let tokenAmount = 0
+
+    if (params && params.length) {
+      toAddress = params.find(param => param.name === TOKEN_PARAM_TO).value
+      let value = Number(params.find(param => param.name === TOKEN_PARAM_VALUE).value)
+
+      if (tokenDecimals) {
+        value = calcTokenAmount(value, tokenDecimals)
+      }
+
+      tokenAmount = roundExponential(value)
+    }
+
+    return {
+      toAddress,
+      tokenAmount,
+    }
+  }
+)
+
+export const contractExchangeRateSelector = createSelector(
+  contractExchangeRatesSelector,
+  tokenAddressSelector,
+  (contractExchangeRates, tokenAddress) => contractExchangeRates[tokenAddress]
+)