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const Component = require('react').Component
const connect = require('../../metamask-connect')
const h = require('react-hyperscript')
const clone = require('clone')
const abi = require('human-standard-token-abi')
const abiDecoder = require('abi-decoder')
abiDecoder.addABI(abi)
const inherits = require('util').inherits
const actions = require('../../actions')
const util = require('../../util')
const ConfirmSendEther = require('./confirm-send-ether')
const ConfirmSendToken = require('./confirm-send-token')
const ConfirmDeployContract = require('./confirm-deploy-contract')
const TX_TYPES = {
DEPLOY_CONTRACT: 'deploy_contract',
SEND_ETHER: 'send_ether',
SEND_TOKEN: 'send_token',
}
module.exports = connect(mapStateToProps, mapDispatchToProps)(PendingTx)
function mapStateToProps (state) {
const {
conversionRate,
identities,
} = state.metamask
const accounts = state.metamask.accounts
const selectedAddress = state.metamask.selectedAddress || Object.keys(accounts)[0]
return {
conversionRate,
identities,
selectedAddress,
}
}
function mapDispatchToProps (dispatch) {
return {
backToAccountDetail: address => dispatch(actions.backToAccountDetail(address)),
cancelTransaction: ({ id }) => dispatch(actions.cancelTx({ id })),
}
}
inherits(PendingTx, Component)
function PendingTx () {
Component.call(this)
this.state = {
isFetching: true,
transactionType: '',
tokenAddress: '',
tokenSymbol: '',
tokenDecimals: '',
}
}
PendingTx.prototype.componentWillMount = async function () {
const txMeta = this.gatherTxMeta()
const txParams = txMeta.txParams || {}
if (!txParams.to) {
return this.setState({
transactionType: TX_TYPES.DEPLOY_CONTRACT,
isFetching: false,
})
}
// inspect tx data for supported special confirmation screens
let isTokenTransaction = false
if (txParams.data) {
const tokenData = abiDecoder.decodeMethod(txParams.data)
const { name: tokenMethodName } = tokenData || {}
isTokenTransaction = (tokenMethodName === 'transfer')
}
if (isTokenTransaction) {
const token = util.getContractAtAddress(txParams.to)
const results = await Promise.all([
token.symbol(),
token.decimals(),
])
const [ symbol, decimals ] = results
if (symbol[0] && decimals[0]) {
this.setState({
transactionType: TX_TYPES.SEND_TOKEN,
tokenAddress: txParams.to,
tokenSymbol: symbol[0],
tokenDecimals: decimals[0],
isFetching: false,
})
} else {
this.setState({
transactionType: TX_TYPES.SEND_TOKEN,
tokenAddress: txParams.to,
tokenSymbol: null,
tokenDecimals: null,
isFetching: false,
})
}
} else {
this.setState({
transactionType: TX_TYPES.SEND_ETHER,
isFetching: false,
})
}
}
PendingTx.prototype.gatherTxMeta = function () {
const props = this.props
const state = this.state
const txData = clone(state.txData) || clone(props.txData)
return txData
}
PendingTx.prototype.render = function () {
const {
isFetching,
transactionType,
tokenAddress,
tokenSymbol,
tokenDecimals,
} = this.state
const { sendTransaction } = this.props
if (isFetching) {
return h('noscript')
}
switch (transactionType) {
case TX_TYPES.SEND_ETHER:
return h(ConfirmSendEther, {
txData: this.gatherTxMeta(),
sendTransaction,
})
case TX_TYPES.SEND_TOKEN:
return h(ConfirmSendToken, {
txData: this.gatherTxMeta(),
sendTransaction,
token: {
address: tokenAddress,
symbol: tokenSymbol,
decimals: tokenDecimals,
},
})
case TX_TYPES.DEPLOY_CONTRACT:
return h(ConfirmDeployContract, {
txData: this.gatherTxMeta(),
sendTransaction,
})
default:
return h('noscript')
}
}
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