const Component = require('react').Component
const h = require('react-hyperscript')
const inherits = require('util').inherits

const EtherBalance = require('./eth-balance')
const addressSummary = require('../util').addressSummary
const explorerLink = require('../../lib/explorer-link')
const CopyButton = require('./copyButton')
const vreme = new (require('vreme'))

const TransactionIcon = require('./transaction-list-item-icon')

module.exports = TransactionListItem

inherits(TransactionListItem, Component)
function TransactionListItem () {
  Component.call(this)
}

TransactionListItem.prototype.render = function () {
  const { transaction, i, network } = this.props

  var date = formatDate(transaction.time)

  let isLinkable = false
  const numericNet = parseInt(network)
  isLinkable = numericNet === 1 || numericNet === 2

  var isMsg = ('msgParams' in transaction)
  var isTx = ('txParams' in transaction)
  var isPending = transaction.status === 'unconfirmed'

  let txParams
  if (isTx) {
    txParams = transaction.txParams
  } else if (isMsg) {
    txParams = transaction.msgParams
  }

  const isClickable = ('hash' in transaction && isLinkable) || isPending

  return (
    h(`.transaction-list-item.flex-row.flex-space-between${isClickable ? '.pointer' : ''}`, {
      key: `tx-${transaction.id + i}`,
      onClick: (event) => {
        if (isPending) {
          this.props.showTx(transaction.id)
        }

        if (!transaction.hash || !isLinkable) return
        var url = explorerLink(transaction.hash, parseInt(network))
        chrome.tabs.create({ url })
      },
      style: {
        padding: '20px 0',
      },
    }, [

      // large identicon
      h('.identicon-wrapper.flex-column.flex-center.select-none', [
        transaction.status === 'unconfirmed' ? h('i.fa.fa-ellipsis-h', {style: { fontSize: '27px' }})
         : h(TransactionIcon, { txParams, transaction, isTx, isMsg }),
      ]),

      h('.flex-column', {style: {width: '200px', overflow: 'hidden'}}, [
        domainField(txParams),
        h('div', date),
        recipientField(txParams, transaction, isTx, isMsg),
      ]),

      // Places a copy button if tx is successful, else places a placeholder empty div.
      transaction.hash ? h(CopyButton, { value: transaction.hash }) : h('div', {style: { display: 'flex', alignItems: 'center', width: '26px' }}),

      isTx ? h(EtherBalance, {
        value: txParams.value,
      }) : h('.flex-column'),
    ])
  )
}

function domainField (txParams) {
  return h('div', {
    style: {
      fontSize: 'x-small',
      color: '#ABA9AA',
      overflow: 'hidden',
      textOverflow: 'ellipsis',
      width: '100%',
    },
  }, [
    txParams.origin,
  ])
}

function recipientField (txParams, transaction, isTx, isMsg) {
  let message

  if (isMsg) {
    message = 'Signature Requested'
  } else if (txParams.to) {
    message = addressSummary(txParams.to)
  } else {
    message = 'Contract Published'
  }

  return h('div', {
    style: {
      fontSize: 'x-small',
      color: '#ABA9AA',
    },
  }, [
    message,
    failIfFailed(transaction),
  ])
}

function formatDate (date) {
  return vreme.format(new Date(date), 'March 16 2014 14:30')
}

function failIfFailed (transaction) {
  if (transaction.status === 'rejected') {
    return h('span.error', ' (Rejected)')
  }
  if (transaction.status === 'failed') {
    return h('span.error', ' (Failed)')
  }
}