const path = require('path')
const assert = require('assert')
const webdriver = require('selenium-webdriver')
const { By, Key, until } = webdriver
const {
  delay,
  createModifiedTestBuild,
  setupBrowserAndExtension,
  verboseReportOnFailure,
} = require('../func')
const {
  findElement,
  findElements,
  checkBrowserForConsoleErrors,
  openNewPage,
} = require('./helpers')

describe('MetaMask', function () {
  const browser = process.env.SELENIUM_BROWSER
  let driver
  let extensionUri
  let tokenAddress

  const testSeedPhrase = 'phrase upgrade clock rough situate wedding elder clever doctor stamp excess tent'
  const tinyDelayMs = 1000
  const regularDelayMs = tinyDelayMs * 2
  const largeDelayMs = regularDelayMs * 2

  this.timeout(0)
  this.bail(true)

  before(async function () {
    const srcPath = path.resolve(`dist/${browser}`)
    const { extPath } = await createModifiedTestBuild({ browser, srcPath })
    const installResult = await setupBrowserAndExtension({ browser, extPath })
    driver = installResult.driver
    extensionUri = installResult.extensionUri

    await driver.get(extensionUri)
    await delay(tinyDelayMs)
  })

  afterEach(async function () {
    if (browser === 'chrome') {
      const errors = await checkBrowserForConsoleErrors(driver)
      if (errors.length) {
        const errorReports = errors.map(err => err.message)
        const errorMessage = `Errors found in browser console:\n${errorReports.join('\n')}`
        console.error(new Error(errorMessage))
      }
    }
    if (this.currentTest.state === 'failed') {
      await verboseReportOnFailure({ browser, driver, title: this.currentTest.title })
    }
  })

  after(async function () {
    await driver.quit()
  })

  describe('New UI setup', async function () {
    let networkSelector
    it('switches to first tab', async function () {
      const [firstTab] = await driver.getAllWindowHandles()
      await driver.switchTo().window(firstTab)
      await delay(regularDelayMs)
      try {
        networkSelector = await findElement(driver, By.css('#network_component'))
      } catch (e) {
        await driver.get(extensionUri)
      }
      await delay(regularDelayMs)
    })

    it('use the local network', async function () {
      await networkSelector.click()
      await delay(regularDelayMs)

      const localhost = await findElement(driver, By.xpath(`//li[contains(text(), 'Localhost')]`))
      await localhost.click()
      await delay(regularDelayMs)
    })

    it('selects the new UI option', async () => {
      const button = await findElement(driver, By.xpath("//p[contains(text(), 'Try Beta Version')]"))
      await button.click()
      await delay(regularDelayMs)

      // Close all other tabs
      const [oldUi, tab1, tab2] = await driver.getAllWindowHandles()
      await driver.switchTo().window(oldUi)
      await driver.close()

      await driver.switchTo().window(tab1)
      const tab1Url = await driver.getCurrentUrl()
      if (tab1Url.match(/metamask.io/)) {
        await driver.switchTo().window(tab1)
        await driver.close()
        await driver.switchTo().window(tab2)
      } else if (tab2) {
        await driver.switchTo().window(tab2)
        await driver.close()
        await driver.switchTo().window(tab1)
      }
      await delay(regularDelayMs)

      const continueBtn = await findElement(driver, By.css('.welcome-screen__button'))
      await continueBtn.click()
      await delay(regularDelayMs)
    })
  })

  describe('Going through the first time flow', () => {
    it('accepts a secure password', async () => {
      const passwordBox = await findElement(driver, By.css('.create-password #create-password'))
      const passwordBoxConfirm = await findElement(driver, By.css('.create-password #confirm-password'))
      const button = await findElement(driver, By.css('.create-password button'))

      await passwordBox.sendKeys('correct horse battery staple')
      await passwordBoxConfirm.sendKeys('correct horse battery staple')
      await button.click()
      await delay(regularDelayMs)
    })

    it('clicks through the unique image screen', async () => {
      const nextScreen = await findElement(driver, By.css('.unique-image button'))
      await nextScreen.click()
      await delay(regularDelayMs)
    })

    it('clicks through the ToS', async () => {
      // terms of use
      const canClickThrough = await driver.findElement(By.css('.tou button')).isEnabled()
      assert.equal(canClickThrough, false, 'disabled continue button')
      const bottomOfTos = await findElement(driver, By.linkText('Attributions'))
      await driver.executeScript('arguments[0].scrollIntoView(true)', bottomOfTos)
      await delay(regularDelayMs)
      const acceptTos = await findElement(driver, By.css('.tou button'))
      driver.wait(until.elementIsEnabled(acceptTos))
      await acceptTos.click()
      await delay(regularDelayMs)
    })

    it('clicks through the privacy notice', async () => {
      // privacy notice
      const nextScreen = await findElement(driver, By.css('.tou button'))
      await nextScreen.click()
      await delay(regularDelayMs)
    })

    it('clicks through the phishing notice', async () => {
      // phishing notice
      const noticeElement = await driver.findElement(By.css('.markdown'))
      await driver.executeScript('arguments[0].scrollTop = arguments[0].scrollHeight', noticeElement)
      await delay(regularDelayMs)
      const nextScreen = await findElement(driver, By.css('.tou button'))
      await nextScreen.click()
      await delay(regularDelayMs)
    })

    let seedPhrase

    it('reveals the seed phrase', async () => {
      const byRevealButton = By.css('.backup-phrase__secret-blocker .backup-phrase__reveal-button')
      await driver.wait(until.elementLocated(byRevealButton, 10000))
      const revealSeedPhraseButton = await findElement(driver, byRevealButton, 10000)
      await revealSeedPhraseButton.click()
      await delay(regularDelayMs)

      seedPhrase = await driver.findElement(By.css('.backup-phrase__secret-words')).getText()
      assert.equal(seedPhrase.split(' ').length, 12)
      await delay(regularDelayMs)

      const nextScreen = await findElement(driver, By.css('.backup-phrase button'))
      await nextScreen.click()
      await delay(regularDelayMs)
    })

    async function retypeSeedPhrase (words) {
      try {
        const word0 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[0]}')]`), 10000)

        await word0.click()
        await delay(tinyDelayMs)

        const word1 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[1]}')]`), 10000)

        await word1.click()
        await delay(tinyDelayMs)

        const word2 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[2]}')]`), 10000)

        await word2.click()
        await delay(tinyDelayMs)

        const word3 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[3]}')]`), 10000)

        await word3.click()
        await delay(tinyDelayMs)

        const word4 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[4]}')]`), 10000)

        await word4.click()
        await delay(tinyDelayMs)

        const word5 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[5]}')]`), 10000)

        await word5.click()
        await delay(tinyDelayMs)

        const word6 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[6]}')]`), 10000)

        await word6.click()
        await delay(tinyDelayMs)

        const word7 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[7]}')]`), 10000)

        await word7.click()
        await delay(tinyDelayMs)

        const word8 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[8]}')]`), 10000)

        await word8.click()
        await delay(tinyDelayMs)

        const word9 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[9]}')]`), 10000)

        await word9.click()
        await delay(tinyDelayMs)

        const word10 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[10]}')]`), 10000)

        await word10.click()
        await delay(tinyDelayMs)

        const word11 = await findElement(driver, By.xpath(`//button[contains(text(), '${words[11]}')]`), 10000)
        await word11.click()
        await delay(tinyDelayMs)
      } catch (e) {
        await driver.get(extensionUri)
        await retypeSeedPhrase(words)
      }
    }

    it('can retype the seed phrase', async () => {
      const words = seedPhrase.split(' ')

      await retypeSeedPhrase(words)

      const confirm = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`))
      await confirm.click()
      await delay(regularDelayMs)
    })

    it('clicks through the deposit modal', async () => {
      const byBuyModal = By.css('span .modal')
      const buyModal = await driver.wait(until.elementLocated(byBuyModal))
      const closeModal = await findElement(driver, By.css('.page-container__header-close'))
      await closeModal.click()
      await driver.wait(until.stalenessOf(buyModal))
      await delay(regularDelayMs)
    })
  })

  describe('Show account information', () => {
    it('shows the QR code for the account', async () => {
      await driver.findElement(By.css('.wallet-view__details-button')).click()
      await driver.findElement(By.css('.qr-wrapper')).isDisplayed()
      await delay(regularDelayMs)

      const accountModal = await driver.findElement(By.css('span .modal'))

      await driver.executeScript("document.querySelector('.account-modal-close').click()")

      await driver.wait(until.stalenessOf(accountModal))
      await delay(regularDelayMs)
    })
  })

  describe('Log out an log back in', () => {
    it('logs out of the account', async () => {
      await driver.findElement(By.css('.account-menu__icon')).click()
      await delay(regularDelayMs)

      const logoutButton = await findElement(driver, By.css('.account-menu__logout-button'))
      assert.equal(await logoutButton.getText(), 'Log out')
      await logoutButton.click()
      await delay(regularDelayMs)
    })

    it('accepts the account password after lock', async () => {
      await driver.findElement(By.id('password')).sendKeys('correct horse battery staple')
      await driver.findElement(By.id('password')).sendKeys(Key.ENTER)
      await delay(regularDelayMs * 4)
    })
  })

  describe('Add account', () => {
    it('choose Create Account from the account menu', async () => {
      await driver.findElement(By.css('.account-menu__icon')).click()
      await delay(regularDelayMs)

      const createAccount = await findElement(driver, By.xpath(`//div[contains(text(), 'Create Account')]`))
      await createAccount.click()
      await delay(regularDelayMs)
    })

    it('set account name', async () => {
      const accountName = await findElement(driver, By.css('.new-account-create-form input'))
      await accountName.sendKeys('2nd account')
      await delay(regularDelayMs)

      const create = await findElement(driver, By.xpath(`//button[contains(text(), 'Create')]`))
      await create.click()
      await delay(regularDelayMs)
    })

    it('should correct account name', async () => {
      const accountName = await findElement(driver, By.css('.account-name'))
      assert.equal(await accountName.getText(), '2nd account')
      await delay(regularDelayMs)
    })
  })

  describe('Import seed phrase', () => {
    it('logs out of the vault', async () => {
      await driver.findElement(By.css('.account-menu__icon')).click()
      await delay(regularDelayMs)

      const logoutButton = await findElement(driver, By.css('.account-menu__logout-button'))
      assert.equal(await logoutButton.getText(), 'Log out')
      await logoutButton.click()
      await delay(regularDelayMs)
    })

    it('imports seed phrase', async () => {
      const restoreSeedLink = await findElement(driver, By.css('.unlock-page__link--import'))
      assert.equal(await restoreSeedLink.getText(), 'Import using account seed phrase')
      await restoreSeedLink.click()
      await delay(regularDelayMs)

      const seedTextArea = await findElement(driver, By.css('textarea'))
      await seedTextArea.sendKeys(testSeedPhrase)
      await delay(regularDelayMs)

      await driver.findElement(By.id('password-box')).sendKeys('correct horse battery staple')
      await driver.findElement(By.id('password-box-confirm')).sendKeys('correct horse battery staple')
      await driver.findElement(By.css('button:nth-child(2)')).click()
      await delay(regularDelayMs)
    })

    it('balance renders', async () => {
      const balance = await findElement(driver, By.css('.balance-display .token-amount'))
      const tokenAmount = await balance.getText()
      assert.equal(tokenAmount, '100.000 ETH')
      await delay(regularDelayMs)
    })
  })

  describe('Send ETH from inside MetaMask', () => {
    it('starts to send a transaction', async function () {
      const sendButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Send')]`))
      await sendButton.click()
      await delay(regularDelayMs)

      const inputAddress = await findElement(driver, By.css('input[placeholder="Recipient Address"]'))
      const inputAmount = await findElement(driver, By.css('.currency-display__input'))
      await inputAddress.sendKeys('0x2f318C334780961FB129D2a6c30D0763d9a5C970')
      await inputAmount.sendKeys('1')

      // Set the gas limit
      const configureGas = await findElement(driver, By.css('.send-v2__gas-fee-display button'))
      await configureGas.click()
      await delay(regularDelayMs)

      const gasModal = await driver.findElement(By.css('span .modal'))

      const save = await findElement(driver, By.xpath(`//button[contains(text(), 'Save')]`))
      await save.click()
      await driver.wait(until.stalenessOf(gasModal))
      await delay(regularDelayMs)

      // Continue to next screen
      const nextScreen = await findElement(driver, By.xpath(`//button[contains(text(), 'Next')]`))
      await nextScreen.click()
      await delay(regularDelayMs)
    })

    it('confirms the transaction', async function () {
      const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`))
      await confirmButton.click()
      await delay(regularDelayMs)
    })

    it('finds the transaction in the transactions list', async function () {
      const transactions = await findElements(driver, By.css('.tx-list-item'))
      assert.equal(transactions.length, 1)

      const txValues = await findElement(driver, By.css('.tx-list-value'))
      await driver.wait(until.elementTextMatches(txValues, /1\sETH/), 10000)
    })
  })

  describe('Send ETH from Faucet', () => {
    it('starts a send transaction inside Faucet', async () => {
      await openNewPage(driver, 'https://faucet.metamask.io')

      const [extension, faucet] = await driver.getAllWindowHandles()
      await driver.switchTo().window(faucet)

      const faucetPageTitle = await findElement(driver, By.css('.container-fluid'))
      await driver.wait(until.elementTextMatches(faucetPageTitle, /MetaMask/))
      await delay(regularDelayMs)

      const send1eth = await findElement(driver, By.xpath(`//button[contains(text(), '10 ether')]`), 14000)
      await send1eth.click()
      await delay(regularDelayMs)

      await driver.switchTo().window(extension)
      await driver.get(extensionUri)
      await delay(regularDelayMs)

      const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`), 14000)
      await confirmButton.click()
      await delay(regularDelayMs)

      await driver.switchTo().window(faucet)
      await delay(regularDelayMs)
      await driver.close()
      await delay(regularDelayMs)
      await driver.switchTo().window(extension)
      await delay(regularDelayMs)
      await driver.get(extensionUri)
      await delay(regularDelayMs)
    })
  })

  describe('Deploy contract and call contract methods', () => {
    let extension
    let contractTestPage
    it('confirms a deploy contract transaction', async () => {
      await openNewPage(driver, 'http://127.0.0.1:8080/');

      [extension, contractTestPage] = await driver.getAllWindowHandles()
      await delay(regularDelayMs)

      const deployContractButton = await findElement(driver, By.css('#deployButton'))
      await deployContractButton.click()
      await delay(regularDelayMs)

      await driver.switchTo().window(extension)
      await delay(regularDelayMs)

      const txListItem = await findElement(driver, By.css('.tx-list-item'))
      await txListItem.click()
      await delay(regularDelayMs)

      const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`))
      await confirmButton.click()
      await delay(regularDelayMs)

      const txStatuses = await findElements(driver, By.css('.tx-list-status'))
      await driver.wait(until.elementTextMatches(txStatuses[0], /Confirmed/))

      const txAccounts = await findElements(driver, By.css('.tx-list-account'))
      assert.equal(await txAccounts[0].getText(), 'Contract Deployment')
    })

    it('calls and confirms a contract method where ETH is sent', async () => {
      await driver.switchTo().window(contractTestPage)
      await delay(regularDelayMs)

      const depositButton = await findElement(driver, By.css('#depositButton'))
      await depositButton.click()
      await delay(regularDelayMs)

      await driver.switchTo().window(extension)
      await delay(regularDelayMs)

      const txListItem = await findElement(driver, By.css('.tx-list-item'))
      await txListItem.click()
      await delay(regularDelayMs)

      // Set the gas limit
      const configureGas = await findElement(driver, By.css('.sliders-icon-container'))
      await configureGas.click()
      await delay(regularDelayMs)

      const gasModal = await driver.findElement(By.css('span .modal'))
      await driver.wait(until.elementLocated(By.css('.send-v2__customize-gas__title')))

      const [gasPriceInput, gasLimitInput] = await findElements(driver, By.css('.customize-gas-input'))
      await gasPriceInput.clear()
      await gasPriceInput.sendKeys('10')
      await gasLimitInput.clear()
      await gasLimitInput.sendKeys('60001')

      const save = await findElement(driver, By.xpath(`//button[contains(text(), 'Save')]`))
      await save.click()
      await delay(regularDelayMs)

      await driver.wait(until.stalenessOf(gasModal))

      const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`))
      await confirmButton.click()
      await delay(regularDelayMs)

      const txStatuses = await findElements(driver, By.css('.tx-list-status'))
      await driver.wait(until.elementTextMatches(txStatuses[0], /Confirmed/))

      const txValues = await findElement(driver, By.css('.tx-list-value'))
      await driver.wait(until.elementTextMatches(txValues, /3\sETH/), 10000)

      const txAccounts = await findElements(driver, By.css('.tx-list-account'))
      const firstTxAddress = await txAccounts[0].getText()
      assert(firstTxAddress.match(/^0x\w{8}\.{3}\w{4}$/))
    })

    it('calls and confirms a contract method where ETH is received', async () => {
      await driver.switchTo().window(contractTestPage)
      await delay(regularDelayMs)

      const withdrawButton = await findElement(driver, By.css('#withdrawButton'))
      await withdrawButton.click()
      await delay(regularDelayMs)

      await driver.switchTo().window(extension)
      await delay(regularDelayMs)

      const txListItem = await findElement(driver, By.css('.tx-list-item'))
      await txListItem.click()
      await delay(regularDelayMs)

      const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`))
      await confirmButton.click()
      await delay(regularDelayMs)

      const txStatuses = await findElements(driver, By.css('.tx-list-status'))
      await driver.wait(until.elementTextMatches(txStatuses[0], /Confirmed/))

      const txValues = await findElement(driver, By.css('.tx-list-value'))
      await driver.wait(until.elementTextMatches(txValues, /0\sETH/), 10000)

      await driver.switchTo().window(contractTestPage)
      await driver.close()
      await driver.switchTo().window(extension)
    })

    it('renders the correct ETH balance', async () => {
      const balance = await findElement(driver, By.css('.tx-view .balance-display .token-amount'))
      await driver.wait(until.elementTextMatches(balance, /^86.*ETH.*$/), 10000)
      const tokenAmount = await balance.getText()
      assert.ok(/^86.*ETH.*$/.test(tokenAmount))
      await delay(regularDelayMs)
    })
  })

  describe('Add a custom token from TokenFactory', () => {
    it('creates a new token', async () => {
      openNewPage(driver, 'https://tokenfactory.surge.sh/#/factory')

      await delay(regularDelayMs * 10)
      const [extension, tokenFactory] = await driver.getAllWindowHandles()

      const [
        totalSupply,
        tokenName,
        tokenDecimal,
        tokenSymbol,
      ] = await findElements(driver, By.css('.form-control'))

      await totalSupply.sendKeys('100')
      await tokenName.sendKeys('Test')
      await tokenDecimal.sendKeys('0')
      await tokenSymbol.sendKeys('TST')

      const createToken = await findElement(driver, By.xpath(`//button[contains(text(), 'Create Token')]`))
      await createToken.click()
      await delay(regularDelayMs)

      await driver.switchTo().window(extension)
      await driver.get(extensionUri)
      await delay(regularDelayMs)

      const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`))
      await confirmButton.click()
      await delay(regularDelayMs)

      await driver.switchTo().window(tokenFactory)
      await delay(regularDelayMs)

      const tokenContactAddress = await driver.findElement(By.css('div > div > div:nth-child(2) > span:nth-child(3)'))
      tokenAddress = await tokenContactAddress.getText()

      await driver.close()
      await driver.switchTo().window(extension)
      await driver.get(extensionUri)
      await driver.switchTo().window(extension)
      await delay(regularDelayMs)

    })

    it('clicks on the Add Token button', async () => {
      const addToken = await findElement(driver, By.xpath(`//button[contains(text(), 'Add Token')]`))
      await addToken.click()
      await delay(regularDelayMs)
    })

    it('picks the newly created Test token', async () => {
      const addCustomToken = await findElement(driver, By.xpath("//div[contains(text(), 'Custom Token')]"))
      await addCustomToken.click()
      await delay(regularDelayMs)

      const newTokenAddress = await findElement(driver, By.css('#custom-address'))
      await newTokenAddress.sendKeys(tokenAddress)
      await delay(regularDelayMs)

      const nextScreen = await findElement(driver, By.xpath(`//button[contains(text(), 'Next')]`))
      await nextScreen.click()
      await delay(regularDelayMs)

      const addTokens = await findElement(driver, By.xpath(`//button[contains(text(), 'Add Tokens')]`))
      await addTokens.click()
      await delay(regularDelayMs)
    })

    it('renders the balance for the new token', async () => {
      const balance = await findElement(driver, By.css('.tx-view .balance-display .token-amount'))
      await driver.wait(until.elementTextMatches(balance, /^100\s*TST\s*$/))
      const tokenAmount = await balance.getText()
      assert.ok(/^100\s*TST\s*$/.test(tokenAmount))
      await delay(regularDelayMs)
    })
  })

  describe('Send token from inside MetaMask', () => {
    let gasModal
    it('starts to send a transaction', async function () {
      const sendButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Send')]`))
      await sendButton.click()
      await delay(regularDelayMs)

      const inputAddress = await findElement(driver, By.css('input[placeholder="Recipient Address"]'))
      const inputAmount = await findElement(driver, By.css('.currency-display__input'))
      await inputAddress.sendKeys('0x2f318C334780961FB129D2a6c30D0763d9a5C970')
      await inputAmount.sendKeys('50')

      // Set the gas limit
      const configureGas = await findElement(driver, By.css('.send-v2__gas-fee-display button'))
      await configureGas.click()
      await delay(regularDelayMs)

      gasModal = await driver.findElement(By.css('span .modal'))
    })

    it('customizes gas', async () => {
      await driver.wait(until.elementLocated(By.css('.send-v2__customize-gas__title')))
      const save = await findElement(driver, By.xpath(`//button[contains(text(), 'Save')]`))
      await save.click()
      await delay(regularDelayMs)
    })

    it('transitions to the confirm screen', async () => {
      await driver.wait(until.stalenessOf(gasModal))

      // Continue to next screen
      const nextScreen = await findElement(driver, By.xpath(`//button[contains(text(), 'Next')]`))
      await nextScreen.click()
      await delay(regularDelayMs)
    })

    it('submits the transaction', async function () {
      const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`))
      await confirmButton.click()
      await delay(regularDelayMs)
    })

    it('finds the transaction in the transactions list', async function () {
      const transactions = await findElements(driver, By.css('.tx-list-item'))
      assert.equal(transactions.length, 1)

      const txValues = await findElements(driver, By.css('.tx-list-value'))
      assert.equal(txValues.length, 1)

      // test cancelled on firefox until https://github.com/mozilla/geckodriver/issues/906 is resolved,
      // or possibly until we use latest version of firefox in the tests
      if (process.env.SELENIUM_BROWSER !== 'firefox') {
        await driver.wait(until.elementTextMatches(txValues[0], /50\sTST/), 10000)
      }

      const txStatuses = await findElements(driver, By.css('.tx-list-status'))
      const tx = await driver.wait(until.elementTextMatches(txStatuses[0], /Confirmed|Failed/), 10000)
      assert.equal(await tx.getText(), 'Confirmed')
    })
  })

  describe('Send a custom token from TokenFactory', () => {
    let gasModal
    it('sends an already created token', async () => {
     openNewPage(driver, `https://tokenfactory.surge.sh/#/token/${tokenAddress}`)

      const [extension] = await driver.getAllWindowHandles()

      const [
        transferToAddress,
        transferToAmount,
      ] = await findElements(driver, By.css('.form-control'))

      await transferToAddress.sendKeys('0x2f318C334780961FB129D2a6c30D0763d9a5C970')
      await transferToAmount.sendKeys('26')

      const transferAmountButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Transfer Amount')]`))
      await transferAmountButton.click()
      await delay(regularDelayMs)

      const [,, popup] = await driver.getAllWindowHandles()
      await driver.switchTo().window(popup)
      await driver.close()
      await driver.switchTo().window(extension)
      await delay(regularDelayMs)

      const [txListItem] = await findElements(driver, By.css('.tx-list-item'))
      await txListItem.click()
      await delay(regularDelayMs)

      // Set the gas limit
      const configureGas = await driver.wait(until.elementLocated(By.css('.send-v2__gas-fee-display button')))
      await configureGas.click()
      await delay(regularDelayMs)

      gasModal = await driver.findElement(By.css('span .modal'))
    })

    it('customizes gas', async () => {
      await driver.wait(until.elementLocated(By.css('.send-v2__customize-gas__title')))

      const [gasPriceInput, gasLimitInput] = await findElements(driver, By.css('.customize-gas-input'))
      await gasPriceInput.clear()
      await delay(tinyDelayMs)
      await gasPriceInput.sendKeys('10')
      await delay(tinyDelayMs)
      await gasLimitInput.clear()
      await delay(tinyDelayMs)
      await gasLimitInput.sendKeys(Key.chord(Key.CONTROL, 'a'))
      await gasLimitInput.sendKeys('60000')
      await gasLimitInput.sendKeys(Key.chord(Key.CONTROL, 'e'))

      // Needed for different behaviour of input in different versions of firefox
      const gasLimitInputValue = await gasLimitInput.getAttribute('value')
      if (gasLimitInputValue === '600001') {
        await gasLimitInput.sendKeys(Key.BACK_SPACE)
      }

      const save = await findElement(driver, By.css('.send-v2__customize-gas__save'))
      await save.click()
      await driver.wait(until.stalenessOf(gasModal))

      const gasFeeInput = await findElement(driver, By.css('.currency-display__input'))
      assert.equal(await gasFeeInput.getAttribute('value'), 0.0006)
    })

    it('submits the transaction', async function () {
      const confirmButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Confirm')]`))
      await confirmButton.click()
      await delay(regularDelayMs)
    })

    it('finds the transaction in the transactions list', async function () {
      const transactions = await findElements(driver, By.css('.tx-list-item'))
      assert.equal(transactions.length, 2)

      const txValues = await findElements(driver, By.css('.tx-list-value'))
      await driver.wait(until.elementTextMatches(txValues[0], /26\sTST/))
      const txStatuses = await findElements(driver, By.css('.tx-list-status'))
      await driver.wait(until.elementTextMatches(txStatuses[0], /Confirmed/))

      const walletBalance = await findElement(driver, By.css('.wallet-balance'))
      await walletBalance.click()

      const tokenListItems = await findElements(driver, By.css('.token-list-item'))
      await tokenListItems[0].click()

      // test cancelled on firefox until https://github.com/mozilla/geckodriver/issues/906 is resolved,
      // or possibly until we use latest version of firefox in the tests
      if (process.env.SELENIUM_BROWSER !== 'firefox') {
        const tokenBalanceAmount = await findElement(driver, By.css('.token-balance__amount'))
        assert.equal(await tokenBalanceAmount.getText(), '24')
      }
    })
  })

  describe('Hide token', () => {
    it('hides the token when clicked', async () => {
      const [hideTokenEllipsis] = await findElements(driver, By.css('.token-list-item__ellipsis'))
      await hideTokenEllipsis.click()

      const byTokenMenuDropdownOption = By.css('.menu__item--clickable')
      const tokenMenuDropdownOption = await driver.wait(until.elementLocated(byTokenMenuDropdownOption))

      await tokenMenuDropdownOption.click()

      const confirmHideModal = await findElement(driver, By.css('span .modal'))

      const byHideTokenConfirmationButton = By.css('.hide-token-confirmation__button')
      const hideTokenConfirmationButton = await driver.wait(until.elementLocated(byHideTokenConfirmationButton))
      await hideTokenConfirmationButton.click()

      await driver.wait(until.stalenessOf(confirmHideModal))
    })
  })

  describe('Add existing token using search', () => {
    it('clicks on the Add Token button', async () => {
      const addToken = await findElement(driver, By.xpath(`//button[contains(text(), 'Add Token')]`))
      await addToken.click()
      await delay(regularDelayMs)
    })

    it('can pick a token from the existing options', async () => {
      const tokenSearch = await findElement(driver, By.css('#search-tokens'))
      await tokenSearch.sendKeys('BAT')
      await delay(regularDelayMs)

      const token = await findElement(driver, By.xpath("//span[contains(text(), 'BAT')]"))
      await token.click()
      await delay(regularDelayMs)

      const nextScreen = await findElement(driver, By.xpath(`//button[contains(text(), 'Next')]`))
      await nextScreen.click()
      await delay(regularDelayMs)

      const addTokens = await findElement(driver, By.xpath(`//button[contains(text(), 'Add Tokens')]`))
      await addTokens.click()
      await delay(largeDelayMs)
    })

    it('renders the balance for the chosen token', async () => {
      const balance = await findElement(driver, By.css('.tx-view .balance-display .token-amount'))
      await driver.wait(until.elementTextMatches(balance, /0\sBAT/))
      await delay(regularDelayMs)
    })
  })
})