const path = require('path')
const assert = require('assert')
const webdriver = require('selenium-webdriver')
const { By } = webdriver
const {
  delay,
  buildChromeWebDriver,
  buildFirefoxWebdriver,
  installWebExt,
  getExtensionIdChrome,
  getExtensionIdFirefox,
} = require('./func')
const {
  checkBrowserForConsoleErrors,
  closeAllWindowHandlesExcept,
  findElement,
  findElements,
  openNewPage,
  switchToWindowWithTitle,
  verboseReportOnFailure,
  waitUntilXWindowHandles,
} = require('./helpers')
const fetchMockResponses = require('./fetch-mocks.js')


describe('Using MetaMask with an existing account', function () {
  let extensionId
  let driver

  const testSeedPhrase = 'forum vessel pink push lonely enact gentle tail admit parrot grunt dress'
  const regularDelayMs = 1000
  const largeDelayMs = regularDelayMs * 2

  const button = async (x) => {
    const buttoncheck = x
    await buttoncheck.click()
    await delay(largeDelayMs)
    const [results] = await findElements(driver, By.css('#results'))
    const resulttext = await results.getText()
    var parsedData = JSON.parse(resulttext)

    return (parsedData)

  }

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

  before(async function () {
    let extensionUrl
    switch (process.env.SELENIUM_BROWSER) {
      case 'chrome': {
        const extensionPath = path.resolve('dist/chrome')
        driver = buildChromeWebDriver(extensionPath)
        extensionId = await getExtensionIdChrome(driver)
        await delay(regularDelayMs)
        extensionUrl = `chrome-extension://${extensionId}/home.html`
        break
      }
      case 'firefox': {
        const extensionPath = path.resolve('dist/firefox')
        driver = buildFirefoxWebdriver()
        await installWebExt(driver, extensionPath)
        await delay(regularDelayMs)
        extensionId = await getExtensionIdFirefox(driver)
        extensionUrl = `moz-extension://${extensionId}/home.html`
        break
      }
    }
    // Depending on the state of the application built into the above directory (extPath) and the value of
    // METAMASK_DEBUG we will see different post-install behaviour and possibly some extra windows. Here we
    // are closing any extraneous windows to reset us to a single window before continuing.
    const [tab1] = await driver.getAllWindowHandles()
    await closeAllWindowHandlesExcept(driver, [tab1])
    await driver.switchTo().window(tab1)
    await driver.get(extensionUrl)
  })

  beforeEach(async function () {
    await driver.executeScript(
      'window.origFetch = window.fetch.bind(window);' +
      'window.fetch = ' +
      '(...args) => { ' +
      'if (args[0] === "https://ethgasstation.info/json/ethgasAPI.json") { return ' +
      'Promise.resolve({ json: () => Promise.resolve(JSON.parse(\'' + fetchMockResponses.ethGasBasic + '\')) }); } else if ' +
      '(args[0] === "https://ethgasstation.info/json/predictTable.json") { return ' +
      'Promise.resolve({ json: () => Promise.resolve(JSON.parse(\'' + fetchMockResponses.ethGasPredictTable + '\')) }); } else if ' +
      '(args[0].match(/chromeextensionmm/)) { return ' +
      'Promise.resolve({ json: () => Promise.resolve(JSON.parse(\'' + fetchMockResponses.metametrics + '\')) }); } else if ' +
      '(args[0] === "https://dev.blockscale.net/api/gasexpress.json") { return ' +
      'Promise.resolve({ json: () => Promise.resolve(JSON.parse(\'' + fetchMockResponses.gasExpress + '\')) }); } ' +
      'return window.origFetch(...args); };' +
      'function cancelInfuraRequest(requestDetails) {' +
        'console.log("Canceling: " + requestDetails.url);' +
        'return {' +
          'cancel: true' +
        '};' +
     ' }' +
      'window.chrome && window.chrome.webRequest && window.chrome.webRequest.onBeforeRequest.addListener(' +
        'cancelInfuraRequest,' +
        '{urls: ["https://*.infura.io/*"]},' +
        '["blocking"]' +
      ');'
    )
  })

  afterEach(async function () {
    if (process.env.SELENIUM_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(driver, this.currentTest)
    }
  })

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

  describe('First time flow starting from an existing seed phrase', () => {
    it('clicks the continue button on the welcome screen', async () => {
      await findElement(driver, By.css('.welcome-page__header'))
      const welcomeScreenBtn = await findElement(driver, By.css('.first-time-flow__button'))
      welcomeScreenBtn.click()
      await delay(largeDelayMs)
    })

    it('clicks the "Import Wallet" option', async () => {
      const customRpcButton = await findElement(driver, By.xpath(`//button[contains(text(), 'Import Wallet')]`))
      customRpcButton.click()
      await delay(largeDelayMs)
    })

    it('clicks the "No thanks" option on the metametrics opt-in screen', async () => {
      const optOutButton = await findElement(driver, By.css('.btn-default'))
      optOutButton.click()
      await delay(largeDelayMs)
    })

    it('imports a seed phrase', async () => {
      const [seedTextArea] = await findElements(driver, By.css('textarea.first-time-flow__textarea'))
      await seedTextArea.sendKeys(testSeedPhrase)
      await delay(regularDelayMs)

      const [password] = await findElements(driver, By.id('password'))
      await password.sendKeys('correct horse battery staple')
      const [confirmPassword] = await findElements(driver, By.id('confirm-password'))
      confirmPassword.sendKeys('correct horse battery staple')

      const tosCheckBox = await findElement(driver, By.css('.first-time-flow__checkbox'))
      await tosCheckBox.click()

      const [importButton] = await findElements(driver, By.xpath(`//button[contains(text(), 'Import')]`))
      await importButton.click()
      await delay(regularDelayMs)
    })

    it('clicks through the success screen', async () => {
      await findElement(driver, By.xpath(`//div[contains(text(), 'Congratulations')]`))
      const doneButton = await findElement(driver, By.css('button.first-time-flow__button'))
      await doneButton.click()
      await delay(regularDelayMs)
    })
  })


  describe('opens dapp', () => {

    it('switches to mainnet', async () => {
      const networkDropdown = await findElement(driver, By.css('.network-name'))
      await networkDropdown.click()
      await delay(regularDelayMs)

      const [mainnet] = await findElements(driver, By.xpath(`//span[contains(text(), 'Main Ethereum Network')]`))
      await mainnet.click()
      await delay(largeDelayMs * 2)
    })

    it('connects to dapp', async () => {
      await openNewPage(driver, 'http://127.0.0.1:8080/')
      await delay(regularDelayMs)

      await waitUntilXWindowHandles(driver, 3)
      const windowHandles = await driver.getAllWindowHandles()

      const extension = windowHandles[0]
      const popup = await switchToWindowWithTitle(driver, 'MetaMask Notification', windowHandles)
      const dapp = windowHandles.find(handle => handle !== extension && handle !== popup)

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

      await driver.switchTo().window(dapp)
      await delay(regularDelayMs)
    })
  })

  describe('testing web3 methods', async () => {


    it('testing hexa methods', async () => {


      var List = await driver.findElements(By.className('hexaNumberMethods'))

      for (let i = 0; i < List.length; i++) {
        try {

          var parsedData = await button(List[i])
          console.log(parsedData)
          var result = parseInt(parsedData.result, 16)

          assert.equal((typeof result === 'number'), true)
          await delay(regularDelayMs)
        } catch (err) {
          console.log(err)
          assert(false)

        }
      }
    })

    it('testing booleanMethods', async () => {

      var List = await driver.findElements(By.className('booleanMethods'))

      for (let i = 0; i < List.length; i++) {
        try {

          var parsedData = await button(List[i])
          console.log(parsedData)
          var result = parsedData.result

          assert.equal(result, false)
          await delay(regularDelayMs)
        } catch (err) {
          console.log(err)
          assert(false)


        }
      }

    })

    it('testing  transactionMethods', async () => {

      var List = await driver.findElements(By.className('transactionMethods'))

      for (let i = 0; i < List.length; i++) {
        try {

          var parsedData = await button(List[i])

          console.log(parsedData.result.blockHash)

          var result = []
          result.push(parseInt(parsedData.result.blockHash, 16))
          result.push(parseInt(parsedData.result.blockNumber, 16))
          result.push(parseInt(parsedData.result.gas, 16))
          result.push(parseInt(parsedData.result.gasPrice, 16))
          result.push(parseInt(parsedData.result.hash, 16))
          result.push(parseInt(parsedData.result.input, 16))
          result.push(parseInt(parsedData.result.nonce, 16))
          result.push(parseInt(parsedData.result.r, 16))
          result.push(parseInt(parsedData.result.s, 16))
          result.push(parseInt(parsedData.result.v, 16))
          result.push(parseInt(parsedData.result.to, 16))
          result.push(parseInt(parsedData.result.value, 16))


          result.forEach((value) => {
            assert.equal((typeof value === 'number'), true)
          })


        } catch (err) {

          console.log(err)
          assert(false)


        }
      }

    })

    it('testing blockMethods', async () => {

      var List = await driver.findElements(By.className('blockMethods'))

      for (let i = 0; i < List.length; i++) {
        try {

          var parsedData = await button(List[i])
          console.log(JSON.stringify(parsedData) + i)

          console.log(parsedData.result.parentHash)

          var result = parseInt(parsedData.result.parentHash, 16)

          assert.equal((typeof result === 'number'), true)
          await delay(regularDelayMs)
        } catch (err) {

          console.log(err)
          assert(false)


        }
      }
    })

    it('testing methods', async () => {

      var List = await driver.findElements(By.className('methods'))
      var parsedData
      var result

      for (let i = 0; i < List.length; i++) {
        try {

          if (i === 2) {

            parsedData = await button(List[i])
            console.log(parsedData.result.blockHash)

            result = parseInt(parsedData.result.blockHash, 16)

            assert.equal((typeof result === 'number' || (result === 0)), true)
            await delay(regularDelayMs)
          } else {
            parsedData = await button(List[i])
            console.log(parsedData.result)

            result = parseInt(parsedData.result, 16)

            assert.equal((typeof result === 'number' || (result === 0)), true)
            await delay(regularDelayMs)
          }


        } catch (err) {

          console.log(err)
          assert(false)


        }
      }
    })


  })


})