const assert = require('assert')
const ChildProcess = require('child_process')
const https = require('https')
const net = require('net')
const fs = require('fs')
const path = require('path')
const {ipcRenderer, remote} = require('electron')
const {closeWindow} = require('./window-helpers')

const {app, BrowserWindow, ipcMain} = remote

const isCI = remote.getGlobal('isCi')

describe('electron module', function () {
  it('does not expose internal modules to require', function () {
    assert.throws(function () {
      require('clipboard')
    }, /Cannot find module 'clipboard'/)
  })

  describe('require("electron")', function () {
    let window = null

    beforeEach(function () {
      window = new BrowserWindow({
        show: false,
        width: 400,
        height: 400
      })
    })

    afterEach(function () {
      return closeWindow(window).then(function () { window = null })
    })

    it('always returns the internal electron module', function (done) {
      ipcMain.once('answer', function () {
        done()
      })
      window.loadURL('file://' + path.join(__dirname, 'fixtures', 'api', 'electron-module-app', 'index.html'))
    })
  })
})

describe('app module', function () {
  let server, secureUrl
  const certPath = path.join(__dirname, 'fixtures', 'certificates')

  before(function () {
    const options = {
      key: fs.readFileSync(path.join(certPath, 'server.key')),
      cert: fs.readFileSync(path.join(certPath, 'server.pem')),
      ca: [
        fs.readFileSync(path.join(certPath, 'rootCA.pem')),
        fs.readFileSync(path.join(certPath, 'intermediateCA.pem'))
      ],
      requestCert: true,
      rejectUnauthorized: false
    }

    server = https.createServer(options, function (req, res) {
      if (req.client.authorized) {
        res.writeHead(200)
        res.end('<title>authorized</title>')
      } else {
        res.writeHead(401)
        res.end('<title>denied</title>')
      }
    })

    server.listen(0, '127.0.0.1', function () {
      const port = server.address().port
      secureUrl = `https://127.0.0.1:${port}`
    })
  })

  after(function () {
    server.close()
  })

  describe('app.getVersion()', function () {
    it('returns the version field of package.json', function () {
      assert.equal(app.getVersion(), '0.1.0')
    })
  })

  describe('app.setVersion(version)', function () {
    it('overrides the version', function () {
      assert.equal(app.getVersion(), '0.1.0')
      app.setVersion('test-version')
      assert.equal(app.getVersion(), 'test-version')
      app.setVersion('0.1.0')
    })
  })

  describe('app.getName()', function () {
    it('returns the name field of package.json', function () {
      assert.equal(app.getName(), 'Electron Test')
    })
  })

  describe('app.setName(name)', function () {
    it('overrides the name', function () {
      assert.equal(app.getName(), 'Electron Test')
      app.setName('test-name')
      assert.equal(app.getName(), 'test-name')
      app.setName('Electron Test')
    })
  })

  describe('app.getLocale()', function () {
    it('should not be empty', function () {
      assert.notEqual(app.getLocale(), '')
    })
  })

  describe('app.exit(exitCode)', function () {
    var appProcess = null

    afterEach(function () {
      if (appProcess != null) appProcess.kill()
    })

    it('emits a process exit event with the code', function (done) {
      var appPath = path.join(__dirname, 'fixtures', 'api', 'quit-app')
      var electronPath = remote.getGlobal('process').execPath
      var output = ''
      appProcess = ChildProcess.spawn(electronPath, [appPath])
      appProcess.stdout.on('data', function (data) {
        output += data
      })
      appProcess.on('close', function (code) {
        if (process.platform !== 'win32') {
          assert.notEqual(output.indexOf('Exit event with code: 123'), -1)
        }
        assert.equal(code, 123)
        done()
      })
    })

    it('closes all windows', function (done) {
      var appPath = path.join(__dirname, 'fixtures', 'api', 'exit-closes-all-windows-app')
      var electronPath = remote.getGlobal('process').execPath
      appProcess = ChildProcess.spawn(electronPath, [appPath])
      appProcess.on('close', function (code) {
        assert.equal(code, 123)
        done()
      })
    })
  })

  describe('app.relaunch', function () {
    let server = null
    const socketPath = process.platform === 'win32' ? '\\\\.\\pipe\\electron-app-relaunch' : '/tmp/electron-app-relaunch'

    beforeEach(function (done) {
      fs.unlink(socketPath, () => {
        server = net.createServer()
        server.listen(socketPath)
        done()
      })
    })

    afterEach(function (done) {
      server.close(() => {
        if (process.platform === 'win32') {
          done()
        } else {
          fs.unlink(socketPath, () => {
            done()
          })
        }
      })
    })

    it('relaunches the app', function (done) {
      this.timeout(120000)

      let state = 'none'
      server.once('error', (error) => {
        done(error)
      })
      server.on('connection', (client) => {
        client.once('data', function (data) {
          if (String(data) === 'false' && state === 'none') {
            state = 'first-launch'
          } else if (String(data) === 'true' && state === 'first-launch') {
            done()
          } else {
            done(`Unexpected state: ${state}`)
          }
        })
      })

      const appPath = path.join(__dirname, 'fixtures', 'api', 'relaunch')
      ChildProcess.spawn(remote.process.execPath, [appPath])
    })
  })

  describe('app.setUserActivity(type, userInfo)', function () {
    if (process.platform !== 'darwin') {
      return
    }

    it('sets the current activity', function () {
      app.setUserActivity('com.electron.testActivity', {testData: '123'})
      assert.equal(app.getCurrentActivityType(), 'com.electron.testActivity')
    })
  })

  describe('app.importCertificate', function () {
    if (process.platform !== 'linux') return

    var w = null

    afterEach(function () {
      return closeWindow(w).then(function () { w = null })
    })

    it('can import certificate into platform cert store', function (done) {
      let options = {
        certificate: path.join(certPath, 'client.p12'),
        password: 'electron'
      }

      w = new BrowserWindow({
        show: false
      })

      w.webContents.on('did-finish-load', function () {
        assert.equal(w.webContents.getTitle(), 'authorized')
        done()
      })

      ipcRenderer.once('select-client-certificate', function (event, webContentsId, list) {
        assert.equal(webContentsId, w.webContents.id)
        assert.equal(list.length, 1)
        assert.equal(list[0].issuerName, 'Intermediate CA')
        assert.equal(list[0].subjectName, 'Client Cert')
        assert.equal(list[0].issuer.commonName, 'Intermediate CA')
        assert.equal(list[0].subject.commonName, 'Client Cert')
        event.sender.send('client-certificate-response', list[0])
      })

      app.importCertificate(options, function (result) {
        assert(!result)
        ipcRenderer.sendSync('set-client-certificate-option', false)
        w.loadURL(secureUrl)
      })
    })
  })

  describe('BrowserWindow events', function () {
    var w = null

    afterEach(function () {
      return closeWindow(w).then(function () { w = null })
    })

    it('should emit browser-window-focus event when window is focused', function (done) {
      app.once('browser-window-focus', function (e, window) {
        assert.equal(w.id, window.id)
        done()
      })
      w = new BrowserWindow({
        show: false
      })
      w.emit('focus')
    })

    it('should emit browser-window-blur event when window is blured', function (done) {
      app.once('browser-window-blur', function (e, window) {
        assert.equal(w.id, window.id)
        done()
      })
      w = new BrowserWindow({
        show: false
      })
      w.emit('blur')
    })

    it('should emit browser-window-created event when window is created', function (done) {
      app.once('browser-window-created', function (e, window) {
        setImmediate(function () {
          assert.equal(w.id, window.id)
          done()
        })
      })
      w = new BrowserWindow({
        show: false
      })
    })

    it('should emit web-contents-created event when a webContents is created', function (done) {
      app.once('web-contents-created', function (e, webContents) {
        setImmediate(function () {
          assert.equal(w.webContents.id, webContents.id)
          done()
        })
      })
      w = new BrowserWindow({
        show: false
      })
    })
  })

  describe('app.setBadgeCount API', function () {
    const shouldFail = process.platform === 'win32' ||
                       (process.platform === 'linux' && !app.isUnityRunning())

    afterEach(function () {
      app.setBadgeCount(0)
    })

    it('returns false when failed', function () {
      assert.equal(app.setBadgeCount(42), !shouldFail)
    })

    it('should set a badge count', function () {
      app.setBadgeCount(42)
      assert.equal(app.getBadgeCount(), shouldFail ? 0 : 42)
    })
  })

  describe('app.get/setLoginItemSettings API', function () {
    if (process.platform === 'linux') return

    const updateExe = path.resolve(path.dirname(process.execPath), '..', 'Update.exe')
    const processStartArgs = [
      '--processStart', `"${path.basename(process.execPath)}"`,
      '--process-start-args', `"--hidden"`
    ]

    beforeEach(function () {
      app.setLoginItemSettings({openAtLogin: false})
      app.setLoginItemSettings({openAtLogin: false, path: updateExe, args: processStartArgs})
    })

    afterEach(function () {
      app.setLoginItemSettings({openAtLogin: false})
      app.setLoginItemSettings({openAtLogin: false, path: updateExe, args: processStartArgs})
    })

    it('returns the login item status of the app', function () {
      app.setLoginItemSettings({openAtLogin: true})
      assert.deepEqual(app.getLoginItemSettings(), {
        openAtLogin: true,
        openAsHidden: false,
        wasOpenedAtLogin: false,
        wasOpenedAsHidden: false,
        restoreState: false
      })

      app.setLoginItemSettings({openAtLogin: true, openAsHidden: true})
      assert.deepEqual(app.getLoginItemSettings(), {
        openAtLogin: true,
        openAsHidden: process.platform === 'darwin', // Only available on macOS
        wasOpenedAtLogin: false,
        wasOpenedAsHidden: false,
        restoreState: false
      })

      app.setLoginItemSettings({})
      assert.deepEqual(app.getLoginItemSettings(), {
        openAtLogin: false,
        openAsHidden: false,
        wasOpenedAtLogin: false,
        wasOpenedAsHidden: false,
        restoreState: false
      })
    })

    it('allows you to pass a custom executable and arguments', () => {
      if (process.platform !== 'win32') return

      app.setLoginItemSettings({openAtLogin: true, path: updateExe, args: processStartArgs})

      assert.equal(app.getLoginItemSettings().openAtLogin, false)
      assert.equal(app.getLoginItemSettings({path: updateExe, args: processStartArgs}).openAtLogin, true)
    })
  })

  describe('isAccessibilitySupportEnabled API', function () {
    it('returns whether the Chrome has accessibility APIs enabled', function () {
      assert.equal(typeof app.isAccessibilitySupportEnabled(), 'boolean')
    })
  })

  describe('getPath(name)', function () {
    it('returns paths that exist', function () {
      assert.equal(fs.existsSync(app.getPath('exe')), true)
      assert.equal(fs.existsSync(app.getPath('home')), true)
      assert.equal(fs.existsSync(app.getPath('temp')), true)
    })

    it('throws an error when the name is invalid', function () {
      assert.throws(function () {
        app.getPath('does-not-exist')
      }, /Failed to get 'does-not-exist' path/)
    })

    it('returns the overridden path', function () {
      app.setPath('music', __dirname)
      assert.equal(app.getPath('music'), __dirname)
    })
  })

  describe('select-client-certificate event', function () {
    let w = null

    beforeEach(function () {
      w = new BrowserWindow({
        show: false,
        webPreferences: {
          partition: 'empty-certificate'
        }
      })
    })

    afterEach(function () {
      return closeWindow(w).then(function () { w = null })
    })

    it('can respond with empty certificate list', function (done) {
      w.webContents.on('did-finish-load', function () {
        assert.equal(w.webContents.getTitle(), 'denied')
        server.close()
        done()
      })

      ipcRenderer.sendSync('set-client-certificate-option', true)
      w.webContents.loadURL(secureUrl)
    })
  })

  describe('setAsDefaultProtocolClient(protocol, path, args)', () => {
    if (process.platform !== 'win32') return

    const protocol = 'electron-test'
    const updateExe = path.resolve(path.dirname(process.execPath), '..', 'Update.exe')
    const processStartArgs = [
      '--processStart', `"${path.basename(process.execPath)}"`,
      '--process-start-args', `"--hidden"`
    ]

    beforeEach(() => {
      app.removeAsDefaultProtocolClient(protocol)
      app.removeAsDefaultProtocolClient(protocol, updateExe, processStartArgs)
    })

    afterEach(() => {
      app.removeAsDefaultProtocolClient(protocol)
      assert.equal(app.isDefaultProtocolClient(protocol), false)
      app.removeAsDefaultProtocolClient(protocol, updateExe, processStartArgs)
      assert.equal(app.isDefaultProtocolClient(protocol, updateExe, processStartArgs), false)
    })

    it('sets the app as the default protocol client', () => {
      assert.equal(app.isDefaultProtocolClient(protocol), false)
      app.setAsDefaultProtocolClient(protocol)
      assert.equal(app.isDefaultProtocolClient(protocol), true)
    })

    it('allows a custom path and args to be specified', () => {
      assert.equal(app.isDefaultProtocolClient(protocol, updateExe, processStartArgs), false)
      app.setAsDefaultProtocolClient(protocol, updateExe, processStartArgs)
      assert.equal(app.isDefaultProtocolClient(protocol, updateExe, processStartArgs), true)
      assert.equal(app.isDefaultProtocolClient(protocol), false)
    })
  })

  describe('getFileIcon() API', function () {
    // FIXME Get these specs running on Linux CI
    if (process.platform === 'linux' && isCI) return

    const iconPath = path.join(__dirname, 'fixtures/assets/icon.ico')
    const sizes = {
      small: 16,
      normal: 32,
      large: process.platform === 'win32' ? 32 : 48
    }

    it('fetches a non-empty icon', function (done) {
      app.getFileIcon(iconPath, function (err, icon) {
        assert.equal(err, null)
        assert.equal(icon.isEmpty(), false)
        done()
      })
    })

    it('fetches normal icon size by default', function (done) {
      app.getFileIcon(iconPath, function (err, icon) {
        const size = icon.getSize()
        assert.equal(err, null)
        assert.equal(size.height, sizes.normal)
        assert.equal(size.width, sizes.normal)
        done()
      })
    })

    describe('size option', function () {
      it('fetches a small icon', function (done) {
        app.getFileIcon(iconPath, { size: 'small' }, function (err, icon) {
          const size = icon.getSize()
          assert.equal(err, null)
          assert.equal(size.height, sizes.small)
          assert.equal(size.width, sizes.small)
          done()
        })
      })

      it('fetches a normal icon', function (done) {
        app.getFileIcon(iconPath, { size: 'normal' }, function (err, icon) {
          const size = icon.getSize()
          assert.equal(err, null)
          assert.equal(size.height, sizes.normal)
          assert.equal(size.width, sizes.normal)
          done()
        })
      })

      it('fetches a large icon', function (done) {
        // macOS does not support large icons
        if (process.platform === 'darwin') return done()

        app.getFileIcon(iconPath, { size: 'large' }, function (err, icon) {
          const size = icon.getSize()
          assert.equal(err, null)
          assert.equal(size.height, sizes.large)
          assert.equal(size.width, sizes.large)
          done()
        })
      })
    })
  })

  describe('getAppMetrics() API', function () {
    it('returns memory and cpu stats of all running electron processes', function () {
      const appMetrics = app.getAppMetrics()
      assert.ok(appMetrics.length > 0, 'App memory info object is not > 0')
      const types = []
      for (const {memory, pid, type, cpu} of appMetrics) {
        assert.ok(memory.workingSetSize > 0, 'working set size is not > 0')
        assert.ok(memory.privateBytes > 0, 'private bytes is not > 0')
        assert.ok(memory.sharedBytes > 0, 'shared bytes is not > 0')
        assert.ok(pid > 0, 'pid is not > 0')
        assert.ok(type.length > 0, 'process type is null')
        types.push(type)
        assert.equal(typeof cpu.percentCPUUsage, 'number')
        assert.equal(typeof cpu.idleWakeupsPerSecond, 'number')
      }

      assert.ok(types.includes('GPU'))
      assert.ok(types.includes('Browser'))
      assert.ok(types.includes('Tab'))
    })
  })
})