const { expect } = require('chai')
const { remote } = require('electron')
const path = require('path')

const { emittedNTimes, emittedOnce } = require('./events-helpers')
const { closeWindow } = require('./window-helpers')

const { BrowserWindow } = remote

describe('renderer nodeIntegrationInSubFrames', () => {
  const generateTests = (description, webPreferences) => {
    describe(description, () => {
      let w

      beforeEach(async () => {
        await closeWindow(w)
        w = new BrowserWindow({
          show: false,
          width: 400,
          height: 400,
          webPreferences: {
            preload: path.resolve(__dirname, 'fixtures/sub-frames/preload.js'),
            nodeIntegrationInSubFrames: true,
            ...webPreferences
          }
        })
      })

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

      it('should load preload scripts in top level iframes', async () => {
        const detailsPromise = emittedNTimes(remote.ipcMain, 'preload-ran', 2)
        w.loadFile(path.resolve(__dirname, 'fixtures/sub-frames/frame-container.html'))
        const [event1, event2] = await detailsPromise
        expect(event1[0].frameId).to.not.equal(event2[0].frameId)
        expect(event1[0].frameId).to.equal(event1[2])
        expect(event2[0].frameId).to.equal(event2[2])
      })

      it('should load preload scripts in nested iframes', async () => {
        const detailsPromise = emittedNTimes(remote.ipcMain, 'preload-ran', 3)
        w.loadFile(path.resolve(__dirname, 'fixtures/sub-frames/frame-with-frame-container.html'))
        const [event1, event2, event3] = await detailsPromise
        expect(event1[0].frameId).to.not.equal(event2[0].frameId)
        expect(event1[0].frameId).to.not.equal(event3[0].frameId)
        expect(event2[0].frameId).to.not.equal(event3[0].frameId)
        expect(event1[0].frameId).to.equal(event1[2])
        expect(event2[0].frameId).to.equal(event2[2])
        expect(event3[0].frameId).to.equal(event3[2])
      })

      it('should correctly reply to the main frame with using event.reply', async () => {
        const detailsPromise = emittedNTimes(remote.ipcMain, 'preload-ran', 2)
        w.loadFile(path.resolve(__dirname, 'fixtures/sub-frames/frame-container.html'))
        const [event1] = await detailsPromise
        const pongPromise = emittedOnce(remote.ipcMain, 'preload-pong')
        event1[0].reply('preload-ping')
        const details = await pongPromise
        expect(details[1]).to.equal(event1[0].frameId)
      })

      it('should correctly reply to the sub-frames with using event.reply', async () => {
        const detailsPromise = emittedNTimes(remote.ipcMain, 'preload-ran', 2)
        w.loadFile(path.resolve(__dirname, 'fixtures/sub-frames/frame-container.html'))
        const [, event2] = await detailsPromise
        const pongPromise = emittedOnce(remote.ipcMain, 'preload-pong')
        event2[0].reply('preload-ping')
        const details = await pongPromise
        expect(details[1]).to.equal(event2[0].frameId)
      })

      it('should correctly reply to the nested sub-frames with using event.reply', async () => {
        const detailsPromise = emittedNTimes(remote.ipcMain, 'preload-ran', 3)
        w.loadFile(path.resolve(__dirname, 'fixtures/sub-frames/frame-with-frame-container.html'))
        const [, , event3] = await detailsPromise
        const pongPromise = emittedOnce(remote.ipcMain, 'preload-pong')
        event3[0].reply('preload-ping')
        const details = await pongPromise
        expect(details[1]).to.equal(event3[0].frameId)
      })

      it('should not expose globals in main world', async () => {
        const detailsPromise = emittedNTimes(remote.ipcMain, 'preload-ran', 2)
        w.loadFile(path.resolve(__dirname, 'fixtures/sub-frames/frame-container.html'))
        const details = await detailsPromise
        const senders = details.map(event => event[0].sender)
        await new Promise((resolve) => {
          let resultCount = 0
          senders.forEach(sender => {
            sender.webContents.executeJavaScript('window.isolatedGlobal', result => {
              if (webPreferences.contextIsolation) {
                expect(result).to.be.null()
              } else {
                expect(result).to.equal(true)
              }
              resultCount++
              if (resultCount === senders.length) {
                resolve()
              }
            })
          })
        })
      })
    })
  }

  generateTests('without sandbox', {})
  generateTests('with sandbox', { sandbox: true })
  generateTests('with contextIsolation', { contextIsolation: true })
  generateTests('with contextIsolation + sandbox', { contextIsolation: true, sandbox: true })
})