import test from 'ava'
import { resolve } from 'path'
import { intercept, release } from './helpers/console'
import { Nuxt, Builder, Utils } from '..'
import { truncateSync, readFileSync, writeFileSync } from 'fs'

const port = 4001
const url = (route) => 'http://localhost:' + port + route
const rootDir = resolve(__dirname, 'fixtures/basic')
const pluginPath = resolve(rootDir, 'plugins', 'watch.js')
const pluginContent = readFileSync(pluginPath)

let nuxt = null

// Init nuxt.js and create server listening on localhost:4000
test.serial('Init Nuxt.js', async t => {
  const options = {
    rootDir,
    buildDir: '.nuxt-dev',
    dev: true,
    build: {
      stats: false,
      profile: true,
      extractCSS: {
        allChunks: true
      }
    },
    plugins: [
      '~/plugins/watch.js'
    ]
  }

  const spies = await intercept({ log: true, stderr: true }, async () => {
    nuxt = new Nuxt(options)
    await new Builder(nuxt).build()
    await nuxt.listen(port, 'localhost')
  })

  t.true(spies.log.calledWithMatch('DONE'))
  t.true(spies.log.calledWithMatch('OPEN'))
})

test.serial('/extractCSS', async t => {
  const window = await nuxt.renderAndGetWindow(url('/extractCSS'))
  const html = window.document.head.innerHTML
  t.true(html.includes('vendor.css'))
  t.true(!html.includes('30px'))
  t.is(window.getComputedStyle(window.document.body).getPropertyValue('font-size'), '30px')
})

test.serial('remove mixins in live reloading', async t => {
  const spies = await intercept({ log: true, error: true, stderr: true })
  await nuxt.renderRoute(url('/'))
  t.true(spies.log.calledWith('I am mixin'))

  truncateSync(pluginPath)
  await new Promise(async (resolve, reject) => {
    let waitTimes = 0
    while (spies.log.neverCalledWithMatch(/Compiled successfully/)) {
      if (waitTimes++ >= 20) {
        t.fail('Dev server doesn\'t reload after 2000ms')
        reject(Error())
      }
      await Utils.waitFor(100)
    }
    resolve()
  })
  spies.log.reset()

  await nuxt.renderRoute(url('/'))
  t.true(spies.log.neverCalledWith('I am mixin'))
  t.is(spies.error.getCall(0).args[0].statusCode, 404)
  release()
})

test.serial('/stateless', async t => {
  const spies = await intercept()
  const window = await nuxt.renderAndGetWindow(url('/stateless'))
  const html = window.document.body.innerHTML
  t.true(html.includes('<h1>My component!</h1>'))
  t.true(spies.info.calledWithMatch('You are running Vue in development mode.'))
  release()
})

// test('/_nuxt/test.hot-update.json should returns empty html', async t => {
//   try {
//     await rp(url('/_nuxt/test.hot-update.json'))
//   } catch (err) {
//     t.is(err.statusCode, 404)
//     t.is(err.response.body, '')
//   }
// })

// Close server and ask nuxt to stop listening to file changes
test.after.always('Closing server and nuxt.js', async t => {
  writeFileSync(pluginPath, pluginContent)
  await nuxt.close()
})