process.env.NODE_ENV = 'development'

const chalk = require('chalk')
const electron = require('electron')
const path = require('path')
// const { say } = require('cfonts')
const { spawn } = require('child_process')
const webpack = require('webpack')
const WebpackDevServer = require('webpack-dev-server')
const webpackHotMiddleware = require('webpack-hot-middleware')

const mainConfig = require('./main/webpack.config.dev')
const rendererConfig = require('./renderer/webpack.config.dev')

const { logStats } = require('./utils')

let electronProcess = null
let manualRestart = false
let hotMiddleware


function startRenderer() {
  return new Promise((resolve, reject) => {
    // rendererConfig.entry.renderer = [path.join(__dirname, 'dev-client')].concat(rendererConfig.entry.renderer)
    // rendererConfig.mode = 'development'
    const compiler = webpack(rendererConfig)
    hotMiddleware = webpackHotMiddleware(compiler, {
      log: false,
      heartbeat: 2500,
    })

    compiler.hooks.compilation.tap('compilation', compilation => {
      // console.log(Object.keys(compilation.hooks))
      compilation.hooks.htmlWebpackPluginAfterEmit.tapAsync('html-webpack-plugin-after-emit', (data, cb) => {
        hotMiddleware.publish({ action: 'reload' })
        cb()
      })
    })

    compiler.hooks.done.tap('done', stats => {
      // logStats('Renderer', 'Compile done')
      // logStats('Renderer', stats)
    })

    const server = new WebpackDevServer(
      compiler,
      {
        contentBase: path.join(__dirname, '../'),
        quiet: true,
        hot: true,
        historyApiFallback: true,
        clientLogLevel: 'warning',
        overlay: {
          errors: true,
        },
        before(app, ctx) {
          app.use(hotMiddleware)
          ctx.middleware.waitUntilValid(() => {
            resolve()
          })
        },
      }
    )

    server.listen(9080)
  })
}

function startMain() {
  return new Promise((resolve, reject) => {
    // mainConfig.entry.main = [path.join(__dirname, '../src/main/index.dev.js')].concat(mainConfig.entry.main)
    // mainConfig.mode = 'development'
    const compiler = webpack(mainConfig)

    compiler.hooks.watchRun.tapAsync('watch-run', (compilation, done) => {
      logStats('Main', chalk.white.bold('compiling...'))
      hotMiddleware.publish({ action: 'compiling' })
      done()
    })

    compiler.watch({}, (err, stats) => {
      if (err) {
        console.log(err)
        return
      }

      // logStats('Main', stats)

      if (electronProcess && electronProcess.kill) {
        manualRestart = true
        process.kill(electronProcess.pid)
        electronProcess = null
        startElectron()

        setTimeout(() => {
          manualRestart = false
        }, 5000)
      }

      resolve()
    })
  })
}

function startElectron() {
  let args = [
    '--inspect=5858',
    // 'NODE_ENV=development',
    path.join(__dirname, '../dist/electron/main.js'),
  ]

  // detect yarn or npm and process commandline args accordingly
  if (process.env.npm_execpath.endsWith('yarn.js')) {
    args = args.concat(process.argv.slice(3))
  } else if (process.env.npm_execpath.endsWith('npm-cli.js')) {
    args = args.concat(process.argv.slice(2))
  }

  electronProcess = spawn(electron, args)

  electronProcess.stdout.on('data', data => {
    electronLog(data, 'blue')
  })
  electronProcess.stderr.on('data', data => {
    electronLog(data, 'red')
  })

  electronProcess.on('close', () => {
    if (!manualRestart) process.exit()
  })
}

function electronLog(data, color) {
  let log = data.toString()
  if (/[0-9A-z]+/.test(log)) {
    console.log(chalk[color](log))
  }
}

function greeting() {
/*   const cols = process.stdout.columns
  let text = ''

  if (cols > 104) text = 'electron-vue'
  else if (cols > 76) text = 'electron-|vue'
  else text = false

  if (text) {
    say(text, {
      colors: ['yellow'],
      font: 'simple3d',
      space: false,
    })
  } else console.log(chalk.yellow.bold('\n  electron-vue')) */
  console.log(chalk.blue('getting ready...') + '\n')
}

function init() {
  greeting()

  Promise.all([startRenderer(), startMain()])
    .then(() => {
      startElectron()
    })
    .catch(err => {
      console.error(err)
    })
}

init()