const {
  app, BrowserWindow, Menu, ipcMain
} = require('electron')// 引入electron
let win; let
  loadingWin
Menu.setApplicationMenu(null) // 去掉菜单栏
app.commandLine.appendSwitch('wm-window-animations-disabled') // 拖动闪屏


// 截图
function screenShot () {
  return new Promise((res) => {
    const file = execFile(join(__dirname, './screen/PrintScr.exe'))
    file.on('exit', (e: Any) => {
      if (e === 1) {
        // 剪切板读buffer图片
        const clip = clipboard.readImage()
        if (clip.isEmpty()) {
          // eslint-disable-next-line prefer-promise-reject-errors
          res(null)
        } else {
          // 转成buffer base64
          const png = clipboard.readImage().toPNG()
          const img = 'data:image/png;base64,' + png.toString('base64')
          res(img)
        }
      } else {
        // eslint-disable-next-line prefer-promise-reject-errors
        res(null)
      }
    })
  })
}

// 消息通知
function notifiction (title, options) {
	const WebNotification =  window.Notification || window.mozNotification || window.webkitNotification
    const isTrue = WebNotification.requestPermission(result => {
      return (result === 'granted') // granted（允许） || denied（拒绝）
    })
    const noti =  new WebNotification(title, options)
    noti.onclick=()=>{
      console.log('关闭')
    }
}


// 创建loading 窗口
const showLoading = () => {
  loadingWin = new BrowserWindow({
    frame: false, // 无边框（窗口、工具栏等），只包含网页内容
    width: 200,
    height: 200,
    resizable: false,
    center: true,
    alwaysOnTop: true,
    transparent: true // 窗口是否支持透明，如果想做高级效果最好为true
  })
  loadingWin.loadFile('loading/index.html')
  loadingWin.on('close', () => {
    loadingWin = null
  })
}
// 创建主程序 窗口
const createWindow = () => {
  win = new BrowserWindow({
    maxWidth: 1920,
    maxHeight: 1080,
    minWidth: 1620,
    minHeight: 900,
    webPreferences: {
      contextIsolation: false,
      nodeIntegration: true,
      webSecurity: false // 去掉跨越
    },
    show: false
  })// 创建一个窗口
  // 在窗口内要展示的内容index.html 就是打包生成的index.html
  win.loadFile('dist/index.html')
  // 开启调试工具
  // win.webContents.openDevTools();
  // 事件监听
  win.on('close', () => {
    // 回收BrowserWindow对象
    win = null
  })
}

// 事件监听
app.on('ready', async () => {
  showLoading()
  createWindow()
  // 监听渲染进行
  ipcMain.once('close-loading', () => {
    loadingWin.close()
    win.show()
  })
  // 监听截图
  ipcMain.once('screen', () => {
    screenShot().then(res => {
      if (!res) return
      // 发送到子进程
      win.webContents.send('screenData', res)
    })
  })
})

app.on('window-all-closed', () => {
  app.quit()
})

app.on('activate', () => {
  if (win == null) {
    createWindow()
  }
})