import { app, shell, BrowserWindow, ipcMain, Notification } from 'electron'
import { join } from 'path'
import { electronApp, optimizer, is } from '@electron-toolkit/utils'
import icon from '../../resources/icon.png?asset'
import { autoUpdater } from 'electron-updater'
import Store from './lib/Store'
import { registerToastTarget, showErrorToast, showSuccessToast, showToast } from './lib/Toast'

autoUpdater.autoDownload = false;
autoUpdater.autoInstallOnAppQuit = true;

const store = new Store({
  configName: 'user-preferences',
  defaults: {
    showSetupWindow: true
  }
});

let mainWindow: BrowserWindow;
let splashWindow: BrowserWindow;
let setupWindow: BrowserWindow;

function createSplashWindow(): void {
  splashWindow = new BrowserWindow({
    width: 350, 
    height: 350, 
    transparent: true, 
    frame: false, 
    alwaysOnTop: true 
  });
  splashWindow.loadFile('src/renderer/splash.html');
  splashWindow.center();
  splashWindow.setSkipTaskbar(true);
  splashWindow.show();
}

function createSetupWindow(): void {
  setupWindow = new BrowserWindow({
    width: 380, 
    height: 390,
    show: false,
    autoHideMenuBar: true,
    ...(process.platform === 'linux' ? { icon } : {}),
    webPreferences: {
      preload: join(__dirname, '../preload/index.js'),
      sandbox: false
    },
  });
  setupWindow.loadFile('src/renderer/setup.html');
}

function createMainWindow(): void {
  // Create the browser window.
  mainWindow = new BrowserWindow({
    width: 900,
    height: 670,
    show: false,
    autoHideMenuBar: true,
    ...(process.platform === 'linux' ? { icon } : {}),
    webPreferences: {
      preload: join(__dirname, '../preload/index.js'),
      sandbox: false
    }
  })

  mainWindow.webContents.setWindowOpenHandler((details) => {
    shell.openExternal(details.url)
    return { action: 'deny' }
  })

  // HMR for renderer base on electron-vite cli.
  // Load the remote URL for development or the local html file for production.
  if (is.dev && process.env['ELECTRON_RENDERER_URL']) {
    mainWindow.loadURL(process.env['ELECTRON_RENDERER_URL'])
  } else {
    mainWindow.loadFile(join(__dirname, '../renderer/index.html'))
  }
}

function finishSetup(): void {
  store.set('showSetupWindow', false);
  createMainWindow();
  mainWindow.on('ready-to-show', () => {
    registerToastTarget(mainWindow);
    mainWindow.show();
    setupWindow.close();
  })
}

function createWindow(): void {
  createSplashWindow();
  
  let showSetupWindow = store.get('showSetupWindow');
  if (showSetupWindow) {
    createSetupWindow();
    setupWindow.on('ready-to-show', () => {
      splashWindow.close();
      setupWindow.show();
    })
  } else {
    createMainWindow();
    mainWindow.on('ready-to-show', () => {
      registerToastTarget(mainWindow);
      checkForUpdates();
      splashWindow.close();
      mainWindow.show();
    })
  }
  
}

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
// Some APIs can only be used after this event occurs.
app.whenReady().then(() => {
  // Set app user model id for windows
  electronApp.setAppUserModelId('com.electron')

  // Default open or close DevTools by F12 in development
  // and ignore CommandOrControl + R in production.
  // see https://github.com/alex8088/electron-toolkit/tree/master/packages/utils
  app.on('browser-window-created', (_, window) => {
    optimizer.watchWindowShortcuts(window)
  })

  // IPC test
  ipcMain.on('ping', () => console.log('pong'))
  ipcMain.on('finish-setup', () => finishSetup())

  ipcMain.handle('get-version', () => app.getVersion())

  createWindow()

  app.on('activate', function () {
    // On macOS it's common to re-create a window in the app when the
    // dock icon is clicked and there are no other windows open.
    if (BrowserWindow.getAllWindows().length === 0) createWindow()
  })
})

// Quit when all windows are closed, except on macOS. There, it's common
// for applications and their menu bar to stay active until the user quits
// explicitly with Cmd + Q.
app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit()
  }
})

// In this file you can include the rest of your app's specific main process
// code. You can also put them in separate files and require them here.
function showNotification(value: any) {
  new Notification({
    title: value,
  }).show()
}

function checkForUpdates() {
  autoUpdater.checkForUpdates();
  console.log(`Checking for updates. Current version ${app.getVersion()}`);
  showToast(`Checking for updates. Current version ${app.getVersion()}`);
  showNotification(`Checking for updates. Current version ${app.getVersion()}`);
}

/*New Update Available*/
autoUpdater.on("update-available", () => {
  console.log(`Update available. Current version ${app.getVersion()}`);
  showToast(`Update available. Current version ${app.getVersion()}`);
  showNotification(`Update available. Current version ${app.getVersion()}`);
  let pth = autoUpdater.downloadUpdate();
  console.log(pth);
  showToast(`Download update path : ${pth}`);
  showNotification(`Download update path : ${pth}`);
});

autoUpdater.on("update-not-available", () => {
  console.log(`No update available. Current version ${app.getVersion()}`);
  showToast(`No update available. Current version ${app.getVersion()}`);
  showNotification(`No update available. Current version ${app.getVersion()}`);
});

/*Download Completion Message*/
autoUpdater.on("update-downloaded", () => {
  console.log(`Update downloaded. Current version ${app.getVersion()}`);
  showSuccessToast(`Update downloaded. Current version ${app.getVersion()}`);
  showNotification(`Update downloaded. Current version ${app.getVersion()}`);
});

autoUpdater.on("error", (info) => {
  console.log(info);
  showErrorToast(`Error: ${info}`);
  showNotification(`Error: ${info}`);
});