/*
 * Copyright (C)  2021-2022 Kristóf Marussy <kristof@marussy.com>
 *
 * This file is part of Sophie.
 *
 * Sophie is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, version 3.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
 *
 * SPDX-License-Identifier: AGPL-3.0-only
 */

import { app, BrowserView, BrowserWindow } from 'electron';
import { autorun } from 'mobx';
import { getSnapshot, onPatch } from 'mobx-state-tree';
import { join } from 'path';
import {
  browserViewBounds,
  MainToRendererIpcMessage,
  paletteMode,
  RendererToMainIpcMessage,
} from '@sophie/shared';
import { URL } from 'url';

import {
  installDevToolsExtensions,
  openDevToolsWhenReady,
} from './devTools';
import { createRootStore } from './stores/RootStore';

const isSingleInstance = app.requestSingleInstanceLock();
const isDevelopment = import.meta.env.MODE === 'development';

if (!isSingleInstance) {
  app.quit();
  process.exit(0);
}

app.enableSandbox();

if (isDevelopment) {
  installDevToolsExtensions(app);
}

let mainWindow: BrowserWindow | null = null;

const store = createRootStore();

async function createWindow(): Promise<void> {
  mainWindow = new BrowserWindow({
    show: false,
    autoHideMenuBar: true,
    webPreferences: {
      sandbox: true,
      preload: join(__dirname, '../../preload/dist/index.cjs'),
    },
  });

  if (isDevelopment) {
    openDevToolsWhenReady(mainWindow);
  }

  mainWindow.on('ready-to-show', () => {
    mainWindow?.show();
  });

  const { webContents } = mainWindow;

  webContents.on('ipc-message', (_event, channel, ...args) => {
    try {
      switch (channel) {
        case RendererToMainIpcMessage.SharedStoreSnapshotRequest:
          webContents.send(MainToRendererIpcMessage.SharedStoreSnapshot, getSnapshot(store.shared));
          break;
        case RendererToMainIpcMessage.SetBrowserViewBounds:
          store.setBrowserViewBounds(browserViewBounds.parse(args[0]));
          break;
        case RendererToMainIpcMessage.SetPaletteMode:
          store.setPaletteMode(paletteMode.parse(args[0]))
          break;
        default:
          console.warn('Unknown IPC message:', channel, args);
          break;
      }
    } catch (err) {
      console.error('Error while processing IPC message:', channel, args, err);
    }
  });

  onPatch(store.shared, (patch) => {
    webContents.send(MainToRendererIpcMessage.SharedStorePatch, patch);
  });

  const pageUrl = (isDevelopment && import.meta.env.VITE_DEV_SERVER_URL !== undefined)
    ? import.meta.env.VITE_DEV_SERVER_URL
    : new URL('../renderer/dist/index.html', `file://${__dirname}`).toString();

  const browserView = new BrowserView({
    webPreferences: {
      sandbox: true,
      partition: 'service',
    },
  });

  browserView.setBackgroundColor('#fff');

  autorun(() => {
    browserView.setBounds(store.shared.browserViewBounds);
  });

  await mainWindow.loadURL(pageUrl);

  mainWindow.addBrowserView(browserView);

  return browserView.webContents.loadURL('https://git.marussy.com/sophie/about');
}

app.on('second-instance', () => {
  if (mainWindow !== null) {
    if (!mainWindow.isVisible()) {
      mainWindow.show();
    }
    if (mainWindow.isMinimized()) {
      mainWindow.restore();
    }
    mainWindow.focus();
  }
});

app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
    app.quit();
  }
});

app.whenReady().then(createWindow).catch((err) => {
  console.error('Failed to create window', err);
  process.exit(1);
});