import { app, BrowserWindow, Tray, Menu, nativeImage } from 'electron';
import * as path from 'path';
import { fileURLToPath } from 'url';
import * as dotenv from 'dotenv';
import { setupIpcHandlers, cleanupIpcHandlers } from './ipc-handlers.js';
import { initDatabase, closeDatabase } from './database.js';

// ES module equivalent of __dirname
const __filename = fileURLToPath(import.meta.url);
const __dirname = path.dirname(__filename);

// Load environment variables from .env file
// In dev: __dirname = dist/main, so go up to electron-app root
// In prod: __dirname = resources/app.asar/dist/main, .env should be in resources
const envPath = process.env.NODE_ENV === 'development' 
  ? path.join(__dirname, '../../.env')
  : path.join(process.resourcesPath, '.env');
dotenv.config({ path: envPath });

console.log('Loading .env from:', envPath);
console.log('WS_URL:', process.env.WS_URL);
console.log('API_URL:', process.env.API_URL);

let mainWindow: BrowserWindow | null = null;
let tray: Tray | null = null;
const isDev = process.env.NODE_ENV === 'development';

function getIconPath(): string {
  if (isDev) {
    return process.platform === 'win32'
      ? path.join(__dirname, '../../resources/icons/icon.ico')
      : path.join(__dirname, '../../resources/icons/logo.png');
  }

  return process.platform === 'win32'
    ? path.join(process.resourcesPath, 'icons', 'icon.ico')
    : path.join(process.resourcesPath, 'icons', 'logo.png');
}

function createWindow(): void {
  const iconPath = getIconPath();
  
  console.log('Window icon path:', iconPath);
  
  mainWindow = new BrowserWindow({
    width: 1400,
    height: 900,
    minWidth: 1000,
    minHeight: 700,
    frame: false,
    backgroundColor: '#0a0e27',
    icon: iconPath,
    show: false, // Don't show until loaded
    webPreferences: {
      preload: path.join(__dirname, 'preload.js'),
      nodeIntegration: false,
      contextIsolation: true,
      sandbox: true,
      devTools: true, // Enable dev tools in production for debugging
    },
    title: 'rmtPocketWatcher',
  });

  // Setup IPC handlers for WebSocket communication
  setupIpcHandlers(mainWindow);

  // Load the app
  if (isDev) {
    mainWindow.loadURL('http://localhost:5173');
    mainWindow.webContents.openDevTools();
  } else {
    const rendererPath = path.join(__dirname, '../renderer/index.html');
    console.log('Loading renderer from:', rendererPath);
    mainWindow.loadFile(rendererPath).catch(err => {
      console.error('Failed to load renderer:', err);
    });
  }

  // Show window and open dev tools to see errors
  mainWindow.webContents.on('did-fail-load', (_event, errorCode, errorDescription) => {
    console.error('Failed to load:', errorCode, errorDescription);
  });

  mainWindow.webContents.on('did-finish-load', () => {
    console.log('Window loaded successfully');
    mainWindow?.show();
  });

  mainWindow.on('closed', () => {
    cleanupIpcHandlers();
    mainWindow = null;
  });
}

function createTray(): void {
  // In dev: __dirname = dist/main, logo is at root
  // In prod: __dirname = resources/app.asar/dist/main
  const iconPath = getIconPath();
  
  console.log('Tray icon path:', iconPath);
  
  let icon = nativeImage.createFromPath(iconPath);
  if (process.platform !== 'win32') {
    icon = icon.resize({ width: 16, height: 16 });
  }
  
  tray = new Tray(icon);
  
  const contextMenu = Menu.buildFromTemplate([
    {
      label: 'Show rmtPocketWatcher',
      click: () => {
        if (mainWindow) {
          mainWindow.show();
          mainWindow.focus();
        }
      }
    },
    {
      label: 'Open DevTools',
      click: () => {
        if (mainWindow) {
          mainWindow.webContents.openDevTools();
        }
      }
    },
    {
      label: 'Reload',
      click: () => {
        if (mainWindow) {
          mainWindow.reload();
        }
      }
    },
    {
      label: 'Quit',
      click: () => {
        app.quit();
      }
    }
  ]);
  
  tray.setToolTip('rmtPocketWatcher');
  tray.setContextMenu(contextMenu);
  
  // Double-click to show window
  tray.on('double-click', () => {
    if (mainWindow) {
      mainWindow.show();
      mainWindow.focus();
    }
  });
}

app.whenReady().then(() => {
  initDatabase();
  createTray();
  createWindow();
});

app.on('window-all-closed', () => {
  // Quit the app when all windows are closed
  app.quit();
});

app.on('activate', () => {
  if (BrowserWindow.getAllWindows().length === 0) {
    createWindow();
  }
});

app.on('before-quit', () => {
  cleanupIpcHandlers();
  closeDatabase();
});