const { app, BrowserWindow, dialog, ipcMain } = require('electron');
const path = require('path');
const { scanDirectory, extractFileMetadata } = require('./utils/fileUtils');

// Handle creating/removing shortcuts on Windows when installing/uninstalling.
try {
  if (require('electron-squirrel-startup')) {
    app.quit();
  }
} catch (error) {
  // electron-squirrel-startup not available on non-Windows platforms
  console.log('electron-squirrel-startup not available (expected on non-Windows platforms)');
}

let mainWindow;

// Create the browser window.
function createWindow() {
  mainWindow = new BrowserWindow({
    width: 1200,
    height: 800,
    webPreferences: {
      nodeIntegration: true,
      contextIsolation: false,
      enableRemoteModule: true,
    },
  });

  // and load the index.html of the app.
  mainWindow.loadFile('index.html');

  // Open the DevTools.
  // mainWindow.webContents.openDevTools();
}

// IPC handler for selecting directory
ipcMain.handle('select-directory', async () => {
  try {
    const result = await dialog.showOpenDialog({
      properties: ['openDirectory']
    });
    
    if (result.canceled) {
      return { success: false, error: 'No directory selected' };
    }
    
    return { 
      success: true, 
      directory: result.filePaths[0] 
    };
  } catch (error) {
    return { success: false, error: error.message };
  }
});

// IPC handler for scanning directory
ipcMain.handle('scan-directory', async (event, directoryPath) => {
  try {
    if (!directoryPath) {
      return { success: false, error: 'No directory path provided' };
    }
    
    const files = await scanDirectory(directoryPath);
    return { success: true, files: files };
  } catch (error) {
    return { success: false, error: error.message };
  }
});

// Enhanced logging for debugging problematic files
ipcMain.handle('log-file-info', async (event, filePath) => {
  try {
    const fs = require('fs');
    const stats = fs.statSync(filePath);
    return { 
      success: true, 
      fileInfo: {
        path: filePath,
        size: stats.size,
        modified: stats.mtime,
        isFile: stats.isFile(),
        isDirectory: stats.isDirectory()
      }
    };
  } catch (error) {
    return { success: false, error: error.message };
  }
});

// IPC handler for renaming file
ipcMain.handle('rename-file', async (event, { oldPath, newName }) => {
  try {
    const fs = require('fs');
    const newPath = path.join(path.dirname(oldPath), newName);
    
    // Check if file exists
    if (!fs.existsSync(oldPath)) {
      return { success: false, error: 'Original file does not exist' };
    }
    
    // Check if new name is different
    if (oldPath === newPath) {
      return { success: true, message: 'File name unchanged' };
    }
    
    // Rename the file
    fs.renameSync(oldPath, newPath);
    
    return { success: true, message: 'File renamed successfully' };
  } catch (error) {
    return { success: false, error: error.message };
  }
});

// IPC handler for searching TVDB (placeholder)
ipcMain.handle('search-tvdb', async (event, query) => {
  try {
    // This is a placeholder - in a real implementation, this would call TheTVDB API
    // For now, we'll return mock data to demonstrate the UI functionality
    const mockResults = [
      { id: 1, seriesName: 'Breaking Bad' },
      { id: 2, seriesName: 'Game of Thrones' },
      { id: 3, seriesName: 'The Office' },
      { id: 4, seriesName: 'Friends' },
      { id: 5, seriesName: 'Stranger Things' }
    ];
    
    // Filter results based on query
    const filteredResults = mockResults.filter(show => 
      show.seriesName.toLowerCase().includes(query.toLowerCase())
    );
    
    return { success: true, results: filteredResults };
  } catch (error) {
    return { success: false, error: error.message };
  }
});

// Test function to verify API connectivity
ipcMain.handle('test-tvdb-api', async () => {
  try {
    // This is a placeholder test - in a real implementation, this would test actual API connectivity
    // For now, we'll simulate a successful API test
    return { 
      success: true, 
      message: 'TVDB API test successful',
      timestamp: new Date().toISOString()
    };
  } catch (error) {
    return { success: false, error: error.message };
  }
});

// This method will be called when Electron has finished
// initialization and is ready to create browser windows.
app.whenReady().then(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();
  }
});

app.on('activate', () => {
  // On OS X 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();
  }
});