import {
  app,
  desktopCapturer,
  ipcMain,
  shell
} from 'electron';
import * as fs from 'fs';
import * as fsp from 'fs/promises';

export function setupSystemHandlers(): void {
  ipcMain.handle('open-external', async (_event, url: string) => {
    if (typeof url === 'string' && (url.startsWith('http://') || url.startsWith('https://'))) {
      await shell.openExternal(url);
      return true;
    }

    return false;
  });

  ipcMain.handle('get-sources', async () => {
    const sources = await desktopCapturer.getSources({
      types: ['window', 'screen'],
      thumbnailSize: { width: 150, height: 150 }
    });

    return sources.map((source) => ({
      id: source.id,
      name: source.name,
      thumbnail: source.thumbnail.toDataURL()
    }));
  });

  ipcMain.handle('get-app-data-path', () => app.getPath('userData'));

  ipcMain.handle('file-exists', async (_event, filePath: string) => {
    try {
      await fsp.access(filePath, fs.constants.F_OK);
      return true;
    } catch {
      return false;
    }
  });

  ipcMain.handle('read-file', async (_event, filePath: string) => {
    const data = await fsp.readFile(filePath);

    return data.toString('base64');
  });

  ipcMain.handle('write-file', async (_event, filePath: string, base64Data: string) => {
    const buffer = Buffer.from(base64Data, 'base64');

    await fsp.writeFile(filePath, buffer);
    return true;
  });

  ipcMain.handle('ensure-dir', async (_event, dirPath: string) => {
    await fsp.mkdir(dirPath, { recursive: true });
    return true;
  });
}