/**
 * Lazy loading implementations for helpyourneighbour backend
 */

// Example of lazy loading for images
const lazyLoadImage = (imagePath) => {
  // Return a function that loads the image only when needed
  return async () => {
    // Simulate image loading
    const imageBuffer = await loadImage(imagePath);
    return imageBuffer;
  };
};

// Example of lazy loading for assets
const lazyLoadAsset = (assetId) => {
  // Return a promise that resolves when asset is loaded
  return new Promise((resolve, reject) => {
    // Simulate asset loading
    setTimeout(() => {
      resolve({ id: assetId, data: 'asset_data' });
    }, 100);
  });
};

// Example of pagination implementation
const getPaginatedRequests = async (page = 1, limit = 10) => {
  const offset = (page - 1) * limit;
  
  const query = `
    SELECT r.id, r.title, r.description, r.created_at
    FROM requests r
    ORDER BY r.created_at DESC
    LIMIT ? OFFSET ?
  `;
  
  return await db.query(query, [limit, offset]);
};

module.exports = {
  lazyLoadImage,
  lazyLoadAsset,
  getPaginatedRequests
};