// Function to get a unique identifier for a cart item
export function getUniqueItemKey(item: any, boxGroupId?: string, index?: number): string {
  // Start with the merchandise id
  let key = item.merchandise.id;
  
  // Add the item's own id if available
  if (item.id) {
    key = `${key}-${item.id}`;
  }
  
  // Add box group id if it's part of a box
  if (boxGroupId) {
    key = `${boxGroupId}-${key}`;
  }
  
  // Add index as fallback to ensure uniqueness
  if (index !== undefined) {
    key = `${key}-${index}`;
  }
  
  return key;
}