Create interactive HTML flashcards from JSON card data.

Args: cards: List of flashcard data with 'front', 'back', and optional 'tags' title: Title for the flashcard set description: Description of the flashcard set template: Template type ('minimal', 'default', 'elegant') theme: Theme ('light' or 'dark')

Returns: HTML content as string

Generate PDF flashcards from JSON card data.

Args: cards: List of flashcard data with 'front', 'back', and optional 'tags' title: Title for the flashcard set description: Description of the flashcard set layout: Layout type ('single' or 'a4_8') output_path: Directory path to save the PDF file show_deck_name: Whether to show the title on the PDF show_card_index: Whether to show the card index on the PDF

Returns: Success message with file path and size information

Convert CSV content to flashcard JSON format.

Args: csv_content: Raw CSV content as string front_columns: Comma-separated column indices for card front (e.g., "0,1") back_columns: Comma-separated column indices for card back (e.g., "2,3") tags_column: Column index for tags (optional) has_header: Whether CSV has header row title: Title for the flashcard set description: Description of the flashcard set column_separator: Separator for multi-column content template: Template type for styling theme: Theme for styling

Returns: JSON string of complete flashcard data

Validate flashcard JSON data structure.

Args: flashcard_json: Flashcard data in JSON format

Returns: Validation result message