Page Enhancement and Context

def add_metadata_to_page(app, pagename, templatename, context, doctree):
    """
    Add metadata to page context for enhanced rendering.
    
    This function:
    - Adds root document title to navbar context
    - Sets page title from document structure
    - Generates page description from content (160 chars)
    - Adds author information if configured
    - Sets up translation context
    - Configures search bar text
    
    Parameters:
    - app: Sphinx application instance
    - pagename: Name of the page being processed
    - templatename: Template being used for rendering
    - context: Template context dictionary (modified in-place)
    - doctree: Document tree for the page
    """

def hash_html_assets(app, pagename, templatename, context, doctree):
    """
    Add digest hashes to CSS and JS assets for cache busting.
    
    Processes theme-specific assets and adds hash-based query parameters
    to ensure browsers reload updated files.
    
    Parameters:
    - app: Sphinx application instance
    - pagename: Name of the page being processed
    - templatename: Template being used
    - context: Template context (modified to include hashed assets)
    - doctree: Document tree for the page
    """

def hash_assets_for_files(assets: list, theme_static: Path, context, app):
    """
    Generate hashes for specific asset files and update context.
    
    Parameters:
    - assets: List of asset paths relative to theme static folder
    - theme_static: Path to theme's static asset directory
    - context: Template context containing css_files and script_files
    - app: Sphinx application for adding assets with digests
    """

def update_templates(app, pagename, templatename, context, doctree):
    """
    Update template names and process template sections.
    
    Processes template sections like 'theme_footer_content_items',
    handling comma-separated strings and adding .html extensions
    to template names without suffixes.
    
    Parameters:
    - app: Sphinx application instance
    - pagename: Name of the page being processed
    - templatename: Template being used
    - context: Template context (modified for template processing)
    - doctree: Document tree for the page
    """

def _gen_hash(path: str) -> str:
    """
    Generate SHA1 digest hash for a file path.
    
    Uses LRU cache for performance optimization.
    
    Parameters:
    - path: File path to hash
    
    Returns:
    SHA1 hexdigest of file contents
    """

from sphinx_book_theme import add_metadata_to_page

# In a Sphinx event handler
def my_page_handler(app, pagename, templatename, context, doctree):
    # Add theme metadata
    add_metadata_to_page(app, pagename, templatename, context, doctree)
    
    # Access added metadata
    print(f"Page title: {context.get('pagetitle')}")
    print(f"Page description: {context.get('page_description')}")
    print(f"Root title: {context.get('root_title')}")

from sphinx_book_theme import hash_html_assets, get_html_theme_path

# Hash theme assets for a page
def process_assets(app, pagename, templatename, context, doctree):
    hash_html_assets(app, pagename, templatename, context, doctree)
    
    # Assets now have digest hashes:
    # styles/sphinx-book-theme.css?digest=abc123
    # scripts/sphinx-book-theme.js?digest=def456

from sphinx_book_theme import hash_assets_for_files, get_html_theme_path

# Hash custom assets
custom_assets = ["styles/custom.css", "scripts/custom.js"]
theme_static = get_html_theme_path() / "static"

hash_assets_for_files(custom_assets, theme_static, context, app)