"""Cookie parsing utilities for WebSocket authentication."""



def parse_cookies(cookie_header: str) -> dict[str, str]:
    """Parse HTTP cookie header into a dictionary."""
    cookies = {}
    if not cookie_header:
        return cookies

    for cookie in cookie_header.split(";"):
        cookie = cookie.strip()
        if "=" in cookie:
            name, value = cookie.split("=", 1)
            cookies[name.strip()] = value.strip()

    return cookies


def extract_access_token_from_cookies(cookie_header: str) -> str | None:
    """Extract access token from HTTP cookies."""
    cookies = parse_cookies(cookie_header)
    return cookies.get("access_token")