def save_new_language()

in app/app.py [0:0]

• 20 lines of code
• 5 McCabe index (conditional complexity)

def save_new_language(lang_name, system_prompt):
    """Save the new language and system prompt to persistent storage if available, otherwise to local file."""
    global LANGUAGES  
    
    languages_path, use_persistent = get_persistent_storage_path("languages.json")
    local_path = Path(__file__).parent / "languages.json"
    
    if languages_path.exists():
        with open(languages_path, "r", encoding="utf-8") as f:
            data = json.load(f)
    else:
        data = {}
    
    data[lang_name] = system_prompt

    with open(languages_path, "w", encoding="utf-8") as f:
        json.dump(data, f, ensure_ascii=False, indent=2)
    
    if use_persistent and local_path != languages_path:
        try:
            with open(local_path, "w", encoding="utf-8") as f:
                json.dump(data, f, ensure_ascii=False, indent=2)
        except Exception as e:
            print(f"Error updating local backup: {e}")
    
    LANGUAGES.update({lang_name: system_prompt})
    return gr.Group(visible=False), gr.HTML("<script>window.location.reload();</script>"), gr.Dropdown(choices=list(LANGUAGES.keys()))