import os
import sys
from pymxs import runtime as rt

def log(msg):
    """Log detalhado no Listener (F11)"""
    print(f"[VR4Life Install Log] {msg}")

def install_plugin():
    rt.clearListener()
    log("=== CONFIGURANDO MENU VR4Life (INSTALAÇÃO NO FINAL) ===")

    # 1. Configuração de Caminhos
    user_scripts_dir = rt.getDir(rt.name("userScripts"))
    plugin_dir = os.path.join(user_scripts_dir, "VR4Life_Plugin").replace("\\", "/")
    
    if plugin_dir not in sys.path:
        sys.path.append(plugin_dir)
    
    engine_script = os.path.join(plugin_dir, "run_vr4life.py").replace("\\", "/")
    update_script = os.path.join(plugin_dir, "vr4life_updater.py").replace("\\", "/")
    
    product_name = "VR4Life"
    category = "Immerse Games"

    # 2. Registro das Macros
    log("Registrando Macros no sistema...")
    rt.execute(f'''
    macroScript VR4Life_Open category:"{category}" buttonText:"VR4Life Engine"
    ( on execute do ( python.ExecuteFile @"{engine_script}" ) )
    ''')

    rt.execute(f'''
    macroScript VR4Life_Update category:"{category}" buttonText:"Atualizar Plugin"
    ( on execute do ( python.ExecuteFile @"{update_script}" ) )
    ''')

    # 3. Lógica de Menu para 3ds Max 2025/2026 (CUI)
    try:
        log("Gerenciando interface via CUI Manager (2025+)...")
        cui_mgr = rt.cui.getContentManager()
        main_menu_bar = cui_mgr.mainMenuBar
        
        # Limpeza de versões anteriores
        for i in range(main_menu_bar.numItems - 1, -1, -1):
            item = main_menu_bar.getItem(i)
            if item.displayText == product_name or item.displayText == "1-VR4Life":
                main_menu_bar.removeItem(item)
                log(f"Limpando menu antigo: {item.displayText}")

        # Criação do Menu
        new_menu = cui_mgr.createCustomMenu(product_name)
        new_menu.addActionItem("VR4Life_Open", category)
        new_menu.addActionItem("VR4Life_Update", category)
        
        # addItem sem o segundo parâmetro ou com -1 coloca no FINAL da lista
        main_menu_bar.addItem(new_menu, -1) 
        
        rt.execute("cui.getContentManager().updateMainMenuBar()")
        log("Menu VR4Life adicionado ao final da barra principal.")
            
    except AttributeError:
        # 4. Lógica Legada (2024 e anteriores)
        log("Usando menuMan (Modo Legado)...")
        main_menu = rt.menuMan.getMainMenuBar()
        existing_menu = rt.menuMan.findMenu(product_name)
        if existing_menu: rt.menuMan.unRegisterMenu(existing_menu)
            
        new_menu = rt.menuMan.createMenu(product_name)
        new_menu.addItem(rt.menuMan.createActionItem("VR4Life_Open", category), -1)
        new_menu.addItem(rt.menuMan.createActionItem("VR4Life_Update", category), -1)
        
        sub_menu_item = rt.menuMan.createSubMenuItem(product_name, new_menu)
        
        # No menuMan, -1 também adiciona ao final
        main_menu.addItem(sub_menu_item, -1)
        rt.menuMan.updateMenuBar()
        log("Menu legado adicionado ao final.")

    # 5. Execução Automática
    if os.path.exists(engine_script):
        log("Executando interface do plugin...")
        rt.python.ExecuteFile(engine_script)

    log("=== PROCESSO FINALIZADO COM LOGS ATIVOS ===")
    rt.messageBox(f"Instalação do '{product_name}' concluída no final do menu!", title=product_name)

if __name__ == "__main__":
    install_plugin()