"""
sn_basis/ui/navigation.py

Zentrale Navigation (Menü + Toolbar) für sn_basis.
"""

from typing import Any, List, Tuple

from sn_basis.functions.qt_wrapper import (
    QAction,
    QMenu,
    QToolBar,
    QActionGroup,
)
from sn_basis.functions import (
    get_main_window,
    add_toolbar,
    remove_toolbar,
    add_menu,
    remove_menu,
)


class Navigation:
    def __init__(self):
        self.actions = []
        self.menu = None
        self.toolbar = None
        self.plugin_group = None
       


    def init_ui(self):
        print(">>> Navigation.init_ui() CALLED")

        main_window = get_main_window()
        if not main_window:
            return
        # ----------------------------------------- 
        # Vorherige Toolbars entfernen 
        # ----------------------------------------- 
        for tb in main_window.findChildren(QToolBar): 
            if tb.objectName() == "LnoSachsenToolbar":
                remove_toolbar(tb) 
                tb.deleteLater() 
                
        # ----------------------------------------- 
        # Menü und Toolbar neu erzeugen 
        # -----------------------------------------
        self.menu = QMenu("LNO Sachsen", main_window)
        add_menu(self.menu)

        self.toolbar = QToolBar("LNO Sachsen", main_window)
        self.toolbar.setObjectName("LnoSachsenToolbar")
        add_toolbar(self.toolbar)

        test_action = QAction("TEST ACTION", main_window)
        self.menu.addAction(test_action)
        self.toolbar.addAction(test_action)
        self.plugin_group = QActionGroup(main_window) 
        self.plugin_group.setExclusive(True)


    # -----------------------------------------------------
    # Actions
    # -----------------------------------------------------

    def add_action(self, text, callback, tooltip="", priority=100):
        if not self.plugin_group:
            return None

        action = QAction(text, get_main_window())
        action.setToolTip(tooltip)
        action.setCheckable(True)
        action.triggered.connect(callback)

        self.plugin_group.addAction(action)
        self.actions.append((priority, action))
        return action

    def finalize_menu_and_toolbar(self):
        if not self.menu or not self.toolbar:
            return

        self.actions.sort(key=lambda x: x[0])

        self.menu.clear()
        self.toolbar.clear()

        for _, action in self.actions:
            self.menu.addAction(action)
            self.toolbar.addAction(action)

    def set_active_plugin(self, active_action):
        for _, action in self.actions:
            action.setChecked(False)
        if active_action:
            active_action.setChecked(True)

    # -----------------------------------------------------
    # Cleanup
    # -----------------------------------------------------

    def remove_action(self, action):
        if not action:
            return

        if self.menu:
            self.menu.removeAction(action)
        if self.toolbar:
            self.toolbar.removeAction(action)

        self.actions = [(p, a) for p, a in self.actions if a != action]

    def remove_all(self):
        if self.menu:
            remove_menu(self.menu)
            self.menu = None

        if self.toolbar:
            remove_toolbar(self.toolbar)
            self.toolbar = None

        self.actions.clear()
        self.plugin_group = None