# dashboard/callbacks/ui_callbacks.py

from dash import Input, Output, State, callback
from components.sidebar import Sidebar

@callback(
    Output("sidebar", "children"),
    Output("sidebar", "className"),
    Input("sidebar-state", "data"),
)
def render_sidebar(data):
    collapsed = data.get("collapsed", False)
    return Sidebar(collapsed=collapsed), f"sidebar{' collapsed' if collapsed else ''}"

@callback(
    Output("sidebar-state", "data"),
    Input("btn-toggle-sidebar", "n_clicks"),
    State("sidebar-state", "data"),
    prevent_initial_call=True,
)
def toggle_sidebar(n, data):
    if n is None:
        # Kein Klick, nichts ändern!
        return data
    collapsed = not data.get("collapsed", False)
    return {"collapsed": collapsed}