import flet as ft
from pages.root import Nahrung
from pages.settings import Settings

def main(page: ft.Page):
    page.title = "Nahrungstracker"
    page.scroll = True

    # Initialize views
    nahrung = Nahrung()
    settings = Settings()

    # Store reference to the page in instances
    nahrung.page = page
    settings.page = page

    # Function to switch views
    def on_navigation_change(e):
        page.controls.clear()
        if e.control.selected_index == 0:
            page.appbar = nahrung.create_appbar()
            page.add(nahrung)
        elif e.control.selected_index == 1:
            page.appbar = ft.AppBar(title=ft.Text("Settings"))
            page.add(settings)
        page.update()

    page.navigation_bar = ft.NavigationBar(
        destinations=[
            ft.NavigationDestination(icon=ft.icons.HOME, label="Home"),
            ft.NavigationDestination(icon=ft.icons.SETTINGS, label="Settings")
        ],
        on_change=on_navigation_change,
    )

    page.appbar = nahrung.create_appbar()
    page.add(nahrung)
    page.update()  # Ensure the initial UI is updated

if __name__ == "__main__":
    ft.app(target=main)