// SPDX-License-Identifier: EUPL-1.2+
// SPDX-FileCopyrightText: 2025 Johannes Süllner <johannes.suellner@mailbox.org>

mod pages;

use iced::Element;
use iced::Size;
use iced::Subscription;
use iced::Task;
use pages::Event;

fn main() -> iced::Result {
    iced::application(
        "Spectrum installer",
        SpectrumInstaller::update,
        SpectrumInstaller::view,
    )
    .window_size(Size::new(pages::WINDOW_WIDTH, pages::WINDOW_HEIGHT))
    .font(iced_fonts::BOOTSTRAP_FONT_BYTES)
    .resizable(false)
    .subscription(SpectrumInstaller::subscription)
    .run()
}

struct SpectrumInstaller {
    current_page: Box<dyn pages::Page>,
}
impl Default for SpectrumInstaller {
    fn default() -> Self {
        Self {
            current_page: Box::new(pages::INITAL_PAGE),
        }
    }
}

impl SpectrumInstaller {
    fn update(&mut self, event: pages::Event) -> Task<Event> {
        let (maybe_new_page, task) = self.current_page.update(event);
        if let Some(new_page) = maybe_new_page {
            self.current_page = new_page;
        }
        task
    }

    fn view(&self) -> Element<'_, pages::Event> {
        self.current_page.view()
    }

    fn subscription(&self) -> Subscription<pages::Event> {
        self.current_page.subscription()
    }
}