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

use super::{BUTTON_TEXT_SIZE, Event, MARGIN_VERTICAL, Page, TITLE_TEXT_SIZE, UpdateResult};
use crate::{center_horizontal_in_container, center_in_container};
use iced::{
    Element, Length, Task,
    widget::{column, image, space, text},
};

const LOGO_PATH_GLOBAL: &str = "/usr/share/icons/hicolor/400x400/apps/spectrum-installer.png";
const LOGO_WIDTH: f32 = 400.0;

pub struct PageWelcome {}

impl PageWelcome {
    pub fn new() -> Self {
        Self {}
    }
}

#[derive(Clone, Debug)]
pub enum PageWelcomeEvent {
    Continue,
}

impl Page for PageWelcome {
    fn update(&mut self, event: Event) -> UpdateResult {
        if let Event::PageWelcome(page_welcome_event) = event {
            match page_welcome_event {
                PageWelcomeEvent::Continue => {
                    return (
                        Some(Box::new(super::disk_selection::PageDiskSelection::new())),
                        Task::none(),
                    );
                }
            }
        }
        (None, Task::none())
    }

    fn view(&self) -> Element<'_, Event> {
        let button_content = text("Next").size(BUTTON_TEXT_SIZE);

        let main_content = column![
            space().height(MARGIN_VERTICAL),
            center_horizontal_in_container!(
                text("Welcome to the installation of Spectrum!").size(TITLE_TEXT_SIZE)
            ),
            space().height(MARGIN_VERTICAL),
            center_in_container!(image(LOGO_PATH_GLOBAL).width(Length::Fixed(LOGO_WIDTH)))
        ];

        super::layout::bottom_buttons_layout(
            [[(
                button_content.into(),
                Some(Event::PageWelcome(PageWelcomeEvent::Continue)),
            )]],
            main_content.into(),
        )
    }
}