use noesis_runtime::view::{FrameworkElement, View};
use noesis_runtime::xaml_provider::{set_xaml_provider, XamlProvider};

// Implement a XAML provider against your asset pipeline.
struct MyXaml(std::collections::HashMap<String, Vec<u8>>);
impl XamlProvider for MyXaml {
    fn as_any_mut(&mut self) -> &mut dyn std::any::Any { self }
    fn load_xaml(&mut self, uri: &str) -> Option<&[u8]> {
        self.0.get(uri).map(Vec::as_slice)
    }
}

// Once per process.
noesis_runtime::init();

// Install the provider. The returned guard owns the registration;
// drop it to clear the global slot.
let provider = MyXaml(/* ... */);
let _guard = set_xaml_provider(provider);

// Load a scene, create a view, and drive it from your frame loop.
let element = FrameworkElement::load("MainMenu.xaml")
    .expect("XAML failed to parse");
let mut view = View::create(element);
view.set_size(1920, 1080);
view.activate();
loop {
    // Forward input to view.mouse_*, view.key_*, view.touch_*
    let _changed = view.update(time_seconds);
    // Your renderer drives view.renderer().
}

noesis_runtime::shutdown();

use std::sync::Arc;
use bevy::prelude::*;
use noesis_bevy::{NoesisCamera, NoesisPlugin, NoesisView, XamlRegistry};

const MENU_XAML: &str = r#"<Grid xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
  <TextBlock Text="Hello, Noesis!" Foreground="White"
             HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Grid>"#;

fn main() {
    App::new()
        .add_plugins(DefaultPlugins)
        .add_plugins(NoesisPlugin::default())
        .add_systems(Startup, setup)
        .run();
}

fn setup(mut commands: Commands, mut xaml: ResMut<XamlRegistry>) {
    // Register XAML by URI. For real projects, load .xaml files through the
    // asset server instead; the loader feeds the same registry.
    xaml.insert("menu.xaml", Arc::new(MENU_XAML.as_bytes().to_vec()));

    // A view is a `NoesisView` component on a 2D camera tagged `NoesisCamera`.
    // Noesis renders the scene offscreen and composites it onto that camera.
    commands.spawn((
        Camera2d,
        NoesisCamera,
        NoesisView {
            xaml_uri: "menu.xaml".to_string(),
            size: UVec2::new(1920, 1080),
            ..default()
        },
    ));
}