use bevy::prelude::*;
use bevy::render::render_resource::{AsBindGroup, ShaderRef};

pub struct ShadingPlugin;
impl Plugin for ShadingPlugin {
    fn build(&self, app: &mut App) {
        app.add_plugins(MaterialPlugin::<JupitersRing>::default());
        app.add_plugins(MaterialPlugin::<AsteroidSurface>::default());
    }
}

#[derive(Asset, TypePath, AsBindGroup, Debug, Clone)]
pub struct JupitersRing {
    pub alpha_mode: AlphaMode,
    #[uniform(0)]
    pub ring_radius: f32,
    #[uniform(1)]
    pub jupiter_radius: f32,
}

impl Material for JupitersRing {
    fn fragment_shader() -> ShaderRef {
        "shaders/jupiters_rings.wgsl".into()
    }
    fn alpha_mode(&self) -> AlphaMode {
        self.alpha_mode
    }
}


#[derive(Asset, TypePath, AsBindGroup, Debug, Clone)]
pub struct AsteroidSurface {
}

impl Material for AsteroidSurface {
    fn fragment_shader() -> ShaderRef {
        "shaders/material_asteroid.wgsl".into()
    }
}