use bevy::{
    prelude::*,
    render::mesh::{Indices, VertexAttributeValues},
};
// use bevy_polyline::prelude::{Polyline, PolylineBundle, PolylineMaterial, PolylinePlugin};
use rand::{thread_rng, Rng};

use crate::{lights::AnimateCyberLightWireframe, planet::CyberPlanet};

pub const BISEXY_COLOR: Color = Color::hsla(292.0, 0.9, 0.60, 1.1);

// fn wireframe_planet(
//     mut commands: Commands,
//     mut meshes: ResMut<Assets<Mesh>>,
//     mut polylines: ResMut<Assets<Polyline>>,
//     mut polymats: ResMut<Assets<PolylineMaterial>>,
//     query: Query<&Handle<Mesh>, With<CyberPlanet>>,
// ) {
//     let handle = query.single();
//     let mesh = meshes.get_mut(handle).unwrap();
//     let vertices = mesh.attribute(Mesh::ATTRIBUTE_POSITION).unwrap();

//     let mut pts = Vec::with_capacity(vertices.len());

//     if let VertexAttributeValues::Float32x3(verts) = vertices {
//         let indices = mesh.indices().unwrap();
//         if let Indices::U32(indices) = indices {
//             for i in indices.iter() {
//                 let v = verts[*i as usize];
//                 let v = Vec3::from_slice(&v);
//                 pts.push(v);
//             }
//         }
//     }

//     let mut verts = Vec::with_capacity((pts.len() as f32 * 1.4) as usize);
//     for pts in pts.chunks(3) {
//         if pts.len() > 1 {
//             verts.extend_from_slice(pts);
//             verts.push(Vec3::NAN);
//         }
//     }

//     // don't need the indices anymore
//     mesh.duplicate_vertices();
//     mesh.compute_flat_normals();

//     commands.spawn(PolylineBundle {
//         polyline: polylines.add(Polyline { vertices: verts }),
//         material: polymats.add(PolylineMaterial {
//             width: 101.0,
//             color: BISEXY_COLOR,
//             perspective: true,
//             depth_bias: -0.001,
//         }),
//         ..Default::default()
//     });
// }

fn wireframify_lights(mut lights: Query<&mut AnimateCyberLightWireframe>) {
    let chance = 0.005;

    let rng = &mut thread_rng();

    for mut light in lights.iter_mut() {
        if rng.gen::<f32>() < chance {
            let new = !light.wired;
            light.wired = new;
        }
    }
}

// public plugin
pub struct CyberGlamorPlugin;
impl Plugin for CyberGlamorPlugin {
    fn build(&self, app: &mut App) {
        #[cfg(feature = "inspector")]
        {
            use bevy_rapier3d::render::{
                DebugRenderMode, DebugRenderStyle, RapierDebugRenderPlugin,
            };
            let style = DebugRenderStyle {
                multibody_joint_anchor_color: Color::GREEN.as_rgba_f32(),
                ..Default::default()
            };
            let mode = DebugRenderMode::CONTACTS
                | DebugRenderMode::SOLVER_CONTACTS
                | DebugRenderMode::JOINTS
                | DebugRenderMode::RIGID_BODY_AXES;

            let rplugin = RapierDebugRenderPlugin {
                style,
                always_on_top: true,
                enabled: true,
                mode,
            };

            app.add_plugin(rplugin);
        }

        app.add_system(wireframify_lights);
    }
}