use avian3d::prelude::LinearVelocity;
use bevy::{
    app::Update,
    prelude::{
        AlignSelf, App, AssetServer, Color, Commands, Component, Entity, Plugin, Query, Res, Text,
        With,
    },
    text::{TextColor, TextFont},
    ui::{Node, TargetCamera},
};

use crate::bike::CyberBikeBody;

#[derive(Component)]
struct UpText;

pub(crate) fn setup_ui(
    mut commands: Commands,
    asset_server: Res<AssetServer>,
    target_camera: Entity,
) {
    commands
        .spawn((
            Node {
                align_self: AlignSelf::FlexEnd,
                ..Default::default()
            },
            // Use `Text` directly
            TextFont {
                font: asset_server.load("fonts/FiraMono-Medium.ttf"),
                font_size: 40.0,
                ..Default::default()
            },
            TextColor(Color::srgba_u8(255, 215, 0, 230)),
            Text::default(),
        ))
        .insert((UpText, TargetCamera(target_camera)));
}

fn update_ui(
    state_query: Query<&LinearVelocity, With<CyberBikeBody>>,
    mut text_query: Query<&mut Text, With<UpText>>,
) {
    let mut text = text_query.single_mut();
    let velocity = state_query.single();
    let speed = velocity.0.length();
    text.0 = format!("spd: {:.2}", speed);
}

pub struct CyberUIPlugin;

impl Plugin for CyberUIPlugin {
    fn build(&self, app: &mut App) {
        app.add_systems(Update, update_ui);
    }
}