//! Shows how to use devtools.
//!
//! ## Key Bindings
//! - `Q`: Show DevTool
//! - `E`: Close DevTool

use bevy::input::common_conditions::input_just_pressed;
use bevy::prelude::*;
use bevy_cef::prelude::*;

fn main() {
    App::new()
        .add_plugins((
            DefaultPlugins,
            CefPlugin {
                command_line_config: CommandLineConfig {
                    switches: ["--in-process-gpu"].to_vec(),
                    ..Default::default()
                },
                ..Default::default()
            },
        ))
        .add_systems(
            Startup,
            (spawn_camera, spawn_directional_light, spawn_webview),
        )
        .add_systems(
            Update,
            (
                show_devtool.run_if(input_just_pressed(KeyCode::KeyQ)),
                close_devtool.run_if(input_just_pressed(KeyCode::KeyE)),
            ),
        )
        .run();
}

#[derive(Component)]
struct DebugWebview;

fn spawn_camera(mut commands: Commands) {
    commands.spawn((
        Camera3d::default(),
        Transform::from_translation(Vec3::new(0., 0., 3.)).looking_at(Vec3::ZERO, Vec3::Y),
    ));
}

fn spawn_directional_light(mut commands: Commands) {
    commands.spawn((
        DirectionalLight::default(),
        Transform::from_translation(Vec3::new(1., 1., 1.)).looking_at(Vec3::ZERO, Vec3::Y),
    ));
}

fn spawn_webview(
    mut commands: Commands,
    mut meshes: ResMut<Assets<Mesh>>,
    mut materials: ResMut<Assets<WebviewExtendStandardMaterial>>,
) {
    commands.spawn((
        DebugWebview,
        WebviewSource::new("https://github.com/not-elm/bevy_cef"),
        Mesh3d(meshes.add(Plane3d::new(Vec3::Z, Vec2::ONE))),
        MeshMaterial3d(materials.add(WebviewExtendStandardMaterial {
            base: StandardMaterial {
                unlit: true,
                emissive: LinearRgba::WHITE,
                ..default()
            },
            ..default()
        })),
    ));
}

fn show_devtool(mut commands: Commands, webviews: Query<Entity, With<DebugWebview>>) {
    commands.trigger(RequestShowDevTool {
        webview: webviews.single().unwrap(),
    });
}

fn close_devtool(mut commands: Commands, webviews: Query<Entity, With<DebugWebview>>) {
    commands.trigger(RequestCloseDevtool {
        webview: webviews.single().unwrap(),
    });
}