use crate::AppState;

use bevy::{
	input::{keyboard::KeyCode, Input},
	prelude::*,
	sprite::MaterialMesh2dBundle,
};

pub struct MenuPlugin;

impl Plugin for MenuPlugin {
	fn build(&self, app: &mut App) {
		app.add_system_set(SystemSet::on_enter(AppState::Menu).with_system(setup))
			.add_system_set(
				SystemSet::on_update(AppState::Menu).with_system(keyboard_input_system),
			);
	}
}

fn setup(mut commands: Commands, asset_server: Res<AssetServer>) {
	commands.spawn_bundle(Text2dBundle {
		text: Text::from_section(
			"Press ENTER",
			TextStyle {
				font: asset_server.get_handle("Cantarell-VF.odt"),
				font_size: 64.0,
				color: Color::WHITE,
			},
		)
		.with_alignment(TextAlignment::CENTER),
		..Default::default()
	});
}

fn keyboard_input_system(
	keyboard_input: Res<Input<KeyCode>>,
	mut app_state: ResMut<State<AppState>>,
) {
	if keyboard_input.just_pressed(KeyCode::Return) {
		app_state.replace(AppState::Game).unwrap()
	}
}