use bevy::{input_focus::InputFocus, prelude::*};

use crate::GameState;

#[derive(Component)]
pub struct Menu;

pub fn setup_menu(mut commands: Commands) {
    //setup menu text
    commands.spawn((
        Text::new("NOW IT'S YOUR CHANCE TO BE\nA\nBIG\nFELORONI"),
        TextFont {
            font_size: 32.,
            ..default()
        },
        TextLayout::new_with_justify(Justify::Center),
        Menu,
        Node {
            position_type: PositionType::Absolute,
            top: percent(25),
            right: percent(33),
            ..default()
        },
    ));
    //setup button
    commands.spawn((
        Button,
        Node {
            width: px(150),
            height: px(65),
            border: UiRect::all(px(5)),
            justify_content: JustifyContent::Center,
            align_items: AlignItems::Center,
            ..default()
        },
        Menu,
        children![(Text::new("Igron"))],
    ));
}

pub fn button_system(
    mut commands: Commands,
    mut input_focus: ResMut<InputFocus>,
    interaction_query: Query<(Entity, &Interaction, &mut Button), Changed<Interaction>>,
) {
    for (entity, interaction, mut button) in interaction_query {
        match interaction {
            Interaction::Pressed => {
                input_focus.set(entity);
                button.set_changed();
                commands.set_state(GameState::Game);
            }
            Interaction::Hovered => {
                input_focus.set(entity);
                button.set_changed();
            }
            Interaction::None => {
                input_focus.clear();
            }
        }
    }
}

pub fn cleanup_menu(mut commands: Commands, query: Query<Entity, With<Menu>>) {
    for entity in query {
        commands.get_entity(entity).unwrap().despawn();
    }
}