use bevy_ecs::world::World;
use winit::{
    application::ApplicationHandler,
    event::WindowEvent,
    event_loop::ActiveEventLoop,
    window::{Window, WindowId},
};

use crate::core::app::App;

use super::config::WindowConfig;

pub struct WindowState {
    app: App,
    window: Option<Window>,
}

impl WindowState {
    pub fn new(app: App) -> Self {
        Self { app, window: None }
    }

    fn world(&self) -> &World {
        self.app.world()
    }
}

impl ApplicationHandler for WindowState {
    fn resumed(&mut self, event_loop: &ActiveEventLoop) {
        let window_config = self.world().get_resource::<WindowConfig>().unwrap();

        let window = event_loop.create_window(window_config.into()).unwrap();
        self.window = Some(window);
    }

    fn window_event(&mut self, event_loop: &ActiveEventLoop, _id: WindowId, event: WindowEvent) {
        match event {
            WindowEvent::CloseRequested => {
                log::debug!("The close button was pressed; stopping");
                event_loop.exit();
            }
            _ => {}
        }
    }
}