#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
pub mod bridge;
#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
pub mod poll;

#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
pub use bridge::{GC_PORT_COUNT, GcPort};
#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
pub use poll::{GcAdapterSnapshot, GcPortState};

#[derive(Resource, Default)]
pub struct GcPorts {
    pub entities: [Option<Entity>; 4],
    #[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
    pub(super) last: [poll::GcPortState; 4],
}

#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
use bevy::input::InputSystems;
#[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
use bevy::input::gamepad::{gamepad_connection_system, gamepad_event_processing_system};
use bevy::prelude::*;

#[derive(Default)]
pub struct GamecubeAdapterPlugin;

impl Plugin for GamecubeAdapterPlugin {
    fn build(&self, app: &mut App) {
        app.init_resource::<GcPorts>();

        #[cfg(all(feature = "gamecube-adapter", not(target_os = "windows")))]
        {
            let Ok(snapshot) = poll::spawn_poll_thread() else {
                // No adapter connected; leave GcPorts empty and skip wiring the
                // polling systems.
                return;
            };

            app.insert_resource(snapshot).add_systems(
                PreUpdate,
                (
                    bridge::gc_connection_system.before(gamepad_connection_system),
                    bridge::gc_event_system
                        .after(gamepad_connection_system)
                        .before(gamepad_event_processing_system),
                )
                    .in_set(InputSystems),
            );
        }
    }
}