mod earth_parts;
mod gravity;
mod part;
mod heat;
mod drill;
mod craft;
mod damping;
pub mod planets;
pub mod player;
mod system_sets;
pub mod orbit;
pub mod plugins;
pub mod components;

use std::net::SocketAddr;
use aeronet::io::connection::{DisconnectReason, Disconnected, LocalAddr};
use aeronet::io::server::Server;
use aeronet::io::Session;
use aeronet_transport::lane::LaneKind;
use aeronet_transport::Transport;
use aeronet_websocket::server::{ServerConfig, WebSocketServer};
use crate::server::craft::craft_plugin;
use crate::server::damping::damping_plugin;
use crate::server::drill::drill_plugin;
use crate::server::earth_parts::spawn_parts_plugin;
use crate::server::gravity::newtonian_gravity_plugin;
use crate::server::part::part_management_plugin;
use crate::server::planets::planets_plugin;
use crate::server::player::player_management_plugin;
use crate::server::system_sets::{PlayerInputSet, WorldUpdateSet};
use crate::prelude::*;
use crate::server::orbit::OrbitPlugin;
use crate::server::player::thrust::server_thrust_plugin;
use crate::shared::net::LANES;

pub struct ServerPlugin {
    pub bind: SocketAddr
}

impl Plugin for ServerPlugin {
    fn build(&self, app: &mut App) {
        let bind = self.bind;
        app
            .add_plugins(planets_plugin)
            .add_plugins(newtonian_gravity_plugin)
            .add_plugins(player_management_plugin)
            .add_plugins(spawn_parts_plugin)
            .add_plugins(part_management_plugin)
            .add_plugins(server_thrust_plugin)
            /*.add_plugins(heat_cooling_plugin)
            .add_plugins(heat_radiation_plugin)
            .add_plugins(heat_conduction_plugin)*/
            .add_plugins(drill_plugin)
            .add_plugins(craft_plugin)
            .add_plugins(OrbitPlugin)
            .add_plugins(damping_plugin)
            .configure_sets(Update, WorldUpdateSet.before(PlayerInputSet))
            .add_observer(on_opened)
            .add_observer(on_connected)
            .add_observer(on_disconnected)
            .add_systems(Startup, move |mut commands: Commands| {
                commands.spawn(Name::new("websocket-server"))
                    .queue(WebSocketServer::open(ServerConfig::builder()
                        .with_bind_address(bind)
                        .with_no_encryption()));
            });
    }
}

#[derive(Component, Debug)]
pub struct ConnectedGameEntity {
    pub network_entity: Entity,
}
#[derive(Component)]
pub struct ConnectedNetworkEntity {
    pub game_entity: Entity,
}


fn on_opened(trigger: On<Add, Server>, servers: Query<&LocalAddr>) {
    let server = trigger.event_target();
    let local_addr = servers.get(server).unwrap();
    info!(server_entity=?server, "websocket server opened on {:?}", *local_addr);
}

fn on_connected(
    trigger: On<Add, Session>,
    clients: Query<&ChildOf>,
    sessions: Query<&Session>,
    mut commands: Commands,
) {
    let client = trigger.event_target();
    let Ok(&ChildOf(server)) = clients.get(client) else {
        return;
    };
    info!(?client, ?server, "client connected");

    let session = sessions.get(client).expect("must exist");

    commands.entity(client).insert(Transport::new(
        session,
        LANES,
        LANES,
        bevy::platform::time::Instant::now()
    ).expect("MTU is too small"));

    let player = commands
        .spawn(ConnectedGameEntity {
            network_entity: client,
        })
        .id();

    commands.entity(client).insert((
        //TODO: Replicated,
        ConnectedNetworkEntity {
            game_entity: player,
        },
    ));
}
fn on_disconnected(
    trigger: On<Disconnected>,
    clients: Query<&ChildOf>,
    player_entity: Query<&ConnectedNetworkEntity>,
    mut commands: Commands,
) {
    let client = trigger.event_target();
    let Ok(&ChildOf(server)) = clients.get(client) else {
        return;
    };
    match &trigger.reason {
        DisconnectReason::ByUser(reason) => {
            info!(?client, ?server, ?reason, "client disconnected by user");
        }
        DisconnectReason::ByPeer(reason) => {
            info!(?client, ?server, ?reason, "client disconnected by peer");
        }
        DisconnectReason::ByError(err) => {
            warn!(?client, ?server, "client disconnected with error: {err:?}");
        }
    }
    let Ok(other_entity) = player_entity.get(client) else {
        return;
    };
    let Ok(mut commands) = commands.get_entity(other_entity.game_entity) else {
        return;
    };
    commands.despawn();
}