use crate::sim::prelude as sim;
use crate::{debug, game_setup, util};
use bevy::prelude::*;

mod prefab;
mod systems;

pub fn init(app: &mut App) {
    let app = app.add_plugins((
        game_setup::GameSetupPlugin,
        util::UtilPlugin,
        debug::DebugPlugin,
    ));

    // app.add_systems(Startup, systems::setup_demo_2d)
    //     .add_systems(Update, systems::demo_2d);

    let definitions = sim::Definitions::from_default_directory().unwrap();
    let game_world = sim::GameWorld::generate_random(&definitions);
    // let game_world = match std::fs::read(sim::SAVE_FILE) {
    //     Ok(data) => {
    //         info!("Reading world data from \"{}\"", sim::SAVE_FILE);
    //         bincode::deserialize(&data).expect("Loading world data from file")
    //     }
    //     Err(_) => {
    //         info!("Generating mock world...");
    //         let world = sim::GameWorld::generate_mock(&definitions);
    //         info!("Writing new world data to \"{}\"", sim::SAVE_FILE);
    //         std::fs::write(sim::SAVE_FILE, bincode::serialize(&world).unwrap()).unwrap();
    //         world
    //     }
    // };

    app.register_type::<sim::Definitions>()
        .register_type::<sim::GameWorld>()
        .insert_resource(definitions)
        .insert_resource(game_world)
        .add_systems(Startup, systems::setup_demo_3d)
        .add_systems(Update, (systems::demo_3d, systems::advance_time));
}