mod audio;
mod camera;
mod world;
mod settings;
mod hud;
mod actor;
mod effects;

#[allow(dead_code)]
mod nature;

use bevy::window::{Window, WindowMode, PrimaryWindow, CursorGrabMode};
use bevy::diagnostic::FrameTimeDiagnosticsPlugin;
use bevy::prelude::*;
use bevy_embedded_assets::{EmbeddedAssetPlugin, PluginMode};
use std::env;

fn main() {
    let args: Vec<String> = env::args().collect();
    if args.len() > 1 {
        if args[1] == "--version" || args[1] == "-v" {
            let version = option_env!("CARGO_PKG_VERSION").unwrap();
            let name = option_env!("CARGO_PKG_NAME").unwrap();
            let homepage = option_env!("CARGO_PKG_HOMEPAGE").unwrap();
            println!("{name} {version}");
            println!("License: GNU GPL version 3: https://gnu.org/licenses/gpl.html");
            println!("{homepage}");
            return;
        }
    }
    if cfg!(debug_assertions) {
        App::new().add_plugins(OutFlyPlugin).run();
    } else {
        // In release builds, embed assets into the binary
        App::new().add_plugins((
            EmbeddedAssetPlugin { mode: PluginMode::ReplaceDefault },
            OutFlyPlugin,
        )).run();
    }
}

pub struct OutFlyPlugin;
impl Plugin for OutFlyPlugin {
    fn build(&self, app: &mut App) {
        app.add_systems(Startup, setup);
        app.add_systems(Update, handle_input);
        app.insert_resource(settings::Settings::default());
        app.add_plugins((
            DefaultPlugins,//.set(ImagePlugin::default_nearest()),
            FrameTimeDiagnosticsPlugin,

            world::WorldPlugin,
            camera::CameraControllerPlugin,
            hud::HudPlugin,
            actor::ActorPlugin,
            audio::AudioPlugin,
            effects::EffectsPlugin,
        ));
    }
}

fn setup(
    mut windows: Query<&mut Window, With<PrimaryWindow>>
) {
    for mut window in &mut windows {
        window.cursor.grab_mode = CursorGrabMode::Locked;
        window.cursor.visible = false;
        window.mode = WindowMode::Fullscreen;
        window.title = "OutFly".to_string();
    }
}

fn handle_input(
    keyboard_input: Res<ButtonInput<KeyCode>>,
    mut settings: ResMut<settings::Settings>,
    mut app_exit_events: ResMut<Events<bevy::app::AppExit>>
) {
    if keyboard_input.pressed(settings.key_exit) {
        app_exit_events.send(bevy::app::AppExit);
    }
    if keyboard_input.just_pressed(settings.key_restart) {
        settings.reset();
    }
}