// Simulation module - Core simulation plugin and systems
// Implements deterministic tick-based simulation (D-010 principle 4)

use bevy_app::prelude::*;
use bevy_ecs::schedule::IntoScheduleConfigs;

pub mod contraband;
pub mod conversation;
pub mod dialogue;
pub mod input;
pub mod interaction;
pub mod inventory;
pub mod listening;
pub mod monologue;
pub mod movement;
pub mod path_follow;
pub mod pathfinding;
pub mod rng;
pub mod sound;
pub mod stance;
pub mod tier;
pub mod time;
pub mod zone;

/// Core simulation plugin
/// Manages simulation time, RNG, input processing, and tier transitions
pub struct SimulationPlugin;

impl Plugin for SimulationPlugin {
    fn build(&self, app: &mut App) {
        // Tier marker components (D-026) — must register before behavior systems
        app.add_plugins(tier::TierPlugin);

        // Initialize core simulation resources
        app.init_resource::<time::SimulationTime>()
            .insert_resource(rng::SimRng::new(0))
            .init_resource::<input::InputQueue>()
            .init_resource::<crate::knowledge::EntityRegistry>()
            .init_resource::<sound::SoundEventQueue>()
            .add_systems(
                Update,
                (
                    input::process_player_input,
                    pathfinding::compute_paths.after(input::process_player_input),
                    path_follow::follow_paths.after(pathfinding::compute_paths),
                    movement::validate_movement.after(path_follow::follow_paths),
                    path_follow::cleanup_path_blocked.after(movement::validate_movement),
                    listening::update_listening_focus.after(movement::validate_movement),
                    contraband::check_contraband_scan
                        .after(movement::validate_movement)
                        .before(crate::perception::observer::compute_observer_snapshot),
                    conversation::run_npc_conversations
                        .after(movement::validate_movement)
                        .before(sound::collect_sound_events),
                    sound::collect_sound_events
                        .after(movement::validate_movement)
                        .before(crate::perception::observer::compute_observer_snapshot),
                    time::advance_tick.after(path_follow::cleanup_path_blocked),
                ),
            );

        tracing::debug!("SimulationPlugin initialized");
    }
}