//! Movement phase plugin — position resolution and spatial indexing.
//!
//! All systems run in [`TickPhase::Movement`]. Intra-phase ordering:
//! - pathfinding → follow_paths → validate_movement → cleanup_path_blocked
//! - After validate_movement: spatial index, listening focus, zone crossings, tier systems

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

use crate::tick_phases::TickPhase;

pub struct MovementPlugin;

impl Plugin for MovementPlugin {
    fn build(&self, app: &mut App) {
        app.init_resource::<super::spatial::NaiveSpatialIndex>()
            .init_resource::<super::zone::ZoneCrossEventQueue>()
            .init_resource::<super::zone::PreviousPlayerZone>()
            .add_systems(
                Update,
                (
                    // Core movement chain (strict sequence)
                    super::pathfinding::compute_paths,
                    super::path_follow::follow_paths.after(super::pathfinding::compute_paths),
                    super::movement::validate_movement.after(super::path_follow::follow_paths),
                    super::path_follow::cleanup_path_blocked
                        .after(super::movement::validate_movement),
                    // Post-movement indexing (all after validate_movement, parallel with each other)
                    super::spatial::sync_spatial_index.after(super::movement::validate_movement),
                    super::listening::update_listening_focus
                        .after(super::movement::validate_movement),
                    super::zone::detect_zone_crossings.after(super::movement::validate_movement),
                )
                    .in_set(TickPhase::Movement),
            );
    }
}