using Chickensoft.AutoInject;
using Chickensoft.Introspection;
using Godot;
using System.Collections.Immutable;
using Zennysoft.Ma.Adapter;

namespace Zennysoft.Game.Ma;

[Meta(typeof(IAutoNode))]
public abstract partial class DungeonRoom : Node3D, IDungeonRoom
{
  public override void _Notification(int what) => this.Notify(what);

  [Node] public Marker3D PlayerSpawn { get; set; } = default!;

  [Node] private MeshInstance3D _minimap { get; set; } = default!;

  public bool IsPlayerInRoom => _isPlayerInRoom;

  public bool PlayerDiscoveredRoom => _playerDiscoveredRoom;

  public ImmutableList<IEnemy> EnemiesInRoom => _enemiesInRoom;

  [Node] private Area3D _room { get; set; } = default!;

  private ImmutableList<IEnemy> _enemiesInRoom;
  private bool _isPlayerInRoom = false;
  private bool _playerDiscoveredRoom = false;

  public void Setup()
  {
    _enemiesInRoom = [];
    _room.BodyEntered += Room_BodyEntered;
    _room.BodyExited += Room_BodyExited;
  }

  private void Room_BodyExited(Node3D body)
  {
    if (body is IEnemy enemy)
      _enemiesInRoom = _enemiesInRoom.Remove(enemy);
    if (body is IPlayer)
      _isPlayerInRoom = false;
  }
  private void Room_BodyEntered(Node3D body)
  {
    if (body is IEnemy enemy)
      _enemiesInRoom = _enemiesInRoom.Add(enemy);
    if (body is IPlayer)
      if (_playerDiscoveredRoom)
        _isPlayerInRoom = true;
      else
        OnPlayerDiscoveringRoom();
  }

  public ImmutableList<IEnemy> GetEnemiesInCurrentRoom()
  {
    return _enemiesInRoom;
  }

  private void OnPlayerDiscoveringRoom()
  {
    _isPlayerInRoom = true;
    _playerDiscoveredRoom = true;
    _minimap.Show();
  }
}