using Chickensoft.AutoInject;
using Chickensoft.Collections;
using Chickensoft.Introspection;
using Chickensoft.LogicBlocks;
using Chickensoft.SaveFileBuilder;
using Godot;
using System.Collections.Generic;
using System.Linq;
using Zennysoft.Ma.Adapter;

namespace Zennysoft.Game.Ma;

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

  [Dependency]
  public IGame Game => this.DependOn<IGame>();

  [Dependency]
  public IPlayer Player => this.DependOn<IPlayer>();

  #region Save
  public ISaveChunk<MapData> MapChunk { get; set; } = default!;

  ISaveChunk<MapData> IProvide<ISaveChunk<MapData>>.Value() => MapChunk;

  [Dependency]
  public ISaveChunk<GameData> GameChunk => this.DependOn<ISaveChunk<GameData>>();
  #endregion

  [Export]
  private Godot.Collections.Array<PackedScene> _floors { get; set; } = default!;

  public List<string> FloorScenes { get; private set; } = [];

  public IDungeonFloor CurrentFloor { get; private set; }

  public AutoProp<int> CurrentFloorNumber { get; private set; } = new AutoProp<int>(0);

  public void OnResolved()
  {
	MapChunk = new SaveChunk<MapData>(
	  onSave: (chunk) => new MapData()
	  {
		FloorScenes = FloorScenes,
	  },
	  onLoad: (chunk, data) =>
	  {
		FloorScenes = data.FloorScenes;
	  }
	);

	GameChunk.AddChunk(MapChunk);

	this.Provide();

	InitializeMapData();
  }

  public void InitializeMapData()
  {
	ClearMap();
	FloorScenes = [];
	foreach (var floor in _floors)
	  FloorScenes.Add(floor.ResourcePath);
	CurrentFloorNumber.OnNext(0);
  }

  public void LoadMap()
  {
	LoadFloor();
	CurrentFloor.InitializeDungeon();
	var transform = GetPlayerSpawnPosition();
	Player.TeleportPlayer(transform);
	CurrentFloor.FloorIsLoaded = true;
  }

  private void ClearMap()
  {
	CurrentFloor?.CallDeferred(MethodName.QueueFree, []);
  }

  public void SpawnNextFloor()
  {
	ClearMap();
	LoadFloor();
	CurrentFloor.InitializeDungeon();
	var transform = GetPlayerSpawnPosition();
	Player.TeleportPlayer(transform);
	CurrentFloor.FloorIsLoaded = true;
	CurrentFloorNumber.OnNext(CurrentFloorNumber.Value + 1);
  }

  public IDungeonRoom GetPlayersCurrentRoom()
  {
	var rooms = CurrentFloor.Rooms;
	var playersRoom = rooms.SingleOrDefault(x => x.IsPlayerInRoom);
	return playersRoom;
  }

  public Transform3D GetPlayerSpawnPosition() => CurrentFloor.GetPlayerSpawnPoint();

  public void LoadFloor()
  {
	ClearMap();
	var currentFloorScene = FloorScenes.First();
	var instantiator = new Instantiator(GetTree());
	var loadedScene = instantiator.LoadAndInstantiate<Node3D>(currentFloorScene);
	AddChild(loadedScene);
	CurrentFloor = (IDungeonFloor)loadedScene;
	FloorScenes.Remove(currentFloorScene);
	var transform = GetPlayerSpawnPosition();
	Player.TeleportPlayer(transform);
  }
}