using Chickensoft.AutoInject;
using Chickensoft.Collections;
using Chickensoft.GodotNodeInterfaces;
using Chickensoft.Introspection;
using Godot;
using System;
using System.Linq;
using Zennysoft.Game.Ma;
using Zennysoft.Ma.Adapter;

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

  [Dependency] protected IPlayer _player => this.DependOn(() => GetParent().GetChildren().OfType<IPlayer>().Single());

  [Dependency] public IMap _map => this.DependOn<IMap>();

  [Node] public IAnimationPlayer AnimationPlayer { get; set; } = default!;

  [Node] public Button ContinueButton { get; set; }
  [Node] public Button ExitButton { get; set; }
  [Node] public Label LevelLabel { get; set; }
  [Node] public Label EXPLabel { get; set; }
  [Node] public Label HPLabel { get; set; }
  [Node] public Label VTLabel { get; set; }
  [Node] public Label ATKLabel { get; set; }
  [Node] public Label DEFLabel { get; set; }
  [Node] public Label FloorNumber { get; set; }

  public void FadeIn() => AnimationPlayer.Play("fade_in");

  public void FadeOut() => AnimationPlayer.Play("fade_out");

  public event Action GoToNextFloor;

  public event Action Exit;

  public event Action TransitionCompleted;

  private bool _fadingIn = false;

  public void OnResolved()
  {
    EnableUISync();

    AnimationPlayer.AnimationFinished += AnimationPlayer_AnimationFinished;
    AnimationPlayer.AnimationStarted += AnimationPlayer_AnimationStarted;
    ContinueButton.Pressed += ContinueButton_Pressed;
    ExitButton.Pressed += ExitButton_Pressed;
  }

  private void CurrentFloorNumber_Sync(int _) => FloorNumber.Text = _map.NextFloorDisplayString;

  private void EquipmentComponent_EquipmentChanged(IEquipableItem obj)
  {
    Attack_Sync(0);
    Defense_Sync(0);
  }

  private void Attack_Sync(int _) => ATKLabel.Text = $"{_player.AttackComponent.CurrentAttack.Value}/{_player.AttackComponent.MaximumAttack.Value}+{_player.EquipmentComponent.BonusAttack}";
  private void Defense_Sync(int _) => DEFLabel.Text = $"{_player.DefenseComponent.CurrentDefense.Value}/{_player.DefenseComponent.MaximumDefense.Value}+{_player.EquipmentComponent.BonusDefense}";
  private void HP_Sync(int _) => HPLabel.Text = $"{_player.HealthComponent.CurrentHP.Value}/{_player.HealthComponent.MaximumHP.Value}";
  private void VT_Sync(int _) => VTLabel.Text = $"{_player.VTComponent.CurrentVT.Value}/{_player.VTComponent.MaximumVT.Value}";
  private void Exp_Sync(int _) => EXPLabel.Text = $"{_player.ExperiencePointsComponent.CurrentExp.Value}/{_player.ExperiencePointsComponent.ExpToNextLevel.Value}";
  private void Level_Sync(int _) => LevelLabel.Text = _player.ExperiencePointsComponent.Level.Value.ToString("D2");


  private void ExitButton_Pressed()
  {
    ContinueButton.FocusMode = FocusModeEnum.None;
    ExitButton.FocusMode = FocusModeEnum.None;
    SfxDatabase.Instance.Play(SoundEffect.SelectUI);
    FadeOut();
    Exit?.Invoke();
  }

  private void ContinueButton_Pressed()
  {
    ContinueButton.FocusMode = FocusModeEnum.None;
    ExitButton.FocusMode = FocusModeEnum.None;
    SfxDatabase.Instance.Play(SoundEffect.SelectUI);
    GoToNextFloor?.Invoke();
  }

  private void AnimationPlayer_AnimationStarted(StringName animName)
  {
    if (animName == "fade_in")
    {
      _fadingIn = true;
      ContinueButton.FocusMode = FocusModeEnum.None;
      ExitButton.FocusMode = FocusModeEnum.None;
    }
    if (animName == "fade_out")
    {
      DisableUISync();
      _fadingIn = false;
      ContinueButton.CallDeferred(MethodName.ReleaseFocus);
    }
  }

  private void AnimationPlayer_AnimationFinished(StringName animName)
  {
    if (animName == "fade_in")
    {
      ContinueButton.CallDeferred(MethodName.GrabFocus);
      _fadingIn = false;
      ContinueButton.FocusMode = FocusModeEnum.All;
      ExitButton.FocusMode = FocusModeEnum.All;
    }
    if (animName == "fade_out")
    {
      EnableUISync();
      TransitionCompleted?.Invoke();
    }
  }

  private void EnableUISync()
  {
    _player.ExperiencePointsComponent.Level.Sync += Level_Sync;
    _player.ExperiencePointsComponent.CurrentExp.Sync += Exp_Sync;
    _player.ExperiencePointsComponent.ExpToNextLevel.Sync += Exp_Sync;
    _player.HealthComponent.CurrentHP.Sync += HP_Sync;
    _player.HealthComponent.MaximumHP.Sync += HP_Sync;
    _player.VTComponent.CurrentVT.Sync += VT_Sync;
    _player.VTComponent.MaximumVT.Sync += VT_Sync;
    _player.AttackComponent.CurrentAttack.Sync += Attack_Sync;
    _player.AttackComponent.MaximumAttack.Sync += Attack_Sync;
    _player.DefenseComponent.CurrentDefense.Sync += Defense_Sync;
    _player.DefenseComponent.MaximumDefense.Sync += Defense_Sync;
    _player.EquipmentComponent.EquipmentChanged += EquipmentComponent_EquipmentChanged;
    _map.CurrentFloorNumber.Sync += CurrentFloorNumber_Sync;
  }

  private void DisableUISync()
  {
    _player.ExperiencePointsComponent.Level.Sync -= Level_Sync;
    _player.ExperiencePointsComponent.CurrentExp.Sync -= Exp_Sync;
    _player.ExperiencePointsComponent.ExpToNextLevel.Sync -= Exp_Sync;
    _player.HealthComponent.CurrentHP.Sync -= HP_Sync;
    _player.HealthComponent.MaximumHP.Sync -= HP_Sync;
    _player.VTComponent.CurrentVT.Sync -= VT_Sync;
    _player.VTComponent.MaximumVT.Sync -= VT_Sync;
    _player.AttackComponent.CurrentAttack.Sync -= Attack_Sync;
    _player.AttackComponent.MaximumAttack.Sync -= Attack_Sync;
    _player.DefenseComponent.CurrentDefense.Sync -= Defense_Sync;
    _player.DefenseComponent.MaximumDefense.Sync -= Defense_Sync;
    _player.EquipmentComponent.EquipmentChanged -= EquipmentComponent_EquipmentChanged;
    _map.CurrentFloorNumber.Sync -= CurrentFloorNumber_Sync;
  }
}