using Godot;
using System.Linq;
using static Godot.Projection;

public partial class StageGUI : Control
{
   [Signal]
   public delegate void OnCharacterSelectionMadeEventHandler(Player player);
   [Signal]
   public delegate void CapricornP1SelectedEventHandler();
   [Signal]
   public delegate void CapricornP2SelectedEventHandler();
   [Signal]
   public delegate void PiscesP1SelectedEventHandler();
   [Signal]
   public delegate void PiscesP2SelectedEventHandler();
   [Signal]
   public delegate void SagP1SelectedEventHandler();
   [Signal]
   public delegate void SagP2SelectedEventHandler();
   [Signal]
   public delegate void ScorpioP1SelectedEventHandler();
   [Signal]
   public delegate void ScorpioP2SelectedEventHandler();

   private GameManager _gameManager;

   public override void _Ready()
   {
      _gameManager = GetTree().Root.GetNode<GameManager>("Main/GameManager");
   }

   public void OnCharacterSelect(Player player)
   {
      if (player.GameOver)
         return;

      player.IsSelectingCharacter = true;
   }

   public override void _Process(double delta)
   {
      if (_gameManager.Players.ElementAt(0).IsSelectingCharacter)
      {
         if (Input.IsActionJustPressed("p1_right"))
         {
            _gameManager.SetToNextCharacter(_gameManager.Players.ElementAt(0));
            ChangeBG(_gameManager.Players.ElementAt(0));
         }
         if (Input.IsActionJustPressed("p1_left"))
         {
            _gameManager.SetToPreviousCharacter(_gameManager.Players.ElementAt(0));
            ChangeBG(_gameManager.Players.ElementAt(0));
         }

         if (Input.IsActionJustPressed("p1_fire"))
         {
            GD.Print("Selected character");
            _gameManager.Players.ElementAt(0).IsSelectingCharacter = false;
            EmitSignal(SignalName.OnCharacterSelectionMade, _gameManager.Players.ElementAt(0));
            GetTree().Paused = false;
         }
      }

      if (_gameManager.Players.Count() == 2 && _gameManager.Players.ElementAt(0).IsSelectingCharacter)
      {
         if (Input.IsActionJustPressed("p2_right"))
         {
            _gameManager.SetToNextCharacter(_gameManager.Players.ElementAt(1));
            ChangeBG(_gameManager.Players.ElementAt(1));
         }
         if (Input.IsActionJustPressed("p2_left"))
         {
            _gameManager.SetToPreviousCharacter(_gameManager.Players.ElementAt(1));
            ChangeBG(_gameManager.Players.ElementAt(1));
         }

         if (Input.IsActionJustPressed("p2_fire"))
         {
            GD.Print("Selected character");
            _gameManager.Players.ElementAt(1).IsSelectingCharacter = false;
            EmitSignal(SignalName.OnCharacterSelectionMade, _gameManager.Players.ElementAt(1));
            GetTree().Paused = false;
         }
      }
   }

   private void ChangeBG(Player player)
   {
      var name = player.CharactersLeftOnStage.ElementAt(player._characterIndex).Name;
      GD.Print(name);
      switch (name)
      {
         case "CapricornP1":
            EmitSignal(SignalName.CapricornP1Selected);
            break;
         case "CapricornP2":
            EmitSignal(SignalName.CapricornP2Selected);
            break;
         case "ScorpioP1":
            EmitSignal(SignalName.ScorpioP1Selected);
            break;
         case "ScorpioP2":
            EmitSignal(SignalName.ScorpioP2Selected);
            break;
         case "PiscesP1":
            EmitSignal(SignalName.PiscesP1Selected);
            break;
         case "PiscesP2":
            EmitSignal(SignalName.PiscesP2Selected);
            break;
         case "MegamiP1":
            EmitSignal(SignalName.SagP1Selected);
            break;
         case "MegamiP2":
            EmitSignal(SignalName.SagP2Selected);
            break;
         default:
            break;
      }
   }

   private void OnFirstPlayerCharacterSelect()
   {
      var player = _gameManager.Players.ElementAt(0);
      OnCharacterSelect(player);
   }

   private void OnSecondPlayerCharacterSelect()
   {
      var player = _gameManager.Players.ElementAt(1);
      OnCharacterSelect(player);
   }
}