using Godot;
using System;

public partial class BaseEntity : Area2D
{
    [Signal]
    public delegate BaseEntity EntitySelectedEventHandler();
    
    [Signal]
    public delegate BaseEntity EntityDeselectedEventHandler();
    
    protected Vector2 ScreenSize;
    protected AnimationPlayer animationPlayer;
    protected Sprite2D sprite;
    protected CollisionShape2D collisionShape;

    protected bool selected;


    public override void _Ready()
    {
        ScreenSize = GetViewportRect().Size;

        sprite = GetNode<Sprite2D>("Sprite2D");
        collisionShape = GetNode<CollisionShape2D>("CollisionShape2D");
        animationPlayer = sprite.GetNode<AnimationPlayer>("AnimationPlayer");
    }

    public override void _UnhandledInput(InputEvent @event)
    {
        if (@event is InputEventMouseButton mouseEvent)
        {
            if (mouseEvent.IsPressed() && !mouseEvent.IsEcho())
            {
                switch (mouseEvent.ButtonIndex)
                {
                    case MouseButton.Left:
                        if (collisionShape.Shape.GetRect().HasPoint(GetLocalMousePosition())) entitySelected();
                        else if (selected) entityDeselected();
                        break;
                    default:
                        break;
                }
            }
        }
    }

    protected void entitySelected()
    {
        selected = true;
        GD.Print("Selected");
        GetNode<Sprite2D>("SelectedSprite2D").Visible = true;
        EmitSignalEntitySelected();
        
        ShowInfo();
    }

    protected void entityDeselected()
    {
        selected = false;
        GD.Print("Unselected");
        GetNode<Sprite2D>("SelectedSprite2D").Visible = false;

        EmitSignalEntityDeselected();
        
        HideInfo();

    }

    protected void ShowInfo()
    {
        MarginContainer marginContainer = GetNode<MarginContainer>("MarginContainer");
        Label nameLabel = GetNode<Label>("MarginContainer/VBoxContainer/Label");
        Label positionLabel = GetNode<Label>("MarginContainer/VBoxContainer/Label2");
        
        nameLabel.Text = $"Name: {Name}";
        positionLabel.Text = $"Position: {Position}";

        marginContainer.Show();
    }

    protected void HideInfo()
    {
        MarginContainer marginContainer = GetNode<MarginContainer>("MarginContainer");
        marginContainer.Hide();
    }

    // public override void _MouseEnter()
    // {
    //     GD.Print("MouseEnter");
    //
    //     if (Input.IsMouseButtonPressed(MouseButton.Left))
    //     {
    //         GD.Print("Selected");
    //         selected = true;
    //     }
    // }

    public virtual void Create()
    {
        return;
    }
}