using Godot;
using System;
using Godot.Collections;

[GlobalClass]
public partial class CardUI : Control
{
	public ColorRect color;
	public Label state;
    public Area2D dropDetector;
    public CardStateMachine cardStateMachine;
    public CardZone.ZoneType targetedZone;
    public CardZone.ZoneType currentZone;
    public Dictionary<String, String> data;
    public bool tapped;

    [Signal]
	public delegate void ReparentRequestedEventHandler(CardUI whichCardUI);
	
	public override void _Ready()
	{
		color = GetNode<ColorRect>("Color");
		state = GetNode<Label>("State");
        dropDetector = GetNode<Area2D>("DropDetector");
        cardStateMachine = GetNode<CardStateMachine>("CardStateMachine");
        cardStateMachine.Init(this);
        Node topLayer = GetTree().GetFirstNodeInGroup("top_layer");

        if (!IsInstanceIdValid(topLayer.GetInstanceId()))
        {
            GD.PrintErr(["Unable to find top layer node:", topLayer]);
        }

        if (topLayer is Main mainNode)
        {
            this.ReparentRequested += mainNode.OnReparentRequested;
        }
        else
        {
            GD.PrintErr(["Top node is not type Main:", topLayer]);
        }
    }

    public override void _Process(double delta)
    {
        base._Process(delta);
    }

    public override void _Input(InputEvent @event)
    {
        base._Input(@event);
        cardStateMachine.OnInput(@event);
    }

	public void OnGuiInput(InputEvent @event)
	{
        cardStateMachine.OnGuiInput(@event);
    }

	public void OnMouseEntered()
	{
        cardStateMachine.OnMouseEntered();
    }

	public void OnMouseExited()
	{
        cardStateMachine.OnMouseExited();
    }

    public void OnDropDetectorEntered(Area2D area)
    {
        if (area is CardZone zone)
        {
            this.targetedZone = zone.type;
        }
        else
        {
            this.targetedZone = CardZone.ZoneType.None;
        }
    }

    public void OnDropDetectorExited(Area2D area)
    {
        
    }

    public bool CanBePlayed(CardZone.ZoneType zoneType)
    {
        return zoneType == CardZone.ZoneType.Battlefield;
    }
}