using System;
using System.Collections.Generic;
using System.ComponentModel;
using Godot;
using Godot.Bridge;
using Godot.Collections;
using Godot.NativeInterop;

[ScriptPath("res://Scripts/Check.cs")]
public partial class Check : Area2D, Interacteable
{
	[Signal]
	public delegate void OnTriggerEventHandler();

	[Export(PropertyHint.None, "")]
	private string diag;

	[Export(PropertyHint.None, "")]
	public Array<SaveFile.Flags> neededFlags;

	[Export(PropertyHint.None, "")]
	public Array<SaveFile.Flags> limitFlags;

	[Export(PropertyHint.None, "")]
	public SaveFile.Flags setFlag = SaveFile.Flags.None;

	[Export(PropertyHint.None, "")]
	public bool callEvent;

	[Export(PropertyHint.None, "")]
	public bool playerTouch;

	[Export(PropertyHint.None, "")]
	public bool once;

	[Export(PropertyHint.None, "")]
	public bool destroyOnLoad;

	[Export(PropertyHint.None, "")]
	private Node2D lookAt;

	[Export(PropertyHint.None, "")]
	private Vector2 moveAtEnd;

	public bool touched;


	public override void _EnterTree()
	{
		if (destroyOnLoad && !SaveFile.CanDo(neededFlags, limitFlags))
		{
			QueueFree();
		}
		else
		{
			base.BodyEntered += OnTriggerEnter;
		}
	}

	public bool CanDo()
	{
		if (!TextSystem.instance.Visible && SaveFile.CanDo(neededFlags, limitFlags))
		{
			return playerTouch == touched;
		}
		return false;
	}

	public virtual void Interact()
	{
		if (!callEvent && (diag == null || diag.Length == 0))
		{
			Player.instance.canInput = true;
			return;
		}
		if (CanDo())
		{
			if (setFlag != SaveFile.Flags.None)
			{
				SaveFile.AddFlag(setFlag);
			}
			if (callEvent)
			{
				if (HasMeta("Blocker"))
				{
					Main.inEvent = Coroutine.Start(CommonEvents.Blocker(diag, lookAt.GlobalPosition));
				}
				else if (GetSignalConnectionList(SignalName.OnTrigger).Count <= 1 && diag.Length > 1)
				{
					CommonEvents.DoEvent(diag);
				}
				else
				{
					EmitSignal(SignalName.OnTrigger);
				}
			}
			else
			{
				TextSystem.GetText(diag);
				SaveFile.AddFlag(setFlag);
			}
			CallDeferred("StopMove");
		}
		else
		{
			Player.instance.canInput = true;
		}
		touched = false;
		if (once)
		{
			QueueFree();
		}
	}

	private void StopMove()
	{
		Party.StopMoving();
		if (lookAt != null && !HasMeta("Blocker"))
		{
			Party.LookAt(lookAt.GlobalPosition);
		}
	}

	private void OnTriggerEnter(Node other)
	{
		if (playerTouch && other == Player.instance?.controlling)
		{
			touched = true;
			Interact();
		}
	}

}