using System;
using System.Collections.Generic;
using Godot;

public partial class Robot : Node3D
{
	private List<ProgramNode> nodes = new List<ProgramNode>();
	private bool isExecuting = false;
	private ProgramNode currentNode;

	public string currentProgram;
	public string currentMessage = "";

	public override void _Process(double delta)
	{
		if (isExecuting)
		{
			switch (currentNode.Execute(this, delta))
			{
				case NodeResult.SUCCESS:
					currentNode = currentNode.nextNode;
					if (currentNode == null)
					{	
						isExecuting = false;
					}
					break;
				case NodeResult.FAILURE:
					isExecuting = false;
					currentMessage = "(FAILED)" + currentNode.lastExecutionMessage;
					break;
				case NodeResult.RUNNING:
					currentMessage = "";
					break;
			}
		}
		else if (currentMessage.Length <= 0)
		{
			currentMessage = "No script executing";
		}

		Visible = Math.Round(Math.Abs(Position.Y / GameData.tileHeight), 0) == GameData.visibleLayer;

	}

	public void SetupExecution(List<ProgramNode> nodes)
	{
		if (nodes.Count <= 0) return;

		this.nodes = new List<ProgramNode>(nodes);
		isExecuting = true;
		currentNode = nodes[0];
	}
}