using System;
using System.Reflection;
using UnityEngine;

namespace BehaviorDesigner.Runtime.Tasks
{
	[TaskCategory("Reflection")]
	[HelpURLAttribute("http://www.opsive.com/assets/BehaviorDesigner/documentation.php?id=148")]
	[TaskDescription("Gets the value from the property specified. Returns success if the property was retrieved.")]
	[TaskIcon("{SkinColor}ReflectionIcon.png")]
	public class GetPropertyValue : Action
	{
		[Tooltip("The GameObject to get the property of")]
		public SharedGameObject targetGameObject;

		[Tooltip("The component to get the property of")]
		public SharedString componentName;

		[Tooltip("The name of the property")]
		public SharedString propertyName;

		[Tooltip("The value of the property")]
		[RequiredField]
		public SharedVariable propertyValue;

		public override TaskStatus OnUpdate()
		{
			if (propertyValue == null)
			{
				Debug.LogWarning("Unable to get property - property value is null");
				return TaskStatus.Failure;
			}
			Type typeWithinAssembly = TaskUtility.GetTypeWithinAssembly(componentName.Value);
			if (typeWithinAssembly == null)
			{
				Debug.LogWarning("Unable to get property - type is null");
				return TaskStatus.Failure;
			}
			Component component = GetDefaultGameObject(targetGameObject.Value).GetComponent(typeWithinAssembly);
			if (component == null)
			{
				Debug.LogWarning("Unable to get the property with component " + componentName.Value);
				return TaskStatus.Failure;
			}
			PropertyInfo property = component.GetType().GetProperty(propertyName.Value);
			propertyValue.SetValue(property.GetValue(component, null));
			return TaskStatus.Success;
		}

		public override void OnReset()
		{
			targetGameObject = null;
			componentName = null;
			propertyName = null;
			propertyValue = null;
		}
	}
}