using UnityEngine;

namespace UnityEditor.Graphs.Material
{
	public enum PropertyType
	{
		Color,
		Texture2D,
		Float,
		Vector4
	}

	public abstract class ShaderProperty : ScriptableObject, IGenerateProperties
	{
		[SerializeField]
		protected string m_PropertyDescription;

		public virtual object value { get; set; }

		public virtual void PropertyOnGUI (out bool nameChanged, out bool valuesChanged)
		{
			EditorGUI.BeginChangeCheck ();
			name = EditorGUILayout.TextField("Name", name);
			nameChanged = EditorGUI.EndChangeCheck ();
			
			EditorGUI.BeginChangeCheck ();
			m_PropertyDescription = EditorGUILayout.TextField("Desc", m_PropertyDescription);
			valuesChanged = EditorGUI.EndChangeCheck ();
		}

		public abstract PropertyType propertyType { get; }
		public abstract void GeneratePropertyBlock (PropertyGenerator visitor, GenerationMode generationMode);
		public abstract void GeneratePropertyUsages (ShaderGenerator visitor, GenerationMode generationMode);
		public abstract string GenerateDefaultValue ();
	}
}