using UnityEngine;

namespace Golems
{
    [CreateAssetMenu(fileName = "New AlbertGhostMemorySettings",
        menuName = "Golems/Scriptable Render Features/AlbertGhostMemorySettings")]
    public class AlbertGhostMemorySettings : ScriptableObject
    {
        [SerializeField] private Vector3 m_LightDirection;

        public Vector3 LightDirection
        {
            get => m_LightDirection;
            set => m_LightDirection = value;
        }

        [SerializeField] private Color m_LightColour = Color.white;

        public Color LightColour
        {
            get => m_LightColour;
            set => m_LightColour = value;
        }

        /// <summary>
        /// Effects how far off centre each Blur sample becomes
        /// </summary>
        [Tooltip("Effects how far off centre each Blur sample becomes. Note, the bigger the number, the bigger the pixelation")]
        [Range(0.01f, 10.0f)][SerializeField] private float m_BlurRadius = .5f;
        public float BlurRadius => m_BlurRadius;
        
        /// <summary>
        /// The number of Blur passes performed.
        /// This effects ALL objects rendered
        /// </summary>
        [Tooltip("How many times we Blur all the objects. Note, the bigger the number, the bigger the performance hit")]
        [Range(1, 10)][SerializeField] private int m_BlurPasses = 4;
        public int BlurPasses => m_BlurPasses;
        
        /// <summary>
        /// Index into the m_BlurTextureSizes
        /// </summary>
        [Range(0,4)] [SerializeField] private int m_BlurTextureSize = 3;

        /// <summary>
        /// Texture size of the blur textures
        /// </summary>
        private int[] m_BlurTextureSizes = new int[5] { 128, 256, 512, 1024, 2048 };

        /// <summary>
        /// Returns the current Blur Texture resolution driven by m_BlurTextureSize
        /// </summary>
        public int BlurTextureResolution => m_BlurTextureSizes[
            Mathf.Max(0, Mathf.Min(m_BlurTextureSize, m_BlurTextureSizes.Length - 1))];
    }
}