using UnityEngine;

namespace FidelityFX
{
    /// <summary>
    /// A collection of callbacks required by the FSR2 process.
    /// This allows some customization by the game dev on how to integrate FSR2 into their own game setup.
    /// </summary>
    public class Fsr2Callbacks
    {
        public virtual void Message(Fsr2.MessageType type, string message)
        {
            switch (type)
            {
                case Fsr2.MessageType.Warning:
                    Debug.LogWarning(message);
                    break;
                case Fsr2.MessageType.Error:
                    Debug.LogError(message);
                    break;
            }
        }
        
        public virtual Shader LoadShader(string name)
        {
            return Resources.Load<Shader>(name);
        }

        public virtual ComputeShader LoadComputeShader(string name)
        {
            return Resources.Load<ComputeShader>(name);
        }

        public virtual void UnloadComputeShader(ComputeShader shader)
        {
            Resources.UnloadAsset(shader);
        }

        public virtual void ApplyMipmapBias(float biasOffset)
        {
            foreach (var texture in Resources.FindObjectsOfTypeAll<Texture2D>())
            {
                texture.mipMapBias += biasOffset;
            }
        }
    }
}