using System;

namespace LibMMD.Unity3D
{
    public enum LilToonPreset
    {
        OutlineShadow,
        Anime,
        Illustration,
    }

    public class MmdUnityConfig
    {
        public MmdConfigSwitch EnableDrawSelfShadow;
        public MmdConfigSwitch EnableCastShadow;
        public MmdConfigSwitch EnableEdge;
        public bool EnableTextureAlphaScan;
        public string ShaderAdapterId = MmdMaterialAdapterIds.Mmd;
        public LilToonPreset LilToonPreset = LilToonPreset.OutlineShadow;

        // Used by the custom adapter. Keeping this as a shader name avoids a
        // hard dependency on optional shader packages such as NiroToon.
        public string CustomShaderName;
        
        public static bool DealSwitch(MmdConfigSwitch switchVal, bool configVal)
        {
            switch (switchVal)
            {
                case MmdConfigSwitch.AsConfig:
                    return configVal;
                case MmdConfigSwitch.ForceTrue:
                    return true;
                case MmdConfigSwitch.ForceFalse:
                    return false;
                default:
                    throw new ArgumentOutOfRangeException("switchVal", switchVal, null);
            }
        }
    }
}