using System;
using System.IO;
using UniGLTF;
using UnityEngine;
#if (NET_4_6 && UNITY_2017_1_OR_NEWER)
using System.Threading.Tasks;
#endif


namespace VRM
{
    public static class VRMImporter
    {
        [Obsolete("use VRMImporterContext.Load(path)")]
        public static GameObject LoadFromPath(string path)
        {
            var context = new VRMImporterContext();
            context.Parse(path, File.ReadAllBytes(path));
            context.Load();
            context.ShowMeshes();
            context.EnableUpdateWhenOffscreen();
            return context.Root;
        }

        [Obsolete("use VRMImporterContext.Load(bytes)")]
        public static GameObject LoadFromBytes(Byte[] bytes)
        {
            var context = new VRMImporterContext();
            context.ParseGlb(bytes);
            context.Load();
            context.ShowMeshes();
            context.EnableUpdateWhenOffscreen();
            return context.Root;
        }

        [Obsolete("use VRMImporterContext.Load()")]
        public static void LoadFromBytes(VRMImporterContext context)
        {
            context.Load();
            context.ShowMeshes();
            context.EnableUpdateWhenOffscreen();
        }

        #region LoadVrmAsync
        [Obsolete("use VVRMImporterContext.LoadAsync")]
        public static void LoadVrmAsync(string path, Action<GameObject> onLoaded, Action<Exception> onError = null, bool show = true)
        {
            var context = new VRMImporterContext(UnityPath.FromFullpath(path));
            LoadVrmAsync(File.ReadAllBytes(path), onLoaded, onError, show);
        }

        [Obsolete("use VVRMImporterContext.LoadAsync")]
        public static void LoadVrmAsync(Byte[] bytes, Action<GameObject> onLoaded, Action<Exception> onError = null, bool show = true)
        {
            var context = new VRMImporterContext();
            using (context.MeasureTime("ParseGlb"))
            {
                context.ParseGlb(bytes);
            }
            context.LoadAsync(onLoaded, onError, show);
        }

        [Obsolete("use VVRMImporterContext.LoadAsync")]
        public static void LoadVrmAsync(VRMImporterContext context, Action<GameObject> onLoaded, Action<Exception> onError = null, bool show = true)
        {
            context.LoadAsync(onLoaded, onError, show);
        }
        #endregion

#if (NET_4_6 && UNITY_2017_1_OR_NEWER)

        public static Task<GameObject> LoadVrmAsync(string path, bool show = true)
        {
            var context = new VRMImporterContext(UnityPath.FromFullpath(path));
            context.ParseGlb(File.ReadAllBytes(path));
            return LoadVrmAsync(context, show);
        }


        public static Task<GameObject> LoadVrmAsync(Byte[] bytes, bool show = true)
        {
            var context = new VRMImporterContext();
            context.ParseGlb(bytes);
            return LoadVrmAsync(context, show);
        }

        public static Task<GameObject> LoadVrmAsync(VRMImporterContext ctx, bool show = true)
        {
            return ctx.LoadAsyncTask(show);
        }

#endif
    }
}