using System;
using System.Collections;
using System.Reflection;
using UnityEngine;
using GFGGame.Launcher;

namespace GFGGame
{
    public class HotUpdateCodeLoader : SingletonMonoBase<HotUpdateCodeLoader>
    {
        public Type[] allTypes;

        public Type[] GetTypes()
        {
            return this.allTypes;
        }

        public void StartLoad()
        {
            StartCoroutine(StartLoadAssemblyHotfix());
        }


        IEnumerator StartLoadAssemblyHotfix()
        {
            Debug.LogFormat("ILRuntimeLauncher StartLoadAssemblyHotfix");
            yield return new WaitForSeconds(0.1f);
            var dllPath = "Assets/Res/Code/Game.HotUpdate.dll.bytes";
            var asset = GFGAsset.Load<TextAsset>(dllPath);
            byte[] assBytes = asset.bytes;
            //Debug.LogFormat("assBytes != null {0}", assBytes != null);
            //Debug.LogFormat("assBytes.Length {0}", assBytes.Length);
            //yield return new WaitForSeconds(0.1f);
            var pdbPath = "Assets/Res/Code/Game.HotUpdate.pdb.bytes";
            asset = GFGAsset.Load<TextAsset>(pdbPath);
            byte[] pdbBytes = asset.bytes;
            //Debug.LogFormat("pdbBytes != null {0}", pdbBytes != null);
            //Debug.LogFormat("pdbBytes.Length {0}", pdbBytes.Length);
            if (LauncherConfig.ILRuntimeMode)
            {
                Debug.LogFormat("Assembly Mode ILRuntime");
                ILRuntimeLauncher.Instance.LoadAssembly(assBytes, pdbBytes);
            }
            else
            {
                Debug.LogFormat("Assembly Mode Jit");
                StartCoroutine(LoadAssemblyJustInTime(assBytes, pdbBytes));
            }
            GFGAsset.Release(dllPath);
            GFGAsset.Release(pdbPath);
        }

        IEnumerator LoadAssemblyJustInTime(byte[] assBytes, byte[] pdbBytes)
        {
            //yield return new WaitForSeconds(0.1f);
            //mono模式
            var assembly = Assembly.Load(assBytes, pdbBytes);
            this.allTypes = assembly.GetTypes();
            //Debug.LogFormat("assembly != null {0}", assembly != null);
            //yield return new WaitForSeconds(0.1f);
            System.Type type = assembly.GetType("GFGGame.HotUpdate.HotUpdateEntry");
            //Debug.LogFormat("type != null {0}", type != null);
            //yield return new WaitForSeconds(0.1f);
            type.GetMethod("Start").Invoke(type, null);
            yield break;
        }

    }
}