using HybridCLR;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Reflection;
using Cysharp.Threading.Tasks;
using Mono;
using UnityEngine;

public class LoadDll
{
    private void Awake()
    {
        // Editor环境下，HotUpdate.dll.bytes已经被自动加载，不需要加载，重复加载反而会出问题。
//#if !UNITY_EDITOR
//        Assembly hotUpdateAss = Assembly.Load(File.ReadAllBytes($"{Application.streamingAssetsPath}/Hotfix.dll.bytes"));
//#else
//        // Editor下无需加载，直接查找获得HotUpdate程序集
//        Assembly hotUpdateAss = System.AppDomain.CurrentDomain.GetAssemblies().First(a => a.GetName().Name == "Hotfix");
//#endif

//        game = hotUpdateAss.GetType("Hello");
//        var instance = hotUpdateAss.CreateInstance("Game.Game");
//        game = (Game.Game)instance;
//        game.Awake();
//        this.game = new Game.Game(gameObject, EPlayMode.HostPlayMode, GameInitType.None);
//        this.game.GetMethod("Awake").Invoke(null, null);
    }


    public List<string> aotDllNames = new List<string>()
    {
    };

//    public List<string> dllNames = new List<string>()
//    {
//        "Hotfix.dll", "Hotfix.pdb"
//    };

    private Dictionary<string, TextAsset> dlls = new Dictionary<string, TextAsset>();
    private Dictionary<string, TextAsset> aotDlls = new Dictionary<string, TextAsset>();

    public async UniTask DownloadAsync()
    {
        if (true) // Dll
        {
            // Editor环境下，HotUpdate.dll.bytes已经被自动加载，不需要加载，重复加载反而会出问题。
#if !UNITY_EDITOR
            string hotfixDll = AssetsConst.Assets_Res_Codes_Hotfix_dll_bytes;
            var loadAssetAsync = await ResourceComponent.Instance.LoadAssetAsync<TextAsset>(hotfixDll);
            this.dlls.Add(hotfixDll, loadAssetAsync);
#else
            // Editor下无需加载，直接查找获得HotUpdate程序集
//            Assembly hotUpdateAss = System.AppDomain.CurrentDomain.GetAssemblies().First(a => a.GetName().Name == "Hotfix");

            string hotfixDll = "Hotfix";
            Assembly hotUpdateAss = System.AppDomain.CurrentDomain.GetAssemblies().First(a => a.GetName().Name == hotfixDll);
#endif
        }

        if (true) // AOTDll
        {
#if !UNITY_EDITOR
            foreach (var dll in this.aotDllNames)
            {
                var loadAssetAsync = await ResourceComponent.Instance.LoadAssetAsync<TextAsset>(dll);
                this.aotDlls.Add(dll, loadAssetAsync);
            }
#endif
        }

        await UniTask.Yield();
    }

    public void OnStart()
    {
        foreach (var kv in this.aotDlls) // 先加载aot内容，避免报错
        {
            TextAsset textAsset = kv.Value;
            RuntimeApi.LoadMetadataForAOTAssembly(textAsset.bytes, HomologousImageMode.SuperSet);
        }


        // Editor环境下，HotUpdate.dll.bytes已经被自动加载，不需要加载，重复加载反而会出问题。
#if !UNITY_EDITOR
        var dllAsset = this.dlls[AssetsConst.Assets_Res_Codes_Hotfix_dll_bytes];
        Assembly hotUpdateAss = Assembly.Load(dllAsset.bytes);
#else
        // Editor下无需加载，直接查找获得HotUpdate程序集
        Assembly hotUpdateAss = System.AppDomain.CurrentDomain.GetAssemblies().First(a => a.GetName().Name == "Hotfix");
#endif

        var type = hotUpdateAss.GetType("Game.GameEntry");
        object[] pa = new object[] { };
        type.GetMethod("Init").Invoke(null, null);

//        var instance = Activator.CreateInstance(type, pa);
//        var game1 = instance as Game.Game;
//
//        return game1;
    }

//    void Start()
//    {
//        this.game.Start();
//    }
//
//    private void Update()
//    {
//        this.game.Update();
//    }
//
//    private void OnDestroy()
//    {
//        this.game.OnDestroy();
//    }
}