using System;
using UnityEngine;
using XGame.Framework.Asset;
using XGame.Framework.Utils;

namespace XGame.Framework
{
    /// <summary>
    /// 入口 
    /// </summary>
    internal static class Entrance
    {
        /// <summary>
        /// 程序入口
        /// </summary>
        [RuntimeInitializeOnLoadMethod(RuntimeInitializeLoadType.AfterSceneLoad)]
        internal static void Access()
        {
            Profiler.BeginSample(typeof(Entrance), "Log.Initialize");
            Log.Initialize();
            Profiler.EndSample();

            var async = AssetManager.Init();
            async.On(_ =>
            {
                IsInvalid(errorCode =>
                {
                    if (errorCode != 0)
                    {
                        return;
                    }
                    Profiler.BeginSample(typeof(Entrance), "AppManager.Initialize");
                    AppManager.Initialize();
                    Profiler.EndSample();
                });
            });

        }
        private static void IsInvalid(Action<int> callback)
        {
            var loadAsync = XGameConfig.LoadAsync();
            loadAsync.On(_ =>
            {
                var config = loadAsync.Result;
                if (config == null)
                {
                    Log.Error($"Entrance error: 找不到 XGameConfig.asset.");
                    callback(-1);
                    return;
                }
                AppManager.IsSessionDebug = config.isSessionDebug;
                var launchSceneName = config.launchSceneName;
                var gameLogicTypeName = config.gameLogicTypeName;
                XGameConfig.Unload(config);
                if (string.IsNullOrEmpty(launchSceneName))
                {
                    Log.Error($"Entrance error: XGameConfig.asset 没有设置启动场景.");
                    callback(-2);
                    return;
                }
                if (!UnityEngine.SceneManagement.SceneManager.GetActiveScene().name.Equals(launchSceneName))
                {
                    Log.Error($"Entrance error: XGameConfig.asset 启动场景没有激活.");
                    callback(-3);
                    return;
                }
                if (string.IsNullOrEmpty(gameLogicTypeName))
                {
                    Log.Error($"Entrance error: XGameConfig.asset 没有设置启动脚本.");
                    callback(-4);
                    return;
                }
                if (Type.GetType(gameLogicTypeName) == null)
                {
                    Log.Error($"Entrance error: XGameConfig.asset 找不到启动脚本. Type:{gameLogicTypeName}");
                    callback(-5);
                    return;
                }
                AppManager.GameLogicTypeName = gameLogicTypeName;
                //var assembly = System.Reflection.Assembly.Load(config.launchAssemblyName);
                //assembly.GetType(gameLogicTypeName);
                callback(0);
            });
            
        }
    }
}