using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Cysharp.Threading;
using Cysharp.Threading.Tasks;
using System;
using DG.Tweening;

public class Launch : MonoBehaviour
{
    public string versionUrl;

    // 是否开启热更
    public bool IsHotupdate = false;

    public bool IsUseSDK = false;

    public bool versionCheck = false;

    public bool IsUseAssetBundle = false;

#if UNITY_EDITOR
    public bool EnableNetLog = true;
#else
    public bool EnableNetLog = false;
#endif
    // 状态机
    private LaunchStateMachine stateMachine;

    public static Launch Instance
    {
        get
        {
            return m_Instance;
        }
    }

    private static Launch m_Instance;
    private void Awake()
    {
        if (m_Instance != null)
        {
            Debug.LogError("Launch Instance is not null");
            return;
        }
        
        m_Instance = this;
    }

    // 启动入口
    async void Start()
    {
        Debug.Log("Launch Start");

        DOTween.Init();

        // 1. 打开加载界面
        LaunchLoadingWin.OpenWindow();
        
        // 2. 初始化状态机
        InitStateMachine();
        
        // 3. 启动状态机
        await stateMachine.Start();
    }

    // 初始化状态机
    private void InitStateMachine()
    {
        stateMachine = new LaunchStateMachine();

        if (versionCheck)
        {
            // 添加状态
            // 1. 初始化SDK
            stateMachine.AddState(new InitSDKState());
            
            // 2. 资源解压
            stateMachine.AddState(new ExtractResourcesState());
            
            // 3. 版本检查
            CheckVersionState checkVersionState = new CheckVersionState(versionUrl);
            stateMachine.AddState(checkVersionState);
            
            // 4. 热更新
            stateMachine.AddState(new HotUpdateState(IsHotupdate, LaunchUtility.UpdateType.None));

        }

        
        // 5. 进入热更新程序集
        stateMachine.AddState(new EnterHotUpdateAssemblyState());
        
        // 注册状态机完成事件
        stateMachine.OnCompleted += () => {
            Debug.Log("启动流程完成");
        };
    }
    
    

}