using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Networking;
using UnityEngine.SceneManagement;

/* 程序启动入口 */
public class Entry : MonoBehaviour
{
    void Start()
    {
        Screen.orientation = ScreenOrientation.AutoRotation;//设置方向为自动(根据需要自动旋转屏幕朝向任何启用的方向。)
        Screen.autorotateToLandscapeRight = true;           //允许自动旋转到右横屏
        Screen.autorotateToLandscapeLeft = true;            //允许自动旋转到左横屏
        Screen.autorotateToPortrait = false;                //不允许自动旋转到纵向
        Screen.autorotateToPortraitUpsideDown = false;      //不允许自动旋转到纵向上下
        Screen.sleepTimeout = SleepTimeout.NeverSleep;      //睡眠时间为从不睡眠
        //游戏帧率设置，需要在项目设置的Quality中关闭对应画质的垂直同步（VSync选项）
        // QualitySettings.vSyncCount = 0;
        // Application.targetFrameRate = 60;
        QualitySettings.vSyncCount = 1;
        // SetTip("Loading", Color.white, 56);
        versionText.text = "Version_" + appVersion + "_R5";
        //SetTip("正在检测对比软件版本", Color.white);
        StartCoroutine(CheckAppVersion());
        StartCoroutine(AsyncLoadScene());

        SceneManager.sceneUnloaded += (scene) => {
            long t1 = JC.CS.Utility.GetTimestamp();
            Resources.UnloadUnusedAssets();
            System.GC.Collect();
            long t2 = JC.CS.Utility.GetTimestamp();
            Debug.Log($"场景{scene.name}销毁,释放资源和GC回收的总耗时={t2 - t1}ms");
        };
    }

    [SerializeField] Text versionText;
    const string appVersion = "0.0.1";
    bool appVersionCheckOK = false;

    IEnumerator CheckAppVersion() {
        string url = CommonConfig.businessServerURI + "/app/checkAppVersion?appVersion=" + appVersion;
        using (UnityWebRequest request = UnityWebRequest.Get(url)) {
            yield return request.SendWebRequest();
            if (request.result == UnityWebRequest.Result.Success) {
                appVersionCheckOK = bool.Parse(request.downloadHandler.text);
                if (appVersionCheckOK) {
                    //等场景加载完再提示
                } else {
                    SetTip("请安装最新版本软件", Color.yellow);
                    DelayQuit();
                }
            } else {
                SetTip("读取服务端软件版本配置失败", Color.red);
                DelayQuit();
            }
        }
    }

    float timeOnStartLoadScene;
    IEnumerator AsyncLoadScene() {
        timeOnStartLoadScene = Time.realtimeSinceStartup;
        //加载场景名
        string sceneName = "Login";
        if (LoginMgr.HasToken()) {
            sceneName = "Home";
        }
        //异步加载场景
        AsyncOperation async = SceneManager.LoadSceneAsync(sceneName, LoadSceneMode.Single);
        //阻止当加载完成自动切换
        async.allowSceneActivation = false;
        while (!async.isDone) {
            if (async.progress >= 0.9f) {
                break;
            }
            yield return null;
        }
        while (!appVersionCheckOK) {
            yield return null;
        }
        while (Time.realtimeSinceStartup - timeOnStartLoadScene < 1.5) {
            yield return null;
        }
        async.allowSceneActivation = true;
        //SetTip("软件版本校验成功", Color.green);
    }

    [SerializeField] Text tipText;
    void SetTip(string text, Color color, int fontSize = 40) {
        tipText.text = text;
        tipText.color = color;
        tipText.fontSize = fontSize;
    }

    void DelayQuit() {
        DoTweenUtil.CallDelay(3f, () => {
            Application.Quit();
        });
    }
}