using System.Linq;
using Gameplay;
using Gameplay.SubSystems;
using UnityEngine.SceneManagement;

public partial class CampManager
{
    private const string CAMP_SCENE_PATH = "Assets/Scenes/CampScene.unity";

    private enum EProcess
    {
        None = 0,
        LoadingScene,
        LoadingUI,
        RefreshCamp,
        Present,
    }

    private EProcess _currProcess = EProcess.None;
    private CampSceneManager _campSceneManager;

    public async void EnterCamp()
    {
        UIManager.Instance.HideAllUI();
        _currProcess = EProcess.LoadingScene;
        var loadingExecutor = new LoadingExecutorWithUILoadingController();
        loadingExecutor.getProgress = GetLoadingProcess;
        LoadingExecutorManager.Instance.ExecuteLoading(loadingExecutor);
        var sceneHandle = await GameSceneManager.Instance.LoadSceneForUIView(CAMP_SCENE_PATH, LoadSceneMode.Additive);
        if (sceneHandle == null)
        {
            DebugUtil.LogError($"无法进入营地场景，场景不存在,scene path:{CAMP_SCENE_PATH}");
            _currProcess = EProcess.None;
            return;
        }

        _currProcess = EProcess.LoadingUI;
        //todo打开UI
        _currProcess = EProcess.RefreshCamp;
        _campSceneManager = CommonUtils.GetSceneRootComponent<CampSceneManager>(sceneHandle.Scene);
        if (_campSceneManager == null)
        {
            DebugUtil.LogError($"无法进入营地场景，campSceneManager不存在,scene path:{CAMP_SCENE_PATH}");
            _currProcess = EProcess.None;
            return;
        }

        await _campSceneManager.Refresh();
        _currProcess = EProcess.Present;
    }

    public async void ExitCamp()
    {
        //todo关闭UI
        await GameSceneManager.Instance.UnLoadSceneAsync(CAMP_SCENE_PATH);
        _currProcess = EProcess.None;
        UIManager.Instance.ShowAllUI();
    }

    private float GetLoadingProcess()
    {
        switch (_currProcess)
        {
            case EProcess.None:
                return 0;
            case EProcess.LoadingScene:
                //加载场景只占50%
                return GameSceneManager.Instance.GetSceneLoadingProgress(CAMP_SCENE_PATH) * 50f;
            case EProcess.LoadingUI:
                return 60f;
            case EProcess.RefreshCamp:
                //刷新场景要加载预制体和模型等
                return 60 + _campSceneManager.GetRefreshProcess() * 40f;
            case EProcess.Present:
                return 100;
            default:
                return 0;
        }
    }
}