using System.Collections;
using AibisDream.Framework;
using AibisDream.SaveSystem;
using AibisDream.UI;
using UnityEngine;

namespace AibisDream
{
    /// <summary>负责 Persistence 场景中的应用级初始化，不参与游戏会话流程。</summary>
    [DefaultExecutionOrder(-100)]
    public sealed class ApplicationBootstrapper : MonoBehaviour
    {
        private const float MainMenuFadeDuration = 0.5f;

        private IEnumerator Start()
        {
            SettingLoader.Init();
            SnapshotRegistry.EnsureInitialized();

            var transitionPanel = UIManager.Instance.GetPanel<ScreenTransitionPanel>();
            UIManager.Instance.ShowPanel<ScreenTransitionPanel>();
            transitionPanel?.ApplyScreenCovered(true);

            yield return LocalizationKit.WaitUntilReady();

            EnumEventSystem.Global.Send(GameLifecycleEvent.ApplicationReady);

            yield return LocalizationKit.WaitForUIRefresh();
            if (transitionPanel != null)
            {
                yield return transitionPanel.FadeOutAsync(MainMenuFadeDuration);
            }
        }
    }
}