using System.Collections;

namespace AibisDream.SaveSystem
{
    /// <summary>
    /// sections["scene"]：当前 Addressable 场景。
    /// RestoreOrder=10，读档时最先加载场景，供后续 env/actor 等依赖。
    /// </summary>
    public class SceneSnapshotProvider : ISnapshotProvider
    {
        public string SaveId => SnapshotProviderIds.Scene;
        public int RestoreOrder => 10;

        public object Capture()
        {
            var sceneLoader = SceneLoader.Instance;
            return new SceneSnapshotDto
            {
                sceneName = sceneLoader != null ? sceneLoader.CurrentSceneName : null
            };
        }

        public IEnumerator Restore(object dto)
        {
            if (dto is not SceneSnapshotDto scene || string.IsNullOrEmpty(scene.sceneName))
            {
                yield break;
            }

            yield return SceneLoader.Instance.LoadSceneAsync(scene.sceneName);
        }
    }
}