using System.Collections;
using AOT.Boot;
using UnityEngine;
using YooAsset;

namespace HotUpdate
{
    /// <summary>
    /// 加载小镇广场环境，供角色站在广场中央。
    /// </summary>
    public sealed class TownSquareSpawner : MonoBehaviour
    {
        public const string PrefabAddress = "TownSquare";
        public const string EditorPrefabPath = "Assets/Bundles/Scenes/Town/TownSquare/TownSquare.prefab";
        public const string ArtPackageName = "Art";

        BootContext _ctx;
        GameObject _instance;

        public void Bind(BootContext ctx) => _ctx = ctx;

        public IEnumerator SpawnCo()
        {
            GameObject prefab = null;

            if (YooAssets.IsInitialized && YooAssets.TryGetPackage(ArtPackageName, out var art) &&
                art.InitializeStatus == EOperationStatus.Succeeded)
            {
                var handle = art.LoadAssetAsync<GameObject>(PrefabAddress);
                yield return handle;
                if (handle.Status == EOperationStatus.Succeeded)
                    prefab = handle.GetAssetObject<GameObject>();
                else
                    handle.Release();
            }

#if UNITY_EDITOR
            if (prefab == null)
                prefab = UnityEditor.AssetDatabase.LoadAssetAtPath<GameObject>(EditorPrefabPath);
#endif

            if (prefab == null)
            {
                Debug.LogError("[TownSquareSpawner] TownSquare prefab not found");
                yield break;
            }

            if (_instance != null)
                Destroy(_instance);

            _instance = Instantiate(prefab);
            _instance.name = "TownSquare_Runtime";
            DontDestroyOnLoad(_instance);

            if (Camera.main != null)
            {
                var cam = Camera.main;
                cam.transform.position = new Vector3(0f, 12f, -22f);
                cam.transform.rotation = Quaternion.Euler(28f, 0f, 0f);
                cam.fieldOfView = 40f;
                cam.backgroundColor = new Color(0.78f, 0.88f, 0.94f);
            }

            Debug.Log($"[TownSquareSpawner] spawned ok res={_ctx?.ResVersion}");
        }
    }
}