using UnityEngine;
using UnityEngine.Networking;
using System.Collections;

public class JsonLoaderManager : Singleton<JsonLoaderManager>
{


    public static IEnumerator LoadJson(string remoteUrl,string localUrl,System.Action<string> onJsonReady)
    {
        string json = null;
        bool loadedFromWeb = false;

        using (UnityWebRequest uwr = UnityWebRequest.Get(remoteUrl))
        {
            uwr.timeout = 5; // 设置超时时间
            yield return uwr.SendWebRequest();

            if (uwr.result == UnityWebRequest.Result.Success)
            {
                json = uwr.downloadHandler.text;
                loadedFromWeb = true;
                Debug.Log("✅ 从网络加载成功");
            }
            else
            {
                Debug.LogWarning("⚠️ 网络加载失败，尝试加载本地 JSON：" + uwr.error);
            }
        }

        if (!loadedFromWeb)
        {
            TextAsset localJson = Resources.Load<TextAsset>(localUrl);
            if (localJson != null)
            {
                json = localJson.text;
                Debug.Log("📁 从本地加载 JSON 成功");
            }
            else
            {
                Debug.LogError("❌ 本地 JSON 不存在！");
            }
        }
        onJsonReady?.Invoke(json);
    }
}