using System;
using Newtonsoft.Json;
using UnityEngine;

namespace Activity.Data
{
    /// <summary>
    /// 使用本次登录绑定的存档提供方，保留活动类型名作为存档键。
    /// </summary>
    public class EventDataRepository : IEventDataRepository
    {
        readonly game.PlayerDataStorage.IPlayerSaveStore store;
        public EventDataRepository(game.PlayerDataStorage.IPlayerSaveStore store)
        { this.store = store ?? throw new ArgumentNullException(nameof(store)); }
        public void Save<T>(T data) where T : IEventData
        {
            if (data == null)
            {
                Debug.LogWarning($"[EventDataRepository] Cannot save null data for {typeof(T).Name}");
                return;
            }

            try
            {
                var json = JsonConvert.SerializeObject(data);
#if UNITY_EDITOR
                Debug.Log($"[EventDataRepository] Saving {typeof(T).Name}: {json}");
#endif
                store.Write(typeof(T).Name, json).RequireAccepted();
            }
            catch (Exception e)
            {
                Debug.LogError($"[EventDataRepository] Failed to save {typeof(T).Name}: {e.Message}\n{e.StackTrace}");
                throw;
            }
        }

        public T Load<T>() where T : IEventData, new()
        {
            try
            {
                var read = store.Read(typeof(T).Name);
                var dataStr = read.ValueOrThrow();
                if (read.Found == false) return new T();
                if (string.IsNullOrWhiteSpace(dataStr) || dataStr.Trim() == "null")
                    throw new JsonSerializationException("Stored activity data cannot be empty or null.");
// #if UNITY_EDITOR
//                 Debug.Log($"[EventDataRepository] Load {typeof(T).Name}: {dataStr}");
// #endif
                var data = JsonConvert.DeserializeObject<T>(dataStr);
                if (data == null) throw new JsonSerializationException("Stored activity data cannot be null.");
                return data;
            }
            catch (Exception e)
            {
                Debug.LogError($"[EventDataRepository] Failed to load {typeof(T).Name}: {e.Message}\n{e.StackTrace}");
                throw;
            }
        }

        public bool Exists<T>() where T : IEventData
        {
            var read = store.Read(typeof(T).Name);
            read.ValueOrThrow();
            return read.Found.Value;
        }
    }
}