ProjectDDD/Assets/_DDD/_Scripts/RestaurantData/RestaurantData.cs

using System.Threading.Tasks;
using UnityEngine;
using UnityEngine.AddressableAssets;

namespace DDD
{
    [CreateAssetMenu(fileName = "RestaurantData", menuName = "RestaurantData/RestaurantData", order = 0)]
    public class RestaurantData : ScriptSingleton<RestaurantData>
    {
        [SerializeField] private AssetReference _restaurantPlayerData;
        [SerializeField] private AssetReference _restaurantManagementData;

        public RestaurantPlayerData PlayerData { get; private set; }
        public RestaurantManagementData ManagementData { get; private set; }

        private bool _isLoaded;

        public async Task LoadData()
        {
            if (_isLoaded)
            {
                return;
            }

            var restaurantPlayerDataHandle = _restaurantPlayerData.LoadAssetAsync<RestaurantPlayerData>();
            var restaurantManagementDataHandle = _restaurantManagementData.LoadAssetAsync<RestaurantManagementData>();

            await restaurantPlayerDataHandle.Task;
            await restaurantManagementDataHandle.Task;
        
            PlayerData = restaurantPlayerDataHandle.Result;
            ManagementData = restaurantManagementDataHandle.Result;

            Debug.Assert(PlayerData != null, "RestaurantPlayerData is null");
            Debug.Assert(ManagementData != null, "RestaurantManagementData is null");

            _isLoaded = true;
        }

        private void OnDisable()
        {
            if (_isLoaded == false) return;

            _restaurantPlayerData.ReleaseAsset();
            _restaurantManagementData.ReleaseAsset();
            
            _isLoaded = false;
        }
    }
}