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;
        [SerializeField] private AssetReference _restaurantRunData;
        [SerializeField] private AssetReference _restaurantCustomerData;

        public RestaurantPlayerData PlayerData { get; private set; }
        public RestaurantManagementData ManagementData { get; private set; }
        public RestaurantRunData RunData { get; private set; }
        public RestaurantCustomerData CustomerData { get; private set; }

        private bool _isLoaded;

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

            var restaurantPlayerDataHandle = _restaurantPlayerData.LoadAssetAsync<RestaurantPlayerData>();
            var restaurantManagementDataHandle = _restaurantManagementData.LoadAssetAsync<RestaurantManagementData>();
            var restaurantRunDataHandle = _restaurantRunData.LoadAssetAsync<RestaurantRunData>();
            var restaurantCustomerDataHandle = _restaurantCustomerData.LoadAssetAsync<RestaurantCustomerData>();

            await Task.WhenAll(
                restaurantPlayerDataHandle.Task,
                restaurantManagementDataHandle.Task,
                restaurantRunDataHandle.Task,
                restaurantCustomerDataHandle.Task
            );
        
            PlayerData = restaurantPlayerDataHandle.Result;
            ManagementData = restaurantManagementDataHandle.Result;
            RunData = restaurantRunDataHandle.Result;
            CustomerData = restaurantCustomerDataHandle.Result;

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

            _isLoaded = true;
        }

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

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