using Kit.Helpers.Log;
using System.Collections;
using System.Collections.Generic;

namespace Kit.Helpers.Repository
{
    public interface ISelectContext : IDictionaryCacheProvider
    {
#if NETCOREAPP
        IDictionary<object, object> Items { get; }
#elif NETFRAMEWORK
        IDictionary Items { get; }
#endif
        ICallStackLog CallStackLog { get; set; }
    }

    public class SelectContext : ISelectContext
    {
        public SelectContext()
        {
            Items = new Dictionary<object, object>();
            CallStackLog = Log.CallStackLog.Empty;
        }

#if NETCOREAPP
        public IDictionary<object, object> Items { get; }
#elif NETFRAMEWORK
        public IDictionary Items { get; }
#endif
        public ICallStackLog CallStackLog { get; set; }

        private Dictionary<TKey, TEntity> GetOrCreateDictionary<TKey, TEntity>(string cacheKey)
        {
#if NETCOREAPP
            Dictionary<TKey, TEntity> cacheDictionary = Items.ContainsKey(cacheKey) ? (Dictionary<TKey, TEntity>)Items[cacheKey] : null;
#elif NETFRAMEWORK
            Dictionary<TKey, TEntity> cacheDictionary = Items.Contains(cacheKey) ? (Dictionary<TKey, TEntity>)Items[cacheKey] : null;
#endif

            if (cacheDictionary == null)
            {
                cacheDictionary = new Dictionary<TKey, TEntity>();
                Items[cacheKey] = cacheDictionary;
            }

            return cacheDictionary;
        }

        public void SetByKey<TKey, TValue>(string cacheKey, TKey key, TValue value) => GetOrCreateDictionary<TKey, TValue>(cacheKey).SetByKey(key, value);
        public TValue GetByKey<TKey, TValue>(string cacheKey, TKey key) => GetOrCreateDictionary<TKey, TValue>(cacheKey).GetByKey(key);
        public TValue GetByKey<TKey, TValue>(string cacheKey, TKey key, TValue defaultValue) => GetOrCreateDictionary<TKey, TValue>(cacheKey).GetByKey(key, defaultValue);

        public bool TryGet<TKey, TValue>(string cacheKey, TKey key, TValue defaultValue, out TValue value)
        {
            throw new System.NotImplementedException();
        }
    }
}