using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Membase;
using Enyim.Caching.Memcached;
using System.Configuration;

namespace Bowin.Common.Cache
{
    public class MembaseCacheProvider : ICacheProvider
    {
        public static readonly MembaseClient Client = new MembaseClient();
        private string CacheKey_Format = ConfigurationManager.AppSettings["cacheKey"] + "_{0}";
        
        public object Add(string key, object entry, DateTime utcExpiry)
        {
            object oOutObject = entry;
            key = string.Format(CacheKey_Format, key);
            if (!Client.TryGet(key, out oOutObject))
            {
                Client.Store(StoreMode.Add, key, entry, utcExpiry);
            }
            return oOutObject;
        }

        public object Get(string key)
        {
            object oOutObject = null;
            key = string.Format(CacheKey_Format, key);
            Client.TryGet(key, out oOutObject);
            return oOutObject;
        }

        public void Remove(string key)
        {
            key = string.Format(CacheKey_Format, key);
            Client.Remove(key);
        }

        public void Set(string key, object entry, DateTime utcExpiry)
        {
            object oOutObject = entry;
            key = string.Format(CacheKey_Format, key);
            if (Client.TryGet(key, out oOutObject))
            {
                Client.Store(StoreMode.Replace, key, entry, utcExpiry);
            }
            else
            {
                Client.Store(StoreMode.Add, key, entry, utcExpiry);
            }
        }
    }
}