using System;
using System.Collections.Generic;

namespace Kreta.Framework.Caching
{
    public class CacheManager
    {
        private Dictionary<Type, Cache> m_Caches = new Dictionary<Type, Cache>();
        private System.Threading.ReaderWriterLockSlim m_CacheManagerLock = new System.Threading.ReaderWriterLockSlim();

        public CacheManager()
        {
        }

        /// <summary>
        /// Adott cache kérése a managertől
        /// </summary>
        /// <typeparam name="CacheType">Cache típusa</typeparam>
        /// <returns>Cache példány</returns>
        public CacheType AquireCache<CacheType>() where CacheType : Cache
        {
            m_CacheManagerLock.EnterWriteLock();
            try
            {
                if (!m_Caches.ContainsKey(typeof(CacheType)))
                {
                    m_Caches.Add(typeof(CacheType), (Cache)Activator.CreateInstance(typeof(CacheType), new object[] { this }));
                }
            }
            finally
            {
                m_CacheManagerLock.ExitWriteLock();
            }
            return (CacheType)m_Caches[typeof(CacheType)];
        }

        /// <summary>
        /// Adott cache kérése a managertől, mobilból
        /// </summary>
        /// <typeparam name="CacheType">Cache típusa</typeparam>
        /// <returns>Cache példány</returns>
        public CacheType AquireCacheMobile<CacheType>() where CacheType : Cache
        {
            m_CacheManagerLock.EnterWriteLock();
            try
            {
                if (!m_Caches.ContainsKey(typeof(CacheType)))
                {
                    m_Caches.Add(typeof(CacheType), (Cache)Activator.CreateInstance(typeof(CacheType), new object[] { this }));
                }
                return (CacheType)m_Caches[typeof(CacheType)];
            }
            catch (Exception ex)
            {
                SDAServer.Instance.Logger.ExceptionThrown(ex);
            }
            finally
            {
                m_CacheManagerLock.ExitWriteLock();
            }
            return null;
        }
    }
}