using System.Collections.Generic;
using System.Linq;
using CB.Cache;
using CB.Entity;

namespace CB.Data
{
    public partial class Caches
    {
        /// <summary>
        /// 获取图库列表
        /// </summary>
        /// <returns></returns>
        public static IList<PictureInfo> GetPictureList()
        {
            var cache = CBCache.GetCacheService();
            IList<PictureInfo> list = cache.GetObject(CacheKeys.ColumnPictureList) as IList<PictureInfo>;
            if (null == list)
            {
                list = PictureService.ToList();
                cache.AddObject(CacheKeys.ColumnPictureList, list);
            }
            return list;
        }

        public static List<PictureInfo> GetCidPictureList(int cid)
        {
            var piccs = Cache.GetPicClassList(cid);
            var pics = GetPictureList();
            if (null == pics || 0 >= pics.Count || null == piccs || 0 >= piccs.Count)
                return null;

            return piccs.Select(picc => pics.FirstOrDefault(x => picc.Pid == x.Id)).Where(info => info != null).ToList();
            //List<PictureInfo> result = new List<PictureInfo>();
            //foreach (var picc in piccs)
            //{
            //    PictureInfo info = pics.FirstOrDefault(x => picc.Pid == x.Id);
            //    if(info!= null)
            //    result.Add(info);
            //}
            //return result;
        }


    }
}