using CP.Cache;
using CP.Model;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace CP.Business
{
    public class NoticeBll : BaseBll
    {
        /// <summary>
        /// 缓存
        /// </summary>
        static WMCache cache = WMCache.GetCacheService();

        public static List<Notice> GetNoticeList()
        {
            string key = string.Format(CacheKeys.Notice);
            List<Notice> list = cache.GetObject<List<Notice>>(key);
            if (list == null)
            {
                list = new List<Notice>();
                var dc = new DataConnect();
                string sql = string.Format(" order by addtime asc");
                list = dc.db.Fetch<Notice>(sql);
                cache.AddObject(key, list, (int)CacheTime.System);
            }
            return list;
        }

        public static List<Notice> GetNoticePage(int pageSize, int pageIndex, out int count)
        {
            var list = GetNoticeList();
            count = list.Count;
            return list == null ? new List<Notice>() : list.Skip(pageSize * (pageIndex - 1)).Take(pageSize).ToList();
        }
        public static Notice GetNotice(int id)
        {
            var list = GetNoticeList();
            return list == null ? new Notice() : list.Where(a => a.id == id).FirstOrDefault();
        }
    }
}