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

namespace CB.Data
{
    public partial class Caches
    {
        /// <summary>
        /// 获取专栏列表
        /// </summary>
        /// <returns></returns>
        public static IList<ColumnInfo> GetColumnList()
        {
            var list = CB.Cache.CBCache.GetCacheService().GetObject(CB.Cache.CacheKeys.ColumnList) as IList<ColumnInfo>;
            if (null == list)
            {
                list = CB.Data.ColumnService.ToList();
                CB.Cache.CBCache.GetCacheService().AddObject(CB.Cache.CacheKeys.ColumnList, list);
            }
            return list;
        }

        /// <summary>
        /// 根据专栏ID获取专栏信息
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public static ColumnInfo GetColumnInfo(int id)
        {
            var list = GetColumnList();
            if (null == list || 0 >= list.Count)
                return null;

            ColumnInfo entity = null;
            foreach (var item in list)
            {
                if (id == item.Id && 0 < item.Status)
                {
                    entity = item; break;
                }
            }
            return entity;
        }

        /// <summary>
        /// 根据专栏URL重写获取专栏信息
        /// </summary>
        /// <param name="rewriteUrl"></param>
        /// <returns></returns>
        public static ColumnInfo GetColumnInfo(string rewriteUrl)
        {
            var list = GetColumnList();
            if (null == list || 0 >= list.Count)
                return null;

            ColumnInfo entity = null;
            foreach (var item in list)
            {
                if (rewriteUrl == item.RewriteUrl && 0 < item.Status)
                {
                    entity = item; break;
                }
            }
            return entity;
        }

        /// <summary>
        /// 获取所属彩种所有专栏
        /// </summary>
        /// <param name="lottery"></param>
        /// <returns></returns>
        public static IList<ColumnInfo> GetColumnList(string lottery)
        {
            var list = GetColumnList();
            if (null == list || 0 >= list.Count)
                return null;

            IList<ColumnInfo> r = new List<ColumnInfo>();
            foreach (var item in list)
            {
                if (item.Lottery.Equals(lottery, StringComparison.CurrentCultureIgnoreCase))
                { r.Add(item); }
            }
            return r;
        }

        /// <summary>
        /// 获取所属彩种热门专栏
        /// </summary>
        /// <param name="topSize"></param>
        /// <returns></returns>
        public static IList<ColumnInfo> GetHotColumnList(string lottery)
        {
            var list = GetColumnList(lottery);
            if (null == list || 0 >= list.Count)
                return null;

            return list.OrderByDescending(item => item.Status).ToList();
        }
    }
}