using Infrastructure.Attribute;
using Infrastructure.Extensions;
using ZR.LiveForum.Model.Liveforum.Dto;
using ZR.LiveForum.Model.Liveforum;
using ZR.Repository;
using ZR.Service.Liveforum.ILiveforumService;

namespace ZR.Service.Liveforum
{
    /// <summary>
    /// 主播排行记录Service业务层处理
    /// </summary>
    [AppService(ServiceType = typeof(IT_StreamersService), ServiceLifetime = LifeTime.Transient)]
    public class T_StreamersService : BaseService<T_Streamers>, IT_StreamersService
    {
        /// <summary>
        /// 查询主播排行记录列表
        /// </summary>
        /// <param name="parm"></param>
        /// <returns></returns>
        public PagedInfo<T_StreamersDto> GetList(T_StreamersQueryDto parm)
        {
            var predicate = QueryExp(parm);

            var response = Queryable()
                //.OrderBy("FlowerCount desc")
                .Where(predicate.ToExpression())
                .ToPage<T_Streamers, T_StreamersDto>(parm);

            return response;
        }


        /// <summary>
        /// 获取详情
        /// </summary>
        /// <param name="Id"></param>
        /// <returns></returns>
        public T_Streamers GetInfo(int Id)
        {
            var response = Queryable()
                .Where(x => x.Id == Id)
                .First();

            return response;
        }

        /// <summary>
        /// 添加主播排行记录
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public T_Streamers AddT_Streamers(T_Streamers model)
        {
            model.CreatedAt = DateTime.Now;
            model.UpdatedAt = DateTime.Now;
            model.UserId = 0;
            model.OnlineCount = 0;
            model.IsLive = false;
            model.FlowerCount = 0;
            return Insertable(model).ExecuteReturnEntity();
        }

        /// <summary>
        /// 修改主播排行记录
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public int UpdateT_Streamers(T_Streamers model)
        {
            return Update(model, true);
        }

        /// <summary>
        /// 查询导出表达式
        /// </summary>
        /// <param name="parm"></param>
        /// <returns></returns>
        private static Expressionable<T_Streamers> QueryExp(T_StreamersQueryDto parm)
        {
            var predicate = Expressionable.Create<T_Streamers>();

            predicate = predicate.AndIF(!string.IsNullOrEmpty(parm.StreamerId), it => it.StreamerId.Contains(parm.StreamerId));
            predicate = predicate.AndIF(!string.IsNullOrEmpty(parm.Nickname), it => it.Nickname.Contains(parm.Nickname));
            predicate = predicate.AndIF(!string.IsNullOrEmpty(parm.Category), it => it.Category == parm.Category);
            return predicate;
        }
    }
}