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>
    /// 协议内容Service业务层处理
    /// </summary>
    [AppService(ServiceType = typeof(IT_AgreementsService), ServiceLifetime = LifeTime.Transient)]
    public class T_AgreementsService : BaseService<T_Agreements>, IT_AgreementsService
    {
        /// <summary>
        /// 查询协议内容列表
        /// </summary>
        /// <param name="parm"></param>
        /// <returns></returns>
        public PagedInfo<T_AgreementsDto> GetList(T_AgreementsQueryDto parm)
        {
            var predicate = QueryExp(parm);

            var response = Queryable()
                //.OrderBy("Id desc")
                .Where(predicate.ToExpression())
                .ToPage<T_Agreements, T_AgreementsDto>(parm);

            return response;
        }


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

            return response;
        }

        /// <summary>
        /// 添加协议内容
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public T_Agreements AddT_Agreements(T_Agreements model)
        {
            return Insertable(model).ExecuteReturnEntity();
        }

        /// <summary>
        /// 修改协议内容
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public int UpdateT_Agreements(T_Agreements model)
        {
            return Update(model, true, "修改协议内容");
        }

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

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