using System;
using System.Linq;
using System.Text;
using System.Data.Common;
using System.Linq.Expressions;
using System.Collections.Generic;
using System.Threading.Tasks;
using YiSha.Util;
using YiSha.Util.Extension;
using YiSha.Util.Model;
using YiSha.Data;
using YiSha.Data.Repository;
using YiSha.Enum;
using System.ComponentModel.DataAnnotations.Schema;
using YiSha.Entity.ZX;
using YiSha.Model.Param.ZX;
using YiSha.IService.ZX;
using YiSha.Model.Result.ZX;
using YiSha.Web.Code;

namespace YiSha.Service.ZX
{
    /// <summary>
    /// 创 建：cmzx
    /// 日 期：2021-04-15 09:36
    /// 描 述：资讯专家标签服务实现类（部分类）
    /// </summary>
    public partial class LabelModelsService
    {
        private IRepositoryFactory _baseRepository;
        public LabelModelsService(IRepositoryFactory baseRepository)
        {
            _baseRepository = baseRepository;
        }

        /// <summary>
        /// 获取分页数据
        /// </summary>
        /// <param name="param">请求参数</param>
        /// <param name="pagination">分页条件</param>
        /// <returns></returns>
        public async Task<List<LabelModelsPageJoinModel>> GetPageListPartial(LabelModelsListParam param, Pagination pagination)
        {
            var parameters = new List<DbParameter>();
            var sql = SqlPageList(param, pagination, out parameters);
            var list = await _baseRepository.BaseRepository(dbConnectType).FindList<LabelModelsPageJoinModel>(sql, parameters.ToArray());
            return list.ToList();
        }

        /// <summary>
        /// 保存数据（由于之前数据库设计不规范，无法实现在新增、修改时保存正确的操作用户信息，每张表的创建时间和创建人id、创建人姓名都不一样，且这些字段是必填项）
        /// </summary>
        /// <param name="entity">实体参数</param>
        /// <returns></returns>
        public async Task<int> SaveFormPartial(LabelModelsEntity entity)
        {
            OperatorInfo user = await Operator.Instance.Current(entity.Token);
            if (entity.Id.IsNullOrZero())
            {
                entity.createTime = DateTime.Now;
                entity.createUserId = user?.UserId;
                entity.createUserName = user?.UserName;
                return await _baseRepository.BaseRepository(dbConnectType).Insert(entity);
            }
            else
            {
                return await _baseRepository.BaseRepository(dbConnectType).Update(entity);
            }
        }

        #region 私有方法
        /// <summary>
        /// 列表条件过滤
        /// 建议该方法放在Partial部分类中，因为代码生成时当前类会被覆盖（该方法在生成时将会被注释）
        /// </summary>
        /// <param name="param"></param>
        /// <returns></returns>
        private Expression<Func<LabelModelsEntity, bool>> ListFilterPartial(LabelModelsListParam param)
        {
            var expression = LinqExtensions.True<LabelModelsEntity>();
            if (param != null)
            {
                if (!string.IsNullOrEmpty(param.LabelName))
                    expression = expression.And(t => t.labelName.Equals(param.LabelName));

                if (!param.MenuId.IsNullOrZero())
                    expression = expression.And(t => t.menuId == param.MenuId);
            }
            return expression;
        }

        /// <summary>
        /// 获取分页Sql语句
        /// </summary>
        /// <param name="param"></param>
        /// <returns></returns>
        private string SqlPageList(LabelModelsListParam param, Pagination pagination, out List<DbParameter> parameters)
        {
            parameters = new List<DbParameter>();
            var where = new StringBuilder();
            where.Append(" 1 = 1 ");
            if (param != null)
            {
                if (!string.IsNullOrEmpty(param.LabelName))
                {
                    where.Append(" and lm.LabelName like @LabelName ");
                    parameters.Add(DbParameterExtension.CreateDbParameter("@LabelName", $"%{param.LabelName}%", dbConnectType));
                }

                if (!string.IsNullOrEmpty(param.MenuName))
                {
                    where.Append(" and mmm.menuName like @MenuName ");
                    parameters.Add(DbParameterExtension.CreateDbParameter("@MenuName", $"%{param.MenuName}%", dbConnectType));
                }
            }

            //获取分页数据Sql
            var pageSql = $@"select lm.*,mmm.menuName
                             from  LabelModels lm
                             left join menuManagerModels mmm on lm.menuId = mmm.id
                             where {where.ToString()}";
            //统计总数据Sql
            var totalSql = $@"select count(1)
                              from  LabelModels lm
                              left join menuManagerModels mmm on lm.menuId = mmm.id
                              where {where.ToString()}";
            pageSql = SqlserverHelper.GetInstance.SqlPageList(pageSql, totalSql, pagination);
            return pageSql;
        }
        #endregion
    }
}