using System;
using System.Collections.Generic;

using System.Data;


using MyShop.DALFactory;
using MyShop.IDAL;
using MyShop.Model;

namespace MyShop.BLL
{
    public class Log
    {

        private ILog dal = DataAccess.CreateLog();

        #region  ILog

        public int Add(LogInfo model)
        {
            if (model == null)
            {
                return 0;
            }
            return dal.Add(model);
        }

        public int Delete(string filter)
        {
            if (string.IsNullOrEmpty(filter))
                return 0;
            return dal.Delete(filter);
        }

        public bool Exist(string filter)
        {
            filter = filter.Trim();
            if (string.IsNullOrEmpty(filter))
                return false;
            return dal.Exist(filter);
        }
        public DataSet GetDataSet()
        {
            return dal.GetDataSet();
        }

        public DataSet GetDataSet(string filter)
        {
            filter = filter.Trim();
            if (string.IsNullOrEmpty(filter))
                return null;
            return dal.GetDataSet(filter);
        }

        public LogInfo GetModel(DataRow dr)
        {
            if (dr == null)
                return null;
            return dal.GetModel(dr);
        }

        private DataSet Query(string sql)
        {
            sql = sql.Trim();
            if (string.IsNullOrEmpty(sql))
                return null;
            return dal.Query(sql);
        }

        public int Update(LogInfo model, string filter)
        {
            if (model == null)
                return 0;
            filter = filter.Trim();
            if (string.IsNullOrEmpty(filter))
                return 0;
            return dal.Update(model, filter);
        }

        #endregion

        #region common

        public int Add(LogInfo model, out string msg)
        {
            msg = "";
            if (model == null)
            {
                msg = msg + "<li>数据不能为空</li>";
                return 0;
            }
            bool isErr = false;

            if (isErr)
                return 0;

            int count = 0;
            count = Add(model);
            if (count == 0)
                msg = "<li>系统发生错误,请重新添加!</li>";
            if (count == 1)
                msg = "<li>添加成功!</li>";
            return count;
        }

        public int Delete(int logId)
        {
            if (string.IsNullOrEmpty(logId.ToString()))
                return 0;
            string filer;
            filer = " logId =" + logId;
            return Delete(filer);
        }
        public int Update(LogInfo model)
        {

            if (model == null)
            {
                return 0;
            }
            string filter;
            filter = " logId=" + model.LogID;
            return Update(model, filter);
        }

        public LogInfo GetModel(int logId)
        {
            DataSet dataset = new DataSet();
            dataset = GetDataSet(" logId=" + logId);
            if (dataset != null && dataset.Tables[0].Rows.Count > 0)
                return GetModel(dataset.Tables[0].Rows[0]);
            return null;
        }

        #endregion


        #region 后台管理

        /// <summary>
        /// 快速搜索
        /// </summary>
        /// <param name="trademarkType"></param>
        /// <returns></returns>
        public DataSet QuickSearchByLogType(int logType)
        {
            DataSet ds = new DataSet();
            string filter = " logType=" + logType + "  order by LogId desc  ";
            return GetDataSet(filter);
        }

        /// <summary>
        /// 高级查询
        /// </summary>
        /// <param name="field"></param>
        /// <param name="keywords"></param>
        /// <returns></returns>
        public DataSet KeywordsSearch(string field, string keywords)
        {
            field = field.Trim();
            keywords = keywords.Trim();
            if( string.IsNullOrEmpty(field) || string.IsNullOrEmpty(keywords) )
                return null;
            DataSet ds = new DataSet();

            return GetDataSet(" " + Utils.ReplaceBadSQL(field) + " like '%" + Utils.ReplaceBadSQL(keywords) + "%'  order by LogId desc  ");
        }

        /// <summary>
        /// 删除两天以前的日志
        /// </summary>
        /// <returns></returns>
        public int DeleteLogBeforeTwoDays()
        {
            return dal.DeleteLogBeforeTwoDays();
        }

        public DataSet GetDataSetOrderByLogId()
        {
            return GetDataSet(" LogId > 0 order by LogId desc  ");
        }
        #endregion
    }
}