using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using LeaRun.Data;
using LeaRun.Application.Entity.SecondaryWaterSupply;
using LeaRun.Util.WebControl;
using System.Data;
using LeaRun.Util;
namespace LeaRun.Application.Service.SecondaryWaterSupply
{
    public class HistoryService
    {
        SqlHelper sqlHelper = new SqlHelper("SecondyWaterSupplyDb");
        
        /// <summary>
        /// 设备历史记录
        /// </summary>
        /// <param name="ids"></param>
        /// <param name="pagination"></param>
        /// <param name="keyWord"></param>
        /// <param name="begin"></param>
        /// <param name="end"></param>
        /// <returns></returns>
        public IEnumerable<DeviceEntity> GetHisData(string ids,Pagination pagination,string keyWord,string begin,string end)
        {

            try
            {
                string selSql = "SELECT * FROM dbo.SecondaryWaterSupplyBase WHERE SecondaryWaterSupplyId IN (" + ids + ")";
                DataTable dtDevice = sqlHelper.ExecuteDataTable(selSql, CommandType.Text, null);
                StringBuilder hisSql = new StringBuilder();
                for (int row = 0; row < dtDevice.Rows.Count; row++)
                {
                    string tabName = dtDevice.Rows[row]["TableName"].ToString();
                    string deviceName = dtDevice.Rows[row]["PumpHouseName"].ToString();
                    hisSql.Append("SELECT '"+deviceName+ "' as PumpHouseName , * FROM " + tabName+ " WHERE GetDateTime BETWEEN '" + begin+"' AND '"+end+"'");
                    if (row < dtDevice.Rows.Count - 1)
                    {
                        hisSql.Append("UNION");
                    }
                }
                int total = pagination.records;
                DataTable dtHis = sqlHelper.ExecuteDataTable(hisSql.ToString(), "SecondaryWaterSupplyId",true,pagination.rows,pagination.page,out total,null);
                pagination.records = total;

                return DataHelper.DataTableToT<DeviceEntity>(dtHis);
            }
            catch (Exception ex)
            {
                return null;
            }
        }
    }
}