using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using WeighBusiness.BO;
using WeighBusiness.Utils;
using WeighBusiness.Utils.SqlUtils;

namespace WeighBusiness.BL
{
	public class SynchronousLogBL
	{
		public static bool Insert(SynchronousLog dmo)
		{
			if (dmo.ID > 0)
				return Update(dmo);
			//验证 满足BillTypeID、TerminalBillID为指定值的数据 是否存在。存在则更新
			var oldDmoIfExist = GetSynchronousDmoFromBillID(dmo.BillTypeID, dmo.TerminalBillID);
			if (oldDmoIfExist != null) {
				dmo.ID = oldDmoIfExist.ID;
				return Update(dmo);
			}

			string insertSql = InsertUtil.GetInsertSql(TableNames.同步日志, new string[] { "BillTypeID", "TerminalBillID", "RemoteBillID" }, new string[] { dmo.BillTypeID.ToString(), dmo.TerminalBillID.ToString(), dmo.RemoteBillID.ToString() });
			if (string.IsNullOrEmpty(insertSql)) {//没有数据要插入时。TODO:是否处理妥当？
				return true;
			}

			return SqlHelperEx.DoExecuteNonQuery(insertSql);
		}

		public static bool Update(SynchronousLog dmo)
		{
			var oldDmo = Load(dmo.ID);
			IList<string> needUpdateItems = GetNeedUpdateItems(dmo, oldDmo);
			string updateSql = UpdateUtil.GetUpdateString(TableNames.同步日志, "ID", dmo.ID.ToString(), needUpdateItems.ToArray());

			if (string.IsNullOrEmpty(updateSql))
				throw new ApplicationException("没有修改！");

			return SqlHelperEx.DoExecuteNonQuery(updateSql);
		}

		//public static void Save(SynchronousLog dmo)
		//{
		//  if (dmo.ID > 0)
		//    Update(dmo);
		//  Insert(dmo);
		//}

		public static bool Delete(long id)
		{
			string deleteSql = DeleteUtil.GetDeleteString(TableNames.同步日志, "TerminalBillID", id.ToString());

			return SqlHelperEx.DoExecuteNonQuery(deleteSql);
		}

		private static SynchronousLog Load(long id)
		{
			return SynchronousLogQueryUtil.GetLocalSynchronousLog(id);
		}

		public static SynchronousLog GetSynchronousDmoFromBillID(short billTypeID, long terminalBillID)
		{
			return SynchronousLogQueryUtil.GetLocalSynchronousLogFromBillID(billTypeID, terminalBillID);
		}

		private static IList<string> GetNeedUpdateItems(SynchronousLog sl, SynchronousLog oldSl)
		{
			IList<string> updateItems = new List<string>();
			if (sl.BillTypeID != oldSl.BillTypeID) {
				updateItems.Add("BillTypeID");
				updateItems.Add(sl.BillTypeID.ToString());
			}
			if (sl.TerminalBillID != oldSl.TerminalBillID) {
				updateItems.Add("TerminalBillID");
				updateItems.Add(sl.TerminalBillID.ToString());
			}
			if (sl.RemoteBillID != oldSl.RemoteBillID) {
				updateItems.Add("RemoteBillID");
				updateItems.Add(sl.RemoteBillID.ToString());
			}
			if (sl.SynchronousMessage != oldSl.SynchronousMessage) {
				updateItems.Add("SynchronousMessage");
				updateItems.Add(sl.SynchronousMessage);
			}
			return updateItems;
		}

		public static long[] GetAllNotSynchronousDmo(short billTypeID)
		{
			return SynchronousLogQueryUtil.GetAllNotSynchronousBillIDs(billTypeID);
		}
	}
}