using System;
using System.Collections.Generic;
using System.Data;
using System.Linq;
using System.Text;
using FireBirdUtil.SqlUtils;
using Forks.JsonRpc.Client;
using Forks.JsonRpc.Client.Data;
using WeighBusiness.BO;
using WeighBusiness.Utils;
using WeighBusiness.Utils.SqlUtils;

namespace WeighBusiness.BL
{
  public static class GoodsBL
  {
    public static List<Goods> GetAllLocalPSInfoVersion()
    {
      var table = SqlHelperEx.DoQuery("select Goods_ID,RowVersion from Goods");
      if (table.Rows.Count == 0)
        return new List<Goods>();
      var list = new List<Goods>();
      foreach (DataRow row in table.Rows) {
        var goods = new Goods();
        var goods_ID = row[0].ToString();
        if (!string.IsNullOrEmpty(goods_ID)) {
          goods.Goods_ID = (long)(int.Parse(goods_ID));
        }
        goods.RowVersion = int.Parse(row[1].ToString());
        list.Add(goods);
      }
      return list;
    }

    public static bool Insert(Goods goods)
    {
      string insertSql = InsertUtil.GetInsertSql(TableNames.存货,
        new string[] { "Goods_ID", "AllowDisplay", "RowVersion"},
        new string[] { goods.Goods_ID.ToString(), goods.AllowDisplay.ToString(), goods.RowVersion.ToString() });
      return ExcuteSql(insertSql);
    }

    private static bool ExcuteSql(string sql)
    {
      bool success;
      using (var she = new SqlHelperEx()) {
        she.CreateTransaction();
        she.ExecuteNonQuery(sql, out success);
        if (!success)
          she.Rollback();
        else
          she.Commit();
      }
      return success;
    }

    public static void Delete(long ID)
    {
      var sql2 = SqlUtil.GetDeleteSql(TableNames.存货, "where Goods_ID=" + ID.ToString());
      ExcuteSql(sql2);
    }

    public static void Delete()
    {
      var sql2 = SqlUtil.GetDeleteSql(TableNames.存货);
      ExcuteSql(sql2);
    }

    public static void SyncGoods()
    {
      var method = "/MainSystem/B3_HaoYue/Rpcs/RpcFun/GetGoodsRowVersion";
      var goodsVersion = RpcFacade.Call<List<Tuple<long?,int?,bool?>>>(method);
      var oldGoods = GetAllLocalPSInfoVersion();

      var needInsertGoodsID = new List<long?>();
      var needDeleteAndInsertGoodsID = new List<long?>();
      if (goodsVersion.Count > 0) {
        if (oldGoods == null || oldGoods.Count() <= 0) {
          goodsVersion.ForEach(x => needInsertGoodsID.Add(x.Item1));
        } else {
          foreach (var goods in goodsVersion) {
            var goods_ID = goods.Item1;
            var oldGS = oldGoods.Where(x => x.Goods_ID == goods_ID);
            if (oldGS != null && oldGS.Count() > 0 && oldGS.FirstOrDefault().RowVersion != goods.Item2) {
              needDeleteAndInsertGoodsID.Add(goods_ID);
            } else if (oldGS == null || oldGS.Count() <= 0) {
              needInsertGoodsID.Add(goods_ID);
            }
          }

          foreach (var oldVersion in oldGoods) {
            if (!goodsVersion.Any(x => x.Item1 == oldVersion.Goods_ID)) {
              Delete(oldVersion.Goods_ID);
            }
          }
        }
      } else {
        Delete();
      }

      if (needDeleteAndInsertGoodsID.Count() > 0) {
        foreach (var gsID in needDeleteAndInsertGoodsID) {
          GoodsBL.Delete(gsID.Value);
          needInsertGoodsID.Add(gsID.Value);
        }
      }

      if (needInsertGoodsID.Count > 0) {
        if (goodsVersion.Count() > 0) {
          var list = new List<Tuple<long?, int?, bool?>>();
          foreach (var gsID in needInsertGoodsID) {
            list.Add(goodsVersion.Where(x => x.Item1 == gsID).FirstOrDefault());
          }

          foreach (var detail in list) {
            var goods = new Goods();
            goods.Goods_ID = detail.Item1.Value;
            goods.RowVersion = detail.Item2.Value;
            goods.AllowDisplay = detail.Item3.Value;
            GoodsBL.Insert(goods);
          }
        }
      }
    }
  }
}