using System;
using System.Collections.Generic;
using HcUtility.Comm;
using Microsoft.Practices.EnterpriseLibrary.Data;
using System.Data;
using System.Data.Common;

namespace HcUtility.Core
{
    /// <summary>
    /// 功能: 单据保存的类
    /// 创建: 吴伟  2009-05-08
    /// 
    /// </summary>
    public class ModelObjectDBBill : ModelObjectDB
    {
        protected override DBResult BeforeSaveHandler(List<ModelObjectBase> dataList, Database db,
                IDbConnection idbConn, IDbTransaction idbTran, ref List<DbCommand> listCmd)
        {
            DBResult result = new DBResult();
            result.Success = true;
            result.Message = "";

            try
            {
                foreach (ModelObjectBase modeldata in dataList)
                {
                    ModelObjectBill mobBill = (ModelObjectBill)modeldata;
                    if (mobBill.DbOperationType == DbOperationType.DbotIns)
                    {
                        string headBillno = mobBill.GetBillNoValue().ToString();
                        if (headBillno == String.Empty || headBillno == "*")
                        {
                            headBillno = mobBill.GetNewBillNo(db);
                            mobBill.SetPropertyValue(mobBill.GetBillNoFieldName(),headBillno);
                            if (headBillno == "" || headBillno == "*") 
                                throw new ModelDbException("取得单据号出现错误!");
                        }
                    }
                    foreach (List<ModelObjectBase> moblist in modeldata.BodyList)
                    {
                        result = SaveBodyListBillNo(moblist, mobBill.GetBillNoValue().ToString());
                        if (!result.Success)
                        {
                            throw new ModelDbException(result.Message);
                        }
                    }

                    //当为修改时判断时间戳
                    if (mobBill.DbOperationType == DbOperationType.DbotUpd)
                    {
                        result = mobBill.CheckTimeMark(db,idbConn,idbTran,ref listCmd);
                        if (!result.Success)
                            break;
                    }
                }
            }
            catch(Exception e)
            {
                result.Success = false;
                if (!(e is ModelDbException))
                    result.Message = e.ToString();
            }
            return result;
        }

        protected override DBResult AfterSaveHandler(List<ModelObjectBase> dataList, Database db,
                IDbConnection idbConn, IDbTransaction idbTran, ref List<DbCommand> listCmd)
        {
            DBResult result = new DBResult();
            result.Success = true;

            List<string> listBillNo = new List<string>();
            try
            {   
                foreach (ModelObjectBase mob in dataList)
                {
                    ModelObjectBill mobBill = (ModelObjectBill)mob;
                    string billno = mobBill.GetBillNoValue().ToString();
                    if (listBillNo.Contains(billno))
                        continue;
                    else
                        listBillNo.Add(billno);
                    result = mobBill.AfterSaveHandler(db,idbConn,idbTran,ref listCmd);
                    if(!result.Success)
                        throw new ModelDbException(result.Message);
                }
            }
            catch(Exception e)
            {
                result.Success = false;
                if (!(e is ModelDbException))
                    result.Message = e.ToString();
            }

            return result;
        }

        private DBResult SaveBodyListBillNo(List<ModelObjectBase> moblist, string billNo) {
            DBResult result = new DBResult();
            result.Success = true;
            foreach (ModelObjectBase mod in moblist) {
                result = SaveBodyBillNo(mod, billNo);
                if (!result.Success)
                    break;
            }
            return result;
        }
        private DBResult SaveBodyBillNo(ModelObjectBase modeldata, string billNo) {
            DBResult result = new DBResult();
            result.Success = true;
            ModelObjectBill modelBill = (ModelObjectBill)modeldata;
            if (modelBill.DbOperationType == DbOperationType.DbotIns)
                modelBill.SetPropertyValue(modelBill.GetBillNoFieldName(), billNo);

            foreach (List<ModelObjectBase> moblist in modeldata.BodyList) {
                result = SaveBodyListBillNo(moblist, billNo);
                if (!result.Success)
                    break;
            }
            return result;
        }
        private string GetNewBillNo(Database db, string ywType)
        {
            string billNo = String.Empty;
            using (DbCommand cmd = db.GetStoredProcCommand("sSysGetBillNo"))
            {
                db.AddInParameter(cmd, "ps_BillType", DbType.String, ywType);
                db.AddOutParameter(cmd, "ps_BillNo", DbType.String, 20);
                db.ExecuteNonQuery(cmd);
                billNo = Convert.ToString(db.GetParameterValue(cmd, "ps_BillNo"));
            }
            return billNo;
        }
    }
}