using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using Stone.Common;
using System.Windows.Forms;
using Stone.Entity;
using Gm_WMS.DataAccess.DataService;


namespace Stone.WinBiz.BasicData
{
    public class F_Base
    {
        /// <summary>
        /// 基础资料类型
        /// </summary>
        public string type = "";
        /// <summary>
        /// 基础资料的名称
        /// </summary>
        public string name = string.Empty;
        /// <summary>
        /// 基础资料储存数据的DataSet
        /// </summary>
        public DataSet dsMain = null;


        public EntityBase entity = null;
        public EntityBase entityView = null;

        public string strOrder = "[ID] asc";
        public F_Base()
        {

        }



        /// <summary>
        /// 绑定数据到DataSet中去(分页)
        /// </summary>
        /// <param name="strWhere"></param>
        //public virtual void BindPageData(string strWhere, int rows1, int rows2)
        //{
        //    string strOrder = "id asc";

        //    if (entityView == null) entityView = entity;

        //    dsMain = entityView.GetDataLimit(rows1, rows2, "", strWhere, strOrder);
        //    dsMain.Tables[0].TableName = "Data";
        //    dsMain.Tables.Add(entityView.GetData("count(*) as AllCount", strWhere, "AllCount asc").Tables[0].Copy());
        //    dsMain.Tables[1].TableName = "Page";
        //    dsMain.Tables.Add(entity.Table.Copy());
        //    dsMain.Tables[2].TableName = "Table";
        //}

        public virtual void BindPageData(string strWhere)
        {
            //string strOrder = "id asc";

            if (entityView == null) entityView = entity;

            dsMain = entityView.GetData("", strWhere, strOrder);
            dsMain.Tables[0].TableName = "Data";
            dsMain.Tables.Add(entity.Table.Copy());
            dsMain.Tables[1].TableName = "Table";
        }


        /// <summary>
        /// 获取DataGridView的显示结果
        /// </summary>
        /// <param name="dgv"></param>
        public virtual void GetView(DataGridView dgv)
        {
            dgv.DataSource = dsMain.Tables["Data"];
            dgv.Columns["ID"].Visible = false;  //隐藏ID列
            MyGridViewStyle.GetGridViewState(dgv, "基础资料" + type);
            MyGridViewStyle.SetDataGridMenuCommon(dgv);

            MyGridViewStyle.SetDataGridRowNumber(dgv);
        }

        /// <summary>
        /// 最得指定ID的记录
        /// </summary>
        /// <param name="ID"></param>
        /// <returns></returns>
        public virtual DataRow GetData(int ID)
        {
            DataSet dsData = entity.GetData("", ID); 
            if (dsData.Tables[0].Rows.Count > 0)
            {
                return dsData.Tables[0].Rows[0];
            }
            else
            {
                return null;
            }

        }

        /// <summary>
        /// 查询指定条件的记录
        /// </summary>
        /// <param name="strWhere"></param>
        /// <returns></returns>
        public virtual DataRow GetData(string strWhere)
        {
            DataSet dsData = entity.GetData(strWhere);
            if (dsData.Tables[0].Rows.Count > 0)
            {
                return dsData.Tables[0].Rows[0];
            }
            else
            {
                return null;
            }

        }

        /// <summary>
        /// 验证数据是否正确
        /// </summary>
        /// <param name="drData"></param>
        public virtual void Checking(DataRow drData, bool isNew)
        {
            if (drData["Code"].ToString().Trim() == "")
                throw new Exception("代码不能为空!");

            if (isNew)
            {
                if (entity.GetData("", "Code='" + drData["Code"].ToString() + "'", "id asc").Tables[0].Rows.Count > 0)
                    throw new Exception("代码 " + drData["Code"].ToString() + " 已经存在！");
            }

        }


        /// <summary>
        /// 添加一行数据
        /// </summary>
        /// <param name="drData"></param>
        public virtual void Add(DataRow drData)
        {
            Checking(drData, true);

            entity.Add(drData);

            Stone.WinBiz.BasicData.F_Log.WriteLog("新增数据[" + this.name + "]");
        }

        /// <summary>
        /// 修改一行记录
        /// </summary>
        /// <param name="drData"></param>
        public virtual void Edit(DataRow drData)
        {
            Checking(drData, false);

            entity.Edit(drData);

            Stone.WinBiz.BasicData.F_Log.WriteLog("修改数据[" + this.name + "]");
        }

        /// <summary>
        /// 删除指定ID的记录
        /// </summary>
        /// <param name="ID"></param>
        public virtual void Delete(int ID)
        {
            entity.Del(ID);

            //删除DataSet中的记录
            DataRow[] drDatas = dsMain.Tables[0].Select("ID=" + ID);
            if (drDatas.Length > 0)
            {
                drDatas[0].Delete();
            }


            Stone.WinBiz.BasicData.F_Log.WriteLog("删除数据[" + this.name + "]");
        }

        /// <summary>
        /// 根据Code获取Name
        /// </summary>
        /// <param name="Code"></param>
        /// <returns></returns>
        public virtual string GetNameByCode(string Code)
        {
            DataSet dsData = entity.GetData("Name", "Code='" + Code + "'", "id asc");

            string result = "";
            if (dsData.Tables[0].Rows.Count > 0)
            {
                result = dsData.Tables[0].Rows[0]["Name"].ToString();
            }

            return result;
        }

        /// <summary>
        /// 导入数据
        /// </summary>
        /// <param name="filename"></param>
        public virtual void Input(string filename)
        {
            DataSet dsInput = null;

            Stone.Common.MyExcelDatabase.OpenDatabase(filename, true);
            dsInput = Stone.Common.MyExcelDatabase.ExecuteDataSet("select * from [Sheet1$]");
            Stone.Common.MyExcelDatabase.CloseDatabase();



            LocalDBService db = null;
            try
            {

                db = new LocalDBService();
                db.BeginTrans();

                InputData(dsInput, db);

                db.Commit();
            }
            catch (Exception ex)
            {
                if (db != null) db.Rollback();
                throw new Exception("导入数据失败!\r\n" + "原因为：\r\n" + ex.Message);
            }
            finally
            {
                if (db != null) db.EndTrans();
            }


            Stone.WinBiz.BasicData.F_Log.WriteLog("导出Excel[" + this.name + "]");
            
        }

        public virtual void InputData(DataSet dsData, LocalDBService db)
        {

        }

    }
}