using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using NPOI.HSSF.UserModel;

namespace CK.SCP.Common
{
   public class MyExcel
    {
        public HSSFWorkbook hssfworkbook = null;

        public string filename = null;

        public HSSFSheet sheet = null;

        public void NewExcel(string _filename)
        {
            this.filename = _filename;
            this.hssfworkbook = new HSSFWorkbook();
        }

        public void OpenExcel(string _filename)
        {
            this.filename = _filename;
            FileStream file = new FileStream(this.filename, FileMode.Open, FileAccess.Read);
            this.hssfworkbook = new HSSFWorkbook(file);
        }

        public void NewSheet(string sheetname)
        {
            this.sheet = (HSSFSheet)this.hssfworkbook.CreateSheet(sheetname);
        }

        public void OpenSheet(string sheetname)
        {
            this.sheet = (HSSFSheet)this.hssfworkbook.GetSheet(sheetname);
        }

        public void CreateRow(int rowindex)
        {
            this.sheet.CreateRow(rowindex);
        }

        public void CreateCell(int rowindex, int colindex)
        {
            this.sheet.GetRow(rowindex).CreateCell(colindex);
        }

        public void SetCellValue(int rowindex, int colindex, string value)
        {
            this.sheet.GetRow(rowindex).GetCell(colindex).SetCellValue(value);
        }

        public void Save()
        {
            FileStream file = new FileStream(this.filename, FileMode.Create);
            this.hssfworkbook.Write(file);
            file.Close();
        }
    }
}